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Understanding Bloating and Distension

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Understanding Bloating and Distension International Foundation for Functional Gastrointestinal Disorders IFFGD Phone: 414-964-1799 700 W. Virginia St., #201 Toll-Free (In the U.S.): 888-964-2001 Milwaukee, WI 53204 Fax: 414-964-7176 Internet: www.iffgd.org (262) © Copyright 2013 by the International Foundation for Functional Gastrointestinal Disorders Understanding Bloating and Distension By: Max Schmulson, M.D. Professor of Medicine National Autonomous University of Mexico-UNAM Mexico City, Mexico IFFGD 700 W. Virginia St., #201 Milwaukee, WI 53204 Phone: 414-964-1799 Fax: 414-964-7176 www.iffgd.org Understanding Bloating and Distension By: Max Schmulson, M.D., Professor of Medicine, National Autonomous University of Mexico-UNAM, Mexico City, Mexico Bloating can be described as the feeling that there is an Possible reasons for bloating and distension include: inflated balloon in the abdomen. It is a commonly reported symptom and is sometimes associated with distension, or • Too much gas in the intestine the visible increase in the width of the area between your hips and chest (abdominal girth). • Abnormal levels of bacteria in the small intestine (Small Intestinal Bacterial Overgrowth – SIBO) Both bloating and distension cause discomfort, and sometimes pain, and have a • Imbalance of microorganisms negative impact on the quality of Frequency of reporting of abdominal bloating that usually live in the bowel life for some individuals. The in individuals with FGIDs (Dysbacteriosis); sometimes symptoms may be linked with • IBS: 23%-96% the result of taking antibiotics other gas related complaints, such • Functional dyspepsia: 50% as burping or belching • Chronic constipation: 56% • Food intolerance (eructation), swallowing air (aerophagia), and passing • Difficulty absorbing intestinal gas (flatulence). (malabsorption) carbohydrates from food, such as FODMAPs (Fermentable Oligosacharaides, Some people with functional gastrointestinal disorders Disaccharides, Monosacharides, and Polyols) (FGIDs) and motility disorders frequently experience bloating, distension, or both as symptoms of their • Increased perception and sensitivity to what is conditions. There is also something called functional happening in the digestive tract bloating, which is fullness and or/distension of the abdomen, not associated with changes in bowel • Increased curvature of the lumbar region of the spine movements. (lumbar lordosis), which decreases the capacity of the abdomen to hold gas Causes While researchers have proposed several different Treatment explanations for bloating and distension, there is no There is no universally effective treatment for bloating conclusive answer as to why the two symptoms occur. and distension. Treatment availabilities vary from country to country and there are many underlying possibilities as to what is causing the symptoms. However, despite the 2 fact that there isn’t an easy answer for bloating or Individuals can help their physicians by describing their distension, there are things that people can do with the complaints as accurately and concisely as possible. With help of their physicians to try and alleviate the symptoms. regard to bloating and distension, here are some important questions to ask and details to tell your health care Working with a Doctor provider (keeping track of the things that trigger your It is important to speak openly and honestly with your symptoms is a good way to discover the answers): physician to express a clear picture of your experiences and symptoms. FGIDs present special challenges when Things to Ask your Doctor: communicating, specifically because of their vague symptoms and sensitive subject matter. • Am I bloated? There isn’t a diagnostic test for bloating or distension; • Am I distended? however your doctor may run some tests to rule out underlying problems or associated disorders. • Am I both bloated and distended? These tests include: Things to Tell your Doctor: • Stool analysis • Is the symptom located in the upper or lower • Blood workup abdomen? Is it in a concentrated area? • Abdominal x-rays • Is your bloating or distension associated with burping? • Barium swallow • Do you experience nausea or vomiting? • Small transit follow through • Is the symptom associated with pain in your abdomen? Upper or lower? • Barium enema • Does the bloating or distension relate to passing gas or • Gastric emptying tests a change in your bowel habits (diarrhea, constipation, or alternation of both)? • Esophageal, antroduodenal, or anorectal manometry • Are your symptoms related to food? Which ones? • Colonic transit studies • Do they occur right after eating? • Breath test • Do your symptoms increase during the day or improve • Upper endoscopy during