Effects of nCPAP on obstructive sleep apnoea syndrome
| nCPAP(−) | nCPAP(+) | p value* | |
|---|---|---|---|
| nCPAP=nasal continuous positive airway pressure; nCPAP(−)=without nCPAP treatment; nCPAP(+)=first night of nCPAP treatment; AHI=apnoea hypopnoea index; REM=rapid eye movement; SWS=slow wave sleep; TST=total sleep time; Sao2=arterial oxygen saturation; SBP=systolic blood pressure; DBP=diastolic blood pressure. | |||
| *Wilcoxon signed rank test. Values are mean (SE). | |||
| AHI (/h) | 52.4 (3.4) | 4.2 (1.1) | <0.0001 |
| REM time (%) | 7.5 (1.2) | 13.8 (2.0) | 0.0051 |
| Non-REM time (%) | 92.5 (1.2) | 86.2 (2.0) | 0.0051 |
| SWS time (%) | 0.5 (0.4) | 4.0 (1.1) | 0.0004 |
| TST (min) | 470.0 (14.3) | 453.9 (23.0) | 0.6637 |
| Sao2 <90% (% time) | 30.1 (4.3) | 0.6 (0.3) | <0.0001 |
| Sao2 <85% (% time) | 17.2 (3.7) | 0.2 (0.1) | <0.0001 |
| Morning SBP (mm Hg) | 123.9 (4.3) | 113.1 (3.0) | 0.0087 |
| Morning DBP (mm Hg) | 85.6 (2.9) | 76.6 (2.2) | 0.0029 |