Efficacy and safety of norepinephrine versus phenylephrine for post-spinal hypotension in preeclamptic patients: A systematic review and meta-analysis

•Norepinephrine reduces maternal bradycardia versus phenylephrine.•Both vasopressors equally maintain blood pressure and neonatal outcomes.•No significant difference in umbilical blood gas between both vasopressors.•Larger trials are needed to confirm and guide clinical practice. We conducted a syst...

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Veröffentlicht in:European journal of obstetrics & gynecology and reproductive biology 2024-12, Vol.303, p.91-98
Hauptverfasser: Ahmed, Shahzaib, Ahmad, Eeman, Fatima, Eeshal, Akram, Umar, Ur Rehman, Obaid, Harikrishna, Arya, Sharif, Shaiza, Akmal, Noreen, Nashwan, Abdulqadir J.
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container_title European journal of obstetrics & gynecology and reproductive biology
container_volume 303
creator Ahmed, Shahzaib
Ahmad, Eeman
Fatima, Eeshal
Akram, Umar
Ur Rehman, Obaid
Harikrishna, Arya
Sharif, Shaiza
Akmal, Noreen
Nashwan, Abdulqadir J.
description •Norepinephrine reduces maternal bradycardia versus phenylephrine.•Both vasopressors equally maintain blood pressure and neonatal outcomes.•No significant difference in umbilical blood gas between both vasopressors.•Larger trials are needed to confirm and guide clinical practice. We conducted a systematic review and meta-analysis to evaluate the fetomaternal outcomes after the administration of norepinephrine or phenylephrine for the treatment of post spinal hypotension in preeclamptic women undergoing a cesarean section. We searched on PubMed, Embase, Scopus, Cochrane CENTRAL, and clinicaltrials.gov from inception till June 2024. Randomized controlled trials of preeclamptic women receiving norepinephrine or phenylephrine for post spinal hypotension were included. Two reviewers extracted data onto an Excel spreadsheet. R version 4.4 was used for statistical analysis. Risk ratios (RR) and their 95% confidence intervals (CIs) were calculated and pooled using the random effects model. Cochrane’s risk of bias (RoB 2) tool was used for quality assessment. This review has been registered with PROSPERO (CRD42024532740). A total of 4 trials, comprising 413 participants, were included in this review. 206 patients received norepinephrine, while 207 received phenylephrine. The incidence of maternal bradycardia was significantly lower in the norepinephrine group compared with the phenylephrine group (RR = 0.25, 95 % CI = 0.16 to 0.39, p 
doi_str_mv 10.1016/j.ejogrb.2024.10.012
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We conducted a systematic review and meta-analysis to evaluate the fetomaternal outcomes after the administration of norepinephrine or phenylephrine for the treatment of post spinal hypotension in preeclamptic women undergoing a cesarean section. We searched on PubMed, Embase, Scopus, Cochrane CENTRAL, and clinicaltrials.gov from inception till June 2024. Randomized controlled trials of preeclamptic women receiving norepinephrine or phenylephrine for post spinal hypotension were included. Two reviewers extracted data onto an Excel spreadsheet. R version 4.4 was used for statistical analysis. Risk ratios (RR) and their 95% confidence intervals (CIs) were calculated and pooled using the random effects model. Cochrane’s risk of bias (RoB 2) tool was used for quality assessment. This review has been registered with PROSPERO (CRD42024532740). A total of 4 trials, comprising 413 participants, were included in this review. 206 patients received norepinephrine, while 207 received phenylephrine. The incidence of maternal bradycardia was significantly lower in the norepinephrine group compared with the phenylephrine group (RR = 0.25, 95 % CI = 0.16 to 0.39, p &lt; 0.01). There were no statistical differences in other maternal outcomes or in the umbilical artery and umbilical vein blood gas analysis values. We also analyzed adverse events such as nausea (RR = 1.00, 95 % CI: 0.62 to 1.60, p = 1.00) and vomiting (RR = 0.99, 95 % CI: 0.89 to 1.11, p = 0.61), but they did not show a significant association with any group. All the trials had a moderate or low risk of bias. Bolus doses of NE and PE for the treatment of post-spinal hypotension in preeclamptic women undergoing cesarean sections were found to exhibit comparable neonatal outcomes. 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A total of 4 trials, comprising 413 participants, were included in this review. 206 patients received norepinephrine, while 207 received phenylephrine. The incidence of maternal bradycardia was significantly lower in the norepinephrine group compared with the phenylephrine group (RR = 0.25, 95 % CI = 0.16 to 0.39, p &lt; 0.01). There were no statistical differences in other maternal outcomes or in the umbilical artery and umbilical vein blood gas analysis values. We also analyzed adverse events such as nausea (RR = 1.00, 95 % CI: 0.62 to 1.60, p = 1.00) and vomiting (RR = 0.99, 95 % CI: 0.89 to 1.11, p = 0.61), but they did not show a significant association with any group. All the trials had a moderate or low risk of bias. Bolus doses of NE and PE for the treatment of post-spinal hypotension in preeclamptic women undergoing cesarean sections were found to exhibit comparable neonatal outcomes. 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subjects Anesthesia, Spinal - adverse effects
Cesarean Section - adverse effects
Female
Humans
Hypotension
Hypotension - drug therapy
Norepinephrine
Norepinephrine - administration & dosage
Norepinephrine - adverse effects
Norepinephrine - therapeutic use
Phenylephrine
Phenylephrine - administration & dosage
Phenylephrine - adverse effects
Phenylephrine - therapeutic use
Pre-Eclampsia - drug therapy
Preeclampsia
Pregnancy
Vasoconstrictor Agents - administration & dosage
Vasoconstrictor Agents - adverse effects
Vasoconstrictor Agents - therapeutic use
title Efficacy and safety of norepinephrine versus phenylephrine for post-spinal hypotension in preeclamptic patients: A systematic review and meta-analysis
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