heartburn

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heartburn,

burning sensation beneath the breastbone, also called pyrosis. Heartburn does not indicate heart malfunction but results from nervous tension or overindulgence in food or drink. The sensation is produced by spasmodic constrictions of the esophagus accompanied or occasioned by regurgitation of stomach acids, which spread upward into the throat, and may result in belching or vomiting. Physical activity immediately following ingestion of food may exaggerate symptoms.

The discomfort can usually be relieved by taking alkaline preparations to counteract the excessive acidity (see antacidantacid,
any one of several basic substances that counteract stomach acidity (see stomach). Antacids are used by physicians to treat hyperchlorhydria, i.e., the excessive production of hydrochloric acid by the parietal cells lining the stomach.
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). Proper dietary habits, e.g., eating slowly, avoiding spicy foods, and a period of physical inactivity after eating, may prevent heartburn. Sometimes the condition is symptomatic of a disease of the digestive system, such as a stomach ulcer or gall bladder disorder.

Chronic heartburn, known as gastroesophageal reflux disease (GERD) increases the risk of esophageal cancer. Persistent recurrence should be called to the attention of a physician, and is often treated with drugs, including H2-blockers such as famotidine (Pepcid) and cimetidine (Tagamet) and proton-pump inhibitors such as omeprazole (Prilosec). Surgery in which the upper dome-shaped portion of the stomach is sutured around the lower esophagus to increase the pressure on the esophogeal side of the sphincter and prevent reflux is also used to treat GERD.

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heartburn

[′härt‚bərn]
(medicine)
A burning sensation emanating from the esophagus below the sternum.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

heartburn

a burning sensation beneath the breastbone caused by irritation of the oesophagus, as from regurgitation of the contents of the stomach
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
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