• Overview

    Gastroesophageal reflux disease (GERD) is a disorder affecting the valve between the esophagus (swallowing tube) and the stomach that results in a reverse flow of the stomach's contents into the esophagus. Most people living with GERD suffer from indigestion, acid reflux or heartburn. Heartburn is a burning sensation in the central part of the chest region that can go right up into the throat.  The pain can be so bad as to feel like it is a heart attack.

    On average, 5 million Canadians experience heartburn and/or acid regurgitation at least once each week.  Twenty-five percent of pregnant women experience daily heartburn, and more than 50% have occasional distress. Recent studies show that GERD in infants and children is more common than previously thought. 

  • Guides

    Understanding GERD

    Gastroesophageal reflux disease (GERD) is a disorder affecting the valve between the esophagus (swallowing tube) and the stomach that results in a reverse flow of the stomach's contents into the esophagus. Most people living with GERD suffer from indigestion, acid reflux or heartburn.

    ► View Guide

  • Frequently Asked Questions

    Are the medications for GERD safe?

    The proton pump inhibitors have been used for over 30 years and have an excellent safety profile. Some people may experience problems with headaches, skin rash, diarrhea, and abnormal liver function studies  but these side effects are extremely rare.  Recently, there has been some suggestion that older individuals on long-term high dose, that is twice a day, proton pump inhibitors may have an increased bone fracture rate and, therefore, should be taking a calcium and vitamin D supplement.  However this has not been substantiated.

    Are there certain medical conditions associated with GERD?

    Being overweight is a definite aggravating factor for reflux by increasing intrabdominal pressure.

    Patients with long standing diabetes may develop decreased gastric emptying due to nerve injury to the stomach.  This can also occur after certain stomach surgeries.  Ulcers or cancers that block the stomach from emptying can cause reflux. Certain medications can contribute to reflux. Scleroderma is a rheumatological problem that can lead to reflux secondary to poor esophageal emptying and a decreased lower esophageal sphincter pressure.

    Can reflux cause cancer?

    5% to 8% of patients who have chronic reflux may develop a Barrett’s esophagus which results in a change in the normal esophageal mucosa to a type of lining that is more of an intestinal type. A gastroscopy with esophageal biopsies is the only definitive way to make this diagnosis of a Barrett’s esophagus.. There are no specific symptoms for Barrett’s esophagus and the risk of a cancer developing in the setting of a Barrett’s esophagus is very low.

    Do the medications for GERD cure acid reflux?

    The medications are very effective to treat reflux. However they do not cure the disease. The medications work to decrease the acid production by the stomach and once you stop the drugs the stomach returns to its normal ability to make acid. The symptoms of heartburn will therefore often recur after the medication is stopped. If altering lifestyle measures do not prevent the symptoms from recurring then individuals may require medication on a long term basis. This may include using it as necessary when symptoms recur. Some individuals need medication on a daily maintenance basis.

    Does having GERD for a long time put me at risk of other illnesses?

    Some people may experience problems from acid reflux in areas other than the esophagus. These are called extraesophageal symptoms.  Sometimes the acid can spill over into the throat region and vocal cords and cause problems with a voice change, hoarseness, sore throat, and lump-like feeling in the throat region. 

    If the acid spills into the lungs, it can cause problems with cough, asthma, or infections. These symptoms can be the primary problem of reflux and the person may not even complain of associated burning in the chest or throat region. Some people develop a condition known as Barrett's esophagus, which is severe damage to the cells lining the bottom of the esophagus. Doctors believe Barrett's esophagus may increase the chance of developing esophageal cancer.

    I am pregnant and am suffering from GERD. Is something wrong?

    It is very common during pregnancy for reflux to be a problem. The fetus increases the abdominal pressure and the hormones of pregnancy may decrease the lower esophageal sphincter pressure. Also If the stomach doesn’t empty because of a motility problem or a blockage then there is a greater risk for acid to reflux into the esophagus.

    I have GERD. Are there complications that I should be aware of before considering surgery?

    Complications can occur from surgery with 5-10% of patients. These include making the wrap too tight and developing problems swallowing one’s food, accidental injury to the spleen requiring removal of the spleen, post-operative hernia formation developing diarrhea, inability to burp and loosening of the wrap over time with recurrent reflux needing medication.

    I have GERD. When should I consider having surgery?

    There are some special circumstances where surgery may be of value for those having troublesome retrosternal burning and extraesophageal symptoms of cough, asthma, voice change and pulmonary infections inspite of a trial with at least a double dose of a proton pump inhibitor. It is important to confirm that there is increased acid present in the esophagus with a 24 hour pH test. Some people who regurgitate fluid that is very troublesome may benefit from surgery. There are some people who respond to the drugs but have side effects from the drugs, find them too expensive or simply don’t like taking medications. This group would benefit from surgery.

    People who continue to have symptoms even with a twice a day dose of a proton pump inhibitor and the 24 hour ph test is normal should look to be tested for other problems as this is not in keeping with acid reflux.

    I have heard about bacteria that can cause problems. Do these contribute to reflux?

    The bacterium is called Helicobacter pylori (H. pylori).  This is a common bacterium that infects the stomach and may cause about 10% of people with the bacterium to develop an ulcer.  As a rule, one does not look for H. pylori in the setting of reflux.

    Is there anything that can be done through the scope to treat reflux?

    There have been some endoscopic techniques that have been developed that can increase the lower esophageal sphincter pressure but presently they are more experimental and do not have a role in the treatment of reflux.

    What does it mean if I don’t get better with GERD medications?

