Effectiveness of Facial Mask NIV in Adults Under General Anesthesia: Two-Hand C-E vs V-E Techniques

"The V-E maneuver is achieved by placing the thumbs and thenar eminence of each hand on the sides of the mask, creating a V shape, while the rest of the fingers perform a jaw thrust described as an E shape. This will be performed after anesthetic induction when the patient is unconscious and apneic. The C-E maneuver is achieved by placing the thumb and index finger of each hand on the mask in a C shape, while the third, fourth, and fifth fingers of both hands perform a jaw thrust towards the mask in an E shape. This will also be performed after anesthetic induction when the patient is unconscious and apneic."

"The C-E maneuver is achieved by placing the thumb and index finger of each hand on the mask in a C shape, while the third, fourth, and fifth fingers of both hands perform a jaw thrust towards the mask in an E shape. This will also be performed after anesthetic induction when the patient is unconscious and apneic."