AI Article Synopsis

  • An isolated single coronary artery is a rare congenital heart defect, and the R-I subtype, where a large right coronary artery supplies the left coronary area, is even rarer.
  • A 62-year-old woman experienced decreased exercise tolerance and poor blood pressure control, leading to diagnostic tests that showed a single enlarged right coronary artery and confirmed myocardial ischemia due to the absence of a left coronary artery.
  • Such anomalies can pose serious health risks, emphasizing the importance of managing cardiovascular risk factors for affected individuals.

Article Abstract

Background: Isolated single coronary artery is a rare congenital anomaly. R-I subtype single coronary artery is even rarer. In this subtype, a very large right coronary artery extends in the coronary sulcus to the anterior base of the heart where it produces the left anterior descending coronary artery. Currently, only a few case reports are available in the literature for this anomaly.

Case Summary: Here, we report the case of a 62-year-old woman who presented to the cardiology clinic with decreased exercise tolerance and poor blood pressure control. The patient underwent coronary angiography (CAG) and emission computed tomography (ECT). CAG images revealed a single gigantic right coronary artery (R-I type) arising from the right coronary sinus with branches supplying the left coronary territory. The ECT results confirmed myocardial ischemia at the location of the absent left coronary artery. The ECT findings confirmed that ischemia was consistent with the vascular loss location in CAG images. In such anomalies, there is a compensatory widening of the coronary artery lumen. Medical treatment was administered, and the patient was discharged.

Conclusion: Isolated single coronary arteries are associated with ischemia and potentially fatal acute coronary events. Hence, controlling risk factors is critical.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10758600PMC
http://dx.doi.org/10.4330/wjc.v15.i12.649DOI Listing

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