Everett Lindsay, Parikh Ishan, Taxak Pritee, Albers Brittany, Joshi Jonathan
School of Medicine, University of Louisville, S Preston St, Louisville, KY 40202, USA.
Department of Internal Medicine, University of Louisville Hospital, 530 S Jackson St, Louisville, KY 40202, USA.
Radiol Case Rep. 2022 Aug 13;17(10):3946-3949. doi: 10.1016/j.radcr.2022.07.094. eCollection 2022 Oct.
L-type transposition of the great vessels is a rare congenital heart disease in which both the great arteries and the ventricular chambers are reversed. Because this condition preserves a physiologic circulatory pathway, it can be challenging to diagnose in infants with no concurrent cardiac abnormalities. Early detection is essential, however, because these patients will eventually experience severe complications, as the structural right ventricle is unable to function long-term in the systemic position. We report a rare case of L-type transposition of the great vessels in a 32-year-old male who presented in adulthood with tachycardia and palpitations. The initial echocardiogram was inconclusive. Further imaging (cardiac MRI & transesophageal echocardiogram) revealed the inverted anatomy due to the presence of key morphological features, such as the malposed great vessels along with the moderator band and prominent trabeculae within the right ventricle, which was functioning systemically.
大动脉L型转位是一种罕见的先天性心脏病，其中两大动脉和心室腔均发生反转。由于这种情况保留了生理性循环通路，因此对于没有并发心脏异常的婴儿来说，诊断可能具有挑战性。然而，早期检测至关重要，因为这些患者最终会出现严重并发症，因为结构上的右心室无法在体循环位置长期发挥功能。我们报告了一例罕见的大动脉L型转位病例，患者为一名32岁男性，成年后出现心动过速和心悸。最初的超声心动图结果不明确。进一步的影像学检查（心脏磁共振成像和经食管超声心动图）显示了由于关键形态学特征的存在而导致的解剖结构倒置，例如大血管位置异常，以及右心室内的节制索和突出的小梁，而右心室正在发挥体循环功能。
