Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Randomized Controlled Trial
Technical report: optimal quantity of saline for epidural pressure waveform analysis.
Epidural waveform analysis (EPWA) is a simple test to confirm the optimal placement of an epidural catheter. It relies on the transmission of the thecal pressure waveform through the epidural catheter. Little is known about the optimal volume of catheter injectate needed to optimize the EPWA test. ⋯ For EPWAs, S3 epidural catheters are superior to S1 catheters for determining pulsative waveform transmission at low injectate volume. The optimal initial quantity of saline for EPWA is 5 mL regardless of the catheter type used.
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Letter Case Reports
Double lumen tube placement with the Pentax-Airway Scope.
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Little is known about the potential for the cuff of the ProSeal laryngeal mask airway (PLMA) to cause laryngopharyngeal mucosal injury. The aim of this study was to investigate the effects of prolonged exposure of the laryngopharyngeal mucosa to the PLMA in an animal model. ⋯ The histopathological findings of this study show that prolonged use of the PLMA in the pig for up to nine hours is associated with no, or only mild alterations in the laryngopharyngeal mucosa, whereas use for 12 hr or more is associated with clear signs of mucosal injury.