[Regional venous hypertension as a factor of compensation for microcirculatory impairments in chronic obliterating diseases of lower-limb arteries (state of the art)].

A thorough analysis of the literature and own data confirmed a lively interest of vascularsurgeons in alterations in venous haemodynamics in patients presenting with chronic obliterating diseases oflower-limb arteries. The presence of close relationships between impaired arterial and venous blood flow and a compensatory pattern of the development of venous hypertension in the ischaemia zone was proved. This should be taken into consideration during conservative therapy of patients sufferingfrom chronic obliterating diseases of lower-limb arteries, and while working out novel types of surgical interventions, as well as for more adequate interpretation of pathophysiological peculiarities of the existing disease.

[Morphological characterization of arteriovenous shunts in the lower limbs]. / Morfologicheskaia kharakteristika arteriovenoznykh shuntov v nizhnikh konechnostiakh.

This paper describes the results of anatomohistological examination of a typical arteriovenous shunt (AVS) harvested from the leg. It has been revealed that the shunt structure is in full agreement with its functional aims. This manifests by the well-developed muscular layer (comparable with the muscular layer of the great artery) and developed adventitia in which the collagen fibers determine the rigidity and resistance to the intravascular blood pressure. The authors substantiate the hypothesis of the role played by the AVS in regulation of peripheral circulation as its indispensable constituent.