Document Detail

Impact of definitions on trauma center mortality rates and performance.
MedLine Citation:
PMID:  23188244     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Trauma center performance depends on quality metrics, such as mortality rates, but there have been few studies on how an exact definition of death can influence these statistics. The purpose of this study was to test the hypothesis that the mortality rate at one trauma center could be influenced by the interpretation of "dead on arrival." Personal communication suggests that this definition is applied variably throughout our state.
METHODS: All deaths at our Level I trauma center from January 2009 to April 2011 were reviewed.
RESULTS: There were 11,121 trauma admissions, predominantly male (75%), with mean +/- SD of 39 +/- 20, 72% blunt, 22% penetrating, and 7% burn injuries. There were 661 deaths, of which 582 were "hospital deaths" and an additional 79 were classified as "dead on arrival," defined as patients arriving with no vital signs and receiving no hospital intervention. However, 23% (n = 136) of the hospital deaths also arrived with no vital signs but received some lifesaving intervention, for example, tube thoracostomy (n = 95, 70%), thoracotomy (n = 48, 35%), and/or central venous catheter (n = 21, 15%). The state-reported mortality rate each month was 5.3 +/- 1.4%. If those who arrived with no vital signs were excluded, the mortality rate each month was 4.0 +/- 1.2% (p < 0.001).
CONCLUSION: At this trauma center, approximately one fourth of the deaths reported to the state were patients who arrived with no vital signs. If any lifesaving intervention is attempted in these moribund patients, even if it is futile, it is termed "hospital death," rather than "dead on arrival." State regulations exclude patients who received any intervention from being classified as dead on arrival, but compliance with this definition is not audited. Therefore, unless there is strict compliance and standardized definitions, any comparison of trauma center quality based on mortality could be questioned.
LEVEL OF EVIDENCE: Epidemiologic study, level III.
Robert M Van Haren; Chad M Thorson; Emiliano Curia; Carl I Schulman; Nicholas Namias; Alan S Livingstone; Kenneth G Proctor
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  The journal of trauma and acute care surgery     Volume:  73     ISSN:  2163-0763     ISO Abbreviation:  J Trauma Acute Care Surg     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-11-28     Completed Date:  2013-08-22     Revised Date:  2013-09-25    
Medline Journal Info:
Nlm Unique ID:  101570622     Medline TA:  J Trauma Acute Care Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1512-6     Citation Subset:  AIM; IM    
Dewitt-Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, USA.
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MeSH Terms
Cardiopulmonary Resuscitation / mortality,  statistics & numerical data
Florida / epidemiology
Hospital Mortality*
Middle Aged
Quality Indicators, Health Care / standards,  statistics & numerical data
Trauma Centers / standards*,  statistics & numerical data
Vital Signs
Wounds and Injuries / mortality,  therapy

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