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Related Experiment Video

Updated: May 11, 2026

The Perinatal Asphyxiated Lamb Model: A Model for Newborn Resuscitation

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Published on: August 15, 2018

Late stillbirth: a ten year cohort study.

Raquel Robalo¹, Célia Pedroso, Njila Amaral

¹Department of Obstetrics and Gynecology, Alfredo da Costa Maternity, Lisbon, Portugal.

Acta Medica Portuguesa

|May 24, 2013

Summary

Late stillbirth remains a challenge, with an incidence of 3.5 per 1000 pregnancies over ten years. Unexplained stillbirths accounted for nearly a quarter of cases, highlighting the need for further research.

Area of Science:

Perinatal Medicine
Obstetrics
Public Health

Background:

Late fetal death, or stillbirth, presents ongoing challenges in perinatal care despite surveillance efforts.
Understanding the etiological factors is crucial for improving clinical practice and reducing adverse pregnancy outcomes.

Purpose of the Study:

To investigate the primary causes and associated conditions of fetal death in late pregnancies.
To analyze etiological factors contributing to stillbirth over a ten-year period.

Main Methods:

Retrospective cohort analysis of 208 singleton stillbirths from a tertiary perinatal referral center.
Systematic review of clinical charts, laboratory data, and feto-placental pathology.

Main Results:

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The incidence of late stillbirth was 3.5 per 1000 pregnancies, with no significant change over the decade.
Unexplained stillbirth occurred in 24.5% of cases; fetal causes were primary in 59 cases.
Maternal medical disorders, particularly hypertensive disorders, were present in 21% of cases.

Conclusions:

The incidence of late stillbirth remained stable at 3.5 per 1000 pregnancies, comparable to developed countries.
Approximately one-quarter of late stillbirths were unexplained.
Chronic hypertension was the most frequent maternal pathology associated with stillbirth.