An alternative strategy for studying adverse events in medical care

不利影响 观察研究 严重性 医学 医疗保健 急诊医学 患者安全 病历 入射(几何) 家庭医学 医疗急救 重症监护医学 内科学 物理 经济 光学 法学 经济增长 政治学
作者
Lori B. Andrews,Carol Stocking,Thomas J. Krizek,Lawrence J. Gottlieb,Claudette Krizek,T Vargish,Mark Siegler
出处
期刊:The Lancet [Elsevier BV]
卷期号:349 (9048): 309-313 被引量:529
标识
DOI:10.1016/s0140-6736(96)08268-2
摘要

Background Data about the frequency of adverse events related to inappropriate care in hospitals come from studies of medical records as if they represented a true record of adverse events. In a prospective, observational design we analysed discussion of adverse events during the care of all patients admitted to three units of a large, urban teaching hospital affiliated to a university medical school. Discussion took place during routine clinical meetings. We undertook the study to enhance understanding of the incidence and scope of adverse events as a basis for preventing them. Methods Ethnographers trained in qualitative observational research attended day-shift, weekday, regularly scheduled attending rounds, residents' work rounds, nursing shift changes, case conferences, and other scheduled meetings in three study units as well as various departmental and section meetings. They recorded all adverse events during patient care discussed at these meetings and developed a classification scheme to code the data. Data were collected about health-care providers' own assessments about the appropriateness of the care that patients received to assess the nature and impact of adverse events and how health-care providers and patients responded to the adverse events. Findings Of the 1047 patients in the study, 185 (17·7%) were said to have had at least one serious adverse event; having an initial event was linked to the seriousness of the patient's underlying illness. Patients with long stays in hospital had more adverse events than those with short stays. The likelihood of experiencing an adverse event increased about 6% for each day of hospital stay. 37·8% of adverse events were caused by an individual, 15·6% had interactive causes, and 9·8% were due to administrative decisions. Although 17·7% of patients experienced serious events that led to longer hospital stays and increased costs to the patients, only 1·2% (13) of the 1047 patients made claims for compensation. Interpretation This study shows that there is a wide range of potential causes of adverse events that should be considered, and that careful attention must be paid to errors with interactive or administrative causes. Health-care providers' own discussions of adverse events can be a good source of data for proactive error prevention.
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