Heart Attack vs. Sudden Cardiac Arrest: Understanding the Difference
http://www.docguide.com/increased-return-spontaneous-circulation-expense-neurologic-outcomes-prehospital-epinephrine-out-hos?hash=7e422beb&eid=49046&alrhash=3c9ebc-5aeefe0d7ed0a73e6788dca4998df39c
Journal of Critical Care 30 (6), 1376-81 (Dec 2015)
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METHODS A systematic review of the literature was conducted by search of databases including PubMed, Embase, and OVID to identify studies comparing patients with OHCA who had received epinephrine before arrival to the hospital with those who had not. Studies were assessed for quality and bias, and data were abstracted from studies deemed appropriate for inclusion. A meta-analysis was conducted using a Mantel-Haenszel model for dichotomous outcomes. Outcomes studied were prehospital ROSC, survival at 1 month, survival to discharge, and positive neurologic outcome.
RESULTS A total of 14 studies with 655853 patients were included for the meta-analysis. The use of epinephrine for OHCA before arrival to the hospital was associated with a significant increase in ROSC (odds ratio, 2.86; P<.001) and a significant increase in the risk of poor neurologic outcome at the time of discharge (odds ratio 0.51, P = .008). There was no significant difference in survival at 1 month or survival to discharge.
CONCLUSION Use of epinephrine before arrival to the hospital for OHCA does not increase survival to discharge but does make it more likely for those who are discharged to have poor neurologic outcome. There is a need for additional randomized controlled trials.
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