The intravital and posthumous changes of the venous system of the heart were studied in patients with chronic heart failure (CHF). Using the method of computer spiral tomography, the increase of the diameter of subepicardial and anterior cardiac veins, as well as of the coronary sinus, was detected that correlated with the stages of heart failure development. The increase of a total thickness of the veins wall at the expense of tunica media was recorded at the initial stages of CHF, which was later followed by the decrease of wall thickness due to the development of connective tissue.
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