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Complete occlusion of all three main coronary arteries, with survival dependent on two septal arteries
S S Ashraf1, N Shoukat, D J Keenan
1Department of Cardiothoracic Surgery, Manchester Royal Infirmary, UK.
Insights
A 68-year-old man experienced severe chest pain after a heart attack. Coronary angiography revealed critical blockages in major heart arteries, leaving his heart muscle reliant on small septal arteries for blood supply.
Area of Science:
- Cardiology
- Interventional Cardiology
- Myocardial Infarction
Background:
- A 68-year-old Asian male presented with symptoms of limiting angina pectoris.
- The patient had a recent history of myocardial infarction (MI).
Observation:
- Coronary angiography was performed to assess coronary artery anatomy and blood flow.
- Significant stenotic lesions were identified in the coronary arteries.
Findings:
- Complete occlusion of the left anterior descending (LAD) artery distal to the first septal perforator.
- Proximal occlusion of the right coronary artery (RCA).
- Proximal occlusion of the left circumflex artery (LCx).
- The entire myocardial blood supply was dependent on two septal arteries originating from the LAD.
Implications:
- This case highlights a rare coronary anatomy with severe multi-vessel disease.
- The patient's myocardial viability is critically dependent on collateral circulation via septal arteries.
- Management strategies must consider the high risk of extensive myocardial ischemia and infarction.
Abstract:
A 68-year-old Asian gentleman presented with limiting angina pectoris following myocardial infarction. Coronary angiography demonstrated complete occlusion of the left anterior descending artery after the first septal, the proximal right coronary artery and also the proximal part of the circumflex. The myocardial blood supply was wholly dependent on two septal arteries.