Version July 2025
| Characteristic | Reentrant | Triggered | Automatic |
| Initiation by extrastimuli and/or continuous pacing | Yes | Yes | No |
| Initiation by continuous pacing depends upon the rate and number of stimuli | No | Yes | No |
| Termination by extrastimuli | Yes | No | No |
| Termination by continuous pacing (overdrive) | Yes | Yes | No |
| Overdrive suppression of tachycardia | No | No | Yes |
| Overdrive enhancement of tachycardia | Yes | Yes | No |
| Entrainment possible | Yes | No | No |
| First P wave identical to P waves in arrhythmia | No | Sometimes | Yes |
| Warm-up or acceleration of pacemaker after onset | No | Sometimes | Yes |
