Predicting difficult intubation: a multivariable analysis.

Purpose: To develop a clinically useful and valid model for predicting difficult laryngoscopic tracheal intubation in patients with seemingly normal airways by adhering to the principles of multivariable model development.

Methods: This was an observational study performed at a tertiary-care teaching hospital. Preoperatively, 444 randomly selected patients requiring tracheal intubation for elective surgery were assessed.

Inter-observer reliability of ten tests used for predicting difficult tracheal intubation.

Purpose: To determine inter-observer reliability of ten preoperative airway assessment tests used for predicting difficult tracheal intubation.

Method: We prospectively assessed 59 patients undergoing elective surgery requiring tracheal intubation at a large metropolitan teaching hospital. Two experienced observers independently conducted the airway assessment tests on the same group of patients.