Yuji Matsuoka

Disappearance of a cardiac rhabdomyoma complicating congenital mitral regurgitation as observed by serial two-dimensional echocardiography

SummaryA cardiac tumor was diagnosed by two-dimensional (2D) echocardiography in a four-month-old infant who also had congenital mitral regurgitation. At 18 months of age, histological examination of a biopsy specimen of the cardiac tumor, obtained during surgery for mitral valve replacement, revealed a rhabdomyoma. In serial postoperative 2D echocardiograms, this tumor decreased in size until total disappearance after 6 months.

Transient Myocardial Thickening in Acute Myocarditis—Serial Study by Two‐Dimensional Echocardiography

A 13‐year‐old girl developed viral myocarditis complicated by pulmonary thromboembolism. Marked dilatation and reduction in the contractility of the left ventricle were noted in a two‐dimensional echocardiogram on admiwion. The thicknesses of the left ventricle and the interventricular septum were both 8 mm at this time, but increased after the 9th day of the illness to reach 2 cm by the 15th day, with a concomitant reduction in the left ventricular cavity. The myocardial thickening gradually decreased and the ejection fraction improved on serial echocardiographic evaluations, and the wall thickness and ejection fraction returned to normal by the 32nd day. The myocarditis resolved without sequelae. The implications of this transient myocardial thickening are discussed. (Acta Paediatr Jpn 1989; 31: 216 ‐ 221)

Ventricular Inversion Without Transposition of the Great Arteries: A Rare Anomaly Associated with Left-Sided (Tricuspid) Atrioventricular Valve Atresia and Unroofed Coronary Sinus

SummaryIsolated ventricular inversion with concomitant atresia of the left-sided (tricuspid) atrioventricular valve has previously been reported in the English literature in only two patients, and they died during early infancy. We describe the clinical, two-dimensional echocardiographic and angiocardiographic features in a 10-year-old boy with these rare cardiac anomalies in association with unroofed coronary sinus, which compensated for the restrictive atrial septal defect. This is the first published report of this combination of cardiac anomalies.

Truncus solitarius pulmonalis.

SummaryThe case of a female neonate with truncus solitarius pulmonalis (TSP), a rare congenital heart anomaly, is reported. She died four days after birth. A single right ventricle with common atrioventricular (AV) valve was associated with (Collet & Edwards type II) truncus arteriosus communis, and appeared to have a single coronary artery with an abnormally high take-off near the origin of the right subclavian artery. However, the vessel that appeared to be the single coronary artery was in fact an extremely hypoplastic ascending aorta associated with aortic atresia and agenesis of the left ventricle and mitral valve.

Isolated Tricuspid Valve Endocarditis in a Child with a Normal Heart

Infective endocarditis localized in the tricuspid valve was observed in a previously completely healthy 10‐yeardd male. The pathogen was identified as Staphylococcus uureus. Twodimensional and Doppler echocardiography revealed rupture of the chordae tendineae and prolapse of the tricuspid septal leaflet with tricuspid regurgitation. Isolated infective tricuspid valve endocarditis is mostly confined to drug addicts, and, to out knowledge, the literature contains only four cases of this disease in children without heart disease. The present case is considered to represent an extremely rare condition.