new glidoscope was tested on 401 patients

Four hundred and one patients who were scheduled for elective operation, were randomly assigned to be intubated by direct laryngoscopy using a Macintosh blade size 3rd (DL, n=196) or intubation using the video laryngoscope (VL, n=205). Prior to intubation all patients were given a similar regimen of induction of anesthesia. The patients were then intubated, using direct laryngoscopy or the VL, by a different anesthetist during which the larynx was inspected and given a laryngoscopy score. Time to intubate, failure rate, injuries, personnel pleasure and, aspiration rate were measured

Inclusion Criteria:

• elective operation who filled the consent

Exclusion Criteria:

• poor intubation
• emergency cases
• hemodynamic derangement