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hemodialysis vascular access

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https://www.readbyqxmd.com/read/29130577/factors-affecting-the-patency-of-arteriovenous-fistulas-for-hemodialysis-single-center-experience
#1
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/29122210/strategies-to-increase-patient-safety-in-hemodialysis-application-of-the-modal-analysis-system-of-errors-and-effects-fema-system
#2
María Dolores Arenas Jiménez, Gabriel Ferre, Fernando Álvarez-Ude
BACKGROUND: Haemodialysis (HD) patients are a high-risk population group. For these patients, an error could have catastrophic consequences. Therefore, systems that ensure the safety of these patients in an environment with high technology and great interaction of the human factor is a requirement. OBJECTIVES: To show a systematic working approach, reproducible in any HD unit, which consists of recording the complications and errors that occurred during the HD session; defining which of those complications could be considered adverse event (AE), and therefore preventable; and carrying out a systematic analysis of them, as well as of underlying real or potential errors, evaluating their severity, frequency and detection; as well as establishing priorities for action (Failure Mode and Effects Analysis system [FMEA systems])...
November 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/29104939/asymmetric-dimethylarginine-does-not-predict-early-access-events-in-hemodialysis-patients-with-brachiocephalic-fistula-access
#3
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/29103931/timely-thrombectomy-can-improve-patency-of-hemodialysis-arteriovenous-fistulas
#4
Mu-Yang Hsieh, Lin Lin, Tsung-Yan Chen, Dao-Ming Chen, Ming-Hsien Lee, Yung-Fang Shen, Chung-Wei Yang, Shao-Yuan Chuang, Chih-Cheng Wu, Kuan-Yu Hung
OBJECTIVE: The urgency with which salvage of thrombosed vascular accesses for dialysis should be attempted remains unknown. We examined the effect of a timely thrombectomy approach on vascular access outcomes for dialysis. METHODS: A before-and-after study was conducted with patients on hemodialysis who had undergone endovascular thrombectomy. A timely thrombectomy initiative (ie, salvage within 24 hours of thrombosis diagnosis) was started in July 2015 at our institution...
November 2, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29098715/central-venous-catheters-for-chronic-hemodialysis-is-last-choice-never-the-right-choice
#5
EDITORIAL
Chance S Dumaine, Robert S Brown, Jennifer M MacRae, Matthew J Oliver, Pietro Ravani, Robert R Quinn
Since the publication of the first vascular access clinical practice guidelines in 1997, the global nephrology community has dedicated significant time and resources toward increasing the prevalence of arteriovenous fistulas and decreasing the prevalence of central venous catheters for hemodialysis. These efforts have been bolstered by observational studies showing an association between catheter use and increased patient morbidity and mortality. To date, however, no randomized comparisons of the outcomes of different forms of vascular access have been conducted...
November 2, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/29080304/high-resolution-computational-fluid-dynamic-simulation-of-haemodialysis-cannulation-in-a-patient-specific-arteriovenous-fistula
#6
David Fulker, Bogdan Ene-Iordache, Tracie J Barber
Arteriovenous fistulae are the preferred choice of vascular access in hemodialysis patients, however complications such as stenosis can lead to access failure or recirculation, which reduces dialysis efficiency. This study utilized computational fluid dynamics on a patient specific radio-cephalic fistula under hemodialysis treatment to determine the dynamics of access recirculation and identify the presence of disturbed flow. Metrics of transverse wall shear stress and oscillatory shear index were used to characterize the disturbed flow acting on the blood vessel wall, whilst a power spectral density analysis was used to calculate the any turbulence within the access...
October 28, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29076517/association-between-post-dialysis-hemoglobin-level-and-the-survival-of-vascular-access
#7
Hiroki Nishiwaki, Takeshi Hasegawa, Tatsuyoshi Ikenoue, Naoto Tominaga, Masahiko Yazawa, Hiroo Kawarazaki, Yugo Shibagaki, Yosuke Yamamoto, Shingo Fukuma, Shin Yamazaki, Shunichi Fukuhara
INTRODUCTION: Although a few dialysis facilities conduct a complete blood cell count for some patients at post-dialysis, including hemoglobin, clinical findings supporting the interpretation of results are scarce. The aim of this study was to investigate the association between post-dialysis hemoglobin level and vascular access failure with clinical data. METHODS: Study design: Case crossover design. Setting: Japanese dialysis facilities, which routinely take post-dialysis blood samples, including complete blood cell counts at least once a month...
October 24, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/29045916/suicide-deaths-among-patients-with-end-stage-renal-disease-receiving-dialysis-a-population-based-retrospective-cohort-study-of-64-000-patients-in-taiwan
#8
I-Ming Chen, Po-Hsien Lin, Vin-Cent Wu, Chi-Shin Wu, Jia-Chi Shan, Shu-Sen Chang, Shih-Cheng Liao
BACKGROUND: Patients with end-stage renal disease (ESRD) who receive dialysis may experience increased distress and risk of suicide. METHODS: This population-based retrospective cohort study linked Taiwan's national register of ESRD patients on dialysis and the cause-of-death mortality data file. A separate multiple-cause-of-death data file was used to investigate the detailed suicide methods used. Standardized mortality ratios (SMRs) were calculated for the overall patient group and by sex, age, year of initiating dialysis, method of suicide, and time since initiation of dialysis...
October 9, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29044335/brazilian-chronic-dialysis-survey-2016
#9
Ricardo Cintra Sesso, Antonio Alberto Lopes, Fernando Saldanha Thomé, Jocemir Ronaldo Lugon, Carmen Tzanno Martins
INTRODUCTION: National chronic dialysis data are important for the treatment planning. OBJECTIVE: To report data of the annual survey of the Brazilian Society of Nephrology about chronic kidney disease patients on dialysis in July 2016. METHODS: A survey based on data of dialysis centers from the whole country. The data collection was performed by using a questionnaire filled out on-line by the dialysis centers. RESULTS: 309 (41%) of the dialysis units in the country answered the questionnaire...
July 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29027182/preoperative-management-of-arteriovenous-fistula-avf-for-hemodialysis
#10
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
#11
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
#12
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/28990213/the-complex-relationship-among-arteriovenous-access-heart-and-circulation
#13
EDITORIAL
Carlo Basile, Carlo Lomonte
There are currently near 400 000 patients on hemodialysis in the United States. More than 50% of those treated by chronic hemodialysis die because of a cardiovascular (CV) event. The majority of these patients have functional arteriovenous fistulas (AVFs). AVFs have an adverse effect on cardiac function, but their exact contribution to CV morbidity is not clear. It has long been known that a vascular access with an inappropriately high-flow rate may cause high-output heart failure. Paradoxically, there may be hemodynamic and cardiopulmonary benefits conferred by AVF particularly in severe chronic obstructive pulmonary disease...
October 9, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28958669/-infections-on-catheters-in-hemodialysis-temporal-fluctuations-of-the-infectious-risk
#14
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
#15
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
#16
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/28927232/association-between-intradialytic-central-venous-oxygen-saturation-and-ultrafiltration-volume-in-chronic-hemodialysis-patients
#17
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
#18
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
#19
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
#20
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
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