[Interrupted aortic arch type B survived after single stage repair and continuous hemodiafiltration; report of a case].

A 14-day-old, 2,042 g neonate with interrupted aortic arch (IAA) type B was admitted to our hospital because of respiratory failure. Although alprostadil and alprostadil alfadex were used to keep the ductus arteriosus open, her congestive heart failure became worse and anuria and metabolic acidosis started to appear. We performed single-stage repair for her at 14 days old. Continuous hemodiafiltration (CHDF) was initiated immediately after the operation and peritoneal dialysis was started after paralytic ileus improved. CHDF improved her renal function and she was discharged at postoperative day 84. We conclude that CHDF is effective for neonates with acute renal failure although circulation management is rather difficult.