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Samples in periodicals archive:
Abnormal upper esophageal sphincter function in achalasia.
EGD showed mild gastritis and two flat salmon-colored mucosal patches just distal to the upper esophageal sphincter (Fig.
Globus is often associated with upper esophageal sphincter (UES) hypertension and abnormalities in UES relaxation.
Manometry of the upper esophageal sphincter revealed a high resting pressure (160 mm Hg) with poor relaxation (residual pressure: 20 mm Hg).
4) They proposed other potential mechanisms, including (1) functional derangement of the upper esophageal sphincter secondary to the pressure of the endotracheal tube cuff and (2) the use of drugs that impair esophageal motility.
Similarly, using esophageal pH data (even at a proximal esophageal location) to prove the presence or absence of LPR is invalid, because the upper esophageal sphincter (UES) functions as the final barrier against LPR.
30) The proximal probe must be placed just above the upper esophageal sphincter in the hypopharynx.
Several authors have reported that the upper esophageal sphincter is a difficult area to examine with a flexible esophagoscope.