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Arteriovenous access

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https://www.readbyqxmd.com/read/29690817/failure-to-place-a-tunneled-hemodialysis-catheter-due-to-malformation-of-right-internal-jugular-vein-draining-to-subclavian-vein
#1
Li-Na Zhu, Li-Jun Mou, Ying-Hu, Gui-Na Wei, Jun-Feng Sun
The right internal jugular vein (IJV) is an important access site for hemodialysis catheterization. Venous cannulation failure is usually caused by central venous stenosis and is rarely related to vessel malformation. We herein present a case of failure to place a tunneled hemodialysis catheter into the right IJV. The patient had an arteriovenous fistula in the right arm with inadequate flow and a history of multiple central venous catheterizations. The guidewire was repeatedly misplaced into the right subclavian vein (SV) regardless of the technique used...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29680929/evaluation-of-factors-affecting-time-to-achieve-dry-weight-among-hemodialysis-patients-using-bioimpedance-spectroscopy
#2
Amjad Khan, Amer Hayat Khan, Azreen Syazril Adnan, Syed Azhar Syed Sulaiman, Nafees Ahmad, Siew Hua Gan
BACKGROUND: Achieving and maintaining dry weight appears to be an effective strategy for controlling and maintaining normotension among hypertensive patients on hemodialysis (HD). OBJECTIVE: The present study aimed to determine the time at which the majority of patients achieve postdialysis dry weight using bioimpedance spectroscopy (BIS). METHODS: A total of 220 HD patients were prospectively assessed for fluid overload using the Fresenius body composition monitor (BCM)...
April 22, 2018: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/29680297/early-results-of-percutaneous-arteriovenous-fistula-creation-with-the-ellipsys-vascular-access-system
#3
Alexandros Mallios, William C Jennings, Benoit Boura, Alessandro Costanzo, Pierre Bourquelot, Myriam Combes
OBJECTIVE: We reviewed our initial experience creating a percutaneous arteriovenous fistula (pAVF) using a thermal resistance anastomosis device with proximal radial artery inflow. METHODS: A retrospective review was conducted of all patients who underwent a pAVF creation procedure between May 2017 and October 2017. Primary end points of the study were technical success, patency by Doppler ultrasound examination or angiography, flow levels achieved, time to first use, and pAVF-related complications...
April 18, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29680175/three-year-patency-and-recurrence-rates-of-revision-using-distal-inflow-with-a-venous-interposition-graft-for-high-flow-brachial-artery-based-arteriovenous-fistula
#4
Michael W M Gerrickens, Roel H D Vaes, Bastiaan Govaert, Magda van Loon, Jan H M Tordoir, Frank van Hoek, Joep A W Teijink, Marc R Scheltinga
OBJECTIVES: Upper arm arteriovenous fistulas (AVF) occasionally develop high flow. Revision using distal inflow (RUDI) effectively reduces flow of high flow accesses (HFA) in the short-term and is also popularised for treatment of haemodialysis access induced distal ischaemia (HAIDI). The long-term efficacy is unknown. The study's aim was to report on 3 year RUDI patency and recurrence rates for HFA with and without HAIDI. MATERIAL AND METHODS: This was a retrospective cohort study of patients with a HFA with or without HAIDI undergoing RUDI using greater saphenous vein (GSV) interposition between March 2011 and October 2017 at three facilities...
April 18, 2018: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29675625/multidetector-ct-of-iatrogenic-and-self-inflicted-vascular-lesions-and-infections-at-the-groin
#5
REVIEW
Massimo Tonolini, Anna Maria Ierardi, Gianpaolo Carrafiello, Domenico Laganà
The number and complexity of endovascular procedures performed via either arterial or venous access are steadily increasing. Albeit associated with higher morbidity compared to the radial approach, the traditional common femoral artery remains the preferred access site in a variety of cardiac, aortic, oncologic and peripheral vascular procedures. Both transarterial and venous cannulation (for electrophysiology, intravenous laser ablation and central catheterisation) at the groin may result in potentially severe vascular access site complications (VASC)...
