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KMID : 0385920140250040456
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Journal of the Korean Society of Emergency Medicine
2014 Volume.25 No. 4 p.456 ~ p.462
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Evaluation of Risk Factors and In-hospital Mortality of Postintubation Hypotension in the Emergency Department
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Choi Chang-Sun
Lee Kyoung-Mi
Choi Kang-Kook
Kim In-Byung
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Abstract
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Purpose: Arterial hypotension is a recognized complication of emergency intubation, whereas there have been contradicting opinions regarding postintubation hypotension. The aim of this study was to determine the incidence, related factors, and impact on patient outcomes associated with postintubation hypotension (PIH) in intubations performed in the emergency department.
Methods: A structured chart audit of all consecutive adult patients requiring emergency endotracheal intubations over a two-year period (2011.1.1.~2012.12.31.) was performed retrospectively. Patients older than 20 years who had no systolic blood pressure below 90 mmHg at any time before intubation were included. Patients were analyzed in two groups, those with PIH, defined as any recorded systolic pressure less than 90 mmHg within 60 minutes of intubation, and those with no PIH. The primary outcome was inhospital mortality.
Results: Overall, 186 patients intubated in the emergency department were identified, and 18.4% (34 of 186) developed PIH. Advanced age was an independent factor of developing PIH (OR: 3.4, 95% CI: 1.3-9.0, p=0.02). Patients with PIH had significantly higher in-hospital mortality (53% vs 29%; p=0.01), and multiple logistic regression showed that PIH was an independent predictor of in-hospital mortality (OR: 2.5, 95% CI: 1.1-5.5 p=0.03).
Conclusion: Postintubation hypotension occurs in 18.3% of hemodynamically stable patients before intubation. PIH is independently associated with in-hospital mortality. Advanced age is an independent predicting factor of PIH.
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KEYWORD
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Intubation, Hypotension, Mortality, Risk factors, Emergency department
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