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Lymphatic System and Diseases / Head and Neck Cancer Studies / Voice and Speech Disorders · Journal article
Russian Bulletin of Otorhinolaryngology · September 4, 2026
Encouraging direction, but not yet definitive.
This is a small, two-arm randomized controlled trial comparing semi-occluded vocal tract exercises plus standard therapy versus standard therapy alone in 64 patients with post-treatment laryngopharyngeal cancer and internal lymphedema. The trial reports a statistically significant primary endpoint (p=0.0008) and improvements in subjective swallowing and voice symptoms and objective GRBAS scores, but provides limited methodological detail and no quantified effect sizes.
Randomized controlled trial. Patients with laryngopharyngeal cancer who received radiation therapy in a single regime or as part of combined treatment after surgery; all had internal lymphedema symptoms.. Intervention: Semi-occluded vocal tract exercises combined with inhalation therapy and local anti-inflammatory, mucolytic therapy. Compared with: Conservative treatment (inhalation therapy and local anti-inflammatory, mucolytic therapy). n = 64.
Primary endpoint p-value = 0.0008 favoring semi-occluded vocal tract exercises group Reliably better dynamics in subjective assessment of swallowing and voice disorders Improved voice quality on GRBAS scale assessed by ENT specialist
Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.
If confirmed in larger trials with longer follow-up, semi-occluded vocal tract exercises may offer a non-invasive adjunct to standard lymphedema management in post-cancer head and neck patients. Current evidence is insufficient to change practice without further validation.
A small randomized controlled trial with a statistically significant primary endpoint (p=0.0008) and reported improvements in swallowing, voice, and GRBAS scores, but limited by modest sample size, lack of reported effect sizes, and insufficient detail on methods and follow-up.
As stated by the source record.
Quoted from the source exactly as published.
If confirmed in larger trials with longer follow-up, semi-occluded vocal tract exercises may offer a non-invasive adjunct to standard lymphedema management in post-cancer head and neck patients. Current evidence is insufficient to change practice without further validation.
Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.
INTRODUCTION: The internal and external head and neck lymphedema is one of the consequences of surgical and radiation treatment of laryngopharyngeal cancer. The current task is to develop lymphatic drainage techniques that are effective for internal lymphedema. OBJECTIVE: To evaluate semi-occluded vocal tract exercises effectiveness for internal lymphedema rehabilitaion in patients with laryngopharyngeal cancer. MATERIAL AND METHODS: 64 patients with laryngopharyngeal cancer received radiation therapy in a single regime or as part of the combined treatment after surgery were included. All of them had internal lymphedema symptoms. Patients were stratified into 2 equal groups: group 1 was treated with conservative treatment. In group 2 semi-occluded vocal tract exercises were added to inhalation therapy. RESULTS: =0.0008), as well as reliably better dynamics of the indicators as a subjective assessment of symptoms associated with swallowing and voice disorders by the patient, as well as voice quality by a ENT specialist using GRBAS. CONCLUSION: The application of exercises with semi-occlusion of the vocal tract in combination with local anti-inflammatory, mucolytic therapy demonstrates effectiveness in the comprehensive treatment of internal lymph-discharge ENT organs.
Taken from the source record, never inferred. Follow any of these and new work involving them reaches your briefing.