Defining Neonatal Status
Forensic Pathology: Distinguishing Live Birth from Stillbirth
| Term | Definition |
|---|---|
| Live Born | An infant that exhibits at least one sign of life after complete expulsion or extraction from the mother, such as breathing, heartbeat, pulsation of the umbilical cord, or definite movement of voluntary muscles. |
| Stillborn | Refers to fetal death occurring at or after 20-28 weeks of gestation (depending on jurisdiction). The fetus shows no signs of life at birth. |
| Dead Born | A general term used for any fetus born without signs of life, regardless of gestational age. |
Forensic Diagnostic Markers
In cases of suspected infanticide or abandoned newborn death, the forensic pathologist must determine if the child was live-born. Key indicators include:
- Lungs: The Hydrostatic Test (lung flotation) is used to see if the lungs contain air (indicating breathing).
- Stomach/Intestines: Presence of air in the stomach or duodenum (Breslau’s Second Life Test) suggests the infant swallowed air after birth.
- Middle Ear: Presence of air in the middle ear cavity (Wredin’s Test) is a sensitive indicator of breathing.
- Umbilical Cord: Evidence of vital reaction (inflammation or hemorrhage) at the site of cord detachment indicates the infant survived for a period after birth.
Important Note
Distinguishing between these states is vital for legal classification. For further study on neonatal pathology, you may find additional resources and free medical questions at mymedschool.org.