Perkins, Gavin D., Kocierz, Laura, Smith, Samuel C. L., McCulloch, Robert A. and Davies, Robin P.. (2009) Compression feedback devices over estimate chest compression depth when performed on a bed. Resuscitation, Vol.80 (No.1). pp. 79-82. ISSN 0300-9572

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Abstract

Introduction: CPR feedback/prompt devices are being used increasingly to guide CPR performance in clinical practice. A potential limitation of these devices is that they may fail to measure the amount of mattress compression when CPR is performed on a bed. The aim of this study is to quantify the amount of mattress compression compared to chest compression using a commercially available compression sensor (Q-CPR, Laerdal, UK). A secondary aim was to evaluate if placing a backboard beneath the victim would alter the degree of mattress compression. Methods: CPR was performed on a manikin on the floor and on a bed with a foam or inflatable mattress with and without a backboard. Chest and mattress compression depths were measured by an accelerometer placed on the manikin's chest (total compression depth) and sternal-spinal (chest) compression by manikin sensors. Results: Feedback provided by the accelerometer device led to significant under compression of the chest when CPR was performed on a bed with a foam 26.2 (2.2) mm or inflatable mattress 32.2 (1.16) mm. The use of a narrow backboard increased chest compression depth by 1.9 mm (95% CI 0.1-3.7 mm; P=0.03) and wide backboard by 2.6 mm (95% CI 0.9-4.5 mm; P=0.013). Under compression Occurred as the device failed to compensate for compression of the underlying mattress, which represented 35-40% of total compression depth. Conclusion: The use of CPR feedback devices that do not correct for compression of an underlying mattress may lead to significant under compression of the chest during CPR. (C) 2008 Elsevier Ireland Ltd. All rights reserved.

Item Type:	Journal Article
Subjects:	R Medicine > RC Internal medicine
Divisions:	Faculty of Medicine > Warwick Medical School
Journal or Publication Title:	Resuscitation
Publisher:	Elsevier Ireland Ltd
ISSN:	0300-9572
Date:	January 2009
Volume:	Vol.80
Number:	No.1
Number of Pages:	4
Page Range:	pp. 79-82
Identification Number:	10.1016/j.resuscitation.2008.08.011
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	DH NIRH Clinician Scientist, Intensive Care Foundation, Resuscitation Council (UK)
URI:	http://wrap.warwick.ac.uk/id/eprint/28663

Data sourced from Thomson Reuters' Web of Knowledge

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