[Atherosclerotic plaque hemorrhage as one form of a complicated atherosclerotic lesion].
Atherosclerotic plaque hemorrhage is a form of a complicated atherosclerotic lesion. It is a finding of extravasation of erythrocytes (fresh hemorrhage) or siderophages (old hemorrhage) in the defined atherosclerotic changes. 510 segments of the main epicardial coronary arteries (right coronary artery, anterior interventricular branch of the left coronary artery, circumflex branch of the left coronary artery) were microscopically examined in 50 obduction cases of patients with ischemic heart diseases. Fresh hemorrhage in the atherosclerotic plaque was established in 25 cases, that is in 40 microscopically examined coronary artery segments. It was established in all cases where there was a atherosclerotic plaque rupture, in some segments where process of thrombotic organization occurred, as well as in some segments of arteries which supply the region of early myocardial infarction. All hemorrhages occur inside lipidic and fibrolipidic atherosclerotic changes of intima. The average length of fresh hemorrhage was 0.8 cm. 92.50% of segments with fresh hemorrhages occur in the first 4 cm of the examined arteries. 88% of plaque hemorrhages occur in segments with 76-100% lumen obstruction. Signs of old hemorrhages most often occur in segments with 51-75% and 76-100% lumen obstruction. Siderophages mostly occur in complicated atherosclerotic changes and thrombotic organization.
Vucković
D
D
Medicinski fakultet, Novi Sad.
Vucković
N
N
D003324:Coronary Artery Disease / Q000473:pathology*; D003331:Coronary Vessels / Q000473:pathology*; D006470:Hemorrhage / Q000473:pathology*; D006801:Humans; D009203:Myocardial Infarction / Q000473:pathology
Krvarenje u ateroskleroznom plaku kao jedan od oblika komplikovane aterosklerozne lezije.