Nonsurgical management of obstructive aortic thrombosis complicated by renovascular hypertension in the neonate.

The use of umbilical artery catheters has become commonplace in the intensive care nursery and has facilitated management in the very ill newborn infant. Thrombotic complications associated with the use of such catheters may be as high as 30%. The successful, nonsurgical management of either complete or partial aortic thrombosis, associated with renovascular hypertension, is reported in three infants. Aggressive supportive medical management resulted in a satisfactory outcome in all three infants.