Effects of Breath Training Pattern “End-Inspir atory Pause” on Respiratory Mechanics and Arterial Blood Gas of Pa tients with COPD

Bｒｅａｔｈｉｎｇｔｒａｉｎｉｎｇｉｓａｎｉｍｐｏｒｔａｎｔａｐ ｐｒｏａｃｈｉｎｒｅｈａｂｉｌｉｔａｔｉｏｎｏｆ ｐａｔｉｅｎｔｓｗｉｔｈｃｈｒｏｎｉｃｏｂｓｔｒｕｃｔｉｖｅ ｐｕｌｍｏｎａｒｙｄｉｓｅａｓｅ（ＣＯＰＤ）．Ｌｏｔｓｏｆｒｅｐｏｒｔｓ（1，2 ）

Effects of Breath Training Pattern "End-Inspiratory Pause" on Respiratory Mechanics and Arterial Blood Gas of Patients with COPD

Objective: In order to explore the mechanism of C hinese traditional breath training, the effects of end-inspiratory pause br eathing (EIPB) on the respiratory mechanics and arterial blood gas were studied in patients with chronic obstructive pulmo nary disease (COPD).Methods: Ten patients in steady stage participating in the stud y had a breath training of regulating the respiration rhythm as to having a pause betw een the deep and slow inspiration and the slow expiration.Effect of the training was observed by visual feedback from the screen of the re spiratory inductive plethysmograph. The dynamic change of partial pressure of oxygen saturation in blood (SpO 2) was recorded with sphygmo-oximeter, the pulmonary mechanics and EIPB were determined with spirometer, and the data o f arterial blood gases in tranquilized breathing and EIPB were analysed.Results: After EIPB training, SpO 2 increased progressively, PaO 2 increased and PaCO 2 decreased, and the PaO 2 increment was greater than the PaCO 2 decrement. Furthermore, the tidal volume increased and the frequency of respira tion decreased significantly, both inspiration time and expiration time were prolonged. There was no significant change in both mean inspiration flow rate (VT/Ti) and expir ation flow rate (VT/Te). The baselines in spirogram during EIPB training had no raise. Conclusion: EIPB could decrease the ratio of the dead space and ti dal volume (VD/VT), cause increase of PaO 2 more than the decrease of PaCO 2, suggesting that this training could impro ve both the function of ventilation and gaseous exchange in the lung. EIPB training might be a breath ing training pattern for rehabilitation of patients with COPD.