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Vascular access for hemodialysis

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https://www.readbyqxmd.com/read/29027182/preoperative-management-of-arteriovenous-fistula-avf-for-hemodialysis
#1
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/29023551/a-multilayered-electrospun-graft-as-vascular-access-for-hemodialysis
#2
D Radakovic, J Reboredo, M Helm, T Weigel, S Schürlein, E Kupczyk, R G Leyh, H Walles, J Hansmann
Despite medical achievements, the number of patients with end-stage kidney disease keeps steadily raising, thereby entailing a high number of surgical and interventional procedures to establish and maintain arteriovenous vascular access for hemodialysis. Due to vascular disease, aneurysms or infection, the preferred access-an autogenous arteriovenous fistula-is not always available and appropriate. Moreover, when replacing small diameter blood vessels, synthetic vascular grafts possess well-known disadvantages...
2017: PloS One
https://www.readbyqxmd.com/read/29016441/epidemiology-and-outcomes-of-infectious-spondylodiscitis-in-hemodialysis-patients
#3
Yueh-An Lu, Wei-Chiao Sun, George Kuo, Chao-Yu Chen, Huang-Kai Kao, YuJr Lin, Chia-Hui Lee, Cheng-Chieh Hung, Ya-Chung Tian, Yu-Shien Ko, Hsiang-Hao Hsu
STUDY DESIGN: A retrospective study of patients who were hospitalized for infectious spondylodiscitis over a 13 year period. OBJECTIVE: To elucidate the epidemiology and prognostic factors of infectious spondylodiscitis in hemodialysis (HD) patients and to identify the impact of HD on infectious spondylodiscitis. SUMMARY OF BACKGROUND DATA: Only a few case studies of infectious spondylodiscitis in HD patients can be found in the literature...
October 9, 2017: Spine
https://www.readbyqxmd.com/read/28958669/-infections-on-catheters-in-hemodialysis-temporal-fluctuations-of-the-infectious-risk
#4
S Izoard, L Ayzac, J Meynier, J-C Seghezzi, B Jolibois, M L Tolani
BACKGROUND: International guidelines recommend to limit the long-term use of central-veinous catheters in patients undergoing hemodialysis, because they expose the patient to a higher infectious risk than the fistulas. However, for some patients with comorbidity, switching to a permanent vascular access is not possible. In such case, the catheter is used for a longer period. It seems therefore important to study the influence of a prolonged duration of catheterization on infectious complications...
September 22, 2017: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/28937059/the-effect-of-an-educational-program-for-vascular-access-care-on-nurses-knowledge-at-dialysis-centers-in-khartoum-state-sudan
#5
Kalthoum Ibrahim Yousif, Hasan Abu-Aisha, Omar Ibrahim Abboud
End-stage renal disease is a worldwide problem that requires highly skilled nursing care. Hemodialysis (HD) is a corner-stone procedure in the management of most patients who require renal replacement therapy. Adequate vascular access is essential for the successful use of HD. Appropriate knowledge in taking care of vascular access is essential for minimizing complications and accurately recognizing vascular access-related problems. This study was to evaluate the effect of an educational program for vascular access care on nurses' knowledge at nine dialysis centers in Khartoum State...
September 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28930719/vascular-access-placement-order-and-outcomes-in-hemodialysis-patients-a-longitudinal-study
#6
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...
September 21, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28927232/association-between-intradialytic-central-venous-oxygen-saturation-and-ultrafiltration-volume-in-chronic-hemodialysis-patients
#7
Hanjie Zhang, Lili Chan, Anna Meyring-Wösten, Israel Campos, Priscila Preciado, Jeroen P Kooman, Frank M van der Sande, Doris Fuertinger, Stephan Thijssen, Peter Kotanko
Background: Cardiac disease is highly prevalent in hemodialysis (HD) patients. Decreased tissue perfusion, including cardiac, due to high ultrafiltration volumes (UFVs) is considered to be one of the drivers of cardiac dysfunction. While central venous oxygen saturation (ScvO 2 ) is frequently used as an indicator of cardiac output in non-uremic populations, the relationship of ScvO 2 and UFV in HD patients remains unclear. Our aim was to determine how intradialytic ScvO 2 changes associate with UFV...
