UNIVENTRICULAR HEART WITH ATRIAL SEPTAL-D EFECT IN A CALF

A 4-week-old calf was presented for weakness, dyspnea and a heart murm ur. The physical findings suggested a congenital heart disease. Radiog raphy showed cardiac enlargement. Cardiac catheterisation revealed a l eft to right shunt. Echocardiography visualised an atrial septal defec t, an enlarged right atrium with a reduced left atrium and thickened a trioventricular valves opening in a single ventricle. Further abnormal ities, such as a malposition of the great arteries and an anomalous pu lmonary venous connection, were observed at necropsy.