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KMID : 0361420150390030425
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Journal of Korean Academy of Rehabilitation Medicine
2015 Volume.39 No. 3 p.425 ~ p.431
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Effects of Head Rotation and Head Tilt on Pharyngeal Pressure Events Using High Resolution Manometry
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Kim Cheol-Ki
Ryu Ju-Seok
Song Sun-Hong
Koo Jung-Hoi
Lee Kyung-Duck
Park Hee-Sun
Oh Yoon-gul
Min Kyung-Hoon
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Abstract
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Objective: To observe changes in pharyngeal pressure during the swallowing process according to postures in normal individuals using high-resolution manometry (HRM).
Methods: Ten healthy volunteers drank 5 mL of water twice while sitting in a neutral posture. Thereafter, they drank the same amount of water twice in the head rotation and head tilting postures. The pressure and time during the deglutition process for each posture were measured with HRM. The data obtained for these two postures were compared with those obtained from the neutral posture.
Results: The maximum pressure, area, rise time, and duration in velopharynx (VP) and tongue base (TB) were not affected by changes in posture. In comparison, the maximum pressure and the pre-upper esophageal sphincter (UES) maximum pressure of the lower pharynx in the counter-catheter head rotation posture were lower than those in the neutral posture. The lower pharynx pressure in the catheter head tilting posture was higher than that in the counter-catheter head tilting. The changes in the VP peak and epiglottis, VP and TB peaks, and the VP onset and post-UES time intervals were significant in head tilting and head rotation toward the catheter postures, as compared with neutral posture.
Conclusion; The pharyngeal pressure and time parameter analysis using HRM determined the availability of head rotation as a compensatory technique for safe swallowing. Tilting the head smoothes the progress of food by increasing the pressure in the pharynx.
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KEYWORD
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Upper esophageal sphincter, Manometry, Pressure, Deglutition disorders
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