Impaired Maturation of Arteriovenous Fistula for Haemodialysis Due to Forearm Artery Stenosis: Percutaneous Endovascular Treatment

2017 ◽  
Vol 18 (6) ◽  
pp. 503-507
Author(s):  
Nicola Pirozzi ◽  
Jacopo Scrivano ◽  
Roberto Pirozzi ◽  
Emanuela Cordova ◽  
Giorgio Punzo ◽  
...  

Introduction Distal autogenous arteriovenous fistula (dAVF), considered the “gold standard” vascular access for haemodialysis, suffers from a high rate of impaired maturation. One of the usual causes is low-flow associated forearm arterial stenosis. In such cases, endovascular treatment by percutaneous transluminal angioplasty represents a helpful option to enable maturation of the vascular access. Currently, there are few reports concerning the treatment of this complication. Therefore, we describe our single-centre experience based on a retrospective review of prospectively collected data. Patients and methods We treated 18 consecutive patients from July 2007 to January 2014 (16 radio-cephalic, 2 ulno-basilic distal AVF). A low flow due to forearm artery stenosis was diagnosed by duplex examination, as routinely performed one month after dAVF creation. An anterograde trans-brachial access was used for a 4-mm high-pressure angioplasty of the stenosed artery. Results All interventions resulted in patent fistulas. Isolated percutaneous transluminal angioplasty (PTA) was required without need of stent placement. Mean blood flow increased from 304 mL/min, preoperatively, to 671 mL/min (p<0.01), as checked one week after the procedure. One-year primary and secondary patency were 84% ±7.3% and 92% ± 9.2%, respectively. Under no circumstances did access-induced distal ischemia occurred during follow-up. Conclusions Endovascular approach is a helpful and minimally invasive procedure for treatment of delayed maturation of dAVF related to forearm artery stenosis.

2020 ◽  
pp. 112972982094665
Author(s):  
Gabriela Teixeira ◽  
Paulo Almeida ◽  
Luís Loureiro ◽  
Inês Antunes ◽  
Duarte Rego ◽  
...  

Background: Hemodialysis access–induced distal ischemia consists of symptomatic extremity malperfusion after vascular access creation. It is usually caused by discordant vascular resistance, with arteriovenous shunting of a high blood volume from arterial into venous system and subsequent hand hypoperfusion. Less often, hemodialysis access–induced distal ischemia is caused by arterial stenosis. In these cases, access frequently has normal/low flow, radial pulse is usually absent and not recoverable with vascular access digital compression, diabetes is often present, and percutaneous transluminal angioplasty can be critical for access and limb salvage. Methods: Retrospective study conducted between June 2011 and February 2018 of patients with vascular access submitted to arterial percutaneous transluminal angioplasty for limb-threatening ischemia. Results: Twenty-nine patients were referred for arterial angiography after hemodialysis access–induced distal ischemia diagnosis and physical examination or ultrasound findings suggestive of arterial disease. In 11 patients, percutaneous transluminal angioplasty was not technically feasible. Among 18 treated patients, 83.3% had diabetes and 60% had skin ulcerations. Target arteries were radial (11), brachial (7), axillar (2), ulnar (2), and subclavian (1). Clinical success, defined as arteriovenous maintenance and wound healing/pain resolution, was observed in 12 patients (66.7%). Concomitant procedures included adjuvant banding ( n = 2) and finger amputation ( n = 1), and one reintervention was performed. No intra- or postoperative complications were reported. Conclusion: Hemodialysis access–induced distal ischemia is a serious complication of hemodialysis vascular access, with multifactorial etiology. Correct and timely diagnosis is crucial for maintaining access and limb salvage. Percutaneous transluminal angioplasty is a minimally invasive procedure that may be effective and long-lasting in carefully selected patients with ischemic complaints.


2020 ◽  
pp. 112972982095993
Author(s):  
Mahoko Yoshida ◽  
Shigehiro Doi ◽  
Ayumu Nakashima ◽  
Yasufumi Kyuden ◽  
Toru Kawai ◽  
...  

Background: The objective of this multicenter, prospective observational study was to determine the factors related to patency rates after construction of vascular access (VA) and the first percutaneous transluminal angioplasty (PTA). Methods: The 24-month primary and secondary patency rates after construction of a radiocephalic arteriovenous fistula (RC-AVF) and arteriovenous graft (AVG) were evaluated using the Kaplan–Meier method and log-rank test. The 12-month post-PTA patency rate was also investigated. A Cox proportional hazard model was used to identify clinical parameters associated with the primary patency rate and the post-PTA patency rate. Results: A total of 611 patients were enrolled in the study. The primary patency rate after VA construction was lower in hemodialysis (HD) patients with an AVG than in those with an AVF. Aging (hazard ratio [HR], 1.02 per 1 year; p < 0.001), female sex (HR, 1.41; p = 0.03), diabetes mellitus (HR, 1.37; p = 0.03), low serum albumin (HR, 0.76 per 1-g/dL decrease; p = 0.02), and use of an erythropoietin-stimulating agent (HR, 1.62; p = 0.02) were risk factors for VA problems. The post-PTA patency rate was associated with aging (HR, 1.02; p < 0.001), diabetes mellitus (HR, 1.49; p = 0.02), polycystic kidney disease (HR, 2.14; p = 0.01), temporary catheter use for initiation of HD (HR, 1.60; p = 0.02), and period from VA construction to use (HR, 0.99; p = 0.04). Conclusion: Although a poor patency rate is commonly associated with advanced age and diabetes, different risk factors affect patency between VA construction and the first PTA.


