Functional endoscopic sinus surgery (FESS) is a minimally invasive, effective surgical technique that is commonly used to treat chronic rhino sinusitis and nasal polyposis.~Intra-operative bleeding obscures the surgical view and increases the likelihood of iatrogenic complications. There are many factors that can affect the amount of bleeding experienced during surgery including both patient and surgical factors. These include severe forms of chronic sinusitis with nasal polyposis which is associated with increased vascularity, use of anticoagulant therapy, bleeding disorders, active infection, vascular tumor on the surgical site and revision surgery may affect bleeding on surgical site.~Sphenopalatine ganglion (SPG) is the main sensory innervation to the nasal mucosa.~The Sphenopalatine ganglion block (SPGB) is one of the regional anesthetic techniques that were used effectively before removal of nasal packing and in patients undergoing endoscopic sinus surgery under general anaesthesia to control bleeding or for postoperative analgesia
This study aimed to show the effect of sphinopalatine ganglion blockade on surgical field, hemodynamics and postoperative pain in FEES operation.