Sleeve recording of upper esophageal sphincter resting pressures during cricopharyngeal myotomy.
AUTOR(ES)
Pera, M
RESUMO
OBJECTIVE: The manometric effects of a 6-cm cricopharyngeal myotomy are recorded while the operation is being performed from cervical esophagus to the cricopharyngeus and then to the hypopharynx. SUMMARY BACKGROUND DATA: Cricopharyngeal myotomy is used in the treatment of oropharyngeal dysphagia of different causes. The operation decreases the resting pressure in the upper esophageal sphincter (UES). The components responsible for this decrease have not been clarified. METHODS: Fourteen patients with oropharyngeal dysphagia underwent a sleeve recording of the UES resting pressures under general anesthesia before and after sequential myotomy of the pharyngoesophageal junction. Patients were assessed in the awake state before and after the whole myotomy. RESULTS: Upper esophageal pressures remain unchanged after division of 2 cm of the cervical esophageal muscle. Section of 2 cm of the cricopharyngeal area results in a significant decrease of the sphincter resting pressure (p < 0.01). The division of 2 cm of hypopharyngeal muscle results in a further significant reduction of the resting pressure (p < 0.005). CONCLUSIONS: Extension of the cricopharyngeal myotomy over hypopharyngeal musculature produces a more significant decrease of UES resting pressure.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1190653Documentos Relacionados
- Cricopharyngeal myotomy in motor neurone disease.
- Functional Changes of the Upper Esophageal Sphincter in Gastroesophageal Reflux
- Pharyngeal swallowing disorders: selection for and outcome after myotomy.
- Manometry of the Normal Upper Esophageal Sphincter and its Alterations in Laryngectomy
- Upper esophageal sphincter pressure in patients with Chagas' disease and primary achalasia