Abstract 14800: Ambulance Stretcher Height Affects the Quality of External Chest Compressions
Introduction: In pre-hospital care, full arrest patients are often placed on fully raised ambulance stretchers to aid in transport of the patient. Little published research has looked at the quality of external chest compressions (ECCs) performed on a standing ambulance stretcher.
Hypothesis: This study evaluated the hypothesis that the quality (depth, rate, recoil) of ECCs will decrease when performed on a fully raised ambulance stretcher.
Method: A Laerdal CPR manikin was fixed to a backboard and placed on (a) the ground (10 in.), (b) a lowered stretcher (18 in.), and (c) a raised stretcher (46 in.) in randomized order. Subjects performed 2 minutes of continuous ECCs in each position with at least 5 minutes of rest between each rotation. Subjects were instructed to perform continuous ECCs according to their understanding of the current CPR guidelines and were given no feedback. Differences in ECC quality were analyzed using 95% confidence intervals.
Results: A total of 33 subjects qualified for the study. One subject was excluded due to inability to complete the study and three others because of computer malfunction. The following tables show the results with their 95% confidence intervals.
Conclusion: Of the three quality measurements assessed, only one (ECC depth at raised stretcher height) was found to be statistically lower than the other two positions. No ECCs performed at raised height met the minimum American Heart Association standard of at least 2 inches in compression depth.
- © 2011 by American Heart Association, Inc.