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KMID : 0361420160400061018
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Journal of Korean Academy of Rehabilitation Medicine
2016 Volume.40 No. 6 p.1018 ~ p.1023
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Increased Bolus Volume Effect on Delayed Pharyngeal Swallowing Response in Post-stroke Oropharyngeal Dysphagia: A Pilot Study
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Park Jin-Woo
Sim Gyu-Jeong
Yang Dong-Chan
Lee Kyoung-Hwan
Chang Ji-Hea
Nam Ki-Yeun
Lee Ho-Jun
Kwon Bum-Sun
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Abstract
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Objective: To confirm a relationship between the pharyngeal response and bolus volume, and examine whether increasing the fluid bolus volume can improve penetration and aspiration for stroke dysphagic patients.
Methods: Ten stroke patients with a delayed pharyngeal response problem confirmed by a videofluoroscopic swallowing study (VFSS) were enrolled. Each subject completed two swallows each of 2 mL, 5 mL, and 10 mL of barium liquid thinned with water. The pharyngeal delay time (PDT) and penetration-aspiration scale (PAS) were measured and the changes among the different volumes were analyzed.
Results: PDTs were shortened significantly when 5 mL and 10 mL of thin barium were swallowed compared to 2 mL. However, there was no significant difference in PAS as the bolus volume increased.
Conclusion: The increased fluid bolus volume reduced the pharyngeal delay time, but did not affect the penetration and aspiration status.
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KEYWORD
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Deglutition disorders, Stroke, Reaction time, Respiratory aspiration, Fluoroscopy
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