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Blasts in peripheral blood with intraosseous infusion
1Department of Emergency Medicine, St. Christopher's Hospital for Children, Temple University School of Medicine, Philadelphia, PA 19133.
Pediatric Emergency Care
|June 1, 1990
Summary
Sudden Infant Death Syndrome (SIDS) cases revealed immature white blood cells in peripheral blood. This finding may be linked to intraosseous infusions, not underlying disease.
Area of Science:
- Pediatric Hematology
- Neonatalogy
- Pathology
Background:
- Sudden Infant Death Syndrome (SIDS) remains a leading cause of postneonatal mortality.
- Understanding the underlying pathophysiology of SIDS is crucial for diagnosis and prevention.
- Peripheral blood analysis is a standard diagnostic tool in pediatric care.
Observation:
- Two infant SIDS cases presented with immature white blood cells, including blasts, in peripheral blood samples.
- No evidence of malignancy, infection, or marrow infiltration was found to explain these findings.
- Blood sampling occurred proximal to intraosseous (IO) infusions in both cases.
Findings:
- The presence of immature myeloid cells in peripheral circulation may be an artifact of IO infusion.
- IO infusion can potentially introduce marrow elements into the venous system.
- This observation challenges the interpretation of peripheral blood smears in infants receiving IO therapy.
Implications:
- Physicians must consider IO infusion as a potential source of spurious findings in peripheral blood counts.
- Misinterpretation of immature white blood cells could lead to unnecessary investigations for serious conditions.
- Awareness of this phenomenon is vital for accurate diagnosis in critically ill infants.