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Prophylactic Norepinephrine and Phenylephrine Infusion for Hemodynamic Effects in Patients With Preeclampsia

Hemodynamic Instability Clinical Trial

Official title:
Comparison of Prophylactic Norepinephrine and Phenylephrine Infusion for Hemodynamic Effects in Patients With Preeclampsia During Cesarean Section: a Randomized, Controlled Trial

Clinical Trial Summary

The purpose of this study is to investigate the maternal cardiac output response to prophylactic norepinephrine and phenylephrine infusion for postspinal anesthesia hypotension in parturients with preeclampsia undergoing cesarean section.

Clinical Trial Description

Preeclampsia, which affects 5% to 7% of parturients, is a significant cause of maternal and neonatal morbidity and mortality. Because of constricted myometrial spiral arteries with exaggerated vasomotor responsiveness, though blood pressure in parturients with preeclampsia are apparently higher than healthy parturients, placental hypoperfusion is more common. Spinal anesthesia is still the preferred mode of anesthesia in parturients with preeclampsia for cesarean section. In preeclampsia parturients, spinal anesthesia improve intervillous blood flow (provided that hypotension is avoided) which contribute to increase placental perfusion. Even so, 17-26% parturients with preeclampsia experienced postspinal anesthesia hypotension due to the extensive sympathetic block that occurred with spinal anesthesia. As a potential substitute drug for phenylephrine and ephedrine, norepinephrine has gained traction for use in parturients undergoing cesarean section. However, hemodynamic effects of the prophylactic norepinephrine infusion is still unknown. The purpose of this study is to investigate the maternal cardiac output response to prophylactic norepinephrine and phenylephrine infusion for postspinal anesthesia hypotension in parturients with preeclampsia undergoing cesarean section. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05035498
Study type Interventional
Source General Hospital of Ningxia Medical University
Contact Xinli Ni, Dr.
Phone 86-951-674-3252
Email xinlini6@nyfy.com.cn
Status Recruiting
Phase N/A
Start date February 1, 2024
Completion date April 21, 2025
View Details
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