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近几年国外报道用短程家庭氧疗(LTDO_2)治疗低氧血性COPD 患者,对降低肺动脉高压,改善其存活率,预防肺心病的发生等方面取得一定疗效。我们
In recent years, foreign reports using short-range home oxygen therapy (LTDO_2) in patients with hypoxemia and COPD, to reduce pulmonary hypertension, improve its survival rate, prevention of pulmonary heart disease and achieved some results. we