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Created December 1, 2015, last updated almost 4 years ago.
Collection: 66, Score: 1593, Trend score: 0, Read count: 1823, Articles count: 6, Created: 2015-12-01 01:22:26 UTC. Updated: 2021-02-09 02:40:01 UTC.Notes
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Collected Articles
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Randomized Controlled Trial Multicenter Study Clinical Trial
Bispectral index monitoring to prevent awareness during anaesthesia: the B-Aware randomised controlled trial.
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Randomized Controlled Trial Multicenter Study Comparative Study
Prevention of intraoperative awareness in a high-risk surgical population.
Unintended intraoperative awareness, which occurs when general anesthesia is not achieved or maintained, affects up to 1% of patients at high risk for this complication. We tested the hypothesis that a protocol incorporating the electroencephalogram-derived bispectral index (BIS) is superior to a protocol incorporating standard monitoring of end-tidal anesthetic-agent concentration (ETAC) for the prevention of awareness. ⋯ The superiority of the BIS protocol was not established; contrary to expectations, fewer patients in the ETAC group than in the BIS group experienced awareness. (Funded by the Foundation for Anesthesia Education and Research and others; BAG-RECALL ClinicalTrials.gov number, NCT00682825.).
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Anesthesia and analgesia · Mar 2010
Randomized Controlled Trial Multicenter StudyThe effect of bispectral index monitoring on long-term survival in the B-aware trial.
When anesthesia is titrated using bispectral index (BIS) monitoring, patients generally receive lower doses of hypnotic drugs. Intraoperative hypotension and organ toxicity might be avoided if lower doses of anesthetics are administered, but whether this translates into a reduction in serious morbidity or mortality remains controversial. The B-Aware Trial randomly allocated 2463 patients at high risk of awareness to BIS-guided anesthesia or routine care. We tested the hypothesis that the risks of death, myocardial infarction (MI), and stroke would be lower in patients allocated to BIS-guided management than in those allocated to routine care. ⋯ Monitoring with BIS and absence of BIS values <40 for >5 min were associated with improved survival and reduced morbidity in patients enrolled in the B-Aware Trial.
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Randomized Controlled Trial Multicenter Study
Monitoring depth of anaesthesia in a randomized trial decreases the rate of postoperative delirium but not postoperative cognitive dysfunction.
Monitoring depth of anaesthesia in those over 60 yo decreases the incidence of post-operative delirium, though not post-operative cognitive decline.
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Randomized Controlled Trial
Increased Risk of Intraoperative Awareness in Patients with a History of Awareness.
Patients with a history of intraoperative awareness are five-times more likely to experience awareness than those without.
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Randomized Controlled Trial Comparative Study
Prevention of intraoperative awareness with explicit recall in an unselected surgical population: a randomized comparative effectiveness trial.
Intraoperative awareness with explicit recall occurs in approximately 0.15% of all surgical cases. Efficacy trials based on the Bispectral Index® (BIS) monitor (Covidien, Boulder, CO) and anesthetic concentrations have focused on high-risk patients, but there are no effectiveness data applicable to an unselected surgical population. ⋯ This negative trial could not detect a difference in the incidence of definite awareness or recovery variables between monitoring protocols based on either BIS values or anesthetic concentration. By post hoc analysis, a protocol based on BIS monitoring reduced the incidence of definite or possible intraoperative awareness compared with routine care.
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