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1 Department of Pediatrics and Surgery of the Pritzker School of Medicine, The University of Chicago, Chicago
A 20-yesr-old man with congenital absence of the pulmonary valve, secundum atrial septal defect and partial atrioventricular block is described. This combination of lesions has not been reported previously. Hemodynamic studies revealed left-to-right atrial shunt and low pulmonary artery pressures presumably caused by increased compliance of the aneurysmal pulmonary trunk. Corrective surgery, consisting of closure of two atrial septal defects and aortic valve homograft replacement, was successfully done.
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