期刊
JOURNAL OF THE INTENSIVE CARE SOCIETY
卷 24, 期 2, 页码 139-146出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/17511437211047180
关键词
Prognosis; critical illness; critical care; hospital mortality; respiration; artificial
Persistent critical illness is a common clinical syndrome in the ICU, which is associated with increased healthcare utilization and adverse outcomes. This study aimed to assess the predictive factors for survival in patients with persistent critical illness and compare the characteristics and outcomes of these patients with others. The findings suggest the need for improved understanding of long-term outcomes and the development of tools for prognostication.
BackgroundPersistent critical illness is a recognisable clinical syndrome defined conceptually as when the patient's reason for being in the intensive care unit (ICU) is more related to their ongoing critical illness than their original reason for admission. Our objectives were: (1) to assess the day in ICU on which chronic factors (e.g., age, gender and comorbidities) were more predictive of survival than acute factors (e.g. admission diagnosis, physiological derangements) measured on the day of admission; (2) to assess the consistency of this finding across major patient subgroups and over time and (3) to compare case mix characteristics and outcomes for patients determined to develop persistent critical illness (based on ICU length of stay) with other patients.MethodsObservational cohort study using a high-quality clinical database from the national clinical audit of adult critical care. 217 adult ICUs in England, Wales and Northern Ireland. 835,946 adult patients admitted to participating ICUs between 1 April 2009 and 31 March 2016. The main outcome measure was mortality at discharge from acute hospital.ResultsWe fitted two statistical models ('chronic' and 'acute') and updated these based upon patients with an ICU length of stay of at least 1, 2, etc., up to 28 days. The discrimination of the chronic model first exceeded that of the acute model on day 11. Patients with longer stays (>10 days) comprised 9% of admissions but used 45% of ICU bed-days. After a mean ICU length of stay of 22 days and a subsequent 28 days in hospital, 30% died.ConclusionsPersistent critical illness is commonly encountered in clinical practice and is associated with increased healthcare utilisation and adverse outcomes. Improvements in our understanding of the longer term outcomes and in the development of tools to aid prognostication are urgently required - for humane as well as health economic reasons.
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