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Chronic neutropenia during childhood. A 13-year experience in a single institution
1Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas.
Insights
Childhood chronic neutropenia typically follows a benign clinical course. Most children experience eventual resolution of neutropenia, even with very low granulocyte counts.
Area of Science:
- Pediatrics
- Hematology
- Immunology
Background:
- Chronic neutropenia in children is uncommon.
- Understanding its clinical course and characteristics is crucial for management.
Purpose of the Study:
- To evaluate the clinical course and characteristics of pediatric patients with chronic neutropenia.
- To identify factors influencing the disease's progression and resolution.
Main Methods:
- Retrospective chart review of 50 pediatric patients with chronic neutropenia over 13 years.
- Categorization into congenital neutropenia, cyclic neutropenia, and neutropenia of unknown origin.
- Analysis of clinical manifestations, disease course, and resolution rates.
Main Results:
- The majority of children (48/50) exhibited a benign clinical course despite low granulocyte counts.
- Labial abscess/cellulitis was a presenting symptom in 3 of 6 affected girls.
- Neutropenia resolved in 62% (23/37) of patients, with a median duration of 19 months.
- No significant difference was observed based on antineutrophil antibody test results.
Conclusions:
- Childhood chronic neutropenia is generally a benign condition with a favorable prognosis.
- Spontaneous resolution is common, suggesting a self-limiting nature in most cases.
- Further research may elucidate underlying mechanisms and optimize supportive care.
Abstract:
To evaluate the clinical course and characteristics of children with chronic neutropenia, we reviewed the charts of all such patients seen at our center during a 13-year period. A total of 50 patients with chronic neutropenia were identified. Three patients had documented congenital neutropenia, and two siblings had cyclic neutropenia. The remaining 45 children had chronic neutropenia of unknown origin. All children except two had a remarkably benign course despite markedly reduced granulocyte counts. Of six girls in this group who had abscess or cellulitis of the labia majora, it was a presenting manifestation in three. Resolution of neutropenia was documented in 23 (62%) of 37 patients for whom follow-up information was available, with a median duration of neutropenia of 19 months. No differences were evident between patients with positive antineutrophil antibody test results and those in whom the test yielded negative results or was not performed. Chronic neutropenia in childhood is a relatively uncommon entity, characterized by a benign course and eventual resolution in the majority of patients.