Vestn Ross Akad Med Nauk
September 2007
The passage of a pulse wave via an intact segment of a dog's thoracic aorta, its denerved autograft, and thoracic aortal allograft from a dog donor, was studied using equipment for arterial pressure measurement and tensometry of longitudinal and transversal blood vessel deformations at the point of pressure measurement. The frequency characteristics of the equipment were adjusted beforehand. The experiment demonstrated the impossibility of the formation and spread of a normal solitary pulse wave and preservation of laminar blood flow without an intact aortal innervation.
View Article and Find Full Text PDFUsing light and electron microscopic methods, the histogenesis and structural organization of the walls of rat venae cavae and pulmonary veins were studied in prenatal and postnatal periods of development. The special attention was paid to the appearance of the striated myocytes in the walls of these vessels during the process of ontogenesis. The time of initial divergent development of myoblastic differon was established, the stages of differentiation of striated myoblasts and the peculiarities of intercellular junctions were characterized, as well as the innervation and vascularization of the walls of venae cavae and pulmonary veins.
View Article and Find Full Text PDFBetween 1993 and 2002, 41 operations were performed for formation of a vascular access (VA) to conduct hemodialysis using vascular transplants: autogenous veins (8 cases) and PTFE allografts (33 cases). Experience gained with the use of autogenous veins and PTFE allografts for creation of a permanent VA to carry out hemodialysis was summarized and analyzed. An attempt was made to explain the causes of thrombosis of autogenous veins transplanted and allo-vessels implanted on the basis of the new general theory of circulation.
View Article and Find Full Text PDFIn the article a problem of the flow near of elastic surface body whalelike is considered. The opportunity appearance of the flutter on a surface body is shown. Additional capacity, necessary dolphin is designed at navigation in case of occurrence the flutter.
View Article and Find Full Text PDFThis work deals with the liquid flow in an elastic blood vessel. The mechanism of the initiation of standing waves was studied. Results of model experiments, both on the hydrodynamic stand and in the aorta of the living dog are presented.
View Article and Find Full Text PDFThe work deals with one of the least elaborated aspects on the system of microcirculation and is performed, taking into account the functions of histo-hematic and intertissue barriers. For this certain new original investigation methods have been developed, adequate to the problems discussed. The module principle of organization with a distinct functional specialization of the ganglionar and truncal vascular micromodules has been stated.
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