The Influence of Standardized Process Management of Laryngeal Mask Airway Placement Based on Pressure Monitoring on the Incidence of Adverse Reactions in Elderly Patients During the Perioperative Period

The laryngeal mask airway (LMA) is a supraglottic ventilation device designed according to human anatomy. It was developed in 1981 by Dr. Archie Boubrain in the United Kingdom to compensate for the deficiencies of tracheal intubation and mask ventilation. It has been widely used in clinical practice because of its simple operation, small airway stimulation, and hemodynamic stability. In 1990, LMA entered the Chinese market. In 1993, LMA was included in the American Society of Anesthesiologists guidelines for the emergency management of the difficult airway. In the past, tracheal intubation was the standard method of airway control during general anesthesia. In the past decade, the proportion of LMA ventilated general anesthesia has increased significantly in China and European and American countries. By 2022, the utilization rate of LMA in China climbed to 95.96%. With the continuous improvement and development of LMA, it can be used to establish safe airway management in special positions such as lateral position and prone position, long-term surgery and special site surgery. However, the wide application has also exposed some key problems. The lack of standardized process management of LMA placement may lead to improper placement, airway obstruction, laryngspasm, reflux, and aspiration during the application of LMA, which may cause a series of pulmonary and extrapulmonary complications. Studies have shown that many adverse events during LMA implantation may be related to LMA pressure monitoring. Inadequate pressure monitoring may lead to pressure imbalance, and improper pressure management may lead to poor coordination between LMA and pharynx. Coupled with the change in intraoperative position and postoperative transfer, the risk of postoperative sore throat and LMA displacement increases. Therefore, there is an urgent need for standardized process management, dynamic pressure monitoring and position adjustment during the use of LMA. The standardized management o