title: Atrial Fibrillation and Mortality in Critically Ill Patients: A Retrospective Study.
abstract: BACKGROUND
  Although atrial fibrillation is common in critically ill patients, no large studies on its impact on patient mortality in general intensive care units have been done.
  
  
  OBJECTIVE
  To evaluate the association between atrial fibrillation and hospital mortality in critically ill patients.
  
  
  METHODS
  In a retrospective cohort study, critically ill patients who had atrial fibrillation during a 2-year period were compared with patients who did not. The primary outcome was death during the hospital stay. Secondary outcomes were duration of mechanical ventilation and lengths of stay in the intensive care unit and hospital.
  
  
  RESULTS
  Among a total of 2018 first-time admissions to the intensive care unit during the study period, 421 patients (20.9%) had atrial fibrillation. Patients with atrial fibrillation had higher mortality, significantly longer duration of mechanical ventilation, and longer stays in the intensive care unit and in the hospital than did patients without this cardiac arrhythmia. However, multiple logistic regression analysis indicated that atrial fibrillation was not independently associated with a higher risk for death.
  
  
  CONCLUSIONS
  Atrial fibrillation may not be independently associated with hospital mortality.
authors.affiliation: Sachin Gupta is a consultant, Department of Intensive Care Medicine, Frankston Hospital, Victoria, Australia, and was formerly a senior registrar, Department of Intensive Care, St Vincent's Hospital, Fitzroy, Victoria, Australia. Ravindranath Tiruvoipati is a consultant, Department of Intensive Care Medicine, Frankston Hospital, and an adjunct clinical associate professor, School of Public Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Victoria, Australia. Cameron Green is a research coordinator, Department of Intensive Care Medicine, Frankston Hospital.
authors.forename: Sachin
authors.initials: S
authors.lastname: Gupta
authors.affiliation: Sachin Gupta is a consultant, Department of Intensive Care Medicine, Frankston Hospital, Victoria, Australia, and was formerly a senior registrar, Department of Intensive Care, St Vincent's Hospital, Fitzroy, Victoria, Australia. Ravindranath Tiruvoipati is a consultant, Department of Intensive Care Medicine, Frankston Hospital, and an adjunct clinical associate professor, School of Public Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Victoria, Australia. Cameron Green is a research coordinator, Department of Intensive Care Medicine, Frankston Hospital. travindranath@hotmail.com.
authors.forename: Ravindranath
authors.initials: R
authors.lastname: Tiruvoipati
authors.affiliation: Sachin Gupta is a consultant, Department of Intensive Care Medicine, Frankston Hospital, Victoria, Australia, and was formerly a senior registrar, Department of Intensive Care, St Vincent's Hospital, Fitzroy, Victoria, Australia. Ravindranath Tiruvoipati is a consultant, Department of Intensive Care Medicine, Frankston Hospital, and an adjunct clinical associate professor, School of Public Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Victoria, Australia. Cameron Green is a research coordinator, Department of Intensive Care Medicine, Frankston Hospital.
authors.forename: Cameron
authors.initials: C
authors.lastname: Green
mesh_terms: D000368:Aged; D001281:Atrial Fibrillation / Q000401:mortality*; D001315:Australia / Q000453:epidemiology; D015331:Cohort Studies; D016638:Critical Illness; D005260:Female; D017052:Hospital Mortality; D006801:Humans; D007362:Intensive Care Units / Q000706:statistics & numerical data*; D007902:Length of Stay / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D012121:Respiration, Artificial / Q000706:statistics & numerical data; D012189:Retrospective Studies