Efficacy of pterygopalatine fossa injection with local anesthetic agent and adrenaline in reduction of intra-operative bleeding during endoscopic sinus surgery

Abstract

Background: This study aimed to assess the effect of pterygopalatine fossa injection via greater palatine canal with xylocaine and adrenaline on intra-operative surgical field bleeding and overall blood loss during FESS. Methods: We are doing this randomized blinded study on 60 patients who underwent FESS. Infiltration with 2 ml of xylocaine 2% with 1:100,000 adrenaline was slowly injected on one side and the surgeon was asked to assess the surgical field using a Boezaart scale. Results: Operative time is significantly less in injected cases than the other cases with a P value < 0.001. blood loss in injected side was significantly less than Non-injected side with a P value < 0.001. Conclusion: There was a significant decrease in blood loss, duration of surgery, and improvement in visual field using Boezaart score in injection group (cases) who underwent pterygopalatine fossa injection of xylocaine/adrenaline compared to the other non-injected group.