Hyo-Mental Angle and Distance: An Important Adjunct in Airway Assessment of Adult Mucopolysaccharidosis

Background: Mucopolysaccharidosis (MPS) is a rare congenital lysosomal storage disorder with complex airways. High anterior larynx is assessed by thyromental distance (TMD) nasendoscopy. A simpler method to assess this hyoid bone is described. The distance between the central-hyoid and symphysis of...

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Autores principales: Chaitanya Gadepalli, Karolina M. Stepien, Govind Tol
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Lenguaje:EN
Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:016f709123ce44779099179817d7682d2021-11-11T17:33:53ZHyo-Mental Angle and Distance: An Important Adjunct in Airway Assessment of Adult Mucopolysaccharidosis10.3390/jcm102149242077-0383https://doaj.org/article/016f709123ce44779099179817d7682d2021-10-01T00:00:00Zhttps://www.mdpi.com/2077-0383/10/21/4924https://doaj.org/toc/2077-0383Background: Mucopolysaccharidosis (MPS) is a rare congenital lysosomal storage disorder with complex airways. High anterior larynx is assessed by thyromental distance (TMD) nasendoscopy. A simpler method to assess this hyoid bone is described. The distance between the central-hyoid and symphysis of the mandible (hyo-mental distance; HMD) and inclination of this line to the horizontal axis (hyo-mental angle; HMA) in neutrally positioned patients is investigated. Methods: HMA, HMD in MPS, and non-MPS were compared, and their correlation with height and weight were assessed. Results: 50 adult MPS patients (M = 32, F = 18, age range = 19–66 years; mean BMI = 26.8 kg/m<sup>2</sup>) of MPS I, II, III, IV, and VI were compared with 50 non-MPS (M = 25, F = 25; age range = 22–84 years; mean BMI = 26.5 kg/m<sup>2</sup>). Mean HMA in MPS was 25.72° (−10 to +50) versus 2.42° (−35 to +28) in non-MPS. Mean HMD was 46.5 (25.7–66) millimeters in MPS versus 41.8 (27–60.3) in non-MPS. HMA versus height and weight showed a moderate correlation (r = −0.4, <i>p</i> < 0.05) in MPS and no significant correlation (r < 0.4, <i>p</i> > 0.05) in non-MPS. HMD versus height and weight showed no correlation (r < 0.4, <i>p</i> > 0.05) in both groups. Conclusions: HMA seems more acute in MPS despite nearly the same HMD as non-MPS, signifying a high larynx, which may be missed by TMD.Chaitanya GadepalliKarolina M. StepienGovind TolMDPI AGarticlemucopolysaccharidosisairway managementradiologyhyoid bonechinintubationMedicineRENJournal of Clinical Medicine, Vol 10, Iss 4924, p 4924 (2021)
institution DOAJ
collection DOAJ
language EN
topic mucopolysaccharidosis
airway management
radiology
hyoid bone
chin
intubation
Medicine
R
spellingShingle mucopolysaccharidosis
airway management
radiology
hyoid bone
chin
intubation
Medicine
R
Chaitanya Gadepalli
Karolina M. Stepien
Govind Tol
Hyo-Mental Angle and Distance: An Important Adjunct in Airway Assessment of Adult Mucopolysaccharidosis
description Background: Mucopolysaccharidosis (MPS) is a rare congenital lysosomal storage disorder with complex airways. High anterior larynx is assessed by thyromental distance (TMD) nasendoscopy. A simpler method to assess this hyoid bone is described. The distance between the central-hyoid and symphysis of the mandible (hyo-mental distance; HMD) and inclination of this line to the horizontal axis (hyo-mental angle; HMA) in neutrally positioned patients is investigated. Methods: HMA, HMD in MPS, and non-MPS were compared, and their correlation with height and weight were assessed. Results: 50 adult MPS patients (M = 32, F = 18, age range = 19–66 years; mean BMI = 26.8 kg/m<sup>2</sup>) of MPS I, II, III, IV, and VI were compared with 50 non-MPS (M = 25, F = 25; age range = 22–84 years; mean BMI = 26.5 kg/m<sup>2</sup>). Mean HMA in MPS was 25.72° (−10 to +50) versus 2.42° (−35 to +28) in non-MPS. Mean HMD was 46.5 (25.7–66) millimeters in MPS versus 41.8 (27–60.3) in non-MPS. HMA versus height and weight showed a moderate correlation (r = −0.4, <i>p</i> < 0.05) in MPS and no significant correlation (r < 0.4, <i>p</i> > 0.05) in non-MPS. HMD versus height and weight showed no correlation (r < 0.4, <i>p</i> > 0.05) in both groups. Conclusions: HMA seems more acute in MPS despite nearly the same HMD as non-MPS, signifying a high larynx, which may be missed by TMD.
format article
author Chaitanya Gadepalli
Karolina M. Stepien
Govind Tol
author_facet Chaitanya Gadepalli
Karolina M. Stepien
Govind Tol
author_sort Chaitanya Gadepalli
title Hyo-Mental Angle and Distance: An Important Adjunct in Airway Assessment of Adult Mucopolysaccharidosis
title_short Hyo-Mental Angle and Distance: An Important Adjunct in Airway Assessment of Adult Mucopolysaccharidosis
title_full Hyo-Mental Angle and Distance: An Important Adjunct in Airway Assessment of Adult Mucopolysaccharidosis
title_fullStr Hyo-Mental Angle and Distance: An Important Adjunct in Airway Assessment of Adult Mucopolysaccharidosis
title_full_unstemmed Hyo-Mental Angle and Distance: An Important Adjunct in Airway Assessment of Adult Mucopolysaccharidosis
title_sort hyo-mental angle and distance: an important adjunct in airway assessment of adult mucopolysaccharidosis
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/016f709123ce44779099179817d7682d
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AT karolinamstepien hyomentalangleanddistanceanimportantadjunctinairwayassessmentofadultmucopolysaccharidosis
AT govindtol hyomentalangleanddistanceanimportantadjunctinairwayassessmentofadultmucopolysaccharidosis
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