Pre-eclampsia part 1: current understanding of its pathophysiology

Area of Science:

• Obstetrics and Gynecology
• Maternal-Fetal Medicine
• Pathophysiology

Background:

• Pre-eclampsia is a multisystemic disorder affecting maternal and fetal health.
• Characterized by new-onset hypertension and proteinuria after 20 weeks gestation, or hypertension with systemic disease.
• It is a leading cause of maternal and perinatal morbidity and mortality.

Purpose of the Study:

• To review the diagnosis, classification, clinical manifestations, and pathogenetic mechanisms of pre-eclampsia.
• To highlight the role of the placenta and angiogenic imbalance in pre-eclampsia development.
• To discuss the factors influencing the clinical presentation of pre-eclampsia.

Main Methods:

• Literature review of pre-eclampsia diagnosis, classification, and pathogenesis.
• Analysis of key pathogenetic mechanisms including placental function and angiogenesis.
• Discussion of clinical manifestations and contributing factors.

Main Results:

• Pre-eclampsia diagnosis requires specific criteria including hypertension and proteinuria or systemic disease evidence.
• Glomeruloendotheliosis is a characteristic lesion, though not exclusive to pre-eclampsia.
• An imbalance of angiogenesis, influenced by placental factors and maternal susceptibility, is a critical pathogenetic mechanism.

Conclusions:

• The placenta plays an essential role in pre-eclampsia development.
• Angiogenic imbalance is a significant factor, though not specific to pre-eclampsia.
• Severity, timing, and maternal factors likely dictate the clinical presentation of pre-eclampsia.