Table 1.
Criteria for arrhythmia identification
| Arrhythmia | Criteria for identification |
|---|---|
| Second degree AV block (AVB) | Absence of QRST complexes following P wave, without complete AV-dissociation |
| Advanced AVB (aAVB) | More than one consecutive blocked atrial depolarization |
| Sinus pause (SP) | Intervals greater than two seconds between consecutive sinus complexes |
| Ventricular premature complexes (VPC) | Abnormal QRS complex that is bizarre, premature, large, and not associated with a P wave |
| Ventricular escape complexes (VEsC) | Abnormal QRS complex that follows a pause that is equal or longer than the preceding R-R interval, bizarre, large and not associated with a P wave |
| Ventricular tachycardia (VT) | Runs of more than 3 ventricular premature complexes occurring in succession at a rate of greater than 160 beats per minute |
| R-on-T phenomenon (RT) | Ventricular premature complex that falls on preceding beat’s T wave (RTs were also counted as VPC) |
| Atrial premature complexes (APC) | Normal QRS complex that follows a premature P wave, which is configured differently than sinus P waves. The prematurity exceeds the maximum observed heart rate after glycopyrrolate administration |
| Atrial tachycardia (AT) | Runs of more than 3 atrial premature complexes |