Ventricular septal defect in a blue duiker (Cephalophus monticola)

A 9-mo-old female blue duiker (Cephalophus monticola) weighing 3.9 kg was d iagnosed with a cardiac murmur during quarantine examination. Evaluation of the heart by auscultation. electrocardiography, two-dimensional echocardio graphy. and Doppler color-flow echocardiography revealed a restrictive outl et ventricular septal defect with left atrial and left ventricular dilation . Trivial mitral, tricuspid, and aortic regurgitation was also noted. Thoug h the duiker was clinically asymptomatic at the time of cardiac evaluation, it was found dead I wk later. The cause of death was not determined.