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Case Report: Anomalous origin of the left main coronary artery arising from the left ventricular outflow tract

Year: 2025

Type: article

Abstract: An anomalous origin of the left main coronary artery arising from the left ventricular outflow tract is an exceedingly rare congenital coronary anomaly, typically associated with impaired myocardial perfusion. Here, we report the case of a 67-year-old asymptomatic woman in whom an anomalous origin of the left main coronary artery, arising from the left ventricular outflow tract below the aortic valve, was incidentally identified during routine preoperative cardiac evaluation. Despite the anatomical abnormality, the patient exhibited no clinical or imaging evidence of myocardial ischemia. This finding is likely explained by a marked dilation of the right coronary artery and the presence of well-developed collateral circulation supplying the left coronary system. With no evidence of ischemia and maintained ventricular function, a non-interventional approach was deemed appropriate. This case highlights the importance of comprehensive anatomical and functional assessment in detecting clinically silent coronary anomalies and underscores the value of advanced cardiac imaging in the preoperative evaluation of elderly patients undergoing non-cardiac procedures.

Source: Frontiers in Cardiovascular Medicine

DOI: 10.3389/fcvm.2025.1640534

Authors: Huynh Thi Minh Thuy, Tran Minh Bao Luan, Pham Tho Tuan Anh, Nguyen Hoang Dinh

Institutions: University of Medicine and Pharmacy at Ho Chi Minh City, Tam Anh General Hospital, Ho Chi Minh City, University Medical Center HCMC

Language: English

Topic: Coronary Artery Anomalies

Subfield: Pulmonary and Respiratory Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $3,801