Automated long-term measurement of swallowing as a new procedure in dysphagia diagnostics

Introduction The evaluation of swallowing is only possible as a snapshot with the standard measuring methods (FESS, VFFS). With the development of a portable combined bioimpedance and EMG measurement system (RehaIngest, Hasomed), it is now possible for the first time to observe swallowing processes over a long period oftime with automated evaluation. The long-term measurement was tested in an evaluation study.

Methods Prospective long-term measurements (> two hours) were recorded and evaluated with the measuring system. The measurement results (extension of laryngeal elevation, speed of laryngeal elevation and swallowing frequency) were compared with the results of a flexible endoscopic swallowing examination.

Results Measurements of 38 subjects were included, including 20 subjects without dysphagia and 18 dysphagic patients with tracheal cannula. The long-term measurement was technically uncomplicated and without complications. There was a significant difference in the parameters extension of laryngeal elevation, speed of laryngeal elevation and swallowing frequency between the groups, which correlated with the observations from FEES.

Conclusion With the tested BI- and EMG- measuring system for the first time an easy to use measuring device for a long-term measurement of swallowing is available. This results in new parameters for the evaluation of swallowing disorders. A multitude of clinical possibilities for the application are opened up. For example, in tracheal cannula management, when it comes to the question of changing the tracheal cannula status or decannulation, or in cases where the indication for tracheotomy is unclear. This is currently undergoing further clinical trials.

Poster-PDF A-1659.pdf

Publication History

Article published online:
13 May 2021