27Nov 2021
Botulinum toxin for chronic rhinitis: A systematic review and meta‐analysis

Botulinum toxin for chronic rhinitis: A systematic review and meta‐analysis

Botulinum toxin type A (BTX‐A) is a potential treatment for chronic rhinitis. This study aimed to assess the effectiveness and safety of BTX‐A in treating patients with chronic rhinitis. Systematic searches of MEDLINE, Scopus, and EMBASE databases were performed. Randomized controlled trials (RCTs) that assessed the efficacy of BTX‐A in allergic rhinitis and/or nonallergic rhinitis patients, compared with either placebo or active treatment, were included. The outcomes were total nasal symptom (TNSS), disease‐specific quality of life (QOL), and adverse events. Nine RCTs (340 patients) met the eligibility criteria. Compared with placebo, the ≤ 12‐week effects favored BTX‐A injection on TNSS (standardized mean difference [SMD] ‐2.22, 95% confidence interval [CI] ‐3.27 to ‐1.17, p < 0.01, four RCTs). Beneficial effects > 12 weeks over placebo (MD ‐9.69, 95% CI ‐11.29 to ‐8.09, p < 0.01, one RCT) were demonstrated up to 24 weeks...

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