![]() ![]() Compared to conventional AEDs, cprINSIGHT leads to a significantly shorter pre-shock pause and a significant increase in chest compression fractions.Ĭhest Compression Fraction is a term in the world of CPR. Intervention cases had a shorter median pre-shock pause compared to control cases (8 s vs 22 s, p < 0.001) and higher median CCF (86% vs 80%, P < 0.001).Ĭonclusion: AEDs with cprINSIGHT analyzed the ECG during chest compressions in 70% of analyses with 96% sensitivity and 98% specificity when it made a S or a NS decision. Sensitivity of the intervention AED was 96%, (LCL 93%) and specificity was 98% (LCL 97%), both not significantly different from control. cprINSIGHT reached a decision during CC in 70% of analyses. Results: Data from 465 control and 425 intervention cases were analyzed. Sensitivity for S, specificity for NS with 90% lower confidence limit (LCL), chest compression fractions (CCF) and pre-shock pause were compared between control and intervention cases accounting for multiple observations per patient. This algorithm classified the rhythm as “shockable” (S) and “non-shockable” (NS), or “pause needed”. In the intervention AED, cprINSIGHT was activated after the first (conventional) analysis. Methods: Amsterdam Police and Fire Fighters used a conventional AED in 2016 _2017 (control) and an AED with cprINSIGHT in 2018 _2019 (intervention). We assessed the diagnostic accuracy and clinical benefit of a new AED algorithm (cprINSIGHT), which analyzes ECG and impedance signals during CC, allowing rhythm analysis with ongoing chest compressions. Purpose: Automated external defibrillators (AED) prompt the rescuer to stop chest compressions (CC) for ECG analysis during out-of-hospital cardiac arrest (OHCA). Koster a a Amsterdam UMC, Academic Medical Center (AMC), Heart Center, Department of Cardiology, MeibergdrAZ Amsterdam, The Netherlands b Stryker Emergency Care, Redmond, WA 98052, USA Abstract these decisions are extremely accurate and has been validated by world class physician experts.Īnalyzing the heart rhythm during chest compressions: Performance and clinical value of a new AED algorithm.Ĭorina de Graaf a,*, Stefanie G. This data can then be interpreted by the AED to make a "shock or "no shock" decision, without the need for users to press a shock button. The algorithm processes ECG and patient impedance data during compressions. ![]() CprINSIGHT technology is a proprietary algorithm that allows the Lifepak CR2 to make a "shock" or "no shock" decision during ongoing chest compressions. ![]()
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