Department of Radiology, Tianjin Medical University General Hospital, Tianjin, China.
Can J Cardiol. 2013 Dec;29(12):1742.e21-3. doi: 10.1016/j.cjca.2013.04.012. Epub 2013 Jul 3.
Dual left anterior descending (LAD) artery is a rare anomaly conventionally classified into 4 types. We present a case of dual LAD artery in which the long LAD artery has arisen from the left circumflex (LCx) artery, a condition not previously included in the 4 defined types. Moreover, the long LAD artery specified here is associated with an intramyocardial coronary aneurysm. To our best knowledge, it is the first time such a coronary artery anomaly has been reported. This case suggests the important role of coronary computed tomography angiography (CTTA) for diagnosis and therapeutic planning for such an anomaly.
双重左前降支（LAD）动脉是一种罕见的异常，通常分为 4 种类型。我们报告了一例双重 LAD 动脉，其中长 LAD 动脉起源于左回旋支（LCx）动脉，这种情况以前并未包括在 4 种已定义的类型中。此外，这里所指的长 LAD 动脉与心肌内冠状动脉瘤有关。据我们所知，这是首例此类冠状动脉异常的报道。该病例提示冠状动脉计算机断层血管造影（CTTA）在诊断和治疗此类异常中的重要作用。
