Thrombosis and embolism are among the most common causes of death worldwide and, in addition to venous thromboembolism with the two main manifestations of deep venous thrombosis and pulmonary embolism, also include arterial thrombotic disease such as myocardial infarction, stroke and systemic arterial embolism. It is often the interaction of several predisposing factors that leads to the formation of an intravascular thrombus. Changes in the vascular wall, the blood flow and the composition of the blood (Virchow's triad) play a decisive role in both the arterial and venous vascular systems. The management of thromboembolic diseases requires a dedicated clarification of the cause and classification of the disease process in order to minimize the risk of recurrence and embolic complications through differentiated antithrombotic therapy. For this purpose, a risk-benefit analysis based on the individual case and regular reassessment are of particular importance. In this article, the pathophysiological concepts of venous and arterial thrombosis and the main therapeutic implications resulting from this are reviewed.
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