Sezer Salim, Acar Deniz Kanber, Ekiz Ali, Kaya Başak, Bornaun Helen, Aslan Halil
Department of Maternal Fetal Medicine, Kanuni Sultan Süleyman Education and Research Hospital, İstanbul, Turkey.
Department of Pediatric Cardiology, Kanuni Sultan Süleyman Education and Research Hospital, İstanbul, Turkey.
Echocardiography. 2019 May;36(5):1001-1004. doi: 10.1111/echo.14325. Epub 2019 Apr 9.
Left pulmonary artery sling (LPAS) is a very rare cause of large airway compression. In LPAS, the left pulmonary artery (LPA) arises from the proximal right pulmonary artery, coursing over the right mainstem bronchus, posterior to the trachea and anterior to the esophagus prior to reaching the left hilum. The aberrant course of the LPA results in anatomical obstruction of the right mainstem bronchus, the trachea, or both. Only a few reports present the prenatal features of LPAS. In this report, we present the prenatal diagnosis of a case of LPAS in one of a set of identical twins in which the only feature was that of an abnormal course of the LPA on 3-vessel tracheal view. The cross-sectional view at the level of three vessels which includes both pulmonary artery branches is useful to detect this abnormality. Color and power Doppler may be helpful as well.
左肺动脉吊带（LPAS）是大气道受压的一种非常罕见的原因。在左肺动脉吊带中，左肺动脉（LPA）起源于右肺动脉近端，在到达左肺门之前，跨过右主支气管，走行于气管后方和食管前方。左肺动脉的异常走行导致右主支气管、气管或两者的解剖性梗阻。仅有少数报告介绍了左肺动脉吊带的产前特征。在本报告中，我们呈现了一对同卵双胞胎中一例左肺动脉吊带的产前诊断，其唯一特征是在三血管气管视图上左肺动脉走行异常。包括两支肺动脉分支的三血管水平的横截面视图有助于检测这种异常。彩色多普勒和能量多普勒也可能有帮助。
