Data are presented as mean ± SD or median (25th to 75th percentile).
P1 -value:comparison between pre- and post-HD;P2 -value:comparison between pre-HD and controls; GLS: left ventricular longitudinal global strian of midmyocardium; GLS epi: left ventricular longitudinal global strian of subepicardium; GLS endo: left ventricular longitudinal global strian of subendocardium; PSD: peak strain dispersion; LASr: left atrial reservoir strain; LAScd: left atrial conduit strain; LASct: left atrial contractile strain.