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Advancements in Varicose Vein Treatment: Anatomy, Pathophysiology, Minimally Invasive Techniques, Sclerotherapy, Patient Satisfaction, and Future Directions

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Abstract

Varicose veins are a common vascular condition known for causing discomfort and cosmetic concerns. This comprehensive narrative review delves into their anatomy, pathophysiology, and modern treatment options, with a focus on endovenous techniques and sclerotherapy. The review starts by emphasizing the intricate anatomy of lower extremity venous circulation, underlining the significance of both superficial and deep venous networks in venous return. It also addresses how changes in the venous wall, including valvular insufficiency, contribute to the development of varicose veins. Endovenous techniques like endovenous laser ablation (EVLA), radiofrequency ablation (RFA), and mechanochemical endovenous ablation (MOCA) are explored in detail. These minimally invasive procedures have revolutionized varicose vein treatment, offering high success rates and quicker recovery compared to traditional surgery. The review also highlights their efficacy and safety profiles, aiding clinicians in informed decision-making. Sclerotherapy, a vital modality for varicose veins, is thoroughly examined, covering both liquid and foam sclerotherapy. Foam sclerotherapy, in particular, is recognized for its improved outcomes. The review provides a comprehensive comparison of these treatment modalities, highlighting differences in technical success, recurrence rates, and cost-effectiveness. Patient preferences and satisfaction play a significant role in choosing the right treatment. Safety and potential complications associated with these treatments are explored, with a focus on minor issues and rare adverse events. This review also emphasizes the positive impact of varicose vein interventions on patients' quality of life.
Review began 12/29/2023
Review ended 01/03/2024
Published 01/10/2024
© Copyright 2024
Fayyaz et al. This is an open access article
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Advancements in Varicose Vein Treatment:
Anatomy, Pathophysiology, Minimally Invasive
Techniques, Sclerotherapy, Patient Satisfaction,
and Future Directions
Faris Fayyaz , Viralkumar Vaghani , Chukwuyem Ekhator , Muhammad Abdullah , Rashed A. Alsubari ,
Omar A. Daher , Danyal Bakht , Hanen Batat , Hareem Arif , Sophia B. Bellegarde ,
Pakeezah Bisharat , Muhayya Faizullah
1. Surgery, Dow University of Health Sciences, Karachi, PAK 2. McWilliams School of Biomedical Informatics, The
University of Texas Health Science Center at Houston, Houston, USA 3. Neuro-Oncology, New York Institute of
Technology, College of Osteopathic Medicine, Old Westbury, USA 4. General Surgery and Medicine, Jinnah Medical and
Dental College, Karachi, PAK 5. Medicine and Surgery, October 6 University, Raleigh, USA 6. Obstetrics and
Gynaecology, Beirut Arab University, Tripoli, LBN 7. Medicine and Surgery, Mayo Hospital, Lahore, PAK 8. Medicine,
Yarmouk University, Irbid, JOR 9. Internal Medicine, Ghulam Muhammad Mahar Medical College, Sukkur, PAK 10.
Pathology and Laboratory Medicine, American University of Antigua, Coolidge, ATG 11. Internal Medicine, Khyber
Medical University, Peshawar, PAK 12. Medicine and Surgery, King Edward Medical University, Lahore, PAK
Corresponding author: Muhayya Faizullah, muhayya999@gmail.com
Abstract
Varicose veins are a common vascular condition known for causing discomfort and cosmetic concerns. This
comprehensive narrative review delves into their anatomy, pathophysiology, and modern treatment options,
with a focus on endovenous techniques and sclerotherapy. The review starts by emphasizing the intricate
anatomy of lower extremity venous circulation, underlining the significance of both superficial and deep
venous networks in venous return. It also addresses how changes in the venous wall, including valvular
insufficiency, contribute to the development of varicose veins. Endovenous techniques like endovenous
laser ablation (EVLA), radiofrequency ablation (RFA), and mechanochemical endovenous ablation (MOCA)
are explored in detail. These minimally invasive procedures have revolutionized varicose vein treatment,
offering high success rates and quicker recovery compared to traditional surgery. The review also highlights
their efficacy and safety profiles, aiding clinicians in informed decision-making. Sclerotherapy, a vital
modality for varicose veins, is thoroughly examined, covering both liquid and foam sclerotherapy. Foam
sclerotherapy, in particular, is recognized for its improved outcomes. The review provides a comprehensive
comparison of these treatment modalities, highlighting differences in technical success, recurrence rates,
and cost-effectiveness. Patient preferences and satisfaction play a significant role in choosing the right
treatment. Safety and potential complications associated with these treatments are explored, with a focus
on minor issues and rare adverse events. This review also emphasizes the positive impact of varicose vein
interventions on patients' quality of life.
Categories: Internal Medicine, Cardiac/Thoracic/Vascular Surgery, General Surgery
Keywords: cryotherapy, radioablation, endovenous management, sclerotherapy, varicose seins
Introduction And Background
Varicose veins are a prevalent manifestation of chronic venous disease, affecting a substantial portion of the
global population [1]. These visibly enlarged and tortuous veins, often appearing as protruding purple or
blue-green structures on the legs and feet, extend beyond mere cosmetic concerns. They serve as indicators
of underlying venous insufficiency, a condition characterized by impaired blood circulation back to the
heart. This insufficiency arises due to malfunctioning valves within the affected veins, leading to inefficient
blood pumping, retrograde blood flow, and heightened pressure within the veins. While some individuals
with varicose veins may remain asymptomatic, others experience localized discomfort, including aching,
throbbing, or itching around the affected veins. Over time, more severe symptoms may develop, such as
fatigue, heaviness, and leg cramps [2]. If left untreated, chronic venous insufficiency can advance to a more
severe stage of venous disease. This progression may entail the emergence of edema (swelling), persistent
skin discoloration, eczema (skin inflammation and itching), lipodermatosclerosis (skin and underlying fat
hardening), and venous ulcers (open wounds). Estimates indicate that up to 10% of adults with varicose
veins may eventually develop advanced venous disease, including venous ulcers, superficial
thrombophlebitis (inflammation leading to blood clots), or bleeding from varicosities [3]. It is important to
note that the course of chronic venous insufficiency varies among individuals and does not necessarily
follow a linear progression [2].
Historically, varicose veins were primarily considered a cosmetic concern, with patient preferences heavily
influencing treatment decisions. However, advancements in medical imaging, particularly the adoption of
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Open Access Review
Article DOI: 10.7759/cureus.51990
How to cite this article
Fayyaz F, Vaghani V, Ekhator C, et al. (January 10, 2024) Advancements in Varicose Vein Treatment: Anatomy, Pathophysiology, Minimally
Invasive Techniques, Sclerotherapy, Patient Satisfaction, and Future Directions. Cureus 16(1): e51990. DOI 10.7759/cureus.51990
color flow duplex ultrasonography since the 1980s, have revolutionized our comprehension of varicose
veins. This technology has enabled a more precise assessment of venous reflux and its association with
varicose veins [4]. It is essential to recognize that varicose veins are not merely a benign cosmetic issue but
are associated with more substantial health risks [5]. Recent research has shown that individuals with
varicose veins face up to a five-fold increased risk of developing deep vein thrombosis (DVT), a potentially
life-threatening condition. Moreover, varicose veins have been linked to peripheral arterial disease and
other vascular disorders. While certain risk factors for varicose vein formation, such as age, gender,
pregnancy, obesity, and prior DVT, are well-established, others remain unconfirmed. Genetic components
are also suspected in varicose vein disease, although genetic studies have produced conflicting results [6].
Treatment options for varicose veins range from conservative approaches like compression therapy, lifestyle
adjustments, leg elevation, weight management, and medical treatments to interventional methods such as
laser thermal ablation, endovenous treatments, and surgery [7]. Surgery, once the standard, has been largely
replaced by endovenous thermal ablation (EVTA), offering improved outcomes and fewer complications [8].
Current evidence and guidelines suggest that compression therapy is unnecessary before considering EVTA,
although it may be required for insurance purposes [7]. While surgical procedures like vein stripping and
ligation are effective, they come with higher complication rates and longer recovery times. Emerging
endovenous therapies, including endovenous laser ablation (EVLA), radiofrequency ablation (RFA), steam
vein sclerosis (SVS), and endovenous microwave ablation (EMWA), have demonstrated comparable efficacy
to surgery in treating varicose veins. Importantly, they offer lower complication rates and shorter recovery
times, making them increasingly popular options [8]. Ultrasound-guided foam sclerotherapy (UGFS) serves
as a second-line treatment. However, it may not match the long-term success of EVTA methods like EVLA
and RFA, particularly in cases with thick-walled veins. Nevertheless, UGFS can be effective in specific
scenarios, such as small-diameter or thin-walled veins, making it the optimal choice. Overall, these
advancements in treatment options have significantly improved the management of varicose veins [4].
The objective of this review is to thoroughly analyze diverse therapeutic strategies and their efficacy in
addressing this prevalent vascular condition. Grasping the intricacies of varicose vein anatomy and
pathophysiology becomes imperative. This review will extensively investigate various endovenous
techniques, such as EVLA, RFA, and mechanochemical ablation (MOCA), alongside sclerotherapy
methodologies, encompassing foam and liquid sclerotherapy. It will meticulously evaluate their
mechanisms, relative advantages, and associated complications. Furthermore, this analysis will explore
patient satisfaction, quality of life, and the determinants influencing treatment decisions. By engaging in a
comprehensive discussion concerning prevailing and emerging treatments, as well as emphasizing safety
precautions and outlining future avenues of research, this review aspires to enrich clinical practice,
anticipate forthcoming trends in the management of varicose veins, and ultimately elevate the quality of
patient care and outcomes.
Review
Anatomy and pathophysiology of varicose veins
Lower extremity venous blood circulation entails a complex system comprising both superficial and deep
venous networks. Within the superficial system, prominent entities include the great saphenous veins (GSV),
small saphenous veins (SSV), and their respective tributaries [9]. The GSV courses along the medial aspect of
the calf and thigh, eventually merging with the common femoral vein at the saphenofemoral junction (SFJ).
