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Kobzeva-Herzog AJ, Levin SR, Young S, McNamara TE, Alonso AG, Farber A, King EG, Siracuse JJ. Assessing Time to Removal of Tunneled Dialysis Catheters after Arteriovenous Access Creation. Ann Vasc Surg 2024; 102:35-41. [PMID: 38377711 DOI: 10.1016/j.avsg.2023.12.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 02/22/2024]
Abstract
BACKGROUND Tunneled dialysis catheters (TDCs) are a temporary bridge until definitive arteriovenous (AV) access is established. Our objective was to evaluate the time to TDC removal in patients who underwent AV access creations with TDCs already in place. METHODS A single-center analysis of all AV access creations in patients with TDCs was performed (2014-2020). Primary outcome was time to TDC removal after access creation. RESULTS There were 364 AV access creations with TDCs in place. The average age was 58 years, 44% of patients were female, and 64% were Black. The median time to TDC removal was 113 days (range, 22-931 days) with 71.4% having a TDC >90 days after access creation. Patients with TDC >90 days were often older (60 vs. 54.7), had hypertension (98.1% vs. 93.3%), were diabetic (65.4% vs. 47.1%), and had longer average time to maturation (107.1 vs. 55.4 days, P < 0.001) and first access (114 vs. 59.4 days, P < 0.001). Multivariable analysis showed that older age was associated with prolonged TDC placement (odds ratio [OR] 1.03, 95% confidence interval [CI] 1.01-1.05, P = 0.005) and prosthetic graft use was associated with shorter TDC indwelling time (OR 0.09, 95% CI 0.04-0.23, P ≤ 0.001). Kaplan-Meier analysis showed that 87% of TDCs were removed at 1 year. CONCLUSIONS The majority of patients with TDCs who underwent AV access creation had prolonged TDC placement. Prosthetic graft use was associated with shorter catheter times. Close follow-up after access placement, improving maturation times, and access type selection should be considered to shortened TDC times.
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Affiliation(s)
- Anna J Kobzeva-Herzog
- Division of Vascular and Endovascular Surgery, Boston University Chobanian & Avedisian School of Medicine, Boston Medical Center, Boston, MA
| | - Scott R Levin
- Division of Vascular and Endovascular Surgery, Boston University Chobanian & Avedisian School of Medicine, Boston Medical Center, Boston, MA
| | - Sara Young
- Division of Vascular and Endovascular Surgery, Boston University Chobanian & Avedisian School of Medicine, Boston Medical Center, Boston, MA
| | - Thomas E McNamara
- Division of Vascular and Endovascular Surgery, Boston University Chobanian & Avedisian School of Medicine, Boston Medical Center, Boston, MA
| | - Andrea G Alonso
- Division of Vascular and Endovascular Surgery, Boston University Chobanian & Avedisian School of Medicine, Boston Medical Center, Boston, MA
| | - Alik Farber
- Division of Vascular and Endovascular Surgery, Boston University Chobanian & Avedisian School of Medicine, Boston Medical Center, Boston, MA
| | - Elizabeth G King
- Division of Vascular and Endovascular Surgery, Boston University Chobanian & Avedisian School of Medicine, Boston Medical Center, Boston, MA
| | - Jeffrey J Siracuse
- Division of Vascular and Endovascular Surgery, Boston University Chobanian & Avedisian School of Medicine, Boston Medical Center, Boston, MA.
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Kanbay M, Basile C, Battaglia Y, Mantovani A, Yavuz F, Pizzarelli F, Luyckx VA, Covic A, Liakopoulos V, Mitra S. Shared decision making in elderly patients with kidney failure. Nephrol Dial Transplant 2024; 39:742-751. [PMID: 37742209 PMCID: PMC11045282 DOI: 10.1093/ndt/gfad211] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Indexed: 09/26/2023] Open
Abstract
'Elderly' is most commonly defined as an individual aged 65 years or older. However, this definition fails to account for the differences in genetics, lifestyle and overall health that contribute to significant heterogeneity among the elderly beyond chronological age. As the world population continues to age, the prevalence of chronic diseases, including chronic kidney disease (CKD), is increasing and CKD frequently progresses to kidney failure. Moreover, frailty represents a multidimensional clinical entity highly prevalent in this population, which needs to be adequately assessed to inform and support medical decisions. Selecting the optimal treatment pathway for the elderly and frail kidney failure population, be it haemodialysis, peritoneal dialysis or conservative kidney management, is complex because of the presence of comorbidities associated with low survival rates and impaired quality of life. Management of these patients should involve a multidisciplinary approach including doctors from various specialties, nurses, psychologists, dieticians and physiotherapists. Studies are mostly retrospective and observational, lacking adjustment for confounders or addressing selection and indication biases, making it difficult to use these data to guide treatment decisions. Throughout this review we discuss the difficulty of making a one-size-fits-all recommendation for the clinical needs of older patients with kidney failure. We advocate that a research agenda for optimization of the critical issues we present in this review be implemented. We recommend prospective studies that address these issues, and systematic reviews incorporating the complementary evidence of both observational and interventional studies. Furthermore, we strongly support a shared decision-making process matching evidence with patient preferences to ensure that individualized choices are made regarding dialysis vs conservative kidney management, dialysis modality and optimal vascular access.
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Affiliation(s)
- Mehmet Kanbay
- Division of Nephrology, Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Carlo Basile
- Associazione Nefrologica Gabriella Sebastio, Martina Franca, Italy
| | - Yuri Battaglia
- Department of Medicine, University of Verona, Verona, Italy
- Nephrology and Dialysis Unit, Pederzoli Hospital, Peschiera del Garda, Verona, Italy
| | - Alessandro Mantovani
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy
| | - Furkan Yavuz
- Division of Nephrology, Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | | | - Valerie A Luyckx
- Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Paediatrics and Child Health, University of Cape Town, South Africa
- Department of Public and Global Health, Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Adrian Covic
- Nephrology Clinic, Dialysis and Renal Transplant Center – ‘C.I. Parhon’ University Hospital, and ‘Grigore T. Popa’ University of Medicine, Iasi, Romania
| | - Vassilios Liakopoulos
- Second Department of Nephrology, AHEPA University Hospital, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Sandip Mitra
- Manchester Academy of Health Sciences Centre (MAHSC), Manchester University Hospitals and University of Manchester, Manchester, UK
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3
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Wang KM, Gelabert H, Jimenez JC, Rigberg D, Woo K. Short-term mortality and revisions to promote maturation after arteriovenous fistula creation. J Vasc Surg 2024; 79:918-924. [PMID: 38092309 DOI: 10.1016/j.jvs.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/01/2023] [Accepted: 12/05/2023] [Indexed: 01/29/2024]
Abstract
OBJECTIVE Arteriovenous fistula (AVF) for hemodialysis access is traditionally considered superior to grafts due to infection resistance and purported improved patency. However, challenges to AVF maturation and limited patient survival may reduce AVF benefits. The objective of this study is to identify factors associated with risk of AVF requiring revision before maturation and/or mortality within 2 years of creation. METHODS We performed a retrospective review of 250 AVFs created between May 2017 and November 2020 at a single institution. Maturation was defined as the date the surgeon deemed the AVF ready for use or the patient successfully used the AVF for dialysis. The Risk Analysis Index was used to calculate frailty. The primary outcome was a composite of endovascular/surgical revision to promote maturation and/or mortality within 2 years of AVF creation (REVDEAD). The primary outcome was categorized as met if the patient required a revision to promote maturation or if the patient experienced mortality within 2 years of AVF creation, or if both occurred. REVDEAD was compared with those who did not meet the primary outcome and will be referred to as NOREVDEAD. RESULTS Survival at 2 years after AVF creation was 82%, and 54 (22%) patients underwent AVF revision. Of those, 31 (59%) patients progressed to AVF maturation. Of the 250 AVFs, 91 (36%) met the primary outcome of REVDEAD and 159 (64%) did not (NOREVDEAD). There was no difference between the REVDEAD and NOREVDEAD groups in age (P = .18), sex (P = .75), White race (P = .97), Hispanic ethnicity (P = .62), obesity (P = .76), coronary artery disease (P = .07), congestive heart failure (P = .29), diabetes mellitus (P = .78), chronic obstructive pulmonary disease (P = .10), dialysis status (P = .63), hypertension (P = .32), peripheral arterial disease (P = .34), or dysrhythmia (P = .13). There was no difference between the groups in the forearm vs the upper arm location of AVF (P = .42) or the vein diameter (P = .58). Forearm access, as opposed to upper arm AVF creation, was associated with higher rate of revision before maturation (P = .05). More patients in REVDEAD were frail or very frail (60% vs 48%, P = .05). Of the AVFs that matured, maturation required longer time in REVDEAD at 110.0 ± 9.1 days vs 78.8 ± 5.6 days (mean ± standard deviation) (P = .003). Adjusted for the vein diameter and the forearm vs the upper arm, frailty increased the odds of REVDEAD by 1.9 (95% confidence interval: 1.1, 3.3). CONCLUSIONS Frail patients who underwent AVF were significantly more likely to die within 2 years of AVF creation with no significant association between frailty and the need for revisions to promote maturation. Forearm AVFs were more likely to require revisions; in patients who are frail, with a high likelihood of 2-year mortality, graft may be more appropriate than AVF. If AVF is being considered in a frail patient, upper arm AVFs should be prioritized over forearm AVFs.
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Affiliation(s)
- Karissa M Wang
- Division of Vascular Surgery, Department of Surgery, University of California, Los Angeles, Los Angeles, CA
| | - Hugh Gelabert
- Division of Vascular Surgery, Department of Surgery, University of California, Los Angeles, Los Angeles, CA
| | - Juan Carlos Jimenez
- Division of Vascular Surgery, Department of Surgery, University of California, Los Angeles, Los Angeles, CA
| | - David Rigberg
- Division of Vascular Surgery, Department of Surgery, University of California, Los Angeles, Los Angeles, CA
| | - Karen Woo
- Division of Vascular Surgery, Department of Surgery, University of California, Los Angeles, Los Angeles, CA.
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4
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Allon M, Al-Balas A, Young CJ, Cutter GR, Lee T. Predialysis Vascular Access Placement and Catheter Use at Hemodialysis Initiation. Clin J Am Soc Nephrol 2024; 19:67-75. [PMID: 37843844 PMCID: PMC10843203 DOI: 10.2215/cjn.0000000000000317] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 10/09/2023] [Indexed: 10/17/2023]
Abstract
BACKGROUND Current guidelines encourage placement of an arteriovenous (AV) fistula in patients with advanced CKD to avoid initiation of hemodialysis with a central venous catheter. However, the relative merits of predialysis placement of an AV fistula or graft have been poorly studied. METHODS This study included 380 patients (mean age 59±14 years, 73% Black patients, 51% male) from a large academic medical center who underwent predialysis placement of an AV fistula (286) or AV graft (94). The study quantified three end points: time from access placement to initiation of dialysis, likelihood of starting hemodialysis without a catheter, and number of vascular access procedures before dialysis initiation. RESULTS The eGFR at access surgery was <10, 10-14, and ≥15 ml/min per 1.73 m 2 in 87 (23%), 179 (47%), and 114 (30%) patients, respectively. The median time from access surgery to hemodialysis initiation was 69, 156, and 429 days in patients with an eGFR of <10, 10-14, and ≥15 ml/min per 1.73 m 2 , respectively ( P < 0.001). Hemodialysis was initiated within 2 years of access surgery in 298 (78%) of the patients. Catheter-free hemodialysis initiation was higher in patients with an AV graft versus an AV fistula when the eGFR was <10 ml/min per 1.73 m 2 (88% versus 43%; odds ratio [OR], 9.10 [95% confidence interval, 2.74 to 26.4]) and when the eGFR was 10-14 ml/min per 1.73 m 2 (88% versus 54%; OR, 6.05 [2.35 to 15.0]) but similar when the eGFR was ≥15 ml/min per 1.73 m 2 (90% versus 75%; OR, 3.00 [0.48 to 34.9]). Patients undergoing an AV fistula were more likely to undergo an angioplasty (11% versus 0%, P < 0.001), surgical access revision (26% versus 8%, P < 0.001), a second access placement (16% versus 6%, P = 0.02), and a catheter insertion (32% versus 11%, P < 0.001). CONCLUSIONS Among patients with CKD undergoing vascular access surgery when their eGFR was <15 ml/min per 1.73 m 2 , catheter use at dialysis initiation was much less likely when an AV graft, rather than an AV fistula, was placed.
