Table 1.
Baseline clinical characteristics of the study population (n = 143).
Table 2.
Comparison of ECG characteristics according to heart failure hospitalization.
Fig 1.
Kaplan-Meier survival analysis for hospitalization for heart failure.
(A) Temporal increase in QRS duration of <4ms/year (red line) versus ≥4 ms/year (blue line). (B) Development of a right bundle branch block (RBBB) pattern (red line) versus a non-RBBB [i.e., left bundle branch block (LBBB), RBBB with left anterior hemiblock, or non-specific intraventricular conduction disturbance (NSIVCD)] pattern (blue line). (C) Classification into four groups based on the temporal increase in QRS duration and the development of BBB patterns: patients with the temporal increase in QRS duration of <4 ms/year and the development of an RBBB pattern (red line), patients with the temporal increase in QRS duration of ≥4 ms/year and the development of an RBBB pattern (green line), patients with the temporal increase in QRS duration of <4 ms/year and the development of a non-RBBB pattern (blue line), and patients with the temporal increase in QRS duration of ≥4 ms/year and e development of a non-RBBB pattern.
Table 3.
Univariate and multivariate survival analyses of heart failure hospitalization.
Table 4.
Comparison of ECG characteristics according to cardiovascular events.
Fig 2.
Kaplan-Meier survival analysis for cardiovascular events.
(A) Temporal increase in QRS duration of <5 ms/year (red line) versus ≥5 ms/year (blue line). (B) Development of an RBBB pattern (red line) versus a non-RBBB (i.e., LBBB, RBBB with left anterior hemiblock, or NSIVCD) pattern (blue line). (C) Classification into four groups based on the temporal increase in QRS duration and the development of BBB patterns: patients with the temporal increase in QRS duration of <5 ms/year and the development of an RBBB pattern (red line), patients with the temporal increase in QRS duration of ≥5 ms/year and the development of an RBBB pattern (green line), the temporal increase in QRS duration of <5 ms/year and the development of a non-RBBB pattern (blue line), and patients with the temporal increase in QRS duration of ≥5 ms/year and the development of a non-RBBB pattern (orange line). Abbreviations are as Fig 1.
Table 5.
Univariate and multivariate survival analyses of cardiovascular events.