Conversely, the SSV traverses the posterior calf, entering the popliteal vein at the sapheno-popliteal
junction (SPJ), frequently accompanied by gastrocnemius veins. These systems are intricately
interconnected through various tributaries, bearing vital significance in the return of venous blood to the
heart [10].
In a normally functioning venous system, the deep venous network significantly contributes to
approximately 90% of venous return from the lower limb. The superficial system predominantly receives
drainage from the skin and subcutaneous tissues, with a significant portion of this blood seamlessly entering
the deep system through perforators situated in the foot, calf, and thigh regions. The venous wall comprises
three discernible layers, albeit less distinct compared to arteries. These layers encompass the intima, media,
and adventitia, their composition varying depending on vein size and function [10]. As age and pathological
conditions progress, all three layers succumb to abnormalities, leading to structural derangement of the
venous wall [11].
From a physiological standpoint, venous return against the omnipresent force of gravity hinges upon the
muscle pumps in the foot and calf. Contraction of the calf muscles exerts pressure on intramuscular veins,
channeling blood into the deep system, subsequently propelling it upwards through the leg. The superficial
veins, in turn, serve as collectors of blood from the skin and subcutaneous tissues, facilitating its
transference into the deep system during periods of muscle relaxation, mediated by perforating veins. The
presence of valves within these veins acts as a barrier, preventing retrograde blood flow during muscle
relaxation phases [10]. This valve-mediated closure divides the high-pressure blood column into multiple
lower-pressure segments, thereby substantially mitigating venous pooling and capillary hydrostatic
pressure, effectively averting edema formation in the lower extremities [12]. However, individuals afflicted
2024 Fayyaz et al. Cureus 16(1): e51990. DOI 10.7759/cureus.51990 2 of 9
with venous insufficiency manifest elevated ambulatory venous pressure (AVP), culminating in the
manifestation of symptoms and clinical signs associated with chronic venous insufficiency [10].
Typically, varicose veins are characterized as dilated, tortuous veins exceeding 4 mm in diameter. In
contrast, reticular veins represent smaller, nonpalpable dermal veins measuring less than 4 mm in diameter.
The histological attributes associated with varicose veins exhibit variability, encompassing irregular intimal
thickening, fibrosis, elastic fiber atrophy, collagen fiber thickening, and disarray in muscular layers [13].
These irregularities may display heterogeneity throughout the vein structures [14].
Although reflux serves as the primary hemodynamic aberration in primary venous disorders, it does not
singularly instigate the development of varicose veins. Instead, intrinsic structural and biochemical
anomalies within the vein wall are postulated to play a pivotal role in their etiology. In secondary venous
conditions, the coexistence of both reflux and obstruction is more prevalent than either anomaly in
isolation. Limbs exhibiting post-thrombotic skin alterations and ulceration frequently present with a
combination of these factors [13]. The specific anatomy of reflux and venous obstruction can significantly
influence the severity of chronic venous manifestations, often involving multiple anatomical venous
systems, characterizing multisystemic involvement [15]. The emergence of valvular insufficiency subsequent
to venous recanalization remains an area of active investigation, with potential mechanisms encompassing
thrombus adherence to valve cusps and endothelial erosion [13].
Endovenous techniques
Over the past decade, the landscape of managing symptomatic varicose veins has experienced a substantial
transformation, primarily driven by the introduction of minimally invasive endovascular techniques. Among
these approaches, EVTA techniques, exemplified by EVLA and RFA, have risen to prominence as the first-
line treatments, effectively supplanting conventional surgical interventions for alleviating the discomfort
and cosmetic concerns associated with varicose veins [16].
EVLA, pioneered by Dr. Carlos Bone in 1999, has emerged as a pivotal pillar in contemporary varicose vein
management. This method entails the insertion of a laser fiber into the targeted vein, emitting laser energy
to induce thermal injury within the vessel. The ensuing consequences comprise vein constriction,
thrombosis (clot formation), and the development of venous fibrosis. Within the realm of EVLA,
investigations into variations in laser wavelengths have been undertaken to enhance effectiveness and
mitigate side effects [16]. Radial fibers and lasers characterized by higher wavelengths (such as 1470-1940
nm) have been introduced to promote more uniform damage to the vein wall [17]. Applying a 1470 nm laser
in conjunction with a radial probe, for instance, has yielded promising outcomes, marked by reduced post-
procedural discomfort and diminished recurrence rates when contrasted with the 940 nm fiber [18].
Nonetheless, the overall success rates for EVLA continue to be notably high, residing at 92% [19].
RFA represents another noteworthy minimally invasive modality for varicose vein management guided by
ultrasonography [16]. It harnesses thermal energy delivered via a radiofrequency catheter to ablate the
refluxing segment of the vein. During RFA, radiofrequent energy is used to heat the vein wall of the GSV. The
catheter is inserted into the vein and direct energy is delivered to the endothelium with the result of
collapsing and sealing the vein. One particular device, the ClosureFAST™ RFA system (Medtronic, Dublin,
Ireland), has garnered recognition in RFA procedures. The catheter attains temperatures of 120°C during a
20-second treatment cycle, efficaciously sealing the targeted vein [20]. Significantly, RFA has manifested
high patient satisfaction and quality of life scores, accompanied by swifter recovery periods relative to
traditional surgical interventions [16].
In the comparative analysis between EVLA and RFA, these two modalities exhibit congruous safety profiles
and clinical effectiveness. Both offer elevated occlusion rates and expedited resumption of routine activities
while exhibiting minimal complications such as thrombophlebitis and hematoma [21]. Long-term follow-up
assessments further unveil analogous outcomes regarding venous occlusion rates and patient recuperation.
Particularly noteworthy, a decade-long observational study employing a 1470-nm diode laser with radial
fibers has substantiated enduring and valuable results for EVLA [17].
MOCA, introduced in 2010 through the ClariVein device (Merit Medical, Utah, United States), introduces a
non-thermal and non-tumescent alternative for treating varicose veins. This innovative technique combines
mechanical trauma to the vein wall with concurrent injection of a liquid sclerosant, effectively sealing the
veins [16]. Polidocanol, also known as Aethoxysclerol®, serves as the sclerosant [20]. MOCA is particularly
appealing for addressing veins below the knee and the small saphenous vein, as it mitigates the risk of nerve
injury associated with thermal methods such as EVLA and RFA. In a recent multicenter randomized study,
MOCA was discerned to be significantly less painful than RFA, rendering it a preferred choice for patients
with concerns regarding procedural discomfort. While MOCA may exhibit slightly lower overall success rates
compared to other thermal methodologies, it nevertheless represents a valuable alternative characterized by
diminished pain and reduced potential for nerve damage [16].
Sclerotherapy
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Sclerotherapy represents a versatile medical procedure that assumes a pivotal role in managing varicose
veins, addressing a spectrum of venous concerns through the intravenous administration of a chemical
sclerosant in either liquid or foam form. This technique is adept at targeting intradermal, subcutaneous, and
transfascial veins, as well as epi-, supra-, and subfascial vessels afflicted by venous malformations. The
sclerosant's mode of action revolves around the destruction of the vein's endothelium, initiating a
transformative process known as sclerosis, ultimately converting the varicose vein into a contiguous string
of connective tissue over the long term [22-24].
The primary objective of sclerotherapy does not center on thrombosing the vein, as recanalization may
ensue after this phase. Instead, the paramount goal is to transmute the vein into a continuous strand of
connective tissue, rendering recanalization an impossibility. This outcome culminates in a functional result
commensurate with vein removal or EVTA, thus rendering sclerotherapy a valuable therapeutic option [23].
Certain contraindications necessitate consideration when contemplating sclerotherapy. Absolute
contraindications encompass a known hypersensitivity to the sclerosant, acute venous thromboembolism,
localized infections in the sclerotherapy region or severe systemic infections, and the presence of a
symptomatic right-to-left shunt, particularly pertinent in the context of foam sclerotherapy. Relative
contraindications warrant an individualized risk-benefit evaluation and encompass factors such as
pregnancy, lactation (with potential discontinuation of lactation for two to three days if urgent treatment is
warranted), severe peripheral arterial occlusive disease, compromised general health, a heightened risk of
thromboembolism, extended periods of immobility or bedridden patients, and neurological disorders,
including migraines, following prior foam sclerotherapy [23].
While liquid sclerotherapy has been in use for a substantial duration, its efficacy, particularly for primary
varicose veins, has faced scrutiny due to perceived recurrence rates. However, the advent of foam
sclerotherapy has markedly improved outcomes by creating a more extensive interface between the
sclerosant and the vein, achieved by incorporating air or carbon dioxide bubbles into the foam [25]. This
enhanced methodology engenders improved adhesiveness, heightened echo-visibility attributable to the
presence of air, and an amplified sclerosing potential, consequently facilitating reductions in drug dosages
and concentrations [26].
The sclerosing agent Aethoxysclerol (with the active ingredient polidocanol) has established itself as a
leading choice in sclerotherapy and holds approval for treating both spider veins and varicose veins. Based
on currently available data, liquid sclerotherapy is recommended for spider veins and reticular veins. In
instances where there are inadequate perforating veins, main or side branch varicosities, recurrent
varicosities, pudendal vein varicosis, or venous malformations, foam sclerotherapy has demonstrated its
effectiveness [27].
The generation of sclerosant foam entails the application of various techniques, including the Tessari,
Monfreux, Frullini, and Cabrera methods [26]. These methodologies yield a mixture of air or carbon dioxide
with the liquid sclerosant, with bubble size and sclerosant properties dictating the durability and
effectiveness of the foam [28]. Diminutive bubble sizes and elevated sclerosant concentrations within the
foam engender superior results. Foam sclerotherapy offers numerous advantages, encompassing efficient
displacement of blood, uniform contact of the sclerosant with the endothelium, and provocation of
venospasm post injection. When executed meticulously, this approach attains immediate or early closure in
medium-to-large veins in over 85% of instances, frequently necessitating multiple sessions for
comprehensive success [26].
