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AVF for hemodialysis

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https://www.readbyqxmd.com/read/29133876/eph-b4-regulates-adaptive-venous-remodeling-to-improve-arteriovenous-fistula-patency
#1
Clinton D Protack, Trenton R Foster, Takuya Hashimoto, Kota Yamamoto, Monica Y Lee, Jan R Kraehling, Hualong Bai, Haidi Hu, Toshihiko Isaji, Jeans M Santana, Mo Wang, William C Sessa, Alan Dardik
Low rates of arteriovenous fistula (AVF) maturation prevent optimal fistula use for hemodialysis; however, the mechanism of venous remodeling in the fistula environment is not well understood. We hypothesized that the embryonic venous determinant Eph-B4 mediates AVF maturation. In human AVF and a mouse aortocaval fistula model, Eph-B4 protein expression increased in the fistula vein; expression of the arterial determinant Ephrin-B2 also increased. Stimulation of Eph-B-mediated signaling with Ephrin-B2/Fc showed improved fistula patency with less wall thickness...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29130577/factors-affecting-the-patency-of-arteriovenous-fistulas-for-hemodialysis-single-center-experience
#2
Radojica V Stolic, Goran Z Trajkovic, Mirjana M Kostic, Branko Mihailovic, Aleksandar N Jovanovic, Bratislav D Lazic, Ivana R Matijasević, Maša D Jaksić, Zlatica M Mirkovic, Tanja N Smilic, Javorka S Mitic
INTRODUCTION: Arteriovenous fistulas (AVFs) are the preferred form vascular access for hemodialysis (HD), as they have a low rate of complications and durable function. The aim of our investigation was to analyze the factors that might influence the function of AVFs. METHODS: Data were taken from the computerized patient record system in the Clinic of Urology and Nephrology, Clinical Center, Kragujevac, Serbia, for a 2-year period. We analyzed patients who had requested re-creation of AVFs as a secondary procedure...
November 12, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/29127555/continuous-monitoring-of-blood-pressure-by-analyzing-the-blood-flow-sound-of-arteriovenous-fistula-in-hemodialysis-patients
#3
Yuka Kamijo, Eiichiro Kanda, Hayato Horiuchi, Noriyuki Kounoue, Keisuke Ono, Keizo Maeda, Akane Yanai, Kazuya Honda, Ryuji Tsujimoto, Mai Yanagi, Yoshitaka Ishibashi, Masayuki Yoshida
BACKGROUND: Patients with end-stage renal disease undergoing hemodialysis (HD) have an elevated risk of cardiovascular disease-related morbidity and mortality. To prevent from such a life-threatening event, the continuous blood pressure (BP) monitoring system may contribute to detect BP decline in early stages and may help to do appropriate disposal. Our research team has introduced an electronic stethoscope (Asahi Kasei Co, Ltd., Tokyo, Japan), which translates sound intensity of Arteriovenous Fistula (AVF) to BP data using the technique of Fourier transformation that can predict continuous BP non-invasively...
November 10, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29123006/outcomes-of-simultaneous-peritoneal-dialysis-and-arteriovenous-fistula-placement-in-end-stage-renal-disease-patients
#4
Nosratollah Nezakatgoo, Albert Ndzengue, Manhunath Ramaiah, Elvira O Gosmanova
Peritoneal dialysis (PD) interruption requiring hemodialysis (HD) is not uncommon and its frequently abrupt nature prevents timely creation of permanent HD access and avoidance of central venous catheters (CVC). We retrospectively studied a cohort of 24 end-stage renal disease (ESRD) patients (mean age 50.7 years, 83.3% African-Americans, 58.3% females, time on dialysis interquartile range [IQR] 0 - 65 days) who had simultaneous PD catheter insertion and backup arteriovenous fistula (AVF) creation between January 1, 2012, and December 31, 2013...
November 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/29112475/transjugular-venous-approach-for-endovascular-interventions-in-hemodialysis-grafts-and-fistulas-of-the-upper-extremities
#5
Hector Ferral, Marc J Alonzo
OBJECTIVE: This article describes the use of a transjugular venous access for interventions in upper extremity hemodialysis arteriovenous fistulas (AVFs) and grafts. This access is used in selected patients in whom direct puncture of the hemodialysis access is considered to be difficult or cumbersome. Technical success was achieved in 96.7% of patients. If an intervention is unsuccessful, the transjugular access offers the possibility of placement of a dialysis catheter for temporary or long-term hemodialysis...
