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Ulcerative colitis

Highlights

Ulcerative Colitis

Ulcerative colitis and Crohn's disease are inflammatory bowel diseases that cause chronic inflammation in the digestive system. Ulcerative colitis occurs only in the inner lining of the large intestine (colon) and rectum whereas Crohn's disease extends into deeper areas of the intestinal wall and can affect any part of the gastrointestinal tract (digestive system).

Causes and Risk Factors

The exact causes of ulcerative colitis are unknown.

  • Genetics plays some role. Many people with ulcerative colitis have family members with the disease.
  • Ulcerative colitis is diagnosed most often in people ages 15 - 35.
  • Ulcerative colitis is more common among whites than people of other races. Jewish people of Eastern European (Ashkenazi) descent have a higher than average risk for developing this disease.

Symptoms

The symptoms of ulcerative colitis depend in part on how widespread the disease is and the severity of the inflammation. Common symptoms include:

  • Diarrhea
  • Rectal bleeding
  • Difficulty or pain when passing stool
  • Abdominal cramps

Prognosis

About half of patients with ulcerative have mild symptoms while another half go on to develop more severe forms of the disease. Some patients go into remission after a single attack, while others develop a chronic condition.

Treatment

The only cure for ulcerative colitis is surgical removal of the colon, but medications and dietary measures can help suppress the inflammatory response and control symptoms. Drugs used to treat ulcerative colitis include aminosalicylates (5-ASAs), corticosteroids, immunosuppressants, and biologic drugs. Some patients with ulcerative colitis are not helped by drugs and require surgical treatment.

Drug Approval

In 2013, the Food and Drug Administration (FDA) approved golimumab (Simponi) to treat moderate-to-severe ulcerative colitis that has not been helped by other drugs. Golimumab is the third biologic drug approved as maintenance therapy for ulcerative colitis. Like adalimumab (Humira) and infliximab (Remicade), golimumab blocks tumor necrosis factor (TNF), a protein involved in the inflammatory process. Golimumab is given by self-injection once a month. Like all TNF blockers, golimumab can increase the risk for serious infections.

Introduction

Inflammatory bowel disease (IBD) is a general term that includes two main disorders:

  • Ulcerative colitis
  • Crohn's disease

These two diseases are related, but they are considered separate disorders with somewhat different treatment options. The basic distinctions between UC and CD are location and severity. However,  some patients with early-stage IBD have features and symptoms of both disorders. (This is called indeterminate colitis.)

Inflammatory bowel disease
Crohn's disease, also called regional enteritis, is a chronic inflammation of the intestines that is usually more pronounced in the ileum, the lower end of the small intestine. Ulcerative colitis is a similar inflammation of the colon, or large intestine. These and other inflammatory bowel diseases have been linked with an increased risk of colorectal cancer.

Ulcerative Colitis. Ulcerative colitis occurs only in the top layer of the large intestine (colon) and rectum. Ulcers form in the inner lining, or mucosa, of the colon or rectum, causing diarrhea, which may be accompanied by blood and pus.

Ulcerative colitis is classified into different categories depending on the location of the disease. The four main types of ulcerative colitis are:


 Click the icon to see an image of the structure of the colon. 
  • Proctitis. Disease confined to the rectum (the lower part of the colon that connects with the anus). In about a third of patients, ulcerative colitis begins with ulcerative proctitis.
  • Proctosigmoiditis. Disease that affects the rectum and the sigmoid colon (the lower part of the colon located above the rectum).
  • Left-Sided Colitis. Disease that causes continuous inflammation throughout the left side of the colon from the rectum to the area near the spleen.
  • Pancolitis. Disease and inflammation throughout the entire colon.
 

   See the icon to see an image of the types of ulcerative colitis. 

Crohn's Disease. Crohn's disease can occur in any part of the gastrointestinal tract (digestive system) from the mouth to the anus. The inflammation associated with Crohn’s disease affects all layers of the intestine and can extend into the deep layers of the intestinal wall.

The Gastrointestinal Tract

The gastrointestinal (GI) tract (the digestive system) is a tube that extends from the mouth to the anus. It is a complex organ system that first carries food from the mouth down the esophagus to the stomach and then through the small and large intestine to be excreted through the rectum and anus.

Esophagus. The esophagus, commonly called the food pipe, is a narrow muscular tube, about 9 1/2 inches long that begins below the tongue and ends at the stomach.

Stomach. In the stomach, acids and stomach motion break food down into particles small enough so that nutrients can be absorbed by the small intestine.

Small Intestine. The small intestine, despite its name, is the longest part of the gastrointestinal tract and is about 20 feet long. Food that passes from the stomach into the small intestine first passes through three parts:

  • First it enters the duodenum
  • Then the jejunum, and
  • Finally the ileum

Most of the digestive process occurs in the small intestine.

