Upper esophageal sphincter resting pressure varies during esophageal manometry

Upper esophageal sphincter resting pressure varies during esophageal manometry

Alternative title A pressão do esfíncter esofagiano superior varia durante a manometria esofágica
Author Rezende, Daniel Tavares Google Scholar
Herbella, Fernando A. M. Google Scholar
Silva, Luciana C. Google Scholar
Panocchia-neto, Sebastião Google Scholar
Patti, Marco G. Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
University of Chicago Department of Surgery
Abstract BACKGROUND:The upper esophageal sphincter is composed of striated muscle. The stress of intubation and the need to inhibit dry swallows during an esophageal manometry test may lead to variations in basal pressure of this sphincter. Upper esophageal sphincter is usually only studied at the final part of the test. Was observed during the performance of high resolution manometry that sphincter pressure may vary significantly over the course of the test.AIM:To evaluate the variation of the resting pressure of the upper esophageal sphincter during high resolution manometry.METHODS:Was evaluated the variation of the basal pressure of the upper esophageal sphincter during high resolution manometry. Were reviewed the high resolution manometry tests of 36 healthy volunteers (mean age 31 years, 55% females). The basal pressure of the upper esophageal sphincter was measured at the beginning and at the end of a standard test.RESULTS:The mean time of the test was eight minutes. The basal pressure of the upper esophageal sphincter was 100 mmHg at the beginning of the test and 70 mmHg at the end (p<0.001). At the beginning, one patient had hypotonic upper esophageal sphincter and 14 hypertonic. At the end of the test, one patient had hypotonic upper esophageal sphincter (same patient as the beginning) and seven hypertonic upper esophageal sphincter.CONCLUSION:A significant variation of the basal pressure of the upper esophageal sphincter was observed in the course of high resolution manometry. Probably, the value obtained at the end of the test may be more clinically relevant.

RACIONAL:O esfíncter esofagiano superior é constituído de musculatura estriada. O estresse da intubação e a necessidade de coibir as deglutições secas durante a manometria esofágica podem alterar a pressão basal do esfíncter esofagiano superior que geralmente é estudado somente ao final da manometria convencional. Notou-se na manometria de alta resolução significante variação no decorrer do exame.OBJETIVO:Avaliar a variação da pressão basal do esfíncter esofagiano superior durante a manometria de alta resolução.MÉTODO:Foi avaliada a variação de pressão basal do esfíncter esofagiano superior durante manometria de alta resolução. Foram estudados 36 voluntários sadios (idade média de 31 anos, 55% de mulheres). A pressão basal foi aferida no início e ao término do exame.RESULTADOS:O tempo médio dos exames foi de oito minutos. A pressão basal do esfíncter esofagiano superior foi de 100 mmHg no início do exame e de 70 mmHg ao final, em média (p<0.001). No início do teste, um paciente tinha o esfíncter esofagiano superior hipotônico e 14 hipertônicos. No final, um paciente tinha o esfíncter esofagiano superior hipotônico (o mesmo do início) e sete hipertônicos.CONCLUSÃO:Há significante variação na pressão basal do esfíncter esofagiano superior no curso manometria de alta resolução. Provavelmente, o valor obtido ao final do exame possa ser mais clinicamente relevante.
Keywords Esophageal sphincter
upper
Manometry
Pressure
Esfíncter esofágico superior
Manometria
Pressão
Language English
Date 2014-09-01
Published in ABCD. Arquivos Brasileiros de Cirurgia Digestiva (São Paulo). Colégio Brasileiro de Cirurgia Digestiva, v. 27, n. 3, p. 182-183, 2014.
ISSN 0102-6720 (Sherpa/Romeo)
Publisher Colégio Brasileiro de Cirurgia Digestiva
Extent 182-183
Origin http://dx.doi.org/10.1590/S0102-67202014000300005
Access rights Open access Open Access
Type Article
SciELO ID S0102-67202014000300182 (statistics in SciELO)
URI http://repositorio.unifesp.br/handle/11600/8586

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