November 7, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29104939/asymmetric-dimethylarginine-does-not-predict-early-access-events-in-hemodialysis-patients-with-brachiocephalic-fistula-access
#6
Mary Hammes, Rita McGill, Promila Dhar, Rama S Madhurapantula
Background: Vascular access for hemodialysis is best provided by an arteriovenous fistula (AVF). AVF fail primarily because of neointimal hyperplasia. Asymmetric dimethlyarginine (ADMA) is a naturally occurring analogue of L-arginine, which is elevated in renal failure and impairs endothelial cell function. ADMA inhibits nitric oxide synthetase, leading to impaired nitric oxide production and contributing to the development of neointimal hyperplasia. ADMA was measured at the time of AVF placement to evaluate associations with access failure...
August 2017: Int J Nephrol Kidney Fail
https://www.readbyqxmd.com/read/29057732/effect-of-systemic-immunosuppressive-drugs-on-the-patency-of-hemodialysis-accesses%C3%A2
#7
Hanbyul Lee, Hyangkyoung Kim, Tae-Won Kwon, Yong-Pil Cho, Hyun Kang
AIM: Intimal hyperplasia remains the leading cause of late hemodialysis access stenosis or occlusion. This study assessed the influence of conventional immunosuppressive drugs on the patency of hemodialysis accesses in patients with a history of organ transplantation. MATERIALS AND METHODS: Between January 2002 and December 2007, 1,654 patients underwent an operation for hemodialysis access. 135 patients received immunosuppressive therapy (IT); of these, 115 underwent an operation for hemodialysis access after transplanted graft failure and 20 patients after liver transplantation...
October 23, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/29027182/preoperative-management-of-arteriovenous-fistula-avf-for-hemodialysis
#8
Gaetano Alfano, Francesco Fontana, Mario Iannaccone, Patrizia Noussan, Gianni Cappelli
Native arteriovenous fistula (AVF) is the favorite access for hemodialysis (HD). The National Kidney Foundation's Kidney Disease Outcomes Quality Initiative (KDOQI) recommends its creation in most patients with renal failure. Unfortunately, intensive efforts to promote native AVF in patients with marginal vessels have increased the rate of primary fistula failure. A non-functioning fistula prompts the use of central venous catheter (CVC) that, unlike AVF, has been associated with an increased risk of morbidity and mortality among patients receiving HD...
October 11, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/29017808/a-novel-technique-for-duplex-guided-office-based-interventions-for-patients-with-acute-arteriovenous-fistula-occlusion
#9
Afsha Aurshina, Enrico Ascher, Anil Hingorani, Natalie Marks
OBJECTIVE: The purpose of the study was to aggressively salvage acutely occluded arteriovenous fistulas (AVFs) using duplex imaging as the sole imaging modality for percutaneous transluminal angioplasty of acutely thrombosed AVF. METHODS: Over a period of 12 months, 14 patients with acute thrombosis of their AVFs underwent 18 procedures in a single center for AVF salvage. All 14 patients presented with chronic renal failure, and six were diabetic. All patients were treated under duplex guidance alone...
October 7, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28960860/impact-of-statins-on-arteriovenous-fistulas-outcomes-a-meta-analysis
#10
Qingsong Wan, Li Li, Shikun Yang, Fenfen Chu
Statins are effective lipid-lowering drugs with beneficial pleiotropic effects for vascular remodeling processes, statins may have a beneficial effect on the function of arteriovenous fistulas (AVFs) in hemodialysis (HD) patients. Therefore, we performed this systematic review to assess the protective effects of statin therapy in HD patients. The randomized controlled trials (RCTs) or quasi-RCTs and retrospective cohort studies (RCS) of statin therapy for the function of AVFs in HD patients were searched from multiple databases...
September 28, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28930719/vascular-access-placement-order-and-outcomes-in-hemodialysis-patients-a-longitudinal-study
#11
Mariana Murea, W Mark Brown, Jasmin Divers, Shahriar Moossavi, Todd W Robinson, Benjamin Bagwell, John M Burkart, Barry I Freedman
BACKGROUND: Arteriovenous accesses (AVA) in patients performing hemodialysis (HD) are labeled "permanent" for AV fistulas (AVF) or grafts (AVG) and "temporary" for tunneled central venous catheters (TCVC). Durability and outcomes of permanent vascular accesses based on the sequence in which they were placed or used receives little attention. This study analyzed longitudinal transitions between TCVC-based and AVA-based HD outcomes according to the order of placement. METHODS: All 391 patients initiating chronic HD via a TCVC between 2012 and 2013 at 12 outpatient academic dialysis units were included in this study...
