International journal of obstetric anesthesia
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Int J Obstet Anesth · Feb 2021
Randomized Controlled TrialThe effect of baricity of intrathecal bupivacaine for elective cesarean delivery on maternal cardiac output: a randomized study.
Hemodynamic instability during spinal anesthesia for cesarean delivery is associated with adverse maternal and fetal outcomes. Plain and hyperbaric bupivacaine are commonly used for cesarean delivery, however, their distinctive pharmacologic properties may affect maternal hemodynamic profiles differently. The aim of this study was to compare hemodynamic profiles using a suprasternal Doppler cardiac output (CO) monitor in healthy term parturients randomized to receive plain or hyperbaric bupivacaine for cesarean delivery. ⋯ Cardiac output changes after plain or hyperbaric bupivacaine were not different in term parturients undergoing spinal anesthesia for cesarean delivery. Further studies comparing block quality and the rate of conversion to general anesthesia are required.
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Int J Obstet Anesth · Feb 2021
Randomized Controlled TrialPre-operative carbohydrate loading prior to elective caesarean delivery: a randomised controlled trial.
Women undergoing elective caesarean deliveries are fasted for long periods prior to surgery and can become catabolic. The use of pre-operative carbohydrate drinks to optimise patients ahead of major surgery is now well established. However, evidence to support this in women undergoing elective caesarean delivery is limited. ⋯ The results of this study support the introduction of carbohydrate drinks ahead of caesarean delivery to offset the effects of pre-operative fasting. However, the results may not be generalisable to all maternity units due to differences in fasting protocols.
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Int J Obstet Anesth · Feb 2021
Randomized Controlled TrialA cluster quasi-randomized controlled trial of an interactive, monthly obstetric anesthesiology curriculum: impact on resident satisfaction and knowledge retention.
Increasingly, evidence supports the use of educational paradigms that focus on teacher-learner interaction and learner engagement. We redesigned our monthly obstetric anesthesia resident didactics from a lecture-based curriculum to an interactive format including problem-based learning, case discussion, question/answer sessions, and simulation. We hypothesized that the new curriculum would improve resident satisfaction with the educational experience, satisfaction with the rotation, and knowledge retention. ⋯ Our study failed to demonstrate improvement in resident satisfaction or knowledge retention following implementation of an interactive curriculum on a month-long obstetric anesthesia rotation. Reasons may include misalignment of the intervention with measured study outcomes, lack of sensitivity of the survey tools, and inadequate training of faculty presenters.
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Int J Obstet Anesth · Nov 2020
Randomized Controlled Trial Multicenter StudyA risk score for postoperative nausea and/or vomiting in women undergoing cesarean delivery with intrathecal morphine.
Postoperative nausea and/or vomiting affects up to 80% of parturients undergoing cesarean delivery, but there is a lack of obstetric-specific risk-prediction models. We performed this study to identify postoperative nausea/vomiting risk factors in parturients undergoing cesarean delivery, formulate an obstetric-specific prediction model (Duke score), and compare its performance against the Apfel score. ⋯ Both Duke and Apfel scores exhibited similar but poor predictive performance. Until better tools are developed, routine prophylactic anti-emetics appears to be a reasonable approach in this patient population.
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Int J Obstet Anesth · May 2020
Randomized Controlled Trial Comparative StudyComparative efficacy of epidural clonidine versus epidural fentanyl for treating breakthrough pain during labor: a randomized double-blind clinical trial.
Breakthrough pain during neuraxial labor analgesia is typically alleviated with additional administration of epidural local anesthetics, with or without adjuvants. Sometimes avoiding neuraxial opioids may be warranted and clonidine is an alternative. In a randomized double-blind trial we compared the efficacy of clonidine versus fentanyl, added to bupivacaine, for the management of breakthrough pain. ⋯ Epidural clonidine 100 μg was not superior to fentanyl 100 μg for decreasing pain scores within 15 min of co-administration with bupivacaine 0.125% for intrapartum breakthrough pain. The analgesic efficacy and hemodynamic side effects did not significantly differ.