Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Randomized Controlled Trial Comparative Study
A randomized comparison between intravenous and perineural dexamethasone for ultrasound-guided axillary block.
This randomized double-blinded trial compared the effect of intravenous and perineural dexamethasone (8 mg) on the duration of motor block for ultrasound (US)-guided axillary brachial plexus block (AXB). ⋯ Compared to intravenous dosing, perineural dexamethasone (8 mg) results in longer durations of sensorimotor block and postoperative analgesia for ultrasound-guided axillary block. This trial was registered at www.clinicaltrials.gov number, NCT02629835.
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During difficult airway management, oxygen insufflation through airway-exchange and intubating catheters (AEC/IC) can lead to life-threatening hyperinflation. Ventrain(®) was originally designed to facilitate emergency ventilation using active expiration through short, small-bore cannulas. Herein, we studied its efficacy (oxygenation and ventilation) and safety (avoidance of hyperinflation) in a long, small-bore AEC. ⋯ Ventrain provides rapid reoxygenation and effective ventilation through a small-bore AEC in pigs with an obstructed airway. In clinical emergency situations of obstructed airways, this device may be able to overcome problems of unintentional hyperinflation and high intrapulmonary pressures when ventilating through long, small-bore catheters and could therefore minimize the risks of barotrauma and hemodynamic instability.
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Historically, anesthesiology departments have played a small role in teaching the pre-clerkship component of undergraduate medical education (UGME). The purpose of this study was to measure the current participation of Canadian anesthesiologists in UGME with a focus on pre-clerkship. ⋯ The contribution of anesthesiology departments to pre-clerkship has increased over the past fifteen years but remains much less than expected based on proportional faculty size. While the increase is encouraging, the relatively poor engagement is concerning, representing not only a missed opportunity but also a possible threat to the academic standing of the profession.