• Respir Physiol Neurobiol · Feb 2011

    Analysis of the pharynx and the trachea by the acoustic reflection method in children: a pilot study.

    • Nicolas Leboulanger, Bruno Louis, Redouane Fodil, Pierre-Yves Boelle, Annick Clément, Eréa-Noel Garabedian, and Brigitte Fauroux.
    • AP-HP, Hôpital Armand Trousseau, Otolaryngology - Head and Neck Surgery Department, 75012 Paris, France.
    • Respir Physiol Neurobiol. 2011 Feb 15;175(2):228-33.

    AbstractThe acoustic reflection method (ARM) is based on the analysis of the reflection of acoustic waves. The aim of the study was to determine the feasibility of the ARM in healthy children, and the anthropometric parameters that were correlated with the minimum cross-sectional area (MCAv) of the upper airways. Fifty-nine children (age 2-18 years) participated to the study. The mean MCAv value were 1.47±0.15, 1.77±0.33, 1.80±0.23, 2.06±0.42, 2.19±0.37, and 2.22±0.29cm(2), in the 2-3, 4-6, 7-9, 10-12, 13-15, and 16-18 year age groups, respectively. The MCAv values correlated significantly with height, age, and weight, but in a stepwise multiple regression analysis, only height remained correlated with the MCAv (r=0.59, p<0.0001). The analysis of the upper airways by the ARM is feasible in children after 2 years of age and the MCAv values increase with height in childhood.Copyright © 2010 Elsevier B.V. All rights reserved.

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