Δευτέρα 29 Αυγούστου 2022

The analgesic and anti‐hemorrhagic efficacy of platelet‐rich plasma in tonsillectomy: A systematic review and meta‐analysis of randomized controlled trials

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Abstract

Aim

To conduct a systematic review and meta-analysis of all randomized controlled trials (RCTs) that evaluated the analgesic and anti-hemorrhagic efficacy of platelet-rich plasma (PRP) among patients undergoing tonsillectomy.

Methods

PubMed, Scopus, Web of Science, Cochrane Central Register of Controlled Trials (CENTRAL), and Google Scholar databases were screened from inception until July 2021, and updated in December 2021. Risk of bias of the included studies was evaluated according to the Cochrane Collaboration tool. The efficacy endpoints were summarized as risk ratio (RR) or standardized mean difference (SMD) with 95% confidence interval (CI).

Results

Seven RCTs were analyzed, comprising a total of 392 patients. Risk of bias evaluation showed an overall high risk in one RCT, low risk in four RCTs, and some concerns in two RCTs. The pooled results revealed that the mean postoperative pain score was significantly reduced in favor of the PRP group compared with the control group (SMD=-1.38, 95% CI [-1.91, -0.85], p<0.001). Subgroup analysis showed the effect estimate was statistically significant for early postoperative pain (day 0 to day 3), without substantial difference between both groups on late postoperative pain (day 5 and day 7). Moreover, the rate of postoperative hemorrhage was significantly reduced in favor of the PRP group compared with the control group (RR=0.16, 95% CI [0.05, 0.50], p=0.001). Subgroup analysis showed the effect estimate was statistically significant for the rate of primary and secondary hemorrhage.

Conclusion

PRP was associated with significant reduction in postoperative pain and hemorrhage among patients undergoing tonsillectomy.

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