摘要永存左上腔静脉（Persistent left superior vena cava,PLSVC）,是一种常见的体静脉连接异常,可单独存在。若与右侧上腔静脉合并存在时即为双上腔静脉（double superior vena ca-va,DSVC）。双上腔静脉是胚胎时期的左前主静脉未退化而持久存在形成左上腔静脉,发病率约为0.3%~0.5%,先天性心脏病患者的发病率约为11%[1]。
7Hsu JH,Wang CK,Chu KS,et al.Comparison of radiographic landmarks and the echocardiographic SVC/RA junction in the positioning of long-term central venous catheters[J].Acta Anaesthesiol Scand,2006,50(6):731-735.
8Foster ED,Baeza OR,Farina MF,et al.Atrial septal defect asseciated with drainage of left superior vena cava to left atrium and absence of the coronary sinus.J Thorac Cardovasc Surg,1978,76:718-720
