Abstract:Objective To explore the clinical efficacy of Wenyang Huoxue Xiefei Lishui Formula in decompensation of chronic cor pulmonale (CCP).Methods We selected 74 patients with decompensation of CCP in Beijing Ditan Hospital from Mar 2017 to July 2018, and divided them into conventional group (conventional western medicine treatment, 37 cases) and the intervention group (conventional treatment combined with Wenyang Huoxue Xiefei Lishui Formula, 37 cases). The symptoms, signs, cardiac function, hemorheological parameters and adverse drug reactions were compared between the two groups.Results The symptom scores of cough, expectoration, wheezing, chest tightness and edema in the intervention group were significantly lower than those in conventional group (P < 0.05). The overall effective rate of cardiac function improvement in the intervention group was significantly higher than that in the conventional group (97.06% vs. 78.13%, P < 0.05). After 14 days of treatment, the plasma viscosity, whole blood viscosity, and hematokrit of the intervention group were significantly lower than those of the conventional group (P < 0.05). There was no significant difference in abnormalities of liver function, renal function, and electrocardiogram as well as the incidence of rash between the conventional group and the intervention group (P > 0.05).Conclusions Wenyang Huoxue Xiefei Lishui Formula is an adjuvant treatment for patients with decompensation of CCP. It can improve the symptoms and signs of patients and the curative effect with high safety.