Table 1.
Patient Characteristics (N = 113)
| Variables | Mean (SD)/median (IQR) |
|---|---|
| Age (y) | 60.1 (12.0) |
| Sex, M/F(N) | 61/52 |
| Height (cm) | 164.0 (7.5) |
| Weight (cm) | 66.1 (10.8) |
| BMI (kg/m2) | 24.5 (3.3) |
| ASA, 1/2/3 (N) | 7/96/10 |
| SPO2 (%) | 90.0 (89.0, 91.0) |
| Duration of mechanical ventilation (min) | 220.0 (162.5, 285.0) |
| Total infusion (mL) | 1500.0 (1000.0, 1500.0) |
| Duration of PACU stay (min) | 105.0 (85.0, 137.5) |
| LUS score | 13.0 (11.0,16.0) |
| Smoking status, N (%) | |
| Current | 10 (8.8) |
| Previous | 11 (9.7) |
| Never | 92 (81.4) |
| Type of surgery, N (%) | |
| Neurosurgery | 10 (8.8) |
| Thoracoscopic surgery | 31 (27.4) |
| Abdominal surgery | 45 (39.8) |
| Major orthopaedics surgery | 17 (15.0) |
| Others | 10 (8.8) |
Data are described as the mean ± standard deviation or median and interquartile range, as appropriate
The LUS score was described in patients without pneumothorax (N = 85)
SPO2 was assessed without inhaled oxygen 15 min after extubation
The duration of PACU stay was the time period from entering the PACU to leaving
Abbreviations: SD Standard deviation; IQR Interquartile range; M male; F Female; BMI Body mass index; ASA American Society of Anesthesiologists classification; SPO2 Oxygen saturation measured by pulse oximetry; PACU Postanaesthesia care unit; LUS Lung ultrasound