Background: Acute pulmonary embolism (PE) is a common and potentially lethal form of venous thromboembolism (VTE) which is commonly encountered in clinical practice. Most patients die of this fatal condition usually within the first 1 h of the event with mortality rate reaching nearly 10% during this period^.(1)
Objective: The objective of this study was to determine of risk factors and clinical presentation of acute pulmonary embolism at Sohag University Hospitals
patients& Methods: All the patients underwent the following:
(1)  Detailed history was taken. (2) Examination: Full clinical examination. (3) Investigations: (ABG, D. Dimer, CBC, ECG, Echocardiography, and CT Angiography).
Results: As regard risk factors of pulmonary embolism 70% of them have DVT, 42% have dyslipidemia 32% were postoperative, 28% were diabetics, 24% were hypertensive, 22% were smokers and 20% were females taking cocs).
Conclusion: The study show that PE more common in females and the mean age of the studied patients was 45years The most common risk factor is DVT.