Abstract
The case was introduced by our hospital for the small left ventricle at 36 gestational weeks. We performed fetal echocardiography. Four chamber view showed laterality in atrioventricle and the expansion of the coronary sinus in left atrium. A right ventricle and left ventricle transverse diameter were 18mm and 9mm, respectively. Persistent left superior vena cava (PLSVC) was found, but other cardiac malformations were not found. The right and left pulmonary veins did not connect to left atrium and flowed back near an atrium joint of PLSVC from the left atrium rear and was connected to the enlarged coronary sinus. The present case is the first fetal diagnostically case of total anomalous pulmonary venous connection (TAPVC)(IIa) with PLSVC. The laterality of the significant ventricle is caused by the fact that there became much blood which passes a coronary sinus by having been associated with PLSVC and TAPVC.
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