Pacemaker-Related Reversible Right Heart Failure

Introduction

An under-recognised complication of permanent pacemakers is an increase in tricuspid regurgitation (TR) due to interference with the tricuspid valve apparatus, which can cause right ventricular (RV) dysfunction and right heart failure. We use a recent case to illustrate this phenomenon and highlight this as a differential diagnosis in patients with right heart failure and previously implanted pacemaker or defibrillator.