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• W4313232813 abstract "Introduction: Depressed left ventricular function is associated with mortality after pediatric cardiac arrest (CA). Echocardiographic global longitudinal strain (GLS) is more sensitive for poor outcomes than ejection fraction (EF) and shortening fraction (SF), with few studies in children. We aimed to identify the frequency of impaired GLS after pediatric CA and its association with hospital mortality. We hypothesized abnormal GLS is associated with mortality. Methods: This is a retrospective single-center cohort study of children < 18 years of age treated in the pediatric intensive care unit after in- and out-of-hospital CA, with echocardiogram performed within 24 hours of admission between 2013-2020. Patients with congenital heart disease, extracorporeal support, or inability to measure GLS were excluded. EF and SF measurements were abstracted and GLS measured post hoc by an investigator blinded to outcome. Abnormal left ventricular GLS was defined as >-18%. Correlation between GLS, EF and SF were calculated with Spearman’s rho. Logistic regression tested association of GLS with mortality. Area under the receiver operator characteristic (AUROC) curve was calculated for discriminative utility of GLS, EF, and SF with mortality. Results: GLS was measured in 124 subjects and abnormal in 49 (40%). Subjects with abnormal GLS were older (median 8 vs 2 years, p< 0.001), had more ventricular tachycardia/fibrillation as initial rhythm (18% vs 4%, p=0.008) and higher maximum troponin in 24 hours (median 2.6 ng/mL vs 0.5, p=0.002). There was no difference between arrest location or CPR duration based on GLS. Subjects with abnormal GLS had lower median EF (43% vs 63%) and SF (24% vs 37%), with strong inverse correlation between GLS and EF (rho -0.76) and SF (rho -0.71), all p< 0.001. Abnormal GLS had higher mortality (57% vs 33%, p=0.009) and GLS was associated with mortality when controlling for age and initial rhythm [aOR 1.17 per 1% increase in GLS (95% CI 1.09-1.26), p< 0.001]. GLS (AUROC 0.69), EF (0.71) and SF (0.71) had similar discrimination for mortality. Conclusions: Post-arrest GLS is a novel complementary metric, strongly correlated with EF and SF and associated with mortality. Future prospective studies should investigate the prognostic utility of GLS alongside SF and EF." @default.
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• W4313232813 date "2022-12-15" @default.
• W4313232813 modified "2023-10-17" @default.
• W4313232813 title "634: GLOBAL LONGITUDINAL STRAIN IS ASSOCIATED WITH MORTALITY AFTER PEDIATRIC CARDIAC ARREST" @default.
• W4313232813 doi "https://doi.org/10.1097/01.ccm.0000908268.51382.54" @default.
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