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Vascular Access

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29 papers 25 to 100 followers
By Isabel Acosta-Ochoa Nephrology senior staff. Valladolid. Spain
https://www.readbyqxmd.com/read/28844205/ultrasound-guided-central-venous-catheter-placement-a-structured-review-and-recommendations-for-clinical-practice
#1
REVIEW
Bernd Saugel, Thomas W L Scheeren, Jean-Louis Teboul
The use of ultrasound (US) has been proposed to reduce the number of complications and to increase the safety and quality of central venous catheter (CVC) placement. In this review, we describe the rationale for the use of US during CVC placement, the basic principles of this technique, and the current evidence and existing guidelines for its use. In addition, we recommend a structured approach for US-guided central venous access for clinical practice. Static and real-time US can be used to visualize the anatomy and patency of the target vein in a short-axis and a long-axis view...
August 28, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28865432/a-mixed-methods-investigation-of-incident-hemodialysis-access-in-a-safety-net-population
#2
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/28724774/histopathology-of-veins-obtained-at-hemodialysis-arteriovenous-fistula-creation-surgery
#3
Charles E Alpers, Peter B Imrey, Kelly L Hudkins, Tomasz A Wietecha, Milena Radeva, Michael Allon, Alfred K Cheung, Laura M Dember, Prabir Roy-Chaudhury, Yan-Ting Shiu, Christi M Terry, Alik Farber, Gerald J Beck, Harold I Feldman, John W Kusek, Jonathan Himmelfarb
Stenosis from venous neointimal hyperplasia is common in native arteriovenous fistulas (AVFs). However, the preexisting histologic characteristics of veins at fistula creation, and associations thereof with baseline patient factors, have not been well characterized. In this study, we conducted histologic analysis of a segment of the vein used for anastomosis creation, obtained during AVF creation from 554 of the 602 participants in the multicenter Hemodialysis Fistula Maturation Cohort Study. We quantified intimal and medial areas and lengths of the internal and external elastic lamina by morphometry and assessed venous wall cells by immunohistochemistry, extracellular matrix with Movat stain, and calcium deposition by alizarin red stain...
July 19, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28729382/recommended-clinical-trial-end-points-for-dialysis-catheters
#4
Michael Allon, Deborah J Brouwer-Maier, Kenneth Abreo, Kevin M Baskin, Kay Bregel, Deepa H Chand, Andrea M Easom, Leonard Mermel, Michele H Mokrzycki, Priti R Patel, Prabir Roy-Chaudhury, Surendra Shenoy, Rudolph P Valentini, Haimanot Wasse
Central venous catheters are used frequently in patients on hemodialysis as a bridge to a permanent vascular access. They are prone to frequent complications, including catheter-related bloodstream infection, catheter dysfunction, and central vein obstruction. There is a compelling need to develop new drugs or devices to prevent central venous catheter complications. We convened a multidisciplinary panel of experts to propose standardized definitions of catheter end points to guide the design of future clinical trials seeking approval from the Food and Drug Administration...
July 20, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28729383/definitions-and-end-points-for-interventional-studies-for-arteriovenous-dialysis-access
#5
Gerald A Beathard, Charmaine E Lok, Marc H Glickman, Ahmed A Al-Jaishi, Donna Bednarski, David L Cull, Jeffery H Lawson, Timmy C Lee, Vandana D Niyyar, Donna Syracuse, Scott O Trerotola, Prabir Roy-Chaudhury, Surendra Shenoy, Margo Underwood, Haimanot Wasse, Karen Woo, Theodore H Yuo, Thomas S Huber
This paper is part of the Clinical Trial Endpoints for Dialysis Vascular Access Project of the American Society of Nephrology Kidney Health Initiative. The purpose of this project is to promote research in vascular access by clarifying trial end points which would be best suited to inform decisions in those situations in which supportive clinical data are required. The focus of a portion of the project is directed toward arteriovenous access. There is a potential for interventional studies to be directed toward any of the events that may be associated with an arteriovenous access' evolution throughout its life cycle, which has been divided into five distinct phases...
July 20, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28685192/venous-thrombosis-and-stenosis-after-peripherally-inserted-central-catheter-placement-in-children
#6
H Stella Shin, Alexander J Towbin, Bin Zhang, Neil D Johnson, Stuart L Goldstein
BACKGROUND: Peripherally inserted central catheters (PICCs) can lead to development of venous thrombosis and/or stenosis. The presence of venous thrombosis and/or stenosis may preclude children with chronic medical conditions from receiving lifesaving therapies, from hemodialysis in end-stage renal disease to total parenteral nutrition in short bowel syndrome. Several adult studies have found an association between PICCs and venous thrombosis and/or stenosis, but none has evaluated for this association in children...
