期刊
AGING CLINICAL AND EXPERIMENTAL RESEARCH
卷 33, 期 1, 页码 165-173出版社
SPRINGER
DOI: 10.1007/s40520-020-01522-2
关键词
Swallowing; Swallowing disorders; Deglutition disorders; Swallowing difficulties; Autonomic nervous system; Peripheral nerves; Older adults
资金
- Intramural Research Program of the NIH, National Institute on Aging
- National Institute on Aging (NIA) [N01-AG-6-2101, N01-AG-6-2103, N01-AG-6-2106]
- NIA [R01-AG028050]
- NINR [R01-NR012459]
In older adults, slow motor nerve conduction velocity and impairments in sensorimotor peripheral nerve function are associated with a higher likelihood of swallowing difficulties, while other nerve impairments are not related to swallowing impairment.
Background The purpose of this study was to examine whether impairments in sensorimotor peripheral nerve function are associated with a higher likelihood of swallowing impairment in older adults. Methods Health, Aging and Body Composition participants (n = 607, age = 75.8 +/- 2.7 years, 55.8% women, 32.3% black) underwent peripheral nerve testing at Year 4 and 11 with swallowing difficulty assessed at Year 4 and 15. Nerve conduction amplitude and velocity were measured at the peroneal motor nerve. Sensory nerve function was assessed with the vibration detection threshold and monofilament (1.4-g/10-g) testing at the big toe. Symptoms of lower extremity peripheral neuropathy and difficulty swallowing were collected by self-report. Data analysis was performed using a hierarchical approach. Odds ratios (ORs) were estimated using non-conditional logistic regression. Results At Year 15 108 (17.8%) participants had swallowing impairments. In fully adjusted models, the peripheral nerve impairments associated with swallowing impairment were numbness (OR 4.67; 95%CI 2.24-9.75) and poor motor nerve conduction velocity (OR 2.26; 95%CI 1.08-4.70). Other peripheral nerve impairments were not related to swallowing. Conclusions The association between slow motor nerve conduction velocity and numbness and a higher likelihood of swallowing difficulties a decade later in our prospective study identifies an important area for further investigation in older adults.
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