Brachial artery dilatation after arteriovenous fistulae in XXXX after renal transplantation: a 10-year follow-up with ultrasound scan.

@entity1 @entity2548 @entity292 @entity438
BACKGROUND: Dilatation of the artery proximal to @entity2548 ( @entity2548 ) is not well known but is a potential serious complication in @entity1 for renal transplant. METHODS: From 1991 until 2001, the diameters of the brachial arteries of 29 @entity1 after successful renal transplantation and with existing @entity2548 were prospectively evaluated with ultrasound scan. Nine @entity1 with longstanding @entity2548 without transplantation were included as a control group. RESULTS: In 1991, the mean brachial artery diameter was 6.4 mm (+/-1.8 mm) with patent @entity2548 and 5.2 mm (+/-1.5 mm) with occluded @entity2548 (P= not significant). The 1994 mean diameter was 6.6 mm (+/-1.7 mm) versus 5.3 mm (+/-2.0 mm; P =.029). In 2001, the mean diameter rose to 7.4 mm (+/-1.3 mm) versus 5.7 mm (+/-2.8 mm; P =.022). Compared with the side without @entity292 , the diameter of brachial artery on the @entity2548 side was significantly greater during the whole study period. The increase in the diameter correlates significantly with the time the @entity2548 had been patent (P =.001, according to Spearman test). The dilatation of the brachial arteries of @entity1 without transplantation was smaller compared with @entity1 after transplantation but did not reach statistical significance. Two @entity1 had to undergo operation on a symptomatic @entity438 . CONCLUSION: According to our results, dilatation of the brachial artery after AV is time dependent. Higher flow in the @entity2548 seems to be the main trigger of dilatation.