July 6, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28705077/fifty-years-of-hemodialysis-access-literature-the-fifty-most-cited-publications-in-the-medical-literature
#7
Edvard Skripochnik, David J O'Connor, Eric B Trestman, Evan C Lipsitz, Larry A Scher
Objectives The modern era of hemodialysis access surgery began with the publication in 1966 by Brescia et al. describing the use of a surgically created arteriovenous fistula. Since then, the number of patients on chronic hemodialysis and the number of publications dealing with hemodialysis access have steadily increased. We have chronicled the increase in publications in the medical literature dealing with hemodialysis access by evaluating the characteristics of the 50 most cited articles. Methods We queried the Science Citation Index from the years 1960-2014...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28710091/intimal-hyperplasia-stenosis-and-arteriovenous-fistula-maturation-failure-in-the-hemodialysis-fistula-maturation-study
#8
Alfred K Cheung, Peter B Imrey, Charles E Alpers, Michelle L Robbin, Milena Radeva, Brett Larive, Yan-Ting Shiu, Michael Allon, Laura M Dember, Tom Greene, Jonathan Himmelfarb, Prabir Roy-Chaudhury, Christi M Terry, Miguel A Vazquez, John W Kusek, Harold I Feldman
Intimal hyperplasia and stenosis are often cited as causes of arteriovenous fistula maturation failure, but definitive evidence is lacking. We examined the associations among preexisting venous intimal hyperplasia, fistula venous stenosis after creation, and clinical maturation failure. The Hemodialysis Fistula Maturation Study prospectively observed 602 men and women through arteriovenous fistula creation surgery and their postoperative course. A segment of the vein used to create the fistula was collected intraoperatively for histomorphometric examination...
July 14, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28486776/ultrasound-guided-cannulation-of-the-hemodialysis-arteriovenous-access
#9
Frank Ward, Rose Faratro, Rory F McQuillan
Successful cannulation of the arteriovenous access for patients with end-stage kidney failure to allow catheter-free hemodialysis is associated with superior patient outcomes. With an increasing rate of arteriovenous access creation, coupled with increasing dialysis patient age, the "difficult-to-cannulate" access is becoming more commonplace. Ultrasound-guided cannulation aims to improve first-time successful cannulations and minimize cannulation-associated complications such as infiltration and hematoma formation, minimizing delays in access use and reducing catheter dependency...
July 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28443283/vascular-access-site-for-renal-replacement-therapy-in-acute-kidney-injury-a-post-hoc-analysis-of-the-atn-study
#10
Yue-Harn Ng, Kavitha Ganta, Herbert Davis, V Shane Pankratz, Mark Unruh
BACKGROUND: Acute kidney injury requiring renal replacement therapy (RRT) in the intensive care unit portends a poor prognosis. The decisions regarding dialysis catheter placement is based mainly on physician discretion with little evidence to support the choice of dialysis catheter location. METHODS: The Veterans Affairs/National Institutes of Health Acute Renal Failure Trial Network Study was a multicenter, prospective, randomized trial of intensive vs. less intensive RRT in critically ill patients with AKI...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28410649/incident-dialysis-access-in-patients-with-end-stage-kidney-disease-what-needs-to-be-improved
#11
REVIEW
Louise M Moist, Charmaine E Lok
The initiation of dialysis is a challenging time of transition for patients, families, and their supporters. Patients with exposure to a comprehensive chronic kidney disease clinic may have had education and subsequent decision making regarding dialysis modality and access; however, many patients with or without prior education will require an urgent start to dialysis, requiring quick decisions regarding dialysis modality and access. In many countries, hemodialysis (HD) using a central venous catheter (CVC) is the most common initial renal replacement modality and dialysis access...
March 2017: Seminars in Nephrology
https://www.readbyqxmd.com/read/28393400/sonography-of-arteriovenous-fistulas-and-grafts
#12
Jason A Pietryga, Mark D Little, Michelle L Robbin
Arteriovenous fistulas (AVFs) and arteriovenous grafts (AVGs) are the vascular accesses of choice for long-term hemodialysis. Strategies to establish and maintain functioning AVFs and AVGs are essential. In addition to clinical evaluation, ultrasound plays a critical role in the evaluation and maintenance of AVFs and AVGs. AVFs have a high rate of failure to mature which can be reliably diagnosed with ultrasound. Treatable etiologies of the failure to mature can often be diagnosed with ultrasound. Causes of secondary AVG failure can also be diagnosed with ultrasound and treated...
July 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28389288/predictors-of-autogenous-arteriovenous-hemodialysis-access-thrombosis-after-renal-transplantation
#13
Sabrina Ben Ahmed, Mohamed Hadj-Abdelkader, Marie Benezit, Patrice Deteix, Anne-Elisabeth Heng, Eugenio Rosset
BACKGROUND: The fate of autogenous arteriovenous fistula (aAVF) after renal transplantation (RT) remains variable. The aim of this study was to determine the predictors for their thrombosis after RT. METHODS: We conducted a monocentric retrospective review of prospective clinical records of 145 patients with a functional aAVF who had an RT between January 2004 and December 2009 in the University Hospital of Clermont-Ferrand. Our primary end point was the thrombosis of the aAVF...