April 19, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29672304/the-role-of-doppler-ultrassonography-in-significant-and-borderline-stenosis-definition
#6
Ana Castro, Carla Moreira, Paulo Almeida, Norton de Matos, Luís Loureiro, Gabriela Teixeira, Duarte Rego, Sérgio Teixeira, Joaquim Pinheiro, Telmo Carvalho, Isabel Fonseca, José Queirós
BACKGROUND: The definition of significant stenosis (SS) remains controversial. METHODS: We retrospectively reviewed 1,040 consultations. SS was defined in the presence of clinical and echo-Doppler (DDU) criteria: Qa <500 mL/min or Qa decrease >25%; RI >0.7 in the feeding artery or absolute minimal luminal stenosis diameter <2.0 mm. Stenosis without any additional criteria were considered borderline stenosis (BS). RESULTS: Two hundred twenty-one arteriovenous fistulas (AVFs) were included: 58...
April 19, 2018: Blood Purification
https://www.readbyqxmd.com/read/29662810/clinical-results-of-arteriovenous-fistulas-constructed-using-autologous-vessels-in-end-stage-renal-disease-patients-on-hemodialysis
#7
Ki Tae Kim, Jae Wook Ryu, Pil Won Seo, Kyoung Min Ryu
Background: For hemodialysis patients with end-stage renal disease (ESRD), it is important to construct an efficient vascular access with a superior patency rate. This study investigated the factors influencing the efficiency of arteriovenous fistulas (AVFs) constructed using an autologous vessel and evaluated the necessity of ultrasonography as a preoperative tool for AVF construction. Methods: A retrospective analysis was performed of 250 patients in whom an AVF was constructed using an autologous vessel due to ESRD at our institution from January 2009 to April 2016...
April 2018: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29657207/adoption-of-transposed-basilic-vein-as-access-for-hemodialysis
#8
Jacob A Akoh
The fistula first initiative has rekindled interest in transposition of basilic vein (TBV) in preference to arteriovenous grafts (AVG). TBV is considered to have advantages over AVG. The aim of this study was to analyze the outcome of TBVs in our center comparing them to a historically matched group of patients who had AVG. Thirty-two patients who underwent TBV as a vascular access procedure in Derriford Hospital between January 2010 and October 2014 were included in the study. The historical control group comprised 31 patients who had AVG inserted in the upper arm between January 1999 and December 2010...
March 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29642730/long-term-outcomes-of-bovine-pericardial-patch-angioplasty-for-recurrent-stenosis-in-vascular-access-a-uk-single-centre-experience
#9
Owain Fisher, Lewis Meecham, Pauline Buxton, Jocelyn Legge, Jack Fairhead, Sriram Rajagopalan, John Asquith, Arun Pherwani
INTRODUCTION: Stenosis of an arteriovenous fistula or arteriovenous graft for dialysis is a common problem. Stenosis may lead to a number of problems including failure of the fistula. Treatment of stenosis is commonly with percutaneous angioplasty or surgical patch angioplasty with autologous vein or synthetic graft or patch. Here we report the use of bovine pericardial patch angioplasty as an alternative mode of patch angioplasty when percutaneous intervention has failed. METHODS: Patients with fistulae treated with bovine patch angioplasty between 2013 and 2016 were identified from a prospectively maintained renal access database (Cyberren® )...
April 1, 2018: Journal of Vascular Access
https://www.readbyqxmd.com/read/29629274/current-characteristics-of-dialysis-therapy-in-korea-2016-registry-data-focusing-on-diabetic-patients
#10
Dong-Chan Jin, Sung-Ro Yun, Seoung Woo Lee, Sang-Woong Han, Won Kim, Jongha Park, Yong-Kyun Kim
Diabetic nephropathy is the most frequent cause of end-stage renal disease worldwide. Dialysis patients with diabetes mellitus (DM) have more complications and shorter survival duration than non-DM dialysis patients, requiring more clinical attention and difficult management. The registry committee of the Korean Society of Nephrology has collected data about dialysis therapy in Korea through an on-line registry program and analyzed the characteristics of patients. A survey of dialysis patients in 2016 showed that 50...
