Abstract 247: CPR Backboard or No Backboard?…That is the Question!
Objective: To determine whether use of a backboard (BB) during CPR can reduce mattress displacement, thereby allowing more of the sternal force to directly compress the chest.
Methods: Epochs of 50 high quality Chest Compressions (depth 38–51mm) with real-time internal potentiometer feedback were provided on CPR manikins (torso weights 25 and 50 kg), using three bed surfaces of different stiffness (stretcher, standard Stryker hospital bed with 130 mm Impression mattress, Total Care ICU bed with 130 mm mattress). Epochs of compressions were performed without BB (No BB) and with BB on each surface. Mattress displacement was measured using an accelerometer on the backboard. The provider was blinded to BB presence. 5mm was considered as minimal clinically significant difference. Unpaired t-test, multivariate linear regression with two-tailed alpha=0.05.
Results: During high quality CPR, BB use was associated with a significant decrease in mattress displacement on the ICU bed (mean difference 12.3mm for 25 kg torso, p<0.001; 7.4 mm for 50kg, p<0.001), but not on the stretcher or standard hospital bed (See Table). Decrease in mattress displacement with BB use was greater with the 25kg vs. 50kg torso (p<0.001 on each surface), and softer bed surfaces (p<0.001).
Conclusions: Backboards (BB) may not be needed for CPR on stretchers or relatively firm hospital beds. However, BB should be used for CPR when performed on soft surfaces, such as our ICU beds.
- © 2010 by American Heart Association, Inc.