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Supraventricular arrhythmias, other than atrial fibrillation or flutter, are relatively uncommon due to ischemia. Their occurrence often indicates myocardial dysfunction and they may, by themselves, cause congestive heart failure or exacerbate ongoing myocardial ischemia. The increase in the prevalence of SVT during an acute MI has been ascribed to atheromatous disease of the arteries supplying the atrioventricular (AV) node which is a rare cause. Ischemia of AV node results in in-homogeneity of the refractory period of AV nodal pathways and precipitating AVNRT[1]. Statin therapy, possibly due to an anti-inflammatory effect, has been associated with a reduction in SVT recurrences in patients with SVT, ischemic heart disease, and after cardiac bypass surgery. In a retrospective study of over 3300 patients presenting with acute myocardial infarction and in sinus rhythm, statin therapy (prescription within 48 hours of hospitalization) was associated with a reduced risk of SVT [2] predominantly AF (Atrial Fibrillation) (Odds Ratio 0.64, 95% CI 0.45-0.92). We report a case of CAD (coronary artery disease)of RCA and LAD presenting as PSVT and its recurrences are prevented after revascularization in its 6 months follow-up.

PTCA or RF Ablation: Which is to be Done First for PSVT Associated with CAD