March 2018: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/29627998/physical-examination-of-the-hemodialysis-arteriovenous-fistula-to-detect-early-dysfunction
#11
Kenneth Abreo, Bakhtiar M Amin, Adrian P Abreo
The maintenance of vascular access patency for end-stage renal disease patients on hemodialysis is necessary for survival. Many nephrologists, nurse practitioners, and nurses have limited experience with the physical examination of the arteriovenous fistula. In this review, we define key terms used in the assessment of an arteriovenous fistula. We discuss the arteriovenous fistula physical exam, including details of inspection, palpation, and auscultation. Using these concepts, we review the abnormal findings that can assist practitioners in determining the location of a stenosis...
April 1, 2018: Journal of Vascular Access
https://www.readbyqxmd.com/read/29615350/a-technique-for-the-salvage-of-megafistulas-allowing-immediate-dialysis-access
#12
Nosratollah Nezakatgoo, Steven D Kozusko, Jefferson T Watson, Rebecca Empting, Charles P Shahan, Michael J Rohrer
OBJECTIVE: Almost two million individuals are undergoing renal replacement therapy worldwide, with hemodialysis being the common form. Many factors influence the primary patency of an arteriovenous fistula (AVF), including vessel size, fistula flow rates, cannulation practice, and thrombotic tendencies. Excess dilation of the AVF, resulting in the development of a megafistula, is a complication that can result in a need for AVF revision and subsequent failure. METHODS: The charts of patients who underwent autogenous AVF revision because of the development of a megafistula with aneurysmectomy and vein transposition by a single surgeon during a 7-year period from 2009 through 2016 were reviewed...
March 31, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29614907/haemodialysis-access-thrombosis-outcomes-after-surgical-thrombectomy-versus-catheter-directed-thrombolytic-infusion
#13
Linn Koraen-Smith, Matteus Krasun, Matteo Bottai, Ulf Hedin, Carl M Wahlgren, Peter Gillgren
INTRODUCTION: Thrombosis is one of the most common complications of dialysis vascular access and is a significant source of morbidity and healthcare-associated costs. In this retrospective study, outcomes for surgical thrombectomy and thrombolysis after access thrombosis in patients with arteriovenous fistulas or prosthetic grafts (arteriovenous grafts) were analysed. METHODS: All patients with a primary episode of dialysis access thrombosis between 2005 and 2013 were included which yielded 131 patients with 149 episodes of access thrombosis (108 arteriovenous grafts; 41 arteriovenous fistulas)...
April 1, 2018: Journal of Vascular Access
https://www.readbyqxmd.com/read/29609087/the-tonsillouvular-fissure-approach-access-to-dorsal-and-lateral-aspects-of-the-fourth-ventricle
#14
Ilhan Aydin, Sahin Hanalioglu, Halil Olgun Peker, Yahya Turan, Hakan Kina, Ulas Cikla, Mustafa K Baskaya
OBJECTIVE: Although approaches to the fourth ventricle (FV) have been studied well, approaches to the lesions located in the dorsal and lateral aspects of the FV have not been demonstrated in anatomical or clinical studies. The aim of present study is to demonstrate the tonsillouvular fissure approach (TUFA) in anatomical dissections and its utilization in surgical series for the first time in the literature. METHODS: For anatomical studies, four formalin-fixed human cadaveric heads infused with colored silicone and ten cerebellar specimens were dissected in a stepwise manner...
March 30, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29605379/bacteriology-of-the-buttonhole-cannulation-tract-in-hemodialysis-patients-a-prospective-cohort-study
#15
Line Dahlstrøm Christensen, Mai-Britt Skadborg, Agnete H Mortensen, Carsten Mortensen, Jens K Møller, Lars Lemming, Irene Høgsberg, Steffen E Petersen, Niels H Buus
BACKGROUND: The buttonhole cannulation technique for arteriovenous fistulas is widely used, but has been associated with an increased rate of vascular access-related infections. We describe the frequency and type of bacterial colonization of the buttonhole tract over time and associated clinical infections. STUDY DESIGN: A prospective observational cohort study with 9 months of follow-up. SETTING & PARTICIPANTS: 84 in-center hemodialysis patients using the buttonhole cannulation technique at 2 Danish dialysis centers...
