Double potentials at successful catheter ablation site of left-sided retrograde accessory pathway: Mitral isthmus block or conduction through coronary sinus musculature

Abstract Introduction We studied three patients who had orthodromic atrioventricular reentrant tachycardia (AVRT) using left lateral accessory pathway (AP), with difficulty in identifying the earliest site of retrograde atrial activation. Methods and results Electrophysiological studies and radiofre...

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