April 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28382634/angiography-of-hemodialysis-fistulas-and-grafts
#14
Gerald A Beathard
Angiography of the dialysis access is an important procedure in dealing with dialysis arteriovenous access (AVA) dysfunction. It is an integral part and the initiating procedure for all the interventional procedures performed for the management and salvage of dialysis AVA. The performance of this procedure and normal dialysis access-related anatomy including anatomical variants are discussed. In addition, pathology commonly encountered in association with the anatomy is reviewed.
July 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28382736/vessel-mapping-for-dialysis-access-planning
#15
Vandana Dua Niyyar, Haimanot Wasse
The population of patients with end-stage renal disease (ESRD) in the United States is progressively increasing, with hemodialysis (HD) as the major mode of renal replacement therapy. National guidelines recommend increasing the use of arteriovenous fistulae (AVF) in both incident and prevalent hemodialysis patients. Pre-operative vascular mapping prior to the surgical creation of an AVF is now considered standard of care and may be helpful in achieving these goals. This manuscript focuses on the advantages and limitations of the various imaging techniques currently available for vessel mapping including physical examination, ultrasonography, angiography (iodinated contrast vs...
July 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28111198/institution-of-a-hospital-based-central-venous-access-policy-for-peripheral-vein-preservation-in-patients-with-chronic-kidney-disease-a-12-year-experience
#16
Jeffrey Forris Beecham Chick, Shilpa N Reddy, Benjamin L Yam, Sidney Kobrin, Scott O Trerotola
PURPOSE: To describe the implementation of nursing-based venous access team (VAT) and standardized interventional radiology (IR) protocols in accordance with Kidney Disease Outcomes Quality Initiative (K/DOQI) guidelines to provide central venous access while preserving peripheral veins in patients with chronic kidney disease (CKD). MATERIALS AND METHODS: Review of peripherally inserted central catheter (PICC) and small-bore central catheter (SBCC) referral and placement data from VAT and IR databases was conducted over a 12-year period...
March 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28135701/catheter-failure-and-mortality-in-hemodialysis-patients-with-tunneled-cuffed-venous-catheters-in-a-single-center
#17
Min Shi, Tianlei Cui, Liang Ma, Li Zhou, Ping Fu
BACKGROUND: As of now, only a few studies have focused on the failure of tunneled cuffed venous catheter (tCVC) and mortality of hemodialysis (HD) patients using tCVC as long-term vascular access, whose vascular condition for arteriovenous fistula was not very satisfactory. In this study, we aimed to provide information about the first tCVC failure and survival rates of patients in this population. METHODS: Fifty-nine patients who used tCVC from January 1, 2009 to December 31, 2014 in our HD center were analyzed in this retrospective study and followed up either until their death or until December 31, 2015...
2017: Blood Purification
https://www.readbyqxmd.com/read/28032484/treatment-of-methicillin-resistant-staphylococcus-aureus-bacteremia
#18
REVIEW
Eun Ju Choo, Henry F Chambers
Methicillin-resistant Staphylococcus aureus (MRSA) is a significant cause of health care-associated infections. Vancomycin remains an acceptable treatment option. There has been a welcome increase in the number of agents available for the treatment of MRSA infection. These drugs have certain differentiating attributes and may offer some advantages over vancomycin, but they also have significant limitations. These agents provide some alternative when no other options are available.
December 2016: Infection & Chemotherapy
https://www.readbyqxmd.com/read/28084215/dialysis-arteriovenous-fistula-failure-and-angioplasty-intimal%C3%A2-hyperplasia-and-other-causes-of-access-failure
#19
Juan C Duque, Marwan Tabbara, Laisel Martinez, Jose Cardona, Roberto I Vazquez-Padron, Loay H Salman
The arteriovenous fistula (AVF) is the preferred hemodialysis access type because it has better patency rates and fewer complications than other access types. However, primary failure remains a common problem impeding AVF maturation and adding to patients' morbidity and mortality. Juxta-anastomotic (or inflow) stenosis is the most common reason leading to primary failure, and percutaneous transluminal angioplasty continues to be the gold-standard treatment with excellent success rates. Intimal hyperplasia (IH) has been traditionally blamed as the main pathophysiologic culprit, but new evidence raises doubts regarding the contribution of IH alone to primary failure...
January 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28064472/arteriovenous-grafts-much-maligned-but-in-need-of-reconsideration
#20
Michael Allon
There are substantial variations in arteriovenous fistula (AVF) use among hemodialysis patients in different countries, in different regions of the U.S., and even in different hemodialysis units within a single metropolitan area. These variations persist after adjustment for patient demographics and comorbidities, suggesting that practice patterns play a major role in determining the frequency of AVF use. These observations led to vascular access guidelines urging nephrologists and surgeons to increase AVF creation in patients with chronic kidney disease...
March 2017: Seminars in Dialysis
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