Upper esophageal sphincter during transient lower esophageal sphincter relaxation: effects of reflux content and posture
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چکیده
منابع مشابه
Upper esophageal sphincter during transient lower esophageal sphincter relaxation: effects of reflux content and posture.
Although some studies show that the upper esophageal sphincter (UES) contracts during transient lower esophageal sphincter relaxation (TLESR), others show that it relaxes. We hypothesized that the posture of the subject and constituents of gastroesophageal reflux (GER) may determine the type of UES response during the TLESR. High-resolution manometry and esophageal pH/impedance recording were p...
متن کاملSpecific Movement of Esophagus During Transient Lower Esophageal Sphincter Relaxation in Gastroesophageal Reflux Disease
BACKGROUND/AIMS Transient lower esophageal sphincter relaxation (TLESR) is the main mechanism of gastroesophageal reflux disease (GERD). The aim of this study was to investigate the characteristics of transient lower esophageal sphincter movement in patients with or without gastroesophageal reflux by high-resolution manometry (HRM). METHODS From June 2010 to July 2010, we enrolled 9 patients ...
متن کاملUpper esophageal sphincter function during gastroesophageal reflux events revisited.
Upper esophageal sphincter (UES) function during gastroesophageal reflux events is not completely elucidated because previous studies addressing this issue yielded conflicting results. We reexamined the UES pressure response to intraluminal esophageal pressure and pH changes induced by reflux events. We studied 14 healthy, asymptomatic volunteers (age 49 +/- 6 yr) and 7 gastroesophageal reflux ...
متن کامل[Transient lower esophageal sphincter relaxation and the related esophageal motor activities].
Transient lower esophageal sphincter (LES) relaxation (TLESR) is defined as LES relaxation without a swallow. TLESRs are observed in both of the normal individuals and the patients with gastroesophageal reflux disorder (GERD). However, TLESR is widely considered as the major mechanism of the GERD. The new equipments such as high resolution manometry and impedance pH study is helped to understan...
متن کاملUpper Esophageal Sphincter Resting Pressure Varies during Esophageal Manometry
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 pre...
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ژورنال
عنوان ژورنال: American Journal of Physiology-Gastrointestinal and Liver Physiology
سال: 2010
ISSN: 0193-1857,1522-1547
DOI: 10.1152/ajpgi.00486.2009