title: Hydron gel implants in vocal cords.
abstract: A new operation for the correction of insufficient closure of the glottis is described. A Hydron rod is implanted while the patient is under general anesthesia at direct laryngoscopy; the operative microscope is used for visualization and illumination. The implant was introduced into a submucosal tunnel made by special instruments after a transverse incision was made of the vocal mucosa, 1 or 2 mm in front of the insertion of the processus vocalis. A spindle-form implant made from dry Hydron gel was used. This swells in the tissue within a short time. The results of the operation, which was performed successfully on 40 patients, reflects an improvement in the quality of the voice, as demonstrated by sound analysis and a considerable subjective decrease in symptoms--especially voice fatiguability.
mesh_terms: D000293:Adolescent; D000328:Adult; D001284:Atrophy; D005260:Female; D006801:Humans; D020100:Hydrogels; D008297:Male; D008875:Middle Aged; D010699:Phonation; D011102:Polyhydroxyethyl Methacrylate / Q000031:analogs & derivatives; D011109:Polymethacrylic Acids; D019736:Prostheses and Implants; D014826:Vocal Cord Paralysis / Q000503:physiopathology / Q000601:surgery; D014827:Vocal Cords / Q000473:pathology / Q000601:surgery*; D014833:Voice Quality
chemical_list: D020100:Hydrogels; D011109:Polymethacrylic Acids; C000257:polyhydroxyethyl methacrylate hydrogels; D011102:Polyhydroxyethyl Methacrylate