Influencing factors on seal pressure of laryngeal mask

As an airway management tool, the seal performance of the laryngeal mask is crucial. The seal pressure of the laryngeal mask is a key indicator for evaluating the performance of the laryngeal mask. Appropriate seal pressure is of great clinical significance to ensure effective ventilation and avoid complications. This article reviews the factors that affect the seal pressure of the laryngeal mask, including structural design, material characteristics, inflation volume, insertion skill, airway pressure, and patients' individual characteristics. Understanding and optimizing the above factors can help anesthesiologists to better apply the laryngeal mask in clinical anesthesia, to reduce patient complications, and improve patient safety as well as comfort.