Read by QxMD icon Read

dialysis arteriovenous fistula

Tsung-Yan Chen, Ting-Tse Lin, Mu-Yang Hsieh, Lin Lin, Chung-Wei Yang, Shao-Yuan Chuang, Po-Hsun Huang, Chih-Cheng Wu
BACKGROUND: Arteriovenous fistula (AVF) thrombosis is a relevant cause of morbidity in hemodialysis (HD) patients. The number of circulating endothelial progenitor cells (EPCs) has been identified as a surrogate marker for vascular repair and health. Deficiency of EPCs has been demonstrated in dialysis patients to be associated with vascular events. Nonetheless, their role in thrombosis of AVFs remains unknown. METHODS: From January 2010 to May 2013, 147 HD patients with dysfunctional AVFs were enrolled...
October 27, 2016: American Journal of Nephrology
Tevfik Ecder, Cengiz Utas, Kenan Ates, Brian Bieber, Bruce M Robinson, Ronald L Pisoni, Gültekin Süleymanlar
Introduction Turkey has one of the largest treated end-stage renal disease (ESRD) patient populations in Europe (N = 66,711). In 2013, the international Dialysis Outcomes and Practice Patterns Study (DOPPS), a prospective study of hemodialysis (HD) practices and outcomes, initiated data collection in Turkey. Here we provide comparisons of HD patients in DOPPS-Turkey with other international regions and with patients in the Registry of Turkish Nephrology, Dialysis and Transplantation. Methods DOPPS-Turkey study sites were randomly selected from all Turkish HD units treating ≥25 in-center chronic HD patients...
October 25, 2016: Hemodialysis International
Filippo Benedetto, Domenico Spinelli, Narayana Pipitò, Giambattista Gagliardo, Alberto Noto, Simona Villari, Antonio David, Francesco Spinelli
OBJECTIVE: The purpose of this study was to examine the outcomes of a vascular hybrid polytetrafluoroethylene (PTFE) graft, provided with a nitinol-reinforced section (NRS) on one end, in hemodialysis vascular access placement. METHODS: A retrospective study was conducted including all the consecutive patients who underwent Gore Hybrid Vascular Graft (GHVG; W. L. Gore & Associates, Flagstaff, Ariz) implantation for hemodialysis access placement between October 2013 and November 2015...
October 12, 2016: Journal of Vascular Surgery
Panagiotis M Kitrou, Stavros Spiliopoulos, Panagiotis Papadimatos, Nicolaos Christeas, Theodoros Petsas, Konstantinos Katsanos, Dimitris Karnabatidis
PURPOSE: To investigate the safety and effectiveness of lutonix paclitaxel-coated balloon (PCB) for the treatment of dysfunctional dialysis access. MATERIALS AND METHODS: This was a single-center, single-arm, retrospective analysis of 39 patients (23 male, 59 %) undergoing 61 interventions using 69 PCBs in a 20-month period. There was a balance between arteriovenous fistulae (AVF) and grafts (AVG) (20 AVFs, 19AVGs), and the majority of lesions were restenotic (25/39, 64...
October 14, 2016: Cardiovascular and Interventional Radiology
Andrew I Chin, Kathleen Tong, John P McVicar
Heart failure necessitating left ventricular assist device (LVAD) support can lead to kidney failure requiring dialysis. Some of these patients may require long-term hemodialysis (HD). Optimal vascular access for a patient on long-term HD therapy with an LVAD remains a complex issue. The majority of LVADs are of the continuous-flow type, and it has been theorized that native arteriovenous fistula maturation may be impaired in a setting of decreased pulsatile arterial flow. We describe a case of successful creation and use of an arteriovenous fistula in an HD-dependent patient with a continuous-flow LVAD...
September 27, 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
Adam D Jakes, Poonam Jani, Victoria Allgar, Archie Lamplugh, Ahmed Zeidan, Sunil Bhandari
BACKGROUND: Dialysis in elderly patients (>80-years-old) carries a poor prognosis, but little is known about the most effective vascular access method in this age group. An arteriovenous fistula (AVF) is both time-consuming and initially expensive, requiring surgical insertion. A central venous catheter (CVC) is initially a cheaper alternative, but carries a higher risk of infection. We examined whether vascular access affected 1-year and 2-year mortality in elderly patients commencing haemodialysis...
2016: PloS One
Carlo Basile, Luigi Vernaglione, Francesco Casucci, Pasquale Libutti, Piero Lisi, Luigi Rossi, Valentina Vigo, Carlo Lomonte
BACKGROUND: Satisfactory vascular access flow (Qa) of an arteriovenous fistula (AVF) is necessary for haemodialysis (HD) adequacy. The aim of the present study was to further our understanding of haemodynamic modifications of the cardiovascular system of HD patients associated with an AVF. The main objective was to calculate using real data in what way an AVF influences the load of the left ventricle (LLV). METHODS: All HD patients treated in our dialysis unit and bearing an AVF were enrolled into the present observational cross-sectional study...
