2.6 Data collection
Baseline patient characteristics, ECG features, and pacing indications
were collected. After implantation final pacing thresholds, R‐wave
sensing amplitudes, and lead impedances were measured during both uni‐
and bipolar pacing. The paced QRS duration and pLVAT were measured.
Number of implantation attempts and fluoroscopy time were recorded. All
patients underwent post-procedural transthoracic echocardiographic
evaluation to assess potential LBBAP implantation‐related complications.