Key result
Cardiac arrest survivor reveals slit-like 50% right coronary artery ostial stenosis on angiography.
Case Report (n=1)
This case illustrates the potential utility of advanced imaging modalities in identifying the etiology of exercise-induced cardiac arrest when standard assessments are inconclusive.
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Slit-like RCA ostial stenosis in one arrest survivor warrants no practice change; leaves open its prevalence and causality.
A 54-year-old man experienced cardiac arrest during exercise, presenting with ventricular fibrillation (VF), and was resuscitated with defibrillation. On admission, the patient was hemodynamically stable, and electrocardiography showed no ischemic ST-T changes. Echocardiography revealed preserved left ventricular function. Invasive coronary angiography demonstrated a slit-like 50% stenosis at the ostium of the right coronary artery (RCA) without significant stenosis or occlusion elsewhere.
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Hamamoto et al. (2026) conducted a case report in Cardiac arrest with ventricular fibrillation (n=1). Coronary computed tomography angiography and late iodine enhancement was evaluated. In a 54-year-old man resuscitated from cardiac arrest, invasive coronary angiography revealed a slit-like 50% stenosis at the right coronary artery ostium.
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