September 12, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28912248/multi-disciplinary-vascular-access-care-and-access-outcomes-in-people-starting-hemodialysis-therapy
#8
Simardeep Gill, Robert Quinn, Matthew Oliver, Fareed Kamar, Rameez Kabani, Daniel Devoe, Priyanka Mysore, Neesh Pannu, Jennifer MacRae, Braden Manns, Brenda Hemmelgarn, Matthew James, Marcello Tonelli, Adriane Lewin, Ping Liu, Pietro Ravani
BACKGROUND AND OBJECTIVES: Fistulas, the preferred form of hemodialysis access, are difficult to establish and maintain. We examined the effect of a multidisciplinary vascular access team, including nurses, surgeons, and radiologists, on the probability of using a fistula catheter-free, and rates of access-related procedures in incident patients receiving hemodialysis. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We examined vascular access outcomes in the first year of hemodialysis treatment before (2004-2005, preteam period) and after the implementation of an access team (2006-2008, early-team period; 2009-2011, late-team period) in the Calgary Health Region, Canada...
September 14, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28912005/proximal-radial-artery-arteriovenous-fistula-for-hemodialysis-vascular-access
#9
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
#10
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/28893450/emergency-medicine-evaluation-and-management-of-the-end-stage-renal-disease-patient
#11
REVIEW
Brit Long, Alex Koyfman, Courtney M Lee
BACKGROUND: End stage renal disease (ESRD) is increasing in the U.S., and these patients demonstrate greater all-cause mortality, cardiovascular events, and hospitalization rates when compared to those with normal renal function. These patients may experience significant complications associated with loss of renal function and dialysis. OBJECTIVE: This review evaluates complications of ESRD including cardiopulmonary, neurologic, infectious disease, vascular, and access site complications, as well as medication use in this population...
September 5, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28887254/factors-affecting-patency-following-successful-percutaneous-intervention-for-dysfunctional-hemodialysis-vascular-access
#12
Sung Min Kim, Heung Kyu Ko, Minsu Noh, Gi-Young Ko, Min-Ju Kim, Tae-Won Kwon, Hee Jin Kim, Yong-Pil Cho
OBJECTIVE: 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/28868755/matrix-metalloproteinase-2-predicts-arteriovenous-fistula-failure-in-hemodialysis-patients
#13
Dacian Călin Tirinescu, Ciprian Tomuleasa, Laura Pop, Cosmina Ioana Bondor, Dan Ştefan Vlăduţiu, Ioan Mihai Paţiu, Crina Claudia Rusu, Diana Tania Moldovan, Alina Potra, Ina Maria Kacsó
In hemodialysis patients the principal cause of arteriovenous fistula dysfunction is stenosis. Matrix-metalloproteinase-2 is implicated in the pathophysiological mechanism of stenosis development. Our study tried to assess the clinical impact of this protease on arteriovenous fistula survival. Seventy-nine prevalent dialysis patients with functional arteriovenous fistulas were included in the study. The presence of stenosis and the serum levels of matrix-metalloproteinase-2 were determined at the beginning of the study...
September 3, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28868296/hemodialysis-arteriovenous-access-occlusion-using-the-amplatzer-vascular-plug-in-patients-with-intractable-arm-edema
#14
Michele Di Filippo, Danilo Barbarisi, Doriana Ferrara, Stefania Brancaccio, Luca Del Guercio, Renata Bracale, Alfredo Capuano, Giovanni Esposito, Umberto Marcello Bracale
OBJECTIVES: Vascular occlusion of hemodialysis arteriovenous access (AVA) using an Amplatzer vascular plug (AVP; St. Jude Medical, St. Paul, MN, USA) is an arising and alternative practice in selected patients; however, few reported cases can be found in the literature. Herein, we report on our experience with endovascular treatment of complicated AVA. MATERIALS AND METHODS: From September 2015 to December 2016, 3 patients at our clinic underwent an occlusion of hemodialysis AVA with 2 different Amplatzer vascular plugs: 2 patients with type II and 1 patient with type IV...
