TABLE 5.
The difference between symptomatic cluster and non-symptomatic cluster
| Symptoms of pulmonary congestion/RPE |
P | |||
|---|---|---|---|---|
| Non-symptomatic (n=35) | Symptomatic (n=20) | |||
| Age (year) | 60.7±10.9 | 63.2±4.6 | NS | |
| Sex (%) | Man | 20 (57.1) | 15 (75) | NS |
| Group (%) | Intervention (manometry) | 35 (63.6) | 20 (36.3) | <0.001 |
| Oxygen saturation (pre)% | 93.8±3.7 | 94±4.1 | NS | |
| Oxygen saturation (post)% | 93.2±3.2 | 90.7±2.2 | 0.003 | |
| Amount of effusion(degree) (%) | Moderate | 10 (28.5) | 5 (25) | 0.04 |
| Severe | 25 (71.4) | 15 (75) | ||
| Opening pleural pressure (cm H2O) | 13.4±12.7 | 23.5±5.7 | 0.002 | |
| Pleural pressure after withdrawal of 1,000 mL (cm H2O) | –3±7 | 8.5±2.6 | <0.001 | |
| Pleural pressure after withdrawal of 2,000 mL (cm H2O) | –18.6±5 | –11.5±2.6 | <0.001 | |
| Closing pleural pressure (cm H2O) | –19.4±12.3 | –18.7±7.9 | NS | |
| Difference between opening and closing pressures (pressure gradient) | 32.8±15.6 | 42.2±13 | 0.02 | |
| Total thoracocentesis fluid is withdrawn (mL) | 1828.5±505 | 1,450±875 | 0.04 | |
| Thoracocentesis completion (%) | Complete thoracocentesis | 35 (100) | 0 | <0.001 |
| CXR (post) (%) | Residual pleural effusion | 0 | 15 (75) | <0.001 |
| Re-inflated lung | 35 (100) | 5 (25) | ||
NS not significant; RPE re-expansion pulmonary edema.