Sven Petersen- Professor
- Surgeon at Asklepios Klinik Altona
Sven Petersen
- Professor
- Surgeon at Asklepios Klinik Altona
About
142
Publications
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3,885
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Introduction
Current institution
Additional affiliations
Position
- Asklepios Medical School
Education
January 2012 - December 2012
Publications
Publications (142)
Introduction: The aim of the study was to evaluate the safety and feasibility of stapled transanal procedures performed by a 36 mm stapling device, the so-called TST36 stapler.
Methods: From September 2013 to June 2014 a prospective observational study was carried out by 8 proctology centers in Germany. The Cleveland Clinic Incontinence Score (CCIS...
Purpose
The present national guideline aims to provide recommendations for physicians involved in the treatment of patients with pilonidal disease. It has been published previously as an extended version in German language.
Methods
This is a systemic literature review. The present guideline was reviewed and accepted by an expert panel in a consensu...
Introduction: Potential advantages of minimally invasive surgery have been topical over last few decades. Results of minimally invasive surgery for pilonidal sinus are presented: skin-preserving pit picking as a “how I do it – presentation”.
Methods: All fistula tracts were excised by 3.5 mm punch biopsy needle. Tracts leading to subcutaneous cavit...
Increasing evidence suggests that COX-2 promotes carcinogenesis but it is controversial as to whether COX-2 expression is a prognostic factor for rectal carcinoma.
Data of 62 consecutive patients with rectal carcinoma in UICC-stages I-III, which were curatively resected between 1995 and 1996, were analyzed. The paraffin-embedded tumor samples were...
Laparoscopic assisted sigmoid resection (LASR) has become a widely accepted procedure in colorectal surgery. In the last decade, numerous variations of surgical details have been established. In order to demonstrate a feasible technique, this video is provided.
LASR is performed using four ports. The first port is inserted via open access by a mini...
Gout is a common metabolic disorder caused by hyperuricemia, which results in the deposition of monosodium urate crystals in various parts of the body. In the present case, a large gout tophus was detected based on gout disease. Although gouty tophi might occur in many locations during a long-standing gout disease, the vast majority are located in...
There are a number of conservative
and surgical treatment options for acute fissure
as well as chronic disease. If the symptoms
are manageable, first-line treatment with a
calcium antagonist should be offered. Nowadays,
conservative treatment is carried out with the
calcium antagonist diltiazem 2%. If there is no
freedom from symptoms, the surgical...
There are a number of conservative and surgical treatment options for acute fissure as well as chronic disease. If the symptoms are manageable, first-line treatment with a calcium antagonist should be offered. Nowadays, conservative treatment is carried out with the calcium antagonist diltiazem 2%. If there is no freedom from symptoms, the surgical...
The current status of pilonidal sinus
disease and its treatment is presented on the
basis of the current S3 guidelines. The guideline
indicates that pilonidal sinus disease should be
distinguished between acute abscessing form and
chronic form. There are essentially three different
treatment options available for treatment, which
are the minimally...
Background:
Normal pressure hydrocephalus (NPH) is a frequent disease in elderly patients. The main symptoms are gait disturbance, urine incontinence, and cognitive decline. Fecal urgency and incontinence are described as rare additional symptoms; however, no exact numbers are known. The aim of this study was to investigate the prevalence of fecal...
Background
Prediction modelling increasingly becomes an important risk assessment tool in perioperative systems approaches, e.g. in complex patients with open abdomen treatment for peritonitis. In this population, combining predictors from multiple medical domains (i.e. demographical, physiological and surgical variables) outperforms the prediction...
Numerous patient-related clinical parameters and treatment-specific variables have been identified as causing or contributing to the severity of peritonitis. We postulated that a combination of clinical and surgical markers and scoring systems would outperform each of these predictors in isolation. To investigate this hypothesis, we developed a mul...
Background
Minimally invasive methods in pilonidal sinus disease (PSD) surgery are becoming standard. Although long-term results are available for some techniques, long-term outcome data of patients after pit picking is lacking. We aimed at investigating perioperative and long-term outcomes of patients undergoing pit picking, Limberg flap or primar...
Background:
Staged lavage was first instituted in the 1970s and now serves as a therapeutic option for septic patients
with peritonitis. A central aspect of this treatment concept is leaving the abdomen open after a wide
incision. To evaluate the influence of transverse vs. median access to the abdomen in staged lavage,
data from the authors’ patie...
