Evaluation of the Effectiveness of Non-invasive Ventilation on the Reperfusion Pulmonary Edema Post Pulmonary Artery Angioplasty in the Post Embolic Pulmonary Hypertension

The purpose of this study is to determine whether Non Invasive Ventilation are effective in prevention of reperfusion pulmonary edema after pulmonary artery angioplasty. Our hypothesis is that administration of Non Invasive Ventilation during the procedure and systematically in post procedure period is a protective factor against the development and severity of reperfusion pulmonary edema.