Hiatal hernia is anatomical abnormalities in which part of the stomach protrudes through the diaphragm and chest. hiatal hernia, even if they are present in approximately 15% of the population, they are associated with symptoms of a small proportion of these victims.
Normally, the esophagus or food tube through the chest through the diaphragm, stomach and enters through a hole in the diaphragm called the esophageal hiatus. Just below the diaphragm, the esophagus joins the stomach. In patients with hiatal hernia, the opening of the esophageal hiatus (hiatal opening) is higher than normal, and part of the upper stomach slips or is (hernia) by breaking and chest. Although sometimes hiatal hernia in infants, which may be present from birth, hiatal hernia in the majority of adults believed that developed over many years.
It is thought that hiatal hernias are caused by a break more than usual the esophagus, the hole in the diaphragm through which esophagus thoracic cavity to the, in association with a large opening, part of the stomach "slips" in the chest. Other possible factors include:
- Persistent shortening of the esophagus (perhaps caused by inflammation and scarring of the esophagus or stomach acid regurgitation), which extends from the stomach.
- Extremely attachment loss of the esophagus to the diaphragm, which allows the esophagus and stomach to slip upwards.