Fig. 1.

Thermal damage induced by the fiber-optic light. A A diagram illustrating thermal damage caused by the fiber-optic light. The thermal energy emitted from the illuminated end of the fiber-optic light burned the bottom of the electrosurgical safety holster in which the fiber-optic light was stored, subsequently igniting the surgical drape beneath the holster and leading to damage of the pilot balloon tubing. B The damaged holster and surgical drape caused by thermal damage from the fiber-optic light. An inset image highlights the damaged section of the electrosurgical safety holster. The arrowhead and arrow indicate the holes in the surgical drape and the holster, respectively. C The damaged pilot balloon tubing caused by thermal damage from the fiber-optic light. The upper panel shows the damaged pilot balloon tubing, and the lower panel provides a schematic representation of the damage. The pilot balloon tubing was partially severed in which the section proximal to the endotracheal tube cuff was burned and punctured, causing the cuff leak. Meanwhile, the section proximal to the pilot balloon had melted and occluded the lumen, resulting in a falsely normal cuff pressure reading followed by an elevated cuff pressure when a small amount of air was injected into the pilot balloon during troubleshooting