Gastrointestinal Case Histories - Case 19

A 26-year-old business executive complained of a dull pain (heartburn) behind the sternum. The pain was postprandial (occurred after meals) and disappeared within a few minutes to an hour. It was often associated with belching and often was worse on lying down or on exertion after heavy meals. Sometimes it radiated to the back, jaws, shoulders, and down the inner aspects of the arms, simulating angina pectoris. X-rays revealed a small portion of the stomach above the diaphragm, and an endoscopic biopsy revealed mucosal inflammation. Esophageal manometry (determining pressures at the lower esophageal sphincter, LES) revealed decreased LES pressure. Esophageal pH monitoring showed reflux of gastric contents into the esophagus and provided direct evidence of gastroesophageal reflux. Recommended treatment for this individual is avoidance of strong stimulants of gastric acid secretion (e.g., coffee, alcohol) and avoidance of certain drugs (e.g., anticholinergics), and specific foods (fats, chocolates, whole milk, and orange juice), and smoking, all of which reduce LES competence. Elevation of the head of the bed by about six inches is also recommended. Suggested treatments also include the use of cholinergic agonists (e.g., bethanechol) and the use of histamine (H2) antagonists (cimetidine).

1. What is the disorder of this 26-year-old business executive? Explain.

2. What mechanisms normally prevent gastric reflux into the esophagus when lying down or bending over?

3. Why are anticholinergic agents avoided and cholinergic agonists recommended in the treatment of gastroesophageal reflux?

4. Why are histamine (H2) antagonists recommended?

5. Why is elevation of the head of the bed recommended?

6a. What is the normal pH of the esophagus?

6b. Of the stomach?

6c. Predict values for the gastroesophageal patient in this case for lower esophageal and stomach pH.

Please enter your e-mail address:

If you would like your answers submitted to your instructor, please provide his/her e-mail address (or you must re-enter your e-mail address here for this form to work):

Please enter your full name:

A copy of your answers will also be submitted to your e-mail address so you may print the information.

Table of Contents

feedback form | permissions | international | locate your campus rep | request a review copy

digital solutions | publish with us | customer service | mhhe home


Copyright ©2001 The McGraw-Hill Companies.
Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of the The McGraw-Hill Companies.