Videolaryngostroboscopy as a diagnostic method in the clinical practice of otorhinolaryngologists and physicians in dental medicine

Abstract

Background
The method of stroboscopy of the larynx makes it possible to examine the movement of the vocal cords, through periodic illumination. Most often electronic videolaryngostroboscopes are used. They allow visualization of the vocal cords.
Methods
The research is conducted using a certain technique. The patient sings a certain vocal, in a tonality that is comfortable for him, and by means of a microphone, the energy of the sound signal is electronically converted into light. Through laryngostroboscopy, patients are examined before and after prosthetic treatment, to assess voice capabilities. Pathological processes or functional dysphonias can also be established.
Results and discussion
There are two possibilities for visual perception when analyzing the phonatory oscillations of the glottis: Frozen, still image of vocal fold movement and A moving image (delayed movements of the vocal folds). Laryngostroboscopy can aid the determination of important questions related to the physiology of voice function, as well as assessment and prognosis of voice capabilities before and after prosthetic treatment.
Conclusions
Laryngostroboscopy is used to study the nature of functional disorders of the voice, preliminary differential diagnosis of benign and malignant neoplasms of the vocal cords, to evaluate the results of treatment, to determine the ability of people to work, the profession that is associated with a large vocal and vocal workload and studies the problems of voice physiology.