Laryngeal Mask Airways

This study aims to compare two commonly used airway devices (I-gel and Air-Q) in children aged 1-10 years undergoing general anesthesia for surgery. These devices help doctors keep the airway open and support breathing during the operation. The study will evaluate how well each device works, how easy they are to place, and whether they cause air to enter the stomach. Ultrasound will be used to safely check the position of the device and detect any air in the stomach. The results of this study may help improve the safety and effectiveness of airway management in children during anesthesia.

The goal of this single-arm intervention trial is to learn whether using a supraglottic airway (SA) as the primary interface for positive pressure ventilation (PPV) is feasible during delivery room resuscitation of premature infants. This study will be conducted in premature infants born between 29 0/7 and 33 6/7 weeks' gestation who require PPV at birth. The main question it aims to answer is: Is it feasible to use a supraglottic airway as the primary interface to provide effective PPV during delivery room resuscitation in 29 0/7 to 33 6/7 weeks' gestation premature infants? Participants will (1)Be screened prenatally and have informed consent obtained from the birth parent prior to delivery; (2)Be rescreened for eligibility on the day of delivery before receiving the study intervention; (3)Receive PPV using a supraglottic airway as the primary ventilation interface if resuscitation is required at birth; and (4)Have clinical and procedural data collected during delivery room resuscitation and for up to 24 hours after birth.

Currently, research on laryngeal mask airway (LMA) has been continuously deepened both domestically and internationally, which has greatly promoted the optimization process of clinical application and related management strategies. Numerous domestic and foreign research findings have consistently emphasized the key role of LMA cuff pressure monitoring in reducing postoperative complications, especially in alleviating sore throat and dysphagia. Foreign studies have extensively covered the research and development innovation of LMA devices, as well as comprehensive comparative analyses with other airway management methods such as endotracheal intubation, providing rich perspectives for expanding the application of LMA and improving its application effects. In contrast, domestic studies have distinct pertinence, focusing on application exploration in specific populations and clinical practice scenarios, and have provided important evidence for the safe and effective use of LMA in specific groups through in-depth research. However, it is undeniable that there are obvious deficiencies in both domestic and foreign research regarding the application of continuous monitoring and progressive regulation of LMA cuff pressure in elderly patients-a crucial field. Due to the natural decline of physiological functions, elderly patients face an increased risk of complications such as pulmonary and extrapulmonary complications, as well as pharyngolaryngeal complications, when using LMA during the perioperative period. Therefore, it is particularly urgent to carry out continuous pressure monitoring and progressive regulation of LMA cuff pressure, and to further explore the optimal range of LMA cuff pressure. This study will not only fill the current research gap but also provide solid support for the safe and efficient airway management of elderly patients during the perioperative period.

This is a hybrid type 3 effectiveness-implementation parallel cluster randomized superiority trial designed to compare two strategies to promote early supraglottic airway (SA) rescue during neonatal resuscitation, with a focus on implementation outcomes.

This prospective, randomized, double-blind clinical study aims to evaluate the insertion success of two supraglottic airway devices, the classic Laryngeal Mask Airway (LMA) and the I-gel, in different head and neck positions in elderly patients undergoing elective urological surgery under general anesthesia. A total of 120 patients aged over 75 years with ASA physical status I-III will be randomly assigned to one of four groups: standard position with I-gel, right lateral rotation with I-gel, standard position with classic LMA, and right lateral rotation with classic LMA. The study will compare insertion time, ease and success of placement, number of attempts, hemodynamic responses, oropharyngeal leak pressures, fiberoptic scores, and airway-related complications. The findings aim to provide clinical guidance on the optimal use of supraglottic airway devices in geriatric patients in various head positions.

This clinical study aims to investigate the effects of breathing tubes, which we use to connect children aged 1-11 to a respiratory device under general anesthesia in the operating room, on intracranial pressure after they are inserted. No changes will be made to routine anesthesia practices for this purpose, and eye examinations will be performed with an USG device. This study has no undesirable effects or risks. This study does not include any invasive procedures. You have the right to refuse to participate in the study. You have the right to withdraw from the study at any time. If you decide not to participate in the study for any reason, there will be no disruption to your treatment. You will not be liable for any financial loss if you participate in the study, and you will not be paid. Your identity will be kept confidential if you participate in the study.