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Clostridium difficile (also called C. difficile) are bacteria that can cause swelling and irritation of the large intestine, or colon. This inflammation, known as colitis, can cause diarrhea, fever, and abdominal cramps.
You may get C. difficile colitis if you take antibiotics. C. difficile also can be passed from person to person. But the infection is most common in people who are taking antibiotics or have taken them recently. It is also common in older people who are in hospitals and nursing homes and in people who are getting chemotherapy for cancer.
Colitis caused by C. difficile can be mild or serious. In rare cases, it can cause death.
The large intestine normally contains many good bacteria that keep it healthy and do not cause disease. If you take antibiotics to kill bacteria that do cause disease, your medicine may also kill the good bacteria. This may allow C. difficile bacteria to grow in your large intestine and release harmful substances called toxins. Experts also think that, in some cases, antibiotics may cause these toxins to be released.
When the toxins are released, the colon becomes inflamed.
People who take medicines that reduce stomach acid, such as Nexium, Prevacid, or Prilosec, also have a greater risk of getting a C. difficile infection.footnote 1 Your doctor can help you decide which medicines to keep or change.
C. difficile may be spread when an infected person does not wash his or her hands after using the bathroom and then touches something like a door handle, bed rail, or phone. This may leave C. difficile bacteria on the objects. Other people can get infected if they touch a contaminated object and then eat or rub their faces with their hands. Health care workers can pass this bacteria from room to room in a hospital or a long-term care facility.
The best way to prevent spreading C. difficile is to wash your hands often, especially after you use the bathroom. It is also a good idea to wash your hands before and after you visit a hospital, nursing home, or other place where people may be ill or weak. Use soap and water. Alcohol-based hand sanitizers do not work well against C. difficile.
C. difficile colitis may cause:
You also may have an abnormal heartbeat, especially if you become dehydrated.
Symptoms usually begin 4 to 10 days after you start taking antibiotics. But they might not start until a few weeks after you stop taking antibiotics.
The illness may be so mild that you have some diarrhea but no fever or cramps.
Your doctor may think you have C. difficile colitis if both of the following are true:
To confirm the diagnosis, a stool sample will be tested to look for the presence of C. difficile (by detecting its DNA) or the toxins that C. difficile produces.
Your doctor may look at the colon through a lighted instrument (sigmoidoscopy or colonoscopy). In the most serious cases of C. difficile colitis, patches of yellow and white tissue may form on the inside of the colon.
First, if possible, your doctor will have you stop taking the antibiotic that caused the infection. Your doctor may then treat C. difficile colitis with an antibiotic other than the one that caused the infection. You will likely take fidaxomicin, metronidazole, or vancomycin. Sometimes the infection comes back a few days after you stop treatment. If this happens, you may be given another antibiotic.
If you have severe diarrhea, you also may be given fluids to prevent dehydration and to make sure you have the right amount of minerals (electrolytes) in your blood. Or you may get a medicine called a bile salt binder (such as cholestyramine) that can help control the diarrhea.
For people who are not helped by antibiotics, a fecal transplant may be done. This treatment places stool from a donor into the colon of a person who has C. difficile infection. The good bacteria in the donor stool helps get rid of the C. difficile bacteria and restore health to the colon.
Probiotics, which are bacteria that help keep the natural balance of organisms (microflora) in the intestines, may be helpful for people who have repeated C. difficile infections.
In rare cases, a person might need surgery to remove part of the intestines. This would happen only if you did not get better with antibiotics and you developed a perforation in your intestines.
U.S. Food and Drug Administration (2012). FDA drug safety communication: Clostridium difficile-associated diarrhea can be associated with stomach acid drugs known as proton pump inhibitors (PPIs). Available online: http://www.fda.gov/Drugs/DrugSafety/ucm290510.htm#sa.
Other Works Consulted
Agency for Healthcare Research and Quality (2011). Effectiveness of Early Diagnosis, Prevention, and Treatment of Clostridium difficile Infection: Executive Summary [AHRQ Pub. No. 11(12)-EHC051-1]. Rockville, MD: Agency for Healthcare Research and Quality. Available online: http://effectivehealthcare.ahrq.gov/index.cfm/search-for-guides-reviews-and-reports/?pageaction=displayproduct&productid=822#3792.
Bagdasarian N, et al. (2015). Diagnosis and treatment of Clostridium difficile in adults: A systematic review. JAMA, 313(4): 398–408. DOI: 10.1001/jama.2014.17103. Accessed April 14, 2015.
Cohen SH, et al. (2010). Clinical practice guidelines for Clostridium difficile infection in adults: 2010 update by the Society for Healthcare Epidemiology of America (SHEA) and the Infectious Diseases Society of America (IDSA). Infection Control and Hospital Epidemiology, 31(5): 431–455.
Kassam Z, et al. (2013). Fecal microbiota transplantation for Clostridium difficile infection: Systematic review and meta-analysis. American Journal of Gastroenterology, 108(4): 500–508. DOI: 10.1038/ajg.2013.59. Accessed December 20, 2014.
Kelly CP, LaMont JT (2006). Treatment of Clostridium difficile diarrhea and colitis. In MM Wolfe et al., eds., Therapy of Digestive Disorders, 2nd ed., pp. 733–744. Philadelphia: Saunders Elsevier.
Kelly CP, Lamont JT (2010). Antibiotic-associated diarrhea, pseudomembranous enterocolitis, and Clostridium difficile-associated diarrhea and colitis. In M Feldman et al., eds., Sleisenger and Fordtran's Gastrointestinal and Liver Disease, 9th ed., vol. 2, pp. 1889–1903. Philadelphia: Saunders Elsevier.
Lessa FC, et al. (2015). Burden of Clostridium difficile infection in the United States. New England Journal of Medicine, 372(9): 825–834. DOI: 10.1056/NEJMoa1408913. Accessed April 14, 2015.
Nelson RL, et al. (2011). Antibiotic treatment for Clostridium difficile-associated diarrhea in adults. Cochrane Database of Systematic Reviews (9).
Current as of: January 26, 2020
Author: Healthwise StaffMedical Review: E. Gregory Thompson, MD - Internal MedicineAdam Husney, MD - Family MedicineArvydas D. Vanagunas, MD, FACP, FACG - Gastroenterology
Current as of: January 26, 2020
E. Gregory Thompson, MD - Internal Medicine & Adam Husney, MD - Family Medicine & Arvydas D. Vanagunas, MD, FACP, FACG - Gastroenterology
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