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. 2023 Aug 4:14:1213491.
doi: 10.3389/fneur.2023.1213491. eCollection 2023.

Findings of a videofluoroscopic swallowing study in patients with dysphagia

Qingjia Cui  1 , Bing Wei  2 , Yuan He  2 , Qian Zhang  2 , Weiwei Jia  2 , Haiying Wang  2 , Jianing Xi  3 , Xin Dai  2
Affiliations

Findings of a videofluoroscopic swallowing study in patients with dysphagia

Qingjia Cui et al. Front Neurol. .

Abstract

Objective: Swallowing examination is crucial in patients with dysphagia. We aimed to compare qualitative and quantitative videofluoroscopic swallowing study (VFSS) results to provide reference for standardizing quantitative parameters.

Materials and methods: In total, 117 patients with dysphagia were included, 38 with Parkinson's disease and 39 and 40 in convalescence following cerebral hemorrhage and infarction. VFSS was both qualitatively and quantitatively analyzed.

Results: A significant difference of Oral transit time was found between the oral motor function grades (p < 0.001), also was swallowing reaction times found between swallowing reaction duration grades (p < 0.001), and soft palate lift duration between the soft palate lift grades (p < 0.001). Superior hyoid bone movement (p < 0.001), anterior hyoid bone movement (p < 0.001), hyoid pause time (p < 0.001), and hyoid movement duration (p = 0.032) had significant differences between the hyoid laryngeal complex movement grades, as did the pharyngeal cavity transit time among the cricopharyngeal muscle opening duration grades (p < 0.001). The laryngeal vestibule closure duration differed among the glottic closure grades (p < 0.001). No statistically significant difference in upper esophageal sphincter opening diameter (p = 0.682) or duration (p = 0.682) among the cyclopharyngeal muscle opening duration grades. The pharyngeal area at rest did not significantly differ among the different vallecular residue (p = 0.202) and pyriform sinus residue (p = 0.116) grades.

Conclusion: Several quantitative parameters can reflect the swallowing assessment process well. Further optimization of quantitative parameters is recommended.

Keywords: dysphagia; parameters; qualitative analysis; quantitative analysis; videofluoroscopic swallowing study.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

Figure 1
Figure 1
Hyoid bone superior and anterior movement based on videofluroscopy. (A) screenshot showing the initial state of the hyoid bone after rotation; (B) screenshot of the time point at which the hyoid bone has been lifted to the highest and farthest position after rotation. x1 is the horizontal coordinate of the hyoid resting position, and y1 is the vertical coordinate of the hyoid resting position; x2 is the abscissa of the farthest point of hyoid motion, and y2 is the ordinate of the farthest point of hyoid motion; C4xl is the abscissa of the lower anterior corner of C4 in the hyoid resting position, and C4yl is the ordinate of the lower anterior corner of C4 in the hyoid resting position; C4x2 is the abscissa of the lower anterior corner of C4, the farthest point of hyoid motion, and C4y2 is the ordinate of the lower anterior corner of C4, the farthest point of hyoid motion.
Figure 2
Figure 2
The upper esophageal sphincter (UES) based on videofluroscopy.
See this image and copyright information in PMC

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