Abstract
Objective
To study immunoglobulin production after severe blunt head trauma in children.
Design
Serum for IgG, IgM, IgA, IgE, and IgG subclasses were drawn from 10 children admitted with severe head injury (ISS 31.2, GCS 5.4) on day 1, 7, 14 and 21 after injury.
Results
5 of the 10 patients developed infection between 7 and 14 days and 2 died of complications of pneumonia. On day 1, IgM levels averaged 95.6% of the mean of the age-specific normal controls. By day 7, IgM levels averaged 383% (p<0.01). While all patients were within the age-specific normal range (± 2 SD) on day 1, 7 of 10 patients were above the normal range by day 7. There was no difference in IgM levels between infected and non-infected patients. Five patients were below the age-specific normal range for IgG on day 1, with 3 still low on day 7. By day 21, IgG levels averaged 141% of the mean of the age-specific normal controls. IgG subclasses followed a pattern similar to total IgG levels. Marked increases in IgE were seen in 3 patients.
Conclusions
IgM levels increased dramatically in all patients within seven days of the injury. While 50% of these children had a deficit of IgG in the first week, total IgG and IgA levels increased after injury, but not as rapidly as IgM levels. Unlike pediatric burn patients, there is no persistent hypogammaglobulinemia following severe blunt trauma in children.
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Supported by a grant from Sandoz Pharmaceuticals, East Hanover, New Jersey, USA
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Wilson, N.W., Wu, Y.P., Peterson, B. et al. Immunoglobulins and IgG subclasses in children following severe head injury. Intensive Care Med 20, 508–510 (1994). https://doi.org/10.1007/BF01711906
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DOI: https://doi.org/10.1007/BF01711906