Measurements of tube function of patients after laryngectomy in a hypobaric/hyperbaric pressure chamber

Introduction Laryngectomized patients have impaired upper respiratory flow. This leads to a modification of the nasal and pharyngeal mucosa as well as an altered nasal cycle and mucociliary transport. These patients are therefore particularly suited to investigate the influence of the above-mentioned changes on tube function. The aim of the study is to measure tube function in patients who have undergone laryngectomy.

Material and methods In the hypo-/hyperable pressure chamber, two decompression phases are planned in the pressure profile. The parameters tube opening pressure and tube closure pressure are measured. In addition, the tube opening time and the tube opening frequency for passive and active tube opening are determined in a standardized procedure. The results were compared with those of healthy volunteers.

Results No abnormalities were observed by ear microscopy. The results of the measured tube parameters in laryngectomized patients did not differ significantly from those of healthy volunteers. In laryngectomized patients, there were more examinations stopped due to pain.

Conclusion / Discussion The function of the Eustachian tube does not differ between patients who underwent total laryngectomy and healthy volunteers. However, due to the lack of the possibility of active pressure equalization, these patients often exhibit a baroassociated tube ventilation disorder.

Poster-PDF A-1860.PDF

Publication History

Article published online:
10 June 2020