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Measurement of Myocardial Lactate Production for Diagnosis of Coronary Microvascular Spasm
Published on: September 17, 2021
Diffuse triple-vessel coronary spasm as a cause of asystole and syncope
Qiang Liu1, Chengzhi Gao1, Cuixia Liu1
1Department of Cardiology, The Fourth People's Hospital of Jinan, Medical School, Tai Shan Medical College, Jinan, PR China.
Insights
Coronary artery spasm can cause syncope. This case highlights diffuse, three-vessel coronary artery spasm as a cause of unexplained syncope and asystole.
Area of Science:
- Cardiology
- Pathophysiology
- Clinical Medicine
Background:
- Vasospasm is a key factor in ischemic heart disease, potentially leading to myocardial infarction and sudden death.
- Coronary artery spasm typically affects single vessels, but diffuse involvement can occur.
- Widespread coronary artery spasm can cause significant ischemia, leading to serious cardiac events.
Observation:
- A patient presented with syncope attributed to documented, diffuse vasospasm affecting three major coronary arteries.
- The vasospasm was severe enough to cause widespread myocardial ischemia.
Findings:
- Diffuse coronary artery vasospasm involving three major vessels can manifest as unexplained syncope.
- This condition can lead to life-threatening arrhythmias, including asystole.
Implications:
- Clinicians should consider coronary artery spasm as a potential cause of unexplained syncope, especially when diffuse.
- Early recognition and management of coronary artery spasm are crucial to prevent fatal outcomes.
- This case underscores the importance of investigating vasospasm in patients with syncope and cardiac events.
Abstract:
Vasospasm plays an important role in the pathogenesis of ischemic heart disease, including unstable angina, myocardial infarction, and sudden death. Coronary artery spasm rarely involves different coronaries in the same time. Three-vessel spasm may be accompanied by ST-segment elevation, lethal arrhythmias, and syncope due to the wide extent of ischemia. In the present case, a patient with syncope secondary to documented diffuse vasospasm involving 3 major coronary arteries was reported. This case report indicated that in case of unexplained syncope, asystole secondary to coronary artery spasm should be considered as a possible cause.
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