Acutedissection oftheright ventricular outflow tractafterballoon dilatation inapatient with previously corrected tetralogy ofFallot

Percutaneous balloon dilatationhasbeen used successfully to dilatevarious stenosesoccurring afterrepairofcongenital heartdisease. Acutedissection of a stenotic rightventricular outflow tract occurred afterattempted balloon dilatationin a patient withpreviously corrected tetralogy ofFallot.