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Obstet Gynecol. 1992 Oct;80(4):593-600.

Estimating the time of death in stillborn fetuses: III. External fetal examination; a study of 86 stillborns.

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  • 1Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts.

Abstract

OBJECTIVE:

To determine how accurately the time of fetal death can be predicted from the extent of external maceration in a stillborn fetus.

METHODS:

Autopsy photographs of 86 stillborns with well-timed deaths were studied retrospectively. Sixty randomly chosen fetuses (learning set) were assessed unblinded to develop proposed gross criteria for timing fetal death; 26 fetuses (test set) were then randomly and blindly assessed to test the accuracy of the proposed criteria.

RESULTS:

The two earliest changes in the learning cases were areas of desquamation measuring at least 1 cm in diameter and brown-red discoloration of the umbilical cord stump. Both changes occurred primarily in fetuses with death-to-delivery intervals of 6 or more hours. Other early changes included desquamation involving the face, abdomen, or back (12 or more hours); desquamation involving 5% or more of the body surface (18 or more hours); brown skin discoloration (24 or more hours); and a moderate or severe extent of desquamation (24 or more hours). The only late change that correlated with a specific duration of intrauterine retention was mummification (2 or more weeks). When the 26 test fetuses were randomly and blindly assessed using these gross criteria, 18 (69%) were classified correctly with respect to the approximate time of fetal death.

CONCLUSION:

External fetal examination is useful for estimating the time of death in many stillborns; this information may be helpful when a complete autopsy cannot be performed.

PMID:
1407878
[PubMed - indexed for MEDLINE]
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