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Affiliation(s)
- Michael Allon
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Alian Al-Balas
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Carlton J. Young
- Division of Transplant Surgery, University of Alabama at Birmingham, Birmingham, Alabama
| | - Gary R. Cutter
- Department of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - Timmy Lee
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama
- Veterans Affairs Medical Center, University of Alabama at Birmingham, Birmingham, Alabama
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5
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Murea M, Gardezi AI, Goldman MP, Hicks CW, Lee T, Middleton JP, Shingarev R, Vachharajani TJ, Woo K, Abdelnour LM, Bennett KM, Geetha D, Kirksey L, Southerland KW, Young CJ, Brown WM, Bahnson J, Chen H, Allon M. Study protocol of a randomized controlled trial of fistula vs. graft arteriovenous vascular access in older adults with end-stage kidney disease on hemodialysis: the AV access trial. BMC Nephrol 2023; 24:43. [PMID: 36829135 PMCID: PMC9960188 DOI: 10.1186/s12882-023-03086-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 02/13/2023] [Indexed: 02/26/2023] Open
Abstract
BACKGROUND Treatment of end-stage kidney disease (ESKD) with hemodialysis requires surgical creation of an arteriovenous (AV) vascular access-fistula (AVF) or graft (AVG)-to avoid (or limit) the use of a central venous catheter (CVC). AVFs have long been considered the first-line vascular access option, with AVGs as second best. Recent studies have suggested that, in older adults, AVGs may be a better strategy than AVFs. Lacking evidence from well-powered randomized clinical trials, integration of these results into clinical decision making is challenging. The main objective of the AV Access Study is to compare, between the two types of AV access, clinical outcomes that are important to patients, physicians, and policy makers. METHODS This is a prospective, multicenter, randomized controlled trial in adults ≥ 60 years old receiving chronic hemodialysis via a CVC. Eligible participants must have co-existing cardiovascular disease, peripheral arterial disease, and/or diabetes mellitus; and vascular anatomy suitable for placement of either type of AV access. Participants are randomized, in a 1:1 ratio, to a strategy of AVG or AVF creation. An estimated 262 participants will be recruited across 7 healthcare systems, with average follow-up of 2 years. Questionnaires will be administered at baseline and semi-annually. The primary outcome is the rate of CVC-free days per 100 patient-days. The primary safety outcome is the cumulative incidence of vascular access (CVC or AV access)-related severe infections-defined as access infections that lead to hospitalization or death. Secondary outcomes include access-related healthcare costs and patients' experiences with vascular access care between the two treatment groups. DISCUSSION In the absence of studies using robust and unbiased research methodology to address vascular access care for hemodialysis patients, clinical decisions are limited to inferences from observational studies. The goal of the AV Access Study is to generate evidence to optimize vascular access care, based on objective, age-specific criteria, while incorporating goals of care and patient preference for vascular access type in clinical decision-making. TRIAL REGISTRATION This study is being conducted in accordance with the tenets of the Helsinki Declaration, and has been approved by the central institutional review board (IRB) of Wake Forest University Health Sciences (approval number: 00069593) and local IRB of each participating clinical center; and was registered on Nov 27, 2020, at ClinicalTrials.gov (NCT04646226).
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Affiliation(s)
- Mariana Murea
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA. .,Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA.
| | - Ali I Gardezi
- Division of Nephrology, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Mathew P Goldman
- Department of Vascular and Endovascular Surgery, Wake Forest School of Medicine, Winston- Salem, NC, USA
| | - Caitlin W Hicks
- Department of Surgery, Division of Vascular Surgery and Endovascular Therapy, Johns Hopkins University School of Medicine, 600 N Wolfe St, Halsted 668, Baltimore, MD, USA
| | - Timmy Lee
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.,Division of Nephrology, Birmingham Veterans Affairs Medical Center, Birmingham, AL, USA
| | - John P Middleton
- Division of Nephrology, Department of Medicine, Duke University Medical Center, Durham, NC, USA
| | - Roman Shingarev
- Department of Kidney Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Tushar J Vachharajani
- Department of Kidney Medicine, Glickman Urological & Kidney Institute, Cleveland Clinic Lerner College of Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Karen Woo
- Division of Vascular Surgery and Endovascular Therapy, Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Lama M Abdelnour
- Department of Medicine, Division of Nephrology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Kyla M Bennett
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Duvuru Geetha
- Division of Nephrology, Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Lee Kirksey
- Department of Vascular Surgery, Cleveland Clinic, Cleveland, OH, USA
| | - Kevin W Southerland
- Division of Vascular & Endovascular Surgery, Department of Surgery, Duke University Medical Center, Durham, NC, USA
| | - Carlton J Young
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - William M Brown
- Department of Biostatistics and Data Science, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Judy Bahnson
- Department of Biostatistics and Data Science, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Haiying Chen
- Department of Biostatistics and Data Science, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Michael Allon
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA. .,Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
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6
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Murea M, Woo K. New Frontiers in Vascular Access Practice: From Standardized to Patient-tailored Care and Shared Decision Making. KIDNEY360 2021; 2:1380-1389. [PMID: 35369664 PMCID: PMC8676387 DOI: 10.34067/kid.0002882021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 06/07/2021] [Indexed: 02/04/2023]
Abstract
Vascular access planning is critical in the management of patients with advanced kidney disease who elect for hemodialysis for RRT. Policies put in place more than two decades ago attempted to standardize vascular access care around the model of optimal, namely arteriovenous fistula, and least preferred, namely central venous catheter, type of access. This homogenized approach to vascular access care emerged ineffective in the increasingly heterogeneous and complex dialysis population. The most recent vascular access guidelines acknowledge the limitations of standardized care and encourage tailoring vascular access care on the basis of patient and disease characteristics. In this article, we discuss available literature in support of patient-tailored access care on the basis of differences in vascular access outcomes by biologic and social factors-age, sex, and race. Further, we draw attention to the overlooked dimension of patient-reported preferences and shared decision making in the practice of vascular access planning. We discuss milestones to overcome as requisite steps to implement effective shared decision making in vascular access care. Finally, we take into consideration local practice cofactors as major players in vascular access fate. We conclude that a personalized approach to hemodialysis vascular access will require dynamic care specifically relevant to the individual on the basis of biologic factors, fluctuating clinical needs, values, and preferences.
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Affiliation(s)
- Mariana Murea
- Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Karen Woo
- Department of Surgery, University of California Los Angeles, Los Angeles, California
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7
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Abstract
The Fistula First Breakthrough Initiative, founded in 2003, was responsible for changing the access profile in the United States, increasing the prevalence of arteriovenous fistulas (AVFs) by 50% and reducing that of arteriovenous grafts (AVGs). However, the concept that AVFs are always the best access for all patients has been challenged. Discussion points are: (1) the questionable survival benefit of AVFs over AVGs, if one takes into account the high rates of primary AVF failure; (2) the potential benefits of using AVGs for greater primary success; and (3) the questionable benefit of AVFs over AVGs in patients with shorter survival, such as the elderly. The high rate of primary failure and maturation procedures leads to prolonged use of catheters, and it is one of the weaknesses of the fistula first strategy. AVGs proved to be better than AVFs as a second access after the failure of a first AVF, and in patients with non-ideal vessels, with greater primary success and reduced catheter times. AVGs appear to have a similar survival to AVFs in patients older than 80 years, with less primary failures and interventions to promote maturation. The most recent KDOQUI guidelines suggest an individualized approach in access planning, taking into account life expectancy, comorbidities and individual vascular characteristics, with the aim of chosing adequate access for the right patient, at the right time, for the right reasons.
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8
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Kingsmore D, Stevenson K, Jackson A, Richarz S, Isaak A, White B, Thomson P. Application and implications of a standardised reporting system for arteriovenous access graft infection. J Vasc Access 2021; 23:353-359. [PMID: 33567938 DOI: 10.1177/1129729820987382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
INTRODUCTION The perception that arteriovenous graft infection (AVGi) is frequent and severe is not based on contemporary data from large units using modern AVG. Furthermore, older reports compounded misperceptions by using non-standardised reporting that prevents easy comparison against the alternative modalities. The aim of this article is to use a recently published reporting scheme to analyse the frequency, management and outcome of AVGi in a large series of sequential early-cannulation AVG with long-term follow-up. METHODS A single-center series analysis was performed of 277 early-cannulation AVG with minimum 1-year follow-up (total 120,082 days). Infections relating to the AVG were classified, root-cause analysed and the outcomes presented. RESULTS Sixteen percent of all AVG implanted (51 episodes) developed infection related to the AVG. Primary AVGi (related to the insertion procedure or within 28 days) occurred in 9 (3%); secondary AVGi (related to AVG in use) occurred 33 times (rate 0.27/1000 haemodialysis days), at a mean of 382 days, and tertiary AVGi (in AVG no longer in use) occurred nine times. Only 1/3 of all AVGi led to bacteraemia, and ½ did not lead to loss of functional access. SUMMARY AVG infection is not common, caused a systemic infection in only one-third, did not lead to metastatic infection, and importantly, was treatable without loss of access in one-half of all cases. Using an objective system that discriminates between aetiology and outcome allows a more complete objective understanding of relative infection risks and outcomes for AVG that can inform discussions with patients requiring vascular access for haemodialysis.
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Affiliation(s)
- David Kingsmore
- Department of Vascular Surgery, Queen Elizabeth University Hospital, Glasgow, UK.,Renal and Transplant Surgery, Queen Elizabeth University Hospital, Glasgow, UK
| | - Karen Stevenson
- Renal and Transplant Surgery, Queen Elizabeth University Hospital, Glasgow, UK
| | - Andrew Jackson
- Renal and Transplant Surgery, Queen Elizabeth University Hospital, Glasgow, UK
| | - Sabine Richarz
- Renal and Transplant Surgery, Queen Elizabeth University Hospital, Glasgow, UK.,Department of Vascular Surgery, University Hospital Basel, Basel, Switzerland
| | - Andrej Isaak
- Renal and Transplant Surgery, Queen Elizabeth University Hospital, Glasgow, UK.,Department of Vascular Surgery, University Hospital Basel, Basel, Switzerland
| | - Beth White
- Department of Infectious Disease and Microbiology, Queen Elizabeth University Hospital, Glasgow, UK
| | - Peter Thomson
- Department of Nephrology, Queen Elizabeth University Hospital, Glasgow, UK
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9
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Halbert RJ, Nicholson G, Nordyke RJ, Pilgrim A, Niklason L. Patency of ePTFE Arteriovenous Graft Placements in Hemodialysis Patients: Systematic Literature Review and Meta-Analysis. KIDNEY360 2020; 1:1437-1446. [PMID: 35372887 PMCID: PMC8815525 DOI: 10.34067/kid.0003502020] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 10/08/2020] [Indexed: 04/29/2023]
Abstract
Arteriovenous grafts (AVGs) are an appropriate option for vascular access in certain hemodialysis patients. Expanded polytetrafluoroethylene (ePTFE) has become the dominant material for such grafts, due in part to innovations in graft design and surgical interventions to reduce complications and improve patency rates. Comprehensive evidence syntheses have not been conducted to update AVG performance in an era in which both access choice and ePTFE graft functioning may have changed. We conducted a systematic review and meta-analysis summarizing outcomes from recent studies of ePTFE AVGs in hemodialysis, following PRISMA standards. Literature searches were conducted in multiple databases to identify observational and interventional studies of AVG patency and infection risk. Primary, primary-assisted, and secondary patency rates were analyzed at 6, 12, 18, and 24 months postplacement. Kaplan-Meier graft survival plots were digitized to recreate individual patient-level data. Patency rates were pooled using a random effects model. We identified 32 studies meeting our selection criteria that were published from 2004 through 2019. A total of 38 study arms of ePTFE grafts were included, representing 3381 AVG accesses placed. The mean primary, primary-assisted, and secondary patency rates at 1 year were 41% (95% CI, 35% to 47%), 46% (95% CI, 41% to 51%), and 70% (95% CI, 64% to 75%), respectively. Mean 24-month patency rates were 28% (95% CI, 22% to 33%), 34% (95% CI, 27% to 41%), and 54% (95% CI, 47% to 61%), respectively. A high degree of heterogeneity across studies was observed. Overall risk of infection was not consistently reported, but among available studies the pooled estimate was 9% per patient-year (95% CI, 6% to 12%). This meta-analysis provides an up-to-date estimate of the performance of ePTFE AVGs, within the context of improved graft designs and improved interventional techniques.
