Although international researches into the hemodynamics of type B aortic dissection are well under way now, the difficulty in harvesting the aortic dissection flap is keeping us away from its changes of mechanical properties during the course of disease. This article reviews the studies on the relationships between the mechanical properties of type B aortic dissection and its development. And the changes of biomechanics of the intimal flap and its effect on the hemodynamics, the wall stress and the timing choosing of the operation are emphasized, in order to help us to predict the clinical disease of patients and study more about the hemodynamics of chronic dissection model of biomaterial in vitro in near future

Vascular complications are commonly associated with COVID-19 infection. Increasing reports suggest a close relationship between COVID-19 and venous thromboembolic diseases, including deep vein thrombosis and pulmonary embolism. Furthermore, COVID-19 has been linked to various aortic diseases such as aortic valve stenosis, aortic thrombosis, abdominal aortic aneurysm, aortic dissection, and limb ischemia. Consequently, understanding the causes and treatment of these vascular complications has become a critical aspect of comprehensive COVID-19 management. This article provides a review of aortic diseases and venous thromboembolic diseases that may be associated with COVID-19, aiming to explore potential mechanisms underlying the development of these vascular conditions and discuss strategies for preventing thrombosis in COVID-19 patients.

Vascular complications are commonly associated with COVID-19 infection. Increasing reports suggest a close relationship between COVID-19 and venous thromboembolic diseases, including deep vein thrombosis and pulmonary embolism. Furthermore, COVID-19 has been linked to various aortic diseases such as aortic valve stenosis, aortic thrombosis, abdominal aortic aneurysm, aortic dissection, and limb ischemia. Consequently, understanding the causes and treatment of these vascular complications has become a critical aspect of comprehensive COVID-19 management. This article provides a review of aortic diseases and venous thromboembolic diseases that may be associated with COVID-19, aiming to explore potential mechanisms underlying the development of these vascular conditions and discuss strategies for preventing thrombosis in COVID-19 patients.