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Arteriovenous access

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https://www.readbyqxmd.com/read/28823140/pre-existing-arterial-pathologic-changes-affecting-arteriovenous-fistula-patency-and-cardiovascular-mortality-in-hemodialysis-patients
#1
Ja Young Lee, Young Ok Kim
The radiocephalic arteriovenous fistula (AVF) provides optimal vascular access for hemodialysis; it has a higher long-term patency rate and fewer complications than other vascular access methods. However, the AVF has a high primary failure rate. The presence of small-diameter vessels at anastomosis sites is an important risk factor for AVF failure. However, in a recent study, despite selecting an adequate artery and vein for creating an AVF by routine preoperative vascular mapping, AVF maturation and primary failure occurred...
August 22, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28822665/the-associations-of-hemodialysis-access-type-and-access-satisfaction-with-health-related-quality-of-life
#2
Natalie Domenick Sridharan, Larry Fish, Lan Yu, Steven Weisbord, Manisha Jhamb, Michel S Makaroun, Theodore H Yuo
OBJECTIVE: In addition to age and comorbidities, health-related quality of life (HRQOL) is known to predict mortality in hemodialysis (HD) patients. Understanding the association of vascular access type with HRQOL can help surgeons to provide patient-centered dialysis access recommendations. We sought to understand the impact of HD access type on HRQOL. METHODS: We conducted a cross-sectional prospective study of community-dwelling prevalent HD patients in Pittsburgh, Pennsylvania...
August 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28822538/smooth-muscle-nitric-oxide-responsiveness-and-clinical-maturation-of-hemodialysis-arteriovenous-fistulae
#3
Xiaoyong Tong, Xiuyun Hou, Christopher Wason, Tal Kopel, Richard A Cohen, Laura M Dember
The arteriovenous fistula is the preferred type of hemodialysis vascular access for patients with end-stage renal disease, but a high proportion of newly created fistulas fail to mature for use. Stenosis caused by neointimal hyperplasia often is present in fistulas with maturation failure, suggesting that local mechanisms controlling vascular smooth muscle cell (SMC) migration and proliferation are important contributors to maturation failure. SMCs cultured from explants of vein tissue obtained at the time of fistula creation from 19 patients with end-stage renal disease were studied to determine whether smooth muscle responsiveness to nitric oxide is associated with fistula maturation outcomes...
August 16, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28805538/effects-of-far-infrared-therapy-on-arteriovenous-fistulas-in-hemodialysis-patients-a-meta-analysis
#4
Qingsong Wan, Shikun Yang, Li Li, Fenfen Chu
BACKGROUND: Far infrared (FIR) therapy may have a beneficial effect on maturity and function of arteriovenous fistulas (AVFs) in hemodialysis (HD) patients. Therefore, we performed this pooled analysis to assess the protective effects of FIR therapy in HD patients. METHODS: The randomized controlled trials (RCTs) and quasi-RCTs of FIR therapy for HD patients were searched from multiple databases. Relevant studies were screened according to the predefined inclusion criteria...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28804237/aneurysmal-degeneration-of-the-brachial-artery-after-vascular-access-creation-surgical-treatment-results
#5
Sérgio Teixeira, Pedro Sá Pinto, Carlos Veiga, Ivone Silva, Rui Almeida
True peripheral artery aneurysms proximal to a longstanding arteriovenous fistula is a well-recognized complication. Late aneurysmal degeneration is rare. This study analyzed the characteristics, therapeutic options, and outcomes of true donor brachial artery aneurysms (DBAA) after arteriovenous fistula (AVF) for hemodialysis. We retrospectively collected the data of patients with DBAA after AVF creation, surgically repaired between January 2001 and September 2015. We excluded patients with pseudoaneurysms, anastomotic aneurysms, and infected aneurysms...
September 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28800839/outcomes-of-intervention-for-cephalic-arch-stenosis-in-brachiocephalic-arteriovenous-fistulas
#6
Mark G Davies, Taylor D Hicks, George M Haidar, Hosam F El-Sayed
BACKGROUND: Development of recalcitrant stenotic lesions of the cephalic arch is a significant cause of dysfunction of brachiocephalic access arteriovenous fistulas (AVFs). Endovascular and surgical therapy can be used to treat cephalic arch stenosis. The aim of this study was to evaluate the outcomes of endovascular and surgical interventions for cephalic arch stenosis. METHODS: A retrospective review of all patients during a 16-year period with a compromised but not occluded brachiocephalic AVF due to cephalic arch stenosis was undertaken...
August 8, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28798220/vascular-access-type-and-clinical-outcomes-among-elderly-patients-on-hemodialysis
#7
Timmy Lee, Mae Thamer, Qian Zhang, Yi Zhang, Michael Allon
BACKGROUND AND OBJECTIVES: The optimal type of initial permanent access for hemodialysis among the elderly is controversial. Duration of central venous catheter dependence, patient comorbidities, and life expectancy are important considerations in whether to place an arteriovenous fistula or graft. We used an observational study design to compare clinical outcomes in elderly patients who initiated hemodialysis with a central venous catheter and subsequently had an arteriovenous fistula or graft placed...
