Clinical Outcomes of Arteriovenous Access in Incident Hemodialysis Patients with Medicare Coverage, 2012–2014

2019 ◽  
Vol 49 (2) ◽  
pp. 156-164 ◽  
Author(s):  
Lauren C. Bylsma ◽  
Heidi Reichert ◽  
Shawn M. Gage ◽  
Prabir Roy-Chaudhury ◽  
Robert J. Nordyke ◽  
...  

Background: Chronic hemodialysis requires a mode of vascular access through an arteriovenous fistula (AVF), a prosthetic arteriovenous graft (AVG), or a central venous catheter (CVC). AVF is recommended over AVG or CVC due to increased patency and decreased intervention rates for those that mature. AVG are preferred over CVC due to decreased infection and mortality risk. The aims of this study were to evaluate the lifespan of AVF and AVG in maturation, sustained access use, and abandonment. Methods: The United States Renal Data System (USRDS), Medicare claims, and CROWNWeb were used to identify access placements. Patients with a first end-stage renal disease (ESRD) service from January 1, 2012 to June 30, 2014 with continuous coverage with Medicare as primary payer and ≥1 AVF or AVG placed after ESRD onset were included. Maturation was defined as the first use of the access for hemodialysis recorded in CROWNWeb. Sustained access use was defined as 3 consecutive months of use without catheter placement or replacement. Accesses that were never used at any time post-placement were considered abandoned. Results: The cohort included 38,035 AVF placements and 12,789 AVG placements. Sixty-nine percent of AVF and 72% of AVG matured. Fifty-two percent of AVF and 51% of AVG achieved sustained access use. One quarter of AVF and 14% of AVG were abandoned without use as recorded in CROWNWeb. Conclusion: Although considered the gold standard for vascular access, only half of AVF and AVG placements achieved sustained access use. The USRDS database has inherent limitations but provides useful clinical insight into maturation, sustained use, and abandonment.

Kidney360 ◽  
2021 ◽  
pp. 10.34067/KID.0004502021
Author(s):  
Rupam Ruchi ◽  
Shahab Bozorgmehri ◽  
Gajapathiraju Chamarthi ◽  
Tatiana Orozco ◽  
Rajesh Mohandas ◽  
...  

Background: Pre-end stage renal disease (ESRD) Kidney Disease Education (KDE) has been shown to improve multiple chronic kidney disease (CKD) outcomes but, its impact on vascular access outcomes is not well-studied. In 2010, Medicare launched KDE reimbursements policy for patients with advanced CKD. Methods: In this retrospective USRDS analysis, we identified all adult incident hemodialysis patients with a minimum of 6-months of pre-ESRD Medicare coverage during the first five-years of CMS-KDE policy and divided them into CMS-KDE services recipients (KDE-cohort) and non-recipients (non-KDE cohort). The primary outcome was incident arteriovenous fistula (AVF) and the composite of incident AVF or arteriovenous graft (AVG) utilization. Secondary outcomes were central venous catheter (CVC) with maturing AVF/AVG and pure CVC utilizations. Step-wise multivariate analyses were performed in four progressive models (model 1: KDE alone, model 2: multivariate model encompassing model 1 with socio-demographics, model 3: model 2 with comorbidity and functional status, and model 4: model 3 with pre-ESRD nephrology care). Results: Of the 211,990 qualifying incident hemodialysis patients during the study period, 2,887(1.4%) received KDE services before dialysis initiation. The rates of incident AVF and composite AVF/AVG were more than double (29.7% and 34.9% respectively, compared to 14.2% and 17.2%) and pure catheter use about a third lower (40.4% compared to 64.5%) in the KDE cohort compared to the non-KDE cohort. Maximally adjusted odds ratio(99% confidence interval) in model 4 for study outcomes were: incident AVF use: 1.78 (1.55-2.05), incident AVF/AVG use: 1.78 (1.56-2.03), incident CVC with maturing AVF/AVG: 1.69 (1.44-1.97)and pure CVC without any AVF/AVG: 0.51 (0.45-0.58). The benefits of KDE service were maintained even after accounting for the presence, duration and facility of ESRD care. Conclusion: Occurrence of pre-ESRD KDE service is associated with significantly improved incident vascular access outcomes. Targeted studies are needed to examine the impact of KDE on patient engagement and self-efficacy as a cause for improvement in vascular access outcomes.


2019 ◽  
Vol 21 (2) ◽  
pp. 230-236
Author(s):  
Saravanan Balamuthusamy ◽  
Larry E Miller ◽  
Diana Clynes ◽  
Erin Kahle ◽  
Richard A Knight ◽  
...  

