Kivrak Ahmet, Doğan Mert, Ates Ahmet Hakan, Canpolat Ugur, Aydin Ahmet, Aytemir Kudret
Cardiology, Faculty of Medicine, Hacettepe University, Ankara, TUR.
Cardiovascular System Surgery, Faculty of Medicine, Hacettepe University, Ankara, TUR.
Cureus. 2024 Sep 19;16(9):e69747. doi: 10.7759/cureus.69747. eCollection 2024 Sep.
Coronary artery anomalies (CAAs) are usually asymptomatic and have a good prognosis. Single coronary artery anomaly (SCA) is a very rare CAA. Its true incidence is unknown. They are usually detected incidentally during coronary imaging and autopsy. Although most are asymptomatic, they can rarely cause clinical conditions such as sudden cardiac death and acute coronary syndrome (ACS). In this case report, a 44-year-old male patient was admitted to the emergency department with chest pain and coronary angiography revealed the absence of the left main coronary artery and a single right coronary artery (RCA). The patient's left system was fed by the posterior left ventricular artery (PLVA) and the conus artery. There was a serious lesion in the proximal PLVA and in the region close to the conus branch of the RCA. The patient underwent coronary artery bypass grafting and was discharged with recovery. In this case, we identified a single RCA in the patient presenting with ACS, and interestingly, the conus branch was supplying the proximal part of the left descending artery branch.
冠状动脉异常（CAAs）通常无症状，预后良好。单冠状动脉异常（SCA）是一种非常罕见的冠状动脉异常。其真实发病率尚不清楚。它们通常在冠状动脉成像和尸检时偶然被发现。虽然大多数无症状，但它们很少能引起诸如心源性猝死和急性冠状动脉综合征（ACS）等临床情况。在本病例报告中，一名44岁男性患者因胸痛入住急诊科，冠状动脉造影显示左主冠状动脉缺如，仅有一条右冠状动脉（RCA）。患者的左心系统由左室后动脉（PLVA）和圆锥动脉供血。PLVA近端及靠近RCA圆锥支区域存在严重病变。该患者接受了冠状动脉搭桥手术，康复出院。在本病例中，我们在一名表现为ACS的患者中发现了单一的RCA，有趣的是，圆锥支为左前降支近端供血。