May 2017: Case Reports in Nephrology and Dialysis
https://www.readbyqxmd.com/read/28865977/safety-and-efficacy-of-polyurethane-vascular-grafts-for-early-hemodialysis-access
#15
John D Kakisis, Constantine Antonopoulos, George Mantas, Evaggelos Alexiou, Konstantina Katseni, George Sfyroeras, Konstantinos Moulakakis, George Geroulakos
BACKGROUND: Arteriovenous grafts made of polyurethane (PU) have the advantage of early cannulation obviating the placement of a central vein catheter in patients with an acute need for long-term hemodialysis. The aim of the present study was to evaluate the safety, efficacy and complication rate of PU vascular grafts for dialysis access in patients in whom early cannulation was performed. METHODS: Between January 2007 and December 2015, 125 straight brachial-axillary grafts were placed in patients with an acute thrombosis of a previous arteriovenous access...
August 30, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28865432/a-mixed-methods-investigation-of-incident-hemodialysis-access-in-a-safety-net-population
#16
Nicole C Rich, Shant M Vartanian, Shimi Sharief, Daniel J Freitas, Delphine S Tuot
BACKGROUND: Despite improved health outcomes associated with arteriovenous fistulas, 80% of Americans initiate hemodialysis using a catheter, influenced by low socioeconomic status among other factors. Risk factors for incident catheter use in safety-net populations are unknown. Our objective was to identify factors associated with incident catheter use among hemodialysis patients at one safety-net hospital, with a goal of informing fistula placement initiatives targeted at safety-net populations more generally...
September 2, 2017: BMC Nephrology
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/28854521/substitution-rate-based-screening-model-to-assess-stenosis-progression-in-experimental-stenotic-arteriovenous-grafts
#18
Chung-Dann Kan, Wei-Ling Chen, Chia-Hung Lin, Ming-Jui Wu, Yi-Chen Mai
An arteriovenous graft (AVG) has a higher patency rate in stenosis progression at the venous anastomosis site, which causes coexisting inflow and outflow stenoses. This leads to increases in blood pressure, flow velocity, and flow resistance, resulting in hemodialysis (HD) vascular access dysfunction from early clots and thrombosis to the progression of coexisting stenoses. To prevent vascular access complications such as inflow or outflow stenoses, this study proposes a novel examination method in an experimental AVG system using a substitution-rate based screening model...
August 15, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28844317/short-daily-nocturnal-and-conventional-home-hemodialysis-have-similar-patient-and-treatment-survival
#19
Karthik K Tennankore, Yingbo Na, Ron Wald, Christopher T Chan, Jeffrey Perl
Home hemodialysis (HHD) has many benefits, but less is known about relative outcomes when comparing different home-based hemodialysis modalities. Here, we compare patient and treatment survival for patients receiving short daily HHD (2-3 hours/5 plus sessions per week), nocturnal HHD (6-8 hours/5 plus sessions per week) and conventional HHD (3-6 hours/2-4 sessions per week). A nationally representative cohort of Canadian HHD patients from 1996-2012 was studied. The primary outcome was death or treatment failure (defined as a permanent return to in-center hemodialysis or peritoneal dialysis) using an intention to treat analysis and death-censored treatment failure as a secondary outcome...
August 23, 2017: Kidney International
https://www.readbyqxmd.com/read/28843984/arteriovenous-fistulae-for-haemodialysis-a-systematic-review-and-meta-analysis-of-efficacy-and-safety-outcomes
#20
REVIEW
L C Bylsma, S M Gage, H Reichert, S L M Dahl, J H Lawson
BACKGROUND: Arteriovenous fistulae are the currently recommended gold standard vascular access modality for haemodialysis because of their prolonged patency, improved durability, and low risk of infection for those that mature. However, notable disadvantages are observed in terms of protracted maturation time, associated high rates of catheter use, and substantial abandonment rates. The aim of this study was to quantitatively summarize the outcomes of fistula patency, infection, maturation, and abandonment published in the scientific literature...
October 2017: European Journal of Vascular and Endovascular Surgery
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