• Jae-Hyug Woo, Yong Su Lim, Hyuk Jun Yang, Won Bin Park, Jin Seong Cho, Jin Joo Kim, Sung Youl Hyun, and Gun Lee.
• Department of Emergency Medicine, Gachon University Gil Medical Center, 1198, Guwol-dong, Namdong-gu, Incheon, 405-760, South Korea.
• Am J Emerg Med. 2014 Feb 1;32(2):150-5.

AimThe aim of this study is to investigate risk factors associated with the development of pneumonia during the first 7 days of admission in survivors of cardiac arrest receiving therapeutic hypothermia.MethodsA total of 123 patients receiving therapeutic hypothermia after out-of-hospital cardiac arrest between January 2008 and December 2010 were enrolled. Study populations were categorized as "pneumonia present" [P (+)] and "pneumonia absent" [P (-)] contingent upon the development of pneumonia during the first 7 days of admission. Risk factors and outcomes related to development of pneumonia were determined.ResultsFifty-nine patients (48.0 %) developed pneumonia, and P (+) patients had lower Acute Physiology and Chronic Health Evaluation II score (22 vs 26); longer durations of central venous catheter (8.9 vs 5.1 days), nasogastric tube (11.1 vs 3.8 days), mechanical ventilation (MV) (9.3 vs 3.7 days), and intensive care unit stay (10.0 vs 5.0 days); and higher rates of nasogastric feeding (66.1% vs 35.9 %), tracheostomy (52.5% vs 17.2 %), and postanoxic seizure (62.7% vs 39.1 %). In multivariate analyses, the occurrence of postanoxic seizure (odds ratio, 2.75; 95% confidence interval, 1.06-7.14; P = .04) and the length of MV (odds ratio, 1.33; 95% confidence interval, 1.15-1.52; P < .001) were independently associated with the development of pneumonia. The development of pneumonia had no significant association with survival (log-rank test, P = .15).ConclusionPostanoxic seizure and prolonged duration of MV are independently associated with development of pneumonia. It may be helpful that we give more attention to the development of pneumonia in patients with postanoxic seizure and provide prompt diagnosis and treatment of postanoxic seizure.© 2013.

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