Selective placement of autogenous arteriovenous fistulae in an over 80-year-old population

Abstract

Introduction:

With improved life expectancy and quality of life, elderly patients constitute a progressively larger fraction of consumers utilising renal replacement therapy (RRT). Although substantial data exist for younger cohorts, minimal evidence exists for outcomes of arteriovenous fistula (AVF) and central catheters (CVC) placed in those patients over 80 years. We examined outcomes of primary AVF placement in this cohort to ascertain durability and benefits of AVF in the over 80-year-old population.

Methods:

Retrospective analysis was undertaken of all autogenous AVFs and CVCs placed in patients aged over 80 years at Gold Coast University Hospital between March 2010 and February 2016. Prospectively collected demographic data, co-morbidities and operative factors were analysed.

Results:

Sixty-five AVF and 12 CVC patients were identified. Mean age at intervention was 83.9 years and 76% of the patients were male. The majority of procedures were autogenous radio-cephalic AVF; median post-operative length of stay was 2 days. Cumulative AVF patient survival at 12 and 24 months was 82% and 72%, respectively. This was significantly better than survival rates of CVC patients, with 12-month survival of 45%. Primary patency at 6, 12 and 24 months was 58%, 39% and 31%. There were 113 follow-up procedures in 41 patients required to maintain patency.

Conclusions:

Although patency rates are inferior and re-intervention rates higher than in younger patients, AVF can be a durable option for RRT in selected elderly patients with improved mortality rates compared with CVC. Age alone should not preclude primary AVF placement.

Keywords

Autogenous Dialysis Elderly Fistula Geriatric

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