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Variables related to chronic immune thrombocytopenia: experience from a single center and comparison to a
S Fernández-Plaza1, J González de Pablo2, E Gálvez1,2
1Pediatric Hematology and Oncology, Hospital Infantil Universitario Niño Jesús, 28009, Madrid, Spain.
Insights
For children diagnosed with immune thrombocytopenia (ITP), older age and higher platelet counts at diagnosis are key indicators for chronic ITP (cITP). Younger children (under 4) with low platelet counts have a lower risk of developing cITP.
Area of Science:
- Pediatric Hematology
- Immunology
- Clinical Research
Background:
- Chronic primary immune thrombocytopenia (cITP) affects approximately 20% of immune thrombocytopenia (ITP) patients.
- Clinical relevance of prognostic variables for cITP remains debated.
- Previous studies suggested variables like age, sex, cell count, and treatment influence cITP development.
Purpose of the Study:
- To identify independent prognostic variables for chronic primary immune thrombocytopenia (cITP) in a pediatric cohort.
- To compare identified prognostic variables with findings from a recent systematic review and meta-analysis.
- To establish reliable indicators for assessing cITP risk in children.
Main Methods:
- Retrospective analysis of a pediatric patient cohort diagnosed with ITP.
- Multivariate analysis to identify independent prognostic variables for cITP.
- Comparison of findings with existing literature and meta-analyses on cITP prognostic factors.
Main Results:
- Older age at diagnosis and higher platelet counts were identified as the sole independent variables associated with cITP.
- Children aged 4 years or younger with platelet counts below 20 × 10^9/L demonstrated a lower risk for cITP.
- Variables such as total leukocyte count and absence of treatment at diagnosis were not confirmed as independent predictors in this cohort.
Conclusions:
- Age and platelet count at diagnosis are the only independent variables crucial for evaluating cITP risk in children.
- Findings refine understanding of cITP prognosis, emphasizing specific demographic and clinical parameters.
- This study contributes to a more focused approach in predicting chronic immune thrombocytopenia in pediatric populations.
Abstract:
Classically, several variables have been related to the disease course of chronic primary immune thrombocytopenia (cITP), though to date, there is no consensus on their clinical relevance. In a recent systematic review, a meta-analysis was made and confirmed the existence of certain cITP-related variables that may be related to prognosis in pediatric patients. We retrospectively analyzed a cohort of patients diagnosed with ITP, identified prognostic variables, and compared our results to the variables described by the authors. A multivariate study revealed that older age at diagnosis and higher platelet count were the only independent variables related to cITP. Children up to age 4 years and those with lower platelet counts (below 20 × 109/L) were at lower risk for cITP.Conclusion: We therefore concluded that only age and platelet count at diagnosis are independent variables that should be considered when evaluating the risk of developing cITP. What is Known: • Around 20% of patients with immune thrombocytopenia progress to chronic disease as determined by a sustained platelet count below 100×109/L for more than 12 months. • A number of variables potentially related to the development of cITP are being studied, such as age, sex, cell count, and previous treatment. What is New: • This is a new group of patients diagnosed with ITP in which the platelet count and age at diagnosis are the only independent variables closely related to cITP. • In this new series, we could not confirm other variables previously related to cITP such as total leukocyte count or the absence of treatment at diagnosis.
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