Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA. Department of Otolaryngology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA.
The Annals of otology, rhinology, and laryngology. 2021;:34894211045264
OBJECTIVE There is controversy regarding the efficacy and safety of tranexamic acid (TXA) in reducing tonsillectomy-related hemorrhage. We conducted a systematic review and meta-analysis to evaluate the prophylactic role of TXA in tonsillectomy. METHODS We searched 6 databases to identify studies that directly compare the effect of TXA versus controls in tonsillectomy patients. Standardized mean difference was applied to summate
the findings across the studies. Dichotomous data were expressed as relative risk. RESULTS Ten studies representing a total of 111 898 patients were included. The pooled results showed a significant reduction of intraoperative blood loss by 39.02 ml (SMD = -1.05, 95% CI: -1.91 to -0.20, P = .016) and the rate of post-tonsillectomy hemorrhage (RR = 0.42, 95% CI: 0.28 to 0.65, P < .0001), with no significant difference in reduction of further intervention risk (RR = 0.78, 95% CI: 0.45 to 1.35, P = .373). CONCLUSIONS Overall, this study indicates that TXA may reduce blood loss and frequency of post-operative hemorrhage associated with tonsillectomy. Further large, high-quality clinical trials are still needed to explore TXA's effect on post-tonsillectomy hemorrhage and the safety of its use.