Objectives: To determine the vascular access modalities used for hemodialysis, the reasons for choosing them, and determinants of satisfaction with vascular access among patients with end-stage renal disease. Methods: The American Association of Kidney Patients Center for Patient Research and Education used the American Association of Kidney Patients patient engagement database to identify eligible adult hemodialysis patients. Participants completed an online survey consisting of 34 demographic, medical history, and hemodialysis history questions to determine which vascular access modalities were preferred and the reasons for these preferences. Results: Among 150 respondents (mean age 54 years, 53% females), hemodialysis was most frequently initiated with central venous catheter (64%) while the most common currently used vascular access was arteriovenous fistula (66%). Most (86%) patients previously received an arteriovenous fistula, among whom 77% currently used the arteriovenous fistula for vascular access. Older patients and males were more likely to initiate hemodialysis with an arteriovenous fistula. The factors most frequently reported as important in influencing the selection of vascular access modality included infection risk (87%), physician recommendation (84%), vascular access durability (78%), risk of complications involving surgery (76%), and impact on daily activities (73%); these factors were influenced by patient age, sex, and race. Satisfaction with current vascular access was 90% with arteriovenous fistula, 79% with arteriovenous graft, and 67% with central venous catheter. Conclusion: Most end-stage renal disease patients continue to initiate hemodialysis with central venous catheter despite being associated with the lowest satisfaction rates. While arteriovenous fistula was associated with the highest satisfaction rate, there are significant barriers to adoption that vary based on patient demographics and perception of procedure invasiveness.


2020 ◽  
Vol 42 (1) ◽  
pp. 53-58
Author(s):  
Artur Quintiliano ◽  
Marcel Rodrigues Gurgel Praxedes

Abstract Introduction: Invasive procedures performed by trained nephrologists can reduce delays in making a definitive vascular access, complications, number of procedures on the same patient, and costs for the Public Health System. Objective: to demonstrate that a long-term tunneled central venous catheter (LTCVC) implanted by a nephrologist is safe, effective, and associated with excellent results. Methods: A retrospective study analyzed 149 consecutively performed temporary-to-long-term tunneled central venous catheter conversions in the operating room (OR) from a dialysis facility from March 2014 to September 2017. The data collected consisted of the total procedures performed, demographic characteristics of the study population, rates of success, aborted procedure, failure, complications, and catheter survival, and costs. Results: the main causes of end stage renal disease (ESRD) were systemic arterial hypertension and diabetes mellitus, 37.9% each. Patients had a high number of previous arteriovenous fistula (1.72 ± 0.84) and temporary catheter (2.87 ± 1.9) attempts until a definitive vascular access was achieved, while the preferred vascular site was right internal jugular vein (80%). Success, abortion, and failure rates were 93.3%, 2.7% and 4%, respectively, with only 5.36% of complications (minors). Overall LTCVC survival rates over 1, 3, 6, and 12 months were 93.38, 71.81, 54.36, and 30.2%, respectively, with a mean of 298 ± 280 days (median 198 days). The procedure cost was around 496 dollars. Catheter dysfunction was the main reason for catheter removal (34%). Conclusion: Our analysis shows that placement of LTCVC by a nephrologist in an OR of a dialysis center is effective, safe, and results in substantial cost savings.


2021 ◽  
pp. 112972982110212
Author(s):  
Ahmet Murt ◽  
Serap Yadigar ◽  
Serkan Feyyaz Yalin ◽  
Mevlut Tamer Dincer ◽  
Ergun Parmaksiz ◽  
...  

Background: While COVID-19 in chronic hemodialysis patients has high mortality and the pandemic will not end in the near future, effective follow up strategies should be implemented for these patients. Surgeries have been triaged according to their level of urgencies and arteriovenous fistula (AVF) operations were among elective surgeries. This study aimed to analyze the effect of vascular access on the outcomes of hemodialysis patients who had COVID-19. Methods: One hundred four hemodialysis patients who had COVID-19 were retrospectively analyzed. Seventy-two of them had AVF as the vascular access while 32 of them had tunneled catheters. Inflammatory markers and outcomes of patients with AVFs and catheters were compared. A logistic regression analysis was performed in order to define factors that contribute to better outcomes in hemodialysis patients. Results: COVID-19 had high mortality rate in hemodialysis patients (36.5%). Patients with catheters have higher peak ferritin levels ( p = 0.02) and longer hospital stay ( p = 0.00). Having AVF as the vascular access (OR = 3.36; 95% CI: 1.05–10.72; p = 0.041) and using medium cut-off dialyzers (OR = 7.99; 95% CI: 1.53–41.65; p = 0.014) were related to higher survival of the patients. COVID severity was inversely proportional to the survival ( p = 0.000) Conclusions: AVFs contribute to higher survival of hemodialysis patients with COVID-19. Even in the pandemic era, end stage renal disease patients should be given the opportunity to have their vascular access properly created.


