[CHANGE IN THE CONDITION OF LOWER LIMB VEINS IN COSMONAUTS ON LONG-DURATION MISSIONS].

The paper reports changes in the main parameters of the lower limb veins in 36 cosmonauts in the course of 6-month space missions. Major reduction in the leg volume was shown in all cosmonauts, as well as a significant increase of venous capacity and compliance. Rate of vein filling exhibited different trends, i.

CHANGES IN MAIN VEIN CHARACTERISTICS OF COSMONAUT'S LOWER EXTREMITIES IN THE COURSE OF YEAR-LONG SPACE MISSIONS.

Leg venous measurements were performed in two cosmonauts during the 379-d "Mir" mission (K-1 and 340-d ISS mission (K-2). The paper presents individual changes in venous capacity, distention and filling rate in the legs of these two cosmonauts, and 23 cosmonauts on 6-mos. missions as controls.

[New rules of registration medical (dental) products - steeplechase].

The article describes, from the perspective of new regulations, the procedure of state registration of medical (dental) of products, acting on the territory of the Russian Federation.

[Normal values of the major parameters of lower limb veins in Russian cosmonauts prior to flight and in healthy untrained subjects].

The article presents normal values of the major parameters of lower limb veins in cosmonauts during preparations for space flight and volunteers leading a common life. The authors report the results and discuss the causes for differences in normal leg venous parameters in these groups of subjects. Incomparability of measurements made in cosmonauts and common people is demonstrated.

[Developing the methodology of examining the lower limb veins in cosmonauts for the space medicine practice].

The article centres on development of a methodology for evaluating the function of lower limb veins of cosmonauts in microgravity. The whys and wherefores of the choice of occlusive plethysmography equipment and procedure are explained. Much place is given to arguments for the requisite body and limb positioning during venous plethysmography pre launch and on return from space flight.