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Table 1 Maximal atherosclerotic lumen diameter reduction and number of main arteries with severe (≥ 70%) stenosis

From: Ultrasound imaging versus morphopathology in cardiovascular diseases. Coronary collateral circulation and atherosclerotic plaque

Source Acute myocardial infarct Sudden death unexpected Non cardiac atherosclerotic Patients Accidental death in normal people
  1st chronic 1st chronic   
Cases 145 55 133 75 100 97
% Lumen reduction       
   0 3 - 10 - 7 8
   <50 3 1 18 - 10 20
   50–69 10 - 18 5 17 31
   70–79 30 8 21 8 11 19
   80–89 45 11 39 14 24 13
   ≥ 90 54 35 27 48 31 6
No. arteries ≥ 70%       
   1 61 16 40 13 26 22
   2 49 22 34 26 18 13
   > 3 19 16 13 31 22 3
  1. 1st episode, in apparently normal people without extensive monofocal myocardial fibrosis Chronic, in subjects with history of coronary heart disease and/or extensive myofibrosis.