Functional endoscopic sinus surgery (FESS) is a minimally invasive procedure that is used in many inflammatory and infectious sinus diseases. Acute postoperative pain can lead to adverse consequences and good postoperative treatment of pain is essential. There is no agreement on a single protocol to treat pain after endoscopic sinus surgeries, and the usually used analgesics have some side effects that hinder their use. Current evidence is insufficient for routine clinical use of the sphenopalatine ganglion block for Functional endoscopic sinus surgery and the efficacy of sphenopalatine ganglion block for pain control after functional endoscopic sinus surgery remains controversial. This study aims to explore the influence of sphenopalatine ganglion block on pain intensity after functional endoscopic sinus surgery by comparing two groups, a group receiving the block with Bupivacaine injection, versus saline injection in the other group.
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Mean Visual Analogue Scale (VAS) pain score over the first 24 hours postoperatively.
Timeframe: in the PACU, at 2, 6, 12, and 24 hours after surgery