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The erythrocyte differential count in newborn infants
The American Journal of Pediatric Hematology/Oncology
|January 1, 1983
Summary
Researchers developed a simple light microscopy technique to assess erythrocyte shape. Newborn infants exhibit more bowl-shaped and irregular red blood cells compared to adults.
Area of Science:
- Hematology
- Cell Biology
- Microscopy
Background:
- Erythrocyte (red blood cell) morphology is crucial in diagnosing hematologic conditions.
- Standardized methods for assessing erythrocyte three-dimensional shape are limited.
- Understanding normal erythrocyte morphology in neonates is essential for accurate diagnosis.
Purpose of the Study:
- To describe and standardize a light microscopy technique for assessing the three-dimensional shape of glutaraldehyde-fixed erythrocytes.
- To compare erythrocyte morphology in adults, full-term infants, and premature infants.
- To establish normal ranges for erythrocyte cell shapes in different age groups.
Main Methods:
- Utilized light microscopy on glutaraldehyde-fixed erythrocytes.
- Developed and standardized a technique for three-dimensional shape assessment.
- Performed erythrocyte differential counts on a large patient series.
Main Results:
- Adult erythrocytes are predominantly bowl-shaped at 37°C and disc-shaped at room temperature.
- Newborn infants (full-term and premature) show significantly higher proportions of bowl-shaped and irregularly shaped erythrocytes.
- Established normal ranges for erythrocyte cell shapes in adults, full-term, and premature infants.
Conclusions:
- A simple, standardized light microscopy technique allows for three-dimensional erythrocyte shape assessment.
- Neonatal erythrocytes exhibit distinct morphological differences compared to adult erythrocytes.
- Accurate diagnosis of neonatal hematologic diseases necessitates three-dimensional erythrocyte morphology assessment with quantitative normal values.