Anesthesiology Research and Practice / 2011 / Article / Tab 1 / Clinical Study
Comparative Evaluation of the Sniffing Position with Simple Head Extension for Laryngoscopic View and Intubation Difficulty in Adults Undergoing Elective Surgery Table 1 Patient characteristics.
Sniffing position Simple extension
š
value(
š
=
2
7
5
) (
š
=
2
7
1
) Age (yr)
3
8
.
7
Ā±
1
3
.
1
3
6
.
1
Ā±
1
4
.
1
0.022 Sex ratio (Mā:āF) 80ā:ā195 94ā:ā177 0.161 Weight (kg)
5
4
.
7
Ā±
1
1
.
1
5
2
.
8
Ā±
8
.
5
0.022 Body mass index (kg/m2 )
2
1
.
5
Ā±
4
.
1
2
0
.
6
Ā±
3
.
3
0.005 Thyromental distance (cm)
7
.
1
Ā±
0
.
8
7
Ā±
0
.
8
0.118 Sternomental distance (cm)
1
5
Ā±
1
.
7
1
4
.
9
Ā±
1
.
6
0.705 Neck length (cm)
1
5
.
7
Ā±
1
.
6
1
5
.
7
Ā±
1
.
7
0.840 Predictors of difficult intubation Mouth opening <3ācm 0 (0) 0 (0) ā Modified Mallampati class3 I/II/III/IV 176/56/22/21 181/44/31/15 0.260 Thyromental distance <6.5ācm 37 (13.5) 45 (16.6) 0.303 Sternomental distance <12.5ācm 12 (4.4) 10 (3.7) 0.689 Neck movement <80Ā° 0 (0) 0 (0) ā Short neck 14 (5.1) 11 (4.1) 0.683 Receding mandible 3 (1.1) 1 (0.4) 0.624 Beard 4 (1.5) 7 (2.6) 0.380 Maxillary incisors 0.582 āLoose 4 (1.5) 4 (1.5) āMissing 10 (3.6) 7 (2.6) āProtruding 17 (6.2) 16 (5.9) āEdentulous 8 (2.9) 3 (1.1)
Values are mean Ā± SD or numbers (percent).
