Effects of BiPAP Mechanical Ventilation by Nasal Mask on Acute Cardiac Pulmonary Edema Patients

Objective To investigate the effect of bilevel positive airway pressure (BiPAP) mechanical ventilation by nasal mask on acute cardiac pulmonary edema (ACPE). Methods This study included 80 patients with acute cardiac pulmonary edema. 40 patients received BiPAP mechanical ventilation treatment (BiPAP group)and another 40 patients received only general treatments (control group). Before and after the treatment, the blood gas index, blood pressure (BP), heart rate (HR) and breathing rate (RR) were recorded. Results Breathing rate, heart rate and PaCO2 were found to be signifi cantly lower in BiPAP group, and PaO2 and SaO2 were signifi cantly higher (t=2.69~6.89, P0.01). The total effective rate in BiPAP group was 100.00%, while only 64.54% in the control group. Conclusion Comparing with conventional therapies, BiPAP mechanical ventilation can more quickly improve cardiac function, pulmonary edema and hypoxemia of patients with ACPE.