Intrarenal arteriovenous fistula following renal allograft biopsy.

Arteriovenous fistulae in renal allograft are rarely mentioned in papers dealing with vascular complications after renal transplantations. 2 cases of such central fistulae are reported. In our patients the fistulae remained asymptomatic and were incidentally detected, so that neither surgical nor medical measures had to be taken. Reviewing the rather scarce literature on this subject the etiology, symptomatology, prevention and therapy of these fistulae are discussed.