Reversible T-wave inversions during left bundle branch area pacing

• DOI: 10.33963/kp.a2022.0167
• Publication Date: 2022-11-13T08:28:43Z
• Authors: Jie Geng; Zhixin Jiang; Shigeng Zhang; Xiujuan Zhou; Yuanyuan Chen; Meng Chen; Chongchong Chen; Qijun Shan
• Keywords: Interquartile range; Bundle branch block

Our clinical observation found that T-wave inversions (TWIs) appeared during left bundle branch area pacing (LBBAP); however, the incidence and influencing factors were unclear. The study aimed to investigate effects of LBBAP on explore possible associated with TWIs.This was a retrospective cohort study. An electrocardiogram (ECG) acquired at baseline after LBBAP. Baseline characteristics, ECG parameters, troponin T (TnT) levels compared between non-TWIs TWIs groups. Multivariable logistic analyses performed adjust for potential confounders identify predictive LBBAP.A total 398 consecutive patients who underwent successful assessed inclusion May 2017 Jan 2021, 264 (66.3%) had TWIs. mean (standard deviation [SD]) QRS duration (QRSd) longer in group (125.9 [34.5] ms vs. 98.2 [18.1] ms; P <0.001). regression analysis suggested QRSd >120 an independent predictor partially or com-pletely recovered 151/172 (87.8%) follow-up, median (interquartile range [IQR]) follow-up 10 days (7 5.5 months). complete block (CLBBB) occurred more frequently inferior wall leads (II, III, aVF) anterior (V1-V4) (P <0.05). Patients right (CRBBB) prone high lateral (I aVL) There no significant differences TnT groups.TWIs clinically frequent recoverable. independently