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Affiliation(s)
| | | | | | | | - Laura Niklason
- Humacyte, Incorporated, Morrisville, North Carolina
- Yale University, New Haven, Connecticut
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10
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Farrington CA, Robbin ML, Lee T, Barker-Finkel J, Allon M. Early Predictors of Arteriovenous Fistula Maturation: A Novel Perspective on an Enduring Problem. J Am Soc Nephrol 2020; 31:1617-1627. [PMID: 32424000 DOI: 10.1681/asn.2019080848] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 03/26/2020] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Preoperative ultrasound mapping is routinely used to select vessels meeting minimal threshold diameters for surgical arteriovenous fistula (AVF) creation but fails to improve AVF maturation rates. This suggests a need to reassess the preoperative ultrasound criteria used to optimize AVF maturation. METHODS We retrospectively identified 300 catheter-dependent patients on hemodialysis with a new AVF created between 2010 and 2016. We then evaluated the associations of preoperative vascular measurements and hemodynamic factors with unassisted AVF maturation (successful use for dialysis without prior intervention) and overall maturation (successful use with or without prior intervention). Multivariable logistic regression was used to identify preoperative factors associated with unassisted and overall AVF maturation. RESULTS Unassisted AVF maturation associated with preoperative arterial diameter (adjusted odds ratio [aOR], 1.50 per 1-mm increase; 95% confidence interval [95% CI], 1.23 to 1.83), preoperative systolic BP (aOR, 1.16 per 10-mm Hg increase; 95% CI, 1.05 to 1.28), and left ventricular ejection fraction (aOR, 1.07 per 5% increase; 95% CI, 1.01 to 1.13). Overall AVF maturation associated with preoperative arterial diameter (aOR, 1.36 per 1-mm increase; 95% CI, 1.10 to 1.66) and preoperative systolic BP (aOR, 1.17; 95% CI, 1.06 to 1.30). Using receiver operating curves, the combination of preoperative arterial diameter, systolic BP, and left ventricular ejection fraction was fairly predictive of unassisted maturation (area under the curve, 0.69). Patient age, sex, race, diabetes, vascular disease, obesity, and AVF location were not associated with maturation. CONCLUSIONS Preoperative arterial diameter may be an under-recognized predictor of AVF maturation. Further study evaluating the effect of preoperative arterial diameter and other hemodynamic factors on AVF maturation is needed.
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Affiliation(s)
- Crystal A Farrington
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Michelle L Robbin
- Department of Radiology, University of Alabama at Birmingham, Birmingham Alabama
| | - Timmy Lee
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama.,Division of Nephrology, Veterans Affairs Medical Center, Birmingham, Alabama
| | - Jill Barker-Finkel
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, Alabama
| | - Michael Allon
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama
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11
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Takahashi EA, Harmsen WS, Misra S. Endovascular Arteriovenous Dialysis Fistula Intervention: Outcomes and Factors Contributing to Fistula Failure. Kidney Med 2020; 2:326-331. [PMID: 32734252 PMCID: PMC7380353 DOI: 10.1016/j.xkme.2020.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
RATIONALE & OBJECTIVE Primary patency is variable with arteriovenous fistulas, and many patients require angiographic procedures to obtain patency. Accordingly, we determined postintervention patency rates and contributing factors for fistula failure following intervention to establish secondary patency in non-dialysis-dependent patients with advanced chronic kidney disease following creation of an arteriovenous fistula. STUDY DESIGN Observational study from a single referral center. SETTING & PARTICIPANTS 210 non-dialysis-dependent patients with advanced chronic kidney disease who underwent upper-extremity fistula creation for anticipated dialysis between October 1995 and January 2015 and who required subsequent endovascular therapy to establish or maintain patency were reviewed. EXPOSURE Endovascular therapy for dialysis arteriovenous fistula primary patency failure. OUTCOMES Postintervention patency duration following endovascular therapy. ANALYTICAL APPROACH Descriptive study with outcomes determined using Cox proportional hazards models. RESULTS Multiple fistula configurations were reviewed: 138 (65.7%) brachiocephalic, 39 (18.6%) radiocephalic, 30 (14.3%) brachiobasilic, 2 (1.0%) ulnocephalic, and 1 (0.5%) radiobasilic. There were 261 initial stenoses treated. Postintervention primary patency is defined as the time from the index intervention to repeat intervention for stenosis. Postintervention primary-assisted patency is the time from the index intervention to thrombectomy for fistula thrombosis or change in modality. Postintervention secondary patency is the time from the index intervention to fistula abandonment. Median postintervention primary patency, postintervention primary-assisted patency, and secondary patency were 2.7, 3.2, and 3.6 years, respectively. The overall 1-year primary, primary-assisted, and secondary patency rates in this cohort were 53.0%, 87.7%, and 83.5%, respectively. Compared with radiocephalic fistulas, brachiocephalic fistulas had higher risk for postintervention primary patency loss (HR, 1.90; 95% CI, 1.13-3.20; P = 0.02). LIMITATIONS Dialysis fistula revascularization techniques varied. CONCLUSIONS The radiocephalic fistula configuration had the best postintervention primary patency in this cohort. Postintervention primary-assisted patency and secondary patency were not significantly different among different fistula configurations.
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Affiliation(s)
- Edwin A. Takahashi
- Department of Radiology, Mayo Clinic, Rochester, MN
- Division of Vascular and Interventional Radiology, Mayo Clinic, Rochester, MN
| | - William S. Harmsen
- Department of Radiology, Mayo Clinic, Rochester, MN
- Department of Clinical Statistics, Mayo Clinic, Rochester, MN
| | - Sanjay Misra
- Department of Radiology, Mayo Clinic, Rochester, MN
- Division of Vascular and Interventional Radiology, Mayo Clinic, Rochester, MN
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12
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Kosa SD, Gafni A, Thabane L, Lok CE. The Effect of Risk of Maturation Failure and Access Type on Arteriovenous Access-Related Costs among Hemodialysis Patients. KIDNEY360 2020; 1:248-257. [PMID: 35372922 PMCID: PMC8809272 DOI: 10.34067/kid.0001062019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 02/24/2020] [Indexed: 06/14/2023]
Abstract
BACKGROUND Several studies report lower costs associated with attaining and maintaining patency for arteriovenous (AV) fistulas as compared to AV grafts among patients receiving hemodialysis. However, these costs may vary according to the AV access's risk of failure to mature (FTM). The aim of this study was to examine the effect of AV access type and risk of FTM on the total costs of attaining and maintaining AV access patency over 1, 3, and 5 years postcreation, among incident accesses. METHODS All first AV access creations (January 1, 2002-January 1, 2018), revisions/resections, and interventions from a single academic institution were prospectively captured. The units costs (from 2011 in CA$) were estimated primarily through the provincial patient Ontario Case Costing Initiative database. The present value of total vascular access-related costs from a third-party payer perspective was calculated by multiplying specific unit costs by the number of AV access creations, revisions/resections, and interventions from the date of creation to 1, 3, and 5 years post creation. The potential associations of AV access type and FTM risk stratum with AV access cost were examined using log-linear models and generalized estimating equations. RESULTS A total of 906 patients were included in the study, of which 696 had fistulas and 210 had grafts. The median present value of total costs to attain and maintain AV access over 1, 3, and 5 years was positively associated with the highest FTM risk stratum in all models. It was not associated with AV access type when the interaction between AV access type and FTM risk stratum was considered. CONCLUSIONS The costs of attaining and maintaining AV access were increased among patients with high/very high FTM risk. Risk of FTM, related interventions, and costs should be considered when choosing vascular access type for an individual patient.
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Affiliation(s)
- Sarah D. Kosa
- Research, Kidney CARE Network International, Toronto, Ontario, Canada
- Toronto General Hospital Research Institute, Toronto, Ontario, Canada; and
- Department of Health Research, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Amiram Gafni
- Department of Health Research, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Lehana Thabane
- Department of Health Research, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Charmaine E. Lok
- Research, Kidney CARE Network International, Toronto, Ontario, Canada
- Toronto General Hospital Research Institute, Toronto, Ontario, Canada; and
- Department of Health Research, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
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13
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Medricka M, Janeckova J, Jarosciakova J, Bachleda P. Creation of arteriovenous fistula for hemodialysis in the older population. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2020; 165:179-183. [PMID: 32285849 DOI: 10.5507/bp.2020.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/13/2020] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE To evaluate the results of arteriovenous fistula (AVF) created for haemodialysis in patients older than 65 years of age. SUBJECTS AND METHODS A retrospective analysis of patients with AVF or arteriovenous graft (AVG) creation, who were older than 65 years of age and were operated on at the II. Surgical Clinic at the University Hospital in Olomouc from 2014 - 2018 was performed. RESULTS 212 patients were evaluated and a total of 239 AVF/AVG were created. 194 AVFs (81.18%) and 45 AVGs (18.82%) were created. Primary failure was seen in 19 arteriovenous fistulas (9.8%) and 2 arteriovenous grafts (4.44%). The primary patency of AVF was 69.9%, 62.8% after 12 and 24 months, respectively, and in the case of AVG it was 54.7% and 32.3% after 12 and 24 months, respectively. Primarily assisted patency of AVF was 77.6% and 66.3% after 12 and 24 months, respectively, and in case of AVG it was 69.1% and 39.7% after 12 and 24 months, respectively. Secondary patency of AVF was 77.6% and 66.3% after 12 and 24 months, respectively, and for AVG it was 69.1% and 39.7% after 12 and 24 months, respectively. CONCLUSION The type of vascular access should be selected based on a thorough, protocol-based examination. In most seniors, AVF is the method of choice. The AVG is a suitable choice for patients with an exhausted venous bed, in acute need of haemodialysis, in the elderly and in females. A "customized" approach should be matter of fact for older generations.
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Affiliation(s)
- Monika Medricka
- Department of Vascular and Transplantation Surgery, University Hospital Olomouc, Czech Republic
| | - Jana Janeckova
- Department of Vascular and Transplantation Surgery, University Hospital Olomouc, Czech Republic
| | - Julia Jarosciakova
- Department of Vascular and Transplantation Surgery, University Hospital Olomouc, Czech Republic
| | - Petr Bachleda
- Department of Vascular and Transplantation Surgery, University Hospital Olomouc, Czech Republic
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Diwan TS, Cuffy MC, Linares-Cervantes I, Govil A. Impact of obesity on dialysis and transplant and its management. Semin Dial 2020; 33:279-285. [PMID: 32277512 DOI: 10.1111/sdi.12876] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Obesity is increasing to unprecedented levels, including in the end-stage kidney disease population, where upwards of 60% of kidney transplant patients are overweight or obese. Obesity poses additional challenges to the care of the dialysis patient, including difficulties in creating vascular access and inserting Tenckhoff catheters, higher rates of catheter malfunction and peritonitis, the need for longer and/or more frequent dialysis (or peritoneal dialysis [PD] exchanges) to achieve adequate clearance, increased metabolic complications particularly with PD, and obesity is a barrier to kidney transplantation. In this article, we review special considerations in performing PD, hemodialysis and transplant in the obese patient, as well as the evidence behind medical and surgical management of obesity in dialysis patients.
