Tehran University of Medical Sciences The Research in Heart Yield and Translational Medicine (RHYTHM) 3115-7270 2 1 2007 01 15 49 53 Abbasali Rafighdoust Imam Reza Hospital, Department of Cardiology, Mashad University of Medical Sciences, Mashad, Iran. Mohamad Tayebi Imam Reza Hospital, Department of Cardiology, Mashad University of Medical Sciences, Mashad, Iran. Hoorak Poorzand Imam Reza Hospital, Department of Cardiology, Mashad University of Medical Sciences, Mashad, Iran. 2015 10 03 Pulmonary thromboembolism (PTE) has a wide spectrum of presentations, and its cardinal manifestations include chest pain, dyspnea, and syncope. Syncope as an initial presentation of PTE occurs in 10-14% of patients and is not restricted to massive PTEs. It can also occur in the setting of non- massive cases probably due to a vasovagal mechanism or the occurrence of conduction disturbances in preexisting complete left bundle-branch block. The next point discussed here is the use of thrombolytic therapy for submassive PTE with a normal blood pressure while marked right ventricular dyskinesia or dysfunction occurs. https://rhythm.tums.ac.ir/index.php/jthc/article/view/41 https://rhythm.tums.ac.ir/index.php/jthc/article/download/41/39