October 2016: Clinical Kidney Journal
Pierpaolo Di Nicolò, Marina Cornacchiari, Marco Mereghetti, Anna Mudoni
As a consequence of the central role of the arteriovenous fistula for dialysis (AVF) in the clinical management of the dialysis patient the necessity to limit the puncture-related complications to extend as much as possible the life of the vascular access. Accordingly, the AVF needling technique has gained growing attention. Alongside the traditional rope ladder (RL) puncture method, the buttonhole technique (BH) is increasingly popular; this technique employs the same cannulation sites of AVF in every dialysis associated with the use of dull needles to minimize vessels damage...
September 27, 2016: Seminars in Dialysis
Takayuki Adachi, Tsutomu Sakurada, Takanori Otowa, Keita Uehara, Shina Sueki, Shigeki Kojima, Nagayuki Kaneshiro, Katsuomi Matsui, Tadahisa Tomohiro, Yugo Shibagaki
Vascular access intervention therapy (VAIVT) has been positioned as the first choice of treatment for stenosis lesions frequently observed in arteriovenous fistula (AVF) for hemodialysis patients in Japan. Furthermore, increased blood flow can provide a stable dialysis. In contrast, it has been reported that excess blood flow of AVF causes high-output heart failure. Although VAIVT is used to increase blood flow of AVF, the impact of VAIVT on cardiac load has been rarely reported. We examined the factors associated with cardiac load in hemodialysis patients undergoing VAIVT by measuring levels of α human atrial natriuretic polypeptide (hANP) and brain natriuretic peptide (BNP) before and after VAIVT...
October 2016: Hemodialysis International
Normawati Mat Said, Kamarul Imran Musa, Mohamed Ashraf Mohamed Daud, Juhara Haron
PURPOSE: We compared the patency and the suitability of arteriovenous fistula (AVF) created for vascular access by two approaches: (a) physical examination with preoperative vascular mapping and (b) physical examination alone. METHODS: We compared the patency and the suitability of AVF created in patients for dialysis. There were two cohorts of patients of 79 patients each: (a) patients with AVF created based on the combination of physical examination and preoperative vascular mapping (PE+VM) and (b) patients with AVF created based on physical examination (PE) alone...
July 2016: Malaysian Journal of Medical Sciences: MJMS
Andreas H Brandt, Jonas Jensen, Kristoffer L Hansen, Peter Hansen, Theis Lange, Marianne Rix, Jørgen A Jensen, Lars Lönn, Michael B Nielsen
PURPOSE: To investigate if ultrasound vector-flow imaging (VFI) is equal to the reference method ultrasound dilution technique (UDT) in estimating volume flow and changes over time in arteriovenous fistulas (AVFs) for hemodialysis. MATERIALS AND METHODS: From January 2014 to January 2015, patients with end-stage renal disease and matured functional AVFs were consecutively solicited to participate in this prospective study. All patients were included after written informed consent and approval by the National Committee on Biomedical Research Ethics and the local Ethics Committee (journal no...
September 1, 2016: Journal of Vascular Access
Cristiana David, Ileana Peride, Andrei Niculae, Alexandra Maria Constantin, Ionel Alexandru Checherita
BACKGROUND: Native arteriovenous fistula (AVF) is the most appropriate type of vascular access for chronic dialysis. Its patency rates depend on vascular wall characteristics. Ketoacid analogues of essential amino acids (KA/EAA) are prescribed in end-stage renal disease (ESRD) pre-dialysis patients to lower toxic metabolic products generation and improve nutritional status. We hypothesized that very-low protein diet (VLPD) supplemented with KA/EAA may influence arterial wall stiffness and affect AVF maturation rates and duration in pre-dialysis ESRD patients...
September 20, 2016: BMC Nephrology
Tammy Hod, Alexander S Goldfarb-Rumyantzev, Bhanu K Patibandla, Akshita Narra, Robert S Brown
BACKGROUND: In patients with failure of an initial arteriovenous fistula (AVF), a subsequent vascular access is needed before hemodialysis (HD) initiation. METHODS: To assess the optimal access strategy after a failed AVF, we linked data from the US Renal Data System with Medicare claims data identifying 21,436 patients ≥ 67 years old who started HD between January 1, 2005, and December 31, 2008, with an AVF placed as their first predialysis access. Of the 10,568 subjects whose AVF failed, 1,796 patients had an AVF placed as a second access predialysis (AVF2 group) and 399 patients had an arteriovenous graft placed as a second access predialysis (AVG2 group)...
