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Table 2 Airway test parameters

From: Evaluation of different airway tests to determine difficult intubation in apparently normal adult patients undergoing surgical procedures

 

Females

(n = 92)

Males

(n = 68)

All

(n = 160)

MMT-TP

 I and II

79 (85.9%)

59 (86.8%)

138 (86.25%)

 III and IV

13 (14.1%)

9 (13.2%)

22 (13.75%)

MMT-NTP

 I and II

68 (73.9%)

51 (75.0%)

119 (74.4%)

 III and IV

24 (26.1%)

17 (25.0%)

41 (25.6%)

Mandibular protrusion test

 Grades A and B

81 (88.0%)

65 (95.6%)

146 (91.25%)

 Grade C

11 (12.0%)

3 (4.4%)

14 (8.75%)

Inter-incisor gap

4.57 ± 0.78

4.64 ± 0.67

4.60 ± 0.73

Thyromental distance, cm

6.98 ± 1.55

7.27 ± 1.39

7.1 ± 1.49

Sternomental distance, cm

14.32 ± 2.72

15.01 ± 2.82

14.61 ± 2.77

  1. Data are given as mean ± standard deviation, or numbers (percentages). MMT-TP, modified Mallampati test with tongue protrusion; MMT-NTP, modified Mallampati test without tongue protrusion. Grade A: lower incisors can be brought anterior to the upper incisors. Grade B: lower incisors can only be protruded edge-to-edge with upper incisors. Grade C: lower incisors cannot be protruded edge-to-edge with upper incisors
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Patient Safety in Surgery

ISSN: 1754-9493