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Affiliation(s)
- Tayyab S Diwan
- Division of Transplantation, Department of Surgery, University of Cincinnati, Cincinnati, OH, USA
| | - Madison C Cuffy
- Division of Transplantation, Department of Surgery, University of Cincinnati, Cincinnati, OH, USA
| | - Ivan Linares-Cervantes
- Division of Transplantation, Department of Surgery, University of Cincinnati, Cincinnati, OH, USA
| | - Amit Govil
- Division of Nephrology, Department of Medicine, University of Cincinnati, Cincinnati, OH, USA
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15
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Lok CE, Huber TS, Lee T, Shenoy S, Yevzlin AS, Abreo K, Allon M, Asif A, Astor BC, Glickman MH, Graham J, Moist LM, Rajan DK, Roberts C, Vachharajani TJ, Valentini RP. KDOQI Clinical Practice Guideline for Vascular Access: 2019 Update. Am J Kidney Dis 2020; 75:S1-S164. [PMID: 32778223 DOI: 10.1053/j.ajkd.2019.12.001] [Citation(s) in RCA: 1001] [Impact Index Per Article: 250.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 12/09/2019] [Indexed: 02/07/2023]
Abstract
The National Kidney Foundation's Kidney Disease Outcomes Quality Initiative (KDOQI) has provided evidence-based guidelines for hemodialysis vascular access since 1996. Since the last update in 2006, there has been a great accumulation of new evidence and sophistication in the guidelines process. The 2019 update to the KDOQI Clinical Practice Guideline for Vascular Access is a comprehensive document intended to assist multidisciplinary practitioners care for chronic kidney disease patients and their vascular access. New topics include the end-stage kidney disease "Life-Plan" and related concepts, guidance on vascular access choice, new targets for arteriovenous access (fistulas and grafts) and central venous catheters, management of specific complications, and renewed approaches to some older topics. Appraisal of the quality of the evidence was independently conducted by using a Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach, and interpretation and application followed the GRADE Evidence to Decision frameworks. As applicable, each guideline statement is accompanied by rationale/background information, a detailed justification, monitoring and evaluation guidance, implementation considerations, special discussions, and recommendations for future research.
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16
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Sutaria R, Gilbert JA. Single-centre experience of an early cannulation graft for haemodialysis access. J Vasc Access 2020; 21:883-891. [PMID: 32141378 DOI: 10.1177/1129729820909026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
INTRODUCTION As the demographics of the population changes, increasing challenges are being faced in providing reliable access for dialysis. This article reports on the outcomes from the largest series to date using the early cannulation graft Flixene in a single centre. METHODS Between May 2012 and March 2018, 141 Flixene grafts were placed for dialysis access. The outcomes of the arteriovenous grafts were reviewed retrospectively from electronically held records and imaging. RESULTS In 75 patients, placement of Flixene graft was performed on an emergency basis and in 66 patients on a planned elective list. The 12-month primary, assisted primary and secondary patency rates were 48.7%, 56.6% and 83.6%, respectively. Eight (5.7%) patients developed infections of the graft during the follow-up period. CONCLUSION In our experience, we have found the use of the early cannulation graft Flixene to be safe with a low complication rate and favourable patency rates. We believe these early cannulation grafts provide a useful addition for vascular access surgeons preventing the use of tunnelled lines and providing more flexibility in the timing of placing a graft for dialysis.
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Affiliation(s)
- Rupesh Sutaria
- Wessex Kidney Centre, Queen Alexandra Hospital, Portsmouth, UK
| | - James A Gilbert
- Oxford Transplant Centre, Oxford University Hospitals NHS Foundation Trust, Churchill Hospital, Oxford, UK
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17
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Kingsmore DB, Stevenson KS, Jackson A, Desai SS, Thompson P, Karydis N, Franchin M, White B, Tozzi M, Isaak A. Arteriovenous Access Graft Infection: Standards of Reporting and Implications for Comparative Data Analysis. Ann Vasc Surg 2020; 63:391-398. [DOI: 10.1016/j.avsg.2019.08.081] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/14/2019] [Accepted: 08/14/2019] [Indexed: 11/28/2022]
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18
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Takashima T, Nonaka Y, Nakashima Y, Nonaka E, Matsumoto K, Fukuda M, Rikitake S, Miyazono M, Rikitake K, Ikeda Y. Use of the Dorsal Vein of the Hand for Arteriovenous Fistula Creation. Ann Vasc Surg 2019; 61:466.e7-466.e11. [DOI: 10.1016/j.avsg.2019.04.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 03/20/2019] [Accepted: 04/12/2019] [Indexed: 11/25/2022]
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19
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Viecelli AK, Lok CE. Hemodialysis vascular access in the elderly-getting it right. Kidney Int 2019; 95:38-49. [PMID: 30606427 DOI: 10.1016/j.kint.2018.09.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/21/2018] [Accepted: 09/11/2018] [Indexed: 01/01/2023]
Abstract
Choosing the optimal hemodialysis vascular access for the elderly patient is best achieved by a patient-centered coordinated multidisciplinary team approach that aligns the patient's end-stage kidney disease Life-Plan, i.e., the individual treatment approach (supportive care, time-limited or long-term kidney replacement therapy, or combination thereof) and selection of dialysis modality (peritoneal dialysis versus hemodialysis) with the most suitable dialysis access. Finding the right balance between the patient's preferences, the likelihood of access function and survival, and potential complications in the context of available resources and limited patient survival can be extremely challenging. The framework for choosing the most appropriate vascular access for the elderly presented in this review considers the individual end-stage kidney disease Life-Plan, the patient life expectancy, the likelihood of access function and survival, the timing of dialysis relative to access placement, prior access history, and patient preference. This complex decision-making process should be dynamic in order to accommodate patients' changing needs and life and health circumstances. Effective and timely communication between the patient, their caregivers, and treating team is key to delivering truly patient-centered care. Delivering this care also requires overcoming the limitations of the currently available evidence that is predominantly based on observational data with its inherent risks of bias. While challenging, future randomized controlled studies exploring the risks, benefits, costs, and timing of placement of available access types in the elderly are required to help us "get it right" for our patients.
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Affiliation(s)
- Andrea K Viecelli
- Department of Nephrology, Princess Alexandra Hospital, Brisbane, Australia; Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Charmaine E Lok
- Division of Nephrology, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
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20
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Murea M, Geary RL, Edwards MS, Moossavi S, Davis RP, Goldman MP, Hurie J, Williams TK, Velazquez-Ramirez G, Robinson TW, Bagwell B, Tuttle AB, Callahan KE, Rocco MV, Houston DK, Pajewski NM, Divers J, Freedman BI, Williamson JD. A randomized pilot study comparing graft-first to fistula-first strategies in older patients with incident end-stage kidney disease: Clinical rationale and study design. Contemp Clin Trials Commun 2019; 14:100357. [PMID: 31016270 PMCID: PMC6475715 DOI: 10.1016/j.conctc.2019.100357] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 03/27/2019] [Accepted: 04/05/2019] [Indexed: 11/22/2022] Open
Abstract
Timely placement of an arteriovenous (AV) vascular access (native AV fistula [AVF] or prosthetic AV graft [AVG]) is necessary to limit the use of tunneled central venous catheters (TCVC) in patients with end-stage kidney disease (ESKD) treated with hemodialysis (HD). National guidelines recommend placement of AVF as the AV access of first choice in all patients to improve patient survival. The benefits of AVF over AVG are less certain in the older adults, as age-related biological changes independently modulate patient outcomes. This manuscript describes the rationale, study design and protocol for a randomized controlled pilot study of the feasibility and effects of AVG-first access placement in older adults with no prior AV access surgery. Fifty patients age ≥65 years, with incident ESKD on HD via TCVC or advanced kidney disease facing imminent HD initiation, and suitable upper extremity vasculature for initial placement of an AVF or AVG, will be randomly assigned to receive either an upper extremity AVG-first (intervention) or AVF-first (comparator) access. The study will establish feasibility of randomizing older adults to the two types of AV access surgery, evaluate relationships between measurements of preoperative physical function and vascular access development, compare vascular access outcomes between groups, and gather longitudinal assessments of upper extremity muscle strength, gait speed, performance of activities of daily living, and patient satisfaction with their vascular access and quality of life. Results will assist with the planning of a larger, multicenter trial assessing patient-centered outcomes.
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Affiliation(s)
- Mariana Murea
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Randolph L. Geary
- Department of Vascular and Endovascular Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Matthew S. Edwards
- Department of Vascular and Endovascular Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Shahriar Moossavi
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Ross P. Davis
- Department of Vascular and Endovascular Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Matthew P. Goldman
- Department of Vascular and Endovascular Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Justin Hurie
- Department of Vascular and Endovascular Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Timothy K. Williams
- Department of Vascular and Endovascular Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | | | - Todd W. Robinson
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Benjamin Bagwell
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Audrey B. Tuttle
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Kathryn E. Callahan
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Michael V. Rocco
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Denise K. Houston
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Nicholas M. Pajewski
- Department of Biostatistics and Data Science, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Jasmin Divers
- Department of Biostatistics and Data Science, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Barry I. Freedman
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Jeff D. Williamson
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
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Phang CC, Tan RY, Pang SC, Tan CW, Teh SP, Cheng R, Kho YX, Chong TT, Gogna A, Foo WY, Tan CS. Paclitaxel‐coated balloon in the treatment of recurrent dysfunctional arteriovenous access, real‐world experience and longitudinal follow up. Nephrology (Carlton) 2019; 24:1290-1295. [DOI: 10.1111/nep.13591] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/11/2019] [Indexed: 01/10/2023]
Affiliation(s)
- Chee Chin Phang
- Department of Renal MedicineSingapore General Hospital Singapore Singapore
| | - Ru Yu Tan
- Department of Renal MedicineSingapore General Hospital Singapore Singapore
| | - Suh Chien Pang
- Department of Renal MedicineSingapore General Hospital Singapore Singapore
| | - Chee Wooi Tan
- Department of Renal MedicineSingapore General Hospital Singapore Singapore
| | - Swee Ping Teh
- Department of Renal MedicineSingapore General Hospital Singapore Singapore
| | | | - Yu Xuan Kho
- NUS Yong Loo Lin School of Medicine Singapore Singapore
| | - Tze Tec Chong
- Department of Vascular SurgerySingapore General Hospital Singapore Singapore
| | - Apoorva Gogna
- Department of Vascular and Interventional RadiologySingapore General Hospital Singapore Singapore
| | - Wai Yin Foo
- Department of Renal MedicineSingapore General Hospital Singapore Singapore
| | - Chieh Suai Tan
- Department of Renal MedicineSingapore General Hospital Singapore Singapore
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22
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Itoga NK, Virgin-Downy W, Mell MW. Forearm loop arteriovenous grafts preserve and may create new upper arm access sites. J Vasc Access 2019; 20:691-696. [PMID: 31006339 DOI: 10.1177/1129729819835137] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION This study evaluated the mid-term patency of forearm loop arteriovenous grafts and the dilation of previously inadequate upper arm basilic and cephalic veins after failed forearm loop arteriovenous graft. METHODS All access procedures from September 2009 to December 2015 were reviewed. Vein mapping measurements were used to determine whether there was "adequate" upper arm cephalic and/or basilic vein, defined as ⩾3 mm by duplex ultrasound, at the time of forearm loop arteriovenous graft creation. Outcomes of forearm loop arteriovenous graft were compared with upper arm arteriovenous fistula, and primary and cumulative patencies were evaluated. RESULTS Thirty-eight forearm loop arteriovenous grafts and 278 upper arm arteriovenous fistulas were created. In the forearm loop arteriovenous graft cohort, nine were inserted with adequate upper arm vein, group A, and 29 were inserted with inadequate upper arm vein, group B. Cumulative patency was lower for forearm loop arteriovenous graft compared with upper arm arteriovenous fistula at 6 months, 1 year, and 2 years (67% vs 91%, 61% vs 85%, and 49% vs 80%, respectively, P < .01). Comparison of group A forearm loop arteriovenous graft and upper arm arteriovenous fistula did not show a statistical difference in cumulative patency at 6 months, 1 year, and 2 years (P = .80, .62, and .70, respectively). Of group B with failed forearm loop arteriovenous graft, 36% became candidates for upper arm arteriovenous fistula with dilation of ipsilateral upper arm cephalic or basilic vein to ⩾3 mm. CONCLUSION In this study, forearm loop arteriovenous graft with adequate upper arm vein did not show a statistical difference in mid-term patencies compared with upper arm arteriovenous fistula. For those forearm loop arteriovenous grafts with inadequate upper arm vein, approximately one-third of patients became candidates for upper arm arteriovenous fistula demonstrating the benefits forearm loop arteriovenous graft.
