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01.12.2016 | Original research | Ausgabe 1/2016 Open Access

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

Mechanical versus manual chest compressions for cardiac arrest: a systematic review and meta-analysis

Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine > Ausgabe 1/2016
Hui Li, Dongping Wang, Yi Yu, Xiang Zhao, Xiaoli Jing
Wichtige Hinweise

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

JX and LH conceived the study, designed the trial, and obtained research funding; WD and YY collected and analyses the data; JX supervised the project with the advise of ZX; JX, LH and WD edited the manuscript; JX took responsibility for the paper as a whole. All authors discussed the results and implications and commented on the manuscript at all stages. JX is the corresponding author of this paper. All authors read and approved the final manuscript.



The aim of this paper was to conduct a systematic review of the published literatures comparing the use of mechanical chest compression device and manual chest compression during cardiac arrest (CA) with respect to short-term survival outcomes and neurological function.


Databases including MEDLINE, EMBASE, Web of Science and the registry were systematically searched. Further references were gathered from cross-references from articles by handsearch. The inclusion criteria for this review must be human prospective controlled studies of adult CA. Random effects models were used to assess the risk ratios and 95 % confidence intervals for return of spontaneous circulation (ROSC), survival to admission and discharge, and neurological function.


Twelve trials (9 out-of-hospital and 3 in-hospital studies), involving 11,162 participants, were included in the review. The results of this meta-analysis indicated no differences were found in Cerebral Performance Category (CPC) scores, survival to hospital admission and survival to discharge between manual cardiopulmonary resuscitation (CPR) and mechanical CPR for out-of-hospital CA (OHCA) patients. The data on achieving ROSC in both of in-hospital and out-of-hospital setting suggested poor application of the mechanical device (RR 0.71, [95 % CI, 0.53, 0.97] and 0.87 [95 % CI, 0.81, 0.94], respectively). OHCA patients receiving manual resuscitation were more likely to attain ROSC compared with load-distributing bands chest compression device (RR 0.88, [95 % CI, 0.80, 0.96]). The in-hospital studies suggested increased relative harm with mechanical compressions for ratio of survival to hospital discharge (RR 0.54, [95 % CI 0.29, 0.98]). However, the results were not statistically significant between different kinds of mechanical chest compression devices and manual resuscitation in survival to admission, discharge and CPC scores for OHCA patients and survival to discharge for in-hospital CA patients.


The ability to achieve ROSC with mechanical devise was inferior to manual chest compression during resuscitation. The use of mechanical chest compression cannot be recommended as a replacement for manual CPR, but rather a supplemental treatment in an overall strategy for treating CA patients.
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