Large Intestine. Undigested material, such as plant fiber, is passed next to the large intestine, or colon, mostly in liquid form. The colon is wider than the small intestine but only about 6 feet long. The colon absorbs excess water and salts into the blood. The remaining waste matter is converted to feces through bacterial action. The colon is a continuous structure but it is characterized as having several components

Cecum and Appendix. The cecum is the first part of the colon and it gives rise to the appendix. These structures are located in the lower-right quadrant of the abdomen. The colon continues onward in several sections:

  • The first section, the ascending colon, extends upward from the cecum on the right side of the abdomen.
  • The second section, the transverse colon, crosses the upper abdomen to the left side.
  • The third section extends downward on the left side of the abdomen toward the pelvis and is called the descending colon.
  • The final section is the sigmoid colon.

Rectum and Anus. Feces are stored in the descending and sigmoid colon until they pass through the rectum and anus. The rectum extends through the pelvis from the end of the sigmoid colon to the anus.

 

   Click the icon to see an image of the digestive system.  

   Click the icon to see an image of the stomach.  

   Click the icon to see an image of the small intestine. 

   Click the icon to see an image of the large intestine. 

Causes

Doctors do not know exactly what causes inflammatory bowel disease. IBD appears to be due to an interaction of many complex factors including genetics, impaired immune system response, and environmental triggers. The result is an abnormal immune system reaction, which in turn causes an inflammatory response in the body’s intestinal regions. Ulcerative colitis and Crohn’s disease, like other IBDs, are considered autoimmune disorders.

The Inflammatory Response

An inflammatory response occurs when the body tries to protect itself from what it perceives as invasion by a foreign substance (antigen). Antigens may be viruses, bacteria, or other harmful substances.

In Crohn’s disease and ulcerative colitis, the body mistakenly targets harmless substances (food, beneficial bacteria, or the intestinal tissue itself) as harmful. To fight infection, the body releases various chemicals and white blood cells, which in turn produce byproducts that cause chronic inflammation in the intestinal lining. Over time, the inflammation damages and permanently changes the intestinal lining.

Genetic Factors

Although the exact causes of inflammatory bowel disease are not yet known, genetic factors certainly play some role. Between 10 - 20% of people with ulcerative colitis have family members with the disease. Several identified genes and chromosome locations play a role in the development of ulcerative colitis, Crohn's disease, or both. Genetic factors appear to be more important in Crohn's disease, although there is evidence that both conditions have some genetic defects in common.

Environmental Factors

Inflammatory bowel disease is much more common in industrialized nations, urban areas, and northern geographical latitudes. It is not clear how or why these factors increase the risk for IBD.

It could be that “Western” lifestyle factors (smoking, exercise, diets high in fat and sugar, stress) play some role. However, there is no strong evidence that diet or stress cause Crohn’s disease or ulcerative colitis, although they can aggravate the conditions.

Risk Factors

About 1 million Americans suffer from inflammatory bowel disease (IBD), and about half of these patients have ulcerative colitis. There are several risk factors for ulcerative colitis.

Age

Ulcerative colitis can occur at any age, but it is most often diagnosed in people ages 15 - 35 and, less commonly, in people ages 50 - 75.

Gender

Men and women are equally at risk for developing ulcerative colitis.

Family History

Ulcerative colitis tends to run in families. People who have a first-degree relative (father, mother, brother, sister) with ulcerative colitis have a significantly greater risk for developing the disorder. .

Race and Ethnicity

Crohn’s disease and ulcerative colitis are more common among whites. Jews of Eastern European (Ashkenazi) descent are at especially high risk. However, rates of inflammatory bowel disease have been increasing among other racial and ethnic groups.

Smoking

Smoking appears to decrease the risk of developing ulcerative colitis. (Because of the hazards of smoking, however, it should never be used to protect against ulcerative colitis.) Conversely, smoking increases the risk of developing Crohn's disease, and can worsen the course of the disease.

Appendectomy

Removal of the appendix (appendectomy) may possibly reduce the risk for developing ulcerative colitis, but increase the risk for Crohn’s disease.

Symptoms

The two major inflammatory bowel diseases, ulcerative colitis and Crohn's disease, share certain characteristics:

  • Symptoms usually appear in young adults.
  • Symptoms can develop gradually or have a sudden onset.
  • Ulcerative colitis and Crohn’s disease are chronic conditions. In both diseases, patients experience sporadic episodes of symptom flare ups (relapse) in between symptom-free periods (remission)
  • Symptoms can be mild or very severe. Severe symptoms can lead to complications.

