Table 1.
Programming of home monitoring and levels of notification for clinical and technical events
| Study group |
|||
|---|---|---|---|
| Notification levela | Active | Control | |
| Technical | |||
| >7 days absence of transmission not explained remotely | I | ON | ON |
| System integrity | |||
| Impedance (ohm) | |||
| Lead | |||
| Ventricular <250 or >1500 | I | ON | OFF |
| Atrial <250 or >1500 | I | ON | OFF |
| Last shock <25 or >110 | I | ON | OFF |
| Special implant statusb | I | ON | ON |
| Elective replacement indicator (low battery) | I | ON | ON |
| Clinical | |||
| Therapy | |||
| Ineffective 30 J shock | I | ON | OFF |
| Ventricular tachycardia 1 (slow) detected | IIa | ON | OFF |
| Ventricular tachycardia 2 (fast) detected | IIa | ON | OFF |
| Ventricular fibrillation detected | IIa | ON | OFF |
| Supraventricular tachycardia detected | Iib | ON | OFF |
| Diagnostic | |||
| <90% intrinsic ventricular rhythm | IIb | OFF/ONc | OFF |
| First mode switch since last follow-up | IIb | OFF/ONc | OFF |
| >75% (18 h) spent in automatic mode switch | IIb | ON | OFF |
| Mean number of premature ventricular complexes >50/h | IIb | OFF/ONc | OFF |
ON/OFF, the investigator is/is not notified of the event.
aLevel I mandates an ambulatory visit as soon as possible; level II may prompt an ambulatory visit after online analysis of intracardiac electrograms (IIa) or system data (IIb).
bInactive ventricular tachycardia/fibrillation detection.
cAt the discretion of the investigator.