27 September 2025
: Case report 
Restoration of Cardiac Function in Left Bundle Branch Block-Induced Cardiomyopathy via Conduction System Pacing: A Case Report
Unknown etiology, Challenging differential diagnosis, Unusual or unexpected effect of treatment, Diagnostic / therapeutic accidents, Rare disease, Educational Purpose (only if useful for a systematic review or synthesis)
Jing Wang BDEF 1, Bing Han AB 2, Xiaojuan Wang BDF 2, Zixian Chen BC 3, Wenqiang Li ABDE 4,5*DOI: 10.12659/AJCR.948576
Am J Case Rep 2025; 26:e948576
Figure 1 QRS duration changes before CSP. (A) Normal ECG with a QRS duration of 78 ms measured in December 2020. (B) LBBB with a QRS duration of 132 ms measured in August 2022. ECG – electrocardiogram; LBBB – left bundle branch block; CSP – conduction system pacing.