Asymptomatic spontaneous coronary artery spasm can rarely present with acute ST elevation on routine ECG mimicking an acute myocardial infarction despite normal coronary anatomy.
Alerts clinicians to coronary spasm as rare STEMI mimic on routine ECG; hypothesis-generating for prevalence and triggers in asymptomatic patients.
Asymptomatic spontaneous coronary artery spasm is rare and there are no case reports in literature presenting with acute ST elevation on routine ECG. We present the case of a 68-year-old Caucasian man who presented to a primary care physician for a routine ECG as part of hypertension follow-up. ECG revealed ST elevation in inferior leads II, III and aVF with reciprocal ST depression in leads I, aVL and also ST depression in anterior leads V1, V2 and V3 suggesting ongoing inferoposterior ST elevation myocardial infarction. The patient was completely well, stable and asymptomatic and he was rushed immediately to the coronary care unit via emergency ambulance. The patient was subjected to a battery of urgent investigations which were all normal. Also an urgent coronary angiogram was undertaken which showed completely normal coronary anatomy.
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Mohammed et al. (2014) studied this question.
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