Abstract: Objective　To explore the potential benefits of partial tonsillectomy in the treatment of children with obstructive sleep apnea hypopnea syndrome (OSAHS).　Methods　From August 2016 to January 2019, 138 patients of tonsil hypertrophy combined with adenoid hypertrophy were treated with partial tonsillectomy(TT group, 69 cases) and total tonsillectomy (TE group, 69 cases). The pain index (PI), intraoperative blood loss (IBL), time of operation (TO) ，the number of  postoperative bleeding people (POB) , number of postoperative fever people (PF),  number of upper respiratory infections people within 1 year after operation  (URIs), hospital-length of stay (HLOS), apnea hyponea index  within 2 months after surgery and the amount of time taken to resume a “normal” diet (POFT) between the two groups were compared. 　Results　In patients of the TE group, the average IBL was significantly more than that of the TT group，and the TO was also extended accordingly, while postoperative fever is rare. Due to the more frequently use of bipolar electrocoagulation, the PI of the TE group was also significantly higher than that in the TT group [(5.9 ±0.5) vs (3.1±0.4)].  The PF in the TT group was significantly more than that in the TE group, while the HLOS in the TT group was shorter than that in the TE group [(4.8±2.3) d vs (6.4±1.8) d]. In the TT group, the amount of time taken to resume a “normal” diet was slightly shorter than that in the TE group, but apnea hyponea index  of both groups was significantly lower than that before operation.　Conclusions　The partial tonsillectomy with the advantage of less IBL, low chance of intraoperative bleeding, remission of obstructive sleep apner hypopnea for children, is worth to promote in the clinical application.  

Key words: Tonsillitis, 　Tonsillectomy, 　Tonsillotomy, 　 Sleep apnea