Clinical Research Directory

Ultrasonographic Subglottic Airway Measurements and Postoperative Respiratory Events in Young Children

This study aims to better understand airway-related respiratory events that may occur in children under three years of age undergoing general anesthesia with a laryngeal mask airway (LMA). As part of the study, ultrasonographic measurements of the subglottic airway will be performed at different time points during anesthesia using a non-invasive ultrasound device. Changes in these measurements will be evaluated in relation to intervention-requiring upper-airway events occurring during anesthesia, LMA removal, or early recovery. The results may contribute to a better understanding of airway-related factors associated with respiratory events in young children undergoing anesthesia with an LMA.

Inhaling Penehyclidine to Prevent Perioperative Respiratory Adverse Events in Children at Risk Undergoing Sevoflurane Anesthesia

This randomized controlled study is to evaluate the effectiveness of inhaling penehyclidine hydrochloride in reducing perioperative respiratory adverse events in children at risk undergoing minor elective surgery.

PRAE and Asymptomatic and Symptomatic URI Patients

The objective of this study is to determine the prevalence of asymptomatic viral carriers among healthy surgical patients and to describe the demographic and clinical characteristics of these patients. The secondary objective is to compare the incidence of perioperative respiratory adverse events (PRAE) between virus positive patients with and without upper respiratory infection (URI) symptoms. The secondary objective would aim to enroll patients who report recent URI symptoms.

Nasal Decongestant to Reduce Perioperative Adverse Events in Children With Upper Respiratory Track Infections Having Anesthesia.

The goal of this multicentre, double-blind, randomised controlled trial study is to learn if the use of a nasal spray to open the nasal passages and increase airflow before surgery can reduce the occurrence of perioperative respiratory adverse events in children with upper respiratory tract infection who are undergoing anesthesia. The main questions it aims to answer are: * Does use of a nasal decongestant (Oxymetazoline 0.05%) reduce perioperative respiratory adverse events during emergence (when waking up from anesthesia) or in the post-anesthesia care unit in children. * Is it easy and acceptable to doctors, children and parents to use the nasal decongestant treatment? Researchers will compare the nasal decongestant to a placebo (a look-alike substance that contains no drug) to see if it works to reduce perioperative respiratory adverse effects. Participants will: * Take a nasal decongestant or a placebo prior to surgery (just before anaesthesia is given) * Be monitored during and after surgery in the post-anaesthesia care unit for any perioperative respiratory adverse events. * Be asked about how acceptable they found the treatment.

Lateral Positioning for Extubation After Adenotonsillectomy

The postoperative recovery period following general anesthesia has been associated with a 30%-50% incidence of postoperative respiratory adverse events (PRAEs) in pediatric populations, including laryngospasm, airway obstruction, and hypoxemia. Despite the limited effects of existing pharmacological and operative interventions, positional optimization (e.g., lateral or semirecumbent position) may play a potential role by decreasing airway resistance and improving oxygenation. However, evidence-based evidence for its use in pediatric populations is still lacking, necessitating the urgent need for randomized controlled trials.

Risk Factors and Risk Grading Prediction of Perioperative Respiratory Adverse Events in Children

to explore the risk factors of perioperative respiratory adverse events in children, and to establish a risk prediction model of perioperative respiratory adverse events in children