November 2016: Clinical Nephrology
Ashwal Adamane Jayaram, Padmakumar Ramachandran, Tom Devasiya, Abdul Razak Uddina Kumeri, Umesh Pai
Innominate vein stenosis or thrombotic occlusion can occur in dialysis patients. Central vein stenosis is a common problem in patients on dialysis. Placement of a central vein catheter for dialysis access increases the risk of central vein stenosis. Central vein stenosis sometimes can jeopardize the arteriovenous fistula and arteriovenous graft in the ipsilateral extremity unless recognized early and treated. We describe three patients with left innominate vein stenosis who were known case of chronic kidney disease on haemodialysis and had a left brachio-cephalic fistula and presented with unilateral facial and upper limb oedema...
July 2016: Journal of Clinical and Diagnostic Research: JCDR
Alian Al-Balas, Timmy Lee, Carlton J Young, Jill Barker-Finkel, Michael Allon
BACKGROUND AND OBJECTIVES: The optimal timing of predialysis arteriovenous fistula surgery remains uncertain. We evaluated factors associated with hemodialysis initiation in patients undergoing predialysis arteriovenous fistula surgery and derived a model to predict future initiation of dialysis. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Our study retrospectively identified 308 patients undergoing predialysis arteriovenous fistula creation at a large medical center in 2006-2012 to determine whether they initiated hemodialysis...
September 14, 2016: Clinical Journal of the American Society of Nephrology: CJASN
Mu-Yang Hsieh, Tsung-Yan Chen, Lin Lin, Min-Tsun Liao, Ren-Huei Wang, Ruei-Cheng Kuo, Chao-Lun Lai, Chih-Cheng Wu
OBJECTIVES: Right heart catheterization is an important diagnostic tool but carries risks of adverse events. Little is known about the feasibility and safety of using dialysis arteriovenous (AV) shunts. We aim to evaluate the feasibility and safety of using dialysis AV shunts for access in right heart catheterization. METHODS: Hemodialysis patients who required right heart catheterization were prospectively enrolled. A 7 Fr sheath was inserted and a balloon-tipped pulmonary artery catheter was advanced for right heart catheterization...
September 15, 2016: Journal of Invasive Cardiology
Dacian-Călin Tirinescu, Cosmina Ioana Bondor, Dan Ştefan Vlăduțiu, Ioan Mihai Pațiu, Diana Moldovan, Remus Orășan, Ina Maria Kacsó
AIMS: Ultrasound (US) examination is an important tool in the diagnosis of arteriovenous (AVF) stenoses; different US measures are available for assessing the severity of stenoses. The aim of our study was to analyse risk factors and consequences of AVF stenosis and its severity and to compare the usefulness of different US measures of stenoses' severity. MATERIAL AND METHODS: Ninety-seven prevalent patients from a single dialysis centre with patent AVF were included...
September 2016: Medical Ultrasonography
Robert S Brown, Bhanu K Patibandla, Alexander S Goldfarb-Rumyantzev
Patients needing hemodialysis are advised to have arteriovenous fistulas rather than catheters because of significantly lower mortality rates. However, disparities in fistula placement raise the possibility that patient factors have a role in this apparent mortality benefit. We derived a cohort of 115,425 patients on incident hemodialysis ≥67 years old from the US Renal Data System with linked Medicare claims to identify the first predialysis vascular access placed. We compared mortality outcomes in patients initiating hemodialysis with a fistula placed first, a catheter after a fistula placed first failed, or a catheter placed first (n=90,517; reference group)...
September 7, 2016: Journal of the American Society of Nephrology: JASN
Timmy Lee, Mae Thamer, Yi Zhang, Qian Zhang, Michael Allon
BACKGROUND AND OBJECTIVES: Few studies have evaluated vascular access use after transition from peritoneal dialysis to hemodialysis. Our study characterizes vascular access use after switch to hemodialysis and its effect on patient mortality and evaluates whether a peritonitis event preceding the switch was associated with the timing of permanent vascular access placement and use. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: The US Renal Data System data were used to evaluate the establishment of a permanent vascular access in 1165 incident Medicare-insured adult patients on dialysis who initiated peritoneal dialysis between July 1, 2010 and June 30, 2011 and switched to hemodialysis within 1 year...
August 30, 2016: Clinical Journal of the American Society of Nephrology: CJASN
E Mancini, C Perazzini, L Gesualdo, F Aucella, A Limido, F Scolari, S Savoldi, M Tramonti, L Corazza, M Atti, S Severi, P Bolasco, A Santoro
BACKGROUND: Intradialytic hypotension (IDH) has a dramatic impact on the main outcomes of dialysis patients. Early warning of hemodynamic worsening during dialysis would enable preventive measures to be taken. Blood oxygen saturation (SO2) is used for hemodynamic monitoring in the critical care setting and may provide useful information about IDH onset. AIM: To evaluate whether short- and medium-term variations in the SO2 signal (ST-SO2var, MT-SO2var,) during dialysis are a predictor of IDH...
August 29, 2016: Journal of Nephrology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"