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Affiliation(s)
- Nathan K Itoga
- Division of Vascular Surgery, School of Medicine, Stanford University, Stanford, CA, USA
| | - Whitt Virgin-Downy
- Division of Vascular Surgery, School of Medicine, Stanford University, Stanford, CA, USA
| | - Matthew W Mell
- Division of Vascular Surgery, School of Medicine, Stanford University, Stanford, CA, USA
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23
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Allon M. Vascular Access for Hemodialysis Patients: New Data Should Guide Decision Making. Clin J Am Soc Nephrol 2019; 14:954-961. [PMID: 30975657 PMCID: PMC6556719 DOI: 10.2215/cjn.00490119] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
This commentary critically examines key assumptions and recommendations in the 2006 Kidney Disease Outcomes Quality Initiative vascular access guidelines, and argues that several are not relevant to the contemporary United States hemodialysis population. First, the guidelines prefer arteriovenous fistulas (AVFs) over arteriovenous grafts (AVGs), on the basis of their superior secondary survival and lower frequency of interventions and infections. However, intent-to-treat analyses that incorporate the higher primary failure of AVFs, demonstrate equivalent secondary survival of both access types. Moreover, the lower rate of AVF versus AVG infections is counterbalanced by the higher rate of catheter-related bloodstream infections before AVF maturation. In addition, AVFs with assisted maturation (interventions before successful AVF use), which account for about 50% of new AVFs, are associated with inferior secondary patency compared with AVGs without intervention before successful use. Second, the guidelines posit lower access management costs for AVFs than AVGs. However, in patients who undergo AVF or AVG placement after starting dialysis with a central venous catheter (CVC), the overall cost of access management is actually higher in patients receiving an AVF. Third, the guidelines prefer forearm over upper arm AVFs. However, published data demonstrate superior maturation of upper arm versus forearm AVFs, likely explaining the progressive increase in upper arm AVFs in the United States. Fourth, AVFs are thought to fail primarily because of aggressive juxta-anastomotic stenosis. However, recent evidence suggests that many AVFs mature despite neointimal hyperplasia, and that suboptimal arterial vasodilation may be an equally important contributor to AVF nonmaturation. Finally, CVC use is believed to result in excess mortality in patients on hemodialysis. However, recent data suggest that CVC use is simply a surrogate marker of sicker patients who are more likely to die, rather than being a mediator of mortality.
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Affiliation(s)
- Michael Allon
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama
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Fumagalli G, Trovato F, Migliori M, Panichi V, De Pietro S. The forearm arteriovenous graft between the brachial artery and the brachial vein as a reliable dialysis vascular access for patients with inadequate superficial veins. J Vasc Surg 2019; 70:199-207.e4. [PMID: 30894304 DOI: 10.1016/j.jvs.2018.10.101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 10/26/2018] [Indexed: 11/15/2022]
Abstract
OBJECTIVE The arteriovenous fistula (AVF) is recommended as the preferred hemodialysis access. However, placing an AVF in all patients may result in poor access outcomes and increased central venous catheter (CVC) use because of increased comorbid conditions, age, and suboptimal vessels. In patients with inadequate superficial veins for AVFs, the use of the brachial veins for creation of forearm arteriovenous grafts (AVGs) has received limited attention. This retrospective study aimed to evaluate outcomes of forearm brachial-brachial AVGs (BB-AVGs) placed in patients with poor superficial veins. METHODS We identified 111 BB-AVGs created in 111 consecutive patients, using standard-walled polytetrafluoroethylene grafts, between January 2010 and December 2015. After excluding 6 patients (non-dialysis initiation, missing information, and death within 1 month), we included 105 patients from 21 dialysis centers. We analyzed primary failures, time to cannulation, patency, complications, and revisions. Patency rates were calculated by the Kaplan-Meier method. The incidence of complications and revisions was expressed as number of events per person-year. RESULTS A total of 105 patients (median age, 69 years) were followed up for a median time of 21.2 months (interquartile range, 9.2-36.5 months). Of the patients, 72.4% were on chronic hemodialysis and had previously undergone one or more access procedures. At the time of BB-AVG placement, prior accesses were 39 AVFs, 20 tunneled CVCs, and 17 AVGs. BB-AVG rates of primary failure and revision before cannulation were 7.6% and 5.7%, respectively. BB-AVGs were cannulated after a median time of 3.4 weeks (interquartile range, 2.8-4.1 weeks). Primary patency rates at 12, 24, and 36 months were 49.5%, 29.5%, and 19.5%. Secondary patency rates at 12, 24, and 36 months were 76.3%, 62.7%, and 54.6%. After cannulation, the incidence of complications and revisions was 1.054 and 0.649 per person-year, respectively. Most complications and interventions were due to thrombosis (0.527 per person-year) or stenosis (0.381 per person-year) and related interventions (0.490 per person-year). A minority of patients experienced AVG infections (0.052 per person-year), with only two requiring access removal. CONCLUSIONS In patients with poor superficial veins, the forearm BB-AVG is a reliable access because of low access-related morbidity and considerable long-term access survival. BB-AVG placement has the advantage of preserving proximal vessels. In these patients, such an approach can delay both rapid exhaustion of vascular sites and early recourse to CVC permanent use.
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Affiliation(s)
- Giordano Fumagalli
- Nephrology and Dialysis Unit, USL Toscana Nord Ovest-Versilia Hospital, Lido di Camaiore, Lucca, Italy.
| | - Fabio Trovato
- Nephrology and Dialysis Unit, USL Toscana Nord Ovest-Versilia Hospital, Lido di Camaiore, Lucca, Italy; Department of Mathematics and Computer Science, Freie Universität Berlin, Berlin, Germany
| | - Massimiliano Migliori
- Nephrology and Dialysis Unit, USL Toscana Nord Ovest-Versilia Hospital, Lido di Camaiore, Lucca, Italy
| | - Vincenzo Panichi
- Nephrology and Dialysis Unit, USL Toscana Nord Ovest-Versilia Hospital, Lido di Camaiore, Lucca, Italy
| | - Stefano De Pietro
- Nephrology and Dialysis Unit, USL Toscana Nord Ovest-Versilia Hospital, Lido di Camaiore, Lucca, Italy
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Al-Balas A, Lee T, Young CJ, Allon M. Choice of a second vascular access in hemodialysis patients whose initial arteriovenous fistula failed to mature. J Vasc Surg 2018; 68:1858-1864.e1. [DOI: 10.1016/j.jvs.2018.03.419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 03/22/2018] [Indexed: 11/30/2022]
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Aristokleous N, Houston JG, Browne LD, Broderick SP, Kokkalis E, Gandy SJ, Walsh MT. Morphological and hemodynamical alterations in brachial artery and cephalic vein. An image-based study for preoperative assessment for vascular access creation. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING 2018; 34:e3136. [PMID: 30070048 DOI: 10.1002/cnm.3136] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 06/04/2018] [Accepted: 07/15/2018] [Indexed: 06/08/2023]
Abstract
The current study aims to computationally evaluate the effect of right upper arm position on the geometric and hemodynamic characteristics of the brachial artery (BA) and cephalic vein (CV) and, furthermore, to present in detail the methodology to characterise morphological and hemodynamical healthy vessels. Ten healthy volunteers were analysed in two configurations, the supine (S) and the prone (P) position. Lumen 3D surface models were constructed from images acquired from a non-contrast MRI sequence. Then, the models were used to numerically compute the physiological range of geometric (n = 10) and hemodynamic (n = 3) parameters in the BA and CV. Geometric parameters such as curvature and tortuosity, and hemodynamic parameters based on wall shear stress (WSS) metrics were calculated with the use of computational fluid dynamics. Our results highlight that changes in arm position had a greater impact on WSS metrics of the BA by altering the mean and maximum blood flow rate of the vessel. Whereas, curvature and tortuosity were found not to be significantly different between positions. Inter-variability was associated with antegrade and retrograde flow in BA, and antegrade flow in CV. Shear stress was low and oscillatory shear forces were negligible. This data suggests that deviations from this state may contribute to the risk of accelerated intimal hyperplasia of the vein in arteriovenous fistulas. Therefore, preoperative conditions coupled with post-operative longitudinal data will aid the identification of such relationships.
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Affiliation(s)
- Nicolas Aristokleous
- Bio-Science and Bio-Engineering Research (BioSciBER), School of Engineering, Bernal Institute and the Health Research Institute, University of Limerick, Castletroy, Limerick, Ireland
| | - J Graeme Houston
- Department of Cardiovascular and Diabetes Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
- NHS Tayside Clinical Radiology, Ninewells Hospital, Dundee, UK
| | - Leonard D Browne
- Bio-Science and Bio-Engineering Research (BioSciBER), School of Engineering, Bernal Institute and the Health Research Institute, University of Limerick, Castletroy, Limerick, Ireland
| | - Stephen P Broderick
- Bio-Science and Bio-Engineering Research (BioSciBER), School of Engineering, Bernal Institute and the Health Research Institute, University of Limerick, Castletroy, Limerick, Ireland
| | - Efstratios Kokkalis
- Department of Cardiovascular and Diabetes Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | | | - Michael T Walsh
- Bio-Science and Bio-Engineering Research (BioSciBER), School of Engineering, Bernal Institute and the Health Research Institute, University of Limerick, Castletroy, Limerick, Ireland
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Lomonte C, Basile C, Mitra S, Combe C, Covic A, Davenport A, Kirmizis D, Schneditz D, van der Sande F. Should a fistula first policy be revisited in elderly haemodialysis patients? Nephrol Dial Transplant 2018; 34:1636-1643. [DOI: 10.1093/ndt/gfy319] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 09/05/2018] [Indexed: 11/14/2022] Open
Abstract
Abstract
Life-sustaining haemodialysis requires a durable vascular access (VA) to the circulatory system. The ideal permanent VA must provide longevity for use with minimal complication rate and supply sufficient blood flow to deliver the prescribed dialysis dosage. Arteriovenous fistulas (AVFs) have been endorsed by many professional societies as the VA of choice. However, the high prevalence of comorbidities, particularly diabetes mellitus, peripheral vascular disease and arterial hypertension in elderly people, usually make VA creation more difficult in the elderly. Many of these patients may have an insufficient vasculature for AVF maturation. Furthermore, many AVFs created prior to the initiation of haemodialysis may never be used due to the competing risk of death before dialysis is required. As such, an arteriovenous graft and, in some cases, a central venous catheter, become a valid alternative form of VA. Consequently, there are multiple decision points that require careful reflection before an AVF is placed in the elderly. The traditional metrics of access patency, failure and infection are now being seen in a broader context that includes procedure burden, quality of life, patient preferences, morbidity, mortality and cost. This article of the European Dialysis (EUDIAL) Working Group of ERA-EDTA critically reviews the current evidence on VA in elderly haemodialysis patients and concludes that a pragmatic patient-centred approach is mandatory, thus considering the possibility that the AVF first approach should not be an absolute.