Our understanding of pilonidal sinus disease (PSD) is based on a paper published 29 years ago by Karydakis. Since then, surgeons have been taught that hair more easily penetrates wet skin, leading to the assumption that sweating promotes PSD. This postulate, however, has never been proven. Thus we used pilocarpine iontophoresis to assess sweating i...
Introduction:
Pilonidalis sinus disease is a mostly chronic selective infection of the hairy skin in the area of skin wrinkles, mainly in the area of the natal cleft. Open treatment is still the most common recommended therapy. Nevertheless, there may be healing disorders within the framework of open wound treatment, which can significantly compli...
Background: Staged lavage was first introduced in the 1970s and now serves as a therapeutic option for septic patients with peritonitis. A central aspect of this treatment concept is leaving the abdomen open after a wide incision. To evaluate the influence of transverse vs. median access to the abdomen in staged lavage, data from the authors’ patie...
Im letzten Jahr sind von den wichtigsten proktochirurgischen Fachgesellschaften Leitlinien (Guideline, GL) zur Behandlung des Hämorrhoidalleidens erarbeitet worden. Diese dienen der Transparenz für klinische Entscheidungen und bringen Sicherheit für Patienten, aber auch für den Behandler. Während bereits 2018 die Leitlinie der amerikanischen Kolore...
INTRODUCTION:
Sinus pilonidalis is a chronic infection of the hairy skin in the area of skin wrinkles, with the most common localization in the natal cleft. The disease often has a significant impact on the quality of life of the affected person; the treatment may be complex and needs to be adapted to the patient's needs.
METHODS:
Below is an...
Zusammenfassung
Einleitung Der Sinus pilonidalis ist eine meist chronische punktuelle Infektion der behaarten Haut im Bereich von Hautfalten mit der häufigsten Lokalisation im Bereich der Rima ani. Die Erkrankung hat oft erhebliche Auswirkung auf die Lebensqualität der Betroffenen, die Behandlung kann komplex sein und muss dem Patientenbedarf angep...
Background
The treatment of obstructive defecation disorder is a challenge for all concerned. Especially complex here is the treatment of pelvic floor dyssynergy, so-called anismus. The spectrum of conservative treatment ranges from biofeedback therapy to drug treatment for relaxing the pelvic floor. The international literature refers to the use o...
Introduction: Sacrococcygeal Pilonidal Disease (SPD) presents in a variety of patterns. Multiple classifications have been proposed but none are in everyday use. In order to compare treatment outcomes, a method of categorizing is required.
Methods: Discussion over e-mail between several surgeons was performed over a period of 10 months.
Results: Su...
Opinion statement:
Extramammary Paget's disease (EMPD) is a rare, slow growing non-melanoma skin cancer.Diagnosis is often significantly delayed, since clinical presentation may resemble common benign dermatoses. Treatment is characterized by high recurrence rates. This is in part due to ill-defined margins and by frequent development of satellite...
Systemic sclerosis (SSc) is an autoimmune connective tissue disorder. Anorectal involvement might typically cause fecal incontinence and rarely rectal prolapse. Here we report three female patients, who were admitted with a mean history of 10 years suffering from SSc. All patients presented with the initial symptom of anal incontinence, in all case...
Systemic sclerosis (SSc) is an autoimmune connective tissue disorder. Anorectal involvement might typically cause fecal incontinence and rarely rectal prolapse. Here we report three female patients, who were admitted with a mean history of 10 years suffering from SSc. All patients presented with the initial symptom of anal incontinence, in all case...
Introduction: The aim of the study was to evaluate the safety and feasibility of stapled transanal procedures performed by a 36 mm stapling device, the so-called TST36 stapler. Methods: From September 2013 to June 2014 a prospective observational study was carried out by 8 proctology centers in Germany. The Cleveland Clinic Incontinence Score (CCIS...
Die Verwendung von synthetischen Netzen zur Beckenbodenrekonstruktion ist mit dem Risiko einer Netzerosion in Nachbarorgane verbunden. Wir berichten über den Fall einer Patientin, die 9 Jahre nach netzgestützter Sakrokolpopexie eine rektovaginale Fistel entwickelte. Der Grund für diese Komplikation war eine Mesh-Migration in das Rektum. Um das Netz...
Since its introduction, stapled hemorrhoidopexy (SHP), the so-called Longo procedure, became a widely accepted treatment option for prolapsing hemorrhoids. Nevertheless, from the early years, concerns grew about the early functional results and potential recurrences. In order to evaluate of SHP with special respect to early defecation disorders und...
