We report a case of stab wound to the heart resulting in an atrial sep
tal defect and perforation of the anterior leaflet of the mitral valve
, which we repaired successfully 7 years after the injury. To our know
ledge, repair of an atrial septal defect due to penetrating trauma has
never before been reported. Investigation of possible valvular heart
disease in a patient with a history of chest trauma should be aimed at
identifying both intracardiac shunts and valvular abnormalities, so t
hat a complete repair can be performed.