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Affiliation(s)
- Carlo Lomonte
- Division of Nephrology, Miulli General Hospital, Acquaviva delle Fonti, Italy
| | - Carlo Basile
- Division of Nephrology, Miulli General Hospital, Acquaviva delle Fonti, Italy
- Associazione Nefrologica Gabriella Sebastio, Martina Franca, Italy
| | - Sandip Mitra
- Manchester Academy of Health Sciences Centre (MAHSC) & NIHR Devices for Dignity MedTech Co-operative, Manchester, UK
| | - Christian Combe
- Service de Néphrologie Transplantation Dialyse Aphérèse, Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France
- Unité INSERM 1026, Université de Bordeaux, Bordeaux, France
| | - Adrian Covic
- Nephrology Clinic, Dialysis and Renal Transplant Center, C.I. PARHON University Hospital, Iasi, Romania
- Grigori T. Popa University of Medicine, Iasi, Romania
| | - Andrew Davenport
- UCL Centre for Nephrology, Royal Free Hospital, Division of Medicine, University College, London, UK
| | | | | | - Frank van der Sande
- Department of Internal Medicine, Division of Nephrology, University Hospital Maastricht, Maastricht, The Netherlands
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Shakarchi JA, Inston N. Early cannulation grafts for haemodialysis: An updated systematic review. J Vasc Access 2018; 20:123-127. [DOI: 10.1177/1129729818776571] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Purpose: Early cannulation grafts are specifically designed for dialysis, whereas standard expanded polytetrafluoroethylene grafts were not. There is developing collective experience and literature available to allow the assessment of outcomes of these early cannulation grafts. The aim of this review was to review the evidence for both short- and long-term outcomes of early cannulation grafts. Methods: Using standardized searches of electronic databases in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses, the primary outcomes for this study were primary and secondary patency rates for early cannulation grafts for dialysis at 12 months and beyond. Secondary outcomes were timing of first cannulation, rates of access thrombosis, steal syndrome, pseudo-aneurysm and infection. Results: A total of 19 studies were identified and included. These were divided into different graft types. Flixene™, Avflo™, Acuseal™ and Vectra™ grafts all showed that early cannulation within 72 h is possible. Twelve-month pooled primary and secondary patency rates were 43.3% (95% confidence interval: 31.6–55.4) and 73.4% (95% confidence interval: 63–82.7) for the Flixene graft, 58.2% (95% confidence interval: 48–68.1) and 79.2% (95% confidence interval: 68–88.7) for the Avflo graft, 43.6% (95% confidence interval: 30.7–56.9) and 70.5% (95% confidence interval: 49.7–87.8) for the Acuseal graft and 63.7% (95% confidence interval: 53.4–73.4) and 85.8% (95% confidence interval: 82.9–88.4) for the Vectra graft. Data for outcome beyond 12 months were limited to the more recent studies. Conclusion: This review confirms that early cannulation is not detrimental on the early outcome of early cannulation graft patencies. It has also shown that both Vectra and Avflo grafts have adequate long-term patencies. The data do not allow specific graft recommendations, as comparative trials would be required.
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Affiliation(s)
- Julien Al Shakarchi
- Department of Vascular Surgery, Black Country Vascular Network, Russells Hall Hospital, Dudley, UK
| | - Nicholas Inston
- Department of Renal Surgery, University Hospitals Birmingham, Birmingham, UK
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Solesky BC, Huber TS, Berceli SA. Patient-Centric Analysis of Dialysis Access Outcomes. J Vasc Access 2018; 11:31-7. [DOI: 10.1177/112972981001100107] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objective Dialysis access literature has traditionally focused on fistula patency as the primary outcome measure, but this approach falls short in describing the entire spectrum of dialysis access care. Using our prospectively maintained vascular access data base, a comprehensive, patient-centered analysis of arteriovenous access placement and interventions, central venous catheter use, and associated complications is performed. Methods Twenty-six patients receiving 39 arteriovenous fistula (AVF), eight prosthetic grafts and 52 catheters were followed longitudinally for an average of 4.1 yrs to determine the time of initial cannulation, need for revision, and the time of abandonment for each AV access. Access complications secondary to infection, thrombosis, stenosis, and aneurysmal degeneration were tabulated. The time of permanent dialysis catheter placement and removal was collected, along with infection and thrombotic complications related to their use. Results Fifty-four percent of the AVFs matured without the need for intervention, while 13% required revision to promote maturation. One-third of the AVFs failed primarily or following revision and were never used for dialysis. Fistulae were initially cannulated an average of 9.5 months following implantation and lasted 27.2 months before abandonment. AVF revisions were performed an average of 7.5 months following maturation and provided an additional 19.8 months of usability. Fifty percent of prosthetic grafts could be used without intervention, while 25% were used only after revision and 25% were abandoned without being used. Grafts were accessed an average of 2.7 months after implantation and lasted 14.1 months after the initial cannulation. Twenty-three patients received a total of 52 catheters during the study, with an average implantation time of 6.5 months. Sixty-three percent of the catheters developed one or more complications, for a rate of 1.3 complications per year of indwelling catheter. Conclusion The current study provides a novel approach for the comprehensive evaluation of access care for patients undergoing hemodialysis through the development of a patient-centric approach to examine the complexities and shortcomings in dialysis access care. Despite some difficulties in achieving fistula maturation, an AVF prevalence rate was 66%, meeting the 65% goal set by the Fistula First Initiative. Unfortunately, a significant portion of the remainder of the dialysis support was provided by catheters, with a 27% catheter prevalence rate.
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Affiliation(s)
| | - Thomas S. Huber
- Department of Surgery, University of Florida, Gainesville, FL - USA
| | - Scott A. Berceli
- Malcolm Randall Veterans Affairs Medical Center, Gainesville, FL - USA
- Department of Surgery, University of Florida, Gainesville, FL - USA
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Abstract
The majority of patients in the United States begin hemodialysis with a catheter. Many have immature or inadequate fistulae. At 90 days 77% of these patients are still using a catheter or a graft. The morbidity and mortality from prolonged catheter use have been well delineated. Although most of us adhere to the DOQI and Fistula First tenets, a fistula at all costs can seem counterproductive. A new paradigm is needed. The techniques described in this paper offer a novel approach to circumvent the problems of increasing catheter use and long fistula maturation times. The graft for immediate use is placed in the forearm and allows the proximal vessels to mature while providing dialysis access without a catheter. When these vessels meet maturation guidelines, or when surveillance indicates impending graft failure, a native fistula can be constructed and used in a 2–3 week period. This approach minimizes or circumvents catheter use altogether.
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Affiliation(s)
- Earl Schuman
- Legacy Good Samaritan Hospital, Portland, OR - USA
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Misskey J, Faulds J, Sidhu R, Baxter K, Gagnon J, Hsiang Y. An age-based comparison of fistula location, patency, and maturation for elderly renal failure patients. J Vasc Surg 2017; 67:1491-1500. [PMID: 29224945 DOI: 10.1016/j.jvs.2017.08.080] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 08/14/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Current Kidney Disease Outcomes Quality Initiative guidelines do not incorporate age in determining autogenous arteriovenous hemodialysis access placement, and the optimal initial configuration in elderly patients remains controversial. We compared patency, maturation, survival, and complications between several age cohorts (<65 years, 65-79 years, >80 years) to determine whether protocols should be modified to account for advanced age. METHODS All patients at two teaching hospitals undergoing a first autogenous arteriovenous access creation in either arm between 2007 and 2013 were retrospectively analyzed from a prospectively maintained database. Kaplan-Meier survival and Cox hazards models were used to compare access patency and risk factors for failure. RESULTS There were 941 autogenous arteriovenous accesses (median follow-up, 23 months; range, 0-89 months) eligible for inclusion; 152 (15.3%) accesses were created in those >80 years, 397 (42.2%) in those 65 to 79 years, and 392 (41.8%) in those <65 years. Primary patencies in patients >80 years, 65 to 79 years, and <65 years were 40% ± 4%, 38% ± 3%, and 51% ± 3% at 12 months and 12% ± 5%, 13% ± 3%, and 27% ± 3% at 36 months (P < .001). Primary assisted patencies were 72% ± 4%, 70% ± 2%, and 78% ± 2% at 12 months and 52% ± 5%, 52% ± 3%, and 67% ± 3% at 36 months (P < .001). Secondary patencies were 72% ± 4%, 71% ± 2%, and 79% ± 2% at 12 months and 54% ± 5%, 55% ± 3%, and 72% ± 3% at 36 months (P < .001). Radiocephalic patencies were lowest among older cohorts; in those >80 years, 65 to 79 years, and <65 years, they were 65% ± 7%, 67% ± 4%, and 77% ± 3% at 12 months and 41% ± 8%, 51% ± 5%, and 68% ± 4% at 36 months (P = .019). Secondary brachiocephalic access patencies in these cohorts were 78% ± 5%, 80% ± 3%, and 82% ± 3% at 12 months and 68% ± 7%, 66% ± 5%, and 77% ± 4% at 36 months (P = .206). Both the age groups 65 to 79 years and >80 years demonstrated superior brachiocephalic vs radiocephalic secondary patencies (P = .048 and P = .015, respectively); however, no differences between configuration and secondary patency were observed within the cohort <65 years. Radiocephalic access maturation failure at 12 and 24 months was 25% ± 3% and 29% ± 4% in those <65 years, 32% ± 3% and 39% ± 4% in those 65 to 79 years, and 40% ± 7% and 48% ± 8% in those >80 years (P = .006). Brachiocephalic access maturation failures were 17% ± 3% and 20% ± 3% at 12 and 24 months in those <65 years, 21% ± 3% and 25% ± 4% in those 65 to 79 years, and 18% ± 5% and 21% ± 5% in those >80 years (P = .740). On multivariate analysis, coronary disease, female sex, previous ipsilateral or bilateral catheters, radiocephalic configuration, and age >65 years were associated with secondary patency loss. CONCLUSIONS Patients aged 65 to 79 years and >80 years had inferior primary, primary assisted, and secondary patency and maturation compared with those <65 years. When stratified by configuration, radiocephalic accesses demonstrated lower patency and maturation compared with brachiocephalic accesses for patients aged 65 to 79 years and >80 years and were an independent predictor of secondary patency loss.
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Affiliation(s)
- Jonathan Misskey
- Division of Vascular Surgery, University of British Columbia, Vancouver, British Columbia, Canada.
| | - Jason Faulds
- Division of Vascular Surgery, University of British Columbia, Vancouver, British Columbia, Canada; Division of Vascular Surgery, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Ravi Sidhu
- Division of Vascular Surgery, University of British Columbia, Vancouver, British Columbia, Canada; Division of Vascular Surgery, Saint Paul's Hospital, Vancouver, British Columbia, Canada
| | - Keith Baxter
- Division of Vascular Surgery, University of British Columbia, Vancouver, British Columbia, Canada; Division of Vascular Surgery, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Joel Gagnon
- Division of Vascular Surgery, University of British Columbia, Vancouver, British Columbia, Canada; Division of Vascular Surgery, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - York Hsiang
- Division of Vascular Surgery, University of British Columbia, Vancouver, British Columbia, Canada; Division of Vascular Surgery, Vancouver General Hospital, Vancouver, British Columbia, Canada
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Kakisis JD, Antonopoulos C, Mantas G, Alexiou E, Katseni K, Sfyroeras G, Moulakakis K, Geroulakos G. Safety and efficacy of polyurethane vascular grafts for early hemodialysis access. J Vasc Surg 2017; 66:1792-1797. [DOI: 10.1016/j.jvs.2017.06.083] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 06/01/2017] [Indexed: 10/18/2022]
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Arnaoutakis DJ, Deroo EP, McGlynn P, Coll MD, Belkin M, Hentschel DM, Ozaki CK. Improved outcomes with proximal radial-cephalic arteriovenous fistulas compared with brachial-cephalic arteriovenous fistulas. J Vasc Surg 2017; 66:1497-1503. [DOI: 10.1016/j.jvs.2017.04.075] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 04/23/2017] [Indexed: 11/16/2022]
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Momeni A, Mardani S, Kabiri M, Amiri M. Comparison of Complications of Arteriovenous Fistula with Permanent Catheter in Hemodialysis Patients: A Six-month Follow-up. Adv Biomed Res 2017; 6:106. [PMID: 28904934 PMCID: PMC5590397 DOI: 10.4103/2277-9175.213666] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
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. Before and after the dialysis session, blood samples were taken for laboratory examinations and measurement of urea reduction ratio (URR) and Kt/V. The patients were followed up for six months, and then laboratory examinations were repeated. Results: Of the 76 hemodialysis patients, 30 had AVF and others PC. During the 6-month follow-up, 24 patients in PC group but only one patient in AVF group showed infection (P = 0.006), while in each group, three cases of thrombosis were seen (P = 0.58); however, catheter dysfunction was seen in 13 patients of PC group but no patients of AVF group (P = 0.004). There was no difference between the two groups in Kt/V and URR at the beginning of the study; however, after six months, Kt/V and URR were greater in AVF group (P < 0.05). Conclusions: In addition to some advantages of AVF over PC, such as lower rate of infection and thrombosis, we also found better dialysis adequacy in AVF group. We recommend that AVF be created in all of patients with chronic kidney disease who are candidates for hemodialysis.
