Adenotonsillar Hypertrophy

This study aims to evaluate the effect of Conox (qCON/qNOX)-guided anesthesia on intraoperative anesthetic drug consumption and postoperative outcomes in pediatric patients undergoing adenotonsillectomy. Conox is a non-invasive EEG-based monitoring system that provides indices of both hypnosis and nociception. In this randomized controlled trial, children aged 3-12 years will be assigned to either a Conox-guided anesthesia group or a standard monitoring group. The primary outcome of the study is total intraoperative opioid consumption, assessed from anesthesia induction to the end of surgery. Secondary outcomes include emergence time, extubation time, postoperative agitation, pain scores, and correlation between qCON/qNOX values and hemodynamic parameters.

The goal of this clinical trial is to assess whether preoperative anesthesia teleconsultation is at least equivalent to in-person consultation in preventing perioperative respiratory adverse events (such temporary reduction in oxygen levels in the blood) in the operating room and in the first 24 hours after the surgery in pediatric adenotonsillectomy. Researchers will compare the teleconsultation to in-person consultation to see if there is a difference in the frequency of respiratory adverse events in the operating room and during the first 24 hours after adenotonsillectomy. Participants will: \- undergo a traditional in-person anesthesiology consultation scheduled at the hospital or a online preoperative anesthesiology teleconsultation.

The goal of this clinical trial is to learn the effects of remimazolam for total intravenous anesthesia on the neurodevelopment of children aged 3-6 years who underwent tonsil/adenoid removal surgery after general anesthesia when compared with propofol. It will also learn about the safety of remimazolam used for children. The main questions it aims to answer are: * Does remimazolam improve the postoperative neurodevelopmental outcomes of the children after general anesthesia compared with propofol? * What medical problems do participants have when receive remimazolam for general anesthesia? Researchers will compare remimazolam to propofol to see if remimazolam improve the postoperative neurodevelopmental outcomes of the children after general anesthesia. Participants will: * Receive remimazolam or propofol for general anesthesia induction and maintenance * At 1-3 years after the surgery, the Wechsler Preschool and Primary Scale of Intelligence - Fourth Edition was used for face-to-face assessment of the children's neurodevelopmental status. * Use scales such as BRIEF-P and CBCL to conduct face-to-face assessments of the patient's cognitive functions in other areas.

This randomized controlled trial aims to evaluate the effect of tonsillectomy diet education on postoperative bleeding and pain in children undergoing adenotonsillectomy. Seventy-six pediatric patients will be randomly assigned to either an intervention group, which will receive specific diet education prior to surgery, or a control group receiving standard care. Bleeding and pain will be assessed at 4, 8, and 24 hours, and on the 7th day after surgery using a specialized follow-up form and the Wong-Baker Faces Pain Rating Scale. The study hypothesizes that diet education will reduce postoperative bleeding and pain, improving recovery and quality of life in children.

Myofunctional therapy has been shown to be effectively reduce symptoms of paediatric obstructive sleep apnea, usually performed after adenotonsillectomy. This study aims to evaluate the effectiveness of Passive Oral Myofunctional Reeducation (using a flexible oral appliance) compared to nasal hygiene alone (control group), in a population of children scheduled for adenotonsillectomy.