RESUMEN
OBJECTIVE: To evaluate the long term therapeutic effect of Chinese prescription "Shen Yang" in the combined and sequential therapy for oral squamous cell carcinoma cases. METHODS: There are 238 cases with oral squamous cell carcinoma. They were divided into two groups randomly as "Shen Yang" experiment group and control group (placebo). 25 cases were precluded from the experiment group. 17 of them were due to unexperiment of taking "Shen Yang" within three months. 8 cases were lost of follow-up. 213 patients were included in this study. Among them, 104 cases in experiment group, and 109 cases in control one. Patients in both groups were followed-up for 5-10 years. Their life-curve was calculated by means of Logrank method. RESULTS: The survival rate of "Shen Yang" group was improved by 8.46%, 9.26%, 9.04% and 8.57% for 3-year, 5-year, 8-year and 10-year survival rates. But the differences between the two groups were not statistically significant (P=0.1936, P>0.05). CONCLUSION: Chinese prescription of "Shen Yang" had a tendency to improve the survival rate for oral squamous cell carcinoma patients.