2021 ◽  
pp. 112972982110232
Author(s):  
Zhen Gan ◽  
Liang Zhou ◽  
Xian Wu ◽  
Chun-Feng Gu ◽  
Xu He ◽  
...  

Purpose: To compare the safety and efficacy of X-ray-guided and ultrasound-guided percutaneous transluminal angioplasty in treating arteriovenous fistula dysfunction. Materials and methods: Data for 219 patients with arteriovenous fistula dysfunction between January 2016 and December 2018 were retrospectively analyzed. The primary endpoints were technical success, clinical success, and primary patency rates. The secondary endpoints were complications and secondary patency rates. Procedure outcomes and both endpoints were evaluated by propensity score analysis. Results: After the propensity score matching, 73 matched pairs of cases were created with 34 pairs of autogenous arteriovenous fistula cases and 39 pairs of prosthetic arteriovenous graft cases. There was no significant difference between the X-ray-guided and ultrasound-guided group, respectively, regarding the technical success rate (84.9% vs 87.7%, p = 0.630), clinical success rate (98.6% vs 97.3%, p = 0.999), and complications (10.9% vs 5.5%, p = 0.228). Although the 6- and 12-month secondary patency rates for the dialysis access between the two groups had significant difference ( p < 0.05), there was no significant difference in primary and secondary patency curves between the two groups ( p > 0.05). Conclusion: The overall efficacy of ultrasound-guided versus X-ray-guided percutaneous transluminal angioplasty in treating arteriovenous fistula dysfunction might be comparable.


2019 ◽  
Vol 42 (12) ◽  
pp. 675-683 ◽  
Author(s):  
Ursula Hadimeri ◽  
Anna Wärme ◽  
Salmir Nasic ◽  
Sven-Göran Fransson ◽  
Ann Wigelius ◽  
...  

Objective: To clarify the reasons and beneficial effects and duration of arteriovenous fistula patency after radiological interventions in arteriovenous fistula. The patients investigated were referred due to arteriovenous fistula access flow problems. Material and methods: In 174 patients, 522 radiological investigations and endovascular treatments such as percutaneous transluminal angioplasty were analyzed, retrospectively. All investigations were performed due to clinical suspicion of impaired arteriovenous fistula function. Results: Arterial stenosis was significantly more frequent among patients with diabetic nephropathy (p < 0.001) and interstitial nephritis (p < 0.001). According to the venous stenosis, the diagnosis did not affect the frequency (p = 0.22) or the degree (p = 0.39) of stenosis. The degree of stenosis prior to percutaneous transluminal angioplasty correlated significantly with the degree of remaining stenosis after intervention (p < 0.001). Of the 174 patients, 123 (71%) performed a total of 318 investigations including percutaneous transluminal angioplasty. Repeated percutaneous transluminal angioplasty was performed significantly more often in patients with diabetic nephropathy. The median times to the first percutaneous transluminal angioplasty and to the subsequent percutaneous transluminal angioplasties were 9.5 and 5 months, respectively. Arteriovenous fistula in patients with diabetic nephropathy performed similar to most other diagnoses, although performing more percutaneous transluminal angioplasty/patient than most other diagnoses. Conclusion: Many patients could maintain long-term patency of arteriovenous fistula, including those with diabetic nephropathy, with repeated interventions; this motivates a closer follow-up for these patients. Clinically significant stenosis should be dilated as meticulously and as soon as possible. Occlusions of the arteriovenous fistula in most instances can be successfully thrombolyzed or dilated upon early diagnosis.


2020 ◽  
pp. 112972982094307
Author(s):  
Antonio Granata ◽  
Rosario Maccarrone ◽  
Luca Di Lullo ◽  
Walter Morale ◽  
Giovanni Giorgio Battaglia ◽  
...  

