Tympano-nasopharyngeal shunt operation. A new method of middle ear ventilation.
The tympano-nasopharyngeal shunt operation is recommended as a "substitute" Eustachian tube. An experimental study regarding the efficacy of tympano-nasopharyngeal shunt operation was conducted in two dogs. Finally, four patients with complete tubal stenosis were operated on by this new method within a period of one year, with no postoperative complications. The hearing improved and patients were able to inflate their middle ears. The method is claimed to have the following advantages: permanent ventilation of the middle ear with preservation of an intact drum; the middle-ear pressure can be increased by Valsalva or Politzer manoeuvres; moderate technical difficulties; no risk of postoperative complications; and suitable in children as well as adults. The disadvantages seem to be: drainage not ensured; minor risk of ascending infection.
D000233:Adenoidectomy; D000293:Adolescent; D000328:Adult; D000818:Animals; D001299:Audiometry; D004285:Dogs; D004427:Ear Diseases / Q000601:surgery; D004432:Ear, Middle / Q000601:surgery*; D005064:Eustachian Tube / Q000601:surgery*; D005260:Female; D006311:Hearing Disorders / Q000601:surgery; D006801:Humans; D007239:Infections / Q000209:etiology; D008297:Male; D008416:Mastoid / Q000601:surgery; D009305:Nasopharynx / Q000601:surgery*; D010033:Otitis Media / Q000601:surgery; D019736:Prostheses and Implants / Q000009:adverse effects / Q000379:methods; D012828:Silicones / Q000627:therapeutic use; D013719:Tensor Tympani / Q000601:surgery; D014068:Tonsillectomy
D012828:Silicones