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dialysis arteriovenous fistula

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https://www.readbyqxmd.com/read/27911463/vascular-access-types-in-patients-starting-hemodialysis-after-failed-kidney-transplant-does-close-nephrology-follow-up-matter
#1
Naveed Ul Haq, Mohamed Said Abdelsalam, Mohammed Mahdi Althaf, Abdulrahman Ali Khormi, Hassan Al Harbi, Bader Alshamsan, Mamdouh Nasser Albaqumi, Dieter Clemens Broering, Lutfi Alkorbi, Hassan Ali Aleid
BACKGROUND: Native arteriovenous fistulae (AVFs) are preferred while central venous catheters (CVCs) are least suitable vascular access (VA) in patients requiring hemodialysis (HD). Unfortunately, around 80% of patients start HD with CVCs. Late referral to nephrologist is thought to be a factor responsible for this. We retrospectively analyzed the types of VA at HD initiation in renal transplant recipients followed by nephrologists with failed transplant. If early referral to nephrologist improves AVF use, these patients should have higher prevalence of AVF at HD initiation...
November 28, 2016: Journal of Vascular Access
https://www.readbyqxmd.com/read/27886364/ultrasound-guided-angioplasty-for-treatment-of-peripheral-stenosis-of-arteriovenous-fistula-a-single-center-experience
#2
Sunil Kumar, Nikhil Mahajan, Shivakumar S Patil, Navdeep Singh, Soham Dasgupta, Seetharam Tejavath, Sarbpreet Singh, Deepesh B Kenwar, Ashish Sharma, Mukut Minz
PURPOSE: In patients with end-stage renal disease, arteriovenous fistulas (AVFs) are the access of choice for hemodialysis but are often complicated by stenosis. We present single-center experience of 78 ultrasound-guided angioplasty procedures for treating peripheral stenoses of AVFs. METHODS: Between January 2013 and November 2015, 78 angioplasties were performed under ultrasound guidance in 53 patients with end-stage renal disease who were referred from dialysis centers with low flow rate, difficult cannulation, increased cannulation site bleeding, immature or thrombosed AVF...
November 22, 2016: Journal of Vascular Access
https://www.readbyqxmd.com/read/27866375/pre-operative-assessment-for-arteriovenous-fistula-placement-for-dialysis
#3
REVIEW
Maria G Marques, Pedro Ponce
Native AV fistulas are considered to be the best VA for most dialysis patients. A careful preoperative process of care is essential to maximize the proportion of fistulas that achieve adequacy for dialysis. An individualized and timely evaluation of patients starts early with the identification of risk factors, followed by a physical examination which should be complemented by ultrasound vascular mapping in most cases. Vascular mapping includes any technique that leads to information on patient's inflow and outflow anatomy (± hemodynamics) as they relate to arteriovenous access creation and may predict maturation...
November 20, 2016: Seminars in Dialysis
https://www.readbyqxmd.com/read/27834451/elements-of-dialysis-nursing-practice-associated-with-successful-cannulation-result-of-an-international-survey
#4
Maria Teresa Parisotto, Francesco Pelliccia, Aileen Grassmann, Daniele Marcelli
BACKGROUND/AIM: Vascular access (VA) cannulation is an essential skill for dialysis nurses: failure to correctly repeat this operation daily may result in serious complications for the patients. This study investigates if different aspects of arteriovenous fistula and graft cannulation have an effect on the development of acute access complications, which may affect the VA survival. METHODS: In April 2009 a cross-sectional survey was conducted in 171 dialysis units located in Europe, the Middle East and Africa to collect details on VA cannulation practices...
November 9, 2016: Journal of Vascular Access
https://www.readbyqxmd.com/read/27832203/angiotensin-converting-enzyme-inhibitors-angiotensin-receptor-blockers-and-calcium-channel-blockers-are-associated-with-prolonged-vascular-access-patency-in-uremic-patients-undergoing-hemodialysis
#5
Fu-An Chen, Chih-Chiang Chien, Yu-Wei Chen, Yu-Te Wu, Chih-Ching Lin
BACKGROUND: Vascular access failure is a huge burden for patients undergoing hemodialysis. Many efforts have been made to maintain vascular access patency, including pharmacotherapy. Angiotensin converting enzyme inhibitor (ACE-I), angiotensin receptor blocker (ARB), and calcium channel blocker (CCB) are known for their antihypertensive and cardio-protective effects, however, their effects on long-term vascular access patency are still inconclusive. DESIGN, SETTING, PARTICIPANTS AND MEASUREMENTS: We retrospectively enrolled patients commencing maintenance hemodialysis between January 1, 2000, and December 31, 2006 by using National Health Insurance Research Database in Taiwan...
