Assertion: vasodilator | /r/CapableOf | improve the oxygen supply/demand ratio
Facets:
value: primarily
type: DEGREE
value: by decreasing demand
type: MANNER
Source sentences:
text: Anginal patients benefit from arterial dilators because by reducing afterload on the heart, vasodilators decrease the oxygen demand of the heart, and thereby improve the oxygen supply/demand ratio.
text: Vasodilators improve the oxygen supply/demand ratio primarily by decreasing demand through the reductions in afterload and preload.