Common Symptoms

The symptoms of ulcerative colitis depend in part on how widespread the disease is and the severity of the inflammation. Common symptoms include:

  • Diarrhea
  • Rectal bleeding and bloody stool
  • Difficulty or pain when passing stool
  • Abdominal cramps

Other symptoms may include:

  • Fever
  • Nausea
  • Loss of appetite and weight loss
  • Fatigue

Non-Intestinal Symptoms

The inflammation associated with inflammatory bowel disease (IBD) can cause symptoms outside of the gastrointestinal tract.

Joints. Arthritis is the most common non-intenstinal symptom of inflammatory bowel disease.

Skin Disorders. There are many types of skin problems associated with IBD. They often tend to appear during disease flare-ups and resolve when symptoms are controlled. Cankar sores (mouth ulcers) are very common. Skin disorders that tend to be seen more with ulcerative colitis than Crohn’s disease include red knot-like swellings (erythema nodosum) and pus-filled skin ulcers on the shins and ankles (pyoderma gangrenosum).

Eyes. Inflammatory bowel disease is sometimes associated with various eye problems. A common complication is inflammation in the pigmented part of the eye, a condition called uveitis.

Prognosis

About half of patients with ulcerative colitis have mild symptoms while another half go on to develop more severe forms of the disease. Patients with more severe ulcerative colitis tend to respond less well to medications.

The course of ulcerative colitis is unpredictable. Some patients go into remission after a single attack, while others develop a chronic condition. There is no cure for ulcerative colitis (aside from surgical removal of the colon), but medications can help suppress the inflammatory response and control symptoms.

Complications

Complications in the Intestine

Malabsorption and Malnutrition. Malabsorption is the inability of the intestines to absorb nutrients. In IBD, this occurs as a result of bleeding and diarrhea, as a side effect from some of the medications, and as a result of surgery. Malnutrition may occur in ulcerative colitis, but it tends to be less severe than with Crohn’s disease.

Toxic Megacolon. Toxic megacolon is a serious complication that can occur if inflammation spreads into the deeper layers of the colon. In such cases, the colon enlarges and becomes paralyzed. In severe cases, it may rupture, which is a life-threatening event requiring emergency surgery. Symptoms include weakness and abdominal pain and bloating.

Toxic megacolon
Toxic megacolon is characterized by extreme inflammation and distention of the colon. Common symptoms are pain, distention of the abdomen, fever, rapid heart rate, and dehydration. This is a life-threatening complication that requires immediate treatment, usually surgical removal of the colon.

Bleeding and Anemia. Rectal bleeding due to ulcers in the colon is a common complication of ulcerative colitis. It can increase the risk for anemia (reduced red blood cell count). In some cases, internal bleeding can be massive and dangerous, requiring surgery.

Intestinal Infections. Inflammatory bowel disease can increase patients’ susceptibility to Clostridium difficile, a species of intestinal bacteria that causes severe diarrhea. It is usually acquired in a hospital. However, several recent studies indicate that C. difficile is increasing among patients with inflammatory bowel disease and that many patients acquire this infection outside of the hospital setting. Patients with ulcerative colitis are at particularly high risk.

Colorectal Cancers. Inflammatory bowel disease increases the risk for colorectal cancer. The risk is highest for patients who have had the disease for at least 8 years or who have extensive areas of colon involvement. The more severe the disease, and the more it has spread throughout the colon, the higher the risk. Having a family history of colorectal cancer also increases risk. If you have an IBD, discuss with your doctor how often you should have a colonoscopy (screening test for colorectal cancer).

Most experts or guidelines recommend that patients receive an initial colonoscopy earlier than people with no risk factors for colon cancer and then have follow-up colonoscopies based on risk factors. Some of these risk factors include severity of ulcerative colitis disease, family history of colorectal cancer, presence of primary sclerosing cholangitis, personal history of abnormal biopsies (dysplasia) in the colon, and presence of colonic strictures.

 

 Click the icon to see an image of the colonoscopy procedure. 

Complications Outside the Intestine

Bones. Ulcerative colitis, and the corticosteroid and other immune-suppressing drugs used to treat it, can cause osteopenia (low bone density) and osteoporosis (bone loss). Osteoporosis is more common with Crohn’s disease than with ulcerative colitis.

 

 Click the icon to see an image of osteoporosis. 

Liver and Gallbladder Disorders. In severe cases, IBD can cause problems with the liver and pancreas and increase the risk for gallstones.

Thromboembolism (Blood Clots). People with inflammatory bowel disease are at higher risk for blood clots, especially deep venous thrombosis where blood clots form in the legs. They are also at risk for pulmonary embolism, when a blood clot travels from the legs to the lungs.

 

 Click the icon to see an image depicting a thrombus. 

