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Table 2 The migrations of rotation of the distal end of endotracheal tube (ETT)

From: The difference in rotation angle of the distal endotracheal tube through nasal approach

 

6.5 group

7.0 group

7.5 group

P value

The migrations at right rotation at an angle of 90° (angle °)

47.8 ± 1.5

45.5 ± 1.0

39.9 ± 1.0

P = 0.32

The migrations at right rotation at an angle of 180° (angle °)

166.2 ± 2.5

145.7 ± 2.2

115.1 ± 2.0

P < 0.05

The migrations at left rotation at an angle of 90° (angle °)

46.9 ± 1.7

47.3 ± 0.8

39.0 ± 0.7

P = 0.26

The migrations at left rotation at an angle of 180° (angle °)

160.1 ± 3.2

144.8 ± 1.8

105.8 ± 1.7

P < 0.05

  1. Each group was compared using analysis of variance (ANOVA) with Steel-Dwass test or Student t-test. Values are means ± standard deviation. The significant level was set at less than 5%.
  2. Rotated right and left by 180° were significantly different among 3 groups (p < 0.05), although rotated right and left by 90° were not significantly different (p > 0.05).
  3. All rotation angles in the distal end of ETT were significantly less than those of the proximal end of fiberoptic scope and the ETT (p < 0.05).
  4. No significant difference was observed left and right rotation in each group (p > 0.05).
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BMC Anesthesiology

ISSN: 1471-2253

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