Aortic thrombosis in neonates and infants.

Aortic thrombosis in the neonate occurs most frequently as a complication of umbilical artery catheterization. There is still controversy concerning the appropriate management of this problem. Complications associated with umbilical artery cannulation are numerous and include renal failure, which may necessitate peritoneal dialysis. Because of this possibility, we illustrate and advocate a retroperitoneal approach to the abdominal aorta for thromboembolectomy.