OBSERVATION OF NONINVASIVE BI-LEVEL POSITIVE PRESSURE VENTILATION FOR THE TREATMENT OF SEVERE ACUTE LEFT HEART FAILURE

Objective To observe noninvasive bi-level positive pressure ventilation for the treatment of severe acute left heart failure.Methods 16 patients with hypoxemia due to severe acute heart failure with non-reaction to the normal treatment received noninvasive bi-level positive pressure ventilation and were monitored under clinical symptoms,signs,traumatic arterial blood pressure and blood gas analysis.Results 16 patients survived and 1 died with success rate of 93.7%.After two-hour therapy,the patients vital signs were stable and PaO 2 and SaO 2 went up.Conclusion Noninvasive bi-level positive pressure ventilation can decrease the pulmonary interstitial and alveolar edema,improve left heart function through adjusting pressure support and end-respiratory positive pressure.It also improve the rate of V/Q,facilitate gas exchange,and promote PaO 2 and SaO 2.