Abstract
(Int J Obst Anesth. 2019;38:32–36) Epidural morphine is widely used for postcesarean analgesia. However, because of the risk of respiratory depression after neuraxial administration of morphine, the American Society of Anesthesiologists (ASA) recommends frequent respiratory rate monitoring in the 24 hours after administration. This has typically been assessed through intermittent manual counting of the respiratory rate—a practice that is prone to observer error and does not allow continuous monitoring. Using this technique has resulted in documented rates of respiratory depression after epidural or intrathecal morphine administration of 0% to 0.9%.This study aimed to estimate the incidence of respiratory depression using the Nellcor respiratory rate monitoring system, which allows continuous monitoring, in patients who received 3 mg of epidural morphine for postcesarean analgesia.
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