[The role of functional phlebography in the diagnosis of chronic postphlebitic venous insufficiency of the lower extremities].

The work deals with the description of methods for phlebography of the lower extremities with the patient in a vertical pos position with the use of various functional, loading, and pharmacological tests. Such examination makes it possible to recognize the pathological changes, reveal precisely the architectonics of the venous system and the localization of the most changed areas of the venous system, and determine the rate of the venous blood flow. Much attention is paid to preventive measures during phlebographic examination.