August 10, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28794652/stent-tunnel-technique-to-save-thrombosed-native-hemodialysis-fistula-with-extensive-venous-aneurysm
#8
Martin Rabellino, Guillermo J Rosa-Diez, Sergio A Shinzato, Pablo Rodriguez, Oscar A Peralta, Maria S Crucelegui, Rosario Luxardo, Agustina Heredia-Martinez, Mariela I Bedini-Rocca, Ricardo D García-Mónaco
INTRODUCTION AND PURPOSE: The increasing number of patients undergoing hemodialysis and the limited number of access sites have resulted in an increasing number of techniques to maintain vascular access for hemodialysis. Thrombosed arteriovenous (AV) fistulas with large venous aneurysms have poor treatment results, with both endovascular and surgical techniques, leading to a high rate of definitive AV access loss. The purpose of this study was to review the feasibility and initial results of this novel endovascular treatment of thrombosed AV fistulas with large venous aneurysms...
2017: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/28789817/results-of-stent-graft-placement-to-treat-cephalic-arch-stenosis-in-hemodialysis-patients-with-dysfunctional-brachiocephalic-arteriovenous-fistulas
#9
Robert G Jones, Andrew P Willis, Karen Tullett, Peter L Riley
PURPOSE: To determine effectiveness of the VIABAHN (W.L. Gore & Associates, Flagstaff, Arizona) stent graft to treat cephalic arch stenosis in patients with dysfunctional brachiocephalic arteriovenous fistulas after inadequate venoplasty response. MATERIALS AND METHODS: Between 2012 and 2015, patients with failed venoplasty of symptomatic cephalic arch stenosis received a VIABAHN stent graft. Follow-up venography was performed at approximately 3, 6, and 12 months...
August 5, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28782257/how-to-perform-extracorporeal-photopheresis-via-port-catheter
#10
Katharina Schwede, Stephanie Nagel, Jan-Christoph Simon, Mirjana Ziemer
BACKGROUND: Extracorporeal photopheresis (ECP) is commonly performed via peripheral venous access catheter. If this is not possible, a tunneled central venous catheter may be considered. However, this access mode may be associated with high complication rates. Port catheters and permanent arteriovenous fistulas in principle could serve as alternative options; however, treatment opinions are limited. STUDY DESIGN AND METHODS: We report on four adult patients with poor peripheral vein conditions in whom we performed ECP via port catheter...
August 7, 2017: Transfusion
https://www.readbyqxmd.com/read/28779788/transjugular-venous-approach-for-endovascular-intervention-in-upper-extremity-dialysis-access-fistulae-and-grafts
#11
REVIEW
Hector Ferral, Marc J Alonzo
A transjugular venous access is an alternative approach for endovascular intervention in upper-extremity dialysis arteriovenous fistulae and grafts. The transjugular access is recommended for patients who have an unfavorable anatomy for the direct arm access approach. Ultrasound evaluation of the arteriovenous access is essential before intervention and includes evaluation of the inflow artery and outflow vein diameters, arteriovenous anastomosis, and the entire outflow vein, specifically looking into potential problem areas...
December 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/28779786/lack-of-evidence-for-use-of-heparin-bonded-grafts-in-access-surgery-a-meta-analysis
#12
REVIEW
M K Lazarides, C Argyriou, G A Antoniou, E Georgakarakos, G S Georgiadis
The aim of this study was to evaluate the efficacy of heparin-bonded vascular grafts to offer improved outcomes compared with standard prosthetic grafts in access surgery. A systematic review and meta-analysis was performed and eight studies (seven observational studies and one randomized controlled trial) were included. The pooled 6-month and 1-year primary patency was not significantly different between heparin-bonded arteriovenous (AV) grafts and standard prosthetic AV grafts in seven studies reporting on 1,209 access procedures...
December 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/28779785/symptomatic-superior-vena-cava-syndrome-in-hemodialysis-patients-mid-term-results-of-primary-stenting
#13
Mafalda Massara, Giovanni De Caridi, Antonino Alberti, Pietro Volpe, Francesco Spinelli
This clinical report details the results of endovascular treatment of symptomatic superior vena cava syndrome due to central vein stenosis or obstruction (CVSO) by stent angioplasty in patients with dialysis-dependent end-stage renal disease. A 3-year retrospective review of two institutional registries identified 25 chronic hemodialysis patients (17 men, 8 women) affected by CVSO who received endovascular treatment. The majority of the patients (n = 19) presented with symptomatic arm, breast, and facial swelling; and 6 patients presented with dialysis-access dysfunction and venous-line hypertension...