    The medications we use to treat acid reflux are very effective. There is a very small percentage of people who continue to experience acid reflux even with the medications. However there is a group of patients who have symptoms suggestive of reflux and yet there is no increased acid present. These patients may be refluxing bile that is produced by the liver and pancreatic secretions from the pancreas. This is a very difficult diagnosis to make.  Medical treatment of this group may also be difficult and a foam barrier and prokinetic drugs may be helpful. Sometimes more than one drug may be necessary to threat this problem.  Some people may also experience hypersensitivity of the esophagus to normal amounts of acid or contractions of the esophageal wall. This is called visceral hypersensitivitiy. Stress may be a contributing factor to esophageal visceral hypersensitivity. A certain class of antidepressants called tricyclic antidepressants which alter the way the brain perceives painful stimuli may be of value in these situations.

    What is a hiatus hernia? Could this be causing my heartburn?

    Normally the esophagus is located above the diaphragm and the stomach is below the diaphragm. The lower esophageal sphincter lies at the level of the diaphragm in between the esophagus and stomach. The diaphragm is a muscle that separates the chest from the abdomen. A hiatus hernia occurs when a portion of the stomach adjacent to the esophagus pushes up thru the diaphragm and rests above the diaphragm in the chest region. A hiatus hernia is a common occurrence and often causes no problems. Many individuals have reflux and do not have a hiatus hernia. In some individuals it may contribute to reflux. The diaphragm squeezes on the sphincter when it is normally located at the level of the diaphragm and helps to increase the pressure in this region. When the sphincter is situated above the diaphragm in the setting of a hiatus hernia the diaphragm can no longer assist the effect of the lower esophageal sphincter pressure. Also sometimes acid can be trapped in the hiatus hernia and be a reservoir for acid to more readily reflux into the esophagus.

  • Related News

    Understanding and Treating GERD Video

    The Canadian Digestive Health Foundation launched a new video series on the "Importance of Screening for Colon Cancer" which aired on CTV's Women's Health with Dr. Marla Shapiro. This video provides viewers with insights from an individual who is living with GERD as well as expert commentary from leading gastroenterologist.

    Watch Video

    ► Read Full article ►

    No Need To Put Up With It

    There are some days you don't forget, no matter how long you live. For Shawn Richarz, 43, the first experience of digestive symptoms ranks as one of those indelible days. "It was shocking to me," says Richarz, a lawyer practicing in Cayuga, ON. Twenty years old at the time, Richarz remembers a "sharp burning pain rising from the middle of my chest area. It stopped me in my tracks."

    ► Read Full article ►

    Gastrointestinal Gas

    Gas in the gastrointestinal tract is normal. Passage of gas by belching or as flatus (gas per rectum) is normal. Gas in the digestive tract comes from two main sources - swallowed air and through the breakdown of certain undigested foods. Gas is produced by the breakdown of these foods by bacteria normally present in the large intestine. Swallowed air is a common cause of gas in the stomach. A small amount of air is swallowed with eating and drinking, particularly when eating or drinking quickly. Loose dentures, chewing gum and smoking also increase the amount of air swallowed.

    ► Read Full article ►
  • Videos

    Heartburn -- Understanding Its Causes and Treatments

    CDHF Co-Founder and Vice-President Dr. Richard Hunt helps us better understand the reasons why we suffer from heartburn and GERD (Gastroesophageal Reflux Disease) and strategies and treatment options that can bring relief from these conditions. 

    ► Watch Video

    Gi BodyGuard App Preview

    Gi BodyGuard, developed by experts at the Canadian Digestive Health Foundation, is a free, easy to use app that allows you to track information about your health, symptoms, medications, food and exercise. 

    ► Watch Video

    GERD with Dr. Richard Hunt

    At the 2012 CDHF Digestive Health Public Education Forum, Dr. Richard Hunt gave an interesting and educational presentation on acid reflux and Gastroesophageal Reflux Disease (GERD) to a capacity crowd.

    ► Watch Video


    Join Dr. David Armstrong for a step by step tour of a the upper portion of the gastrointestinal tract. Dr. Armstrong explains that gastroscopy is a safe and accurate test which uses a small camera (gastroscope) to look directly at the lining of the upper gastrointestinal tract, take biopsies, and even treat some conditions. In this video, you will learn how to prepare for a gastroscopy, see an actual procedure and learn how you can benefit from this test.

    ► Watch Video

    Understanding and Treating GERD

    Douglas Bryant blamed himself for his acid reflux but after visiting his doctor, he learned that by not taking action, he would continue to suffer and possibly put himself at risk of developing cancer. Dr. David Armstrong explains what Gastroesophageal Reflux Disease (GERD) is, how it can be treated and why seeking the advice of your physician is important.

    ► Watch Video

    Living with GERD: A gastroenterologist speaks about options

    Niki Travers has suffered with GERD for years. Like 5 million other Canadians living with GERD, her symptoms have affected her work, sleep, relationships and quality of life.  Dr. Richard Hunt  addresses the complications of GERD and speaks about safe therapeutic option.

    ► Watch Video

    Living Successfully with GERD

    Indigestion, heartburn and acid regurgitation are all symptoms of GERD (Gastroesophageal reflux disease). GERD can be painful, debilitating and frightening. Learn from Dr. David Armstrong and a patient living with the disease how to take control of their GERD - and life - with confidence and optimism.

    ► Watch Video

Charitable Registration # 889968269RR0001
About The CDHF

Contact Us
    Canadian Digestive Health Foundation
    2525 Old Bronte Road, Suite #455
    Oakville, ON L6M 4J2
    Tel: 905-847-2002

  • Contact