Abstract
Chinese herbal injections (CHIs) are commonly prescribed in China as adjuvant therapy for acute exacerbation of chronic obstructive pulmonary disease (AECOPD). However, evidence supporting the effect of CHIs on inflammatory factors for patients with AECOPD is insufficient, posing a challenge for clinicians to choose the optimal CHIs for AECOPD. This network meta-analysis (NMA) aimed to compare the effectiveness of several CHIs combined with Western Medicine (WM) and WM alone on the inflammatory factors in AECOPD. Randomized controlled trials (RCTs) on different CHIs for treating AECOPD were thoroughly searched from several electronic databases up to August 2022. The quality assessment of the included RCTs was conducted according to the Cochrane risk of bias tool. Bayesian network meta-analyses were designed to assess the effectiveness of different CHIs. Systematic Review Registration CRD42022323996. A total of 94 eligible RCTs involving 7,948 patients were enrolled in this study. The NMA results showed that using Xuebijing (XBJ), Reduning (RDN), Tanreqing (TRQ), and Xiyanping (XYP) injections combined with WM significantly improved treatment effects compared to using WM alone. XBJ + WM and TRQ + WM significantly changed the level of C-reactive protein (CRP), white blood cells, percentage of neutrophils, interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α). TRQ + WM showed the most significant effect in reducing the level of procalcitonin. XYP + WM and RDN + WM could reduce the level of white blood cells and the percentage of neutrophils. A total of 12 studies reported adverse reactions in detail, and 19 studies demonstrated no significant adverse reactions. This NMA showed that using CHIs combined with WM could significantly reduce the level of inflammatory factors in AECOPD. A combination of TRQ and WM may be a relatively prior adjuvant therapy option for AECOPD treatment considering its effects in reducing the levels of the anti-inflammatory mediators.
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