Sclerotherapy, notably foam sclerotherapy, has garnered favor as a primary modality for refluxing saphenous
veins. It is due to its relatively economical nature, feasibility as an outpatient procedure devoid of
anesthesia, minimal post-procedural discomfort, and procedural repeatability. Nonetheless, the accurate
delineation of indications, selection of the most suitable sclerosant, and utilization of the most efficacious
technique remain areas of ongoing exploration. Long-term data relating to quality of life, symptomatic
amelioration, and aesthetic outcomes continue to accrue, with ongoing clinical trials striving to furnish
more definitive insights into the effectiveness and safety of foam sclerotherapy [26].
Comparison and efficacy
The therapeutic landscape for managing varicose veins encompasses a diverse array of modalities, each
endowed with unique attributes and clinical outcomes. An imperative metric, technical success,
demonstrates a broadly consistent performance across these modalities. Nonetheless, subtle differentiations
in technical success become evident when juxtaposing EVLA with UGFS. EVLA is superior in terms of
technical success compared to UGFS. It is paramount to underscore that, although technical success holds
substantial significance, an equally critical determinant is the recurrence rate. Existing evidence suggests
that, with the exception of a potential long-term benefit for RFA over EVLA, there is generally no substantial
variance in recurrence rates among these therapeutic approaches. This suggests that while EVLA may excel
in terms of technical success, RFA may potentially demonstrate superior long-term efficacy in preventing
the recurrence of varicose veins [29].
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The assessment of treatment efficacy transcends mere technical success and encompasses considerations of
clinical outcomes and cost-effectiveness. Upon scrutiny of both short-term and long-term clinical
outcomes, EVLA emerges as a promising candidate for treating varicose veins. It is proposed as the preferred
therapeutic option for eligible patients, as it yields favorable results at the six-month juncture and exhibits
promise in cost-effectiveness analyses extending over a projected five-year period. This recommendation
aligns harmoniously with the concept that an initial investment in EVLA may yield superior long-term
outcomes and engender cost efficiencies [30]. Another pivotal facet to contemplate pertains to the
recuperative experience of patients. A comparative study found that the highest rate of technical failures is
observed with foam sclerotherapy, while both RFA and foam yielded quicker recovery and less postoperative
pain when compared to EVLA and stripping [31].
Cost-effectiveness represents another critical aspect in ascertaining the most appropriate treatment
modality. While UGFS initially presents as the most economically efficient option, it often necessitates a
higher frequency of subsequent interventions. Day-case surgery, EVLA, and RFA, when performed in
outpatient or office-based settings, hold the potential for cost-effectiveness compared to traditional care.
These findings provide valuable insights for healthcare providers and policymakers when deciding on the
most efficient strategies for managing varicose veins [32]. Furthermore, patient preferences wield
substantial influence in the selection of treatment modalities. While a consensus prevails in favor of
endothermal ablation for truncal reflux and UGFS for localized and recurrent varicose veins, variances in
preferences emerge predicated on factors such as vein dimensions, body mass, leg proportions, and a history
of venous thromboembolism (VTE). Patient preferences frequently contemplate the equilibrium between
invasiveness, durability, and long-term outcomes. Consequently, the involvement of patients in the
decision-making process and the provision of comprehensive information regarding treatment alternatives
assume paramount importance [33].
The recurrence of varicose veins after treatment is common, so additional interventional treatment is often
necessary. Patients commonly receive multiple interventional modalities within the same treatment session,
such as combining EVTA with phlebectomy, or over several sessions, like using laser ablation followed by
sclerotherapy for tributary or perforator veins. Relatively high rates of additional interventional treatments
have been observed, particularly for EVTA methods like laser ablation or RFA, especially in the short term
(52.4% and 40.0%, respectively). Over the course of one year, cumulative rates of additional treatments are
notably higher for EVTA techniques compared to reported recurrence rates associated with RFA, laser
ablation, and sclerotherapy [34].
Safety and complications
Endovenous techniques and sclerotherapy represent widely employed interventions for managing varicose
veins. However, it is imperative to acknowledge that these therapeutic modalities are not devoid of potential
complications and adverse effects. EVLA, a valuable option for treating varicose veins, may entail minor
complications. Notably, 42.1% of patients undergoing this procedure have reported experiencing erythema
or ecchymosis along the path of the long saphenous vein, while 31.6% have complained of induration. Some
individuals have also reported paresthesia, limb swelling, and superficial burns. However, significant
complications such as DVT and pulmonary embolism (PE) have been infrequent in these cases [35]. In
contrast, another study has indicated that EVLA presents a significantly lower incidence of paresthesia
compared to RFA and high ligation/stripping, hinting at a potentially more comfortable postoperative
experience for patients undergoing EVLA. Nonetheless, thermal skin burns have been observed with
comparable frequency in both RFA and EVLA procedures [36].
Although generally efficacious, foam sclerotherapy is associated with a spectrum of potential complications.
Notably, anaphylactic/anaphylactoid reactions, albeit exceedingly rare, are recognized as substantial
complications necessitating immediate intervention [37]. In addition, though infrequent, extensive tissue
necrosis can arise due to inadvertent intra-arterial injection [38]. Skin necrosis represents another
uncommon complication, which can emanate from the injection of high-concentration sclerosant or, in rare
instances, from the inadvertent intravascular injection of low-concentration sclerosant [39]. Furthermore,
foam sclerotherapy has been associated with the potential for transient migraine-like symptoms, with a
higher reported frequency compared to liquid sclerotherapy. These symptoms resemble a migraine with aura
rather than transient ischemic cerebrovascular events.
More severe complications following sclerotherapy have been documented in rare instances, including
stroke and transient ischemic attack (TIA). These events typically manifest after a time interval and are
linked to paradoxical thromboembolism. While very rare, instances of DVT and PE have also been reported
following sclerotherapy, with the occurrence of DVT being less than 1%. Most DVT cases are asymptomatic
and typically detected during follow-up examinations employing duplex ultrasound. Additionally,
superficial vein thrombosis, occurring in up to 45.8% of cases, represents another reported complication,
although it is predominantly of minor consequence [23].
It is essential to recognize that damage to motor nerves represents an exceedingly low-incidence
complication subsequent to sclerotherapy, with an incidence lower than that associated with alternative
varicose vein treatment methods [40]. Furthermore, transient general or local reactions may ensue,
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encompassing symptoms such as chest tightness, vasovagal syncope, nausea, metallic taste, intravascular
clot, hematoma, ecchymosis at the injection site, pain at the injection site, local swelling, induration, wheals,
blistering, and erythema [23].
Patient satisfaction and quality of life
Varicose veins are a common health issue, primarily affecting adults and often causing a range of
uncomfortable symptoms, including pain, swelling, itching, cramps, and a feeling of heaviness. These
symptoms not only hinder daily activities but also negatively impact the overall quality of life for those
affected. Various factors like age, gender, pregnancy, and lifestyle choices have been recognized as factors
that can influence the development and severity of this condition [41]. As a result, the importance of
assessing and improving the quality of life (QoL) in individuals with varicose veins has become increasingly
emphasized, especially in the context of surgical treatments [42].
Numerous investigations have scrutinized the impact of minimally invasive interventions on the QoL of
patients both before and after the procedures, consistently reporting notable enhancements. Patients
frequently exhibit a reduction in varicose vein-related symptoms following these interventions, leading to
an augmentation of their overall QoL [41]. These findings are congruent with extant literature underscoring
the compromised QoL experienced by individuals afflicted with primary and recurrent varicose veins [42].
Moreover, it has been observed that most varicose vein patients encounter difficulties in the execution of
their daily activities, often accompanied by deleterious psychological ramifications [43].
Within a specific study under consideration, patients exhibited a significant diminution of symptoms and an
augmentation of QoL one month following the minimally invasive procedure. Furthermore, more than half
of these patients were able to resume their customary daily routines within the same timeframe, mirroring
outcomes from prior research endeavors. Notably, the extant body of literature suggests that minimally
invasive interventions not only alleviate symptoms but also contribute to sustained improvements in the
QoL of these patients over the long term [41]. Nurses are pivotal in identifying patients at risk by diagnosing
symptoms that impact QoL and facilitating early intervention. Their active involvement in the care and
management of varicose vein patients is crucial in ameliorating overall well-being [44].
In an investigation focusing on UGFS, the principal finding underscores that UGFS engenders a significant
amelioration of lower limb symptoms, cosmetic appearance, lifestyle, and interpersonal relationships in the
majority of patients. Many patients harbored expectations that their treatment would alleviate lower limb
symptoms, and UGFS not only met but frequently exceeded these expectations. Concerning cosmetic
enhancements, a noteworthy cohort of patients anticipated an improved leg appearance, and UGFS
effectively realized these cosmetic objectives. These favorable physical and cosmetic outcomes translated
into an array of lifestyle benefits, including the capacity to don diverse clothing, enhanced work
performance, and the ability to partake in more gratifying social and leisure activities for those who desired
such pursuits. Collectively, UGFS emerged as an efficacious modality for enhancing the QoL of individuals
grappling with varicose veins, rendering it a valuable therapeutic option [45].
Future directions and research
Ensuring long-term effectiveness is a primary objective in all varicose vein treatments. The likelihood of
recurrence remains high, as many individuals have a predisposition to develop additional varicose veins
even following comprehensive treatment [46]. Recent progress in varicose vein treatment has enhanced
safety, effectiveness, comfort, efficiency, and the ability to achieve long-term success [47]. Dermatologists
have been instrumental in advancing and introducing new, noninvasive technologies that are employed in
the treatment of both cosmetic telangiectasias and more medically significant, larger varicose veins [48].
In recent years, there has been a significant paradigm shift in treating varicose veins, characterized by the
emergence of novel technologies that offer enhanced patient experiences and improved clinical outcomes.
Traditional approaches such as vein stripping have given way to a new era of minimally invasive techniques,
ushering in remarkable advancements in patient care. One noteworthy innovation is the widespread
adoption of EVTA. Typically, this procedure is carried out using either EVLA or RFA. However, alternative
methods for EVTA also exist, including steam vein sclerosis (SVS) and EMWA. Non-thermal catheter-based
techniques have also gained prominence, notably MOCA and cyanoacrylate glue (CAG). These modalities are
often conducted on an outpatient basis under local anesthesia, allowing patients to promptly return home
with minimal risk of complications, including DVT. These techniques are particularly advantageous when
veins are closely juxtaposed with nerves, mitigating concerns about thermal-related damage [4]. High-
intensity focused ultrasound (HIFU) stands out as an innovative technology for managing incompetent N2
truncal veins and incompetent perforating veins (IPVs). HIFU leverages precise, non-invasive ultrasound
energy to ablate targeted tissue, exemplified by the SONOVEIN® machine (Theraclion, Malakoff, France).
