Permanent left atrial electromechanical dissociation after conversion of atrial fibrillation in a patient with interatrial block

Abstract

In a 52-year-old woman, pharmacological conversion to sinus rhythm was achieved after 31 days of atrial fibrillation. In spite of permanent sinus rhythm, even 7 months after the conversion, no mechanical left atrial activity was restored, although right atrium showed normal contractility.