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Table 1 Arrhythmia scoring system

From: Anti-arrhythmic effect of acupuncture pretreatment in the rats subjected to simulative global ischemia and reperfusion—involvement of intracellular Ca2+ and connexin 43

Arrhythmia score Type of arrhythmia
0 No arrhythmia
1 Atrial arrhythmias or occasional PVC
2 Frequent PVC
3 VT (1–2 episodes)
4 VT (>3 episodes) or VF (1–2 episodes)