Table 1.
Alert transmission characteristics by device type
| Overall | CRT-P | ICD | IPG | CRT-D | |
|---|---|---|---|---|---|
| Total alert transmissions | 252,653 | 15,017 | 87,620 | 74,524 | 75,492 |
| Mean alert transmission time (hours ± SD) | 14.8 ± 34.0 | 17.2 ± 42.5 | 13.7 ± 29.5 | 17.0 ± 40.2 | 13.5 ± 30.2 |
| Median alert transmission time (hours) | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 |
| Time to receive 90% of transmissions (hours) | 22.2 | 22.1 | 22.1 | 24.5 | 20.9 |
| Number alerts/year per patient | 0.92 | 1.93 | 0.66 | 2.07 | 0.77 |
CRT-D = cardiac resynchronization therapy defibrillator; CRT-P = cardiac resynchronization therapy pacemaker; ICD = implantable cardioverter-defibrillator; IPG = implantable pulse generator.