Results 191 to 200 of about 26,116 (219)
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Transient lower esophageal sphincter relaxation
Gastroenterology, 1995RAVINDER K. MITTAL,* RICHARD H. HOLLOWAY,* ROBERTO PENAGINI, § L. ASHLEY BLACKSHAW, t and JOHN DENT* *Department of Internal Medicine, University of Virginia, Charlottesville, Virginia; *Gastrointestinal Medicine, Royal Adelaide Hospital, Adelaide, South Australia, Australia; and §Cattedra di Gastroenterologia, Istituto di Scienze Mediche, University ...
R. K. Mittal +4 more
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Lower Esophageal Sphincter Pressure as an Index of Lower Esophageal Sphincter Strength
Gastroenterology, 1970The ability of pressures measured in the lower esophageal sphincter to assess accurately the strength of the sphincter cannot be evaluated without a suitable objective measurement of sphincter strength. This study describes a measurement of strength and compares it with sphincter pressure.
S, Cohen, L D, Harris
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Lower-esophageal sphincter function does not determine resting upper-esophageal sphincter pressure
The American Journal of Digestive Diseases, 1977Records of 269 esophageal motility studies were reviewed to determine the relationship between lower-esophageal sphincter (LES) function and upper-esophageal sphincter (UES) pressure. Average and greatest UES pressures were similar in patients with LES pressures less than 10 mm Hg or greater than 20 mm Hg, and in patients with and without ...
L E, Berte, C S, Winans
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Valsalva and the Upper Esophageal Sphincter
Dysphagia, 2002Abstract not ...
Marchese-Ragona, Rosario +3 more
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Distinction of lower esophageal sphincter strength from sphincter competence
The American Journal of Surgery, 1987Although an absolute correlation has been impossible to demonstrate, it has long been thought that the manometric magnitude of the lower esophageal sphincter pressure was a good index of lower esophageal sphincter strength, and hence its competence. To study this relationship, 12 adult mongrel cats were surgically fitted with gastric cannulas. The cats
T R, McLean, C T, Bombeck, L M, Nyhus
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Disorders of the Lower Esophageal Sphincter
Annual Review of Medicine, 1975The junction of the esophagus and stomach in man is marked by a zone of elevated pressure which has been called the lower esophageal sphincter (LES) (1, 2). The purpose of this sphincter mechanism is to prevent regurgitation of gastric contents from a positive pressure cavity into the esophagus which maintains a pressure negative to the atmosphere (3 ...
R S, Fisher, S, Cohen
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Lower Esophageal Sphincter Dysfunction in Achalasia
Gastroenterology, 1971In patients with achalasia, lower esophageal sphincter (LES) dysfunction plays an important role in the impairment of esophageal emptying. To evaluate this dysfunction, the manometric characteristics of the LES were recorded for 20 normals and for 16 patients with achalasia, both before and after pneumatic dilation.
S, Cohen, W, Lipshutz
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Idiopathic Lower Esophageal Sphincter Incompetence and Esophageal Stricture
Archives of Internal Medicine, 1980Under normal circumstances, the lower esophageal sphincter (LES) acts as a pressure barrier at the gastroesophageal junction. When challenged by an increase in intra-abdominal pressure, the LES pressure correspondingly increases to maintain a dynamic equilibrium that prevents gastroesophageal reflux.
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Human upper esophageal sphincter pressure profile
American Journal of Physiology-Gastrointestinal and Liver Physiology, 1980The pressure profile of the upper esophageal sphincter was characterized in nine normal subjects. Directionally oriented intraluminal pressures were recorded, at 0.5-cm intervals over a 6-cm segment that encompassed the sphincter, by a high-fidelity low-compliance recording system.
D, Gerhardt +4 more
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Upper esophageal sphincter function during deglutition
Gastroenterology, 1988Upper esophageal sphincter function was investigated during swallows of graded volumes in 8 normal volunteers. Concurrent recordings of video-fluoroscopic and manometric studies were obtained and correlated with each other by means of a videotimer. Maximal upper esophageal sphincter (UES) pressure was typically located 1.5 cm distal to the air-tissue ...
P J, Kahrilas +4 more
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