night hours? • Colonoscopy with biopsies Medications and other therapies Some medications and other treatments have been found Did you know that Spanish and some other to help ease the symptoms of bloating and distension. languages don’t have a word for “bloating”? Your doctor may talk to you about some of these options, depending on your symptoms and other health related People use the words “swelling” and considerations. “inflammation,” or describe it as “feeling Antispasmodics: These can relax the muscles of the bowel pregnant.” Using the balloon analogy can be and provide relief. Examples include dicyclomine (Bentyl) the most helpful. Let your doctor know exactly and hyoscyamine (Levsin) in the United States and whether you have the sensation of having a otilonium bromide or pinaverium bromide available in balloon in your abdomen (bloating), the truly Latin America and some countries in Europe and Asia and visible increase in your abdominal girth a combination of pinaverium bromide with simethicone (distension), or both. (Alevian Duo) in some Latin America countries. Probiotics: These dietary supplements contain live bacteria that help balance out the existing bacteria of the intestines. Some that include a relatively low level of 3 probiotic bacteria are available over the counter or in • Vegetables and legumes such as asparagus, bell yogurt varieties. Other options include Bifidobacterium peppers, broccoli, Brussels sprouts, cabbage, infantis 35624 for individuals with Irritable Bowel cauliflower, eggplant, onion, garlic, baked beans, Syndrome (IBS) in general, and Bifidobacterium animalis kidney beans, and lentils DN-0173 10 for patients with IBS with Constipation (IBS- C). • Sweeteners like sorbitol and maltitol (frequently used in gum and other candies) Rifaximin: This antibiotic is only slightly absorbed and can be used for short periods of time. Usually it is used For specific guidance regarding personal (off-label) to lessen bloating in people with IBS whose health questions, we advise consultation with symptoms do not include constipation, or in those with a qualified healthcare professional familiar small intestinal bacterial overgrowth. with your particular circumstances. Be sure to thoroughly discuss treatment options and the Prokinetics: These are medications that improve the time use of any medications for treatment with your it takes for food to travel through the digestive tract. Some prokinetics have been shown to improve bloating. A physician. When prescribed a medication, person’s age, health and other considerations must be disclose the use of all other drugs or taken into account for these therapies and availabilities supplements (whether prescription or over-the- vary from country to country. counter) with your physician. Antidepressants: These drugs affect receptors in the gut Conclusion and in the brain. Given in lower dosages than what is used Bloating and distension are both very common, for the to treat depression, they have been shown to help alleviate general population and for those with FGIDs and motility bloating and distension. For example, citalopram (Celexa), disorders. Either of the two may be very bothersome to an SSRI (Selective Serotonin Reuptake Inhibitor), has individuals that are experiencing the symptoms, as well as been shown to help improve bloating in individuals with challenging to those trying to treat them. There is not a IBS. Amitryptiline (Elavil), a tricyclic antidepressant, is conclusive cause for bloating or distension, nor is there a commonly used to treat pain and discomfort, as well as universally effective treatment. With the help of a diarrhea, and may be helpful for bloating. physician, individuals can find different treatment options that may help alleviate their symptoms. Other options: Medications that increase fluid content in stools, lubiprostone (Amitiza) or linaclotide (Linzess) for Suggested Reading example, may also be used. Current Pharmacologic Treatments of Irritable Bowel Psychological therapies: Treatments including Syndrome, IFFGD Fact Sheet No. 168 hypnotherapy and cognitive-behavioral therapy can be useful and help with symptoms and mood. Dietary Triggers for IBS Symptoms: The Low FODMAP Diet Approach, IFFGD Fact Sheet No. 251 Low FODMAP diet: Working with a doctor or registered dietitian to determine a diet low in FODMAPs is an option Gastrointestinal Motility Disorders of the Esophagus and for alleviating bloating and distension symptoms. Foods Stomach, IFFGD Brochure No. 510 that are rich in FODMAPs include: How to Prepare for Tests, IFFGD Fact Sheet No. 219 • Fruits such as What are FODMAPs? mangoes, Opinions expressed are an author’s own and not necessarily those of FODMAPs are short-chain the International Foundation for Functional Gastrointestinal Disorders apples, pears, carbohydrates that
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