Ultrasound assessment of larynx and trachea in the neonatal period – analysis of correlations and percentile charts Cover

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Ultrasound assessment of larynx and trachea in the neonatal period – analysis of correlations and percentile charts

Journal of Ultrasonography

Volume 25 (2025): Issue 103 (October 2025)

By: Łukasz Piotr Paprocki , Bartosz Migda and Renata Bokiniec

Open Access

|Dec 2025

Figures & Tables

Measurements of: A. laryngeal width (double-arrow line) – transversely from the outer borders of the thyroid cartilage at the level of the glottis; laryngeal depth (dashed line) – sagitally between the outer borders of the thyroid and annular cartilages; B. glottis width (double-arrow line) – between the medial borders of the arytenoid cartilages; C. subglottic width (double-arrow line) – transversely from the outer borders of the annular cartilage; subglottic depth (dashed line) – sagitally from the outer borders of the annular cartilage; the measurements are taken at the level of the arch of the annular cartilage. D. subglottic lumen width (double-arrow line) – transversely from the inner borders of the annular cartilage; subglottic lumen depth (dashed line) – sagitally medially from the inner borders of the annular cartilage; E. tracheal width (double-arrow line) – transversely from the outer borders of the tracheal cartilage; tracheal depth (dashed line) – sagitally from the outer border of the tracheal cartilage to the tracheal muscle membrane; F. tracheal lumen width (double-arrow line) – transversely from the inner borders of the tracheal cartilage; tracheal lumen depth (dashed line) – sagitally from the inner border of the tracheal cartilage to the tracheal muscle membrane

Centile charts illustrating the relationship between the size of the larynx and trachea and body weight in female newborns

Centile charts illustrating the relationship between the size of the larynx and trachea and body weight in male newborns

Centile chart illustrating the relationship between maximum glottic width and body weight in newborns

Correlations between ultrasonographic measurements of the larynx and trachea and body weight (A), body length (B), and gestational age (C)_ Correlation between maximum glottic width and body weight, combined for females and males (D)

	Female			Male
	n	r	p	n	r	p
A
Laryngeal width	147	0.25	<0.05	147	0.36	<0.05
Laryngeal depth	147	0.32	<0.05	147	0.46	<0.05
Subglottic width	146	0.37	<0.05	147	0.37	<0.05
Subglottic depth	146	0.25	<0.05	147	0.55	<0.05
Subglottic lumen width	146	0.26	<0.05	147	0.33	<0.05
Subglottic lumen depth	146	0.34	<0.05	147	0.34	<0.05
Tracheal width	145	0.25	<0.05	141	0.26	<0.05
Tracheal depth	145	0.17	<0.05	141	0.24	<0.05
Tracheal lumen width	145	0.27	<0.05	141	0.26	<0.05
Tracheal lumen depth	145	0.20	<0.05	141	0.20	<0.05
B
Laryngeal width	147	0.10	0.24	147	0.31	<0.05
Laryngeal depth	147	0.26	<0.05	147	0.34	<0.05
Subglottic width	146	0.26	<0.05	147	0.35	<0.05
Subglottic depth	146	0.21	<0.05	147	0.41	<0.05
Subglottic lumen width	146	0.30	<0.05	147	0.26	<0.05
Subglottic lumen depth	146	0.28	<0.05	147	0.27	<0.05
Tracheal width	145	0.28	<0.05	141	0.13	0.12
Tracheal depth	145	0.17	<0.05	141	0.06	0.49
Tracheal lumen width	145	0.27	<0.05	141	0.16	<0.05
Tracheal lumen depth	145	0.25	<0.05	141	0.04	0.67
C
Laryngeal width	146	0.05	0.53	147	0.32	<0.05
Laryngeal depth	146	0.28	<0.05	147	0.24	<0.05
Subglottic width	145	0.16	0.05	147	0.22	<0.05
Subglottic depth	145	0.15	0.08	147	0.35	<0.05
Subglottic lumen width	145	0.09	0.29	147	0.20	<0.05
Subglottic lumen depth	145	0.12	0.15	147	0.21	<0.05
Tracheal width	144	0.07	0.38	141	0.09	0.28
Tracheal depth	144	0.02	0.85	141	0.14	0.09
Tracheal lumen width	144	0.14	0.10	141	0.18	<0.05
Tracheal lumen depth	144	0.12	0.17	141	0.17	0.05
D
	Female + Male
	n		r		p
Maximum glottic width	289		0.11		0.06

DOI: https://doi.org/10.15557/jou.2025.0034 | Journal eISSN: 2451-070X | Journal ISSN: 2084-8404

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Language: English

Submitted on: Sep 16, 2025

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Accepted on: Dec 2, 2025

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Published on: Dec 31, 2025

Published by: MEDICAL COMMUNICATIONS Sp. z o.o.

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

Related subjects:

Basic medical science,

Basic medical science, other

© 2025 Łukasz Piotr Paprocki, Bartosz Migda, Renata Bokiniec, published by MEDICAL COMMUNICATIONS Sp. z o.o.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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