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Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
Published in: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine 1/2016

Open Access 01-12-2016 | Original research

Short structured feedback training is equivalent to a mechanical feedback device in two-rescuer BLS: a randomised simulation study

Authors: Noemi Pavo, Georg Goliasch, Franz Josef Nierscher, Dominik Stumpf, Moritz Haugk, Jan Breckwoldt, Kurt Ruetzler, Robert Greif, Henrik Fischer

Published in: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine | Issue 1/2016

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Abstract

Background

Resuscitation guidelines encourage the use of cardiopulmonary resuscitation (CPR) feedback devices implying better outcomes after sudden cardiac arrest. Whether effective continuous feedback could also be given verbally by a second rescuer (“human feedback”) has not been investigated yet. We, therefore, compared the effect of human feedback to a CPR feedback device.

Methods

In an open, prospective, randomised, controlled trial, we compared CPR performance of three groups of medical students in a two-rescuer scenario. Group “sCPR” was taught standard BLS without continuous feedback, serving as control. Group “mfCPR” was taught BLS with mechanical audio-visual feedback (HeartStart MRx with Q-CPR-Technology™). Group “hfCPR” was taught standard BLS with human feedback. Afterwards, 326 medical students performed two-rescuer BLS on a manikin for 8 min. CPR quality parameters, such as “effective compression ratio” (ECR: compressions with correct hand position, depth and complete decompression multiplied by flow-time fraction), and other compression, ventilation and time-related parameters were assessed for all groups.

Results

ECR was comparable between the hfCPR and the mfCPR group (0.33 vs. 0.35, p = 0.435). The hfCPR group needed less time until starting chest compressions (2 vs. 8 s, p < 0.001) and showed fewer incorrect decompressions (26 vs. 33 %, p = 0.044). On the other hand, absolute hands-off time was higher in the hfCPR group (67 vs. 60 s, p = 0.021).

Conclusions

The quality of CPR with human feedback or by using a mechanical audio-visual feedback device was similar. Further studies should investigate whether extended human feedback training could further increase CPR quality at comparable costs for training.
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Metadata
Title
Short structured feedback training is equivalent to a mechanical feedback device in two-rescuer BLS: a randomised simulation study
Authors
Noemi Pavo
Georg Goliasch
Franz Josef Nierscher
Dominik Stumpf
Moritz Haugk
Jan Breckwoldt
Kurt Ruetzler
Robert Greif
Henrik Fischer
Publication date
01-12-2016
Publisher
BioMed Central
DOI
https://doi.org/10.1186/s13049-016-0265-9

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