2016: PloS One
https://www.readbyqxmd.com/read/27797894/monocyte-chemoattractant-protein-1-levels-and-postangioplasty-restenosis-of-arteriovenous-fistulas
#6
Chih-Cheng Wu, Tsung-Yan Chen, Mu-Yang Hsieh, Lin Lin, Chung-Wei Yang, Shao-Yuan Chuang, Der-Cheng Tarng
BACKGROUND AND OBJECTIVES: Inflammation is relevant in restenosis of atherosclerotic vascular diseases, but its role in dialysis arteriovenous fistula remains unknown. In animal studies, upregulation of monocyte chemoattractant protein-1 has been shown in venous segments of arteriovenous fistula. We, therefore, aimed to investigate serial changes in circulating monocyte chemoattractant protein-1 after percutaneous transluminal angioplasty of dialysis arteriovenous fistulas and its relation to restenosis...
October 26, 2016: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/27791257/assessing-radiocephalic-wrist-arteriovenous-fistulas-of-obtuse-anastomosis-using-computational-fluid-dynamics-and-clinical-application
#7
Jinkee Lee, Sunho Kim, Sung-Min Kim, Ryungeun Song, Hyun Kyu Kim, Jang Sang Park, Sun Cheol Park
INTRODUCTION: A radiocephalic arteriovenous fistula (AVF) is the best choice for achieving vascular access (VA) for hemodialysis, but this AVF has high rates of early failure due to juxta-anastomotic stenosis, making it impossible to use for dialysis. Low hemodynamic shear stress contributes to the pathophysiology of VA failure due to secondary thrombosis, stenosis, and re-occlusion after percutaneous intervention. METHODS: We used a computational fluid dynamics (CFDs) approach to evaluate the shear stress distribution and minimize its effects under various conditions including changes in the anastomosis angle...
November 2, 2016: Journal of Vascular Access
https://www.readbyqxmd.com/read/27790813/hemodialysis-practice-patterns-in-the-russia-dialysis-outcomes-and-practice-patterns-study-dopps-with-international-comparisons
#8
Boris Bikbov, Brian Bieber, Anton Andrusev, Natalia Tomilina, Alexander Zemchenkov, Junhui Zhao, Friedrich Port, Bruce Robinson, Ronald Pisoni
Introduction There is little comparable information about hemodialysis (HD) practices in low- and middle income countries, including Russia. Evaluation of HD in Russia and its international comparisons could highlight factors providing opportunities for improvement. Methods We examined treatment patterns for 481 prevalent HD patients in 20 Russian facilities, and compared them to contemporary data for 8512 patients from 311 facilities in seven European countries, Japan, and North America. Data were collected according to the uniform methodology of the Dialysis Outcomes and Practice Patterns Study, phase 5...
October 27, 2016: Hemodialysis International
https://www.readbyqxmd.com/read/27784005/circulating-progenitor-cells-affect-thrombosis-of-dialysis-arteriovenous-fistulas
#9
Tsung-Yan Chen, Ting-Tse Lin, Mu-Yang Hsieh, Lin Lin, Chung-Wei Yang, Shao-Yuan Chuang, Po-Hsun Huang, Chih-Cheng Wu
BACKGROUND: Arteriovenous fistula (AVF) thrombosis is a relevant cause of morbidity in hemodialysis (HD) patients. The number of circulating endothelial progenitor cells (EPCs) has been identified as a surrogate marker for vascular repair and health. Deficiency of EPCs has been demonstrated in dialysis patients to be associated with vascular events. Nonetheless, their role in thrombosis of AVFs remains unknown. METHODS: From January 2010 to May 2013, 147 HD patients with dysfunctional AVFs were enrolled...
October 27, 2016: American Journal of Nephrology
https://www.readbyqxmd.com/read/27781388/the-dialysis-outcomes-and-practice-patterns-study-dopps-in-turkey
#10
Tevfik Ecder, Cengiz Utas, Kenan Ates, Brian Bieber, Bruce M Robinson, Ronald L Pisoni, Gültekin Süleymanlar
Introduction Turkey has one of the largest treated end-stage renal disease (ESRD) patient populations in Europe (N = 66,711). In 2013, the international Dialysis Outcomes and Practice Patterns Study (DOPPS), a prospective study of hemodialysis (HD) practices and outcomes, initiated data collection in Turkey. Here we provide comparisons of HD patients in DOPPS-Turkey with other international regions and with patients in the Registry of Turkish Nephrology, Dialysis and Transplantation. Methods DOPPS-Turkey study sites were randomly selected from all Turkish HD units treating ≥25 in-center chronic HD patients...
