International journal of obstetric anesthesia
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Int J Obstet Anesth · Nov 2024
Randomized Controlled Trial Comparative StudyP6 acupressure versus sham acupressure for prevention of intraoperative nausea and vomiting during cesarean delivery under neuraxial anesthesia: a randomized controlled trial.
Intraoperative and postoperative nausea and vomiting (IONV and PONV) are common during cesarean delivery (CD) with neuraxial anesthesia. Limited information exists on the antiemetic benefit of combined P6 acupoint stimulation with acupressure (P6 acupressure) and pharmacologic antiemetics on preventing IONV and PONV after CD. This study assessed the antiemetic efficacy of P6 acupressure compared to a non-P6 acupoint stimulation with acupressure (sham acupressure) in preventing IONV during CD. ⋯ P6 acupressure did not reduce the incidence of IONV or PONV when combined with antiemetic therapy per enhanced recovery recommendations. There does not appear to be sufficient evidence to support using P6 acupressure for IONV prevention.
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Int J Obstet Anesth · Nov 2024
Randomized Controlled TrialPre-oxygenation using high flow humidified nasal oxygen or face mask oxygen in pregnant people - a prospective randomised controlled crossover non-inferiority study (The HINOP2 study).
Airway guidelines recommend pre-oxygenation of obstetric patients to an end tidal oxygen concentration (etO2) ≥90%. High flow nasal oxygen (HFNO) achieves this in 60% of pregnant people. However face mask (FM) pre-oxygenation also may not achieve this target in all patients. In this study we determined whether HFNO pre-oxygenation is non-inferior to FM pre-oxygenation. ⋯ In this cohort of pregnant people at term in a simulated environment, pre-oxygenation with HFNO was not inferior to FM pre-oxygenation. FM pre-oxygenation did not achieve pre-oxygenation targets in over 50% of participants.
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Int J Obstet Anesth · Nov 2024
Randomized Controlled Trial Comparative StudyComparison of erector spinae plane and transversus abdominis plane block for postoperative analgesia after caesarean delivery under spinal anaesthesia: A randomised controlled trial.
Truncal blocks contribute to multimodal analgesia that enhances early recovery after caesarean delivery. The transversus abdominis plane (TAP) block is an established technique that offers somatic abdominal wall analgesia. The erector spinae plane (ESP) block is a fascial plane technique that may offer additional visceral analgesic effects. This study hypothesized that ESP block would offer superior analgesic efficacy to TAP block in women undergoing caesarean delivery under spinal anaesthesia. ⋯ This study found similar postoperative opioid use and analgesic efficacy between ESP and TAP block after caesarean delivery performed under spinal anaesthesia.
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Int J Obstet Anesth · Nov 2024
Randomized Controlled TrialEffect of pneumatic leg compression on phenylephrine dose for hypotension prophylaxis via variable rate infusion at cesarean delivery: an unblinded randomized controlled trial.
Phenylephrine infusion is recommended to prevent spinal hypotension during cesarean delivery (CD) but may be associated with dose-dependent side effects. We hypothesized that adding intermittent pneumatic compression (IPC) of the lower legs to a variable-rate phenylephrine infusion will reduce the dose of phenylephrine required during CD. ⋯ Intermittent pneumatic compression combined with a variable-rate phenylephrine infusion reduced the phenylephrine dose per minute and the incidence of hypotension during CD under spinal anesthesia.
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Int J Obstet Anesth · Nov 2024
Randomized Controlled TrialDevelopment of the obstetric unanticipated difficult video-laryngoscopy algorithm through a quality improvement randomized open-label in situ simulation study.
Video-laryngoscopy is increasingly used during general anesthesia for emergency cesarean deliveries. Given the heightened risk of difficult tracheal intubation in obstetrics, addressing challenges in airway management is crucial. In this simulation study, we hypothesized that using a flexible bronchoscope would lead to securing the airway faster than the Eschmann introducer when either device is used in addition to video-laryngoscopy. ⋯ Our data from simulated emergency tracheal intubation suggest that flexible bronchoscopy combined with video-laryngoscopy results in faster intubation time than using an Eschmann introducer combined with video-laryngoscopy.