The journal of vascular access (J Vasc Access)

Publisher: Wichtig Editore

Current impact factor: 0.85

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 0.846
2013 Impact Factor 1.017
2012 Impact Factor 0.97
2011 Impact Factor 1.091
2010 Impact Factor 0.764
2009 Impact Factor 1.065

Impact factor over time

Impact factor

Additional details

5-year impact 0.98
Cited half-life 4.10
Immediacy index 0.14
Eigenfactor 0.00
Article influence 0.25
Website Journal of Vascular Access, The website
Other titles The journal of vascular access (Online)
ISSN 1724-6032
OCLC 60648733
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Wichtig Editore

  • Pre-print
    • Archiving status unclear
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • 6 to 12 months depending on journal
  • Conditions
    • On author's personal websiteor departmental web page or institutional repository or PubMed Central
    • Publisher's version/PDF cannot be used
    • Author version accepted for publication after peer-review
  • Classification

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: We describe a technique for rescue surgery of autologous arterovenous fistula (AVF), using bovine mesenteric vein (BMV), which may be used in patients with autologous AVF malfunction caused by steno-occlusion on the arterial side or by fibrosis of the first portion of the vein. To preserve the autologous AVF, we replaced the diseased portion of the artery, or the first centimeters of the vein, by a segment of BMV, with the aim of saving the patency and functionality of the access. We used this technique in 16 cases. All patients underwent hemodialysis treatment immediately after the procedure. Infection or aneurismal dilatation of the graft in implanted BMV was never observed.
    The journal of vascular access 02/2019; 11(2):112-4.
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    ABSTRACT: Percutaneous interventions to maintain or re-establish patent vascular access are common and often necessary for patients on hemodialysis. This case illustrates an extremely rare but potentially devastating complication of one of these procedures: cerebrovascular insult due to paradoxical embolism in the setting of a patent foramen ovale.
    The journal of vascular access 10/2015; DOI:10.5301/jva.5000485

  • The journal of vascular access 10/2015; DOI:10.5301/jva.5000482

  • The journal of vascular access 10/2015; DOI:10.5301/jva.5000480
  • [Show abstract] [Hide abstract]
    ABSTRACT: Purpose: To analyze the reasons for the failure of the primary arteriovenous fistula surgery and explore preventive measures. Methods: A total of 819 patients with end-stage renal disease were enrolled in the study. Autologous arteriovenous fistula surgery was performed on all patients. Their clinical data of hemoglobin (HB), albumin (ALB), cholesterol (CHOL), parathyroid hormone (PTH), blood glucose and blood pressure were collected before surgery, while the diameters of the radial artery and cephalic vein were measured by ultrasound. Results: The operations in 742 patients were successful, but failed in 77 cases (accounting for 7.07%). The failure group was significantly older (61.3 ± 13.4 years) than the successful group (45.6 ± 11.2 years). The ratio of diabetes 36 (46.8%) and hypertension 20 (26.0%) was significantly higher in the failure group than in the successful group, respectively 235 (31.7%) and 145 (19.5%). The patients with blood pressure below 120/70 mm Hg had a higher risk of failed surgery (36.4%) than those with blood pressure above 120/70 mm Hg (9.16%). The cephalic vein and radial artery diameter were significantly smaller in the failure group (1.35 ± 0.64 cm, 2.13 ± 0.81 cm) than in the successful group (1.98 ± 0.47 cm, 2.47 ± 0.74 cm); the PTH levels in the failure group were significantly higher (782.39 ± 423.85) than in the successful group (378.83 ± 352.21). Conclusions: The autogenous arteriovenous fistula surgery failure highly correlated with the patient's age, blood pressure, the primary disease and the vessel diameter. In addition, the PTH levels had a certain correlation with the failure of the fistula surgery.
    The journal of vascular access 10/2015; DOI:10.5301/jva.5000424