OriginalpublikationAytac E, Stocchi L, Gorgun E, Ozuner Gokhan (2014) Risk of recurrence and long-term outcomes after colonic diverticular bleeding. Int J Colorectal Dis 29:373–378 Fragestellung und HintergrundDivertikelerkrankungen gehören zu den häufigsten Ursachen für akute untere gastrointestinale Blutungen. In dieser Studie werden Krankheitsve...
Hintergrund
Der Sinus pilonidalis ist eine erworbene Erkrankung. Haare spielen bei der Pathogenese eine wichtige Rolle. Das Ziel dieser Leitlinie ist, die Vor- und Nachteile verschiedener Behandlungsverfahren aufzuzeigen und eine optimale evidenzbasierte Therapieempfehlung abzugeben.
Methode
Es wurde ein systematisches Review der Literatur vorge...
Pilonidal sinus disease is most probably caused by a chronic infection due to hyperactivity of pluripotent hair follicles in the midline of the natal cleft. Young males with a dark hair type are most often affected by the disease. Currently, excising the infected area is still the basic treatment. Open healing is a safe and easy treatment option; n...
Rektozele – ist die Größe wichtig? Fragestellung und Hintergrund. Der allgemeinen Meinung nach sind gro ße Rektozelen (>2 cm) assoziiert mit Schwierig keiten bei der Entleerung, mit Obstipation, rektalen Schmerzen und rektalen Blutungen. Ziel dieser Studie war die Untersuchung, ob sich die Größe der Rektozele auf die Symptome des Patienten oder di...
Purpose:
Contour Transtar procedure for rectal prolapse is a promising technique according to safety and efficacy. One potential surgical problem is failure of the stapler due to the thick rectal wall. In order to evaluate the practicability and the impending limitations of the Contour Transtar technique, we reviewed our data with special respect...
Fragestellung und Hintergrund
Nach einer rektalen Stapler-Mukosektomie bei Hämorrhoiden wurden verschiedene Spätkomplikationen beschrieben, die einen erneuten Eingriff zur Folge haben können. Eine potenzielle Behandlungsart bei persistierenden Beschwerden nach einer Stapler-Hämorrhoidopexie (SHP) oder Stapleroperation wegen einer Rektozele ist die...
Various sequelae which might lead to reintervention have been described after stapled rectal mucosectomy for hemorrhoids. One potential treatment modality for persistent complaints after stapled hemorrhoidopexy (SHP) or stapling for rectocele is the so-called agraffectomy (removal of the retained staples). This treatment option means a further proc...
Surgery for third degree rectal prolapse and its sequelae in the elderly still represents a challenge.
We report the case of a 92-year-old patient with a history of recurrent third degree rectal prolapse of at least 2 years’ standing. The patient had already had abdominal rectopexy for the same disease 16 years previously. In addition, she now suff...
Background
It has been proven that pre-operative and postoperative surgical safety checklists designed to improve team communication and consistency of care are useful tools to improve surgical outcome. The aim of this study was to investigate the effectiveness of intra-operative consultation (IOC) with regard to its feasibility. IOC comprises an a...
It has been proven that pre-operative and postoperative surgical safety checklists designed to improve team communication and consistency of care are useful tools to improve surgical outcome. The aim of this study was to investigate the effectiveness of intra-operative consultation (IOC) with regard to its feasibility. IOC comprises an assessment o...
The authors have provided a checklist to assess the quality of systematic reviews. In our opinion, the importance of the question whether the relevant data have been correctly extracted from the original publications cannot be emphasized strongly enough. We have studied the results of different meta-analyses of stapled hemorrhoidopexy versus conven...
It has long been suspected that a family history of pilonidal sinus disease may predispose to higher disease incidence. The influence of family history on recurrence rate has not been investigated. The purpose of this study was to evaluate the recurrence rate in patients with both a personal and a family history of pilonidal sinus disease.
A standa...
Background: Pilonidal sinus disease (PSD) may be present as chronic PSD, which may eventually exacerbate. Factors associated with the progression of chronic PSD to acute abscess-forming PSD were investigated. Methods: Records of 1962 patients admitted to the surgical departments of three hospitals of the German Armed Forces between 1980 and 1996 wi...
To study potential benefits of postoperative epilation after pilonidal sinus surgery, the long-term effect of hair removal on pilonidal recurrence was investigated.
