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Effect of encouraging a combined spinal epidural technique for cesarean delivery anesthesia

Abstract A combined spinal epidural anesthetic technique allows an anesthesia provider to administer local anesthetic through an epidural catheter in the event of a failed spinal anesthetic. Prior to May 2019, our hospital performed single-shot spinal anesthesia exclusively for cesarean deliveries. In May 2019, anesthesia providers at our hospital were encouraged to perform combined spinal epidural anesthesia for cesarean delivery. We hypothesized that subjects who received combined spinal epidural anesthesia would have superior anesthetic outcomes compared to subjects who received single-shot spinal anesthesia. We performed a retrospective review of subjects who had cesarean deliveries at our hospital from May 15, 2019, through April 15, 2021, who received either single-shot spinal anesthesia or combined spinal epidural anesthesia. Subjects who received combined spinal epidural anesthesia were older, had a higher body mass index, had higher parity, were more likely to have had a cesarean delivery in the past, were more likely to have had the neuraxial anesthetic technique performed by a junior resident, and had a lower intrathecal dose of hyperbaric bupivacaine. Combined spinal epidural anesthesia had similar anesthetic outcomes to single-shot spinal anesthesia for cesarean delivery despite more complex subjects with less experienced operators.