October 25, 2016: Hemodialysis International
https://www.readbyqxmd.com/read/27743809/initial-clinical-experience-with-a-polytetrafluoroethylene-vascular-dialysis-graft-reinforced-with-nitinol-at-the-venous-end
#11
Filippo Benedetto, Domenico Spinelli, Narayana Pipitò, Giambattista Gagliardo, Alberto Noto, Simona Villari, Antonio David, Francesco Spinelli
OBJECTIVE: The purpose of this study was to examine the outcomes of a vascular hybrid polytetrafluoroethylene (PTFE) graft, provided with a nitinol-reinforced section (NRS) on one end, in hemodialysis vascular access placement. METHODS: A retrospective study was conducted including all the consecutive patients who underwent Gore Hybrid Vascular Graft (GHVG; W. L. Gore & Associates, Flagstaff, Ariz) implantation for hemodialysis access placement between October 2013 and November 2015...
October 12, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27738819/paclitaxel-coated-balloons-for-the-treatment-of-dysfunctional-dialysis-access-results-from-a-single-center-retrospective-analysis
#12
Panagiotis M Kitrou, Stavros Spiliopoulos, Panagiotis Papadimatos, Nicolaos Christeas, Theodoros Petsas, Konstantinos Katsanos, Dimitris Karnabatidis
PURPOSE: To investigate the safety and effectiveness of lutonix paclitaxel-coated balloon (PCB) for the treatment of dysfunctional dialysis access. MATERIALS AND METHODS: This was a single-center, single-arm, retrospective analysis of 39 patients (23 male, 59 %) undergoing 61 interventions using 69 PCBs in a 20-month period. There was a balance between arteriovenous fistulae (AVF) and grafts (AVG) (20 AVFs, 19AVGs), and the majority of lesions were restenotic (25/39, 64...
October 14, 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27692441/successful-hemodialysis-arteriovenous-fistula-creation-in%C3%A2-a%C3%A2-patient-with-continuous-flow-left-ventricular-assist-device%C3%A2-support
#13
Andrew I Chin, Kathleen Tong, John P McVicar
Heart failure necessitating left ventricular assist device (LVAD) support can lead to kidney failure requiring dialysis. Some of these patients may require long-term hemodialysis (HD). Optimal vascular access for a patient on long-term HD therapy with an LVAD remains a complex issue. The majority of LVADs are of the continuous-flow type, and it has been theorized that native arteriovenous fistula maturation may be impaired in a setting of decreased pulsatile arterial flow. We describe a case of successful creation and use of an arteriovenous fistula in an HD-dependent patient with a continuous-flow LVAD...
September 27, 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/27684071/arterio-venous-fistula-is-it-critical-for-prolonged-survival-in-the-over-80-s-starting-haemodialysis
#14
Adam D Jakes, Poonam Jani, Victoria Allgar, Archie Lamplugh, Ahmed Zeidan, Sunil Bhandari
BACKGROUND: Dialysis in elderly patients (>80-years-old) carries a poor prognosis, but little is known about the most effective vascular access method in this age group. An arteriovenous fistula (AVF) is both time-consuming and initially expensive, requiring surgical insertion. A central venous catheter (CVC) is initially a cheaper alternative, but carries a higher risk of infection. We examined whether vascular access affected 1-year and 2-year mortality in elderly patients commencing haemodialysis...
2016: PloS One
https://www.readbyqxmd.com/read/27679720/the-impact-of-haemodialysis-arteriovenous-fistula-on-haemodynamic-parameters-of-the-cardiovascular-system
#15
Carlo Basile, Luigi Vernaglione, Francesco Casucci, Pasquale Libutti, Piero Lisi, Luigi Rossi, Valentina Vigo, Carlo Lomonte
BACKGROUND: Satisfactory vascular access flow (Qa) of an arteriovenous fistula (AVF) is necessary for haemodialysis (HD) adequacy. The aim of the present study was to further our understanding of haemodynamic modifications of the cardiovascular system of HD patients associated with an AVF. The main objective was to calculate using real data in what way an AVF influences the load of the left ventricle (LLV). METHODS: All HD patients treated in our dialysis unit and bearing an AVF were enrolled into the present observational cross-sectional study...
