
Keywords: BPD; Bronchopulmonary dysplasia; CBV; Cerebral blood volume; IVH; Intraventricular hemorrhage; IVRT; Isovolumic relaxation time; LV; Left ventricular; LVO; LV output; NEC; Necrotizing enterocolitis; NIRS; Near-infrared spectroscopy; PDA; Patent ductus art