[Embryology, anatomy and rare pathologies of the popliteal artery: Peculiarities of surgical treatment].

Knowledge of anatomical variations of the division of the popliteal artery and specific lesions of the arterial segment involved is necessary for the surgeon, traumatologist-orthopaedist, vascular surgeon. The article contains a review of recent literature data on the prevalence of different variants of branching patterns of the arteries of the crus, also providing a detailed discussion of embryological development of the arterial system of the lower extremities, in many ways explaining the appearance of rare pathologies of the popliteal artery, such as for example popliteal artery entrapment syndrome. Particular attention is paid to cystic damage of the popliteal artery, describing currently known theories of the development of this rare pathology, this is accompanied by sharing own experience in surgical treatment of the patients involved.

[Histochemical characteristics of adrenergic myocardial and adrenal fibers in experimental narrowing of the aorta and pulmonary artery].

Ligation of the aorta or the pulmonary trunk was the method of experimental overloading of heart ventricles. Histochemical studies indicated activation of mediator chain of the sympatho-adrenal system. Catecholamines content in the nervous plexus of the overloaded ventricle did not change but there was an increase of their content in the medullary layer of the adrenals.

[Morphologic criteria of the adaptation of the vascular bed of the myocardial ventricles in acute massive embolism of the pulmonary arteries in an experiment].

Acute massive pulmonary embolism was induced in 94 random-bred dogs. There were 3 groups of the time control (0, 1 and 6 hrs) and 4 experimental groups (1- and 6-hrs compensated, 1- and 6-hrs decompensated). Favorable signs of the vascular adaptation: moderate arterial plasmorrhagia; lack of blood stasis, heterogeneity of metabolic profiles of arteries; prevalence of anaerobic glycolysis; some prevalence of catabolic reactions over anabolic reactions.