Safety, Feasibility, and Outcomes of Induced Hypothermia Therapy Following In-Hospital Cardiac Arrest—Evaluation of a Large Prospective Registry*
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Objectives: Despite a lack of randomized trials, practice guidelines recommend that mild induced hypothermia be considered for comatose survivors of in-hospital cardiac arrest. This study describes the safety, feasibility, and outcomes of mild induced hypothermia treatment following in-hospital cardiac arrest. Design: Prospective, observational, registry-based study. Setting: Forty-six critical care facilities in eight countries in Europe and the United States reporting in the Hypothermia Network Registry and the International Cardiac Arrest Registry. Patients: A total of 663 patients with in-hospital cardiac arrest and treated with mild induced hypothermia were included between January 2004 and February 2012. Interventions: None. Measurements and Main Results: A cerebral performance category of 1 or 2 was considered a good outcome. At hospital discharge 41% of patients had a good outcome. At median 6-month follow-up, 34% had a good outcome. Among in-hospital deaths, 52% were of cardiac causes and 44% of cerebral cause. A higher initial body temperature was associated with reduced odds of a good outcome (odds ratio, 0.79; 95% CI, 0.68–0.92). Adverse events were common; bleeding requiring transfusion (odds ratio, 0.56; 95% CI, 0.31–1.00) and sepsis (odds ratio, 0.52; 95% CI, 0.30–0.91) were associated with reduced odds for a good outcome. Conclusions: In this registry study of an in-hospital cardiac arrest population treated with mild induced hypothermia, we found a 41% good outcome at hospital discharge and 34% at follow-up. Infectious complications occurred in 43% of cases, and 11% of patients required a transfusion for bleeding. The majority of deaths were of cardiac origin.Original Article: http://journals.lww.com/ccmjournal/Fulltext/2014/12000/Safety,_Feasibility,_and_Outcomes_of_Induced.9.aspx
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