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Impact of obstructive apnea syndrome on upper airway respiratory muscles
Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Clinical Neurophysiology. Östergötlands Läns Landsting, Reconstruction Centre, Department of Neurophysiology UHL.
2005 (English)In: Respiratory Physiology & Neurobiology, ISSN 1569-9048, E-ISSN 1878-1519, Vol. 147, no 2-3 SPEC. ISS., 263-272 p.Article in journal (Refereed) Published
Abstract [en]

This article reviews studies of upper airway muscles in humans, with emphasis on muscle fiber structural and electrophysiological changes observed in patients with obstructive sleep apnea syndrome (OSAS). The concept of OSAS as a progressive disease is discussed and also possible causes. These include local nervous lesions in the upper airway, both motor and sensory. Previous muscle biopsy studies have given evidence for motor neuron lesions such as, e.g., the phenomenon of type grouping in histological sections. New data obtained with concentric needle EMG recordings from the palatopharyngeus muscles are also presented. In 10/12 OSAS patients there were typical findings indicating motor neuropathy (reduced EMG activity at maximal voluntary effort, long and polyphasic motor-unit potentials and, in two cases, spontaneous denervation activity), whereas such findings were only present in 3/15 patients with habitual snoring. This supports the hypothesis that progression from habitual snoring to the clinical disease of OSAS could be attributed to peripheral neurogenic lesions. © 2005 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2005. Vol. 147, no 2-3 SPEC. ISS., 263-272 p.
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-30124DOI: 10.1016/j.resp.2005.06.012Local ID: 15603OAI: oai:DiVA.org:liu-30124DiVA: diva2:250945
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2017-12-13

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Svanborg, Eva

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