Abstract 121: Effects of a Mandatory Basic Life Support Training Program on the No-Flow Fraction During In-Hospital Resuscitation
Background: The 2005 guidelines for cardiopulmonary resuscitation recommended high quality cardiac compressions without unnecessary interruptions. It is known that the no-flow fraction (fraction of cardiac arrest time without chest compressions being performed) varies extremely in different healthcare environments. Objective of the study was to evaluate the effects of a mandatory basic life support (BLS) curriculum on the no-flow fraction during in-hospital resuscitation.
Methods: At Dresden University Hospital (1200 beds), a mandatory BLS/ AED training with focus on high quality chest compressions has been established in 2007. Furthermore, 70 AED (Lifepak 1000) have been set up on the campus. After each code, the resuscitation training officer evaluates the no-flow fraction using Code-Stat 8.0 data review software (Medtronic, Redmond/ USA). All codes from 2008 to 2011 were evaluated except for cardiac arrests on an intensive care unit, in the operating theatre, and in the emergency department.
Results: During the study period, 117 codes were evaluated. In 62 cases, an AED was attached. In 59 cases, the data could be read out. 10 patients showed shockable rhythms, in 49 cases the initial rhythm was non-shockable. The no-flow fraction could be calculated in 44 cases and was 0.38 ± 0.14 (fig.1). Regression analysis revealed no significant influence of the mandatory BLS training on the no-flow fraction over the study interval (r= .146, p= .357).
Conclusions: A mandatory and repetitive classic BLS training is not sufficient to ensure minimal no-flow fraction during in-hospital resuscitation. This emphasizes the importance of new teaching strategies aiming on high quality chest compressions.
- © 2012 by American Heart Association, Inc.