Catheter-Directed Pulmonary Reperfusion in Treatment of Pulmonary Embolism Patients

* Primary objective: to evaluate the success and mortality rates of catheter-directed reperfusion therapy in comparison to traditional use of systemic intravenous fibrinolytic therapy, will focus at safety of such management measured by in-hospital mortality and prevalence of severe adverse events. * Secondary objective: to assess the feasibility of catheter-directed reperfusion in management of intermediate and high risk pulmonary embolism in Assiut University hospital and its reflection on pulmonary artery pressure