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Table 1 Demographic and respiratory parameters of patients included in the study

From: Novel method of transpulmonary pressure measurement with an air-filled esophageal catheter

Variables (n = 15) Values
Age (yr) 55.8 ± 8.8 (34–66)
Male (%) 10 (66)
Body mass index (kg/m2) 28 ± 7 (17–40)
Obesity (%) 6 (40)
Diagnosis:
 ARDS SARS-CoV-2 (%) 6 (40)
 Neurological injury (intracerebral hemorrhage, stroke, post-anoxic) (%) 6 (40)
 Non-ARDS pulmonary injury (COPD, pneumonia) (%) 3 (20)
Extracorporeal membrane oxygenation (%) 2 (13)
SAPS III 60 ± 11 (45–84)
Parameters in volume-controlled mode (n = 15):
 Tidal volume (ml/kg predicted body weight) 6.1 ± 1.3 (2.7–7.4)
 Plateau pressure (cmH2O) 19 ± 4 (12–25)
 PEEP (cmH2O) 7 ± 3 (5–10)
 Respiratory rate (min−1) 19 ± 5 (15–34)
 PaO2/FiO2 (mmHg) 172 ± 88 (63–380)
 PaCO2 (cmH2O) 52 ± 15 (34–92)
 Respiratory system elastance (cmH2O/(ml/kg)) 1.8 ± 1.2 (0.9–5.5)
Parameters in pressure support (n = 13):
 PEEP (cmH2O) 5 ± 1 (5–10)
 Inspiratory pressure (cmH2O) 8 ± 3 (2–12)
 Respiratory rate (min−1) 18 ± 4 (13–25)
 PaO2/FiO2 (%) 184 ± 53 (81–267)
 PaCO2 (mmHg) 46 ± 10 (34–67)
  1. ARDS, adult respiratory distress syndrome; SARS-COV-2, severe acute respiratory syndrome—coronavirus-2; COPD, chronic obstructive pulmonary disease; SAPS, Simplified Acute Physiology Score; PEEP, positive end-expiratory pressure