Hypoplastic left ventricular syndrome in a foal.
A necropsy diagnosis of hypoplastic left ventricular syndrome was made in a day-old foal. The cardiac abnormalities included mitral and aortic valve atresia, patent ductus arteriosus, and a secundum atrial septal defect. The left ventricle was hypoplastic and nonfunctional. The brief survival of the foal was a consequence of left-to-right shunting through the atrial septal defect and right-to-left shunting through the patent ductus. The information is presented to demonstrate the existence of the syndrome as a congenital defect in the horse and to clarify the necropsy findings for the practitioner to diagnose if seen.
D000818:Animals; D006330:Heart Defects, Congenital / Q000473:pathology / Q000662:veterinary*; D006352:Heart Ventricles / Q000002:abnormalities; D006734:Horse Diseases / Q000151:congenital / Q000473:pathology*; D006736:Horses; D008297:Male