A combination of western and Chinese medicine has the best outcome for COVID-19 patients

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Background: Since the outbreak of coronavirus disease 2019 (COVID-19) in late 2019, it has evolved into a global pandemic that has become a substantial public health concern. COVID-19 is still causing a large number of deaths in several countries around the world because of the lack of effective treatment.

Aim: To systematically compare the outcomes of COVID-19 patients treated with integrated Chinese with western medicine versus western medicine alone by pooling the data of published literature, and to determine if integrated Chinese with western medicine treatment of COVID-19 patients has better clinical outcomes.

Methods: We searched PubMed, Embase, Cochrane Central Register of Controlled Trials (CENTRAL), China Clinical Trial Registry, Chinese Biomedical Literature Database (CBM), China National Knowledge Infrastructure (CNKI) and Wanfang databases using keywords related to COVID-19, traditional Chinese medicine (TCM) and treatment effect. The search deadline was until 10 February 2021. All randomised controlled (RC) and non-randomised controlled (NRC) clinical trials of the integrated Chinese with western medicine or western medicine treatment of COVID-19 patients were included.

We analysed the effective rate, cure rate, exacerbation rate, turning negative rate of viral nucleic acid, remission rate and remission time of symptoms such as fever, cough, feebleness and chest computed tomography (CT) and the number of white blood cells (WBCs) and lymphocytes (LYM) of the COVID-19 patients. For qualitative and quantitative data, the ratio risk (RR) and weighted mean difference (WMD) were used as the indexes of the statistical analysis, respectively. RevMan 5.4 was used to perform meta-analyses and forest plots with the fixed-effects and random-effects models. Cochrane risk of bias tool (RoB 2.0) was used to assess the risk of bias in the included randomised controlled trials, whereas risk of bias in non-randomised studies of interventions was used to assess the risk of bias in NRC trials.

Results: This research includes 16 studies with 1645 valid confirmed COVID-19 patients, among which 895 patients of the experimental group received integrated Chinese with western medicine treatment whereas 750 patients of the control group received western medicine treatment. The outcomes were assessed in three aspects, that is, overall indicator, symptoms indicator and blood indicator, respectively, and the results showed that the integrated Chinese with western medicine group had better treatment outcomes compared with the western medicine.

Among the overall indicators, the integrated Chinese with western medicine group displayed a higher effective rate (RR = 1.24, 95% confidence interval (CI): 1.16-1.33), clinical cure rate (RR = 1.27, 95% CI: 1.03-1.56) and lower exacerbation rate (RR = 0.36, 95% CI: 0.25-0.52), but no statistical difference was observed in the turning negative rate of viral nucleic acid (RR = 1.20, 95% CI: 0.78-1.85).

Among the symptom indicators, the ICW group had a higher fever remission rate (RR = 1.24, 95% CI: 1.09-1.42), less fever remission time (WMD = -1.49, 95% CI: -1.85 to -1.12), a higher cough remission rate (RR = 1.38, 95% CI: 1.10-1.73) and a feebleness remission rate (RR = 1.45, 95% CI: 1.18-1.77), less cough remission time (WMD = -1.61, 95% CI: -2.35 to -0.87) and feebleness remission time (WMD = -1.50, 95% CI: -2.38 to -0.61) and better improvement in chest CT (RR = 1.19, 95% CI: 1.11-1.28).

For blood indicator, the number of WBCs in the blood of patients of integrated Chinese with western medicine group rebounded significantly (WMD = 0.35, 95% CI: 0.16-0.54), and the recovery of LYM in the blood was more obvious (WMD = 0.23, 95% CI: 0.06-0.40).

Conclusion: The results of this study show that the outcomes in COVID-19 patients treated by the integrated Chinese with western medicine is better than those treated by the western medicine treatment alone, suggesting that western medicine and traditional Chinese medicine can be complementary in the treatment of COVID-19.

Reference: https://pubmed.ncbi.nlm.nih.gov/34986905/