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Definition
By Mayo Clinic staffIdiopathic thrombocytopenic purpura (ITP), also called immune thrombocytopenic purpura, is a blood-clotting disorder that can lead to easy or excessive bruising and bleeding. ITP results from unusually low levels of platelets — the cells that help your blood clot.
Idiopathic thrombocytopenic purpura affects both children and adults. Children often develop idiopathic thrombocytopenic purpura after a viral infection and usually recover fully without treatment. In adults, however, the disorder is often chronic.
Treatment of idiopathic thrombocytopenic purpura depends on your symptoms and platelet count. If you don't have signs of bleeding and your platelet count isn't too low, treatment for idiopathic thrombocytopenic purpura usually isn't necessary. More serious cases may be treated with medications or, in critical situations, with surgery.
- Idiopathic thrombocytopenic purpura (ITP). The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merck.com/mmpe/print/sec11/ch133/ch133d.html. Accessed Aug. 28, 2010.
- Diz-Kucukkaya R, et al. Thrombocytopenia. In: Lichtman MA, et al. Williams Hematology. 8th ed. New York, N.Y.: McGraw-Hill Companies, Inc.; 2010. http://www.accessmedicine.com/content.aspx?aID=6238643. Accessed Aug. 28, 2010.
- What is idiopathic thrombocytopenic purpura? National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/Itp/ITP_All.html. Accessed Aug. 27, 2010.
- George JN. Treatment and prognosis of immune (idiopathic) thrombocytopenic purpura in adults. http://www.uptodate.com/home/index.html. Accessed Aug. 27, 2010.
- Blanchette V, et al. Childhood immune thrombocytopenic purpura: Diagnosis and management. Hematology/Oncology Clinics of North America. 2010;24:249.
- Bussel JB. Traditional and new approaches to the management of immune thrombocytopenia: Issues of when and who to treat. Hematology/Oncology Clinics of North America. 2009;23:1329.
- Anderson CF (expert opinion). Mayo Clinic, Rochester, Minn. Aug. 29, 2010.
- Nplate (prescribing information). Thousand Oaks, Calif.: Amgen; 2008. http://www.nplate.com/patient/pdf/nplate_pi.pdf. Accessed Sept. 7, 2010.
- Promacta (prescribing information). Research Triangle Park, N.C.: Glaxo SmithKline; 2010. http://us.gsk.com/products/assets/us_promacta.pdf. Accessed Sept. 7, 2010.
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