Increase Chest Compression Fraction Or Reduce CPR Pauses. How?

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cprINSIGHT technology is a proprietary algorithm that allows the Lifepak CR2 to make a "shock" or "no shock" decision during ongoing chest compressions.

The algorithm processes ECG and patient impedance data during compressions. 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. these decisions are extremely accurate and has been validated by world class physician experts.

https://www.resuscitationjournal.com/action/showPdf?pii=S0300-9572%2821%2900009-5

Analyzing the heart rhythm during chest compressions: Performance and clinical value of a new AED algorithm.

Corina de Graaf a,*, Stefanie G. Beesems a, Sharon Oud a, Ronald E. Stickney b, Daniel W. Piraino b, Fred W. Chapman b, Rudolph W. Koster a a Amsterdam UMC, Academic Medical Center (AMC), Heart Center, Department of Cardiology, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands b Stryker Emergency Care, Redmond, WA 98052, USA Abstract

Purpose: Automated external defibrillators (AED) prompt the rescuer to stop chest compressions (CC) for ECG analysis during out-of-hospital cardiac arrest (OHCA). 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. Methods: Amsterdam Police and Fire Fighters used a conventional AED in 2016 _2017 (control) and an AED with cprINSIGHT in 2018 _2019 (intervention). In the intervention AED, cprINSIGHT was activated after the first (conventional) analysis. This algorithm classified the rhythm as “shockable” (S) and “non-shockable” (NS), or “pause needed”. 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.

Results: Data from 465 control and 425 intervention cases were analyzed. cprINSIGHT reached a decision during CC in 70% of analyses. Sensitivity of the intervention AED was 96%, (LCL 93%) and specificity was 98% (LCL 97%), both not significantly different from control. 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).

Conclusion: 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. Compared to conventional AEDs, cprINSIGHT leads to a significantly shorter pre-shock pause and a significant increase in chest compression fractions.

Chest Compression Fraction is a term in the world of CPR. It is the percentage of time in which chest compressions are done by rescuers during a cardiac arrest. In a real-world cardiac arrest, CPR often is interrupted or delayed by things such as rescue breaths, pulse checks and heart rhythm analysis. For years, previous researchers have found that fewer pauses in CPR increase the chances of surviving a cardiac arrest.

https://pubmed.ncbi.nlm.nih.gov/15928466/

This is only a fraction of what the Lifepak CR2 is capable of. To find out more contact me directly - [email protected]

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Share 34 1 Comment Bryce Gartner CRSP, CQA, CPPS 4y

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Very innovative!

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