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Testing children for inherited thrombophilia: more questions than answers
Leslie Raffini1, Courtney Thornburg
1Division of Hematology, Department of Pediatrics, The Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia, PA 19104-4399, USA. raffini@email.chop.edu
Insights
Testing children for inherited thrombophilia (a tendency to clot) is common but its usefulness is debated. More research is needed to guide recommendations for these blood disorder tests in pediatric patients.
Area of Science:
- Pediatric Hematology
- Thrombosis Research
- Clinical Genetics
Background:
- Thrombotic events in children are a growing concern, especially in specialized hospitals.
- The frequency of inherited thrombophilia in pediatric thrombosis cases differs across populations.
- Testing for inherited thrombophilia is common in children with thrombosis or a family history.
Purpose of the Study:
- To review the current practice of testing children for inherited thrombophilia.
- To evaluate the rationale behind these diagnostic tests.
- To identify areas requiring further evidence for robust recommendations.
Main Methods:
- Literature review of studies on inherited thrombophilia testing in pediatric populations.
- Analysis of the clinical utility and diagnostic yield of thrombophilia screening.
- Examination of existing guidelines and evidence gaps.
Main Results:
- The prevalence of inherited thrombophilia varies significantly in children with thrombosis.
- The clinical utility of routine testing for inherited thrombophilia in children remains uncertain.
- Evidence supporting widespread testing in asymptomatic children with a family history is limited.
Conclusions:
- The clinical utility of inherited thrombophilia testing in children requires further investigation.
- More research is essential to establish clear guidelines for testing in pediatric thrombosis.
- Future studies are needed to address unanswered questions regarding the management of thrombophilia in children.
Abstract:
Thrombotic events in children have become an increasingly common problem, particularly in paediatric tertiary care hospitals. The prevalence of inherited thrombophilia in children who develop thrombosis varies substantially depending on the population. Children who develop thrombosis, as well as those who have not but have a positive family history, are frequently tested for inherited thrombophilia. The clinical utility of performing such tests has been questioned, in both adults and children. This review will examine the practise of testing for inherited thrombophilia in children, focusing on the rationale for testing and highlighting areas in which more evidence is needed prior to making strong recommendations. Future studies, many of which are currently being performed or proposed, are necessary to address many of the unanswered questions.
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