Table 6 Studies of continuous 24-hour oximetry monitoring during activities of daily living
From: Ambulatory pulse oximetry monitoring in Japanese COPD outpatients not receiving oxygen therapy
Authors(Year)[Ref] | N | PaO2inclusion criteria | Supplemental oxygen therapy | PaO2PaCO2(mmHg) | %FEV1 | BMI | Proportion of desaturators | Mean proportion of SpO2values < 90% |
|---|---|---|---|---|---|---|---|---|
Soguel Schenkel (1996) [18] | 30 inpts | Not defined | 3 Patients* | Median (range) | Median (range) | Median (range) | Not described | Not described |
68 (54–89) | 37 (16–64) | 25.5 (17.1–42.5) | ||||||
42 (35–51) | ||||||||
Casanova (2006) [11] | 88 outpts | 60–70 mmHg | None | Mean ± SD | Mean ± SD | Mean ± SD | Daytime 22% | Non-desaturators |
64.7 ± 2.8 | 38 ± 13 | 27 ± 4 | Nighttime 50% | 24-hour 12.2% | ||||
45 ± 5.7 | Daytime 8.9% | |||||||
Nighttime 18.8% | ||||||||
Desaturators | ||||||||
24-hour 55.1% | ||||||||
Daytime 42.3% | ||||||||
Nighttime 77.3% | ||||||||
Garcia-Talavera (2008) [3] | 67 outpts | 60–70 mmHg | None | Median (range) | Median (range) | Not described | 24-hour 30% | 24-hour 17% |
66 (60–70) | 37 (16–64) | Daytime 25% | Daytime 15% | |||||
45 (32–57) | Nighttime 45% | Nighttime 23% | ||||||
Trauer (2012) [5] | 35 outpts | 56–70 mmHg | None | Mean ± SD | Mean ± SD | Mean ± SD | 24-hour 54% | 24-hour 41.9% |
64.1 ± 4.5 | 37.5 ± 13.2 | 27.1 ± 7.0 | Daytime 40% | Daytime 30.9% | ||||
44.2 ± 6.0 | Nighttime 77% | Nighttime 60.6% | ||||||
This study | 39 outpts | Not defined | None | Mean ± SD | Mean ± SD | Mean ± SD | Daytime 0% | Daytime 3.0% |
78.2 ± 8.9 | 50.9 ± 18.5 | 23.1 ± 3.8 | Nighttime 8% | Nighttime 7.4% | ||||
39.1 ± 4.9 | ||||||||
9 outpts** | 60–70 mmHg | None | 66.2 ± 3.0 | 37.0 ± 14.6 | 23.9 ± 4.8 | Daytime 0% | Daytime 8.4% | |
38.0 ± 5.4 | Nighttime 22% | Nighttime 20.2% |