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J Korean Dysphagia Soc 2016; 6(1): 34-41

Published online January 1, 2016

Copyright © The Korean Dysphagia Society.

Influence of the Swallowing Posture and Liquid Thickness on the Ease of Pill Swallowing in Healthy Adults

Won Kyung Lee, M.D.1, Han Gil Seo, M.D.1, Seung Woo Cha, M.D.1, Jiwoon Yeom, M.D.1, Woo Hyung Lee, M.D.1, Byung-Mo Oh, M.D., Ph.D.1, Tai Ryoon Han, M.D., Ph.D.2

1Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul, 2Gangwon do Rehabilitation Hospital, Chuncheon, Korea

Abstract

Objective: To investigate the influence of the swallowing posture and liquid thickness on the easiness of pill swallowing in healthy adults. Method: The subjects were 12 healthy young group (19-40 years) and 10 elderly group (65- years). Each subject was examined under videofluoroscopy while swallowing barium-containing placebo pills with six different methods: free fluid with neutral (FN), chin down (FD), chin up (FU), head rotated to left (FL), head rotated to right postures (FR), and thickened fluid with neutral posture (TN). The subjects rated their ease of pill swallowing on a 5-point Likert scale. Time variables were evaluated from the videofluoroscopy images. Result: FD, FU and FL were rated significantly less comfortable than FN for pill swallowing. Duration from the start signal to the mandible angle and to laryngeal elevation was significantly prolonged with FD and FL compared to FN. Duration from the start signal to the upper esophageal sphincter was significantly prolonged with FD compared to FN. There were no significant differences on either easiness of swallowing or the time variables between FN and TN. Duration from the start signal to the mandible angle and to the upper esophageal sphincter was significantly longer in the elderly group than the young group with all swallowing methods except FU. In the elderly group, duration from the start signal to laryngeal elevation was significantly shorter with FU than FN. Conclusion: Chin down posture is uncomfortable and prolong swallowing time during pill swallowing. In the neutral posture, pill swallowing with thickened fluid is comparable to that with free fluid. Chin up posture may shorten pill swallowing time in elderly.

Keywords: Pill, Swallowing, Dysphagia, Fluoroscopy

Article

Original Article

J Korean Dysphagia Soc 2016; 6(1): 34-41

Published online January 1, 2016

Copyright © The Korean Dysphagia Society.

Influence of the Swallowing Posture and Liquid Thickness on the Ease of Pill Swallowing in Healthy Adults

Won Kyung Lee, M.D.1, Han Gil Seo, M.D.1, Seung Woo Cha, M.D.1, Jiwoon Yeom, M.D.1, Woo Hyung Lee, M.D.1, Byung-Mo Oh, M.D., Ph.D.1, Tai Ryoon Han, M.D., Ph.D.2

1Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul, 2Gangwon do Rehabilitation Hospital, Chuncheon, Korea

Abstract

Objective: To investigate the influence of the swallowing posture and liquid thickness on the easiness of pill swallowing in healthy adults. Method: The subjects were 12 healthy young group (19-40 years) and 10 elderly group (65- years). Each subject was examined under videofluoroscopy while swallowing barium-containing placebo pills with six different methods: free fluid with neutral (FN), chin down (FD), chin up (FU), head rotated to left (FL), head rotated to right postures (FR), and thickened fluid with neutral posture (TN). The subjects rated their ease of pill swallowing on a 5-point Likert scale. Time variables were evaluated from the videofluoroscopy images. Result: FD, FU and FL were rated significantly less comfortable than FN for pill swallowing. Duration from the start signal to the mandible angle and to laryngeal elevation was significantly prolonged with FD and FL compared to FN. Duration from the start signal to the upper esophageal sphincter was significantly prolonged with FD compared to FN. There were no significant differences on either easiness of swallowing or the time variables between FN and TN. Duration from the start signal to the mandible angle and to the upper esophageal sphincter was significantly longer in the elderly group than the young group with all swallowing methods except FU. In the elderly group, duration from the start signal to laryngeal elevation was significantly shorter with FU than FN. Conclusion: Chin down posture is uncomfortable and prolong swallowing time during pill swallowing. In the neutral posture, pill swallowing with thickened fluid is comparable to that with free fluid. Chin up posture may shorten pill swallowing time in elderly.

Keywords: Pill, Swallowing, Dysphagia, Fluoroscopy

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