Efficacy and safety of Ayurveda interventions for sinusitis: a systematic review and meta-analysis

Objectives: To provide a broad evaluation of the efficacy and safety of Ayurveda interventions for the management of sinusitis.

Methods: Five electronic databases for published research articles, three databases for the dissertation/doctoral thesis works, clinical trial registries, and hand searches were done till May 2021. All comparative clinical trials recruiting sinusitis patients of any age group, receiving Ayurveda intervention, regardless of forms, dosages, and ingredients, for not less than one week were included. The data extraction and the risk of bias (RoB) assessment were done by two reviewers independently.

Results: A total of 2,824 records were identified, of which 09 randomized parallel arms trials met inclusion criteria. No studies were found comparing Ayurveda vs. placebo or non-Ayurveda interventions. Combined Ayurveda therapy (CT) was statistically more beneficial compared with either procedural or non-procedural Ayurveda therapy alone in reducing symptoms nasal discharge (standardized MD -0.71, 95% CI -1.16 to -0.26, I ² 58%, 210 participants) and headache (standardized MD -0.44, 95% CI -0.86 to -0.02, I ² 56%, 218 participants), however, no significant difference was found in reducing symptoms nasal obstruction and loss of smell. No data related to the safety of Ayurveda intervention was found. All the trials (09) were having 'high' to 'some concern' overall bias.

Conclusions: Although individual studies appeared to produce positive results, very low certainty of total effect hindered to arrive at any conclusion regarding efficacy or safety of Ayurveda interventions for sinusitis. There is a need for well-designed-executed-reported clinical studies on clinically relevant outcomes.

Trial registration mumber: CRD42018103995.