Table 4.
Sleep-disordered breathing parameters obtained by cardiorespiratory polygraphy or polysomnography in ASV-treated patients and controls
| ASV | Controls | ||
|---|---|---|---|
| Baseline | Follow-up | Baseline | |
| AHI (h−1) | 39.7 ± 17.8 | 6.1 ± 12.1* | 36.6 ± 13.2 |
| AI (h−1) | 24.0 ± 16.4 | 2.6 ± 10.5* | 21.2 ± 13.2 |
| OAI (h−1) | 2.7 ± 5.6 | 1.9 ± 9.8 | 2.0 ± 6.7 |
| CAI (h−1) | 17.2 ± 16.0 | 0.4 ± 1.1* | 17.8 ± 14.0 |
| MAI (h−1) | 3.8 ± 9.2 | 0.3 ± 0.8* | 2.3 ± 3.6 |
| HI (h−1) | 16.1 ± 10.6 | 5.1 ± 12.4* | 15.6 ± 10.4 |
| Mean SaO2 (%) | 92.8 ± 2.0 | 94.2 ± 1.8* | 92.8 ± 2.0 |
| Min. SaO2 (%) | 81.6 ± 5.8 | 87.1 ± 4.7* | 81.5 ± 5.8 |
| Mean desaturation (%) | 6.7 ± 3.0 | 4.8 ± 2.0* | 8.2 ± 11.6 |
There were no baseline differences between ASV and controls; with ASV all parameters improved significantly (* p < 0.01)
AHI apnoea–hypopnoea index, AI apnoea index, oAI obstructive apnoea index, cAI central apnoea index, mAI mixed apnoea index, HI hypopnoea index, SaO2 oxygen saturation measured by pulse oximetry