Noninvasive mechanical ventilation with average volume assured pressure support (AVAPS) in patients with chronic obstructive pulmonary disease and hypercapnic encephalopathy

Table 1 Initial patient assessment results

NIV study groups (All 22 patients)		Mean	SD	P
BMI	BiPAP S/T	26.22	2.87	.99
BMI	BiPAP S/T +AVAPS	24.23	2.62	.99
Age (years)	BiPAP S/T	77.55	6.49	.10
Age (years)	BiPAP S/T + AVAPS	79.82	13.53	.10
APACHE II	BiPAP S/T	18.45	2.50	.86
APACHE II	BiPAP S/T + AVAPS	18.55	2.73	.86
Initial GSC	BiPAP S/T	8.36	1.43	1.00
Initial GSC	BiPAP S/T + AVAPS	8.36	1.63	1.00
Initial pH	BiPAP S/T	7.28	0.02	.45
Initial pH	BiPAP S/T + AVAPS	7.29	0.03	.45

*Statistically significant (P value <.05).
A total 22 patients. 11 patients of group BiPAP S/T and 11 patients of group BiPAP S/T +AVAPS.

ISSN: 1471-2466