Left ventricular function measured by LVFS is positively correlated with higher probability of rates of return of spontaneous circulation (ROSC) and may be associated with higher chances of survival in patients with PEA arrest.

We found a positive association between left ventricular systolic fractional shortening (LVFS) and the primary outcome of ROSC, but not with the secondary outcome of survival to hospital admission.

Given that the relationship was not linear and that we observed a threshold effect in the relationship between LVFS and outcomes, we performed an analysis using quartiles of LVFS.

Using prospectively obtained data from an observational cohort of patients receiving focused echocardiography during cardiopulmonary resuscitation (CPR) in the Emergency Department (ED) setting, we analyzed 312 consecutive subjects with available echocardiography images with initial rhythm of PEA.

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