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Massive Urinary Protein Excretion Associated with Greater Neonatal Risk in Preeclampsia.

Julio Mateus1, Roger Newman1, Baha M Sibai2

  • 1Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Medical University of South Carolina, Charleston, South Carolina.

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|March 29, 2017
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Summary

Massive proteinuria in preeclampsia (PE) is linked to more severe symptoms and earlier delivery. While not always diagnostic, it indicates a higher risk for adverse neonatal outcomes.

Keywords:
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Area of Science:

  • Obstetrics and Gynecology
  • Perinatology
  • Maternal-Fetal Medicine

Background:

  • Preeclampsia (PE) is a hypertensive disorder of pregnancy with varying clinical presentations.
  • Proteinuria levels are used in PE classification, but their impact on clinical outcomes requires further investigation.

Observation:

  • This study analyzed 406 pregnancies with preeclampsia (PE), categorizing them by proteinuria levels: nonproteinuria (25.1%), mild-proteinuria (66.0%), and massive-proteinuria (8.8%).
  • Massive-proteinuria PE was associated with significantly higher blood pressure, epigastric pain, and uric acid levels prior to delivery.
  • Maternal morbidity was comparable across groups, but massive-proteinuria PE showed significantly higher rates of delivery before 34 weeks gestation.

Findings:

  • Composite adverse neonatal outcomes were significantly more frequent in the massive-proteinuria PE group compared to mild-proteinuria and nonproteinuria groups.
  • Early delivery (<34 weeks) was substantially higher in massive-proteinuria PE (80.6%) versus mild-proteinuria PE (49.3%) and nonproteinuria PE (22.5%).

Implications:

  • Massive proteinuria, though not always diagnostically critical, serves as an indicator of severe clinical manifestations in preeclampsia.
  • Identifying massive proteinuria prompts closer monitoring and may necessitate earlier intervention to mitigate risks for adverse neonatal outcomes.