  • The journal of vascular access 10/2015; DOI:10.5301/jva.5000476

  • The journal of vascular access 10/2015; DOI:10.5301/jva.5000475
  • [Show abstract] [Hide abstract]
    ABSTRACT: Purpose: A lengthy healing and maturation period follows standard surgical preparation of a permanent arteriovenous access, often requiring or extending use of a venous catheter (VC) for hemodialysis. The InterGraft™ Anastomotic Connector System was developed for minimally invasive anastomosis of an arteriovenous graft (AVG). The venous and arterial InterGraft™ connectors are designed to provide optimized flow dynamics and may result in reduction of AVG stenosis. This pilot study evaluated placement procedure success, patency and safety of the InterGraft™ connectors. Methods: Nine AVGs were implanted in nine patients currently receiving dialysis with a VC. The study allowed use of both connectors (n = 5) or use of the venous connector with a sutured arterial anastomosis (n = 4). Monthly ultrasound examinations were performed throughout the six-month follow-up. AVG angiography was performed at five months. Endpoints included procedure success (acceptable graft flow at end of procedure, without significant bleeding or need for emergent surgery), patency, and device-related major adverse events. Results: Procedure success was attained in all patients. AVGs were used for dialysis within 17 days, on average, and VCs were removed. Three patients exited the study early for reasons unrelated to the InterGraft™ connectors. The remaining six patients had patent grafts: two with assisted and four with unassisted patency. AVG flow rates were greater than 1 L/minute. No dilatations or aneurysms were observed by angiography. There were no device-related major adverse events. Conclusions: The InterGraft™ connectors can be safely and successfully used for AVG anastomoses, with acceptable near-term patency. Further clinical evaluation is warranted.
    The journal of vascular access 10/2015; DOI:10.5301/jva.5000481

