Reversal of Pacing‐Induced Cardiomyopathy After Upgrade to Left Bundle Branch Area Pacing: A Case Report

FIGURE 1. Preoperative and postoperative fluoroscopic images. (A) Preoperative image showing right ventricular septal pacing. (B) Postoperative image showing left bundle branch area pacing.

FIGURE 2. Preoperative and postoperative electrocardiograms. (A) Preoperative ECG demonstrating right ventricular septal pacing with a QRS duration of 182 ms. (B) Postoperative ECG demonstrating left bundle branch area pacing with a QRS duration of 136 ms.

FIGURE 3. Preoperative and postoperative echocardiographic images. (A) Preoperative parasternal long‐axis view showing a left ventricular end‐diastolic diameter of 65 mm (arrow). (B) Preoperative M‐mode measurement showing a left ventricular ejection fraction of 35%. (C) Two‐month postoperative parasternal long‐axis view showing a left ventricular end‐diastolic diameter of 50 mm (arrow). (D) Two‐month postoperative M‐mode measurement showing an ejection fraction of 45%. (E) Two‐month postoperative echocardiogram showing the ventricular lead traversing the interventricular septum and pacing the left ventricular septal surface (1, electrode; 2, ventricular septum).