[Site and shape of the most severe stenoses in coronary arteries and their relationship to the risk factors. Postmortem findings (author's transl)].
Out of a great number of hearts investigated post-mortem by coronary arteriography and quantitative histology, 437 coronary arteries of 202 hearts had severe stenoses with a lumen reduction to less than 50 per cent. Mainly these most severe obstructions lay between 2 and 5 cm behind the aortic ostium. In the right coronary artery the frequency curve showed a smaller peak, a smaller decrease, and an inconsiderable second peak in the periphery. Perhaps the slow calibre reduction of the right coronary artery is significant for these findings. The narrowed lumen mostly lay a little eccentric and had an oval shape. A slit-like shape was a rare finding. Only in 20 per cent of the severe stenoses a normal intima was preserved in parts of the circumference of the coronary artery. Among 113 patients the following risk factors were known: hypertony, diabetes mellitus, cigarette smoking and hypercholesterinemia. Significant differences in the localisation of the most severe stenoses were not recognizable under the influence of these risk factors.
D000368:Aged; D000792:Angiography; D001344:Autopsy; D017023:Coronary Angiography; D003327:Coronary Disease / Q000473:pathology*; D003331:Coronary Vessels / Q000473:pathology*; D003925:Diabetic Angiopathies / Q000473:pathology; D005260:Female; D006801:Humans; D006937:Hypercholesterolemia / Q000150:complications; D006973:Hypertension / Q000150:complications; D008297:Male; D012907:Smoking
Postmortale Untersuchungen über Lokalisation und Form der stärksten Stenosen in den Koronararterien und ihre Beziehung zu den Risikofaktoren.