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To assess whether real-time cardiopulmonary resuscitation (CPR) coaching might improve CPR performance and patient outcomes, researchers at three Resuscitation Outcomes Consortium sites cluster-randomized 1586 adult patients (age, ≥20) with out-of-hospital nontraumatic cardiac arrest to receive CPR performed by emergency medical services personnel with or without real-time visual and audio feedback from a manufacturer-supplied commercially available device.
Real-time feedback was associated with minimal increases in mean compression depth (40 mm and 38 mm), compression fraction (66% and 64%), and compression rate (103 and 108 per minute) but with moderate improvement in mean proportion of incomplete compression release (10% vs. 15%). Rates o…