This breakthrough underscores the potential of non-thermal approaches in varicose vein treatment, offering
patients a precise and comfortable alternative [49]. Furthermore, some practitioners have explored
pioneering hemodynamic approaches such as conservative and hemodynamic treatment of ambulatory
venous insufficiency (CHIVA) and ambulatory selective varices ablation under local anesthesia (ASVAL).
While these methods may not be universally adopted across all regions, they exhibit promise in delivering
2024 Fayyaz et al. Cureus 16(1): e51990. DOI 10.7759/cureus.51990 6 of 9
effective solutions for varicose veins by addressing venous insufficiency and blood reflux [50,51]. As ongoing
research continues to assess their long-term outcomes, these innovative modalities are poised to reshape
the landscape of varicose vein management, offering patients a brighter future with enhanced treatment
options and improved QoL [47].
Conclusions
Varicose veins, a prevalent manifestation of chronic venous disease, affect a significant portion of the global
population. These enlarged and twisted veins, beyond their cosmetic implications, serve as indicators of
underlying venous insufficiency, a condition characterized by compromised blood flow due to faulty vein
valves. While some individuals remain asymptomatic, others experience discomfort such as pain, itching,
and throbbing. If left untreated, chronic venous insufficiency can progress to more severe stages, leading to
complications like edema, skin changes, ulcers, and bleeding. Recent advancements in treatment have
enhanced safety, effectiveness, and long-term success.
Dermatologists have played a pivotal role in developing noninvasive technologies for managing both
cosmetic and medically significant varicose veins. Treatment options encompass conservative measures and
minimally invasive interventions. EVTA techniques like EVLA and RFA have largely replaced surgery due to
superior outcomes and fewer complications. UGFS is a valuable second-line treatment, particularly for
smaller veins. Ongoing research explores genetics, venous tissue engineering, and stem cell therapy for
potential future treatments.
Additional Information
Author Contributions
All authors have reviewed the final version to be published and agreed to be accountable for all aspects of the
work.
Acquisition, analysis, or interpretation of data: Muhayya Faizullah, Muhammad Abdullah, Hareem Arif,
Sophia B. Bellegarde, Omar A. Daher , Pakeezah Bisharat, Rashed A. Alsubari, Danyal Bakht, Hanen Batat
Drafting of the manuscript: Muhayya Faizullah, Viralkumar Vaghani, Muhammad Abdullah, Sophia B.
Bellegarde, Omar A. Daher , Pakeezah Bisharat, Danyal Bakht, Hanen Batat
Concept and design: Faris Fayyaz, Viralkumar Vaghani, Chukwuyem Ekhator
Critical review of the manuscript for important intellectual content: Faris Fayyaz, Hareem Arif,
Chukwuyem Ekhator , Rashed A. Alsubari
Disclosures
Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the
following: Payment/services info: All authors have declared that no financial support was received from
any organization for the submitted work. Financial relationships: All authors have declared that they have
no financial relationships at present or within the previous three years with any organizations that might
have an interest in the submitted work. Other relationships: All authors have declared that there are no
other relationships or activities that could appear to have influenced the submitted work.
References
1. de Ávila Oliveira R, Riera R, Vasconcelos V, Baptista-Silva JC: Injection sclerotherapy for varicose veins .
Cochrane Database Syst Rev. 2021, 12:CD001732. 10.1002/14651858.CD001732.pub3
2. Nonthermal endovenous procedures for varicose veins: a health technology assessment . Ont Health Technol
Assess Ser. 2021, 21:1-188.
3. Piazza G: Varicose veins . Circulation. 2014, 130:582-7. 10.1161/CIRCULATIONAHA.113.008331
4. Whiteley MS: Current best practice in the management of varicose veins . Clin Cosmet Investig Dermatol.
2022, 15:567-83. 10.2147/CCID.S294990
5. Beebe-Dimmer JL, Pfeifer JR, Engle JS, Schottenfeld D: The epidemiology of chronic venous insufficiency
and varicose veins. Ann Epidemiol. 2005, 15:175-84. 10.1016/j.annepidem.2004.05.015
6. Fukaya E, Flores AM, Lindholm D, Gustafsson S, Zanetti D, Ingelsson E, Leeper NJ: Clinical and genetic
determinants of varicose veins. Circulation. 2018, 138:2869-80. 10.1161/CIRCULATIONAHA.118.035584
7. Raetz J, Wilson M, Collins K: Varicose veins: diagnosis and treatment. Am Fam Physician. 2019, 99:682-8.
8. Nael R, Rathbun S: Treatment of varicose veins . Curr Treat Options Cardiovasc Med. 2009, 11:91-103.
10.1007/s11936-009-0010-z
9. Caggiati A, Bergan JJ, Gloviczki P, Eklof B, Allegra C, Partsch H: Nomenclature of the veins of the lower
limb: extensions, refinements, and clinical application. J Vasc Surg. 2005, 41:719-24.
10.1016/j.jvs.2005.01.018
10. Bradbury AW: Pathophysiology and principles of management of varicose veins . Mechanisms of Vascular
Disease: A Reference Book for Vascular Specialists [Internet]. Fitridge R, Thompson M (ed): University of
Adelaide Press, Adelaide (AU); 2011.
2024 Fayyaz et al. Cureus 16(1): e51990. DOI 10.7759/cureus.51990 7 of 9
11. Xiao Y, Huang Z, Yin H, Lin Y, Wang S: In vitro differences between smooth muscle cells derived from
varicose veins and normal veins. J Vasc Surg. 2009, 50:1149-54. 10.1016/j.jvs.2009.06.048
12. Suzuki M, Unno N, Yamamoto N, et al.: Impaired lymphatic function recovered after great saphenous vein
stripping in patients with varicose vein: venodynamic and lymphodynamic results. J Vasc Surg. 2009,
50:1085-91. 10.1016/j.jvs.2009.06.003
13. Meissner MH: Lower extremity venous anatomy . Semin Intervent Radiol. 2005, 22:147-56. 10.1055/s-2005-
921948
14. Lowell RC, Gloviczki P, Miller VM: In vitro evaluation of endothelial and smooth muscle function of primary
varicose veins. J Vasc Surg. 1992, 16:679-86.
15. Hanrahan LM, Araki CT, Rodriguez AA, Kechejian GJ, LaMorte WW, Menzoian JO: Distribution of valvular
incompetence in patients with venous stasis ulceration. J Vasc Surg. 1991, 13:805-11.
16. Gao RD, Qian SY, Wang HH, Liu YS, Ren SY: Strategies and challenges in treatment of varicose veins and
venous insufficiency. World J Clin Cases. 2022, 10:5946-56. 10.12998/wjcc.v10.i18.5946
17. Pavei P, Spreafico G, Bernardi E, Giraldi E, Ferrini M: Favorable long-term results of endovenous laser
ablation of great and small saphenous vein incompetence with a 1470-nm laser and radial fiber. J Vasc Surg
Venous Lymphat Disord. 2021, 9:352-60. 10.1016/j.jvsv.2020.06.015
18. Arslan Ü, Çalık E, Tort M, et al.: More successful results with less energy in endovenous laser ablation
treatment: long-term comparison of bare-tip fiber 980 nm laser and radial-tip fiber 1470 nm laser
application. Ann Vasc Surg. 2017, 45:166-72. 10.1016/j.avsg.2017.06.042
19. Malskat WS, Engels LK, Hollestein LM, Nijsten T, van den Bos RR: Commonly used endovenous laser
ablation (EVLA) parameters do not influence efficacy: results of a systematic review and meta-analysis. Eur
J Vasc Endovasc Surg. 2019, 58:230-42. 10.1016/j.ejvs.2018.10.036
20. van Eekeren RR, Boersma D, Holewijn S, Vahl A, de Vries JP, Zeebregts CJ, Reijnen MM: Mechanochemical
endovenous ablation versus radiofrequency ablation in the treatment of primary great saphenous vein
incompetence (MARADONA): study protocol for a randomized controlled trial. Trials. 2014, 15:121.
10.1186/1745-6215-15-121
21. He G, Zheng C, Yu MA, Zhang H: Comparison of ultrasound-guided endovenous laser ablation and
radiofrequency for the varicose veins treatment: an updated meta-analysis. Int J Surg. 2017, 39:267-75.
10.1016/j.ijsu.2017.01.080
22. Rabe E, Breu FX, Cavezzi A, et al.: European guidelines for sclerotherapy in chronic venous disorders .
Phlebology. 2014, 29:338-54. 10.1177/0268355513483280
23. Rabe E, Breu FX, Flessenkämper I, et al.: Sclerotherapy in the treatment of varicose veins : S2k guideline of
the Deutsche Gesellschaft für Phlebologie (DGP) in cooperation with the following societies: DDG, DGA,
DGG, BVP. Hautarzt. 2021, 72:23-36. 10.1007/s00105-020-04705-0
24. Connor DE, Cooley-Andrade O, Goh WX, Ma DD, Parsi K: Detergent sclerosants are deactivated and
consumed by circulating blood cells. Eur J Vasc Endovasc Surg. 2015, 49:426-31. 10.1016/j.ejvs.2014.12.029
25. Seyam OA, Elshimy AS, Niazi GE, ElGhareeb M: Ultrasound-guided percutaneous injection of foam
sclerotherapy in management of lower limb varicose veins (pilot study) . Egypt J Radiol Nucl Med. 2020,
51:175. 10.1186/s43055-020-00264-5
26. Subramonia S, Lees TA: The treatment of varicose veins . Ann R Coll Surg Engl. 2007, 89:96-100.
10.1308/003588407X168271
27. Lorenz MB, Gkogkolou P, Goerge T: Sclerotherapy of varicose veins in dermatology . J Dtsch Dermatol Ges.
2014, 12:391-3. 10.1111/ddg.12333
28. Frullini A, Cavezzi A: Sclerosing foam in the treatment of varicose veins and telangiectases: history and
analysis of safety and complications. Dermatol Surg. 2002, 28:11-5. 10.1046/j.1524-4725.2002.01182.x
29. Whing J, Nandhra S, Nesbitt C, Stansby G: Interventions for great saphenous vein incompetence . Cochrane
Database Syst Rev. 2021, 8:CD005624. 10.1002/14651858.CD005624.pub4
30. Brittenden J, Cotton SC, Elders A, et al.: Clinical effectiveness and cost-effectiveness of foam sclerotherapy,
endovenous laser ablation and surgery for varicose veins: results from the comparison of laser, surgery and
foam sclerotherapy (CLASS) randomised controlled trial. Health Technol Assess. 2015, 19:1-342.
