Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Randomized Controlled Trial Comparative Study
Carbetocin at elective Cesarean delivery: a randomized controlled trial to determine the effective dose, part 2.
The aim of this study was to determine the intravenous dose of carbetocin required to produce effective uterine contraction in 95% of women (ED95) undergoing elective Cesarean delivery under spinal anesthesia. ⋯ In women at low risk for PPH undergoing elective Cesarean delivery under spinal anesthesia, carbetocin is similarly effective in doses of 20-100 μg. There is a high incidence of hypotension associated with carbetocin in these doses. Further dose-finding studies are warranted, including doses lower than 20 μg. This trial was registered at www.clinicaltrials.gov (NCT01428817).
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Practice Guideline
The difficult airway with recommendations for management - Part 2 - The anticipated difficult airway.
Appropriate planning is crucial to avoid morbidity and mortality when difficulty is anticipated with airway management. Many guidelines developed by national societies have focused on management of difficulty encountered in the unconscious patient; however, little guidance appears in the literature on how best to approach the patient with an anticipated difficult airway. ⋯ With an appropriate airway evaluation and consideration of relevant contextual issues, a rational decision can be made on whether an awake approach to tracheal intubation will maximize patient safety or if airway management can safely proceed after induction of general anesthesia. With predicted difficulty, close attention should be paid to details of implementing the chosen approach. This should include having a plan in case of the failure of tracheal intubation or patient oxygenation.
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Randomized Controlled Trial Comparative Study
The median local analgesic dose of intrathecal bupivacaine with hydromorphone for labour: a double-blind randomized controlled trial.
Neuraxial hydromorphone has been reported to provide rapid onset of labour analgesia, effective segmental pain relief, and a longer duration of action than commonly used lipophilic opioids. This study was conducted to test the hypothesis that intrathecal hydromorphone reduces the dose requirement for intrathecal bupivacaine to induce rapid analgesia for women in the first stage of labour. ⋯ Further research is needed to determine whether or not intrathecal hydromorphone 100 μg changes the dose of intrathecal bupivacaine required to induce labour analgesia within 20 min.
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To review and report maternal and neonatal outcomes after cardiac arrest during pregnancy in a large tertiary care centre and to consider steps to improve the outcomes. ⋯ This series of five cases highlights the challenges to meeting the rule of initiating PMCD within four minutes of maternal cardiac arrest onset. We suggest focusing on the quality of ongoing resuscitation efforts and early delivery as our experience shows that mother and neonate can survive beyond five minutes after arrest. Improved documentation and creation of a national database for these rare events should be considered.