Biomedical subjects
Publications and source records attributed to J B Roch.
Electroglottography allows a precise observation of the vocal folds behavior in phonation of laryngeal motion deficiencies; the therapy can be improved by compared evaluation of the vocal fold contact area.
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Each vocal gesture creates each different vocal style. The voice therapist helps the comedian to find all his vocal styles and teaches him how to switch from one to another quickly, while maintaining the integrity of each vocal configuration.
A certain number of polyps of the vocal folds result from violent, intense and unaccustomed physical activity. The development of these polyps is certainly linked to high subglottal pressure and the abrupt reduction of the same.
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Presented is a summary of our experience with 157 patients having a diagnosis of epidermoid cyst, glottic sulcus, or mucosal bridge of the true vocal cord. Each patient in this group was diagnosed and treated jointly by a phoniatrist and microlaryngoscopist and then evaluated for results of surgical and phoniatric therapy. Included in the discussion are methods of examination and diagnosis, microanatomy and histopathology of the lesions, methods of treatment, and results of treatment. An argument for a common etiology for these lesions is advanced.
Seventy-one cases of intracordal cysts are reported. They were all diagnosed between 1970 and 1980: 53 were epidermoid and 18 retention cysts. They caused longstanding dysphonia characterized by lowered tonality, huskiness, desonorization, and vocal strain. Clinical signs were often discrete and stroboscopy revealed a lack of vibrations on the cystic cord. Surgery was followed by vocal re-education and there was a high percentage of good vocal results.
Fifty-three cases of intracordal epidermoid cysts diagnosed, treated and followed from 1972 to 1981 are presented. In the clinical evaluation, special attention must be paid to the type of dysphonia and morphology of the vocal cords at indirect laryngoscopy. The epidermoid cyst is not easily visualized and the examiner must take into account signs like "monochorditis," slight bulging, unilateral nodule and diminished or abolished vibrations of one of the cords at stroboscopy. Microsurgical excision followed by voice therapy is the recommended treatment. The pathogenesis of these cysts is still speculative. Two theories are discussed: the traumatic theory and the dysembryoplastic theory.