Urinary Tract and Kidney Disorders. IBD may increase the risk for urinary tract and bladder infections. Patients have an increased risk for kidney stones.

 

 Click the icon to see an image of kidney stones. 

Delayed Growth and Development in Children. Children with ulcerative colitis are at slightly higher than average risk for delayed growth, but their risk is lower than with Crohn's disease.

Emotional Factors. Living with ulcerative colitis can pose many emotional challenges. Patients often deal with feelings of frustration, humiliation, and loss of control. Adolescents may have a particularly difficult time coping with this chronic condition. Although inflammatory bowel disease symptoms can be emotionally stressful, and symptom flare ups are sometimes associated with stressful life events, there is no evidence that stress or psychological factors cause IBD.

Diagnosis

There is no definitive diagnostic test for ulcerative colitis. A doctor will diagnose ulcerative colitis based on medical history and physical examination, and the results of laboratory, imaging, and endoscopic tests, which usually include biopsies of colon tissue.

Laboratory Tests

Blood and stool tests may be used:

  • Blood tests are used for various purposes, including to determine the presence of anemia (low red blood cell count). An increased number of white blood cells or elevated levels of inflammatory markers such as C-reactive protein may indicate the presence of inflammation.
  • A stool sample may be taken and examined for blood, infectious organisms, or both.

Endoscopy

Flexible Sigmoidoscopy and Colonoscopy. Flexible sigmoidoscopy and colonoscopy are standard endoscopic procedures for diagnosing ulcerative colitis. They are important in the diagnosis of both ulcerative colitis and Crohn's disease. Both procedures involve snaking a fiber-optic tube called an endoscope through the rectum to view the lining of the colon:

  • Sigmoidoscopy, which is used to examine the rectum and left (sigmoid) colon, lasts about 10 minutes and is done without sedation. It may be mildly uncomfortable, but it is not painful. If sigmoidoscopy indicates ulcerative colitis, the doctor may order a colonoscopy to confirm the diagnosis and to identify how much of the colon is involved.
  • Colonoscopy allows a view of the entire colon and requires a sedative, but it is still a painless procedure performed on an outpatient basis. A colonoscopy is also used to screen for colon cancer.

During these procedures the doctor can insert instruments through the endoscope to remove tiny tissue samples (biopsies). A pathologist will view the tissue sample under a microscope to look for signs of inflammation. These procedures can help a doctor to distinguish between ulcerative colitis and Crohn's disease, as well as other diseases. Patients diagnosed with ulcerative colitis may also need periodic endoscopies to evaluate their condition when symptoms flare up.

Barium Enema X-Ray

Sigmoidoscopy and colonoscopy are standard tests for diagnosing ulcerative colitis, but in some cases the doctor may order a double-contrast barium enema Swallowed barium passes into the small intestine and shows up on an x-ray image, which may reveal inflammation and other abnormalities.

Barium enema
A barium enema is a long-established diagnostic tool that helps detect abnormalities in the large intestine (colon). A barium enema, along with colonoscopy, remains useful in the diagnosis of colon cancer, ulcerative colitis, and other diseases of the colon, but endoscopy is more accurate and informative.

Ruling out Diseases Resembling Ulcerative Colitis

Crohn's Disease. Diarrhea associated with ulcerative colitis tends to be more severe than diarrhea caused by Crohn’s disease. Abdominal pain is more constant with Crohn’s disease than with ulcerative colitis. Fistulas (tracts between areas of the intestine or between the intestine and other organs) and strictures (scarring) are common with Crohn’s disease but very rare with ulcerative colitis. Endoscopy and imaging tests reveal more extensive involvement through the entire gastrointestinal tract with Crohn’s disease than with ulcerative colitis. Ulcerative colitis only occurs in the colon and rectum.

Irritable Bowel Syndrome. Irritable bowel syndrome (IBS), also known as spastic colon, functional bowel disease, and spastic colitis, may cause some of the same symptoms as inflammatory bowel disease (IBD). Bloating, diarrhea, constipation, and abdominal cramps are all symptoms of IBS. However, IBS is not the same as IBD. Irritable bowel syndrome is not caused by inflammation.. Behavioral therapy may be helpful in treating IBS. (Psychological therapy does not improve inflammatory bowel disease.)

Infectious Colitis. Infectious colitis appears very rapidly and painfully. Organisms can be identified in stool samples.

Intestinal Ischemia (Ischemic Colitis). Symptoms similar to irritable bowel syndrome can be caused by blockage of blood flow in the intestine. This is more likely to occur in elderly people.

