Longterm effects of treatment in patients with chronic airway obstruction.

But in reports of Patients residing ill the Chicago area, a slow decline in ‘entilatorv functioll and a high mortality was oi)served despite continued therapy for the 4 In an attempt to reconcue the seemingly hopeful oi)servations reported from Denver with tile rather gloomy long-term course and prognosis of patients in Chicago, we have undertaken a comparison of the courses and )roglloses of 95 matched patients from the two reported series. Certain differences in the two studies Silould he noted. In Chicago, Patients were enrolled in the