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Severe bleeding in idiopathic thrombocytopenic purpura
1Department of Clinical Haematology, Manchester Royal Infirmary, Oxford Road, Manchester M13 9WL, United Kingdom. paula.bolton-maggs@cmmc.nhs.uk
Insights
Childhood immune thrombocytopenia is typically self-limiting, with serious bleeding rare. Intracranial hemorrhage, though feared, is uncommon and often treatable, but prolonged low platelet counts increase risk.
Area of Science:
- Pediatrics
- Hematology
- Immunology
Background:
- Childhood immune thrombocytopenia (ITP) is generally acute and self-limiting.
- Serious bleeding complications are infrequent, affecting 5% or fewer children.
- Intracranial hemorrhage (ICH) is the most feared complication, occurring in ~0.3% of cases.
Observation:
- Nosebleeds and gastrointestinal bleeding are the most common serious bleeding types.
- Pharmacotherapy and transfusions are used to manage bleeding and raise platelet counts.
- Optimal response to platelet-raising therapies is not always achieved.
Findings:
- Intracranial hemorrhage, while rare, can occur even after months of mild ITP.
- The risk of ICH increases with the duration of severely low platelet counts.
- An international registry is proposed to gather data on these critical ITP cases.
Implications:
- Prompt treatment of bleeding and ICH generally leads to good outcomes.
- Understanding risk factors, like duration of thrombocytopenia, is crucial for prevention.
- Menstrual bleeding in adolescents with ITP may require a multidisciplinary, hormonal approach.
Abstract:
Immune thrombocytopenia in childhood is usually an acute self-limiting disorder and despite very low platelet counts is rarely complicated by serious bleeding. Several surveys indicate that only 5% or fewer children experience serious bleeding, most commonly from the nose or gastrointestinal tract. Such children need urgent measures to control bleeding, both transfusion where necessary and pharmacotherapy to raise the platelet count. Not infrequently the response of the count is less than optimal. While intracranial hemorrhage is the most feared and serious complication, it is rare, occurring in about 0.3% of cases, and if treated promptly usually has a good outcome. Treatment prior to intracranial hemorrhage does not necessarily prevent it, and it may occur after many months of otherwise clinically mild disease. The relative risk increases with the length of time a child has a very low platelet count. An international registry will help to collect more information about these important cases. Menstrual bleeding can cause severe problems for adolescents and may need a multidisciplinary approach with hormonal manipulation of the menstrual cycle.