Celiac Sprue. Celiac sprue, or celiac disease, is an intolerance to gluten (found in wheat) that triggers inflammation in the small intestine and causes diarrhea, vitamin deficiencies, and stool abnormalities. It occurs in some people with inflammatory bowel disease (IBD) and is usually first noticed in children.

 

 Click the icon to see foods to avoid when  you have celiac sprue. 

Acute Appendicitis. Crohn's disease may cause tenderness in the right lower part of the abdomen, where the appendix is located, that resembles appendicitis.

Cancer. Colon or rectal cancers must always be ruled out when symptoms of IBD occur.

Treatment

Ulcerative colitis is a chronic condition marked by variable periods of no symptoms (remission) and active symptoms (flare-ups). Treatment can help suppress the inflammatory response and manage symptoms. A treatment plan for ulcerative colitis includes:

  • Diet and nutrition
  • Medications
  • Surgery (when necessary)

Diet and Nutrition

Malnutrition may occur in ulcerative colitis, although it tends to be less severe than with Crohn’s disease. Patients with ulcerative colitis may experience reduced appetite and weight loss.

Patients should strive to eat a well-balanced healthy diet and focus on getting enough calories, protein, and essential nutrients from a variety of food groups. These include protein sources such as meat, chicken, fish or soy; dairy products such as milk, yogurt, and cheese (if the patient is not lactose-intolerant); and fruits and vegetables. Depending on your nutritional status, your doctor may recommend that you take a multivitamin or iron supplement.

Medications

Drug therapy for ulcerative colitis aims to resolve symptoms (induce remission) and prevent flare-ups (maintain remission). The main types of drugs used for treating ulcerative colitis are:

  • Aminosalicylates. Mild-to-moderate ulcerative colitis is usually treated with aspirin-like medications called aminosalicylates, or 5-ASAs. These drugs are also used to treat relapses. They may be administered rectally in patients who have mild-to-moderate disease that occurs only in the last portion of the intestine. They may also be taken by mouth.
  • Corticosteroids. Corticosteroids (steroids) may be added or used alone to reduce acute inflammation. (Because of their significant side effects, they are not recommended for long-term use and maintenance therapy). Steroids may be administered rectally as an alternative to an aminosalicylate if the disease is limited to the last portion of the intestine. Pill forms taken by mouth may treat moderate-to-severe cases. People who do not respond to less aggressive treatments may need intravenous steroids.
  • Immunosuppressants. Drugs that suppress the immune system (immunosuppressants) are useful, either alone or in combinations, for disease that does not respond to other treatments or for maintenance of remissions.
  • Biologic Drugs. Biologic drugs used for ulcerative colitis target and block tumor necrosis factor (TNF), a specific protein involved with the inflammatory response.

Drug therapy is considered successful if it can push the disease into remission (and keep it there) without causing significant side effects. The patient's condition is generally considered in remission when the intestinal lining has healed and symptoms such as diarrhea, abdominal cramps, and tenesmus (straining painfully to defecate) are normal or close to normal.

Other types of drugs may also be used to treat specific conditions and symptoms associated with ulcerative colitis. Anti-diarrheal medications such as loperamide (Imodium, generic) may be given to help control diarrhea.

Surgery

Drugs do not help about 25 - 40% of patients with ulcerative colitis. As a result, these people need surgical treatment. Surgery may also be necessary because of hemorrhage, perforation of the colon, or toxic megacolon.

Total proctocolectomy with ileal pouch anal anastomosis (IPAA), also known as restorative proctolectomy, and total proctocolectomy with ileostomy are the two definitive surgical approaches for widespread ulcerative colitis that cannot be controlled with medications. Other patients may have a colectomy (resection of a portion of the colon) for more limited disease.

Unlike Crohn’s disease, which can recur after bowel resection, ulcerative colitis does not recur after total proctocolectomy. Total proctocolectomy is considered a cure for ulcerative colitis. (See Surgery section for more detailed information.)

Medications

Aminosalicylates

Aminosalicylates contain the compound 5-aminosalicylic acid, or 5-ASA, which helps reduce inflammation. These drugs are used to prevent relapses and maintain remission in mild-to-moderate ulcerative colitis.

The standard aminosalicylate drug is sulfasalazine (Azulfidine, generic). This drug combines the 5-ASA drug mesalamine with sulfapyridine, a sulfa antibiotic. While sulfasalazine is inexpensive and effective, the sulfa component of the drug can cause unpleasant side effects, including headache, nausea, and rash.

Patients who cannot tolerate sulfasalazine or who are allergic to sulfa drugs have other options for aminosalicylate drugs, including mesalamine (Asacol, Pentasa, Lialda, Delzicol, generic), olsalazine (Dipentum), and balsalazide (Colazal, generic). These drugs, like sulfasalazine, are taken as pills several times a day. Lialda is a once-daily mesalamine pill for patients with ulcerative colitis. Mesalamine is also available in enema (Rowasa, generic) and suppository (Canasa, generic) forms.