10.3310/hta19270
31. Rasmussen LH, Lawaetz M, Bjoern L, Vennits B, Blemings A, Eklof B: Randomized clinical trial comparing
endovenous laser ablation, radiofrequency ablation, foam sclerotherapy and surgical stripping for great
saphenous varicose veins. Br J Surg. 2011, 98:1079-87. 10.1002/bjs.7555
32. Gohel MS, Epstein DM, Davies AH: Cost-effectiveness of traditional and endovenous treatments for
varicose veins. Br J Surg. 2010, 97:1815-23. 10.1002/bjs.7256
33. Campbell B, Chinai N, Hollering P, Wright H, McCarthy R: Factors influencing the choice of treatment
modality for individual patients with varicose veins. Ann R Coll Surg Engl. 2017, 99:624-30.
10.1308/rcsann.2017.0122
34. Mallick R, Raju A, Campbell C, Carlton R, Wright D, Boswell K, Eaddy M: Treatment patterns and outcomes
in patients with varicose veins. Am Health Drug Benefits. 2016, 9:455-65.
35. Chapagain D, Shrestha KP, Thapa Magar D, Shrestha KB, Yadav PK: Recurrence of varicose vein after
endovenous laser therapy in a tertiary care center: a descriptive cross-sectional study. JNMA J Nepal Med
Assoc. 2021, 59:267-70. 10.31729/jnma.6163
36. Dermody M, O'Donnell TF, Balk EM: Complications of endovenous ablation in randomized controlled trials .
J Vasc Surg Venous Lymphat Disord. 2013, 1:427-36.e1. 10.1016/j.jvsv.2013.04.007
37. Cavezzi A, Parsi K: Complications of foam sclerotherapy . Phlebology. 2012, 27 Suppl 1:46-51.
10.1258/phleb.2012.012s09
38. Parsi K, Hannaford P: Intra-arterial injection of sclerosants: Report of three cases treated with systemic
steroids. Phlebology. 2016, 31:241-50. 10.1177/0268355515578988
39. Goldman MP, Sadick NS, Weiss RA: Cutaneous necrosis, telangiectatic matting, and hyperpigmentation
following sclerotherapy. Etiology, prevention, and treatment. Dermatol Surg. 1995, 21:19-29; quiz 31-2.
10.1111/j.1524-4725.1995.tb00107.x
40. Zipper SG: Peroneal nerve damage after varicose vein sclerotherapy with ethoxysclerol. Single case
2024 Fayyaz et al. Cureus 16(1): e51990. DOI 10.7759/cureus.51990 8 of 9
description with malpractice relevant questions [Article in German]. Versicherungsmedizin. 2000, 52:185-7.
41. Tuncer Çoban P, Dirimeşe E: Evaluation of quality of life after minimally invasive varicose vein treatment .
Turk Gogus Kalp Damar Cerrahisi Derg. 2019, 27:49-56. 10.5606/tgkdc.dergisi.2019.16867
42. Beresford T, Smith JJ, Brown L, Greenhalgh RM, Davies AH: A comparison of health-related quality of life of
patients with primary and recurrent varicose veins. Phlebology. 2003, 18:35-7.
10.1258/026835503321236885
43. Mallick R, Lal BK, Daugherty C: Relationship between patient-reported symptoms, limitations in daily
activities, and psychological impact in varicose veins. J Vasc Surg Venous Lymphat Disord. 2017, 5:224-37.
10.1016/j.jvsv.2016.11.004
44. Kelechi T, Bonham PA: Lower extremity venous disorders: implications for nursing practice . J Cardiovasc
Nurs. 2008, 23:132-43. 10.1097/01.JCN.0000305070.64860.87
45. Darvall KA, Bate GR, Sam RC, Adam DJ, Silverman SH, Bradbury AW: Patients' expectations before and
satisfaction after ultrasound guided foam sclerotherapy for varicose veins. Eur J Vasc Endovasc Surg. 2009,
38:642-7. 10.1016/j.ejvs.2009.07.014
46. Campbell B: New evidence on treatments for varicose veins . Br J Surg. 2014, 101:1037-9. 10.1002/bjs.9612
47. Sadick NS: Advances in the treatment of varicose veins: ambulatory phlebectomy, foam sclerotherapy,
endovascular laser, and radiofrequency closure. Dermatol Clin. 2005, 23:443-55, vi.
10.1016/j.det.2005.03.005
48. Sadick NS: Advances in the treatment of varicose veins: ambulatory phlebectomy, foam sclerotherapy,
endovascular laser, and radiofrequency closure. Adv Dermatol. 2006, 22:139-56. 10.1016/j.yadr.2006.09.001
49. Whiteley MS: High intensity focused ultrasound (HIFU) for the treatment of varicose veins and venous leg
ulcers - a new non-invasive procedure and a potentially disruptive technology. Curr Med Res Opin. 2020,
36:509-12. 10.1080/03007995.2019.1699518
50. Franceschi C: The conservative and hemodynamic treatment of ambulatory venous insufficiency [Article in
French]. Phlebologie. 1989, 42:567-8.
51. Pittaluga P, Chastanet S: Treatment of varicose veins by ASVAL: results at 10 years . Ann Vasc Surg. 2017,
38:10. 10.1016/j.avsg.2016.07.021
2024 Fayyaz et al. Cureus 16(1): e51990. DOI 10.7759/cureus.51990 9 of 9
... Treatments have come a long way; now it has everything from simple compression therapy to more invasive options that showing their efficiency and the promise of shorter recovery than traditional surgery 5 . In fact, research shows that invasive procedure result in high occlusion rates and noticeably boost patient well-being 13 . ...
... Then, almost suddenly, minimally invasive techniques burst onto the scene. By the early 2000s, procedures such as endovenous thermal ablation-using heat to close off problematic veins-started to shine because of their effectiveness and shorter recovery periods 5 . In many studies, these methods are praised for their safety and reliable outcomes 3,8 , and improvements in ultrasound technology have quietly refined how doctors pinpoint the problem areas. ...
... On one side, quantitative methods like randomized controlled trials compare techniques such as endovenous laser ablation and sclerotherapy. These studies often show that both methods lead to similar improvements in symptoms and quality of life 5,13 . On the flip side, qualitative research delves into personal experiences: patients frequently prefer minimally invasive techniques because they tend to be less uncomfortable and allow for quicker recovery, as highlighted by reports that weigh patient feedback and clinical results 3,8 . ...
Research
Full-text available
Varicose veins (varices) are a prevalent vascular condition that affects a significant proportion of the global population, particularly among women and individuals with risk factors such as age, genetics, prolonged standing, and obesity. The condition is not merely cosmetic but can lead to chronic discomfort, pain, and reduced quality of life. Over the years, the management of varices has evolved significantly, transitioning from conservative approaches such as compression therapy and lifestyle modifications to more advanced, minimally invasive procedures. This literature review synthesizes the latest research on varicose vein treatments, including endovenous thermal ablation (EVTA), sclerotherapy, mechanochemical ablation (MOCA), and cyanoacrylate glue closure. These techniques have gained prominence due to their high efficacy, lower recurrence rates, and reduced recovery periods 5 compared to traditional surgical interventions like vein stripping. However, while minimally invasive procedures demonstrate promising outcomes, challenges remain in standardizing treatment protocols across different populations and ensuring long-term patient adherence. Additionally, the psychological impact of varicose veins and patient-reported outcomes are aspects that require further investigation to optimize treatment strategies. Despite advancements in therapeutic techniques, gaps persist in large-scale, multicenter studies evaluating long-term effectiveness and recurrence rates. Future research should focus on improving diagnostic precision, refining treatment methodologies, and exploring novel interventions that balance clinical efficacy with patient-centered care. By bridging these research gaps, healthcare providers can enhance the overall management of varicose veins, ensuring better patient outcomes and quality of life.
... Такі переваги дозволяють досягнути більшого комфорту для пацієнта в післяопераційному періоді й зменшити період відновлення після оперативного втручання. Також це дозволяє зменшити кількість таких ускладнень, як опіки, парестезії, гематоми, що значно частіше можуть виникати при лікуванні варикозної хвороби із використанням термальних методик лікування [2,5,10,11]. ...
... Нетермальні методики лікування досить позитивно зарекомендували себе в хірургічній практиці та демонструють позитивні резуль-тати у лікуванні варикозного розширення підшкірних вен нижніх кінцівок. Ці методики можна поділити ще на дві підгрупи: клейові методики, при виконанні яких зараз використовують спеціально розроблений біологічний клей (н-бутил-2-цианоакрилат), що безпосередньо використовується у системі "VenaSeal", а також механохімічні методики (MOCA), де використовується механічне пошкодження стінки вени з одночасним введенням спеціального склерозанту (полідоканол) у формі рідини, такий принцип задіяний у системі "Flebogrif" [2,3,4,5,6,10,11,12]. Ці методики, після їх використання, дозволяють закрити просвіт великої підшкірної вени, що в свою чергу призводить до припинення кровотоку в ній та зменшення її діаметру. ...
