Annals of emergency medicine
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Multicenter Study Clinical Trial
Modifiable factors associated with improved cardiac arrest survival in a multicenter basic life support/defibrillation system: OPALS Study Phase I results. Ontario Prehospital Advanced Life Support.
This study was conducted to identify modifiable factors associated with survival for prehospital cardiac arrest in a large, multicenter EMS system with basic life support/defibrillation (BLS-D) level of care. ⋯ This represents the largest multicenter BLS-D study of prehospital cardiac arrest yet conducted and clearly indicates that patient survival may be improved by optimization of EMS response intervals, bystander CPR, as well as first-responder CPR by fire or police.
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The American Board of Emergency Medicine (ABEM) Longitudinal Study of Emergency Physicians (LSEP) was initiated to describe the development of a new medical specialty through the continuing study of the lives of representative emergency physicians. The study is designed to gather data periodically over many years to come. The primary purpose of this article is to provide a baseline for the information obtained and the methods used to develop the ABEM LSEP. ⋯ The LSEP is a broad-reaching investigation of emergency physicians. Over time the study will describe (1) the individuals who move the specialty forward at different stages in the growth of the specialty, (2) the realities of practice in the specialty, (3) the relationship of the specialty to the personal lives and well-being of the specialty physicians, and (4) the changes seen in these factors over time.
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Intraosseous administration of methylene blue may be an emergency alternative to intravascular administration. A 6-week-old female infant (3 kg) presented to the emergency department after a 1-week illness and appeared cyanotic and listless. Oxygen saturation by oximetry was 86% while the patient was receiving oxygen. ⋯ Three hours later, her methemoglobin level was 8.2%. The child recovered uneventfully and was sent home after 3 days. Intraosseous administration of standard intravenous doses of methylene blue rapidly terminated the effects of acquired methemoglobinemia.
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A 36-year-old man with a history of depression presented to the emergency department after ingesting approximately 3,000 mL of ethylene glycol antifreeze in a suicide attempt. The patient's ethylene glycol concentration, 1,889 mg/dL, was higher than any level previously documented in the medical literature. Although his course was complicated by nausea, emesis, lethargy, metabolic acidosis, and kidney failure, the patient survived without persistent kidney failure or other chronic problems. Sustained hemodialysis and ethanol infusion were instituted in the ED, on the basis of the patient's history, before laboratory confirmation of the ingestion was obtained.