Abstract: Presented is a case of left superior vena cava draining into the right atrium through coronary sinus and communicating with right superior vena cava through small left brachiocephalic vein. The right atrium was very large, the right ventricle very small. There was also a defective tricuspid valve.
A double superior vena cava is formed due to the persistence of the left anterior cardinal vein and failure of the left brachiocephalic vein to form. In such conditions the left superior vena cava drains into the right atrium through coronary sinus. Such venous abnormalities of thoracic region are commonly associated with cardiac abnormalities such as atrial or ventricular septal defects, Tetralogy of Fallot. When left superior vena cava is present drains the left cranial and upper limb veins to the right atrium, the left brachiocephalic vein may be undeveloped with the right superior vena cava relatively smaller than normal.
Keywords: Left superior vena cava, left anterior cardinal vein, coronary sinus, brachiocephalic vein.
Title: Persistent Left Superior Vena Cava: A Case Report
Author: Shivarama C, Arunachalam Kumar
International Journal of Life Sciences Research
ISSN 2348-313X (Print), ISSN 2348-3148
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