Journal of clinical anesthesia
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Randomized Controlled Trial
The effect of emergency manuals on team performance during two different simulated perioperative crises: A prospective, randomized controlled trial.
Whether having an emergency manual (EM) available for use during perioperative crises enhances or detracts from team performance, especially for multi-factorial diagnostic situations that do not explicitly match a chapter of the EM. ⋯ Providing an EM did not affect team performance in areas like diagnosis, treatment, fluid resuscitation, communication, and teamwork in management of perioperative crises such as transfusion reaction where an explicit chapter in the EM exists and refractory hypotension / septic shock where an explicit chapter does not exist. A suggestion of improved cardiac arrest resuscitation with the availability of an EM was found, but should be interpreted with caution given a limited sample size. Observed actions using the EM demonstrated that only about half of the teams used the EM to any substantive degree and most used it relatively late in the crisis. By observation, the EM appeared to be helpful in about half of the cases and did not, by itself, deter from appropriate management.
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Randomized Controlled Trial
Dose dependent reduction in median effective concentration (EC50) of ropivacaine with adjuvant dexmedetomidine in labor epidural analgesia: An up-down sequential allocation study.
Adjuvant dexmedetomidine can be used to reduce the required concentration of ropivacaine for labor epidural analgesia. However, the potency of dexmedetomidine has not been fully studied. The purpose of this study was to determine the median effective concentration (EC50) of ropivacaine with adjuvant dexmedetomidine. ⋯ In this study, the lowest concentration of dexmedetomidine in ropivacaine with the greatest clinical effect was 0.4 μg/ml, which is important because there may be no additional analgesic benefit of dexmedetomidine greater than 0.4 μg/ml.
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Randomized Controlled Trial Controlled Clinical Trial
The incidence of persistent postoperative opioid use among U.S. veterans: A national study to identify risk factors.
To calculate the incidence and identify the predictors of persistent postoperative opioid use at different postoperative days. ⋯ Many surgeries or invasive procedures are associated with an increased risk of persistent postoperative opioid use. The postoperative period is dynamic and the risk factors change with time.
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Randomized Controlled Trial
Nitrous oxide analgesia for external cephalic version: A randomized controlled trial.
Our study sought to determine whether or not nitrous oxide analgesia decreases pain compared to oxygen placebo during external cephalic version for breech presentation. Procedural success may be limited by pain and anxiety. Although neuraxial anesthesia has been studied extensively for these procedures, many centers lack resources for routine use. Nitrous oxide is noninvasive, has minimal side effects and requires limited facilities. We hypothesized that its analgesic properties would decrease pain compared to oxygen placebo during external cephalic version. ⋯ Despite the desirable properties of nitrous oxide, there was no analgesic benefit over oxygen for external cephalic version. Its routine use for these procedures was not supported.
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Randomized Controlled Trial
Visualization of aggregate perioperative data improves anesthesia case planning: A randomized, cross-over trial.
A challenge in reducing unwanted care variation is effectively managing the wide variety of performed surgical procedures. While an organization may perform thousands of types of cases, privacy and logistical constraints prevent review of previous cases to learn about prior practices. To bridge this gap, we developed a system for extracting key data from anesthesia records. Our objective was to determine whether usage of the system would improve case planning performance for anesthesia residents. ⋯ This study demonstrated the feasibility of developing of a clinical data visualization system that aggregated key anesthetic information and found that the usage of tools modestly improved residents' performance in simulated case planning.