October 2016: Clinical Kidney Journal
https://www.readbyqxmd.com/read/27678339/buttonhole-cannulation-of-the-av-fistula-a-critical-analysis-of-the-technique
#16
Pierpaolo Di Nicolò, Marina Cornacchiari, Marco Mereghetti, Anna Mudoni
As a consequence of the central role of the arteriovenous fistula for dialysis (AVF) in the clinical management of the dialysis patient the necessity to limit the puncture-related complications to extend as much as possible the life of the vascular access. Accordingly, the AVF needling technique has gained growing attention. Alongside the traditional rope ladder (RL) puncture method, the buttonhole technique (BH) is increasingly popular; this technique employs the same cannulation sites of AVF in every dialysis associated with the use of dull needles to minimize vessels damage...
September 27, 2016: Seminars in Dialysis
https://www.readbyqxmd.com/read/27669543/impact-of-vascular-access-intervention-therapy-on-cardiac-load-in-hemodialysis-patients
#17
Takayuki Adachi, Tsutomu Sakurada, Takanori Otowa, Keita Uehara, Shina Sueki, Shigeki Kojima, Nagayuki Kaneshiro, Katsuomi Matsui, Tadahisa Tomohiro, Yugo Shibagaki
Vascular access intervention therapy (VAIVT) has been positioned as the first choice of treatment for stenosis lesions frequently observed in arteriovenous fistula (AVF) for hemodialysis patients in Japan. Furthermore, increased blood flow can provide a stable dialysis. In contrast, it has been reported that excess blood flow of AVF causes high-output heart failure. Although VAIVT is used to increase blood flow of AVF, the impact of VAIVT on cardiac load has been rarely reported. We examined the factors associated with cardiac load in hemodialysis patients undergoing VAIVT by measuring levels of α human atrial natriuretic polypeptide (hANP) and brain natriuretic peptide (BNP) before and after VAIVT...
October 2016: Hemodialysis International
https://www.readbyqxmd.com/read/27660542/the-combination-of-sonography-and-physical-examination-improves-the-patency-and-suitability-of-hemodialysis-arteriovenous-fistula-in-vascular-access
#18
Normawati Mat Said, Kamarul Imran Musa, Mohamed Ashraf Mohamed Daud, Juhara Haron
PURPOSE: We compared the patency and the suitability of arteriovenous fistula (AVF) created for vascular access by two approaches: (a) physical examination with preoperative vascular mapping and (b) physical examination alone. METHODS: We compared the patency and the suitability of AVF created in patients for dialysis. There were two cohorts of patients of 79 patients each: (a) patients with AVF created based on the combination of physical examination and preoperative vascular mapping (PE+VM) and (b) patients with AVF created based on physical examination (PE) alone...
July 2016: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/27646927/surveillance-for-hemodialysis-access-stenosis-usefulness-of-ultrasound-vector-volume-flow
#19
Andreas H Brandt, Jonas Jensen, Kristoffer L Hansen, Peter Hansen, Theis Lange, Marianne Rix, Jørgen A Jensen, Lars Lönn, Michael B Nielsen
PURPOSE: To investigate if ultrasound vector-flow imaging (VFI) is equal to the reference method ultrasound dilution technique (UDT) in estimating volume flow and changes over time in arteriovenous fistulas (AVFs) for hemodialysis. MATERIALS AND METHODS: From January 2014 to January 2015, patients with end-stage renal disease and matured functional AVFs were consecutively solicited to participate in this prospective study. All patients were included after written informed consent and approval by the National Committee on Biomedical Research Ethics and the local Ethics Committee (journal no...
September 1, 2016: Journal of Vascular Access
https://www.readbyqxmd.com/read/27644118/very-low-protein-diets-supplemented-with-keto-analogues-in-esrd-predialysis-patients-and-its-effect-on-vascular-stiffness-and-avf-maturation
#20
Cristiana David, Ileana Peride, Andrei Niculae, Alexandra Maria Constantin, Ionel Alexandru Checherita
BACKGROUND: Native arteriovenous fistula (AVF) is the most appropriate type of vascular access for chronic dialysis. Its patency rates depend on vascular wall characteristics. Ketoacid analogues of essential amino acids (KA/EAA) are prescribed in end-stage renal disease (ESRD) pre-dialysis patients to lower toxic metabolic products generation and improve nutritional status. We hypothesized that very-low protein diet (VLPD) supplemented with KA/EAA may influence arterial wall stiffness and affect AVF maturation rates and duration in pre-dialysis ESRD patients...
September 20, 2016: BMC Nephrology
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