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Updated: Jun 4, 2026
06:18
Measurement of Myocardial Lactate Production for Diagnosis of Coronary Microvascular Spasm
Published on: September 17, 2021
Isolated left main coronary artery spasm detected by multidetector computed tomography
Min-Kyung Kang1, Young-Hoon Jeong, Seong-Eun Yoon
1Division of Cardiology, Department of Internal Medicine, Gyeongsang National University College of Medicine, Jinju, Korea.
Korean Circulation Journal
|March 2, 2011
Summary
Left main coronary artery (LMCA) disease can stem from vasospasm, not just atherosclerosis. This case highlights successful treatment of isolated LMCA spasm using nitrates and calcium channel blockers.
Area of Science:
- Cardiology
- Vascular Medicine
Background:
- Left main coronary artery (LMCA) disease is typically caused by atherosclerosis.
- Vasospasm is a less common cause of LMCA obstruction.
Purpose of the Study:
- To report a case of isolated left main coronary artery spasm.
- To illustrate diagnostic findings and successful treatment.
Main Methods:
- A 61-year-old male presented with suspected LMCA ostial stenosis.
- Diagnosis utilized 64-slice multi-detector computed tomographic coronary angiography (MDCT-CA).
- Intravascular ultrasound (IVUS) aided in differentiating spasm from atherosclerotic lesions.
Main Results:
- MDCT-CA and IVUS revealed ostial stenosis of the LMCA.
- Findings suggested isolated LMCA spasm without significant atherosclerotic disease.
- The patient responded well to medical management.
Conclusions:
- Isolated LMCA spasm is a potential diagnosis for LMCA stenosis.
- Pharmacological treatment with nitrates and calcium channel blockers can be effective.
- Accurate differentiation from atherosclerosis is crucial for appropriate management.
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