Common side effects of aminosalicylate drugs include:

  • Abdominal pain and cramps (mesalamine, balsalazide)
  • Diarrhea (mesalamine, olsalazine)
  • Gas (mesalamine)
  • Nausea (mesalamine)
  • Hair loss (mesalamine)
  • Headache (mesalamine, balsalazide)
  • Dizziness (mesalamine)

Mesalamine can cause kidney problems and should be used with caution by patients with kidney disease. All mesalamine preparations, including sulfasalazine, appear to be safe for children, and for women who are pregnant or nursing.

Corticosteroids

Corticosteroids (commonly called steroids) are powerful anti-inflammatory drugs. They are used only for active ulcerative colitis. Steroids are frequently combined with other drugs to produce more rapid symptom relief and to allow quicker withdrawal, although such combinations do not improve remission time. Because the oral form has serious long-term effects, they are not useful for maintenance therapy. Patients who have a poor response to steroids are also less likely to do well with repeat therapy.

Corticosteroid Types. Prednisone (Deltasone, generic), methylprednisolone (Medrol, generic), and hydrocortisone (Cortef, generic) are the most common oral corticosteroids. Newer steroids, such as budesonide (Entocort), are given via enema and affect only local areas in the intestine and do not circulate throughout the body. Such drugs may avoid the widespread side effects that are a serious problem with long-term treatment using older conventional steroids. They are only helpful for milder ulcerative colitis involving the rectum and sigmoid colon.

Administering Corticosteroids. Most corticosteroids can be taken as a pill. For patients who cannot take oral forms, methylprednisolone and hydrocortisone may also be given intravenously or rectally as a suppository, enema, or foam. The severity or location of the condition often determines the form.

Side Effects of Corticosteroids. Oral steroids can have distressing and sometimes serious long-term side effects, including:

  • Susceptibility to infection
  • Weight gain (particularly increased fatty tissue on the face and upper trunk and back)
  • Acne
  • Excess hair growth
  • High blood pressure (hypertension)
  • Weakened bones (osteoporosis)
  • Cataracts and glaucoma
  • Diabetes
  • Muscle wasting
  • Menstrual irregularities
  • Upper gastrointestinal ulcers
  • Personality change, including irritability, insomnia, depression, and psychosis

Withdrawing from Corticosteroids. Once the intestinal inflammation has subsided, steroids must be withdrawn very gradually. Withdrawal symptoms, including fever, malaise, and joint pain, may occur if the dosage is lowered too rapidly. If this happens, the dosage is increased slightly and maintained until symptoms are gone. More gradual withdrawal is then resumed.

Immunosuppressive Drugs

Immunosuppressant drugs are used for long-term therapy, especially for very active inflammatory bowel disease that does not respond to milder treatments. Such drugs suppress or limit actions of the immune system and therefore the inflammatory response that causes ulcerative colitis. Immunosuppressants can prevent relapse, even when used alone, and they can help maintain remissions of ulcerative colitis for several years.

Azathioprine (Imuran, Azasan, generic) and mercaptopurine ([6-MP], Purinethol, generic) are the standard oral immunosuppressant drugs. However, it can take 3 - 6 months for these drugs to have an effect. To speed up the response, they are sometimes prescribed along with a corticosteroid drug. Lower steroid doses are then needed, resulting in fewer side effects. Corticosteroids may also be withdrawn more quickly. For this reason, immunosuppressants are sometimes referred to as steroid-sparing drugs.

Other pill forms of immunosuppressants include cyclosporine A (Sandimmune, Neoral) and tracrolimus (Prograf). Cyclosporine A is also given intravenously to patients with severe ulcerative colitis. These drugs are quicker-acting than azathiopine and 6-mercaptopurine. Cyclosporine A generally takes 1 - 2 weeks to take effect. Methotrexate (MTX, Rheumatrex) is another fast-acting type of injectable immunosuppressant that is effective for Crohn’s disease but not for ulcerative colitis. Antibiotics, which are used to treat Crohn's disease, are also not helpful for ulcerative colitis.

General side effects of immunosuppressants may include nausea, vomiting, and liver or pancreatic inflammation. Patients should receive frequent blood tests to monitor bone marrow, liver, and kidneys. Patients who take cyclosporine A or tacrolimus need to have their blood pressure and kidney function checked regularly. Children and young adults who take azathioprine or mercaptopurine should be monitored for signs of cancer as these drugs have been associated with increased risk of an aggressive form of T-cell lymphoma. Immunosuppressants are usually not recommended for women who are pregnant or breast-feeding.

