[The basic patterns in the development of lymph circulatory failure in the heart]

63 adult rabbits were used to stimulate single physical exercise, acute and relapsing coronary insufficiency, alimentary atherosclerosis and to study adaptive and pathologic changes in the lymphatic channel (LC) of the heart. LC of the heart in animals with alimentary atherosclerosis after cholesterol exclusion from their diet was studied to determine reversibility of these changes. LC of the heart was injected by differently coloured masses and was investigated by the stereoangioscopic method on clarified preparations, on semithin sections and by the electron-microscopic method. Changes in different elements of a lymphatic net were of the stereotype character, as a whole. Morphofunctional reactions determining the development of the chronic insufficiency of the lymph flow in the heart form as successively following phases which change both due to exposition of the pathological process-initiated effect and due to certain endogenic factors arising during arrangement of LC of the heart.