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Crohn's disease
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Crohn's disease
Crohn's disease is a type of inflammatory bowel disease (IBD) that may affect any segment of the gastrointestinal tract. Symptoms often include abdominal pain, diarrhea, fever, abdominal distension, and weight loss. Complications outside of the gastrointestinal tract may include anemia, skin rashes, arthritis, inflammation of the eye, and fatigue. The skin rashes may be due to infections, as well as pyoderma gangrenosum or erythema nodosum. Bowel obstruction may occur as a complication of chronic inflammation, and those with the disease are at greater risk of colon cancer and small bowel cancer.
Although the precise causes of Crohn's disease (CD) are unknown, it is believed to be caused by a combination of environmental, immune, and bacterial factors in genetically susceptible individuals. It results in a chronic inflammatory disorder, in which the body's immune system defends the gastrointestinal tract, possibly targeting microbial antigens. Although Crohn's is an immune-related disease, it does not seem to be an autoimmune disease (the immune system is not triggered by the body itself). The exact underlying immune problem is not clear; however, it may be an immunodeficiency state.
About half of the overall risk is related to genetics, with more than 70 genes involved. Tobacco smokers are three times as likely to develop Crohn's disease as non-smokers. Crohn's disease is often triggered after a gastroenteritis episode. Other conditions with similar symptoms include irritable bowel syndrome and Behçet's disease.
There is no known cure for Crohn's disease. Treatment options are intended to help with symptoms, maintain remission, and prevent relapse. In those newly diagnosed, a corticosteroid may be used for a brief period of time to improve symptoms rapidly, alongside another medication such as either methotrexate or a thiopurine to prevent recurrence. Cessation of smoking is recommended for people with Crohn's disease. One in five people with the disease is admitted to the hospital each year, and half of those with the disease will require surgery at some time during a ten-year period. Surgery is kept to a minimum whenever possible, but it is sometimes essential for treating abscesses, certain bowel obstructions, and cancers. Checking for bowel cancer via colonoscopy is recommended every 1-3 years, starting eight years after the disease has begun.
Crohn's disease affects about 3.2 per 1,000 people in Europe and North America; it is less common in Asia and Africa. It has historically been more common in the developed world. Rates have, however, been increasing, particularly in the developing world, since the 1970s. Inflammatory bowel disease resulted in 47,400 deaths in 2015, and those with Crohn's disease have a slightly reduced life expectancy. Onset of Crohn's disease tends to start in adolescence and young adulthood, though it can occur at any age. Males and females are affected roughly equally.
The disease was named after gastroenterologist Burrill Bernard Crohn, who in 1932, together with Leon Ginzburg (1898–1988) and Gordon D. Oppenheimer (1900–1974) at Mount Sinai Hospital in New York, described a series of people with inflammation of the terminal ileum of the small intestine, the area most commonly affected by the illness. The decision to name the disease after Crohn remains controversial. While Crohn, in his memoir, describes his original investigation of the disease, Ginzburg provided strong evidence of how he and Oppenheimer were the first to study the disease.
Many people with Crohn's disease have symptoms for years before the diagnosis. The usual onset is in the teens and twenties, but can occur at any age. People with Crohn's disease experience chronic recurring periods of flare-ups and remission.
Perianal discomfort may also be prominent in Crohn's disease. Itchiness or pain around the anus may be suggestive of inflammation of the anus, or perianal complications such as anal fissures, fistulae, or abscesses around the anal area. Perianal skin tags are also common in Crohn's disease, and may appear with or without the presence of colorectal polyps.
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Crohn's disease
Crohn's disease is a type of inflammatory bowel disease (IBD) that may affect any segment of the gastrointestinal tract. Symptoms often include abdominal pain, diarrhea, fever, abdominal distension, and weight loss. Complications outside of the gastrointestinal tract may include anemia, skin rashes, arthritis, inflammation of the eye, and fatigue. The skin rashes may be due to infections, as well as pyoderma gangrenosum or erythema nodosum. Bowel obstruction may occur as a complication of chronic inflammation, and those with the disease are at greater risk of colon cancer and small bowel cancer.
Although the precise causes of Crohn's disease (CD) are unknown, it is believed to be caused by a combination of environmental, immune, and bacterial factors in genetically susceptible individuals. It results in a chronic inflammatory disorder, in which the body's immune system defends the gastrointestinal tract, possibly targeting microbial antigens. Although Crohn's is an immune-related disease, it does not seem to be an autoimmune disease (the immune system is not triggered by the body itself). The exact underlying immune problem is not clear; however, it may be an immunodeficiency state.
About half of the overall risk is related to genetics, with more than 70 genes involved. Tobacco smokers are three times as likely to develop Crohn's disease as non-smokers. Crohn's disease is often triggered after a gastroenteritis episode. Other conditions with similar symptoms include irritable bowel syndrome and Behçet's disease.
There is no known cure for Crohn's disease. Treatment options are intended to help with symptoms, maintain remission, and prevent relapse. In those newly diagnosed, a corticosteroid may be used for a brief period of time to improve symptoms rapidly, alongside another medication such as either methotrexate or a thiopurine to prevent recurrence. Cessation of smoking is recommended for people with Crohn's disease. One in five people with the disease is admitted to the hospital each year, and half of those with the disease will require surgery at some time during a ten-year period. Surgery is kept to a minimum whenever possible, but it is sometimes essential for treating abscesses, certain bowel obstructions, and cancers. Checking for bowel cancer via colonoscopy is recommended every 1-3 years, starting eight years after the disease has begun.
Crohn's disease affects about 3.2 per 1,000 people in Europe and North America; it is less common in Asia and Africa. It has historically been more common in the developed world. Rates have, however, been increasing, particularly in the developing world, since the 1970s. Inflammatory bowel disease resulted in 47,400 deaths in 2015, and those with Crohn's disease have a slightly reduced life expectancy. Onset of Crohn's disease tends to start in adolescence and young adulthood, though it can occur at any age. Males and females are affected roughly equally.
The disease was named after gastroenterologist Burrill Bernard Crohn, who in 1932, together with Leon Ginzburg (1898–1988) and Gordon D. Oppenheimer (1900–1974) at Mount Sinai Hospital in New York, described a series of people with inflammation of the terminal ileum of the small intestine, the area most commonly affected by the illness. The decision to name the disease after Crohn remains controversial. While Crohn, in his memoir, describes his original investigation of the disease, Ginzburg provided strong evidence of how he and Oppenheimer were the first to study the disease.
Many people with Crohn's disease have symptoms for years before the diagnosis. The usual onset is in the teens and twenties, but can occur at any age. People with Crohn's disease experience chronic recurring periods of flare-ups and remission.
Perianal discomfort may also be prominent in Crohn's disease. Itchiness or pain around the anus may be suggestive of inflammation of the anus, or perianal complications such as anal fissures, fistulae, or abscesses around the anal area. Perianal skin tags are also common in Crohn's disease, and may appear with or without the presence of colorectal polyps.
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