Abstract 260: The Changing Pattern of Utilization of Therapeutic Hypothermia Post Cardiac Arrest: A Single-Center Experience
Background: In 2005, the AHA/ILCOR Guidelines recommended hypothermia as a class I therapy post VF/VT arrest. The benefit of this therapy in patients with non-VF rhythms remains disputed. Hence, the 2010 AHA guidelines encourage but do not list hypothermia as a class 1 therapy in patients with a non-VF rhythm. We evaluated the changing patterns of utilization of therapeutic hypothermia from 2004-2010.
Methods: In 123 survivors of non-traumatic out-of-hospital cardiac arrest, data were collected utilizing the Utstein guidelines. Outcomes were examined for 3 time periods: all patients from 2004-2005, 2006-2007, and 2008-2010. Data are presented as mean ± SD, median and 25th, 75th percentiles, or as percentages for dichotomous variables. Analysis was by ANOVA.
Results: There was no substantial change in the clinical profile of the patients resuscitated from 2004-2010. The use of hypothermia increased in VF/VT survivors to near 90% in 2010. However, the use of hypothermia in non-VF rhythm patients also increased from 21 % to 65.7 % (p<0.01) with no improvement in survival or neurological status (all p ns).
Conclusion: Over 6 years the use of hypothermia for VF/VT patients has increased. However, with no data of proven benefit, the use of hypothermia in patients with non-VF rhythms has tripled. The appropriateness of such aggressive therapy in Non-VF/VT patients warrants reconsideration.
- © 2011 by American Heart Association, Inc.