Background: Stenosis is the main cause of arteriovenous fistula failure and is due to neointimal hyperplasia. Percutaneous transluminal angioplasty is the gold standard for patients with vascular access stenosis. The aim of the study was to evaluate the efficacy and safety of ultrasound-guided percutaneous transluminal angioplasty in the treatment of native arteriovenous fistula venous stenosis. Methods: The need for intervention was determined by physical examination and duplex ultrasound in 162 patients. All patients with failing or not maturing arteriovenous fistula were treated in the outpatient setting under ultrasound guidance. Procedural success was assessed with repeated post-procedural ultrasound examinations. All procedures were performed under local anesthesia by a single nephrologist and were performed in a single vascular laboratory, while follow-up ultrasound was performed in the dialysis unit of destination. Results: Early technical success was obtained in 95.6% of cases (154 of 162). Complications occurred in 22 patients (13.5%) with no major complication requiring surgical or fluoroscopic endovascular intervention. Primary patency at 6 and 12 months was 84% and 69.8%, respectively. Risk factors for arteriovenous fistula failure/secondary percutaneous transluminal angioplasty were vascular access low blood flow rate and vintage, as well as the need for thrombolysis during the first percutaneous transluminal angioplasty. Conclusion: Ultrasound-guided percutaneous transluminal angioplasty is a valuable tool to treat vascular access stenosis.


2019 ◽  
Vol 21 (4) ◽  
pp. 520-523
Author(s):  
Nicola Pirozzi ◽  
Lorenzo De Alexandris ◽  
Loredana Fazzari ◽  
Jacopo Scrivano ◽  
Roberto Pirozzi ◽  
...  

Introduction: Outflow stenosis is a frequent complication of vascular access for hemodialysis. It may cause increased pressure within the angioaccess along with reduced blood flow. Elective treatment is percutaneous transluminal angioplasty; however, when a long occlusion (>2 cm) occurs, success and mid-term patency of endovascular treatment are uncertain. We describe a case series of patients with long occlusion of elbow outflow complicating an otherwise excellent forearm arteriovenous fistula, treated by a bypass across the elbow through cubital vein transposition. Patients and methods: Six consecutive patients have been treated between 2015 and 2017; all were referred because of either low flow, increased venous pressure, excessive bleeding time, or recirculation and were examined by duplex ultrasound. A total of 83% of patients showed associated thrombosis within the access. All procedures were performed under loco-regional anesthesia and preventive hemostasis. Surgical thrombectomy was also performed when needed. Results: Immediate success was obtained in all but two patients converted in veno-venous polytetrafluoroethylene bypass. Post-operative blood flow increased from 316 to 878 mL/min. All patients were dialyzed through the forearm access immediately the day after surgery, without the need for central vein catheter. Overall, 75% of patients needed a percutaneous transluminal angioplasty of the veno-venous anastomosis within 6 months. Primary and secondary patency at 12 and 24 months were 25%–0% and 100%–100%, respectively. Conclusion: Outflow reconstruction through the elbow bypass by cubital vein transposition is a valuable resource to rescue radiocephalic arteriovenous fistula complicated by outflow obstruction, avoiding the use of an interim central vein catheter. Endovascular treatment is vital to maintain functional patency in the mid- and long term.


2021 ◽  
Vol 1 (1) ◽  
pp. 19-23
Author(s):  
Muhammad Zaini Azwan ◽  
Anak Agung Ngurah Nata Tresnawan Putra

Introduction: Many causes leads to kidney impairment. This does not rule out the increasing number of patients undergoing hemodialysis.  The common vascular access used during hemodialysis is an arteriovenous fistula (AVF). The arteriovenous fistula was preferred because it lasts longer and has a lower risk of infection for vascular access, meanwhile central venous stenosis or occlusion in the vein that carries the blood from the extremities to the heart often occur. If vascular access is still used during hemodialysis in which central venous stenosis is formed, it needs to make a new vascular access option. Percutaneous transluminal angiography (PTA) main objectives are to dilate the venous lesion that has occlusion more than 50% and extending the lifespan of arteriovenous fistula. In this case, we report six patients hemodialysis with central venous stenosis treated with percutaneous transluminal angiography.  This procedure has benefits that are arteriovenous fistula can be used again to reach hemodialysis adequacy optimally and reduce pain and swelling in the arms. Case description: There six cases who were 45,48,57.58,63 and 66 years old who underwent percutaneous transluminal angioplasty procedures for central venous stenosis. Several past illnesses of the patients underlying the kidney impairment such chronic hypertension, chronic coronary heart complications, and/or diabetes. Several patients felt AVF swollen and/or painful. Minimal residual stenosis after balloon angioplasty was performed. Conclusion: According to our cases, patients that underwent the hemodialysis felt swollen or/and pain due to stenosis ballooning angioplasty help minimize the residual stenosis.


1983 ◽  
Vol 130 (1) ◽  
pp. 196-196
Author(s):  
R.A. Grossman ◽  
D.C. Dafoe ◽  
R.B. Shoenfeld ◽  
E.J. Ring ◽  
G.K. McLean ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document