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Table 4 Outcome of patients with acute respiratory distress syndrome according to transpulmonary bubble transit

From: Echocardiographic detection of transpulmonary bubble transit during acute respiratory distress syndrome

  Transpulmonary bubble transit
  Absent-or-minor ( n  = 159) Moderate-to-large ( n  = 57) p value
Pneumothorax, n (%) 8 (5%) 2 (4%) 0.64
Adjunctive therapy, n (%)
Prone positioning 50 (31%) 12 (21%) 0.14
Nitric oxide 37 (23%) 14 (25%) 0.84
ICU mortality, n (%) 73 (46%) 34 (60%) 0.08
Hospital mortality, n (%) 76 (48%) 36 (63%) 0.046
28-day ventilator-free days, mean ± SD 9 ± 10 4 ± 8 <0.01
28-day ICU-free days, mean ± SD 6 ± 9 3 ± 6 <0.01
ICU survivors (n = 109) (n = 86) (n = 23)  
MV duration, mean days ± SD 16 ± 28 28 ± 30 <0.01
ICU duration, mean days ± SD 25 ± 35 35 ± 33 0.03
  1. ICU, intensive care unit; MV, mechanical ventilation; SD, standard deviation.