What are the advantages of video laryngoscopy in difficult airway management?

In the management of difficult airways, video laryngoscopy offers several advantages. Traditional laryngoscopy relies on the operator's experience and anatomical judgment, requiring direct visualization for tracheal intubation. However, for patients with abnormal anatomical structures (such as those with micrognathia, limited cervical spine mobility, or other conditions leading to difficult airways), the procedure can be highly challenging and prone to intubation failure or laryngeal injury. In contrast, video laryngoscopy leverages its visual capabilities to clearly display the three-dimensional structure of the larynx. Even when the patient's position is restricted or laryngeal exposure is difficult, key areas like the glottis can be clearly viewed on the display screen. Its adjustable-angle lens can be maneuvered into optimal positions, bypassing obstructive structures in the oral cavity, providing anesthesiologists with a broad and clear field of view. Additionally, video laryngoscopy allows for recording and playback of images, facilitating postoperative analysis and summary of the procedure. It also serves as a valuable tool for teaching demonstrations, helping novice anesthesiologists learn techniques for managing difficult airways. Furthermore, in emergencies such as respiratory arrest requiring rapid tracheal intubation, video laryngoscopy can expedite the procedure, improve success rates, and secure critical time for patient resuscitation.