[Prevention measures of postoperative hemorrhage in children day surgery of tonsils and adenoids].

To investigate the effect of preventive measures in reducing postoperative bleeding, which is made for children day surgery on tonsils and adenoids in our hospital, and to clarify its safety and feasibility. A retrospective analysis of 649 patients with children day surgery due to obstructive sleep apnea（OSA） caused by adenoid hypertrophy of tonsil was conducted. All of the patients were admitted to Shanghai Children's Hospital from February 2021 to April 2021. According to whether preventive measures were taken or not, they were divided into the control group and the observation group. The postoperative bleeding rate, bleeding time, and bleeding-related factors of the two groups were compared. There were 4 cases（1.22%） in the observation group and 12 cases（3.74%） in the control group, the postoperative bleeding rate of the observation group was lower than that of the control group（χ²=4.28, =0.039）. The postoperative bleeding in the observation group occurred（8.25±2.75） days after surgery while the control group（7.42±1.98） days, which shows no significant difference in postoperative bleeding time between the two groups（χ²=2.601, =0.321）. There was no case of postoperative infection in the observation group while 7 cases（58.3%） in the control group（χ²=7.658, =0.036）. For children with day surgery of tonsils and adenoids, appropriate optimization measures can be taken for hospital admission evaluation, infection prevention, postoperative observation, publicity and education, which can effectively reduce the incidence of postoperative complications and improve the treatment effect of day surgery.