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Abstract
Given its role in the disease pathophysiology, inhibition of VEGF-mediated angiogenesis has received attention as a potential strategy to reduce epistaxis associated with hereditary hemorrhagic telangiectasia (HHT). This study evaluates the efficacy of a submucosal injection of bevacizumab, a VEGF-inhibitor, in reducing the severity of epistaxis and improving quality of life when given at the time of operative electrocautery.This randomized, double-blinded placebo-controlled trial was conducted at a single institution from 2014 to 2019. Patients scheduled to undergo operative bipolar electrocautery of nasal telangiectasias were randomized to receive a submucosal injection of saline or bevacizumab at time of surgery. Surveys to assess epistaxis severity and quality-of-life (QOL), including the Epistaxis Severity Score (ESS) and Short Form 12 (SF-12), were administered preoperatively and at 1, 2, 4, and 6 months postoperatively. The minimal clinically important difference (MCID) of the ESS instrument is reported to be 0.71.Of 39 patients enrolled, 37 (94.9%) completed the study. The saline group demonstrated reduced ESS versus baseline at 1 (-1.2, p = 0.01) and 4 (-1.2, p = 0.05) months post-procedure. The bevacizumab group demonstrated reduced ESS versus baseline at 1 (-2.3, p<0.001), 2 (-2.3, p<0.001), 4 (-2.0, p = 0.003), and 6 (-1.3, p = 0.05) months post-procedure. The additive benefit of bevacizumab over saline exceeded the MCID at 1, 2, and 4 months but the difference was not statistically significant.The addition of a single treatment of submucosal bevacizumab may be associated with additional clinically meaningful benefit for up to 4 months when compared to electrocautery alone. This article is protected by copyright. All rights reserved.
View details for DOI 10.1002/alr.22961
View details for PubMedID 34989143