RT Journal Article SR Electronic T1 Transcatheter closure of Blalock-Taussig shunts with a modified Rashkind umbrella delivery system. JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 56 OP 58 DO 10.1136/hrt.69.1.56 VO 69 IS 1 A1 Houde, C A1 Zahn, E M A1 Benson, L N YR 1993 UL http://heart.bmj.com/content/69/1/56.abstract AB Transcatheter occlusion of Blalock-Taussig shunts was successfully performed in three children with the Rashkind double umbrella occluding device. Complete occlusion was confirmed angiographically in two patients and echocardiographically in the third. The delivery system was adapted for use through smaller sheaths making it more suitable for small children or arterial access.