AANA journal
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Historically, closed malpractice claims have been used to identify and examine potential causes for adverse anesthesia outcomes. In the United States, the American Association of Nurse Anesthetists and the American Society of Anesthesiologists have compiled and analyzed such data. ⋯ Although some researchers have cited closed claims studies as evidence of anesthesia risk trends, the nature of the data makes it inappropriate for calculation or comparison of risk. Further work is needed to elucidate some mechanisms of injury and to develop interventions to maximize patient safety.