Biologic Drugs

Biologic response modifiers are genetically engineered drugs that target specific proteins involved with the body’s inflammatory response. Three biologic drugs are approved for treatment of moderate-to-severe ulcerative colitis in patients who have not responded to other drugs:

  • Infliximab (Remicade), which is given by intravenous infusion in a doctor’s office or hospital clinic (after the first three doses, the drug is administered every 8 weeks)
  • Adalimumab (Humira), which you can give by injection at home (after the first two doses, you give yourself an injection every other week)
  • Golimumab (Simponi) is given by self-injection at home once a month

Infliximab, adalimumab, and golimumab  target and block an inflammatory immune factor known as tumor necrosis factor (TNF). These drugs are described as anti-TNF drugs, TNF blockers, or TNF inhibitors. Studies indicate that anti-TNF drugs may reduce ulcerative colitis symptoms and help patients achieve and maintain remission.

Common side effects of TNF inhibitors include respiratory infections (sinus infections and sore throat), headache, rash, cough, and stomach pain. All anti-TNF drugs can potentially cause serious severe side effects, including increased susceptibility to viral, fungal, and bacterial infections (including tuberculosis).

Your doctor should carefully monitor you for any signs of infection. Symptoms of fungal infections include fever, malaise, weight loss, sweating, cough, and shortness of breath. If you experience any of these symptoms, contact your doctor.

Anti-TNF drugs can increase the risk for cancer, particularly lymphomas, in children and adolescents. They can also increase the risk for leukemia in patients of all ages. Other severe side effects may include psoriasis, heart failure, liver failure, aplastic anemia, nervous system disorders, and allergic reactions.

Investigational Drugs. Vendolizumab (Entyvio) is a new biologic drug that is being investigated for treatment of moderate-to-severe ulcerative colitis and Crohn’s disease. The FDA  is considering this drug for approval in 2014. In clinical trials, the drug was particularly effective for ulcerative colitis.

Surgery

Proctocolectomy and Ileoanal Anastomosis

Proctocolectomy is removal of the entire colon, including the lower part of the rectum and the sphincter muscles that control bowel movements. It can achieve a complete cure, but it is a last resort.

Ileostomy. In some proctocolectomies, the surgeon creates an opening in the abdominal wall (called a stoma) to allow passage of waste material. This part of the procedure is referred to as an ileostomy, and the stoma is created in the lower right corner of the abdomen. The surgeon then connects cut ends of the small intestine to this opening. An ostomy bag is placed over the opening and accumulates waste matter. It requires emptying several times a day.

Ileoanal Anastomosis. Ileal pouch anal anastomosis (IPAA), also simply called ileoanal anastomosis, has now largely replaced ileostomy because it preserves part of the anus and allows for more normal bowel movements. The procedure creates a natural pouch to collect waste, rather than using an ileostomy bag. The standard procedure involves:

  • The colon is removed as in proctocolectomy, but the surgeon only strips the superficial diseased inner layer of the rectum, leaving the sphincter muscles intact.
  • The anus is then attached to the ileum (the final portion of the small intestine leading to the colon).
  • A pouch is constructed out of the small bowel above the anus. The pouch is able to collect waste material, and the patient can pass bowel movements normally through the anus, although they are watery and more frequent than normal (five or six times a day).
  • A temporary abdominal opening (ileostomy) is usually required, but it is typically closed up in a second operation a few months later.

Managing Daily Life after Surgery

Flatulence is the most socially distressing problem following surgery. Unfortunately many of the fiber rich vegetables and whole grains that can benefit patients with ulcerative colitis can also cause gas. (Surgical patients should avoid or chew thoroughly insoluble fiber foods, such as popcorn, olives, and vegetable skins, which can obstruct the stoma.) Some pouching systems have filters that can help limit flatulence. Typically, flatulence occurs 2 - 4 hours after eating, which may help patients time their meals to ensure privacy afterward.

Patients must increase fluid intake, and include not only water but also broth, sports drinks, and vegetable juice to maintain appropriate levels of sodium and potassium.

Patients should avoid time-released, coated, or large pills, which often are not completely absorbed and may block the stoma.

Ileostomy and ileoanal anastomosis do not interfere with bathing or showering or most physical activity. (Patients should avoid contact sports.) As a rule, the surgeries do not impair sexual function.

Outcome and Complications from Ileoanal Anastomosis

Complications are common with any intestinal operation. In about 5 - 10% of IPAA procedures, complications occur that require conversion to an ileostomy. In general, patient satisfaction is very high with this procedure. Most patients report better or much better quality of life 5 years after the procedure. Most patients can postpone their bowel movements until they are convenient. Bowel movements still average about six a day.

