Demographic and implant parameters

Characteristics

Male gender

Age (years)

Ischemic cardiomyopathy

NYHA class II/III

ECG characteristics

QRS duration (ms)

LBBB

Conduction disorder

Sinus node disease

Chronic AF

Paroxysmal AF

Medications

Beta-blockers

Diuretics

ACE inhibitor

Amiodarone

Comorbidities

Atrial hypertension

Diabetes mellitus

Coronary angioplasty

Sleep apnea

LV lead position (final vein)

Lateral

Posterolateral

Anterior

Posterior

Great cardiac vein

Position in the vein

Proximal

Mid

Distal

74 (82.2%)

70.1 ± 8.9 [46; 86]

42 (48.8%)

32 (37.7%)/46 (54.1%)

153.9 ±25.3 [80; 208]

65 (73.9%)

4 (4.5%)

13 (14.4%)

8 (8.9%)

60 (66.7%)

50 (55.6%)

37 (41.1%)

17 (18.9%)

36 (40.0%)

20 (22.2%)

16 (17.8%)

9 (10.0%)

66 (75.9%)

9 (10.3%)

4 (4.6%)

2 (2.3%)

1 (1.2%)

18 (23.1%)

39 (50.0%)

21 (26.9%)