Neural versus pneumatic control of pressure support in patients with chronic obstructive pulmonary diseases at different levels of positive end expiratory pressure: a physiological study

Table 1 Patient demographics

Patient	Gender	Diagnosis	APACHE II	Days on MV	FiO₂	C_RS	R_RS	PEEPi_STAT	FEV1
					%	ml/cm H₂O	cm H₂O/l/s	cm H₂O	% predicted
1	M	AECOPD, pneumonia, type 2 respiratory failure, pulmonary encephalopathy	32	5	40	33	19	6	56
2	M	AECOPD, pneumonia, type 2 respiratory failure	33	6	40	43	15	8	48
3	M	AECOPD, pneumonia, type 2 respiratory failure, septic shock	22	4	40	40	16	6	62
4	M	AECOPD, pneumonia, type 2 respiratory failure, pulmonary encephalopathy	34	4	40	42	18	5	41
5	M	AECOPD, pneumonia, type 2 respiratory failure, pulmonary encephalopathy	35	3	40	30	16	5	58
6	M	AECOPD, pneumonia, type 2 respiratory failure, pulmonary encephalopathy	33	2	40	26	16	6	55
7	M	AECOPD, pneumonia, type 2 respiratory failure, pulmonary encephalopathy	31	5	40	27	21	5	38
8	F	AECOPD, pneumonia, type 2 respiratory failure, pulmonary encephalopathy	32	5	40	31	27	5	47
9	M	AECOPD, pneumonia, type 2 respiratory failure, septic shock	42	8	40	42	23	5	46
10	M	AECOPD, pneumonia, type 2 respiratory failure, pulmonary encephalopathy	30	1	40	40	26	5	50
11	F	AECOPD, pneumonia, type 2 respiratory failure, pulmonary encephalopathy	31	2	40	23	24	6	37
12	F	AECOPD, pneumonia, type 2 respiratory failure, pulmonary encephalopathy	34	1	50	20	17	8	44
Mean			32.4	3.8	40.8	33.1	19.8	5.8	48.5
SD			4.5	2.1	2.9	8.1	4.2	1.1	8.0

APACHE acute physiology and chronic health evaluation, AECOPD acute exacerbation of chronic obstructive pulmonary disease, MV mechanical ventilation, C_RS compliance of respiratory system, R_RS resistance of respiratory system, PEEPi_STAT static intrinsic positive end expiratory pressure, FEV1 forced expiratory volume in one second

ISSN: 1364-8535