Aging-related geniohyoid muscle atrophy is related to aspiration status in healthy older adults

Age-related muscle weakness due to atrophy and fatty infiltration in orofacial muscles may be related to swallowing deficits in older adults. An important component of safe swallowing is the geniohyoid (GH) muscle, which helps elevate and stabilize the hyoid bone, thus protecting the airway. This st...

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Vydáno v:The journals of gerontology. Series A, Biological sciences and medical sciences Ročník 68; číslo 7; s. 853
Hlavní autoři: Feng, Xin, Todd, Tee, Lintzenich, Catherine R, Ding, Jingzhong, Carr, Jeffery J, Ge, Yaorong, Browne, James D, Kritchevsky, Stephen B, Butler, Susan G
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States 01.07.2013
Témata:
Adult
Aged
Aged, 80 and over
Aging
Deglutition
Deglutition Disorders - diagnostic imaging
Deglutition Disorders - etiology
Female
Head - diagnostic imaging
Humans
Male
Muscular Atrophy
Pharyngeal Muscles - diagnostic imaging
Pharyngeal Muscles - pathology
Radiography
Retrospective Studies
Velopharyngeal Sphincter - diagnostic imaging
Atrophy
Aspiration
Geniohyoid muscle
Swallow
Fatty infiltration
Older adults
CT scans
ISSN:1758-535X, 1758-535X
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Popis
Shrnutí:Age-related muscle weakness due to atrophy and fatty infiltration in orofacial muscles may be related to swallowing deficits in older adults. An important component of safe swallowing is the geniohyoid (GH) muscle, which helps elevate and stabilize the hyoid bone, thus protecting the airway. This study aimed to explore whether aging and aspiration in older adults were related to GH muscle atrophy and fatty infiltration. Eighty computed tomography scans of the head and neck from 40 healthy older (average age 78 years) and 40 younger adults (average age 32 years) were analyzed. Twenty aspirators and 20 nonaspirators from the 40 older adults had been identified previously. Two-dimensional views in the sagittal and coronal planes were used to measure the GH cross-sectional area and fatty infiltration. GH cross-sectional area was larger in men than in women (p < .05). Decreased cross-sectional area was associated with aging (p < .05), and cross-sectional area was significantly smaller in aspirators compared with nonaspirators, but only among the older men (p < .01). Increasing fatty infiltration was associated with aging in the middle (p < .05) and posterior (p < .01) portions of the GH muscle. There was no significant difference in fatty infiltration of the GH muscle among aspirators and nonaspirators. GH muscle atrophy was associated with aging and aspiration. Fatty infiltration in the GH muscle was increased with aging but not related to aspiration status. These findings suggest that GH muscle atrophy may be a component of decreased swallowing safety and aspiration in older adults and warrants further investigation.
Bibliografie:ObjectType-Article-2
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ISSN:1758-535X
1758-535X
DOI:10.1093/gerona/gls225