Effects of Lung Expansion Therapy on Lung Function in Patients with Prolonged Mechanical Ventilation

Table 2

Comparison of weaning parameters and lung mechanics values between groups.

	IPPB ()	IPPB + PEEP ()	Control ()
Weaning profiles
(mL)
Pre	240.4 ± 57.2	221.8 ± 157.4	293.9 ± 168.9
Post	292.5 ± 116.3	223.9 ± 110.3	243.9 ± 140.4
RR (bpm)
Pre	25.4 ± 10.9	24.2 ± 11.7	23.6 ± 8.0
Post	22.8 ± 6.6	23.1 ± 9.4	25.2 ± 6.5
MV (L)
Pre	6.6 ± 2.8	4.3 ± 1.4	6.6 ± 3.3
Post	6.1 ± 2.8	4.7 ± 2.9	5.8 ± 3.3
RSBI
Pre	111.3 ± 49.5	161.8 ± 71.2	102.2 ± 62.4
Post	87.5 ± 25.4	137.4 ± 93.2	135.9 ± 82.2
MIP (cmH2O)
Pre	33.8 ± 13.7	29.9 ± 15.0	38.0 ± 18.3
Post	36.9 ± 9.8	37.0 ± 16.5	40.6 ± 17.2
Lung mechanics
Lung compliance (mL/cmH2O)
Pre	48.2 ± 22.7	40.9 ± 22.4	34.4 ± 10.6
Post	55.4 ± 37.2	44.8 ± 24.8	33.9 ± 11.3
Airway resistance (cmH2O/L/s)
Pre	7.6 ± 4.7	9.7 ± 5.2	9.7 ± 4.7
Post	7.9 ± 6.1	8.8 ± 3.9	9.3 ± 6.5

: tidal volume; RR: respiratory rate; MV: minute volume; RSBI: rapid shallow breathing index; MIP: maximal inspiratory pressure.
All values are expressed as mean ± SD. Within-group comparison, pre versus post, .