Abstract
Evidence regarding the effect of Panax notoginseng saponins (PNS) on treating elderly stroke patients is scare and inconsistent. This study investigated the efficacy and safety of PNS by means of meta-analysis so as to provide an evidence-based reference for the treatment of elderly patients with stroke. We searched the PubMed, Embase, Cochrane Library, Web of Science, CNKI, VIP, Wanfang, and China Biomedical Database to identify the eligible randomized controlled trials (RCTs) concerning using PNS to treat elderly people with stroke from their inception to first, May 2022. Meta-analysis was used for pool analysis of the included studies, whose quality was assessed via Cochrane Collaboration's RCT risk of bias tool. Altogether 206 studies published between 1999 and 2022 with a low risk of bias were included, covering 21,759 participants. The results showed that the improved neurological status shown in the intervention group with PNS alone was statistically significant (SMD = -0.826, 95% CI: -0.946 to -0.707) in contrast to the control group. The total clinical efficacy (Relative risk (RR) = 1.197, 95% Confidence interval (CI): 1.165 to 1.229) and daily living activities (SMD = 1.675, 95% C: 1.218 to 2.133) of elderly stroke patients were significantly improved as well. In addition, the invention group using PNS combined with WM/TAU displayed significant improvement in neurological status (SMD = -1.142, 95% CI: -1.295 to -0.990) and the total clinical efficacy (RR = 1.191, 95% CI: 1.165 to 1.217) compared with the control group. Single PNS intervention or PNS combined with WM/TAU significantly improves the neurological status, the overall clinical efficacy and daily living activities of elderly stroke patients. However, more multicenter RCT research with high quality is required in the future to verify the results in this study. The trial registration number: Inplasy protocol 202330042. doi:10.37766/inplasy2023.3.0042.
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