Abstract

In End-stage Renal Disease patients, the distal forearm is the preferred site for hemodialysis access, however forearm vessels have small diameter and according to Guidelines a radial artery internal diameter smaller than 1.6-2 mm is strongly predictive of early failure of the arteriovenous fistula (AVF) because of stenosis and obstruction. It could happen for some patients to not be considered suitable for distal forearm AVF because of poor peripheral vessels, so in these cases the micrusurgical technique can be very helpful in handling such “inadequates” vessels for lower-arm fistula creation. This study is an investigation of long-term patency of distal radio-cephalic AVFs created under microscopic guidance by using small radial arteries (less the 1.6 mm diameter) in adult patients with chronic renal failure and without severe comorbidities. In a sample of 31 patients, at 1 year postoperatively, the mean primary patency rate was 67.7% (21 functioning AVFs out of 31) and that is quite the same result of AVFs’ made with arteries larger than 2 mm.

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