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The Egyptian Heart Journal
Fig. 1 | The Egyptian Heart Journal

Fig. 1

From: Comorbid CAD and ventricular hypertrophy compromise the perfusion of myocardial tissue at subcritical stenosis of epicardial coronaries

Fig. 1

A graphical representation of the relation between the ratio of the perfusion of myocardial tissue supplied by a stenotic epicardial coronary ξa to the perfusion in case of hypothetical absence of stenosis ξ0 and the ratio of the radius of the said stenotic artery (αe)a to the radius in case of hypothetical absence of stenosis (αe)0. Both ratios are presented by absolute numbers. In isolated CAD, the directly proportional relationship is represented by a sigmoid-shaped curve, wherein the perfusion of myocardial tissue supplied by the said stenotic epicardial coronary ξa collapses relatively at a critical stenotic value ϕα. Comorbid CAD and ventricular hypertrophy shift the curve to the right leading to an increase in the critical stenotic value ϕα

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