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Table 4 Intubation profiles in the overall intubation period

From: Comparison of C-MAC D-blade videolaryngoscope and McCoy laryngoscope efficacy for nasotracheal intubation in simulated cervical spinal injury: a prospective randomized comparative study

CharacteristicsGroup C
(n = 48)
Group M
(n = 47)
P value
VAS of facemask ventilation difficulty2.1 ± 1.62.6 ± 1.70.135
Cormack-Lehane grade (I/II/III/IV)25/16/7/04/19/16/8< 0.001
POGO scores (%)79.6 ± 20.650.6 ± 25.9< 0.001
NIDS  0.034
 0 (no difficulty)10 (20.8)2 (4.3) 
 1–5 (minor difficulty)38 (79.2)44 (93.6) 
 6–11 (moderated difficulty)0 (0)1 (2.1) 
  ≥ 12 (profound difficulty)0 (0)0 (0) 
Use of Magill’s forceps (Yes/No)27/21 (56.3/43.7)40/7 (85.1/14.9)0.002
Epistaxis (Yes/No)8/40 (16.7/83.3)5/42 (10.6/89.4)0.504
Hoarseness (Yes/No)0/48 (0/100)1/46 (2.1/97.9)0.310
VAS of sore throat5.0 (4.0–6.0)37.5 (34.0–39.8)0.911
  1. Values are median ± SD, median (interquartile range 25th–75th) or number (%)
  2. VAS visual analog scale, POGO percentage of glottic opening, NIDS Nasal intubation difficulty scale