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Affiliation(s)
- Ali Momeni
- Division of Nephrology, Department of Internal Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Saeed Mardani
- Division of Nephrology, Department of Internal Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Maryam Kabiri
- Department of Internal Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Masoud Amiri
- Department of Epidemiology and Biostatistics, Social Health Determinants Research Center, School of Health, Shahrekord University of Medical Sciences, Shahrekord, Iran
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INFLUENCE OF LONG-TERM CYTOTOXIC CHEMOTHERAPY ON THE CONDITION OF PERIPHERAL VENOUS CHANNEL. EUREKA: HEALTH SCIENCES 2017. [DOI: 10.21303/2504-5679.2017.00331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The necessity of long-term venous access in cancer patients appears at frequent and long-term courses of cytotoxic therapy. Peripheral veins of forearms are most often used for these aims. The conditions of peripheral venous channel in 32 cancer patients, who underwent the long-term treatment with antitumor preparations were analyzed in the article on own investigatory material.
The methods of dopplerography, morphological and immunohystochemical studies were used.
The qualitative and quantitative dopplerographic changes in forearm veins in different terms after chemotherapy start were revealed in most patients.
The conclusion was made about unsuitability of forearm peripheral veins for the long term administration of cytostatics and the necessity to create the alternative vascular access that would correspond to the criteria of safety, reliability and long-term exploitation.
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Beathard GA, Urbanes A, Litchfield T. Changes in the Profile of Endovascular Procedures Performed in Freestanding Dialysis Access Centers over 15 Years. Clin J Am Soc Nephrol 2017; 12:779-786. [PMID: 28420654 PMCID: PMC5477215 DOI: 10.2215/cjn.09730916] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 02/10/2017] [Indexed: 01/20/2023]
Abstract
BACKGROUND AND OBJECTIVES Marked changes occurred in the vascular access profile of patients receiving hemodialysis in the United States over the 15-year period of 2001-2015. This study was undertaken to evaluate how these changes have affected dialysis access maintenance and salvage procedures performed in freestanding dialysis access centers and to examine the effectiveness, efficiency, and safety of these procedures in this setting. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Data were collected from freestanding, dedicated dialysis access centers operating under a common system of management. Data were available on 689,676 dialysis access procedures. Data relating to case mix, procedure outcome, procedural time, and intraprocedural and immediate postprocedural complications were analyzed. RESULTS The arteriovenous procedure profile changed from one characterized by approximately equal numbers of angioplasties and thrombectomies performed on arteriovenous grafts (AVGs) to one characterized primarily by angioplasties performed on arteriovenous fistulas. The percentage of angioplasties performed throughout the study was significantly greater than thrombectomies, with a mean of 67.9% versus 32.1% (P<0.001). Interventional procedures did not decrease with increasing arteriovenous fistula utilization in prevalent patients receiving dialysis. The incidence roughly paralleled the increasing prevalence of this type of access. A decreasing percentage of AVG utilization resulted in a progressive, roughly parallel, but disproportionately higher, decrease in the percentage of AVG procedures (P<0.001). A progressive improvement in procedure outcomes and a decrease in complication rates and procedure times were observed (P<0.001 for each). A progressive decrease in tunneled dialysis catheter placement was also observed. CONCLUSIONS The procedure profile treated in freestanding, dedicated dialysis access centers changed significantly over 15 years, reflecting the changes that have occurred in the vascular access profile of the dialysis population.
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Affiliation(s)
- Gerald A. Beathard
- Lifeline Vascular Access a division of DaVita Healthcare, Denver, Colorado; and
- Department of Medicine, University of Texas Medical Branch, Galveston, Texas
| | - Aris Urbanes
- Lifeline Vascular Access a division of DaVita Healthcare, Denver, Colorado; and
| | - Terry Litchfield
- Lifeline Vascular Access a division of DaVita Healthcare, Denver, Colorado; and
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Abstract
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. Over the past 20 years, as clinicians have adopted these guidelines, the prevalence of AVF use in hemodialysis patients has increased substantially. At the same time, clinicians have recognized important limitations of an unwavering "Fistula First" approach. First, a substantial proportion of AVFs fail to mature even when routine preoperative vascular mapping is used, leading to prolonged catheter dependence. Second, certain patient subgroups are at high risk for AVF nonmaturation. Third, nonmaturing AVFs frequently require interventions to promote their maturation. Fourth, AVFs that require such interventions have shortened cumulative patency. Fifth, arteriovenous grafts (AVG) have several advantages over AVFs, including lower primary failure rates, fewer interventions prior to successful cannulation, and shorter duration of catheter dependence with its associated risk of bacteremia. All these observations have led nephrologists to propose an individualized approach to vascular access, with AVG being preferred in patients who initiate hemodialysis with a catheter, particularly if they are at high risk for AVF nonmaturation and have a relatively short life expectancy.
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Affiliation(s)
- Michael Allon
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama
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Sequeira A, Naljayan M, Vachharajani TJ. Vascular Access Guidelines: Summary, Rationale, and Controversies. Tech Vasc Interv Radiol 2017; 20:2-8. [DOI: 10.1053/j.tvir.2016.11.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Mehrotra R, Cheung AK, Meyer T, Nath KA. Vascular Access for Hemodialysis and Value-Based Purchasing for ESRD. J Am Soc Nephrol 2016; 28:395-397. [PMID: 28143965 DOI: 10.1681/asn.2016070769] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Rajnish Mehrotra
- Kidney Research Institute and Harborview Medical Center, Division of Nephrology, Department of Medicine, University of Washington, Seattle, Washington;
| | - Alfred K Cheung
- Division of Nephrology and Hypertension, Department of Internal Medicine, University of Utah, Salt Lake City, Utah.,Division of Nephrology and Hypertension, Department of Medicine, Veterans Affairs, Salt Lake City Healthcare System, Salt Lake City, Utah
| | - Timothy Meyer
- Division of Nephrology, Department of Medicine, Stanford University, Palo Alto, California; and
| | - Karl A Nath
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota
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Obesity Increases the Risk of Primary Nonfunction and Early Access Loss, and Decreases Overall Patency in Patients Who Underwent Hemodialysis Reliable Outflow Device Placement. Ann Vasc Surg 2016; 36:236-243. [DOI: 10.1016/j.avsg.2016.03.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 03/09/2016] [Accepted: 03/11/2016] [Indexed: 11/20/2022]
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MacRae JM, Dipchand C, Oliver M, Moist L, Lok C, Clark E, Hiremath S, Kappel J, Kiaii M, Luscombe R, Miller LM. Arteriovenous Access Failure, Stenosis, and Thrombosis. Can J Kidney Health Dis 2016; 3:2054358116669126. [PMID: 28270918 PMCID: PMC5332078 DOI: 10.1177/2054358116669126] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 08/04/2016] [Indexed: 01/29/2023] Open
Abstract
Vascular access–related complications can lead to patient morbidity and reduced patient quality of life. Some of the common arteriovenous access complications include failure to mature, stenosis formation, and thrombosis.
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Affiliation(s)
- Jennifer M MacRae
- Cumming School of Medicine and Department of Cardiac Sciences, University of Calgary, Alberta, Canada
| | | | - Matthew Oliver
- Sunnybrook Health Sciences Centre, University of Toronto, Ontario, Canada
| | - Louise Moist
- Department of Medicine, University of Western Ontario, London, Canada
| | - Charmaine Lok
- Faculty of Medicine, University Health Network, University of Toronto, Ontario, Canada
| | - Edward Clark
- Faculty of Medicine, University of Ottawa, Ontario, Canada
| | | | - Joanne Kappel
- Faculty of Medicine, University of Saskatchewan, Saskatoon, Canada
| | - Mercedeh Kiaii
- Faculty of Medicine, The University of British Columbia, Vancouver, Canada
| | - Rick Luscombe
- Department of Nursing, Providence Health Care, Vancouver, British Columbia, Canada
| | - Lisa M Miller
- Max Rady College of Medicine, University of Manitoba, Winnipeg, Canada
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MacRae JM, Oliver M, Clark E, Dipchand C, Hiremath S, Kappel J, Kiaii M, Lok C, Luscombe R, Miller LM, Moist L. Arteriovenous Vascular Access Selection and Evaluation. Can J Kidney Health Dis 2016; 3:2054358116669125. [PMID: 28270917 PMCID: PMC5332074 DOI: 10.1177/2054358116669125] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 08/04/2016] [Indexed: 12/11/2022] Open
Abstract
When making decisions regarding vascular access creation, the clinician and vascular access team must evaluate each patient individually with consideration of life expectancy, timelines for dialysis start, risks and benefits of access creation, referral wait times, as well as the risk for access complications. The role of the multidisciplinary team in facilitating access choice is reviewed, as well as the clinical evaluation of the patient.
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Affiliation(s)
- Jennifer M MacRae
- Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Alberta, Canada
| | - Matthew Oliver
- Sunnybrook Health Sciences Centre, University of Toronto, Ontario, Canada
| | - Edward Clark
- Faculty of Medicine, University of Ottawa, Ontario, Canada
| | | | | | - Joanne Kappel
- Faculty of Medicine, University of Saskatchewan, Saskatoon, Canada
| | - Mercedeh Kiaii
- Faculty of Medicine, University of British Columbia, Vancouver, Canada
| | - Charmaine Lok
- Faculty of Medicine, University Health Network, University of Toronto, Ontario, Canada
| | - Rick Luscombe
- Department of Nursing, Providence Health Care, Vancouver, British Columbia, Canada
| | - Lisa M Miller
- Max Rady College of Medicine, University of Manitoba, Winnipeg, Canada
| | - Louise Moist
- Department of Medicine, University of Western Ontario, London, Canada
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Georgiadis GS, Antoniou GA, Kantartzi K, Georgakarakos EI, Argyriou C, Passadakis P, Lazarides MK. Comparison of standard forearm prosthetic loop grafts to composite semiloop forearm grafts ("semi-grafts") in hemodialysis patients: A prospective study. Hemodial Int 2016; 21:274-283. [PMID: 27581703 DOI: 10.1111/hdi.12482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
INTRODUCTION To prospectively assess the performance of composite semiloop antebrachial grafts ("semi-grafts," SGs) in hemodialysis patients. METHODS Eighty-five patients who received 67 loop antebrachial grafts (LG-group) and 25 antebrachial semigrafts (SG-group) were enrolled. SGs were defined as those originating from the brachial artery and anastomosed with the proximal mature mid-antebrachial cephalic vein. Cephalic vein length should be at least 10 cm in length and of ≥5 mm in diameter for inclusion in the SG-group. LG-group included all possible outflow vein options of minimum diameter 3 mm. Kaplan-Meier statistics was used for comparison of groups. FINDINGS Main indication for a SG was a failing radiocephalic fistula with extensive distal cephalic vein stenosis not amenable to correction or failed after endovascular repair or requiring long interposition grafting. The mean follow-up period was 20.16 ± 22.6 and 29.6 ± 36.7 months for the LG- and SG-group, respectively (P = 0.14). Forty-two patients died during the follow-up. Primary patency (up to first intervention or failure) at 6 and 12 months for LG- vs. SG-group was 93.9% vs. 83.7% and 47% vs. 55.8% (P = 0.08). Secondary patency (up to abandonment) was 58.2% vs. 61.1% and 36% vs. 45.8% at 12 and 24 months (P = 0.18). Mortality at 48 months was 22.4% (LG-group) and 24% (SG-group) (P = 0.9). DISCUSSION There was a trend toward better primary and secondary patency rates for the SGs especially in the long-term. This is a valuable option in selected patients that access surgeons and nephrologists should be aware of.
