RESUMEN
Objective To explore the treating effects of COPD(chronic obstructive pulmonary disease)patients with acute exacerbation of chronic respiratory failure by the BiPAP Synchrony(Bi-level positive airway pressure).Methods45 cases of COPD patients with acute exacerbation of chronic respiratory failure are randomly divided into the observation group(23 cases)and the control group(22 cases).For the observation group,beside routine treatment,non-invasive treatment on BiPAP Synchrony is adopted.For the control group,Nikethamide is added in the routine treatment.Compare patients' heart beat rates,breathing rates and oxygen concentrations as well as patients' own feeling in these two groups.ResultsIn the observation group,the patients' heart beat rates,breathing rates and oxygen concentrations as well as patients' own feeling are better than those in the control group(P