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, 29 (6), 387-392

Outcomes of Primary Arteriovenous Fistula for Hemodialysis in Elderly Patients (>65 Years) With End Stage Renal Disease: A Study on Indian Population

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Outcomes of Primary Arteriovenous Fistula for Hemodialysis in Elderly Patients (>65 Years) With End Stage Renal Disease: A Study on Indian Population

P Gaur et al. Indian J Nephrol.

Abstract

Introduction: The outcome of arteriovenous fistula (AVF) for hemodialysis (HD) in elderly population remains an issue. The aim of our study was to evaluate the outcomes of arteriovenous fistulas created at our institute in patients older than 65 years.

Methods: All chronic HD patients with age >65 years who had an AVF created between January 1, 2010 and January 1, 2017 were included retrospectively. Baseline demographic information including age, gender, etiology of renal failure and comorbidities were recorded. Access characteristics including access type and anatomic location were recorded. The end point of study was primary and secondary patency. Minimum follow up period of study was 1 year.

Results: A total of 422 AVF were created within the study period. The mean age was 69.3 years. The anatomical site of AVF creation was radiocephalic (RCF) in 74.8% (n = 316), brachiocephalic (BCF) in 18.9% (n = 80) and brachiobasilic (BBF) in 6.1% (n = 26). At one year after creation, cumulative survival of the AVF was 64.7%. At 36 months the primary and secondary patency of RCF, BCF and BBF was 43.6%, 58.6%, 42.6% and 47.3%, 62.5%, 56.9% respectively. The overall median survival did not differ between RCF and BBF fistulas. However, when both were compared with BCF (median survival 1034 days), BBF (median survival 741 days) and RCF (median survival 592 days) had significantly poorer survival (P = 0.004). The most common reason for access failure was thrombosis (28.4%) followed by failure to mature (9%) and aneurysm related complications (9%).

Conclusions: Age should not be a limiting factor when choosing AVF as the preferred HD access. Brachiocephalic AVF has better primary and secondary patency with higher overall median survival. However RCF also provides reasonably good survival rates with acceptable complications in elderly population. Thrombosis and fistulas that fail to mature present as a primary concern to patients in elderly population, and demand further study.

Keywords: Arteriovenous fistula; elderly; hemodialysis; patency.

Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
Primary patency of brachiobasilic fistula, brachiocephalic fistula and radiocephalic fistula
Figure 2
Figure 2
Overall primary and secondary patency of arteriovenous fistula
Figure 3
Figure 3
Secondary patency for brachiobasilic fistula, brachiocephalic fistula and radiocephalic fistula

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