Effective biventricular pacing is important to improve survival in patients with heart failure. We report a case of a patient with heart failure, who underwent cardiac resynchronization therapy, who had loss of biventricular pacing when in low atrial rhythm. We discuss the probable mechanism for the same.
Keywords: Cardiac Resynchronization Therapy with Defibrillation (CRT‐D); biventricular pacing; low atrial rhythm.
© 2021 The Authors. Journal of Arrhythmia published by John Wiley & Sons Australia, Ltd on behalf of Japanese Heart Rhythm Society.