The Effect of Intermittent. Negative Pressure Ventilation and Long-term Oxygen Therapy for Patients With COPD – Results
Table 1 shows the anthropometric data, the blood gas analysis measurements, and the spirometric values obtained from the two groups of patients. These data indicate that group A presented a more marked degree of bronchial obstruction and a more severe hypoxemia and hypercapnia at discharge.
Thirty patients (86 percent) of group A and 32 patients (73 percent) of group В presented relapses of ARF during the follow-up with a total number of 1 to 11 episodes per patient in group A (mean ± SD = 3.31 ± 2.86) and 1 to 8 episodes per patient in group В (mean±SD = 1.95 ±2.1). Each episode was treated with our conservative ventilatory method. The values of RM of the two groups were similar (RM = 0.09 ± 0.08 in group A, RM = 0.13 ± 0.22 in group B). The disease-free interval between the beginning of follow-up and the first relapse was 10.616.5 and 12.9 ±12.1 months in groups A and B, respectively. Twenty-one (48 percent) patients of group В and 20 (57 percent) of group A had a relapse of ARF during the first 12 months of follow-up.
Read the rest of this entry »