Key result
Intravenous phenylephrine and ephedrine demonstrated similar efficacy in treating hypotension after spinal anesthesia for elective caesarean section, with 78% and 88% of patients respectively requiring only a single bolus dose.
Why the study?
Hypotension from spinal block during caesarean section can have significant maternal and neonatal consequences, prompting a comparison of intravenous boluses of phenylephrine versus ephedrine for its management.
Does phenylephrine compared to ephedrine improve hemodynamic response in parturient women with hypotension after spinal anesthesia for caesarean section?
Population
100 parturients undergoing elective caesarean section who developed hypotension under spinal anesthesia
Comparison
Ephedrine 6mg bolus vs phenylephrine 75µg bolus
Design
Randomized observational study
Authors
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Either agent suffices for post-spinal hypotension in caesarean delivery; confirms comparable efficacy with phenylephrine lowering heart rate.
RCT (n=100)
Randomly allocated
No
Does phenylephrine compared to ephedrine improve hemodynamic response in parturient women with hypotension after spinal anesthesia for caesarean section?
Absolute Event Rate: 78% vs 88%
Phenylephrine and ephedrine provide comparable hypotensive control after spinal anesthesia for elective caesarean section, though phenylephrine results in a lower heart rate.
Kumari et al. (2019) conducted an RCT in Maternal hypotension after spinal anesthesia (n=100). Phenylephrine vs. Ephedrine 6mg IV bolus was evaluated on Proportion of patients effectively treated with a single bolus dose. Intravenous phenylephrine and ephedrine demonstrated similar efficacy in treating hypotension after spinal anesthesia for elective caesarean section, with 78% and 88% of patients respectively requiring only a single bolus dose.
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