Donghwi Park1, Cheol Min Shin2, Ju Seok Ryu3. 1. Department of Rehabilitation Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam-si, Gyeonggi-do, South Korea. 2. Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam-si, Gyeonggi-do, South Korea. 3. Department of Rehabilitation Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam-si, Gyeonggi-do, South Korea. Electronic address: jseok337@snu.ac.kr.
Abstract
OBJECTIVES: To investigate and compare the mechanism of swallowing with respect to the viscosity of ingested material between patients with and without dysphagia. DESIGN: Prospectively collected and retrospectively analyzed clinical study. SETTING: General teaching hospital, rehabilitation unit. PARTICIPANTS: We retrospectively reviewed the high-resolution manometry (HRM) results of 35 patients with dysphagia symptoms (N=35). Additionally, we included 18 patients without dysphagia. Based on videofluoroscopic swallowing study results, we classified the patients into 2 groups: one with aspiration and the other without aspiration. INTERVENTION: Swallowing of a 5-mL thin liquid and 5-mL honey-like liquid in all patients. MAIN OUTCOME MEASURE: HRM of various variables during the swallowing process. RESULTS: There was no significant difference between the thin liquid and honey-like liquid with respect to parameters for HRM in the patients without dysphagia and in the nonaspiration and aspiration groups. However, in a comparison between thin liquid and honey-like liquid with respect to visuospatial and timing variables, the degree of differences in the maximal pressure of the velopharynx in the aspiration group was significantly larger than the patients without dysphagia and the nonaspiration group (P<.05). CONCLUSIONS: Our results indicate that there is a clear difference in the degree of adaptation to viscosity between the 3 groups-patients without dysphagia, patients with aspiration, and patients without aspiration. These differences may provide an explanation for the mechanism of swallowing, which may be useful for the treatment of dysphagia.
OBJECTIVES: To investigate and compare the mechanism of swallowing with respect to the viscosity of ingested material between patients with and without dysphagia. DESIGN: Prospectively collected and retrospectively analyzed clinical study. SETTING: General teaching hospital, rehabilitation unit. PARTICIPANTS: We retrospectively reviewed the high-resolution manometry (HRM) results of 35 patients with dysphagia symptoms (N=35). Additionally, we included 18 patients without dysphagia. Based on videofluoroscopic swallowing study results, we classified the patients into 2 groups: one with aspiration and the other without aspiration. INTERVENTION: Swallowing of a 5-mL thin liquid and 5-mL honey-like liquid in all patients. MAIN OUTCOME MEASURE: HRM of various variables during the swallowing process. RESULTS: There was no significant difference between the thin liquid and honey-like liquid with respect to parameters for HRM in the patients without dysphagia and in the nonaspiration and aspiration groups. However, in a comparison between thin liquid and honey-like liquid with respect to visuospatial and timing variables, the degree of differences in the maximal pressure of the velopharynx in the aspiration group was significantly larger than the patients without dysphagia and the nonaspiration group (P<.05). CONCLUSIONS: Our results indicate that there is a clear difference in the degree of adaptation to viscosity between the 3 groups-patients without dysphagia, patients with aspiration, and patients without aspiration. These differences may provide an explanation for the mechanism of swallowing, which may be useful for the treatment of dysphagia.
Authors: Rodolfo E Peña-Chávez; Nicole E Schaen-Heacock; Mary E Hitchcock; Atsuko Kurosu; Ryo Suzuki; Richard W Hartel; Michelle R Ciucci; Nicole M Rogus-Pulia Journal: Dysphagia Date: 2022-10-20 Impact factor: 2.733
Authors: Jee Hyun Suh; Donghwi Park; In Soo Kim; Hayoung Kim; Cheol Min Shin; Ju Seok Ryu Journal: Medicine (Baltimore) Date: 2019-06 Impact factor: 1.817
Authors: Jeoung Kun Kim; Yoo Jin Choo; Gyu Sang Choi; Hyunkwang Shin; Min Cheol Chang; Donghwi Park Journal: J Korean Med Sci Date: 2022-02-14 Impact factor: 2.153