• Scott T Youngquist, Patrick Ockerse, Sydney Hartsell, Chris Stratford, and Peter Taillac.
• University of Utah School of Medicine, Division of Emergency Medicine, Salt Lake City, UT, United States; The Salt Lake City Fire Department, Salt Lake City, UT, United States. Electronic address: scott.youngquist@utah.edu.
• Resuscitation. 2016 Sep 1; 106: 102-7.

ObjectiveTo compare functional survival (discharge cerebral performance category 1 or 2) among victims of out-of-hospital cardiac arrest (OHCA) who had resuscitations performed using mechanical chest compression (mech-CC) devices vs. those using manual chest compressions (man-CC).MethodsObservational cohort of 2600 cases of OHCA from a statewide, prospectively-collected cardiac arrest registry (Utah Cardiac Arrest Registry to Enhance Survival). Comparison of functional survival among those receiving mech-CC vs man-CC was performed using a mixed-effects Poisson model with inverse probability weighted propensity scores to control for selection bias.ResultsOverall, mech-CC was utilized in 405/2600 (16%) of the total arrests in Utah during this period. 371/405 (92%) were of the load-distributing band type (AutoPulse(®)) and 22/405 (5%) were mechanical piston devices (LUCAS™), while 12/405 (3%) employed other devices. The relative risk (RR) for functional survival comparing mech-CC to man-CC after propensity score adjustment was 0.41 (95% CI 0.24-0.70, p=0.001).ConclusionsMechanical chest compression device use was associated with lower rates of functional survival in this propensity score analysis, controlling for Utstein variables and early return of spontaneous circulation.Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

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