Table 1.

Clinical efficacy evaluation criteria

Efficacy grading	Evaluation criteria
Markedly effective	The patient’s disease signs and clinical symptoms disappeared, without attack of angina pectoris or with decrease of the number of attacks by more than 80%, and the ECG returned to normal.
Effective	The patient’s disease signs and clinical symptoms were greatly alleviated, with decrease in the number of angina pectoris attacks by less than 80% but more than 50% or 50%, and the T wave and ST segment of ECG were improved.
Ineffective	The patient’s disease signs and clinical symptoms were not alleviated or even worsen, with decrease in the number of angina pectoris attacks by < 50%, and the ECG showed no improvement.