Effect of Different Head Positions During Endotracheal Intubation on Postoperative Sore Throat

Effect of Different Head Positions During General Anesthesia Endotracheal Intubation on Postoperative Sore Throat

The goal of this [ randomized clinical trial] is to [effect of different head positions on the incidence of postoperative sore throat ] in [patients with endotracheal intubation ]. The main question it aims to answer is: the rate of postoperative sore throat will be reduced or not with the patients' head position changed during intubation.

Objective: To investigate the effect of tracheal intubation in different head positions on the incidence of pharyngeal pain 1, 6 and 24h after operation;Effect of tracheal intubation in different head positions on the incidence of hoarseness 1, 6 and 24h after operation

Inclusion Criteria:

1. Patients undergoing endotracheal intubation abdominal or lower extremity surgery under general anesthesia
2. age 18~65 years old,
3. ASA grade I or II

Exclusion Criteria:

1. patients with pre-existing sore throat or hoarseness before anesthesia;
2. patients with cervical spine disease;
3. patients with upper respiratory infection or a history of tracheostomy;
4. Mallampati score ≥ 3;
5. participation in other clinical trials within the past three months.