So what is Acid Reflux Gastroesophageal reflux disease?Gastroesophageal reflux disease (GERD) is a condition in which the stomach contents (food or liquid) leak backwards from the stomach into the esophagus (the tube from the mouth to the stomach). This action can irritate the esophagus, causing heartburn and other symptoms.
Causes, incidence, and risk factorsWhen you eat, food passes from the throat to the stomach through the esophagus (also called the food pipe or swallowing tube). Once food is in the stomach, a ring of muscle fibers prevents food from moving backward into the esophagus. These muscle fibers are called the lower esophageal sphincter, or LES.
If this sphincter muscle doesn't close well, food, liquid, and stomach acid can leak back into the esophagus. This is called reflux or gastroesophageal reflux. Reflux may cause symptoms, or it can even damage the esophagus.
The risk factors for reflux include:
- Alcohol (possibly)
- Hiatal hernia (a condition in which part of the stomach moves above the diaphragm, which is the muscle that separates the chest and abdominal cavities)
- Anticholinergics (e.g., for seasickness)
- Beta-blockers for high blood pressure or heart disease
- Bronchodilators for asthma
- Calcium channel blockers for high blood pressure
- Dopamine-active drugs for Parkinson's disease
- Progestin for abnormal menstrual bleeding or birth control
- Sedatives for insomnia or anxiety
- Tricyclic antidepressants
SymptomsMore common symptoms are:
- Feeling that food is stuck behind the breastbone
- Heartburn or a burning pain in the chest (under the breastbone)
- Increased by bending, stooping, lying down, or eating
- More likely or worse at night
- Relieved by antacids
- Nausea after eating
- Bringing food back up (regurgitation)
- Cough or wheezing
- Difficulty swallowing
- Hoarseness or change in voice
- Sore throat
Signs and testsYou may not need any tests if your symptoms are not severe.
If your symptoms are severe or they come back after you have been treated, one or more tests may help diagnose reflux or any complications:
- Esophagogastroduodenoscopy (EGD) is often used to find the cause and examine the esophagus (swallowing tube) for damage. The doctor inserts a thin tube with a camera on the end through your mouth. The tube is then passed into your esophagus, stomach, and small intestine.
- Barium swallow
- Continuous esophageal pH monitoring
- Esophageal manometry
TreatmentYou can make many lifestyle changes to help treat your symptoms. Avoid foods that cause problems for you. Making changes to your routine before you go to sleep may also help.
See Gastroesophageal reflux - discharge for more on managing your symptoms at home.
Avoid drugs such as aspirin, ibuprofen (Advil, Motrin), or naproxen (Aleve, Naprosyn). Take acetaminophen (Tylenol) to relieve pain. Take your medicines with plenty of water. When your doctor gives you a new medicine, remember to ask whether it will make your heartburn worse.
You may use over-the-counter antacids after meals and at bedtime, although they do not last very long. Common side effects of antacids include diarrhea or constipation.
Other over-the-counter and prescription drugs can treat GERD. They work more slowly than antacids but give you longer relief. Your pharmacist, doctor, or nurse can tell you how to take these drugs.
- Proton pump inhibitors (PPIs) decrease the amount of acid produced in your stomach
- H2 blockers (antagonists) lower the amount of acid released in the stomach
There are also new therapies for reflux that can be performed through an endoscope (a flexible tube passed through the mouth into the stomach).
Expectations (prognosis)Most people respond to lifestyle changes and medications. However, many patients need to continue taking drugs to control their symptoms.
reference NCBI, Pub Med http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001311/