RESUMO
Objective To observe the clinical therapeutic efficacy of prescription of supplementing qi and activating yang on sick sinus syndrome. Methods According to the random number table, 231 patients with sick sinus syndrome were randomly divided into treatment group and control group. One hundred and fifty patients in the treatment group were given the Chinese herbal medicine while the other 81 patients in the control group were given atropine. The therapeutic course was four weeks in each group. The changes of clinical manifestations and electrocardiogram (24 h Holter monitoring ECG) of two groups were compared. Results The total effectiveness of treatment group was 98.67% (148/150), the control group was 41.98% (34/81), there was a significant difference in the clinical curative efficacy (P<0.01). The total effective rate of the treatment group was 87.3%(131/150) and that of the control group was 35.9%(29/81), and the average increases of heart rates in 24 hours were 9/min and 4/min, respectively. There was significant difference between the two groups (P <0.05). Conclusion The prescription of supplementing qi and activating yang was effective in improving the clinical symptoms and heart rates of patients with sick sinus syndrome.