Nava Ann Intern Med 1998; 128:721
•
COPD ARF, multicenter, weaning
•
T-piece trial after 48 hour MV
•
• Passed extubated
•
• Failed randomized
•
• NIPPV
•
• PS
•
By day 60:
22/25 NIPPV
•
(weaned)
17/25 PS
•
Duration of MV: 16.8
+
11.8 PS
•
(P = 0.02)
10.2
+
6.8 NIPPV