Key result
Prophylactic phenylephrine required fewer additional boluses and resulted in lower neonatal acidosis compared to ephedrine during caesarian section.
Why the study?
Hypotension is a major complication following spinal anesthesia for caesarian delivery that requires prompt treatment to prevent maternal symptoms and fetal acidemia, making comparative evaluation of prophylactic vasopressor infusions essential.
Does prophylactic phenylephrine prevent hypotension and neonatal acidosis better than ephedrine in patients undergoing caesarian section under spinal anesthesia?
Does prophylactic phenylephrine prevent hypotension and neonatal acidosis better than ephedrine in patients undergoing caesarian section under spinal anesthesia?
Prophylactic phenylephrine is more efficacious than ephedrine in maintaining arterial blood pressure and results in less neonatal acidosis during spinal anesthesia for caesarian section.
Answers are grounded in this paper and cite their sources.
Suggests phenylephrine advantage in cesarean spinal anesthesia; hypothesis-generating pending randomized confirmation.
Introduction: Hypotension is the most important complication following spinal anesthesia for caesarian delivery, which can produce adverse maternal symptoms and neonatal acid-base effects. Prompt effective treatment is considered essential to prevent fetal academia. Ephedrine and phenylephrine are two drugs known to prevent the hypotension following spinal anesthesia. Aim & Objective: Comparative evaluation of effect of prophylactic infusion of phenylephrine and ephedrine as a vasopressor therapy in spinal anesthesia in patients undergoing caesarian section and their effect on neonatal outcome. Observation: ephedrine and phenylephrine both maintained systolic, diastolic and mean arterial pressure, but ephedrine group required more additional bolous than phenylephrine group (p value <0.001). Phenylephrine group had acceptable pH value and lower acidosis than ephedrine group (p value <0.05). Conclusion: prophylactic Phenylephrine in a dose of 15 mcg/min is more efficacious in Comparision to Ephedrine 1.5 mg/min in maintaining arterial blood pressure following spinal anesthesia for caesarian section and has less neonatal acidosis.
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Ray et al. (2022) studied Hypotension following spinal anesthesia for caesarian delivery. Phenylephrine vs. Ephedrine 1.5 mg/min was evaluated on Requirement of additional bolus and neonatal acidosis (p=<0.001). Prophylactic phenylephrine required fewer additional boluses and resulted in lower neonatal acidosis compared to ephedrine during caesarian section.
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