Journal of the Korean Pediatric Society 1994;37(5):612-619.
Published online May 15, 1994.
Morphological Classification of Left Superior Vena Cava and Analysis of Associated Cardiac Anomalies
Eun Joo Choi1, Jong Kyun Lee2, Seok Min Choi2, Jun Hee Sul2, Sung Kyu Lee2
1Department of Pediatrics, School of Medicine, Kunkook University, Seoul, Korea
2Division of Pediatric Cardiology, cardiovascular Center, Yonsei University, Seoul, Korea
좌상공정맥의 형태학적 분류 및 동반 심기형의 특징
최은주1, 이종균2, 최석민2, 설준희2, 이승규2
1건국대학교 의과대학 소아과학교실
2연세대학교 의과대학 심장혈관센터 소아심장과
The persistend left superior vena cava(LSVC) is not rare cardiovascular developmental anomaly occurring both in association with congenital heart disdease and as an isolated anomaly of no hemodynamic importance. We have studied 73 cases of the LSCV out of 1,060 cases of congenital heart disease catheterized at Yonsei Cardiovascular Center. We conducted the study with a view point of position of the heart and abdominal organs and segmental analysis of the underlying congenital heart disease. We also analysed the associated extracardiac vascular anomalies. The following results were obtained: 1) The incidence of this anomaly among congenital heart disease was 6.9% and 41 cases (56.2%) had cyanosis., 2) We observed 20 cases (27.3%) with the malposition of the heart and 17 cases(23.3%) with malposition of the abdominal organs. The ventricular loops vrevealed D-loop in 60 cases, L-loop in 7 cases and in the remaining 6 cases, it was uncertain. 3) With a view point of type of LSVC by Lucas & Krabill, type A was in 50 cases (68.5%), type D in 14 cases (19.2%), type B in 5 cases (6.8%) and type C in 4 cases (5.5%). 4) Associated cardiovascular anomalies were as follows:ventricular septal defect; 42 cases(57.5%), atrial septal defect; 33 cases (45.2%), patent ductus arteriosus; 27 cases (36.9%), and tetralogy of Fallot; 18 cases (24.7%). In conclusion, LSVC usually has no hemodynamic importance, but this cardiac anomaly is frequently combined with complex intracardiac anomalies. Therefore, it is important to making accurate diagnosis and successful management for preventing the risk of it.
Key Words: Left Superior vena Cava, Cardiac anomalies

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