Hiatus Hernia
Hiatus hernia refers to a condition where the upper portion of the stomach protrudes into the chest through an opening around the esophagus. This opening is called the esophageal hiatus; usually it allows only the esophagus to pass through the diaphragm into the stomach, but occasionally it opens wide enough to permit part of the stomach to pass upwards into the chest cavoty. This happens because of weakening of the muscles of the diaphragm and subsequent enlargement of the opening. This is called “herniation”; the upward passage or even entrapment of the upper stomach above the diaphragm which results from this can cause pain, acid reflux, belching, difficulty eating, and other uncomfortable symptoms. Hiatal hernia is comparatively common. Up to 60% of 60 year olds have it to some degree.
There are 2 types of hiatal hernia: first, the sliding type, which happens when the junction between the stomach and esophagus moves up through the esophageal hiatus from time to time, for example during times of greatly increased pressure in the abdomen, as may occur when coughing, straining for a bowel movement, lifting heavy weights, and so on. When the excessive pressure reduces, the stomach moves back down to its correct location.
The fixed type of hiatus hernia (or paraesophageal hiatus hernia) is where a portion of the stomach remains stuck in the chest cavity.
Causes of Hiatal Hernia
Suspected causes include obesity, poor posture (such as slouching), frequent coughing, straining during bowel movements, bending over or heavy lifting, and a congenital predisposition. Smoking, too, may be a factor.
Hiatus Hernia Symptoms
Often, a hiatus hernia causes no symptoms. When it does they may include chest pain or a feeling of pressure, heartburn, trouble swallowing, coughing, belching, hiccups, and pain. Chest or upper abdominal pain can occur when the stomach becomes trapped over and above the diaphragm, protruding through the narrow esophageal opening or hiatus.
Other problems occur rather rarely. For example, a fixed hiatus hernia may develop into a serisous medical emergency: the blood supply to the trapped part of the stomach may be cut off, which can cause extreme pain and illness. This ”strangulated hiatal hernia” is a medical emergency.
Hiatus hernia also causes discomfort when it occurs with gastroesophageal reflux disease, commonly called GERD. This is characterized by stomach acids and digestive enzymes moving into the esophagus through the unusually weak sphincter muscle – normally, of course, this acts as a one-way valve between the esophagus and stomach. Hiatus hernia is associated with the weakening of this sphincter muscle.
Although hiatus hernia or GERD can cause chest pain which resembles angina (a collective word for heart pain) and even radiate to the arm or neck, it’s wise not to conclude that such pain is due to hiatus hernia. See a doctor to eliminate the possibility of serious problems such as coronary artery disease or heart attack.
Certainly, if you experience any of the following you should seek medical attention.
- When the symptoms are new, won’t go away, or severe
- When it is not clear what the problem may be
- When you have chest pressure or pain, especially if you have known heart disease, or diabetes, high cholesterol, high blood pressure, you are over 55 years of age, or there is a family history of heart attacks or angina at an early age
- If you are vomiting blood
- If you have dark, bloody bowel movements
- You experience palpitations or feel faint
- You are short of breath
- You cannot swallow solid food or liquids easily