LEFT-VENTRICULAR THROMBOSIS DURING INFANCY - REPORT OF 2 CASES

Two patients with left ventricular thrombosis diagnosed by echocardiog raphy are presented. The first patient was a 6-week-old girl with supr aventricular tachycardia. Cross-sectional echocardiography showed a ro unded and mobile structure protruding from the left ventricular wall. The girl was in heart failure and had signs of peripheral embolization . After sinus rhythm had been restored the thrombus diminished gradual ly and the girl recovered. The second patient was a newborn boy with s evere aortic stenosis and a large massive thrombus along the left side of the interventricular septum. The boy died after valvotomy, the pos t-mortem examination confirmed the diagnosis of a large thrombus. Left ventricular thrombosis is uncommon in neonates and infants but may ap pear secondary to abnormal hemodynamics.