Esophageal Cancer – symptoms and treatment

Definition of Esophageal Cancer Esophageal Cancer – malignant growths in the esophagus. Cancer of the esophagus takes one of two forms: adenocarcinoma or squamous cell carcinoma. Adenocarcinoma is the more common form and nearly always originates near the esophageal entry to the stomach. Esophageal adenocarcinoma is nearly always a progression of Barrett’s esophagus, a condition in which the tissue structure of the […]

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Nasogastric Aspiration and Lavage – Pumping the Stomach

Nasogastric Aspiration and Lavage Definition Nasogastric Aspiration and Lavage – the clinical term for the procedure commonly called “pumping the STOMACH.” In nasogastric aspiration and lavage, the health-care provider inserts a narrow tube (catheter) through the NOSE, down the back of the THROAT and the ESOPHAGUS, and into the stomach. The stomach’s contents are then sucked through […]

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Barrett’s Esophagus – what is, definition and diagnosis

Barrett’s Esophagus Definition Changes to the lining of the ESOPHAGUS in which the tissue becomes similar to that of the intestine. The altered tissue is Barrett’s esophagus does not itself cause symptoms, though the condition often appears in association with GASTROESOPHAGEAL REFLUX DISORDER (GERD), which does cause symptoms. The key clinical significance of Barrett’s esophagus is its […]

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Fiber and Gastrointestinal Health – sources and benefits of foods

Definition of Fiber Fiber, the indigestible residue of plant-based foods, adds bulk to the gastrointestinal contents. This bulk helps stimulate PERISTALSIS, the rhythmic MUSCLE contractions of the intestinal wall that move gastrointestinal contents through the digestive process. In the SMALL INTESTINE where digestive juices work to break down food particles into molecules of NUTRIENTS, the consistency fiber adds to the […]

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Nausea – definition and causes

Nausea Definition Nausea is a sensation of queasiness and the feeling of being about to vomit. Though nausea feels as though it arises from the gastrointestinal tract, the signals that initiate its sensations originate in two areas of the BRAIN, the chemoreceptor trigger zone and the emetic (VOMITING) center. These areas are bilateral, existing in pairs […]

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Bezoar – stones in stomach – definition and symptoms

Bezoar Definition A hardened mass of indigestible matter that forms in the STOMACH, such as HAIR (trichobezoar), insoluble plant fiber (phytobezoar), or a combination of hair and plant fiber (trichophytobezoar). Bezoars can develop in children who chew their hair or eat substances such as sand or grass and in adults who have slowed gastrointestinal motility, such as might occur […]

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Gastrectomy surgery – definition and complications

Gastrectomy Surgery Definition Partial or complete surgical removal of the STOMACH, typically to treat STOMACH CANCER or uncontrollable bleeding resulting from PEPTIC ULCER DISEASE. Gastrectomy is a major OPERATION, typically an OPEN SURGERY, performed under general ANESTHESIA that requires several days to a week in the hospital and 8 to 12 weeks for total recovery and return to regular activities. An individual’s course of […]

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Percutaneous Liver Biopsy procedure

Percutaneous Liver Biopsy Definition a diagnostic procedure for removing a tissue sample from the LIVER. The doctor typically performs percutaneous liver biopsy on an outpatient basis in a hospital setting. Most people prefer to receive a mild sedative before the procedure. After anesthetizing the abdominal SKIN and tissue above the liver, the doctor makes a tiny incision and inserts […]

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Biliary Atresia – symptoms and treatment

Biliary Atresia Definition Biliary Atresia – absence or malformation of the BILE DUCTS, also called neonatal CHOLESTASIS. Biliary atresia is nearly always congenital (present at birth). In some infants biliary atresia appears to develop as a consequence of an inflammatory process that occurs shortly after birth, destroying the bile ducts. Biliary atresia prevents the flow of BILE from the LIVER, […]

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H2 Antagonist (blocker) Medications

H2 Antagonist (blocker) Medications Definition H2 Antagonist (blocker) Medications – medications that block molecular structures called histamine 2 receptors in the lining of the STOMACH. Histamines are chemicals called mediators that stimulate specific cells. Cells within the stomach’s lining, called enterochromaffin-like (ECL) cells, release HISTAMINE in response to the digestive HORMONE gastrin. The histamine binds with H2 […]

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