Acute Severe Chest Pain with ST-Segment Elevation in Inferior Leads During Pharmacological Cardioversion of Paroxysmal Supraventricular Tachycardia: A Case Report

Paroxysmal supraventricular tachycardia (PSVT) is a frequently encountered arrhythmia in emergency departments, significantly affecting cardiac function and hemodynamics. The sudden onset of severe chest pain with accompanying ST-segment elevation on the electrocardiogram (ECG) during pharmacological cardioversion is rare but requires immediate intervention with coronary vasodilators, anticoagulants, and antiplatelet agents. Continuous ECG monitoring and assessment of cardiac biomarkers are essential. In facilities with appropriate resources, urgent coronary angiography is recommended to evaluate coronary anatomy, blood flow, and collateral circulation. Due to the rarity of this presentation, we report this case as a reference for clinical diagnosis and management.