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The objective of the study, after reviewing the recent literature, is to corroborate the thesis of the authors considering the injection of botulinum toxin as a gesture that is both diagnostic and therapeutic in the disorders of the Upper Esophageal Sphincter and reinforce the results already published with a larger series of patients.
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Layout table for eligibility information
Ages Eligible for Study:
18 Years and older (Adult, Older Adult)
Sexes Eligible for Study:
- Subject having at least one injection of botulinum toxin A in the crico-pharyngeal muscle for Upper Esophageal Sphincter dysfunction in the ENT department and cervico-facial surgery of Hautepierre.
Man or woman whose age older than 18 years
Dysphagia with solids and / or liquids
Dysfunction of primary or secondary Upper Esophageal Sphincter with indirect video-fibroscopy and / or video-fluoroscopy and / or high resolution pharyngo-oesophageal manometry
Subject having at least one injection of botulinum toxin A in the crico-pharyngeal muscle for Upper Esophageal Sphincter dysfunction in the ENT department and cervico-facial surgery of Hautepierre.
Subject who has consented to the use of his data from his medical file for the purpose of this research
Myotomy in the first place
Refusal of the subject to participate in the study