Vascular access in the Obese: Superficialisation of Native Radio-Cephalic and Brachio-Cephalic Fistulae
- 16 October 2014
- journal article
- Published by SAGE Publications in The Journal of Vascular Access
- Vol. 16 (2), 126-129
- https://doi.org/10.5301/jva.5000307
Abstract
Purpose: The Department of Health estimates that currently in the UK, 61.3% of the population are overweight or obese (BMI >25 kg/m2). Fistulae in the obese often fail to mature or prove inadequate to needle due to excessive depth (>6 mm). This study is a summary of our experience with brachio and radio-cephalic vein superficialisation in the obese. Methods: From May 2008 to October 2012, 22 patients underwent superficialisation of the cephalic vein following radio-cephalic or brachio-cephalic Arterio-venous fistula (AVF) creation. Data were obtained from a prospective database (Cyberen®) and retrospectively analysed. Results: The study included 23 AVFs in 22 patients (seven males, 15 females), of which 13 were brachio-cephalic and 10 radio-cephalic. The mean age of the patients was 56 years (median 60, range 19-78 years). The mean BMI was 36.7 kg/m2 (median 32, 25-58 kg/m2). Six-week post procedure duplex ultrasonography recorded the mean fistula depth to be 7.7 mm (median 8 mm, 5-15 mm) and mean flow rates were 961 ml/min (median 800 ml/min, 320-1968 ml/min). Of the 23, 21 fistulae matured successfully. There were no procedure-related complications. During follow-up, two patients underwent transplantation prior to fistula use and three patients died of unrelated causes. The remaining 16 fistulae remain in use and under access surveillance. Conclusions: Superficialisation of brachio/radio-cephalic fistulae is an excellent option to optimise the cephalic vein for needling, assisting primary patency. Superficialisation of the cephalic vein helps maintain long-term functional access in overweight and obese patients.Keywords
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