The Role of Adenosine A2b Receptor in Mediating the Cardioprotection of Electroacupuncture Pretreatment via Influencing Ca²⁺ Key Regulators

Table 1

Arrhythmia scoring system.

Arrhythmia scores	Type of arrhythmia
0	No arrhythmia
1	Atrial arrhythmias or an occasional PVC
2	Frequent PVC
3	VT (1∼2 episodes)
4	VT (>3 episodes) or VF (1-2 episodes)

PVC, premature ventricular contraction; VT, ventricular tachycardia; VF, ventricular fibrillation.