December 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/28779784/drug-coated-balloon-angioplasty-for-dialysis-access-fistula-stenosis
#14
REVIEW
Auréline Boitet, Ziad A Massy, Olivier Goeau-Brissonniere, Isabelle Javerliat, Marc Coggia, Raphaël Coscas
Maintaining vascular access patency represents a tremendous challenge in hemodialysis patients. Although "native" arteriovenous fistula (AVF) is currently recommended as primary vascular access, neointimal hyperplasia stenoses frequently develop, with a risk for AVF thrombosis and vascular access loss. For years, first-line treatment of AVFs stenoses has been percutaneous transluminal angioplasty, generally with high-pressure or cutting uncoated balloons. However, restenosis and reintervention rates remain incredibly high and occur, according to recent studies, in up to 60% and 70% of patients at 6 and 12 months, respectively...
December 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/28779782/future-research-directions-to-improve-fistula-maturation-and-reduce-access-failure
#15
REVIEW
Haidi Hu, Sandeep Patel, Jesse J Hanisch, Jeans M Santana, Takuya Hashimoto, Hualong Bai, Tambudzai Kudze, Trenton R Foster, Jianming Guo, Bogdan Yatsula, Janice Tsui, Alan Dardik
With the increasing prevalence of end-stage renal disease, there is a growing need for hemodialysis. Arteriovenous fistulae (AVF) are the preferred type of vascular access for hemodialysis, but maturation and failure continue to present significant barriers to successful fistula use. AVF maturation integrates outward remodeling with vessel wall thickening in response to drastic hemodynamic changes in the setting of uremia, systemic inflammation, oxidative stress, and pre-existent vascular pathology. AVF can fail due to both failure to mature adequately to support hemodialysis and development of neointimal hyperplasia that narrows the AVF lumen, typically near the fistula anastomosis...
December 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/28777417/outcomes-of-three-types-of-native-arteriovenous-fistula-in-a-single-center
#16
Emiliano Chisci, Linda M Harris, Francesco Menici, Pierfrancesco Frosini, Eugenio Romano, Nicola Troisi, Leonardo Ercolini, Stefano Michelagnoli
OBJECTIVE: To study the outcomes of three different types of native arteriovenous fistula (AVF), the distal (D: radial-cephalic), middle-arm (MA: radial-cephalic) and proximal (P: brachial-cephalic) AVF access creation for hemodialysis patients in a single center. METHODS: An 8-year retrospective review, from 2006 to 2014, was conducted at a single institution in which the surgical outcomes for three different types of native AVF creation were reviewed. Preoperative duplex vein mapping was obtained in all patients to choose the best vein and site for access...
July 26, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28777413/proximal-ulnar-artery-arteriovenous-fistula-inflow-is-an-uncommon-but-useful-vascular-access-option
#17
William C Jennings, Alexandros Mallios
INTRODUCTION: A proximal ulnar artery arteriovenous fistula (PUA-AVF) is a logical vascular access option when the distal ulnar artery is occluded or inadequate in addition to other specific vascular anatomic variants. This study reviews a series of patients where the proximal ulnar artery was used for AVF inflow in establishing a reliable autogenous access for these uncommon patients. MATERIALS AND METHODS: All new patients referred for vascular access with a PUA-AVF created during an eight-year period were evaluated...
July 27, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28777411/algorithmic-salvage-techniques-in-non-maturing-radiocephalic-arteriovenous-fistulae-with-their-long-term-patency
#18
Ali Kordzadeh, Yiannis P Panayiotopolous
INTRODUCTION: The aim of this study is to examine the role of five different operative salvage techniques with their long-term primary patency (PP) in an algorithmic manner in gaining primary functional maturation (FM) in radio cephalic arteriovenous fistulae (RCAVF) formation following their impairment. METHODS: A prospective consecutive data collection on 195 patients undergoing only autogenous RCAVF formation from July 2013 to December 2015 was conducted. Each non-maturing fistula was then exposed to a salvage technique by an algorithmic methodology and their FM and PP was prospectively recorded...
July 26, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28777408/authors-response-to-comments-on-the-dril-procedure-for-arteriovenous-access-ischemic-steal-a-controversial-approach
#19
Ingemar Davidson, Gerry Beathard, Maurizio Gallieni, John Ross
No abstract text is available yet for this article.
July 26, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28777407/management-of-hypertension-in-patients-during-percutaneous-dialysis-access-interventions
#20
Bhavika V Gandhi, Tejas B Patel, Eric J Costanzo, Avais Masud, Sushil Mehandru, Loay Salman
Not infrequently, interventionalists are faced with a patient with increased blood pressure who is about to undergo a dialysis access intervention such as tunneled hemodialysis catheter, percutaneous balloon angioplasty, or declotting procedure for a clotted arteriovenous access. This can frequently create a dilemma as functional dialysis access is needed to provide dialysis therapy and delaying treatment could result in a life-threatening situation, particularly in the presence of hyperkalemia. This article investigates hypertension in patients undergoing percutaneous dialysis access interventions and provides guidance to their management...
July 27, 2017: Journal of Vascular Access
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