Inter-rater reliability of point-of-care ultrasound during out-of-hospital cardiac arrest: an ancillary analysis of the observational prospective ACE trial

Background: Prognostication in out-of-hospital cardiac arrest (OHCA) remains challenging. While point-of-care ultrasound (POCUS) has demonstrated utility in identifying reversible causes and predicting outcomes, the quality and reliability of echocardiographic assessments in this context remain poorly characterized. This study aimed to evaluate interrater agreement between trained emergency physicians (POCUS operators) and ultrasound experts in assessing cardiac motion on ultrasound during cardiopulmonary resuscitation (CPR). Methods: coefficients. Results: = 0.47 and 0.87, respectively). Conclusion: This paper is an ancillary study of the ACE trial, registered on ClinicalTrials.gov (Identifier: NCT03494153) on March 29, 2018.