Table 2.

The reasons for failed intubation.

	C-MAC	Direct laryngoscope	P value
Inability to visualize cords	3 (4%)	16 (23, 1%)	0.002
Failure to direct the ET tube	6 (8%)	8 (10.7%)	0.83
ET tube could not be passed between the vocal cords	2 (2.7%)	6 (8%)	0.36
Esophageal intubation	0 (0%)	7 (9.3%)	0.013
Secretions	7 (9.3%)	11 (14.7%)	0.26
Switch to an other airway device	6 (8%)	3 (4%)	0.25
Switch to an other operator	8 (10.7%)	20 (26.7%)	0.013