Clinical study of Hypercapnia in patients with chronic respiratory failure

Objective Clinical study of Hypercapnia in patients with chronic respiratory failure. Methods The study object were 60 cases patients with chronic respiratory failure, age ranged from 60 to 75 years old, mean 65.2 years old. Male 39 cases, female patient 21 cases. Group A who died after Long-term Oxygen Therapy, Group B who became better after Long-term Oxygen Therapy. Then evaluate and analysis analyze the follow-up result. Results Group A 18 cases (30%) died of respiratory failure, 3 cases (5%) died of other reason, Group B 39 cases became better. Group A 8 cases 45≤PaCO255mm Hg, 6 cases 55≤PaCO255mm Hg, 4 cases PaCO255mmHg. Group B: 15 cases 45≤PaCO255mmHg, 14 cases 55≤PaCO255mmHg, 10 cases PaCO255mmHg. Group A and B have not significant difference (P=0.6928) of PaCO2. Conclusions hypercapnia should not be considered an ominous sign in patients with chronic respiratory failure during long-term oxygen therapy. Hypercapnia observed in chronic respiratory failure does not necessarily need to be corrected during long-term oxygen therapy.