634: GLOBAL LONGITUDINAL STRAIN IS ASSOCIATED WITH MORTALITY AFTER PEDIATRIC CARDIAC ARREST. (15th December 2022) - Gardner, Monique; Wang, Yan; Himebauch, Adam; Conlon, Thomas; Graham, Kathryn; Morgan, Ryan; Berg, Robert; Yehya, Nadir; Mercer-Rosa, Laura; Topjian, Alexis