How effective is systemic tranexamic acid compared to a control in blood loss, operative time, and surgical field and incidence of postoperative emesis and thromboembolism in endoscopic sinus surgery (ESS)?
Bottom line: The systemic administration of tranexamic acid could decrease operative time and intraoperative blood loss, increasing the satisfaction of surgeons. It did not provoke intraoperative hemodynamic instability, postoperative emetic events, or coagulation profile abnormality.
Background: Because the nose and paranasal sinuses are highly vascularized, surgery there may cause significant bleeding, making identification of important anatomic landmarks and structures difficult, increasing intraoperative complication risks and prolonging operating time. Tranexamic acid can decrease intraoperative bleeding. Although it is usually well tolerated, nausea and vomiting are known common side effects, and hypotension has been observed during rapid intravenous administration.
Study design: Literature review of seven studies comprising 562 participants, comparing perioperative tranexamic acid administration (treatment group) with a placebo (control group).
Setting: PubMed, SCOPUS, Embase, the Web of Science, Google Scholar, and the Cochrane database; search results are from their inception to July 2018.
Synopsis: Outcomes of interest were intraoperative morbidities, including surgical time, operative bleeding, and hypotension; postoperative morbidities such as nausea and vomiting; and coagulation profiles. Operative time, intraoperative blood loss, and the surgical field score were statistically lower in the treatment group than in the control group. Surgeon satisfaction was statistically higher in the treatment group than in the control group. There was no significant difference between the groups in intraoperative blood pressure. The incidence of postoperative nausea and vomiting and thrombotic accident showed no significant differences between the groups. Platelet count, prothrombin time, and partial thromboplastin time showed no significant differences between the groups. In sensitivity analyses that evaluated the differences in the pooled estimates by repeating the meta-analyses with a different study omitted each time, all results were consistent with the outcomes previously found. Limitations included a lack of consideration of external factors such as polyps versus no polyps, revision versus primary, and usage of other hemostatic agents because the analysis was performed based on the statistical measurements of the figures.
Citation: Kim DH, Kim S, Kang H, Jin HJ, Hwang SH. Efficacy of tranexamic acid on operative bleeding in endoscopic sinus surgery: a meta-analysis and systematic review. Laryngoscope. 2019;129:800–807.