3.1 Baseline characteristics
We selected 139 patients who underwent the LBBAP in our hospital between
January 2019 and October 2020. Among them, 89 patients with acute
myocardial infarction and previous cardiac stent implantation were
excluded, leaving 50 patients (27 men) for analysis. As shown in Table
1, 38 patients had atrioventricular block, 4 had sinus syndrome, 4 had
ventricular tachycardia, 8 had dilated cardiomyopathy and 4 had
hypertrophic cardiomyopathy. The QRS interval after the LBBAP procedure
was significantly shorter than that before the procedure(124.9 ± 32.6ms
vs 113.4 ± 17.1ms, P<0.05 ).
Table 1 Baseline characteristics of patients.