Comparison ropivacaine and bupivacaine in sphenopalatine ganglion block for postoperative analgesia after functional endoscopic sinus surgery : a randomized controlled trial

摘要

Objective: In this study the efficacy of sphenopalatine ganglion (SPG) block will be evaluated using bupivacaine or ropivacaine in adult patients undergoing functional endoscopic sinus surgery (FESS) under general anesthesia.Methods : Sixty adult patients undergoing FESS under general anesthesia has been randomized in three groups to receive bupivacaine, ropivacaine or normal saline in SPG block before surgery.Results : Time to recovery from anesthesia was significantly higher in patients who received normal saline than bupivacaine or ropivacaine. VAS scores were significantly lower in both bupivacaine and ropivacaine groups at all recorded time points when compared to saline group. Five patients in the bupivacaine group (25%) and six patients in the ropivacaine group (30%) required rescue analgesia whereas fifteen patients (75%) in the saline group required rescue analgesia.Conclusion : Preoperative SPG with either bupivacaine or ropivacaine is an effective method of postoperative analgesia after FESS in adult patients up to 8 hours postsurgery.