Related Experiment Video
Updated: Aug 20, 2026

Measurement of Myocardial Lactate Production for Diagnosis of Coronary Microvascular Spasm
Published on: September 17, 2021
Large myocardial infarction and a severe spasm of the left coronary artery
1Herzzentrum Ludwigshafen, Kardiologie Klinikum der Stadt Ludwigshafen, Bremserstrasse 79, 67073 Ludwigshafen, Germany. MarkB@klilu.de
Insights
Acute myocardial infarction with normal coronary arteries can be challenging. This case highlights left coronary artery spasm diagnosed with contrast-enhanced cardiac MRI, treated successfully with intracoronary medications.
Area of Science:
- Cardiology
- Diagnostic Imaging
Background:
- Acute myocardial infarction (AMI) diagnosis can be uncertain when initial coronary angiography reveals normal arteries.
- Coronary artery spasm is a potential cause of AMI that requires specific diagnostic approaches.
Observation:
- A 41-year-old woman presented with acute anterior myocardial infarction.
- Initial coronary angiography showed no obstructive coronary artery disease, leading to diagnostic uncertainty.
Findings:
- Severe spasm of the left coronary artery was identified as the cause of infarction.
- Contrast-enhanced cardiac magnetic resonance imaging confirmed the diagnosis of myocardial infarction and coronary artery spasm.
- Treatment with intracoronary nitroglycerine and verapamil successfully resolved the spasm.
Implications:
- This case underscores the importance of considering coronary artery spasm in patients with AMI and normal coronary arteries.
- Contrast-enhanced cardiac MRI is a valuable tool for diagnosing coronary artery spasm and associated myocardial infarction.
- Intracoronary vasodilator therapy offers an effective treatment option for severe coronary artery spasm-induced myocardial infarction.
Abstract:
In patients presenting with an acute myocardial infarction, normal coronary arteries in the first coronary angiography lead to diagnostic uncertainty. We report the case of a 41-year-old woman with an acute anterior infarction and a severe spasm of the left coronary artery, which was treated with intracoronary nitroglycerine and verapamil. The new technique of contrast-enhanced cardiac magnetic resonance imaging was used to confirm the diagnosis.
Related Concept Videos
Acute Coronary Syndrome I: Introduction
Imbalances in Cardiac Output
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send blood...
Myocarditis I: Introduction
Coronary Artery Disease III: Clinical Manifestations
Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations
Mitral Stenosis I: Introduction
