Treatment of difficult tracheal intubation in fifty-three patients

Objective: To investigate the style of difficult tracheal intubation.Methods: Fifty-three patients were classified two groups: Group A 35 cases in awaken intubation and group B 18 cases in induction of general anesthesial intubation.The style and time of tracheal intubation and maximum mean value of saturation of hemoglobin(SPO_2) of interruptal inspired oxygen with face mask ventilation were compared.Results:Compared with the two groups,Oral intubation under direct vision and blind digital intubation in group A(37.1% and 62.9%)were not significantly different from group B(33.3% and 66.7%)(P(0.05)).There was statistical significance(P0.05) in maximum mean value of SpO_2 in two groups.95 percent to 100 percent of SpO_2 was 65.7% in group A and 27.7% in groups B.Less than 90 percent of SpO_2 was 17.1% in group A and 50% in group B.The time was the shortest in combitube and retrogression tracheal intubation of five blind digital intubation.Conclutions: In patients with prediction of the difficult intubation should choose awaken intubation at first.The first principle is sure to oxygenate well and no hypoxia.External laryngeal manipulation is the fastest and easiest way to make larynx become visible for intubation.The retrogression tracheal intubation shoud be adopted in dangerous state.