Background: One of several causes of tracheoation of pharyngoesophageal segment. ยฉ 1997 John Wiley & esophageal puncture (TEP) speech failure after total laryngec-Sons, Inc. Head Neck 19: 92-97, 1997. tomy is disturbance in relaxation of the pharyngoesophageal (PE)
Keywords: botulinum neurotoxin; tracheoesophageal puncture segment. We introduce the use of chemical denervation of the speech; laryngectomy PE segment through botulinum neurotoxin (Botoxเฎพ) injection to improve TEP speech.
Methods: An analysis was performed on eight patients who received Botoxเฎพ injections for TEP speech problems after total Botulinum toxin type A, a neurotoxin synthelaryngectomy at the University of Iowa between June 4, 1991 and sized by the bacillus Clostridium botulinum, has August 8, 1994. Retrospective chart review identified the evolution been found to be of therapeutic value in the of pretreatment evaluation and injection technique which became treatment of a variety of ophthalmologic and standardized in April 1992. Prospective evaluation of results was neurologic disorders. [1][2][3] The biologic effect of this recorded by a single speech pathologist who subjectively identified the response to Botoxเฎพ in all patients and recorded pressure neurotoxin has been exploited to successfully readings at the tracheostoma site during speech in 6 patients.
treat a variety of muscle contraction abnormali-
Results: Seven of the eight patients were noted to have imties. In the field of head and neck surgery, botuliproved TEP speech following injection. Five of these seven panum neurotoxin has proven to be an efficacious tients experienced substantially improved speech, three of whom treatment of disorders such as hemifacial spasm, had no ability to produce speech prior to the Botoxเฎพ injection.
Conclusion: Botoxเฎพ injection is a safe and effective method laryngeal dystonia, oromandibular dystonia, and spasmodic torticollis. [4][5][6][7][8][9][10][11] Botulinum toxin type A (Botox) exerts its effect by binding at the presynaptic cholinergic