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Full-text available
Annotation. The article presents the results of a prospective analysis of the data obtained by determining the change in the diameter of the great saphenous vein on the lower extremities in patients with varicose veins of the lower extremities who were operated on using non-thermal techniques. The present study highlights two non-thermal techniques that were used, namely: “Flebogrif” and “VenaSeal”. Also, the difference in the diameter of the great saphenous vein at different treatment periods was analyzed: before surgery, 2 weeks, 1 month, 3 months, 6 months and 12 months after surgery. To determin`e the diameter of the great saphenous vein, an ultrasound method was used. The data we obtained were processed using the Microsoft Office for Windows office suite for working with various types of data. The data obtained as a result of statistical processing indicate that both techniques are effective in the surgical treatment of patients suffering from varicose veins of the lower extremities. Both techniques, in both groups, demonstrated a positive effect of reducing the diameter of the great saphenous vein in the postoperative period, at each of the control stages. The data obtained allow us to better understand the effectiveness of the use of non-thermal treatment methods in patients suffering from varicose veins of the lower extremities.
... Non-surgical types of treatment require a longer duration of treatment, which has repercussions on the high costs of this type of treatment (5,6). Unfortunately, the evolution of diagnostic tools has not influenced the percentage of patients who reach a stage that requires surgical intervention (7). ...
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Objective Varicose vein ablation is generally indicated in patients with active/healed venous ulcers. However, patient selection for intervention in individuals without venous ulcers is less clear. Tools that predict lack of clinical improvement (LCI) after vein ablation may help guide clinical decision-making but remain limited. We developed machine learning (ML) algorithms that predict 1-year LCI after varicose vein ablation. Methods The Vascular Quality Initiative database was used to identify patients who underwent endovenous or surgical varicose vein treatment for Clinical-Etiological-Anatomical-Pathophysiological (CEAP) C2 to C4 disease between 2014 and 2024. We identified 226 predictive features (111 preoperative [demographic/clinical], 100 intraoperative [procedural], and 15 postoperative [immediate postoperative course/complications]). The primary outcome was 1-year LCI, defined as a preoperative Venous Clinical Severity Score (VCSS) minus postoperative VCSS of ≤0, indicating no clinical improvement after vein ablation. The data were divided into training (70%) and test (30%) sets. Six ML models were trained using preoperative features with 10-fold cross-validation (Extreme Gradient Boosting [XGBoost], random forest, Naïve Bayes classifier, support vector machine, artificial neural network, and logistic regression). The primary model evaluation metric was area under the receiver operating characteristic curve (AUROC). The algorithm with the best performance was further trained using intraoperative and postoperative features. The focus was on preoperative features, whereas intraoperative and postoperative features were of secondary importance, because preoperative predictions offer the most potential to mitigate risk, such as deciding whether to proceed with intervention. Model calibration was assessed using calibration plots, and the accuracy of probabilistic predictions was evaluated with Brier scores. Performance was evaluated across subgroups based on age, sex, race, ethnicity, rurality, median Area Deprivation Index, prior ipsilateral varicose vein ablation, location of primary vein treated, and treatment type. Results Overall, 33,924 patients underwent varicose vein treatment (30,602 endovenous [90.2%] and 3322 surgical [9.8%]) during the study period and 5619 (16.6%) experienced 1-year LCI. Patients who developed the primary outcome were older, more likely to be socioeconomically disadvantaged, and less likely to use compression therapy routinely. They also had less severe disease as characterized by lower preoperative VCSS, Varicose Vein Symptom Questionnaire scores, and CEAP classifications. The best preoperative prediction model was XGBoost, achieving an AUROC of 0.94 (95% confidence interval [CI], 0.93-0.95). In comparison, logistic regression had an AUROC of 0.71 (95% CI, 0.70-0.73). The XGBoost model had marginally improved performance at the intraoperative and postoperative stages, both achieving an AUROC of 0.97 (95% CI, 0.96-0.98). Calibration plots showed good agreement between predicted and observed event probabilities with Brier scores of 0.12 (preoperative), 0.11 (intraoperative), and 0.10 (postoperative). Of the top 10 predictors, 7 were preoperative features including VCSS, Varicose Vein Symptom Questionnaire score, CEAP classification, prior varicose vein ablation, thrombus in the greater saphenous vein, and reflux in the deep veins. Model performance remained robust across all subgroups. Conclusions We developed ML models that can accurately predict outcomes after endovenous and surgical varicose vein treatment for CEAP C2 to C4 disease, performing better than logistic regression. These algorithms have potential for important utility in guiding patient counseling and perioperative risk mitigation strategies to prevent LCI after varicose vein ablation.
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Full-text available
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This article outlines the current best practice in the management of varicose veins. “Varicose veins” traditionally means bulging veins, usually seen on the legs, when standing. It is now a general term used to describe these bulging veins, and also underlying incompetent veins that reflux and cause the surface varicose veins. Importantly, “varicose veins” is often used for superficial venous reflux even in the absence of visible bulging veins. These can be simply called “hidden varicose veins”. Varicose veins usually deteriorate, progressing to discomfort, swollen ankles, skin damage, leg ulcers, superficial venous thrombosis and venous bleeds. Patients with varicose veins and symptoms or signs have a significant advantage in having treatment over conservative treatment with compression stockings or venotropic drugs. Small varicose veins or telangiectasia without symptoms or signs can be treated for cosmetic reasons. However, most have underlying venous reflux from saphenous, perforator or local “feeding veins” and so investigation with venous duplex should be mandatory before treatment. Best practice for investigating leg varicose veins is venous duplex ultrasound in the erect position, performed by a specialist trained in ultrasonography optimally not the doctor who performs the treatment. Pelvic vein reflux is best investigated with transvaginal duplex ultrasound (TVS), performed using the Holdstock-Harrison protocol. In men or women unable to have TVS, venography or cross-sectional imaging is needed. Best practice for treating truncal vein incompetence is endovenous thermal ablation. Increasing evidence suggests that significant incompetent perforating veins should be found and treated by thermal ablation using the transluminal occlusion of perforator (TRLOP) approach, and that incompetent pelvic veins refluxing into symptomatic varicose veins in the genital region or leg should be treated by coil embolisation. Bulging varicosities should be treated by phlebectomy at the time of truncal vein ablation. Monitoring and reporting outcomes is essential for doctors and patients; hence, participation in a venous registry should probably be mandatory.
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Introduction: Varicosity is the common problem of various etiology having simple limb aching to worst complications like oedema, ulcer, and skin changes. Minimal invasive endovenous laser therapy is a noble procedure. The aim of the study is to find out the recurrence of the varicose vein after laser therapy in a tertiary care center. Methods: This descriptive cross-sectional study was done in 38 patients with varicosity of the lower limb in a tertiary care hospital, from January 2019 to June 2019 after taking ethical clearance from Institutional Review Committee. Convenience sampling was done. Data was collected and entry was done in Statistical Package for the Social Science software version 22, point estimate at 90% Confidence Interval was calculated along with frequency and proportion for binary data. Results: We recorded 38 patients with ablated limb out of which none of the ablated veins showed recanalization in six months follow up. Twenty two (58%) patients were male and 16 (42%) patients were female with a mean age of 40.26 years. Major bulk, 23 (60.5%) resumed activity in second postoperative day and only 1 (2.6%) patient waited for 5 days for normal activity with mean of 2.58 days postoperatively. Sixteen (42.1%) patients developed erythema or ecchymosis, 12 (31.6%) patients had induration along the long saphenous vein course, 7 (18.4%) patients had paresthesia, 2 (5.3%) patients had limb swelling and 1 (2.6%) patient had skin burn. Conclusions: Endovenous laser ablation has very low rate of recurrence of varicosity and has minor complications.
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Background Minimally invasive procedures; like ultrasound-guided percutaneous injection of foam sclerotherapy (USGFS) are being the keystone methods in managing lower limb varicose veins and its complications, being advantageable over the surgery as being minimally invasive with better postoperative comfort and immediate cosmetic effect and faster return to full socioeconomic activity. Varicose veins are common problem that affects the quality of life and have a significant cost burden on the health care system. Sclerotherapy (endovenous chemical ablation) destructs the endothelium to induce inflammation and fibrosis and then occlusion of the blood vessel lumen. Results The study included 33 diseased limbs of females (64.7%) and 18 (35.3 %) limbs of males. Of the diseased limbs, 16 (31.3%) presented with disfigurement, 14 (27.4%) with pain, 11 (19.6%) with heaviness, 6 (11.7%) with edema, and 4 (7.8%) with non-healed venous ulcer. Twenty-six (50.9%) diseased limbs show competent sapheno-femoral junction (SFJ) while 25 (49.1%) limbs showed SFJ reflux of variant degrees. All patients underwent direct ultrasound-guided foam sclerotherapy either as the primary therapy in 29 (56.9%) limbs or as a complementary therapy for residual perforators and varicosities after treatment with other methods of treatment like laser ablation and phlebograph in 22 (43.1%) limbs. Nine (17.6%) limbs treated with 2% polidocanol (Pol.) and 42 (82.3%) limbs with 3% Pol. In the 2nd session Doppler follow-up, 35 (68.6%) limbs showed complete occlusion while 13 (25.5%) limbs showed partial occlusion, while in the 3rd session Doppler follow-up, 3 (5.9%) limbs still show partial occlusion while 45 (88.2%) limbs showed complete occlusion and no recanalization. Forty (78.4%) limbs addressed marked symptomatic relief while 5 (9.8%) limbs moderate relief and 3 (5.9%) cases with mild relief and the other 3 (5.9%) cases missed follow-up. Twenty-five (49%) limbs had no complications while 23 (45%) limbs had different local complications ranging from pain, hyperpigmentation, and superficial thrombophlebitis. Also, we find a statistically significant correlation between the Pol. concentration injected and the symptomatic relief and Doppler US follow-up while there is a borderline correlation between the Pol. concentration injected and the detected complications. Conclusions The preliminary results revealed ultrasound-guide foam sclerotherapy is an effective and safe treatment for lower limb varicose veins. The concentration of polidocanol injected could be correlated significantly with the symptoms improvement and borderline correlation to the complication rate.
