心脏杂音是血流从左心室到升主动脉通过狭窄的主动脉瓣口时产生的湍流引起的噪音。
A heart murmur is simply a noise caused by the turbulence of blood flowing through the obstruction from the right ventricle to the pulmonary artery.
主动脉瓣狭窄是一个讨厌的疾病。
总计358名伴严重主动脉瓣狭窄(特征为因钙化主动脉瓣梗阻的一种心脏病)患者参加了这项实验。
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.
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