Intraoperative data and clinical outcomes
When postoperative non-ALI and ALI groups were compared, the following intraoperative and clinical outcome data significantly differed: cardiopulmonary bypass (CPB) duration ≥ 257.5 min, preCPB OI ≤ 100 mmHg, ICU OI ≤ 100 mmHg, ICU lactate ≥ 3.75 mmol/L, and delayed chest closure. Aortic cross clamp (ACC) and deep hypothermic circulatory arrest (DHCA) duration, intraoperative transfusion volume, lowest nasopharyngeal temperature, and lowest rectal temperature did not affect the occurrence of postoperative severe ALI. Patients in the postoperative severe ALI group had higher postoperative mortality rates, and longer ICU stay, hospital stay, and mechanical ventilation durations than those in the non-severe ALI group. Further, patients in the postoperative severe ALI group had an increased incidence of postoperative adverse events, such as tracheotomy, reintubation, low cardiac output syndrome, and stroke (Table 3).
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