• Youjin Chang, Jin-Won Huh, Sang-Bum Hong, Dae Ho Lee, Cheolwon Suh, Sang-We Kim, Chae-Man Lim, and Younsuck Koh.
• Department of Pulmonary and Critical Care Medicine, Asan Medical Center, College of Medicine, University of Ulsan, 86 Asanbyeongwon-gil, Songpa-gu, Seoul, 138-736, South Korea.
• J Crit Care. 2014 Jun 1;29(3):414-9.

PurposeTo evaluate the outcomes and prognostic factors of 28-day mortality following medical intensive care unit (MICU) admission of patients with lung cancer and pneumonia-induced respiratory failure.Materials And MethodsPatients admitted to the MICU of a tertiary referral hospital between 2000 and 2009 were retrospectively studied.ResultsIn total, 143 patients were included. Their mean age was 65±8 years and 94% were male. The 28-day mortality rate was 57%. Multivariate analysis was performed to identify variables associated with 28-day mortality. At 72 hours after admission, a history of radiotherapy (OR=2.80, 95% CI: 1.15-6.78), PaO2/FiO2 (P/F) ratio at admission of <100 mmHg (OR=5.62, 95% CI: 2.10-15.07), P/F ratio after 72 hours of <100 mmHg (OR=4.61, 95% CI: 1.24-17.15), and arterial pH after 72 hours of <7.30 (OR=5.78, 95% CI: 1.15-28.89) were associated with increased mortality.ConclusionsThe prognosis of patients with lung cancer and severe pneumonia after 72 hours of MICU management mainly depends on the severity of the underlying lung injury, which is reflected by a history of radiotherapy and a low P/F ratio, rather than on cancer stage or disease status.Copyright © 2014 Elsevier Inc. All rights reserved.

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