  • The journal of vascular access 10/2015; DOI:10.5301/jva.5000474
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    ABSTRACT: Purpose: Neointimal hyperplasia (NH) causes vascular access (VA) stenosis, which results in serious under-dialytic morbidity in hemodialysis patients. We sought to assess whether a vitamin D intervention to NH lesions leads to better VA patency and examined clinical and in vitro studies. Methods: A pilot clinical study of six hemodialysis patients was conducted to elucidate whether 0.5 μg calcitriol injection to stenotic lesion after balloon angioplasty (PTA) maintains better vessel patency until the next follow-up angiography. Localized vitamin D exposure was utilized by delivering and fixing calcitriol intensively at the stenotic lesion through a side-hole catheter with balloon clamping. We also performed vascular smooth muscle cell (VSMC) culture to detect both apoptosis (cell death detection assay) and cell viability (5-Bromo-2'-deoxy-uridine incorporation), and explored the efficacy of vitamin D to inhibit VSMC proliferation. Additionally, immunohistochemistry (IHC) was conducted to examine vitamin D receptor (VDR) expression at NH lesion, obtained from VA surgery. Results: Percent patency, the proportion between stenotic and non-stenotic vessel diameters, increased significantly (p = 0.03) after directly catheter-delivered 0.5 μg calcitriol administration. In vitro VSMC studies, 0.1 nM calcitriol significantly (plt;0.05) enhanced apoptosis and cell-cycle inhibition for two different calcitriol exposure times (15 minutes and 24 hours). IHC staining revealed that VDR-positive hyperplastic cells were observed at NH lesion. Conclusions: Intensive vitamin D exposure at NH lesion has an ability to inhibit further VSMC proliferation, and presumably leads to greater patency rate for recurrent VA stenosis. Further studies are needed to clarify whether its unique property is exhibited through VDR-mediated mechanism.
    The journal of vascular access 10/2015; DOI:10.5301/jva.5000469
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    ABSTRACT: Purpose: We investigated the characteristics of patients who received long-term hemodialysis/hemodiafiltration (HD/HDF) treatment for over 30 years at our group of hospitals and type of vascular access (VA) used. Subjects and methods: As of August 2014, 950 patients were receiving HD/HDF treatment at one of our hospitals. Of those, we investigated 41 (4.3%) undergoing long-term treatment in regard to their characteristics and VA type. The items subjected to analysis were sex, primary illness, age at time of dialysis initiation, present age, duration (years) of HD/HDF, type of arteriovenous fistula (AVF) and arteriovenous graft (AVG), history of surgery and AVF persistence rate. Results: The subjects consisted of 22 men and 19 women, and their mean HD/HDF duration was 33.4 ± 2.8 years. For primary illness, the majority (n = 31) had chronic glomerulonephritis. The age at time of dialysis initiation was 31.7 ± 7.76 years and present age was 64.5 ± 7.65 years. They had received 3.8 VA surgeries. For present VA type, 23 patients (56.0%) had an AVF and 13 (31.7%) an AVG, while 4 AVF patients (9.7%) had a history of AVG use. One patient (2.4%) had a superficialized artery. The mean HD/HDF duration of the 13 AVG patients was 7 years and the longest was 18 years. AVF persistence rate estimated by the Kaplan-Meier method was 75% at 30 years after dialysis initiation. Conclusions: The present results suggest that the ratio of patients with AVG increased with prolonged HD/HDF treatment. AVG has a higher probability of complications and lower patency as compared to AVF, thus careful management is needed. On the other hand, AVG contributes more to a good long prognosis, as it offers efficient dialysis. In cases of vascular deterioration due to long-term hemodialysis, it is inevitable to change from AVF to AVG, thus the ratio of AVG patients is expected to increase in cases of long-term HD/HDF.
    The journal of vascular access 10/2015; DOI:10.5301/jva.5000427
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    ABSTRACT: Objective: The objective of this study is to investigate and compare factors associated with pain during vascular access intervention therapy. Subjects and methods: Fifty patients provided informed consent to participate in a survey of pain by questionnaire after receiving dialysis treatment at our hospital. Balloons for use during the procedure were chosen at random in this prospective randomized control study. A numeric rating scale (NRS) was used for pain assessment. Results: A semi-compliant balloon caused significantly worse pain as compared with the other types of balloons (NRS, 7.67 ± 1.57 vs. 6.02 ± 1.89; plt;0.05). There was no correlation between maximum inflation pressure and pain, or between age and pain, and no difference between diabetic and non-diabetic patients. A comparison among vascular dilation locations, as well as a comparison of AVF with AVG also revealed no significant differences. Conclusions: The reason for severe pain with use of the semi-compliant balloon as compared with the other types might have been due to its characteristics during inflation, as increased diameter leads to an increase in pressure. Mismatching of balloon diameter to vascular diameter may also increase pain.
    The journal of vascular access 10/2015; DOI:10.5301/jva.5000425
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    ABSTRACT: Purpose: The usefulness of access blood flow (QA) measurement is an ongoing controversy. Although all vascular access (VA) clinical guidelines recommend monitoring and surveillance protocols to prevent VA thrombosis, randomized clinical trials (RCTs) have failed to consistently show the benefits of QA-based surveillance protocols. We present a 3-year follow-up multicenter, prospective, open-label, controlled RCT, to evaluate the usefulness of QA measurement using Doppler ultrasound (DU) and ultrasound dilution method (UDM), in a prevalent hemodialysis population with native arteriovenous fistula (AVF). Methods: Classical monitoring and surveillance methods are applied in all patients, the control group (n = 98) and the QA group (n = 98). Besides this, DU and UDM are performed in the QA group every three months. When QA is under 500 ml/min or there is a gt;25% decrease in QA the patient goes for fistulography, surgery or close clinical/surveillance observation. Thrombosis rate, assisted primary patency rate, primary patency rate and secondary patency rate are measured. Results: After one-year follow-up we found a significant reduction in thrombosis rate (0.022 thrombosis/patient/year at risk in the QA group compared to 0.099 thrombosis/patient/year at risk in the control group [p = 0.030]). Assisted primary patency rate was significantly higher in the QA group than in control AVF (hazard ratio [HR] 0.23, 95% confidence interval [CI] 0.05-0.99; p = 0.030). In the QA group, the numbers unddergoing angioplasty and surgery were higher but with no significant difference in non-assisted primary patency rate (HR 1.41, 95% CI 0.72-2.84; p = 0.293). There was a non-significant improvement in secondary patency rate in the QA group (HR 0.510, 95% CI 0.17-1.50; p = 0.207). Conclusions: The measurement of QA combining DU and UDM shows a reduction in thrombosis rate and an increased assisted primary patency rate in AVF after one-year follow-up. Trial registration: Identifier: NCT02111655.
    The journal of vascular access 09/2015; DOI:10.5301/jva.5000461
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    ABSTRACT: Purpose: The radiocephalic arteriovenous fistula (RC-AVF) has significant failure rates due to occlusions and failure to mature. The size and quality of the veins are considerable limiting factors for the procedure. The aim of this pilot study was to describe the No-Touch technique (NTT) to create RC-AVF and present the results up to 1 year of follow-up. Methods: Thirty-one consecutive patients who were referred for surgery for a RC-AVF were included (17 men, mean age 63 years, range 35-84) and operated by NTT where the vein and artery were dissected with a tissue cushion around it. Twenty-two patients had small veins or arteries (≤2 mm), 12 patients had a small cephalic vein (≤2 mm), and the mean distal cephalic vein diameter was 2.4 mm (range 1.0-4.1 mm). Results: Technical surgical success and immediate patency were obtained in all patients. Clinical success was achieved in 23 of the 27 (85%) patients who required hemodialysis. The proportion of primary patency at 30 days and 6 months was 84% and 64%, respectively. Secondary patency at 30 days and 6 months was 97% and 83%, respectively. At 1-year follow-up, primary patency was 54% and secondary patency was 80%. There was no major difference in patency due to preoperative vein diameter. Conclusions: The results of this study indicate that NTT can be used for primary radio-cephalic fistula surgery with very good results. This method offers the potential to create a RC-AVF in patients who are not usually considered appropriate for a distal arm fistula due to a small cephalic vein.
    The journal of vascular access 09/2015; DOI:10.5301/jva.5000456