March 29, 2018: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29603265/atrial-transseptal-left-ventricular-lead-implantation-for-cardiac-resynchronization-therapy-using-arteriovenous-loop-technique
#16
Yixiu Liang, Daxin Zhou, Jingfeng Wang, Shengmei Qin, Xueying Chen, Yangang Su, Junbo Ge
To date, several techniques for transseptal left ventricular (LV) endocardial pacing for cardiac resynchronization therapy (CRT) have been proposed in patients for whom routine transvenous LV pacing is infeasible. These techniques are of varying difficulty and complexity, and some requires devices not easily accessible. We herein report a simple, safe and effective approach of atrial transseptal LV lead implantation using arteriovenous loop technique in a patient for whom transvenous LV implantation lead had failed...
March 30, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29602630/medicare-costs-associated-with-arteriovenous-fistulas-among-us-hemodialysis-patients
#17
Mae Thamer, Timmy C Lee, Haimanot Wasse, Marc H Glickman, Joyce Qian, Daniel Gottlieb, Scott Toner, Timothy A Pflederer
BACKGROUND: An arteriovenous fistula (AVF) is the recommended vascular access for hemodialysis (HD). Previous studies have not examined the resources and costs associated with creating and maintaining AVFs. STUDY DESIGN: Retrospective observational study. SETTING & PARTICIPANTS: Elderly US Medicare patients initiating hemodialysis therapy during 2010 to 2011. PREDICTOR: AVF primary and secondary patency and nonuse in the first year following AVF creation...
March 28, 2018: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29600966/asymmetric-dimethylarginine-as-a-useful-risk-marker-of-radial-artery-calcification-in-patients-with-advanced-kidney-disease
#18
Marcin Krzanowski, Katarzyna Krzanowska, Mariusz Gajda, Paulina Dumnicka, Grzegorz Kopeć, Bartłomiej Guzik, Karolina Woziwodzka, Artur Dziewierz, Jan A Litwin, Władysław Sułowicz
INTRODUCTION    Medial arterial calcification is common in patients with chronic kidney disease (CKD) and is considered a risk factor for morbidity and mortality. OBJECTIVES    We aimed to evaluate the correlation between asymmetric dimethylarginine (ADMA) levels, radial artery calcification, and common carotid artery intima-media thickness (CCA‑IMT). PATIENTS AND METHODS    The study included 51 patients with CKD, in whom an arteriovenous fistula for hemodialysis access was created to collect radial artery samples for a histological examination, and 33 healthy volunteers, in whom the reference concentrations of ADMA were assessed...
March 29, 2018: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/29597214/evolution-of-technology-for-continuous-renal-replacement-therapy-forty-years-of-improvement
#19
Claudio Ronco
Continuous arteriovenous hemofiltration (CAVH) was proposed in 1977 as an alternative treatment for acute renal failure in patients in whom peritoneal dialysis or hemodialysis was clinically or technically precluded. In the mid-1980s, this technique was extended to infants and children. CAVH presented important advantages in the areas of hemodynamic stability, control of circulating volume, and nutritional support. However, there were serious shortcomings such as the need for arterial cannulation and limited solute clearance...
2018: Contributions to Nephrology
https://www.readbyqxmd.com/read/29588811/effect-of-low-dose-aspirin-and-dipyridamole-on-primary-patency-of-arteriovenous-grafts-in-hemodialysis-patients-a-randomized-double-blind-placebo-controlled-trial
#20
Pouya Tayebi, Gholamhosein Kazemzadeh, Azin Banihashem, Hassan Ravari
Background: There is some evidence for the efficacy of antiplatelet therapies in increasing the vascular access patency duration or decreasing the thrombosis of arteriovenous grafts. Objective: To determine the effect of low dose aspirin and dipyridamole on primary patency of arteriovenous grafts in hemodialysis patients. Methods: This randomized, double-blind, placebo-controlled trial was done at Imam Reza Hospital in Mashhad, Iran from September 10, 2015 to July 05, 2016...
January 2018: Electronic Physician
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