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应用双相气道内正压呼吸机（ＢｉＰＡＰ）对９例慢性阻塞性肺疾病（ＣＯＰＤ）康复期和呼吸衰竭稳定期进行临床观察发现，治疗后动脉血氧分压与治疗前相比显著升高（Ｐ＜０．０１）；肺活量及用力肺活量轻度升高；１例３次发生急性左心衰、急性肺水肿致急性呼衰患者治疗后，病情很快改善；１例阻塞性夜间睡眠呼吸暂停综合征者应用效果满意。该机应用简便、安全，对心率血压无明显影响，为ＣＯＰＤ康复期、急性左心衰兼肺水肿的治疗提供了新途径。
Biphasic positive airway pressure machine (BiPAP) in 9 cases of chronic obstructive pulmonary disease (COPD) recovery and respiratory failure stable period of clinical observation found that after treatment, arterial partial pressure of oxygen was significantly higher than before treatment (P <0.01). The vital capacity and forced vital capacity increased slightly. One case of acute left heart failure and acute pulmonary edema caused acute respiratory failure occurred in 3 cases and the condition improved rapidly. One case of obstructive nocturnal sleep breathing Suspension Syndrome application results satisfactory. The machine is simple, safe and has no significant effect on heart rate and blood pressure. It provides a new way for the treatment of COPD, acute left heart failure and pulmonary edema.