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 2 LVEF and TSI changes before and after CSP. (A) LVEF of 38% in August 2022. (B) Seventeen-segment bullseye plot showing LV longitudinal strain, ranging from −4.7% to −28.1% before CSP. (C) Seventeen-segment bullseye plot showing the time to peak LV systolic strain, ranging from 326 ms to 460 ms before CSP. (D) LVEF of 54% at 6 months post-CSP. (E) Seventeen-segment bullseye plot showing LV longitudinal strain, ranging from −4.8% to −26.2% at 6 months post-CSP. (F) Seventeen-segment bullseye plot showing the time to peak LV systolic strain, ranging from 217 ms to 369 ms at 6 months post-CSP. LVEF – left ventricle ejection fraction; EDV – end-diastolic volume; CSP – conduction system pacing; LV – left ventricle; TSI – tissue synchronization imaging.