Impact of pre-existing conduction abnormalities on permanent pacemaker implantation after transcatheter aortic valve replacement: A meta-analysis

Figure 5 Forest plot depicting pooled incidence of new-onset left bundle branch block following transcatheter aortic valve replacement across 11 studies (n = 4907). Random-effects model: Pooled proportion 0.38 (95%CI: 0.27-0.50); I² = 98.4%, P < 0.0001, indicating substantial heterogeneity. Individual study proportions ranged from 0.11 (Muntané-Carol et al[18]) to 0.71 (Van Gils et al[29]), reflecting marked variation attributable to valve platform and implantation technique. LBBB: Left bundle branch block.