Abstract: Objective:To investigate the influence of the coblation tonsillectomy and conventional dissection tonsillectomy on children with obstructive sleep apnea syndrome.
Methods:A total of 146 children with obstructive sleep apnea syndrome were randomly divided into two groups: the observation group(n=76) and the control group(n=70). All patients underwent tonsillectomy: conventional dissection for control group and coblation for observation group. Children with adenoid hypertrophy in both groups were treated with Plasma ablation. The above operation was performed by the same operator. The time required and the amount of bleeding during operation were compared. Compare the postoperative sore throat, the time for the tunica to completely come off and the improvement in quality of life of the two groups before and after operation. Compare the sore throat and the time for the tunica to come off after the tonsillectomy with or without adenoid hypertrophy between the two groups.
Results:The observation group had a shorter operative time than the control group, and the average amount of introoperative bleeding （4.3±2.8）mL was less than that of the control group（P<0.05）.The observation group had a milder sore throat at 1 day after operation than control group. At 4 days after operation, the children with tonsillectomy had a milder sore throat than those with adenoid hypertrophy, there was statistically significant difference between the two groups(P<0.05). The time for the tunica to completely off in observation group was significantly longer than that in the control，and there was statistical difference(P<0.05). There was no significant difference in the improvement in postoperative quality of life.
Conclusion:Compared with conventional tonsillectomy, coblation tonsillectomy has shorter operation time, less intraoperative bleeding and milder symptoms of early postoperative pharynx discomfort, which has obvious advantages in dealing with complex tonsillectomy.

Key words: Obstructive sleep apnea syndrome, Coblation, Tonsillectomy, Children