Table 4.
Functional characteristics of the 45 adult obese patients
| Total (n = 45) | |
|---|---|
|
Spirometry (n = 45) |
|
| FEV1,% pred |
88 ± 18 |
| VC,% pred |
92 ± 20 |
| FEV1 < 80% |
13 (29%) |
| FEV1/VC |
0.77 ± 0.10 |
| FEV1/ VC < 0.7 |
5 (11%) |
|
Plethysmography (n = 38) |
|
| FRC,% pred |
94 ± 23 |
| ERV,% pred |
56 ± 34 |
| TLC,% pred |
98 ± 17 |
| TLC < 80% |
5 (13%) |
| DLCO,% pred |
83 ± 18 |
| DLCO < 70% |
10 (26%) |
|
Arterial blood gases (n = 43) |
|
| pH |
7.42 ± 0,03 |
| PaO2 (mmHg) |
90 ± 16 |
| PaO2 ≤ 70 mmHg |
0 (0%) |
| PaCO2 (mmHg) |
39 ± 4 |
| PaCO2 > 45 mmHg |
0 (0%) |
|
Walking test (n = 45) |
|
| 6-minute walk distance (m) |
420 ± 112 |
| SpO2 at rest (%) |
97 ± 2 |
| SpO2 after 6MWT (%) |
95 ± 2 |
| Decrease > 4% of SpO2 |
7 (16%) |
| SpO2 after 6MWT < 90% | 1 (2%) |
Data are expressed as mean ± SD or number (%).
FEV1: expiratory volume in one second, VC: vital capacity, FRC: functional residual capacity, ERV: expiratory reserve volume, TLC: total lung capacity, DLCO: carbon monoxide diffusing capacity of the lung, pred: predicted value, 6MWT: six-minute walk test.