Pouchitis. Inflammation of the pouch (pouchitis) is the most common complication of the pouch procedures. Symptoms include rectal bleeding, cramps, and fever. It can usually be successfully treated with antibiotics such as metronidazole (Flagyl, generic) or ciprofloxacin (Cipro, generic).

Bowel obstruction may occur although it is less common than pouchitis. With most patients, this condition can be treated by avoiding food for several days and administering intravenous fluids. In about a third of patients with bowel obstruction, surgery may need to be performed to remove the blockage.

Pouch failure occurs in a small percentage of patients. It requires permanent removal of the pouch and use of ileostomy.

Irritable Pouch Syndrome. Irritable pouch syndrome is a problem that includes frequent bowel movements, an urgent need to defecate, and abdominal pain. There are no signs of inflammation, however, as there are with pouchitis. Stress and diet play a role in this condition, and it is usually relieved after a bowel movement.

Infertility. IPAA triples the risk of infertility in women with ulcerative colitis. The surgery may cause scarring or blocking of fallopian tubes, which increases the risk of infertility. About half of women who undergo this procedure become infertile.

Lifestyle Changes

Diet and Nutrition

Certain types of foods may worsen diarrhea and gas symptoms, especially during times of active disease. While people vary in their individual sensitivity to foods, general guidelines for dietary management during symptom flare-ups include:

  • Eat small amounts of food throughout the day.
  • Stay hydrated by drinking lots of water (frequent consumption of small amounts throughout the day).
  • Eat soft, bland foods and avoid spicy foods.
  • Avoid high-fiber foods (bran, beans, nuts, seeds, and popcorn).
  • Avoid fatty greasy or fried foods and sauces (butter, margarine, and heavy cream).
  • Limit milk products if you are lactose intolerant (or consider taking a lactase supplement to improve tolerance). Otherwise, dairy products are a good source of protein and calcium.
  • Avoid or limit alcohol and caffeine consumption.

Herbs and Supplements

Your doctor may recommend you take a multivitamin. Although other types of dietary supplements, such as probiotics (“healthy bacteria” like lactobacilli) and omega-3 fatty acids, have been investigated for ulcerative colitis, there is no conclusive evidence that they are effective in controlling symptoms or preventing disease relapses.

Various herbal remedies with anti-inflammatory properties have been investigated for treating Crohn’s disease and ulcerative colitis. There is no definitive evidence that they work, but studies have suggested that some specific herbs may be helpful. They include wheat grass juice, psyllium husk, evening primrose oil, curcumin, aloe vera gel, Boswellia serrata, and Andrographic paniculata.

Remember that manufacturers of herbal remedies and dietary supplements do not need FDA approval to sell their products and there is no regulation to ensure that the bottle contains what is advertised. Be sure to tell your doctor of any herbs or supplements you are taking or considering taking as some of these may interact with medications.

Stress Management

Stress does not cause Crohn’s disease or ulcerative colitis, but it can trigger and worsen symptoms. Many patients find that stress management techniques help them cope better with living with and IBD. Stress management can include meditation, yoga, and relaxation response training as well as getting adequate sleep, exercising regularly, and building a healthy support network of family and friends. Some patients may also benefit from psychological counseling.

Resources

References

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Bernstein CN, Fried M, Krabshuis JH, Cohen H, Eliakim R, Fedail S, et al. World Gastroenterology Organization Practice Guidelines for the diagnosis and management of IBD in 2010. Inflamm Bowel Dis. 2010 Jan;16(1):112-24.

Burger D, Travis S. Conventional medical management of inflammatory bowel disease. Gastroenterology. 2011 May;140(6):1827-1837.e2.

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Ford AC, Bernstein CN, Khan KJ, Abreu MT, Marshall JK, Talley NJ, et al. Glucocorticosteroid therapy in inflammatory bowel disease: systematic review and meta-analysis. Am J Gastroenterol. 2011 Apr;106(4):590-9; quiz 600. Epub 2011 Mar 15.

Ford AC, Sandborn WJ, Khan KJ, Hanauer SB, Talley NJ, Moayyedi P. Efficacy of biological therapies in inflammatory bowel disease: systematic review and meta-analysis. Am J Gastroenterol. 2011 Apr;106(4):644-59, quiz 660. Epub 2011 Mar 15.

Holubar SD, Cima RR, Sandborn WJ, Pardi DS. Treatment and prevention of pouchitis after ileal pouch-anal anastomosis for chronic ulcerative colitis. Cochrane Database Syst Rev. 2010 Jun 16;6:CD001176.

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Review Date: 12/19/2013
Reviewed By: Harvey Simon, MD, Editor-in-Chief, Associate Professor of Medicine, Harvard Medical School; Physician, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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