We reviewed the results of 300 cadaveric pediatric renal transplantations performed at our institution. The procedures provided significant survival and improvement of the quality of life in the majority of children. Recipient and graft survival was better in patients more than 5 years old than in younger children. Early nontechnical thrombosis was a major specific problem in young recipients. The original disease did affect graft survival. Uncorrected congenital bladder storage and micturition inefficiency adversely affected graft survival.