[Artificial venous valves]

Abstract

Venous diseases seem to be a large social problem. Chronic venous insufficiency, which is the most well-known venous disease, can be caused by high blood pressure in veins. The increase in pressure may cause the vein wall weakness and may even lead to damage venous valves. There are many different methods of treatment of chronic venous insufficiency: surgical and non-surgical. A new therapeutic approach is the use of artificial venous valves. Artificial venous valves can be classified into synthetics, xenografts and allografts. Different types of artificial venous valves are presented based on the analysis of literature reports. A variety of techniques have been used clinically. Improved venous hemodynamics and valve competency have been demonstrated. We presented advantages and disadvantages of described artificial venous valves. The majority of these valve studies await confirmation over extended periods of time. This paper also describes two types of artificial venous valves, which were analyzed by computer simulation.