Abstract: Objective To explore the effect of low-temperature plasma adenoidectomy combined with bilateral tonsil regimen in the treatment of pediatric snoring and its influencing factors. 
Methods In total, 110 children with snoring were selected as the research subjects. According to the random number table method, they were divided into the control group and the observation group, with 55 cases in each group. The cure rate and total effective rate were observed, and the immunoglobulin A(IgA), immunoglobulin G(IgG), and immunoglobulin M(IgM) were compared before surgery, and at 1 and 6 months after surgery. The apnea hypopnea index(AHI), minimum blood oxygen saturation［LSa(O2)］ and pediatric sleep questionnaire(PSQ) scores before and at 7 d after surgery were assessed. 
Results The total effective rate and cure rate of the observation group were higher than those of the control group(P＜0.05). The duration of operation, intraoperative blood loss, duration of postoperative pain and symptom relief time in the observation group were shorter or less than those in the control group(P＜0.05). The levels of IgA, IgG, and IgM in both groups increased with time, which were higher in the observation group than in the control group at 1 month and 6 months after surgery(P＜0.05). There were statistically significant differences in the interaction between groups, time points and time points between groups with respect to IgA, IgG and IgM(P＜0.05). Simple effect LSD-t pairwise comparison showed that there was no significant difference in IgA, IgG, IgM, AHI, LSa(O2) and PSQ scores between two groups before surgery(P＞0.05); at 1 month and 6 months after surgery, IgA, IgG, and IgM in the observation group were higher than those in the control group(P＜0.05). At 7 d after surgery, the AHI of the observation group was lower than that of the control group, while the LSa(O2) and PSQ scores were higher than those of the control group(P＜0.05). There was no difference in gender, age, course of disease, weight, preoperative IgA, preoperative IgG, preoperative IgM, preoperative AHI, preoperative LSa(O2), and preoperative PSQ scores between the cured/markedly effective group and the effective/ineffective group(P＞0.05), while there was significant significance in comparison of surgical methods(P＜0.05). Logistic regression analysis showed that adenoidectomy with the power cutting system combined with conventional bilateral tonsillectomy was an independent risk factor affecting the therapeutic effect of pediatric snoring(P＜0.05). 
Conclusion Low-temperature plasma adenoidectomy combined with bilateral tonsillectomy is effective in the treatment of pediatric snoring. It not only has a little impact on the immune function, but also improves the ventilation function of the patient.

Key words: sleep apnea, obstructive, adenoidectomy, tonsillectomy