Choi Eun-Young, Hong Soo-Kyung, Jeong Na-Yeong
Department of Pediatrics, Gangnam Medical Center, CHA University, Seoul, Korea.
Division of Fetal Ultrasound, Gangnam Medical Center, CHA University, Seoul, Korea.
Prenat Diagn. 2016 May;36(5):444-8. doi: 10.1002/pd.4801. Epub 2016 Mar 27.
To determine the incidence and clinical characteristics of persistent left superior vena cava (PLSVC) among low-risk pregnancies. We have also compared electrocardiography (ECG) parameters of infants with PLSVC with those of normal controls.
At our institute, fetal echocardiogram is routinely performed in the midtrimester. We retrospectively reviewed the records of prenatally diagnosed PLSVC cases from 2010 to 2014. The ECG findings in infants with isolated PLSVC were compared with those of age-matched controls.
Sixty-five cases of fetal PLSVC were detected during the study period. It represents 0.36% (65/18 188) of all fetal echocardiographic examinations during the study period. Twenty cases (30.8%) had other cardiac anomalies, seven cases (10.8%) were associated with extracardiac anomalies, and four cases (6.2%) had both cardiac and extracardiac anomalies, whereas in 34 cases (52.3%), the anomaly was isolated. There were no significant differences in ECG parameters between neonates with PLSVC and normal controls.
Detection of PLSVC should prompt careful search for associated anomalies. Isolated PLSVC is a benign vascular anomaly and the outcomes are excellent. © 2016 The Authors. Prenatal Diagnosis published by John Wiley & Sons, Ltd.
确定低风险妊娠中永存左上腔静脉（PLSVC）的发生率及临床特征。我们还比较了患有PLSVC的婴儿与正常对照组的心电图（ECG）参数。
在我们研究所，孕中期常规进行胎儿超声心动图检查。我们回顾性分析了2010年至2014年产前诊断为PLSVC病例的记录。将孤立性PLSVC婴儿的心电图结果与年龄匹配的对照组进行比较。
研究期间共检测到65例胎儿PLSVC。占研究期间所有胎儿超声心动图检查的0.36%（65/18188）。20例（30.8%）合并其他心脏畸形，7例（10.8%）合并心外畸形，4例（6.2%）同时合并心脏和心外畸形，而34例（52.3%）为孤立性畸形。患有PLSVC的新生儿与正常对照组的心电图参数无显著差异。
检测到PLSVC应促使仔细寻找相关畸形。孤立性PLSVC是一种良性血管畸形，预后良好。©2016作者。《产前诊断》由John Wiley & Sons, Ltd出版。
