Pharyngeal Pressure Variability During Volitional Swallowing Maneuvers.
Purpose: Within-individual pharyngeal swallowing pressure variability differs among pharyngeal regions in healthy individuals and increases with age. It remains unknown if pharyngeal pressure variability is impacted by volitional swallowing tasks. We hypothesized that pressure variability would incr...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 65; no. 1; pp. 136 - 146 |
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| Autores principales: | , |
| Formato: | Artículo |
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American Speech-Language-Hearing Association
Jan2022
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=154696188&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 154696188 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Jan2022 vid: 65 iid: 1 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 154696188 10.1044/2021_JSLHR-21-00359 ppf: 136 ppct: 10 formats: fmt: @attributes: type: P size: 881KB tig: atl: Pharyngeal Pressure Variability During Volitional Swallowing Maneuvers. aug: au: Teplansky, Kristin J. Jones, Corinne A. affil: Department of Speech, Language, and Hearing Sciences, The University of Texas at Austin Department of Neurology, The University of Texas at Austin su: Task performance Pharynx physiology Deglutition Manometers Repeated measures design Descriptive statistics Statistical correlation sug: subj: Task performance Pharynx physiology Deglutition Manometers Repeated measures design Descriptive statistics Statistical correlation ab: Purpose: Within-individual pharyngeal swallowing pressure variability differs among pharyngeal regions in healthy individuals and increases with age. It remains unknown if pharyngeal pressure variability is impacted by volitional swallowing tasks. We hypothesized that pressure variability would increase during volitional swallowing maneuvers and differ among pharyngeal regions depending on the type of swallowing task being performed. Method: Pharyngeal high-resolution manometry was used to record swallowing pressure data from 156 healthy participants during liquid (5 cc) or saliva swallows, and during volitional swallowing tasks including effortful swallow, Mendelsohn maneuver, Masako maneuver, or during postural adjustments. The coefficient of variation was used to determine pressure variability of velopharynx, tongue base, hypopharynx, and upper esophageal sphincter regions. Repeated-measures analysis of variance was used on log-transformed data to examine effects of pharyngeal region and swallowing tasks on swallow-to-swallow variability. Results: There was a significant main effect of task with greater pressure variability for the effortful swallow (p = .002), Mendelsohn maneuver (p < .001), Masako maneuver (p = .002), and the head turn (p = .006) compared with normal effort swallowing. There was also a significant main effect of region (p < .01). In general, swallowing pressure variability was lower for the tongue base and upper esophageal sphincter regions than the hypopharynx. There was no significant interaction of task and region (effortful, p = .182; Mendelsohn, p = .365; Masako, p = .885; chin tuck, p = .840; head turn, p = .059; and inverted, p = .773). Conclusions: Pharyngeal swallowing pressure variability increases in healthy individuals during volitional swallowing tasks. Less stable swallow patterns may result when tasks are less automatic and greater in complexity. These findings may have relevance to swallowing motor control integrity in healthy aging and individuals with neurogenic dysphagia. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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