  • The journal of vascular access 09/2015; DOI:10.5301/jva.5000470

  • The journal of vascular access 09/2015; DOI:10.5301/jva.5000473
  • [Show abstract] [Hide abstract]
    ABSTRACT: Purpose: Well-functioning vascular access is important in hemodialysis patients. The aim of this study was to assess stenosis using color Doppler ultrasonography as well as to investigate a possible association between the need for percutaneous transluminal angioplasty and hemodynamic parameters. Methods: A prospective study of the medical records of color Doppler ultrasonography routine examinations of 372 patients was conducted at a dialysis satellite clinic in Japan. Data were analyzed using logistic regression analysis and the receiver operating characteristic curve. The cutoff point for hemodynamic parameters was determined to explore the predictors of percutaneous transluminal angioplasty. Results: Logistic regression analysis showed that brachial artery flow volume, brachial artery resistance index and puncture point flow volume divided by the quantity of dialysis blood flow rate were independently associated with percutaneous transluminal angioplasty.Brachial artery resistance index over 0.61, brachial artery blood flow volume under 665 mL/min and puncture point flow volume divided by dialysis blood flow rates under 1.25 were predictive values of the need for percutaneous transluminal angioplasty. Conclusions: These parameters could be used as markers for assessing percutaneous transluminal angioplasty risk in hemodialysis patients.
    The journal of vascular access 09/2015; DOI:10.5301/jva.5000448
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    ABSTRACT: Purpose: This study describes a comparative analysis of eight commercial polyurethane, single-lumen peripherally inserted central venous catheters (PICCs) from different vendors. The aim was to investigate the mechanical response of the catheters providing objective and quantitative data to support a comparison among them. Such data could help nurses and physicians to select a central venous catheter (CVC) not only on the basis of the expected dwell duration or of the assessment of the vessels at the desired insertion site but also of the chemical and mechanical properties of the CVC and of the projected response of the body to these properties. Methods: An experimental procedure was defined and tests were performed to assess some main characteristics of the PICC lines, including macro and microgeometric features, chemical and physical properties, and mechanical response. Preliminary measurements were performed to accurately define all geometric characteristics, including length, inner and outer diameters, and any inherent initial curvature of the catheter. Micro-geometric features were investigated using surface roughness analysis, optical microscopy, and scanning electron microscopy. Mechanical properties were studied by means of dynamic mechanical thermal analysis, simple uniaxial tensile tests, and kinking tests. Results: Results are discussed in order to compare the different PICC lines. In particular, they show that polyurethane catheters can have a different mechanical behavior, which might play a role in the onset of pathologic processes and result in an increased risk and incidence of catheter-related complications. Conclusions: This study provides useful information that can help identifying and facilitate the choice of a PICC.
    The journal of vascular access 09/2015; DOI:10.5301/jva.5000452
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    ABSTRACT: We analyzed the current health economics of vascular access (VA) procedures in Japan. Results showed that the yearly VA-related medical expenses were as high as JPY20 billion and accounted for 1.4% of the total healthcare cost for chronic renal failure. The United States Renal Data System (USRDS) statistics showed that in the USA the yearly VA-related medical expenses accounted for 1.2% of the total medical cost for chronic renal failure, indicating that the costs did not differ much between the two countries. Moreover, percutaneous transluminal angioplasty (PTA) accounts for approximately 60% of VA procedures performed in Japan, and this ratio is increasing every year. Due to the aging of society and longer treatment periods, it is thought that PTA will become a significant procedure for the treatment of chronic renal failure in Japan.
    The journal of vascular access 09/2015; DOI:10.5301/jva.5000464
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    ABSTRACT: Background: Vascular access intervention (VAI) is a procedure essential to the maintenance of patency in vascular access and has become indispensable to nephrologists. This procedure has changed nephrology to a more exciting field. Concept: This report describes the VAI technique which is based on 15 years of treatment experience of the author of this report and which the author has taught to young nephrologists in Hiroshima.
    The journal of vascular access 09/2015; DOI:10.5301/jva.5000418