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Updated: Sep 20, 2026

Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
Published on: November 20, 2015
Presumed antepartum amniotic fluid embolism
Kristen J Kent1, Brian C Cooper, Karl W Thomas
1Department of Obstetrics and Gynecology, Roy J. and Lucille A. Carver College of Medicine and The University of Iowa Hospitals and Clinics, Iowa City, Iowa 52242, USA.
Background:
Amniotic fluid embolism is seldom recognized in nonperipartum patients. The pathophysiology is uncertain and diagnosis imprecise, making management after stabilization difficult.
Case:
A 37-year-old woman at 28 weeks' gestation presented with signs and symptoms consistent with amniotic fluid embolism including disseminated intravascular coagulopathy. A ventilation-perfusion scan demonstrated unmatched perfusion defects, but other radiographic studies were negative; the patient was treated with heparin. Four days after presentation she had spontaneous rupture of membranes followed by hypoxemia, necessitating cesarean delivery. A pulmonary arteriogram after the operation showed multiple filling defects; the patient was discharged on warfarin.
Conclusion:
Amniotic fluid embolism is a difficult diagnosis to make, at best. Anticoagulation may be a therapeutic option.
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