Abstract
Background:Chronic heart failure (CHF) is the final destination of most cardiovascular diseases and the most important cause of death. The main clinical manifestations were pulmonary congestion and decreased cardiac output. The purpose of this systematic review is to evaluate the effectiveness of Yiqi Huoxue therapy on CHF.Methods:Seven electronic databases were searched to identify randomized controlled trials of Yiqi Huoxue (YQHX) method for CHF until April 30, 2020. The quality assessment of the included trials was performed by employing the Cochrane Risk of Bias tool and Jadad scale.Results:Nineteen randomized controlled trials were included in our review. Most of the included trials were considered as low quality. The aggregated results suggested that experimental group with YQHX therapy got better effect in increasing overall response rate (risk ratio, RR = 1.21, 95% confidence interval, CI 1.15–1.27), traditional Chinese medicine (TCM) syndrome response rate (RR = 1.26, 95% CI 1.17–1.36), 6-minute walk test (RR = 2.14, 95% CI 1.05–3.22), left ventricular ejection fraction (RR = 0.97, 95% CI 0.60–1.34), and stroke volume (standardized mean difference, SMD = 0.94, 95% CI 0.23–1.56), and in lowering down the TCM syndrome scores (SMD = –0.78, 95% CI –0.91 to –0.64), Minnesota Living with Heart Failure questionnaire (SMD = –1.01, 95% CI –1.56 to –0.45), 6-month readmission rate (RR = 0.50, 95% CI 0.28–0.89), B-type natriuretic peptide (SMD = –0.89, 95% CI –1.52 to –0.25), NT-proBNP (SMD = –2.07, 95% CI –3.34 to –0.08), and C-reactive protein (SMD = –2.04, 95% CI –4.12 to –0.67) as compared to using conventional Western medicine alone. There were no significant differences found in left ventricular end diastolic diameter and E/E′ between experimental groups and control groups. Moreover, the included sample capacity is small and the trails are all in Chinese. Quality of the evidence for outcomes were “low” and “very low” according to the GRADE assessment.Conclusion:YQHX is a valid complementary and alternative therapy in the management of CHF, especially in improving overall response rate, TCM syndrome response rate, 6-minute walk test, left ventricular ejection fraction, and stroke volume and in decreasing TCM syndrome scores, Minnesota Living with Heart Failure questionnaire, 6-month readmission rate, B-type natriuretic peptide, NT-proBNP, and C-reactive protein levels. Hence, YQHX is a relatively effective and safe therapy for CHF patients, which can be popularized and applied in the clinic. More long-term follow-up studies are still needed to substantiate and confirm the current findings.
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