[The concept of "dynamic" coronary artery stenosis].

  title={[The concept of "dynamic" coronary artery stenosis].},
  author={Wolf Rafflenbeul and Paul Robert Lichtlen},
  journal={Zeitschrift fur Kardiologie},
  volume={71 7},
The present understanding of the pathogenesis of myocardial ischemia is primarily based on the concept of either a high-grade "fixed" coronary artery obstruction or a spastic vasoconstriction of an epicardial coronary artery. Both these mechanisms do not sufficiently explain the variable clinical syndromes of angina pectoris, particularly not the variation in anginal threshold experienced by many patients. Therefore, the concept of a variable vasoconstriction ("functional component… CONTINUE READING
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