2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28912005/proximal-radial-artery-arteriovenous-fistula-for-hemodialysis-vascular-access
#12
William C Jennings, Alexandros Mallios, Nasir Mushtaq
OBJECTIVE: This study reviewed our experience with proximal radial artery-based arteriovenous fistulas (PRA-AVFs) for hemodialysis vascular access, evaluating characteristics of the patients, functional patency, risk of steal syndrome, survival of the patient, and technical considerations. METHODS: We retrospectively analyzed our database of consecutive patients, identifying those individuals with a PRA-AVF created during a 12-year period. In addition to physical examination, all patients underwent ultrasound vessel mapping by the operating surgeon, identifying the PRA-AVF configuration and outflow target most likely to succeed...
September 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28904934/comparison-of-complications-of-arteriovenous-fistula-with-permanent-catheter-in-hemodialysis-patients-a-six-month-follow-up
#13
Ali Momeni, Saeed Mardani, Maryam Kabiri, Masoud Amiri
BACKGROUND: Arteriovenous fistula (AVF), permanent catheter (PC), and vascular graft are three vascular access types used for hemodialysis procedure. Due to insufficient reliable information on the comparison between AVF and PC, this study was conducted to compare AVF and PC regarding dialysis adequacy. MATERIALS AND METHODS: This prospective study was carried out from March, 2013 to September, 2013. In this study, 76 hemodialysis patients were enrolled and assigned to two unequal groups of AVF and PC...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28887265/modified-staple-aneurysmorrhaphy-for-treating-arteriovenous-fistula-related-venous-aneurysms
#14
Robert Moskowitz, Elias Fakhoury, Kevin V James
Autogenous arteriovenous fistulas (AVFs) are the preferred access for hemodialysis. AVF occasionally develop venous aneurysms, and we report a modified staple aneurysmorrhaphy technique for treatment. Briefly, the lateral wall of the venous aneurysm is dissected and a longitudinal staple resection performed. Adjunct procedures include inflow banding and outflow venous angioplasty with possible stenting. In this initial experience, 20 aneurysms were resected in 17 patients. The average AVF age at time of repair was 5...
September 6, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28887254/factors-affecting-patency-following-successful-percutaneous-intervention-for-dysfunctional-hemodialysis-vascular-access
#15
Sung Min Kim, Heung Kyu Ko, Minsu Noh, Gi-Young Ko, Min-Ju Kim, Tae-Won Kwon, Hee Jin Kim, Yong-Pil Cho
BACKGROUND: This study aimed to investigate the patency following initial successful percutaneous transluminal angioplasty (PTA) for untreated dysfunctional hemodialysis vascular access and to identify predictors of PTA durability. METHODS: This retrospective observational study included data of 132 consecutive initial PTA of hemodialysis vascular access in 126 patients who showed immediate technical and clinical success and had at least 1 year of follow-up data...
September 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28869934/typical-hemodialysis-in-india-a-case-report
#16
Georgi Abraham, Madhusudan Vijayan, Milly Mathew
We report here a typical case of a patient on hemodialysis (HD) for end-stage renal disease (ESRD) in India that highlights some of the management issues encountered in a country with an enormous burden of ESRD and major challenges of underdialysis and management of comorbidities. The patient, a 42-year-old multiparous woman with chronic kidney disease (CKD) stage V, type 2 diabetes mellitus, and hypertension is a homemaker from a middle-class family, living in a large city, with no family history of CKD. From May 2013 to December 2016, she has been receiving twice-weekly maintenance HD for 4 h (intermittent HD); access was via an internal jugular line initially and then via a left brachiocephalic arteriovenous fistula (AVF) from late June 2013...
2017: Blood Purification
https://www.readbyqxmd.com/read/28860634/deficiency-of-tlr4-homologue-rp105-aggravates-outward-remodeling-in-a-murine-model-of-arteriovenous-fistula-failure
#17
Taisiya Bezhaeva, ChunYu Wong, Margreet R de Vries, Eric P van der Veer, Carla M A van Alem, Ivo Que, Reshma A Lalai, Anton-Jan van Zonneveld, Joris I Rotmans, Paul H A Quax
Arteriovenous access dysfunction is a major cause of morbidity for hemodialysis patients. The pathophysiology of arteriovenous fistula (AVF) maturation failure is associated with inflammation, impaired outward remodeling (OR) and intimal hyperplasia. RP105 is a critical physiologic regulator of TLR4 signaling in numerous cell types. In the present study, we investigated the impact of RP105 on AVF maturation, and defined cell-specific effects of RP105 on macrophages and vascular smooth muscle cells (VSMCs). Overall, RP105(-/-) mice displayed a 26% decrease in venous OR...
August 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28823140/pre-existing-arterial-pathologic-changes-affecting-arteriovenous-fistula-patency-and-cardiovascular-mortality-in-hemodialysis-patients
#18
REVIEW
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...
September 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
#19
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/28805538/effects-of-far-infrared-therapy-on-arteriovenous-fistulas-in-hemodialysis-patients-a-meta-analysis
#20
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
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