Agarwal Ashish, K S Ravindranath, Agrawal Navin, Patra Soumya, Agarwal Neena, Manjunath C N
Department of Cardiology, Sri Jayadeva Institute of Cardiovascular Sciences and Research, Bangalore, India.
Echocardiography. 2014 Mar;31(3):E77-9. doi: 10.1111/echo.12466. Epub 2013 Dec 23.
Persistent left superior vena cava (LSVC) is a rare congenital anomaly which usually produces no physiologic derangements if it drains into the right atrium via the coronary sinus, but it may cause significant desaturation when it drains into the left atrium (LA). Failure to diagnose LSVC communicating with the LA preoperatively may lead to serious consequences. We are describing an interesting case of a boy who presented with systemic desaturation due to an undetected LSVC after having undergone corrective surgery for atrioventricular canal defect. We have demonstrated that echocardiography with agitated saline contrast is a simple, accurate, and inexpensive diagnostic modality.
永存左上腔静脉（LSVC）是一种罕见的先天性异常，如果它通过冠状窦引流至右心房，通常不会产生生理紊乱，但当它引流至左心房（LA）时，可能会导致明显的血氧饱和度降低。术前未能诊断出与左心房相通的永存左上腔静脉可能会导致严重后果。我们正在描述一个有趣的病例，一名男孩在接受房室通道缺损矫正手术后，因未被发现的永存左上腔静脉而出现全身血氧饱和度降低。我们已经证明，使用 agitated saline contrast 的超声心动图是一种简单、准确且廉价的诊断方法。
