Echocardiographic Diagnosis of Atrial Septal Defect in a Newborn Bongo (Boocerus eurycerus) with Hypogammaglobulinemia and Septicemia

A 4-day-old bongo antelope (Boocerus eurycerus) was examined because of depression, inability to rise, hypothermia, dehydration, and swelling of the right side of the pelvis. Failure of passive transfer of immunoglobulins, neonatal septicemia due to Escherichia coli, and coxofemoral luxation were diagnosed. A systolic murmur was detected upon cardiac auscultation. Echocardiography demonstrated an atrial septal defect of the ostium secundum type. Necropsy confirmed the diagnosis of E. coli septicemia and atrial septal defect. Suppurative omphalophlebitis, polyarthritis, and patent urachus were also found at necropsy.