Hiatal hernia

Definition:
A hiatal hernia is an abnormal protrusion of the stomach up through the diaphragm and into the chest cavity.

Description:
A hiatal or diaphragmatic hernia is different from abdominal hernias in that it is not visible on the outside of the body. With a hiatal hernia, the stomach bulges upward through the esophageal hiatus (the hole through which the esophagus passes) of the diaphragm. This type of hernia occurs more often in women than in men, and it is treated differently from other types of hernias.

Causes & symptoms:
A hiatal hernia may be caused by obesity, pregnancy, aging, or previous surgery. About 50% of all people with hiatal hernias do not have any symptoms. For those who do have symptoms, they include heartburn, usually 30-60 minutes after a meal, or mid-chest pain due to gastric acid from the stomach being pushed up into the esophagus. The pain and heartburn are usually worse when lying down. Frequent belching and feelings of abdominal fullness may also occur.

Diagnosis:
The diagnosis for a hiatal hernia is based on a person’s reported symptoms. The doctor may then order tests to confirm the diagnosis. If a barium swallow is ordered, the person drinks a chalky white barium solution, which will help any protrusion through the diaphragm to show up on the x ray that follows. Currently, a diagnosis of hiatal hernia is more frequently made by endoscopy. This procedure is done by a gastroenterologist (a specialist in digestive diseases). During an endoscopy the person is given an intravenous sedative and a narrow tube is inserted through the mouth and esophagus, into the stomach where the doctor can visualize the hernia. The procedure takes about 30 minutes and may cause some discomfort, but usually no pain. It is done on an outpatient basis.

 

(Illustration by GGS Information Services, Inc. The Gale Group.)

Treatment
Dietary and lifestyle adjustments to control a hiatal hernia include:
– Avoiding reclining after meals.
– Avoiding spicy foods, acidic foods, alcohol, and tobacco.
– Eating small frequent bland meals to keep pressure on the esophageal sphincter.
– Eating a high-fiber diet.

– Raising the head of the bed several inches with blocks to help both the quality and quantity of sleep.
Visceral manipulation done by a trained therapist can help return the stomach to its proper positioning. Deglycyrrhizinated licorice (DGL), helps balance stomach acid by improving the protective substances that line the stomach and intestines and by improving blood supply to these tissues. DGL does not interrupt the normal function of stomach acid.

Allopathic treatment:
There are several types of medications that help to manage the symptoms of a hiatal hernia. Antacids are used to neutralize gastric acid and decrease heartburn. Drugs that reduce the amount of acid produced in the stomach (H2 blockers) are also used. This class of drugs includes famotidine (sold under the name Pepcid), cimeti-dine (Tagamet), and ranitidine (Zantac). Omeprazole (Prilosec) is not an H2 blocker, but is another drug that suppresses gastric acid secretion and is used for hiatal hernias. Another option may be metoclopramide (Reglan), a drug that increases the tone of the muscle around the esophagus and causes the stomach to empty more quickly.

Expected results:
Hiatal hernias are treated successfully with medication and diet modifications 85% of the time. The prognosis remains excellent even if surgery is required in adults who are otherwise in good health.

Prevention:
Some hernias can be prevented by maintaining a reasonable weight, avoiding heavy lifting and constipation, and following a moderate exercise program to maintain good abdominal muscle tone.

KEY TERMS:
Endoscopy-A diagnostic procedure in which a tube is inserted through the mouth into the esophagus and stomach. It is used to visualize various digestive disorders, including hiatal hernias.
Herniorrhaphy-Surgical repair of a hernia.
Incarcerated hernia-A hernia that cannot be reduced, or pushed back into place, inside the intestinal wall.
Reducible hernia-A hernia that can be gently pushed back into place or that disappears when the person lies down.
Strangulated hernia-A hernia that is so tightly incarcerated outside the abdominal wall that the intestine is blocked and the blood supply to that part of the intestine is cut off.

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