aortic stenosis

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What are the symptoms of aortic stenosis?
主動脈狹窄可能是必要的。
Activity may be limited in children who have moderate aortic stenosis prior to repair. For instance, competitive sports that require endurance may be restricted.
中等程度的主動脈狹窄的患兒在手術(shù)前可能要限制活動。例如，需要耐力的競爭性運動可能要限制。
A total of 358 patients with severe aortic stenosis, a heart disease characterized by obstruction of the aortic valve due to calcification, participated in the trial.
總計358名伴嚴重主動脈瓣狹窄（特征為因鈣化主動脈瓣梗阻的一種心臟?。┗颊邊⒓恿诉@項實驗。

Without surgery, however, the patients with severe aortic stenosis invariably decline and risks of death are quite high.
FORBES: Breakthrough Heart Valves: How Will Patients Decide?
But there is at least a theoretical reason that Zetia might succeed in aortic stenosis where statins have not.
FORBES: Another Blow For Merck And Schering
"Overall, I'm very pleased with the fact that intense cholesterol lowering reduces coronary events in patients with aortic stenosis, " said Braunwald.
FORBES: Another Blow For Merck And Schering

a narrowing of the heart valve that supplies the aorta (= the body's largest artery), reducing the blood flow to the aorta