Article
Background: Varicose veins are enlarged and tortuous veins, affecting up to one-third of the world's population. They can be a cause of chronic venous insufficiency, which is characterised by oedema, pigmentation, eczema, lipodermatosclerosis, atrophie blanche, and healed or active venous ulcers. Injection sclerotherapy (liquid or foam) is widely used for treatment of varicose veins aiming to transform the varicose veins into a fibrous cord. However, there is limited evidence regarding its effectiveness and safety, especially in patients with more severe disease. This is the second update of the review first published in 2002. Objectives: To assess the effectiveness and safety of injection sclerotherapy for the treatment of varicose veins. Search methods: For this update, the Cochrane Vascular Information Specialist searched the Cochrane Vascular Specialised Register, CENTRAL, MEDLINE, Embase, AMED, CINAHL, and LILACS databases, and the World Health Organization International Clinical Trials Registry Platform and ClinicalTrials.gov trials registries, on 20 July 2021. Selection criteria: We included all randomised controlled trials (RCTs) (including cluster-randomised trials and first phase cross-over studies) that used injection sclerotherapy for the treatment of varicose veins. Data collection and analysis: Two review authors independently assessed, selected and extracted data. Disagreements were cross-checked by a third review author. We used Cochrane's Risk of bias tool to assess the risk of bias. The outcomes of interest were cosmetic appearance, complications, residual varicose veins, quality of life (QoL), persistence of symptoms, and recurrent varicose veins. We calculated risk ratios (RRs) or mean difference (MD) with 95% confidence intervals (CIs). We used the worst-case-scenario for dichotomous data imputation for intention-to-treat analyses. For continuous outcomes, we used the 'last-observation-carried-forward' for data imputation if there was balanced loss to follow-up. We assessed the certainty of the evidence using the GRADE approach. Main results: We included 23 new RCTs for this update, bringing the total to 28 studies involving 4278 participants. The studies differed in their design, and in which sclerotherapy method, agent or concentration was used. None of the included RCTs compared sclerotherapy to no intervention or to any pharmacological therapy. The certainty of the evidence was downgraded for risk of bias, low number of studies providing information for each outcome, low number of participants, clinical differences between the study participants, and wide CIs. Sclerotherapy versus placebo Foam sclerotherapy may improve cosmetic appearance as measured by IPR-V (independent photography review - visible varicose veins scores) compared to placebo (polidocanol 1%: mean difference (MD) -0.76, 95% CI -0.91 to -0.60; 2 studies, 223 participants; very low-certainty evidence); however, deep vein thrombosis (DVT) rates may be slightly increased in this intervention group (RR 5.10, 95% CI 1.30 to 20.01; 3 studies, 302 participants; very low-certainty evidence). Residual varicose vein rates may be decreased following polidocanol 1% compared to placebo (RR 0.19, 95% CI 0.13 to 0.29; 2 studies, 225 participants; very low-certainty evidence). Following polidocanol 1% use, there may be a possible improvement in QoL as assessed using the VEINES-QOL/Sym questionnaire (MD 12.41, 95% CI 9.56 to 15.26; 3 studies, 299 participants; very low-certainty evidence), and possible improvement in varicose vein symptoms as assessed using the Venous Clinical Severity Score (VCSS) (MD -3.25, 95% CI -3.90 to -2.60; 2 studies, 223 participants; low-certainty evidence). Recurrent varicose veins were not reported for this comparison. Foam sclerotherapy versus foam sclerotherapy with different concentrations Three individual RCTs reported no evidence of a difference in cosmetic appearance after comparing different concentrations of the intervention; data could not be pooled for two of the three studies (RR 1.11, 95% CI 0.84 to 1.47; 1 study, 80 participants; very low-certainty evidence). Similarly, there was no clear difference in rates of thromboembolic complications when comparing one foam concentration with another (RR 1.47, 95% CI 0.41 to 5.33; 3 studies, 371 participants; very low-certainty evidence). Three RCTs investigating higher concentrations of polidocanol foam indicated the rate of residual varicose veins may be slightly decreased in the polidocanol 3% foam group compared to 1% (RR 0.67, 95% CI 0.43 to 1.04; 3 studies, 371 participants; moderate-certainty evidence). No clear improvement in QoL was detected. Two RCTs reported improved VCSS scores with increasing concentrations of foam. Persistence of symptoms were not reported for this comparison. There was no clear difference in recurrent varicose vein rates (RR 0.91, 95% CI 0.62 to 1.32; 1 study, 148 participants; low-certainty evidence). Foam sclerotherapy versus liquid sclerotherapy One RCT reported on cosmetic appearance with no evidence of a difference between foam or liquid sclerotherapy (patient satisfaction scale MD 0.2, 95% CI -0.27 to 0.67; 1 study, 126 participants; very low-certainty evidence). None of the RCTs investigated thromboembolic complications, QoL or persistence of symptoms. Six studies individually showed there may be a benefit to polidocanol 3% foam over liquid sclerotherapy in reducing residual varicose vein rate; pooling data from two studies showed a RR of 0.51, with 95% CI 0.41 to 0.65; 203 participants; very low-certainty evidence. One study reported no clear difference in recurrent varicose vein rates when comparing sodium tetradecyl sulphate (STS) foam or liquid (RR 1.10, 95% CI 0.86 to 1.42; 1 study, 286 participants; very low-certainty evidence). Sclerotherapy versus sclerotherapy with different substances Four RCTs compared sclerotherapy versus sclerotherapy with any other substance. We were unable to combine the data due to heterogeneity or assess the certainty of the evidence due to insufficient data. Authors' conclusions: There is a very low to low-certainty evidence that, compared to placebo, sclerotherapy is an effective and safe treatment for varicose veins concerning cosmetic appearance, residual varicose veins, QoL, and persistence of symptoms. Rates of DVT may be slightly increased and there were no data concerning recurrent varicose veins. There was limited or no evidence for one concentration of foam compared to another; foam compared to liquid sclerotherapy; foam compared to any other substance; or one technique compared to another. There is a need for high-quality trials using standardised sclerosant doses, with clearly defined core outcome sets, and measurement time points to increase the certainty of the evidence.
Article
Background: Varicose veins are part of the spectrum of chronic venous disease and are a sign of underlying chronic venous insufficiency. Treatments to address varicose veins include surgical vein removal under general anesthesia, or endovenous laser (EVLA) or radiofrequency ablation (RFA) under tumescent anesthesia. Two newer nonthermal endovenous procedures can close veins without any tumescent anesthesia, using either mechanochemical ablation (MOCA, a combination of mechanical and chemical techniques) or cyanoacrylate adhesive closure (CAC). We conducted a health technology assessment of these nonthermal endovenous procedures for people with symptomatic varicose veins, which included an evaluation of effectiveness, safety, cost-effectiveness, the budget impact of publicly funding MOCA and CAC, and patient preferences and values. Methods: We performed a systematic literature search of the clinical evidence. We assessed the risk of bias of each included study using the Cochrane Risk of Bias or RoBANS tool, and the quality of the body of evidence according to the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) Working Group criteria. Meta-analysis was conducted using Review Manager 5.2, where appropriate.We performed a systematic economic literature search and conducted a cost-utility analysis with a 5-year time horizon from the perspective of Ontario Ministry of Health. In our primary economic evaluation, we assessed the cost-effectiveness of nonthermal endovenous procedures (CAC and MOCA) compared with surgical vein stripping and thermal endovenous therapies (EVLA and RFA). We also analyzed the budget impact of publicly funding nonthermal and thermal endovenous therapies for adults with symptomatic varicose veins in Ontario over the next 5 years. Costs are expressed in 2020 Canadian dollars.To contextualize the potential value of nonthermal endovenous treatments, we spoke with 13 people with varicose veins who had sought various treatment options. We conducted phone interviews and qualitatively analyzed their responses regarding their care journey and the impact of different treatment options; the only nonthermal treatment that participants had experience with was CAC. Results: We included 19 primary studies reported in 25 publications comparing either MOCA or CAC with at least one other invasive treatment for symptomatic varicose veins. No studies compared MOCA with CAC. Based on evidence of low to moderate quality, MOCA resulted in slightly poorer technical outcomes (vein closure and recanalization) than thermal endovenous ablation procedures. However, clinical outcomes, quality of life improvement, and patient satisfaction were similar compared with RFA (GRADE: Very low to Moderate) and EVLA (GRADE: High). Cyanoacrylate adhesive closure resulted in little to no difference in technical outcomes, clinical outcomes, and quality of life improvement compared with RFA and EVLA (GRADE: Moderate). Patient satisfaction may also be similar (GRADE: Low). Recovery time was slightly reduced with nonthermal endovenous procedures compared with thermal ablation (GRADE: Moderate). The effect of CAC compared with surgical vein stripping is very uncertain (GRADE: Very low). Major complications of any procedure were rare, with minor complications occurring as expected and resolving.We included two European studies in the economic evidence review that were partially applicable to the Ontario context. Both studies found that thermal ablation procedures (RFA, EVLA, or steam vein sclerosis) were the most cost-effective treatments, compared with surgical vein stripping and nonthermal therapies. Our cost-utility analysis showed that surgical vein stripping is the least effective and most costly treatment among five treatments for varicose veins. Differences in quality-adjusted life-years (QALYs) between endovenous treatments (CAC, MOCA, RFA, and EVLA) were small. When the willingness-to-pay (WTP) value was 50,000perQALYgained,theprobabilitiesofbeingcosteffectivewere55.650,000 per QALY gained, the probabilities of being cost-effective were 55.6%, 18.8%, 15.6%, 10.0%, and 0%, for EVLA, CAC, MOCA, RFA, and surgical vein stripping, respectively. When the WTP was 100,000 per QALY gained, the probabilities of being cost-effective were 40.2%, 30.0%, 17.7%, 12.1%, and 0%, for EVLA, CAC, RFA, MOCA, and surgical vein stripping, respectively. Publicly funding endovenous procedures (both nonthermal and thermal) would increase the total volume of treatments, resulting in a total 5-year budget impact of around 17million.PeoplewithvaricoseveinswithwhomwespokereportedpositivelyontheirexperienceswiththeCACprocedureanditsoutcomes.Theyalsodescribedgeographicandfinancialbarrierstoaccessingtherangeofavailabletreatmentoptions.Conclusions:CyanoacrylateadhesiveclosureandMOCAproducedsimilarpatientimportantoutcomes,andslightlyshorterrecoverycomparedwiththermalablation.Cyanoacrylateadhesiveclosureyieldedsimilaranatomicaloutcomesasthermalendovenousablation,butthetechnicaloutcomesofMOCAwereslightlypoorer.Comparedwithsurgicalveinstripping,allendovenoustreatmentsweremoreeffectiveandlessexpensive.Ifweweretolookatthemostcosteffectivestrategy(atWTPlessthan17 million.People with varicose veins with whom we spoke reported positively on their experiences with the CAC procedure and its outcomes. They also described geographic and financial barriers to accessing the range of available treatment options. Conclusions: Cyanoacrylate adhesive closure and MOCA produced similar patient-important outcomes, and slightly shorter recovery compared with thermal ablation. Cyanoacrylate adhesive closure yielded similar anatomical outcomes as thermal endovenous ablation, but the technical outcomes of MOCA were slightly poorer.Compared with surgical vein stripping, all endovenous treatments were more effective and less expensive. If we were to look at the most cost-effective strategy (at WTP less than 100,000 per QALY), EVLA is most likely to be cost-effective. Assuming an 80% increase in the number of eligible people over the next 5 years, we estimate that publicly funding nonthermal and thermal endovenous treatments for varicose veins in Ontario would range from 2.59millioninyear1to2.59 million in year 1 to 4.35 million in year 5, and that the total 5-year budget impact would be around $17 million.For people with varicose veins, the CAC procedure was seen as a positive treatment method that reduced their symptoms and improved their quality of life.