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Affiliation(s)
- George S Georgiadis
- Department of Vascular Surgery, "Democritus" University of Thrace, University General Hospital of Evros, Alexandroupolis, Greece
| | - George A Antoniou
- Department of Vascular and Endovascular Surgery, The Royal Oldham Hospital, Pennine Acute Hospitals NHS Trust, Manchester, UK
| | - Konstantia Kantartzi
- Department of Nephrology, "Democritus" University of Thrace, University General Hospital of Evros, Alexandroupolis, Greece
| | - Efstratios I Georgakarakos
- Department of Vascular Surgery, "Democritus" University of Thrace, University General Hospital of Evros, Alexandroupolis, Greece
| | - Christos Argyriou
- Department of Vascular Surgery, "Democritus" University of Thrace, University General Hospital of Evros, Alexandroupolis, Greece
| | - Ploumis Passadakis
- Department of Nephrology, "Democritus" University of Thrace, University General Hospital of Evros, Alexandroupolis, Greece
| | - Miltos K Lazarides
- Department of Vascular Surgery, "Democritus" University of Thrace, University General Hospital of Evros, Alexandroupolis, Greece
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Vazquez-Padron RI, Allon M. New Insights into Dialysis Vascular Access: Impact of Preexisting Arterial and Venous Pathology on AVF and AVG Outcomes. Clin J Am Soc Nephrol 2016; 11:1495-1503. [PMID: 27401525 PMCID: PMC4974874 DOI: 10.2215/cjn.01860216] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Despite significant improvements in preoperative patient evaluation and surgical planning, vascular access failure in patients on hemodialysis remains a frequent and often unforeseeable complication. Our inability to prevent this complication is, in part, because of an incomplete understanding of how preexisting venous and arterial conditions influence the function of newly created arteriovenous fistulas and grafts. This article reviews the relationship between three preexisting vascular pathologies associated with CKD (intimal hyperplasia, vascular calcification, and medial fibrosis) and hemodialysis access outcomes. The published literature indicates that the pathogenesis of vascular access failure is multifactorial and not determined by any of these pathologies individually. Keeping this observation in mind should help focus our research on the true causes responsible for vascular access failure and the much needed therapies to prevent it.
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Affiliation(s)
- Roberto I. Vazquez-Padron
- DeWitt Daughtry Family Department of Surgery, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida; and
| | - Michael Allon
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama
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Ha TY, Kim YH, Chang JW, Park Y, Han Y, Kwon H, Kwon TW, Han DJ, Cho YP, Lee SG. Clinical Outcomes of Cryopreserved Arterial Allograft Used as a Vascular Conduit for Hemodialysis. J Korean Med Sci 2016; 31:1266-72. [PMID: 27478338 PMCID: PMC4951557 DOI: 10.3346/jkms.2016.31.8.1266] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 04/12/2016] [Indexed: 12/02/2022] Open
Abstract
This single center cohort study aimed to test the hypothesis that use of a cryopreserved arterial allograft could avoid the maturation or healing process of a new vascular access and to evaluate the patency of this technique compared with that of vascular access using a prosthetic graft. Between April 2012 and March 2013, 20 patients underwent an upper arm vascular access using a cryopreserved arterial allograft for failed or failing vascular accesses and 53 using a prosthetic graft were included in this study. The mean duration of catheter dependence, calculated as the time interval from upper arm access placement to removal of the tunneled central catheter after successful cannulation of the access, was significantly longer for accesses using a prosthetic graft than a cryopreserved arterial allograft (34.4 ± 11.39 days vs. 4.9 ± 8.5 days, P < 0.001). In the allograft group, use of vascular access started within 7 days in 16 patients (80%), as soon as from the day of surgery in 10 patients. Primary (unassisted; P = 0.314) and cumulative (assisted; P = 0.673) access survivals were similar in the two groups. There were no postoperative complications related to the use of a cryopreserved iliac arterial allograft except for one patient who experienced wound hematoma. In conclusion, upper arm vascular access using a cryopreserved arterial allograft may permit immediate hemodialysis without the maturation or healing process, resulting in access survival comparable to that of an access using a prosthetic graft.
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Affiliation(s)
- Tae-Yong Ha
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Young Hoon Kim
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Jai Won Chang
- Department of Internal Medicine University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Yangsoon Park
- Department of Pathology, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Youngjin Han
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Hyunwook Kwon
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Tae-Won Kwon
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Duck Jong Han
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Yong-Pil Cho
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Sung-Gyu Lee
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
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Lomonte C, Forneris G, Gallieni M, Tazza L, Meola M, Lodi M, Senatore M, Morale W, Spina M, Napoli M, Bonucchi D, Galli F. The vascular access in the elderly: a position statement of the Vascular Access Working Group of the Italian Society of Nephrology. J Nephrol 2016; 29:175-184. [PMID: 26780568 PMCID: PMC5429362 DOI: 10.1007/s40620-016-0263-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Accepted: 01/04/2016] [Indexed: 12/28/2022]
Abstract
The incident hemodialysis (HD) population is aging, and the elderly group is the one with the most rapid increase. In this context it is important to define the factors associated with outcomes in elderly patients. The high prevalence of comorbidities, particularly diabetes mellitus, peripheral vascular disease and congestive heart failure, usually make vascular access (VA) creation more difficult. Furthermore, many of these patients may have an insufficient vasculature for fistula maturation. Finally, many fistulas may never be used due to the competing risk of death before dialysis initiation. In these cases, an arteriovenous graft and in some cases a central venous catheter become a valid alternative form of VA. Nephrologists need to know what is the most appropriate VA option in these patients. Age should not be a limiting factor when determining candidacy for arteriovenous fistula creation. The aim of this position statement, prepared by experts of the Vascular Access Working Group of the Italian Society of Nephrology, is to critically review the current evidence on VA in elderly HD patients. To this end, relevant clinical studies and recent guidelines on VA are reviewed and commented. The main advantages and potential drawbacks of the different VA modalities in the elderly patients are discussed.
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Affiliation(s)
- Carlo Lomonte
- U.O.C. di Nefrologia e Dialisi, Ente Ecclesiastico Ospedale "F.Miulli", 70021, Acquaviva delle Fonti, Italy.
| | - Giacomo Forneris
- Struttura Complessa a Direzione Universitaria di Nefrologia e Dialisi, Ospedale Giovanni Bosco, Turin, Italy
| | | | - Luigi Tazza
- Dipartimento di Scienze Chirurgiche, Policlinico Gemelli, Università Cattolica Sacro Cuore, Rome, Italy
| | - Mario Meola
- Dipartimento di Medicina, Università di Pisa, Pisa, Italy
- Scuola Superiore Sant'Anna, Pisa, Italy
| | - Massimo Lodi
- Unità di Nefrologia e Dialisi, Ospedale Santo Spirito, Pescara, Italy
| | - Massimo Senatore
- U.O.C. di Nefrologia e Dialisi, Ospedale Annunziata, Cosenza, Italy
| | - Walter Morale
- Unità di Nefrologia e Dialisi, A.O. Cannizzaro, Catania, Italy
| | - Monica Spina
- Unità di Nefrologia e Dialisi, Ospedale San Gavino Monreale, Cagliari, Italy
| | - Marcello Napoli
- U.O.C. di Nefrologia e Dialisi, Ospedale Santa Caterina Novella, Galatina, Italy
| | | | - Franco Galli
- Unità di Nefrologia IRCCS, Fondazione Salvatore Maugeri, Pavia, Italy
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Murea M, Satko S. Looking Beyond "Fistula First" in the Elderly on Hemodialysis. Semin Dial 2016; 29:396-402. [PMID: 26931575 DOI: 10.1111/sdi.12481] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Vascular access preparation, a pervasive challenge in hemodialysis (HD), is emerging as a multidimensional subject in geriatric nephrology. Previously published guidelines declared arteriovenous fistulas (AVF) as the preferred vascular access for all patients on HD. In this article, the benefit-risk evidence for using AVF versus an alternative access (arteriovenous graft [AVG] or tunneled central venous catheter [TCVC]) in the elderly is pondered. Compared to their younger counterparts, the elderly have significantly lower survival rates independent of the vascular access used for HD. Recent studies point to comparable dialysis survival rates between AVF and AVG or TCVC in subgroups of elderly patients, as well as lower rates of access-related infections, and lower catheter dependence after AVG compared to AVF construction in these patients. Comprehensive and longitudinal assessments that integrate comorbidities, physical function, cognitive status, and quality of life to estimate prognosis and assist with vascular access selection ought to be employed. In circumstances where patient survival is limited by comorbidities and functional status, AVF is unlikely to confer meaningful benefits compared to AVG or even TCVC in the ill elderly.
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Affiliation(s)
- Mariana Murea
- Department of Internal Medicine-Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, North Carolina.
| | - Scott Satko
- Department of Internal Medicine-Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, North Carolina.,Interventional Nephrology, Wake Forest School of Medicine, Winston-Salem, North Carolina
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48
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Hemodialysis arteriovenous fistula as first option not necessary in elderly patients. J Vasc Surg 2016; 63:1326-32. [PMID: 26776449 DOI: 10.1016/j.jvs.2015.11.036] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Accepted: 11/05/2015] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Kidney Disease Outcomes Quality Initiative guidelines recommend arteriovenous fistulas as the preferred access for hemodialysis patients. However, this may not hold across all populations of patients, especially the elderly, given their comorbidities and relatively reduced life expectancy. Therefore, we investigated whether fistulas held benefit over arteriovenous grafts as hemodialysis access in elderly patients. METHODS We retrospectively searched a vascular access database to compare the outcomes for 138 fistulas and 44 grafts that were placed in elderly patients (≥75 years old) during a 4-year period at a tertiary medical center. RESULTS The primary failure rate was higher for the fistulas compared with the grafts (odds ratio, 2.89; P = .008), and more fistulas required one or more interventions before their successful use compared with grafts (31% vs 10%, respectively; P = .03). In addition, the time to catheter-free dialysis was longer for fistulas than for grafts (P < .001). However, the primary and secondary patency rates were comparable between the fistulas and grafts and between the different access locations. The all-cause mortality rates were also comparable between the fistula and graft groups. CONCLUSIONS Despite the Fistula First Initiative recommendations, grafts need not be discounted as a first-line hemodialysis access option in select elderly patients.
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49
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Early Cannulation Grafts for Haemodialysis: A Systematic Review. J Vasc Access 2015; 16:493-7. [DOI: 10.5301/jva.5000412] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/21/2015] [Indexed: 11/20/2022] Open
Abstract
Purpose Arteriovenous grafts have advantages compared with central venous catheters for dialysis access and guidelines suggest their use as second choice after arteriovenous fistulas. Standard practice with expanded polytetrafluoroethylene (ePTFE) grafts has been to avoid cannulation for 2 weeks following placement, but new generation grafts have been marketed for their early cannulation properties allowing use as an alternative to central venous catheters for prompt access. The aim of this review is to search the current literature for evidence of early cannulation of new generation grafts and to assess their patency and complication rates. Methods Electronic databases were searched for studies assessing the use of early cannulation grafts for dialysis in accordance with PRISMA. The primary outcomes for this study were primary patency rate, primary-assisted patency rate and secondary patency rate. Secondary outcomes were timing of first cannulation, rates of access thrombosis, steal syndrome, pseudo-aneurysm and infection. Results Following strict inclusion/exclusion criteria by two reviewers, 15 studies were included in our review and divided into the different types of graft. Flixene, Avflo, Rapidax and Acuseal grafts showed that early cannulation within 72 h was possible; there was no evidence of the use of Vectra within 2 weeks of placement. All grafts showed similar patency and complication rates as previously published data on standard ePTFE grafts. Conclusion Our review showed that early cannulation is possible without detriment, but data did not allow specific graft recommendations. Therefore, we feel that a multicentre, randomised controlled trial is necessary to compare early cannulation grafts.
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50
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Kim JJ, de Virgilio C. Reply: To PMID 25935277. J Vasc Surg 2015; 62:1682-3. [PMID: 26598126 DOI: 10.1016/j.jvs.2015.06.221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 06/30/2015] [Indexed: 10/22/2022]
Affiliation(s)
- Jerry J Kim
- Department of Surgery, Harbor-UCLA Medical Center, Torrance, Calif
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