Characteristics of the deventilation syndrome in COPD patients treated with non-invasive ventilation: an explorative study

Table 4 Comparison of changes in both groups

	Patients with deventilation syndrome (n = 11)	Patients without deventilation syndrome (n = 20)	p
Δ After mask removal/2 h
Δ Borg Scale	− 2.36 (2.063)	0.20 (0.894)	< 0.001
Δ VCmax (%)	7.76 (6.39)	3.55 (8.54)	0.144
Δ Inspiratory flow (ml)	7.50 (11.36)	1.58 (6.68)	0.087
Δ after mask removal/4 h
Δ PaCO₂ (mmHg)	− 0.71 (3.14)	0.53 (3.44)	0.340
Δ 6MWT walking distance (m)	54.09 (50.51)	− 0.5 (8.03)	< 0.001

Bold values denote statistical significance
Data are mean (SD)
PaCO₂ capillary carbon dioxide pressure, PaO₂ capillary oxygen pressure, 6MWT 6-min walking test, VCmax maximum vital capacity

ISSN: 1465-993X