Not So Stable Angina: Single Coronary Artery Disease

Abstract

A single coronary artery (SCA) is a rare congenital anomaly that can be incidentally found as a part of ischemic heart disease or angina workup. A modified Lipton classification is used to categorize the disease. The majority of diseases do not need surgical correction, with the exception of a few conditions. This report presented the case of a 49-year-old man who presented with stable angina with a single coronary artery arising from the right coronary sinus with an intraseptal course of the left main coronary artery. This is categorized as RII-S in the modified Lipton classification and is considered a high-risk anomaly. He underwent an unroofing procedure to decompress the left coronary artery with a resolution of symptoms.

Classification, diagnosis and clinical strategy of congenital coronary artery disease in children

“…Only one coronary artery emanates from the aorta and supplies the whole coronary artery tree, and the incidence rate is <0.07% in the population (34). Different from coronary artery occlusion, the structure of a single coronary artery generally has no obvious abnormality, which can originate from LCS or RCS of aorta.…”