Hisian pacing restores cardiac function.

We report a 57-year-old male patient with dilated cardiomyopathy, NYHA function class III and complete left bundle branch block (CLBBB) who received cardiac resynchronization therapy using His-bundle pacing (HBP) when a left-ventricular lead could not be placed. In 10 months' follow up, his symptoms resolved rapidly, his QRS, left ventricular and left ventricular ejection fraction normalized. Recent reports support the conception that HBP may be an alternative or even better therapy for heart failure patients with CLBBB, especially if biventricular pacing is not feasible.