The Effect of Intermittent. Negative Pressure Ventilation and Long-term Oxygen Therapy for Patients With COPD – Methods
The remaining 35 (denoted as group A, date of enrollment from 1984 to 1986) formed the group in which we evaluated the effects of LTOT. In this group, the flow rate of oxygen was individualized in order to maintain the Pa02 value above 60 mm Hg and to avoid harmful changes in PaC02. All patients but one stopped smoking at the beginning of the follow-up. The hemoglobin carbon monoxide values were checked monthly. buy asthma inhalers
Forty-four patients with chronic respiratory insufficiency (group B, date of enrollment from 1976 to 1982) were used as a control group. These patients, who were admitted to our respiratory ICU for ARF, were not prescribed LTOT after discharge. The selection of the patients for the control group comes from the period from 1976 to 1982 where no home treatment with oxygen was prescribed at our institution. Furthermore, only patients in whom the measurements of respiratory function were available were included.
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