Table 3 Forced Oscillation Technique parameters before and after Bronchial Thermoplasty treatment
Parameter | Before BT | After BT | P-value | |
|---|---|---|---|---|
Before bronchodilation | Rrs 5 Hz (cm H2O*s/L) | 3.58 (3.21; 4.24) | 3.70 (2.88; 4.29) | 0.59 |
Xrs 5 Hz (cm H2O*s/L) | −1.23 (−1.68; −0.89) | −1.28 (− 1.81; − 0.95) | 0.21 | |
Rrs 19 Hz (cm H2O*s/L) | 3.17 (2.85; 3.56) | 3.15 (2.80; 3.67) | 0.95 | |
Xrs 19 Hz (cm H2O*s/L) | 0.65 (0.09; 0.99) | 0.63 (−0.04; 0.80) | 0.22 | |
After bronchodilation | Rrs 5 Hz (cm H2O*s/L) | 3.06 (2.73; 3.41) | 3.22 (2.78; 3.63) | 0.08 |
Xrs 5 Hz (cm H2O*s/L) | −1.00 (−1.15; −0.77) | −0.92 (− 1.23; − 0.73) | 0.28 | |
Rrs 19 Hz (cm H2O*s/L) | 2.90 (2.65; 3.09) | 2.97 (2.72; 3.47) | 0.26 | |
Xrs 19 Hz (cm H2O*s/L) | 0.80 (0.56; 1.07) | 0.87 (0.27; 1.08) | 0.21 |