The longest documented left main coronary artery
International Journal of Cardiology
|April 17, 2007
Insights
The longest left main coronary artery (LMCA) measured 38 mm in a 60-year-old woman experiencing subacute anterior myocardial infarction. This exceptionally long LMCA was confirmed via coronary angiography and CT.
Area of Science:
- Cardiovascular medicine
- Interventional cardiology
- Radiology
Background:
- The left main coronary artery (LMCA) is a critical vessel supplying oxygenated blood to the left side of the heart.
- Normal LMCA dimensions typically range from 3-6 mm in diameter and 10-15 mm in length.
- Anatomical variations in coronary arteries can influence cardiovascular health and diagnostic interpretations.
Observation:
- A case report details an unusually elongated LMCA measuring 38 mm in a 60-year-old female patient.
- The patient presented with symptoms indicative of subacute anterior myocardial infarction.
- Diagnostic imaging, including coronary angiography and coronary computerized tomography, was utilized to assess the coronary anatomy.
Findings:
- The study identified and documented the longest LMCA on record at 38 mm.
- This anatomical finding was correlated with a diagnosis of subacute anterior myocardial infarction.
- The measurements were consistently validated across two distinct imaging modalities.
Implications:
- This case highlights the importance of recognizing extreme anatomical variations in the LMCA.
- Understanding such variations is crucial for accurate diagnosis and risk stratification in patients with coronary artery disease.
- Further research may explore the clinical significance and potential complications associated with exceptionally long LMCAs.
Abstract:
The left main coronary angiography (LMCA) ranges from 3 to 6 mm in diameter and may be up to 10 to 15 mm in length in humans. We here report a case of the longest LMCA (38 mm) in a 60-year-old woman with subacute anterior myocardial infarction. In coronary angiography and coronary computerized tomography LMCA was measured to be 38 mm long.
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