Fig 1.
CONSORT flow diagram.
Fig 2.
King Vision with non-channeled and channeled blades.
Table 1.
Data collection.
Fig 3.
Time steps of (A) differences in Time to view (B) differences in Time for place the TT (C) differences in overall intubation time; Data are given in Kaplan-Meier curve and median.
Fig 4.
(A) typical Macintosh-blade technique: blade tip placed in the vallecula (B) view from the monitor display using the channeled blade (★: epiglottic; ✪: ET leave the channeled; ✹: right arytenoid).