Arterial switch for pulmonary venous obstruction complicating Mustard procedure

Two patients underwent an arterial switch procedure for the relief of severe pulmonary venous obstruction complicating a Mustard procedure. Without preparatory pulmonary banding, both patients had adequate left ventricular function due to secondary pulmonary hypertension. At 8 and 4 years after the procedure, both patients are in New York Heart Association functional class I, with echocardiographic evidence of good left and right ventricular function.