Sudden Death of a 17‐Month‐Old Chimpanzee ( Pan troglodytes ) due to a Congenital Undiagnosed Ventricular Septal Defect

Ventricular septal defect (VSD) is a congenital defect that is frequently observed in humans. We report the sudden death of an infant chimpanzee due to a congenital undiagnosed VSD. During necropsy, the examination of the heart revealed a VSD, dilatation of the left ventricle and myocardial hypertrophy of the right ventricle.