A randomized controlled trial of variable rate phenylephrine infusion with rescue phenylephrine boluses versus rescue boluses alone on physician interventions during spinal anesthesia for elective cesarean delivery.
nonlaboring parturients >37 weeks’ gestation, ASA physical status I or II scheduled for elective cesarean delivery
allergy or hypersensitivity to phenylephrine, hypertension, multiple gestation, known fetal abnormalities, diabetes mellitus, polyhydramnios, body weight less than 50 and more than 100 kg, height less than 150 and more than 180 cm, major systemic disease, anemia (hemoglobin concentration <10 g/dL), or clotting diathesis.
