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20 May, 2019 00:00 00 AM

FAQ on Irritable Bowel Syndrome

Many things can trigger IBS symptoms, including certain foods, medicines, the presence of gas or stool, and emotional stress. You’ll need to learn what your triggers are. You may need to make some lifestyle changes and take medication.
WebMD Medical Reference
FAQ on Irritable Bowel Syndrome

IBS affects between 25 and 45 million Americans. Most of them are women. People are most likely to get the condition in their late teens to early 40s.

IBS is a mix of belly discomfort or pain and trouble with bowel habits: either going more or less often than normal (diarrhea or constipation) or having a different kind of stool (thin, hard, or soft and liquid).

It’s not life-threatening, and it doesn't make you more likely to get other colon conditions, such as ulcerative colitis, Crohn's disease, or colon cancer. But IBS can be a long-lasting problem that changes how you live your life. People with IBS may miss work or school more often, and they may feel less able to take part in daily activities. Some people may need to change their work setting: shifting to working at home, changing hours, or even not working at all.

What are the symptoms of IBS?

People with IBS have symptoms that can include:

Diarrhea (often described as violent episodes of diarrhea)

Constipation

Constipation alternating with diarrhea

Belly pains or cramps, usually in the lower half of the belly, that get worse after meals and feel better after a bowel movement

A lot of gas or bloating

Harder or looser stools than normal (pellets or flat ribbon stools)

A belly that sticks out

Stress can make symptoms worse.

Some people also have urinary symptoms or sexual problems.

There are four types of the condition. There is IBS with constipation (IBS-C) and IBS with diarrhea (IBS-D). Some people have an alternating pattern of constipation and diarrhea. This is called mixed IBS (IBS-M).  Other people don’t fit into these categories easily, called unsubtyped IBS, or IBS-U.

What are the causes?

While there are several things known to trigger IBS symptoms, experts don't know what causes the condition.

Studies suggest that the colon gets hypersensitive, overreacting to mild stimulation. Instead of slow, rhythmic muscle movements, the bowel muscles spasm. That can cause diarrhea or constipation.

Some think that IBS happens when the muscles in the bowels don't squeeze normally, which affects the movement of stool. But studies don’t seem to back this up.

Another theory suggests it may involve chemicals made by the body, such as serotonin and gastrin that control nerve signals between the brain and digestive tract.

Other researchers are studying to see if certain bacteria in the bowels can lead to the condition

Because IBS happens in women much more often than in men, some believe hormones may play a role. So far, studies haven’t borne this out.

How is it diagnosed?

There are no specific lab tests that can diagnose IBS. Your doctor will see if your symptoms match with the definition of IBS, and he may run tests to rule out conditions such as:

Food allergies or intolerances, such as lactose intolerance and poor dietary habits

Medications such as high blood pressure drugs, iron, and certain antacids

Infection

Enzyme deficiencies where the pancreas isn't releasing enough enzymes to properly digest or break down food

Inflammatory bowel diseases like ulcerative colitis or Crohn's disease

Your doctor may do some of the following tests to decide if you have IBS:

Flexible sigmoidoscopy or colonoscopy to look for signs of blockage or inflammation in your intestines

Upper endoscopy if you have heartburn or indigestion

X-rays

Blood tests to look for anemia (too few red blood cells), thyroid problems, and signs of infection

Stool tests for blood or infections

Tests for lactose intolerance, gluten allergy, or celiac disease

Tests to look for problems with your bowel muscles

How is IBS treated?

Nearly all people with IBS can get help, but no single treatment works for everyone. You and your doctor will need to work together to find the right treatment plan to manage your symptoms.

Many things can trigger IBS symptoms, including certain foods, medicines, the presence of gas or stool, and emotional stress. You’ll need to learn what your triggers are. You may need to make some lifestyle changes and take medication.

Diet and lifestyle changes

Usually, with a few basic changes in diet and activities, IBS will improve over time. Here are some tips to help reduce symptoms:

Avoid caffeine (in coffee, teas, and sodas).

Add more fiber to your diet with foods like fruits, vegetables, whole grains, and nuts.

Drink at least three to four glasses of water per day.

Don't smoke.

Learn to relax, either by getting more exercise or by reducing stress in your life.

Limit how much milk or cheese you eat.

Eat smaller meals more often instead of big meals.

Keep a record of the foods you eat so you can figure out which foods bring on bouts of IBS.

Common food "triggers" are red peppers, green onions, red wine, wheat, and cow's milk. If you're concerned about getting enough calcium, you can try to get it from other foods, like broccoli, spinach, turnip greens, tofu, yogurt, sardines, salmon with bones, calcium-fortified orange juice and breads, or calcium supplements.

Medications

The following types of drugs are used to treat IBS:

Bulking agents, such as psyllium, wheat bran, and corn fiber, help slow the movement of food through the digestive system and may also help relieve symptoms.

Antibiotics such as rifaximin (Xifaxan) can change the amount of bacteria in your intestines. You take pills for 2 weeks. It can control symptoms for as long as 6 months. If they come back, you can be treated again.)

Abdonimal pain and bloating

Antispasmodics can control colon muscle spasms, but experts are unsure that these drugs help. They also have side effects, such as making you drowsy and constipated, that make them a bad choice for some people.

Antidepressants may also help relieve symptoms in some people.

Probiotics, which are  live bacteria and yeasts that are good for your health, especially your digestive system. Doctors often suggest them to help with digestive problems.

Constipation

Polyethylene glycol (PEG) , is an osmotic laxative and causes water to remain in the stool, which results in softer stools. This medication may work best for those who can't tolerate dietary fiber supplements.

Linaclotide (Linzess) is a capsule you take once daily on an empty stomach, at least 30 minutes before your first meal of the day. It helps to relieve constipation by helping bowel movements happen more often. It’s not for anyone 17 years old or younger. The drug's most common side effect is diarrhea.

Lubiprostone (Amitiza) can treat IBS with constipation in women when other treatments have not helped. Studies haven’t fully shown that it works well in men. Common side effects include nausea, diarrhea, and belly pain. More serious side effects may include, fainting, swelling of the arms and legs, breathing problems, and heart palpitations.

Plecanatide (Trulance) has been shown to treat constipation without the usual side effects of cramping and abdominal pain. The once a day pill can be taken with or without food. It works to increase gastrointestinal fluid in your gut and encourage regular bowel movements.

Diarrhoea

Loperamide (Imodium) works by slowing down the movement of the gut. This decreases the number of bowel movements and makes the stool less watery.

Bile acid sequestrants are cholesterol-lowering medications. Taken orally, they work in the intestines by binding bile acids and reducing stool production.

Alosetron (Lotronex) can help relieve stomach pain and slow your bowels to relieve diarrhea, but there can be serious side effects, so it’s only to be used by women with severe IBS-D whose symptoms aren’t helped by other treatments.

Eluxadoline (Viberzi) is prescribed to help reduce bowel contractions, belly cramps, and diarrhea.

Make sure to follow your doctor's instructions when taking IBS medications, including laxatives, which can be habit forming if you don’t use them carefully.

 

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Editor : M. Shamsur Rahman

Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.

Editor : M. Shamsur Rahman
Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.

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