PERCUTANEOUS BALLOON ANGIOPLASTY FOR EARLY POSTOPERATIVE MODIFIED BLALOCK-TAUSSIG SHUNT FAILURE

Percutaneous balloon angioplasty was successful initial treatment for 2 infants who, early after operation, developed obstruction at the pro ximal anastomotic site of a modified Blalock-Taussig shunt. Two years later the first child had not required reoperation and the dilatation site was patent angiographically. The other baby progressed well after angioplasty but because of surgical concern about the long-term succe ss of angioplasty, shunt surgery was repeated, the baby dying after re operation. Angioplasty of proximal obstruction in these shunts is feas ible and satisfactory long-term palliation can be achieved avoiding re peat shunt surgery before the more definitive Fontan-type procedure.