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主动脉瓣狭窄(AS)的定量诊断是心瓣膜手术以前必要的步骤,通常以临床症状作为判断狭窄的主要依据,从瓣膜植换手术的结果表明,一些症状确实是严重瓣膜病变引起的。实践证明,多年来对AS的定量诊断尚无可靠办法,某些AS病人心电图有左室肥厚、但有的严重瓣膜狭窄者的心电图并无肥厚改变。心音图及颈动膜搏动图已应用多年,如晚期出现增大的收缩期杂音以及颈动脉波峰出现较晚并有震颤,提示有严重狭窄,在许多病例上述改变是很可靠的,但在某些老年病
Quantitative diagnosis of aortic valve stenosis (AS) is a necessary step before heart valve surgery. Clinical symptoms are often used as the main basis for stenosis. The results of valve replacement surgery indicate that some of the symptoms are indeed caused by severe valvular disease. Practice has proved that over the years there is no reliable way to quantitative diagnosis of AS, some patients with left ventricular hypertrophy ECG, but some patients with severe valvular stenosis did not change the ECG. Phonocardiograms and carotid artery pulsation have been used for many years, such as increased systolic murmur in late stage and later occurrence of carotid artery crest, suggesting severe stenosis. In many cases, the above changes are reliable, but in a certain Some geriatric diseases