A Systematic Review and Meta-analysis of Herbal Medicine on Chronic Obstructive Pulmonary Diseases

Overview

Journal Evid Based Complement Alternat Med

Specialty Rehabilitation Medicine

Date 2014 May 6

PMID 24795773

Citations 16

Authors

Hai Yong Chen

Chun Ho Ma

Ke-Jian Cao

James Chung-Man Ho

Eric Ziea

Vivian Taam Wong

Zhang-Jin Zhang

Affiliations

Soon will be listed here.

Abstract

Herbal medicine (HM) as an adjunct therapy has been shown to be promising for the chronic obstructive pulmonary disease (COPD). However, the role of herbs in COPD remains largely unexplored. In this present study, we conducted the systematic review to evaluate the efficacy of herbs in COPD. 176 clinical studies with reporting pulmonary function were retrieved from English and Chinese database. Commonly used herbs for acute exacerbations stage (AECOPD) and stable COPD stage (SCOPD) were identified. A meta-analysis conducted from 15 high quality studies (18 publications) showed that HM as an adjunct therapy had no significant improvement in pulmonary function (FEV1, FEV%, FVC, and FEV1/FVC) compared to conventional medicine. The efficacy of the adjunct HM on improving the arterial blood gas (PaCO2 and PaO2) for AECOPD and SCOPD remains inconclusive due to the heterogeneity among the studies. However, HM as an adjunct therapy improved clinical symptoms and quality of life (total score, activity score, and impact score of St. George's Respiratory Questionnaire). Studies with large-scale and double-blind randomized controlled trials are required to confirm the role of the adjunct HM in the management of COPD.

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