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(A) Overall distribution of patients showing mild/no, moderate, or severe pulmonary hypertension (PH) at initial, 24- and 48-hour evaluation. (B–D) Course of PH in patients with initial mild/no (B), moderate (C) and severe (D) PH. Extracorporal membrane oxygenation (ECMO)-rate and mortality are given in relation to the degree of PH at 48 h.
