Flow-Volume Loop: A Tool for Evaluating the Position of the Laryngeal Mask Airway Intraoperatively

Abstract

The flow-volume loop (FVL) is a valuable yet often underutilized tool for assessing the placement of the laryngeal mask airway (LMA) during surgery. It provides real-time graphical data on airway patency and ventilation. These cases examine the role of FVL in identifying LMA misplacement. Abnormal patterns, such as truncated expiratory curves and reduced peak flows, can indicate partial obstructions that might otherwise go unnoticed. By monitoring FVL, clinicians can quickly detect and correct misalignment, thereby enhancing patient safety and ventilator effectiveness during surgical procedures.