Table 2.
Demographic data of patients in whom CT scan shows dorsal lung atelectasis and ground glass opacification
| Dorsal Lung Atelectasis | Ground Glass Opacification | |||||
|---|---|---|---|---|---|---|
| Group A | Group B | p | Group A | Group B | p | |
| Number | 17 | 9 | 5 | 9 | ||
| Age (year-old) | 69.2 ±10.7 | 69.4 ±13.2 | 0.965 | 80.4 ±5.7 | 65.7 ±13.1 | 0.036 |
| Male / Female | 11/6 | 5 / 4 | 0.692 | 4 / 1 | 8 / 1 | 1.000 |
| APACHE II | 19.8 ±5.2 | 20.9 ±8.6 | 0.679 | 20.8 ±3.5 | 19.4 ±5.9 | 0.649 |
| SOFA | 7.5 ±3.5 | 8.4 ±3.6 | 0.512 | 7.4 ±1.9 | 6.3 ±2.5 | 0.435 |
| Surgical site | ||||||
| Upper tract | 6 | 3 | 5 | 4 | ||
| Lower tract | 10 | 6 | 0 | 5 | ||
| Miscellaneous | 1 | 0 | 0 | 0 | ||
| Drug therapy Steroid, n(%) | 2(11.7) | 2(22.2) | 0.591 | 2 (40.0) | 6 (66.7) | 0.580 |
| Ventilator settings at the start of the study FiO2 | 0.7 ±0.2 | 0.6± 0.2 | 0.239 | 0.7 ±0.2 | 0.7 ±0.1 | 0.884 |
| PEEP(cmH2O) | 9.8 ±1.0 | 9.0 ±4.7 | 0.515 | 12.0 ±4.7 | 9.1±1.1 | 0.093 |
| Peak pressure (cmH20) | 19.4 ±3.9 | 16.2 ±5.2 | 0.385 | 19.4 ±7.3 | 19.2 ±4.1 | 0.953 |
| Respiratory rate | 22.2 ±7.3 | 19.9 ±5.5 | 0.420 | 18.4 ±6.1 | 25.1 ±6.9 | 0.097 |
| PaO2/FiO2 | ||||||
| At the time after the start of the study | ||||||
| Oh | 157 ± 44 | 173 ±32 | 0.325 | 151 ±45 | 150 ±21 | 0.958 |
| 72 h | 307 ± 62 | 214 ±62 | 0.0010 | 233 ± 89 | 219 ±70 | 0.748 |
Abbreviations: APACHE II, acute physiology and chronic health evaluation II; SOFA, sequential organ failure assessment; PEEP, positive end-expiratory pressure.