Key result
Intracoronary nitroglycerin completely resolves severe circumflex spasm mimicking STEMI.
Why the study?
Acute myocardial infarction can occur with normal coronary arteries, and the causes including coronary artery spasm require further elucidation.
Case Report (n=1)
Coronary spasm may mimic STEMI; hypothesis-generating for routine intracoronary GTN before stenting in ambiguous lesions.
A 62-year-old lady was admitted with clinical and electrocardiograph features of acute myocardial infarction. Urgent coronary arteriography was performed, demonstrating a single discrete stenosis of one coronary artery. Following intracoronary injection of GTN, this stenosis completely resolved, as the symptoms did. The causes of acute myocardial infarction with normal coronary arteries are reviewed.
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Gosai et al. (2010) conducted a case report in Coronary Artery Spasm presenting as ST Elevation Myocardial Infarction (n=1). Intracoronary glyceryl trinitrate (GTN) was evaluated on Resolution of apparent luminal stenosis and symptoms.
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