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Figure 1. ; Preoperative pharyngeal fiberoptic view. Epiglottis is pressed over the larynx by the thyrolingual cyst (↑).

Tomoyasu Noguchi,

Noriko Miyazawa,

Nami Ooyama, and

Tatsuya Ichinohe

Figure 1.

Preoperative pharyngeal fiberoptic view. Epiglottis is pressed over the larynx by the thyrolingual cyst (↑).

Figure 3. ; The sagittal view of the oral cavity, pharynx and larynx of the patient The tongue and soft tissue extruding both upward and dorsally make the upper airway narrower. The white arrows indicate bulging tissues.

Figure 3.

The sagittal view of the oral cavity, pharynx and larynx of the patient

The tongue and soft tissue extruding both upward and dorsally make the upper airway narrower.

The white arrows indicate bulging tissues.

Figure 1. ; Computed tomography (CT) scan of the neck with contrast at time of admission. (A) Sagittal cut reveals a mass in the hypopharynx and piriform sinuses; note the limited airway space. (B) Axial cut at the level of the hyoid bone reveals a mass that is 1.4 × 0.5 cm in size. (C) Coronal cut revealing the mass intruding upon the midline of the larynx.

Regina A. E. Dowdy and

Bryant W. Cornelius

Figure 1.

Computed tomography (CT) scan of the neck with contrast at time of admission. (A) Sagittal cut reveals a mass in the hypopharynx and piriform sinuses; note the limited airway space. (B) Axial cut at the level of the hyoid bone reveals a mass that is 1.4 × 0.5 cm in size. (C) Coronal cut revealing the mass intruding upon the midline of the larynx.

Figure 1. ; A cephalometric analysis of oral and nasal airway length. We employed 4 landmarks for oral airway and 5 landmarks for nasal airway. These landmarks were smoothly connected by using the DICOM viewer.

Keiko Yao,

Kinuko Goto,

Akiko Nishimura,

Reina Shimazu,

Satoshi Tachikawa, and

Takehiko Iijima

Figure 1.

A cephalometric analysis of oral and nasal airway length. We employed 4 landmarks for oral airway and 5 landmarks for nasal airway. These landmarks were smoothly connected by using the DICOM viewer.

Figure 2. ; Correlation between patient height and oral tract length. A strong correlation between patient height and the length of the oral tract was confirmed (r = 0.691; p > .01). No significant difference was seen between separate plots for men and women.

Keiko Yao,

Kinuko Goto,

Akiko Nishimura,

Reina Shimazu,

Satoshi Tachikawa, and

Takehiko Iijima

Figure 2.

Correlation between patient height and oral tract length. A strong correlation between patient height and the length of the oral tract was confirmed (r = 0.691; p > .01). No significant difference was seen between separate plots for men and women.

Figure 3. ; Correlation between patient height and nasal tract length. A strong correlation between patient height and the length of the nasal tract was confirmed (r = 0.760; p > .01). No significant difference was seen between separate plots for men and women.

Keiko Yao,

Kinuko Goto,

Akiko Nishimura,

Reina Shimazu,

Satoshi Tachikawa, and

Takehiko Iijima

Figure 3.

Correlation between patient height and nasal tract length. A strong correlation between patient height and the length of the nasal tract was confirmed (r = 0.760; p > .01). No significant difference was seen between separate plots for men and women.

Figure 4. ; Bland-Altman plots for the bias between the estimated and measured values of oral tract length. A significant fixed bias was observed (p < .05).

Keiko Yao,

Kinuko Goto,

Akiko Nishimura,

Reina Shimazu,

Satoshi Tachikawa, and

Takehiko Iijima

Figure 4.

Bland-Altman plots for the bias between the estimated and measured values of oral tract length. A significant fixed bias was observed (p < .05).

Figure 5. ; Bland-Altman plots for the bias between the estimated and measured values of nasal tract length. No significant fixed bias or proportional bias was observed (p > .05).

Keiko Yao,

Kinuko Goto,

Akiko Nishimura,

Reina Shimazu,

Satoshi Tachikawa, and

Takehiko Iijima

Figure 5.

Bland-Altman plots for the bias between the estimated and measured values of nasal tract length. No significant fixed bias or proportional bias was observed (p > .05).

Figure 6. ; Intubation marker of the endotracheal tube. The distance to add to the airway length to help ensure appropriate tube depth (DM; distance between the distal edge of intubation guide mark and the tip).

Keiko Yao,

Kinuko Goto,

Akiko Nishimura,

Reina Shimazu,

Satoshi Tachikawa, and

Takehiko Iijima

Figure 6.

Intubation marker of the endotracheal tube. The distance to add to the airway length to help ensure appropriate tube depth (DM; distance between the distal edge of intubation guide mark and the tip).

A Formula for Estimating the Appropriate Tube Depth for Intubation

Keiko YaoDDS,

Kinuko GotoDDS, PhD,

Akiko NishimuraDDS, PhD,

Reina ShimazuDDS,

Satoshi TachikawaDDS, PhD, and

Takehiko IijimaDDS, PhD, DMSc

Article Category: Research Article

Volume/Issue: Volume 66: Issue 1

Online Publication Date: Jan 01, 2019

DOI: 10.2344/anpr-65-04-04

Page Range: 8 – 13

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