Abstract 258: Did We Already Reach the Best Achievable Quality of Chest Compression in Vienna?
INTRODUCTION: Annually ~45 citizens per 100,000 have no signs of circulation and are assessed by teams of the Vienna Ambulance Service. Only in 25 percent of these cases sustained return of spontaneous circulation (ROSC) is achieved and merely unsatisfying 11.3 percent leave the hospital again.
The goal of this project is to follow up on chest compression performances of the ambulance crews in Vienna after the Circulation Improving Resuscitation Care (CIRC) Trial some years ago.
METHODS: This observational trial assesses the quality of chest compression based on the guideline recommendations. Data are gathered from run-reports and written event recordings as described by the Utstein criteria including command and control center and emergency call records, ECG, thoracic impedance data, vital parameters as well as hospital records. During the collection of this data, the ambulance service of Vienna received standardized feedback on their CPR performance.
RESULTS: From August 1, 2013 to April 30, 2014701 patients were registered. MedianCompression ratewas 108/min.Median fraction of time in which chest compression were given with the target rate of 100 to 120/min, per case is 75% and median hands on fraction was 82%.Mean percentage of minutes with a hands off fraction of 75 or higher is 72% (SD ± 24). Comparing the group who regained ROSC to those who did not no significant difference can be found in either hands on fraction as well as frequency. The confidence interval of hands on fraction within the group that regained ROSC is between 75% and 80% compared to 74% and 78% within the group that did not.
CONCLUSION: The missing presence of any difference between the groups with regained ROSC and the one that did not leads to the conclusion that the quality of chest compression is on overall high level and further improvement is hardly possible and will most likely not lead to further more ROSC.
Author Disclosures: S. Zeiner: None.
- © 2014 by American Heart Association, Inc.