Effects of comprehensive pulmonary rehabilitation therapy on pulmonary functions and blood gas indexes of patients with severe pneumonia

In this study we try to observe the effects of comprehensive pulmonary rehabilitation therapy on pulmonary functions and blood gas indexes of patients with severe pneumonia during mechanical ventilation. A total of 120 patients with severe pneumonia were selected and divided into the experimental group (n=60) and the control group (n=60) through a random number table. Conventional therapy for severe pneumonia was applied to patients in both groups, and the experimental group was additionally treated with comprehensive pulmonary rehabilitation therapy, including warming-up exercise before training, respiratory function exercise, respiratory muscle training, health education, psychological support and nutritional intervention. The pulmonary function indexes, blood gas indexes, Borg index scores and 6-min walk distance (6MWD) of the two groups of patients were evaluated before treatment and at 6 months after treatment, respectively. In the control group, there were statistically significant differences only in forced expiratory volume in 1 sec (FEV1), ratio of FEV1 to forced vital capacity (FEV1/FVC), partial pressure of O2 (PaO2), arterial partial pressure of carbon dioxide (PaCO2), Borg index and 6MWD after treatment compared with those before treatment (P0.05). In the experimental group, all the indexes after treatment were statistically different from those before treatment and those after treatment in the control group (P