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Endocardial fibrosis in apparently normal infant hearts
Histopathology
|July 1, 1978
Summary
Abnormal endocardial thickening was found in 3.4% of infant hearts, with 20% showing possibly significant changes. These findings in sudden infant deaths suggest a potential link to cot deaths, warranting further investigation.
Area of Science:
- Pediatric pathology
- Cardiovascular histology
Background:
- The endocardium's histological appearance in infants is not well-defined.
- Reproducibility of assessing endocardial changes is crucial for accurate diagnosis.
Purpose of the Study:
- To classify the histological appearance of the infant endocardium.
- To assess observer reproducibility in identifying endocardial changes.
- To determine the prevalence of endocardial thickening in infants.
Main Methods:
- Retrospective survey of 262 overtly normal infant hearts.
- Histological examination of endocardial tissue.
- Reproducibility tests conducted among observers.
Main Results:
- Abnormal endocardial thickening identified in 3.4% of cases.
- Probably significant endocardial thickening observed in 20% of cases.
- Changes were noted in both home and hospital deaths.
Conclusions:
- Endocardial thickening is present in a notable percentage of infant hearts.
- These histological changes may be a contributing factor in some sudden infant death syndrome (SIDS) cases.
- Prospective studies are needed to confirm the association between endocardial thickening and SIDS.