Related Experiment Video
Updated: Jun 25, 2026

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
Published on: December 1, 2023
[Videolaryngostroboscopic examination of treatment effects in patients with chronic hyperthrophic larynges]
Wiesław Kluch1, Jurek Olszewski
1Klinika Otolaryngologii i Onkologii Laryngologicznej, II Katedry Otolaryngologii UM w Łodzi.
Introduction:
This work aimed at assessing effects of surgical treatment and post-operative rehabilitation of chronic hyper trophic laryngitis by videolaryngostroboscopy and the GRBAS scale.
Material And Methods:
The examinations were carrie on 50 patients of both sex, including 16 women (32.0%) and 34 men (68.0%) at the age of 19-66, surgically treated due t oedema hypertrophic lesions in the larynx. The voice was assessed by the perceptive GRBAS scale, a subjective voice self-assessment questionnaire, and through pre- and post-therapy videolaryngostroboscopic tests, which were also conducted afte phoniatric rehabilitation (30 days after the operation). Physical therapy (iontotherapy with hydrocortisone and 1% solutio of CaCl2) and respiratory and phonatory exercises were introduced in the rehabilitation.
Results:
The GRBAS scale indicate that the patients with the Reincke's oedema and vocal fold polyp showed greater voice improvement after the therapy an rehabilitation than those with chronic hypertrophic laryngitis. Contrary to the assessment carried out before the surgica procedure, the hoarseness level, rough voice, breathing voice, weak voice and tense voice mainly ranged between 0 and scale. In stroboscopy a correct marginal shift and occlusion of the glottis were noticed in each case after eliminating lesion like Reincke's oedema and vocal fold polyp (merely in 6.0% we found a disorder in the marginal shift). In the above patient their voice formation was unrestrained, 69.0% and 75.0% respectively, mid-location of the voice was normal in 92.0% an 88.0%, normal phonation time in 85.0% and 94.0%, and accurate voice setting in 77.0% and 75.0%. In stroboscopy the wors results of the voice assessment were obtained in the laryngeal papilloma patient.
Conclusions:
The videolaryngostroboscop seems a perfect diagnostic method in larynx diseases, both in qualifying patients for a surgical treatment and monitorin effects of the treatment and post-operative rehabilitation.
Related Concept Videos
Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques
Larynx
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids, corniculates, and...
Endoscopic Studies I: Bronchoscopy and Thoracoscopy
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due to...
Chronic Pharyngitis
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...

