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Immune Thrombocytopenia (ITP): Acute and Chronic Forms

Pathogenesis, modern therapies and bleeding risk management

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Hematoloji department. Book Appointment →

What is Immune Thrombocytopenia (ITP): Acute and Chronic Forms?

ITP is defined by isolated thrombocytopenia (platelet count below 100 x 10^9/L) without other causes of low platelets.

Pathogenesis includes antiplatelet autoantibodies, T-cell mediated platelet destruction and impaired megakaryocyte function.

Acute ITP is often self-limited and follows viral infections or vaccines, mainly in children.

Chronic ITP persists more than 12 months and predominates in adults with female preponderance.

Secondary ITP is associated with autoimmune diseases, infections (HIV, hepatitis C, Helicobacter pylori), drugs and lymphoproliferative disorders.

Symptoms

Petechiae, purpura and easy bruising on skin and mucous membranes.
Epistaxis, gum bleeding and prolonged bleeding from minor injuries.
Heavy menstrual bleeding (menorrhagia) and gastrointestinal bleeding in some cases.
Severe thrombocytopenia (below 10 x 10^9/L) increases risk of intracranial hemorrhage.
Many patients with platelets above 30 x 10^9/L are asymptomatic and discovered on routine blood counts.

Risk Factors

Recent viral infection, especially in pediatric acute ITP.
Autoimmune disorders including systemic lupus erythematosus, antiphospholipid syndrome and thyroid disease.
Chronic infections such as HIV, hepatitis C and Helicobacter pylori.
Medications: heparin, quinine, vancomycin, beta-lactam antibiotics, antiepileptics.
Common variable immunodeficiency, lymphomas and leukemias may present with secondary ITP.

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Sudden petechiae, unexplained bruising or mucosal bleeding requires complete blood count.
  • Gastrointestinal, urinary or significant nasal bleeding warrants urgent hematology evaluation.
  • Headache, vision changes or focal neurologic signs in a patient with severe thrombocytopenia is a medical emergency.
  • Persistently low platelets despite corticosteroid therapy or relapse after initial response.
  • Pregnant women with thrombocytopenia need coordinated obstetric and hematology care.

Treatment Methods

01
Adults with platelets below 30 x 10^9/L or active bleeding receive corticosteroids (prednisone, dexamethasone) as first-line.
02
Intravenous immunoglobulin or anti-D immunoglobulin provides rapid platelet response in urgent situations.
03
Thrombopoietin receptor agonists (eltrombopag, romiplostim, avatrombopag) and rituximab are key second-line agents.
04
Splenectomy provides durable remission but is reserved for selected refractory cases due to thrombosis and infection risks.
05
Fostamatinib, mycophenolate, immunosuppressants and platelet transfusion for life-threatening bleeding complete the armamentarium; vaccinations and infection prophylaxis are essential before splenectomy or rituximab.

Which Department to Visit?

You can visit our Hematoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.