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Not So Stable Angina: Single Coronary Artery Disease
Sittinun Thangjui1, Harshith Thyagaturu1, Ahmad Morshed2
1Internal Medicine, Bassett Healthcare Network, Cooperstown, USA.
A rare congenital heart anomaly, single coronary artery (SCA), can cause angina. An unroofing procedure successfully treated a high-risk SCA case, resolving symptoms.
Area of Science:
- Cardiology
- Congenital Heart Disease
- Interventional Cardiology
Background:
- A single coronary artery (SCA) is a rare congenital anomaly.
- SCAs are often incidentally discovered during investigations for ischemic heart disease or angina.
- The modified Lipton classification system categorizes SCA variations.
Observation:
- A 49-year-old male presented with stable angina.
- He had a single coronary artery originating from the right coronary sinus with an intraseptal course of the left main coronary artery.
- This specific anatomy was classified as RII-S, a high-risk SCA.
Findings:
- The RII-S single coronary artery classification indicates a high-risk anomaly.
- Surgical intervention is necessary for certain SCA types.
- The patient underwent an unroofing procedure to alleviate compression of the left coronary artery.
Implications:
- The unroofing procedure effectively decompressed the left coronary artery.
- The patient experienced complete resolution of his angina symptoms.
- This case highlights the successful management of a high-risk SCA variant through surgical intervention.
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