Table 2.
AHI and blood oxygen changes after non-invasive ventilator treatment.
| Time | Ventilator parameters (5 L/min oxygen intake) | Sleep apnea monitoring | ||||||
|---|---|---|---|---|---|---|---|---|
| Model | Pressure(cmH20) | Tidal volume(ml) | AHI (/hr) | The lowest SpO2 | Average oxygen full | Oxygen-minus index(/hr) | ||
| Hospital Day 4 | Auto-CPAP | 4–16 | / | 32.1 | 0.6 | 0.801 | 86.5 | |
| Hospital Day 7 | BiPAP ST | IPAP 8 | EPAP4 | / | 19.9 | 0.67 | 0.827 | 92.6 |
| Hospital Day 8 | AVAPS | IPAP6-12 | EPAP5 | 450 | 8.3 | 0.66 | 0.835 | 91.6 |
| Hospital Day 11 | BiPAP ST | IPAP 10 | EPAP4 | / | 11.6 | 0.81 | 0.966 | 8.3 |
AUTO CPAP, automatic continuous positive airway pressure; BiPAP ST, bilevel positive airway pressure spontaneous/timed; AVAPS, average volume-assured pressure support; IPAP, inspiratory positive airway pressure; EPAP, expiratory positive airway pressure.