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Complications
By Mayo Clinic staffMild cases of ascariasis usually don't result in complications. If you have a heavy infestation, potentially dangerous complications may include:
- Nutritional deficiencies. Children with ascariasis are especially at risk of nutritional deficiencies. Loss of appetite and insufficient absorption of digested foods can occur.
- Intestinal blockage and perforation. In heavy ascariasis infestation, a mass of worms can block a portion of the intestine, causing severe abdominal cramping and vomiting. The blockage can even perforate the intestinal wall or appendix, causing hemorrhage or appendicitis.
- Duct blockages. In some cases, worms may block the narrow ducts of the liver or pancreas, causing severe pain.
References
- Maguire JH. Intestinal nematodes (roundworms). In: Mandell GL, et al. Mandell, Douglas and Bennett's Principles and Practice of Infectious Diseases. 7th ed. Philadelphia, Pa.: Churchill Livingstone Elsevier; 2009. http://www.mdconsult.com/book/player/book.do?method=display&type=bookPage&decorator=header&eid=4-u1.0-B978-0-443-06839-3..00287-3&displayedEid=4-u1.0-B978-0-443-06839-3..00287-3--s0010&uniq=173908408&isbn=978-0-443-06839-3&sid=924114946#lpState=closed&lpTab=contentsTab&content=4-u1.0-B978-0-443-06839-3..00287-3%3Btype%3DbookPage%3Bisbn%3D978-0-443-06839-3%3BdisplayedEid%3D4-u1.0-B978-0-443-06839-3..00287-3--s0010. Accessed Nov. 25, 2009.
- Leder K, et al. Ascariasis. http://www.uptodate.com/home/index.html. Accessed Nov. 25, 2009.
- Weller PF, et al. Pulmonary manifestations of ascariasis. http://uptodate.com/home/index.html. Accessed Nov. 25, 2009.
- Ascaris lumbricoides and Trichuris trichiura. Bad Bug Book: Foodborne pathogenic microorganisms and natural toxins handbook. U.S. Food and Drug Administration. http://www.fda.gov/Food/FoodSafety/FoodborneIllness/FoodborneIllnessFoodbornePathogensNaturalToxins/BadBugBook/ucm070828.htm. Accessed Dec. 1, 2009.
- Parasites and health: Ascariasis. Centers for Disease Control and Prevention. http://www.dpd.cdc.gov/dpdx/HTML/Ascariasis.htm. Accessed Dec. 1, 2009.
- Ascariasis. In: Ferri FF. Ferri's Clinical Advisor 2010. Philadelphia, Pa.: Mosby Elsevier; 2009. http://www.mdconsult.com/das/book/body/173908408-11/924114946/2088/66.html#4-u1.0-B978-0-323-05609-0..00010-1--sc0290_1245. Accessed Dec. 1, 2009.
- Bedell DA, et al. Ascariasis. In: Rakel RE. Textbook of Family Medicine. 7th ed. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/174032189-3/924486535/1481/300.html#4-u1.0-B978-1-4160-2467-5..50029-4--cesec6_1353. Accessed Dec. 2, 2009.
- Steckelberg JM (expert opinion). Mayo Clinic, Rochester, Minn. Dec. 3, 2009.
- Neurological diagnostic tests and procedures. National Institute of Neurological Disorders and Stroke. http://www.ninds.nih.gov/disorders/misc/diagnostic_tests.htm. Accessed Dec. 2, 2009.
- Ascaris infection (Ascariasis). Centers for Disease Control and Prevention. http://www.cdc.gov/ncidod/dpd/parasites/ascaris/factsht_ascaris.htm. Accessed Dec. 2, 2009.
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