Article
Background: Great saphenous vein (GSV) incompetence, causing varicose veins and venous insufficiency, makes up the majority of lower-limb superficial venous diseases. Treatment options for GSV incompetence include surgery (also known as high ligation and stripping), laser and radiofrequency ablation, and ultrasound-guided foam sclerotherapy. Newer treatments include cyanoacrylate glue, mechanochemical ablation, and endovenous steam ablation. These techniques avoid the need for a general anaesthetic, and may result in fewer complications and improved quality of life (QoL). These treatments should be compared to inform decisions on treatment for varicosities in the GSV. This is an update of a Cochrane Review first published in 2011. Objectives: To assess the effects of endovenous laser ablation (EVLA), radiofrequency ablation (RFA), endovenous steam ablation (EVSA), ultrasound-guided foam sclerotherapy (UGFS), cyanoacrylate glue, mechanochemical ablation (MOCA) and high ligation and stripping (HL/S) for the treatment of varicosities of the great saphenous vein (GSV). Search methods: The Cochrane Vascular Information Specialist searched the Cochrane Vascular Specialised Register, CENTRAL, MEDLINE, Embase, CINAHL, and AMED databases, and World Health Organization International Clinical Trials Registry Platform and ClinicalTrials.gov trials registers to 2 November 2020. We undertook reference checking to identify additional studies. Selection criteria: We included randomised controlled trials (RCTs) treating participants for varicosities of the GSV using EVLA, RFA, EVSA, UGFS, cyanoacrylate glue, MOCA or HL/S. Key outcomes of interest are technical success, recurrence, complications and QoL. Data collection and analysis: Two review authors independently selected trials, applied Cochrane's risk of bias tool, and extracted data. We calculated odds ratios (ORs) with 95% confidence intervals (CIs) and assessed the certainty of evidence using GRADE. Main results: We identified 11 new RCTs for this update. Therefore, we included 24 RCTs with 5135 participants. Duration of follow-up ranged from five weeks to eight years. Five comparisons included single trials. For comparisons with more than one trial, we could only pool data for 'technical success' and 'recurrence' due to heterogeneity in outcome definitions and time points reported. All trials had some risk of bias concerns. Here we report the clinically most relevant comparisons. EVLA versus RFA Technical success was comparable up to five years (OR 0.98, 95% CI 0.41 to 2.38; 5 studies, 780 participants; moderate-certainty evidence); over five years, there was no evidence of a difference (OR 0.85, 95% CI 0.30 to 2.41; 1 study, 291 participants; low-certainty evidence). One study reported recurrence, showing no clear difference at three years (OR 1.53, 95% CI 0.78 to 2.99; 291 participants; low-certainty evidence), but a benefit for RFA may be seen at five years (OR 2.77, 95% CI 1.52 to 5.06; 291 participants; low-certainty evidence). EVLA versus UGFS Technical success may be better in EVLA participants up to five years (OR 6.13, 95% CI 0.98 to 38.27; 3 studies, 588 participants; low-certainty evidence), and over five years (OR 6.47, 95% CI 2.60 to 16.10; 3 studies, 534 participants; low-certainty evidence). There was no clear difference in recurrence up to three years and at five years (OR 0.68, 95% CI 0.20 to 2.36; 2 studies, 443 participants; and OR 1.08, 95% CI 0.40 to 2.87; 2 studies, 418 participants; very low-certainty evidence, respectively). EVLA versus HL/S Technical success may be better in EVLA participants up to five years (OR 2.31, 95% CI 1.27 to 4.23; 6 studies, 1051 participants; low-certainty evidence). No clear difference in technical success was seen at five years and beyond (OR 0.93, 95% CI 0.57 to 1.50; 5 studies, 874 participants; low-certainty evidence). Recurrence was comparable within three years and at 5 years (OR 0.78, 95% CI 0.47 to 1.29; 7 studies, 1459 participants; and OR 1.09, 95% CI 0.68 to 1.76; 7 studies, 1267 participants; moderate-certainty evidence, respectively). RFA versus MOCA There was no clear difference in technical success (OR 1.76, 95% CI 0.06 to 54.15; 3 studies, 435 participants; low-certainty evidence), or recurrence (OR 1.00, 95% CI 0.21 to 4.81; 3 studies, 389 participants; low-certainty evidence). Long-term data are not available. RFA versus HL/S No clear difference in technical success was detected up to five years (OR 5.71, 95% CI 0.64 to 50.81; 2 studies, 318 participants; low-certainty evidence); over five years, there was no evidence of a difference (OR 0.88, 95% CI 0.29 to 2.69; 1 study, 289 participants; low-certainty evidence). No clear difference in recurrence was detected up to three years (OR 0.93, 95% CI 0.58 to 1.51; 4 studies, 546 participants; moderate-certainty evidence); but a possible long-term benefit for RFA was seen (OR 0.41, 95% CI 0.22 to 0.75; 1 study, 289 participants; low-certainty evidence). UGFS versus HL/S Meta-analysis showed a possible benefit for HL/S compared with UGFS in technical success up to five years (OR 0.32, 95% CI 0.11 to 0.94; 4 studies, 954 participants; low-certainty evidence), and over five years (OR 0.09, 95% CI 0.03 to 0.30; 3 studies, 525 participants; moderate-certainty evidence). No clear difference was detected in recurrence up to three years (OR 1.81, 95% CI 0.87 to 3.77; 3 studies, 822 participants; low-certainty evidence), and after five years (OR 1.24, 95% CI 0.57 to 2.71; 3 studies, 639 participants; low-certainty evidence). Complications were generally low for all interventions, but due to different definitions and time points, we were unable to draw conclusions (very-low certainty evidence). Similarly, most studies evaluated QoL but used different questionnaires at variable time points. Rates of QoL improvement were comparable between interventions at follow-up (moderate-certainty evidence). Authors' conclusions: Our conclusions are limited due to the relatively small number of studies for each comparison and differences in outcome definitions and time points reported. Technical success was comparable between most modalities. EVLA may offer improved technical success compared to UGFS or HL/S. HL/S may have improved technical success compared to UGFS. No evidence of a difference was detected in recurrence, except for a possible long-term benefit for RFA compared to EVLA or HL/S. Studies which provide more evidence on the breadth of treatments are needed. Future trials should seek to standardise clinical terminology of outcome measures and the time points at which they are measured.
Article
Objective Scarce information is available on the long-term results of endovenous laser ablation (EVLA) for great (GSV) or small saphenous vein (SSV) insufficiency. We sought to provide data on the status of patients after at least 9 years since EVLA. Methods In 2018 we undertook a cross-sectional survey on ambulatory subjects who had undergone EVLA in our tertiary-care center in 2008-2009. Of 240 eligible patients, 5 died of causes not related to EVLA, 20 refused to participate, and 12 were lost to follow-up. Thus, 203 patients were re-evaluated; of them, 161 (79%) had GSV and 42 (21%) had SSV insufficiency. The mean follow-up was 114 months (SD = 11). All included subjects underwent an echo-color-Doppler (ECD), a clinical visit, and a standardized medical history. We assessed the competence of the junction and of the treated and untreated saphenous trunk, and the presence of recurrent varicose veins (RVV). The trunk was considered ablated if non-visible on B-mode or, when visible, if non-compressible or without flow / reflux on color-flow-Doppler analysis. Any RVV with leakage point located in the treated saphenous vein was considered a failure. We asked patients about the effect of EVLA on their preoperative complaints, and about any new or recurrent symptoms. We also recorded any complication or additional subsequent treatment, and all data necessary to calculate the "C" of CEAP and the VCSS. Finally, we investigated potential associations between the study outcomes and variables, using multiple logistic regression techniques. Results Some 10 years after EVLA, we performed a single clinical and ECD evaluation in 203 patients. Only one recanalization (0.5% 95% CI 0.0 to 2.7) of the treated GSV trunk was observed, in an otherwise asymptomatic patient.. Up to 98% of patients were asymptomatic or significantly improved after EVLA. Additional subsequent treatments occurred in 21% and in 5% of subjects with GSV and SSV insufficiency, respectively. Three complications were observed: 2 in GSV group (varicophlebitis, saphenous nerve damage) and one (varicophlebitis) in the SSV group. The mean scores of both the "C" of CEAP and of the VCSS were significantly lower at the end of follow-up, both in patients with GSV ("C": 3.2 vs 1.5, P=0.00001; VCSS 6.3 vs 1.6, P=0.001), and SSV insufficiency ("C": 2.9 vs 1.1, P=0.00001; VCSS 5.4 vs 0.7, P=0.001). Only the maximum diameter of the GSV at the junction independently correlated with ECD-confirmed reflux in the treated saphenous trunk or in the anterior accessory saphenous vein (OR 1.10; 95% CI from 1.01 to 1.21). Conclusions EVLA using a 1470 nm diode laser with radial fibers, provides stable and valuable long-term results in patients with either GSV and SSV insufficiency.