A total of 1,960 patients with pilonidal sinus treated surgically from 1980 to 1996 in three hospitals of the Deutsche Bundeswehr were eligible for the study. Regular hair removal with...
This study was designed to investigate the effectiveness of intraoperative consultation (IOC) with regard to its feasibility for improving quality management. IOC comprises an assessment of major steps in the operative procedure by another surgeon requested by the operating surgeon to be present in the operating room in a consultative capacity duri...
Introduction
Asymptomatic pilonidal sinus disease (PSD) discovered incidentally is regarded as a precursor of symptomatic disease, which is characterized by intradermal hair eliciting an inflammatory reaction. We aimed to investigate whether asymptomatic PSD already shows inflammation, though clinically inapparent, or represents a ‘virgin’ sinus.
Asymptomatic pilonidal sinus disease (PSD) discovered incidentally is regarded as a precursor of symptomatic disease, which is characterized by intradermal hair eliciting an inflammatory reaction. We aimed to investigate whether asymptomatic PSD already shows inflammation, though clinically inapparent, or represents a 'virgin' sinus.
One thousand s...
and aims To elicit mechanisms and timing of sinus development, the role of age at onset of symptoms, symptomatic disease duration, and consecutive number of sinuses were investigated.
Analysis of 1,962 medical records of patients admitted for primary surgical pilonidal sinus treatment.
Sinus number ranged from 1 to 16 (median 2), with chronic pilon...
To study the potential benefits of intraoperative methylene blue (MB) use in pilonidal sinus surgery, the correlation between long-term recurrence rate and intraoperative MB use in pilonidal sinus surgery was investigated.
Explicit investigations of MB effects in sinus surgery are scarce and inconclusive; an effect on long-term recurrence rate has...
This study was designed to evaluate the timeline of recurrence of pilonidal sinus disease after primary vs. multiple surgery. Data of medical military service in Germany were reviewed.
Telephone interview of 205 patients after pilonidal sinus disease surgery after median interval of 14.8 (standard deviation +/-3.9) years was conducted. A total of 3...
Incontinence is a late complication that causes symptoms years after radiation treatment and is difficult to deal with; it poses a particular challenge for care-providing physicians.
This review looks at our current knowledge of the incidence, symptoms, and treatment of fecal incontinence induced by radiation treatment. An approximate estimation ba...
Two different approaches can be distinguished in the surgical treatment of rectal prolapse, i. e. the transabdominal route and the perineal procedures. The following article deals with both operative options with a detailed discussion of the Delorme's operation and the perineal rectosigmoidectomy, also known as the Altemeier procedure for the perin...
Because of the higher quality of life that the Karydakis flap provides compared to excision-only treatment, it became a recommended closure technique for pilonidal sinus disease. This study aimed to evaluate whether Karydakis flap technique can be performed in potentially infected tissue if the surrounding cellulitis allows wound closure.
188 patie...
Zur chirurgischen Therapie des manifesten Rektumprolaps stehen grundsätzlich zwei verschiedene Zugangswege zur Verfügung, nämlich der transabdominelle und der sog. perineale. Die folgende Arbeit gibt eine Übersicht über beide Verfahren. Bei den abdominellen Operationen werden die ausschließlichen Rektopexietechniken den Ergebnissen der Resektionsre...
Stapled transanal rectal resection recently became a recommended surgical procedure for obstructed defecation syndrome. One problem when using a transanal stapling device for rectal surgery is the potential threat to structures located in front of the anterior rectal wall. We decided to perform a combined procedure of transanal rectal resection wit...
Resection combined with standard lymphadenectomy is generally recommended for T2N0 rectal cancer. In order to evaluate the outcome of this specific tumor category, our own data were reviewed.
To evaluate the results of patients with curative resected T2N0 rectal carcinoma, we reviewed data of 164 consecutive patients with adenocarcinoma of the rect...
Botulinum toxin (BTX) types A and B have been used with success in cosmetic dermatology and hyperhidrosis treatment.
The present review focuses on other uses of BTX in dermatology. Discussed in particular are the available data on BTX in inflammatory diseases, proctology, and some other indications. From studies in various types of eczema, it seems...
Sublay prosthetic herniorrhaphy has become a widely accepted procedure for incisional hernias. To evaluate the effect of fascia closure on top of mesh repair on infection, and the recurrence rate, the authors reviewed their data regarding herniorrhaphy in the sublay technique. This study was a retrospective analysis of 175 consecutive patients who...
