Table 1.
Patients characteristics and clinical follow‐up
| Pacemaker/CRTP; N = 22 (59%) | ICD/CRTD; N = 15 (41%) | All patients (N = 37) | |
|---|---|---|---|
| Male sex | 14 (64%) | 11 (73%) | 25 (68%) |
| AGE (years) | 66 [58‐81] | 72 [64‐78] | 72 [64‐79] |
| BMI (kg/m 2 ) | 25 [21.8‐26.6] | 25.2 [23.2‐26.6] | 25.3 [22.5‐26.8] |
| GFR (ml/min/1.73m 2 ) | 68.5 [45.5‐80.8] | 70 [54.5‐78.5] | 66 [46‐77] |
| Severe CKD (GFR < 30 mL/min) | 2 (9%) | 2 (12%) | 4 (11%) |
| Underlying heart disease | |||
| Ischemic | 4 (18%) | 2 (13%) | 6 (16%) |
| Dilatative | 3 (14%) | 11 (73%) | 14 (38%) |
| Hypertensive | 3 (14%) | 0 (0%) | 4 (11%) |
| Valvular | 2 (8%) | 1 (6%) | 3 (8%) |
| Other | 4 (18%) | 1 (6%) | 4 (11%) |
| None | 6 (27%) | 0 (0%) | 6 (16%) |
| Hypertension | 11 (50%) | 10 (67%) | 21 (57%) |
| Diabetes | 1 (4%) | 0 (0%) | 1 (3%) |
| Smoke | 2 (9%) | 1 (6%) | 3 (8%) |
| CRT indication | 5 (13%) | 13 (35%) | 18 (48%) |
| AVB in permanent AF | 3 (8%) | — | 3 (8%) |
| AVB second‐3rd in sinus rhythm | 8 (21%) | — | 8 (21%) |
| SSS + (AVB first or LBBB or CSH) | 7 (19%) (3/2/1) |
— | 7 (19%) |
| Clinical events at follow‐up | |||
| VT/VF | 1 (4%) | 3 (20%) | 4 (11%) |
| NSVT | 7 (32%) | 8 (53%) | 15 (40%) |
| Appropriate ATP and/or shock | NA | 3 (20%) | 3 (8%) |
| Inappropriate therapy delivery | NA | 0 (0%) | 0 (0%) |
| Infections | 0 (0%) | 1 (7%) | 1 (3%) |
| Hospitalization for HF | 4 (18%) | 1 (7%) | 5 (13%) |
| Hospitalization for VT recurrence | 0 (0%) | 1 (7%) | 1 (3%) |
| Hospitalization for non‐cardiac reasons | 7 (32%) | 2 (14%) | 9 (24%) |
| Death from cardiac causes | 1 (4%) | 0 (0%) | 1 (3%) |
Abbreviations: AF, atrial fibrillation; ATP, antitachycardia pacing; AVB, atrio‐ventricular block; BMI, body mass index; CKD, chronic kidney disease; CRT, cardiac resynchronization therapy; CSH, carotid sinus hypersensitivity; GFR, glomerular filtration rate; HF, heart failure; LBBB, left bundle branch block; NA, not applicable; NSVT, non‐sustained ventricular tachycardia (four beats up to 30 seconds or to detection cutoff time); SSS, sick sinus syndrome; VF, ventricular fibrillation; VT, ventricular tachycardia.