Patients with low-gradient aortic stenosis and reduced LVEF, compared with patients with high-gradient aortic stenosis, have worse clinical outcomes.

In healthy individuals with a normal valve, minimal energy is required ... Additionally, the LV-aortic gradient decreases with progressively increasing LV systolic dysfunction.

The chest radiography may reveal a normal cardiac size since ... Doppler is used to quantify the severity of aortic stenosis by measuring the pressure gradient across the aortic valve and by ...

Even in early aortic stenosis there is no gradient at rest ... helps normalize wall stress and maintain cardiac output in the normal range. Since there is little hemodynamic consequence to ...

The normal aortic systolic/diastolic pressure is 120/80 mmHg and the normal pulmonary arterial pressure is 25/5 mmHg. Thus in systole there is an average of a 95 mmHg gradient causing a left to ...