2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Qisu Ying ◽  
Yong Mao ◽  
Xiangcheng Xie ◽  
Ping Wu ◽  
Jilin Ma ◽  
...  

Objective. To investigate the initial hemodialysis vascular access in Hangzhou and provide evidence for improving the use of autologous arteriovenous fistula by identifying factors associated with the choice of initial vascular access. Methods. We retrospectively studied the initial hemodialysis vascular access of 257 patients in five hemodialysis units in Hangzhou of China during a 21-month period (January 2018 to September 2019). A logistic regression was used to identify the risk factors of failing to use an arteriovenous fistula at the initiation of hemodialysis. Results. (1) 257 participants with mean age 67.65 ± 13.43 years old were reviewed, including 165 males (64.2%) and 92 females (35.8%). The etiologies of end-stage renal disease included diabetic nephropathy (37.35%), chronic glomerulonephritis (31.13%), hypertensive nephropathy (14.01%), and other diseases (17.51%). Only 51 patients (19.84%) received arteriovenous fistula, whereas the remaining 206 patients (80.16%) initiated dialysis with a central venous catheter. (2) Logistic regression analysis revealed that the independent risk factors for central venous catheter at the initial hemodialysis were age >70 years old ( OR = 4.827 , p < 0.01 versus ≤70 years old), chronic glomerulonephritis as the primary etiology ( OR = 2.565 , p < 0.05 versus nonchronic glomerulonephritis) and eGFR <8.5 mL/min/1.73m2 ( OR = 2.283 , p < 0.05 versus eGFR ≥8.5 mL/min/1.73m2). Conclusion. The proportion of patients using arteriovenous fistula as the initial hemodialysis vascular access in Hangzhou was still low. The choice of vascular access for the first hemodialysis was related to age, eGFR, and the primary etiology of end-stage renal disease. Increasing the proportion of planned vascular access and arteriovenous fistula at the initiation of hemodialysis is still our current goal.


Renal Failure ◽  
1995 ◽  
Vol 17 (5) ◽  
pp. 589-593 ◽  
Author(s):  
Susan Crowley ◽  
Richard Morrissey ◽  
Eugene Silverman ◽  
William Yudt ◽  
Przemyslaw Hirszel

2020 ◽  
Vol 15 (3) ◽  
pp. 249-263
Author(s):  
Maria Aktsiali ◽  
Theodora Papachrysanthou ◽  
Ioannis Griveas ◽  
Christos Andriopoulos ◽  
Panagiotis Sitaras ◽  
...  

Background: Due to the premium rate of Chronic Kidney Disease, we have increased our knowledge with respect to diagnosis and treatment of Bone Mineral Disease (BMD) in End- Stage Renal Disease (ESRD). Currently, various treatment options are available. The medication used for Secondary Hyper-Parathyroidism gives promising results in the regulation of Ca, P and Parathormone levels, improving the quality of life. The aim of the present study was to investigate the relation of cinacalcet administration to not only parathormone, Ca and P but also to anemia parameters such as hematocrit and hemoglobin. Materials and Methods: retrospective observational study was conducted in a Chronic Hemodialysis Unit. One-hundred ESRD patients were recruited for twenty-four months and were evaluated on a monthly rate. Biochemical parameters were related to medication prescribed and the prognostic value was estimated. Cinacalcet was administered to 43 out of 100 patients in a dose of 30-120 mg. Results: Significant differences were observed in PTH, Ca and P levels with respect to Cinacalcet administration. Ca levels appeared to be higher at 30mg as compared to 60mg cinacalcet. Furthermore, a decreasing age-dependent pattern was observed with respect to cinacalcet dosage. A positive correlation was observed between Dry Weight (DW) and cinacalcet dose. Finally, a positive correlation between Hematocrit and Hemoglobin and cinacalcet was manifested. Conclusions: Cinacalcet, is a potential cardiovascular and bone protective agent, which is approved for use in ESRD patients to assist SHPT. A novel information was obtained from this study, regarding the improvement of the control of anemia.


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