[Incidence and quality of collaterals in coronary heart disease estimation of size and function in the angiogram by a score-system (author's transl)].
345 angiograms obtained from consecutively catheterized patients with ischemic heart disease (112 without infarction, 215 with infarction, 18 with possible small infarction) were studied for the presence and quality of collateral coronary vessels. Patients were classified according to one- two-, or three-vessel disease as well as the percentage of coronary occlusion. Collateral quality was quantified using a point system (collateral score) which included four individual criteria: 1) degree of opacification, 2) quality of retrograde filling, 3) extent of collateralization, and 4) flow rate. Good reproducibility was obtained using this approach. The development of 10 various collateral types is dependent upon the stenosed coronary artery. Collaterals are only demonstrable when vessels narrowing exceeds 60 percent. With more severe degrees of stenosis both collateral incidence (%) and score are increased. The individual range of collateral development for any given degree of stenosis varies widely. The coronary score appears to represent a useful, semiquantitative means of assessing the functional significance of collateral vessels in man.
D003097:Collateral Circulation; D017023:Coronary Angiography; D003326:Coronary Circulation; D003327:Coronary Disease / Q000000981:diagnostic imaging* / Q000503:physiopathology; D003331:Coronary Vessels / Q000503:physiopathology; D006801:Humans; D009203:Myocardial Infarction / Q000000981:diagnostic imaging / Q000503:physiopathology
Vorkommen und Qualität von Kollateralen im Angiogramm bei der koronaren Herzerkrankung Wertung der Kollateralen mit Hilfe eines Punktesystems (Score).