Standard operating procedures for laryngeal mask during use

Operation method

1. The recommended method is for the patient to bend their neck position, fully deflate the inflatable bag, shape the cover and insert it downwards along the hard palate, with the right index finger to help push the tongue open. Applying water-based lubricant to the distal surface can reduce insertion resistance.

2. After inflating a small part of the laryngeal mask inflation bag, the mask face can be inserted downwards along the hard palate towards the head end. Once it reaches the throat, it can be rotated 180 ° and pushed downwards to meet resistance before inflation.

3. Disposable laryngeal mask can be inserted without suction. After inserting a laryngeal mask, perform positive pressure ventilation, observe the degree of chest undulation, auscultate whether the breathing sounds on both sides are symmetrical and clear, and auscultate whether there are air leakage murmurs in the anterior cervical area.

4. The timing for withdrawing the laryngeal mask is divided into deep anesthesia and shallow anesthesia for extubation. Deep anesthesia and extubation can avoid triggering airway reflexes and laryngeal spasms, but there is a possibility of aspiration and airway obstruction; Shallow anesthesia extubation can ensure the recovery of protective reflexes, but there is a risk of airway overreaction.

Using 2% Lidocaine gel to lubricate the laryngeal mask airway or intravenous administration of opioid Analgesic can reduce the airway reflex when awake.