FP804SUBCLINICAL CARDIOVASCULAR DAMAGE IN PEDIATRIC KIDNEY TRANSPLANT RECIPIENTS: CARDIAC STRAIN MEASUREMENTS BY TWO DIMENSIONAL SPECKLE TRACKING ECHOCARDIOGRAPHY. (13th June 2019) - Bárczi, Adrienn; Lakatos, Bálint; Cseprekál, Orsolya; Kis, ÉVa; Kovács, Attila; Berta, László; Szabó, Attila; Merkely, Béla; Reusz, György S