[Clinical observation on effect of yixin yidu decoction in treating acute viral myocarditis].

Objective: To observe the effect of Yixin Yidu Decoction (YXYDD, self-formulated according to the TCM therapeutic principle of supplementing Qi and Yin, clearing away evil Heat and toxic substances) in treating acute viral myocarditis (AVM).
Methods: Seventy-six patients of AVM were randomly divided into 2 groups, the 40 patients in the treated group were treated with YXYDD and the 36 patients in the control group treated with Qidong Yixin Oral Liquid (QDYX), the therapeutic course for both groups was 4 weeks.
Results: YXYDD was more effective than QDYX in improving clinical symptoms, adjusting the abnormal ECG, lowering the serum level of myocardial enzymes, improving the cardiac function of left ventricle and regulating the T-cell immunity (elevation of CD3, CD4 and CD4/CD8 ratio).
Conclusion: YXYDD is an effective medicine in treating AVM.