Bronchial thermoplasty reduces airway resistance

Respiratory Research

Table 1 Effect of BT on Lung Function

	Before treatment	One Lung treated	Both Lungs treated	p
Pre BD FEV1 (l)	1.26 ± 0.60	1.36 ± 0.71	1.42 ± 0.68	0.069
Post BD FEV1 (l)	1.42 ± 0.67	1.55 ± 0.80	1.54 ± 0.71	0.052
VC (l)	2.46 ± 0.84	2.51 ± 0.80	2.64 ± 0.81	0.049
TLC (l)	5.52 ± 1.10	5.56 ± 1.19	5.51 ± 1.16	0.470
FRC (l)	3.48 ± 0.91	3.59 ± 1.08	3.42 ± 0.92	0.250
RV (l)	3.00 ± 0.70	2.94 ± 0.90	2.79 ± 0.80	0.004
Raw (cmH₂O.s.l⁻¹)	10.47 ± 5.30	9.96 ± 5.18	8.38 ± 5.19	0.005
sRaw (cmH₂O.s)	41.1 ± 26.2	39.8 ± 26.3	33.1 ± 24.2	0.003
sGaw (cmH₂O.s)⁻¹	0.035 ± 0.024	0.039 ± 0.035	0.047 ± 0.036	0.013

FEV1 Forced expiratory volume 1-s, VC Vital Capacity, TLC Total Lung Capacity, FRC Functional Residual Capacity, RV Residual Volume, Raw Total Airway Resistance, sRaw Specific Airway Resistance, sGaw Specific Airway Conductance

ISSN: 1465-993X