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Aortic stenosis the names of diseases: aortic valve stenosis respective areas: the chest clinic departments: Department of Cardiology, Cardiothoracic Surgery, signs and symptoms: palpitations, arrhythmia, heart failure, shock, cyanosis, cough, sudden death, heart sound abnormal aortic stenosis Introduction
Normal aortic valve area over 3.0cm2, when the valve area is reduced to 1.5cm2 when mild stenosis; 1.0cm2 when moderate stenosis; <1.0cm2 when severe stenosis, rheumatic valvular aortic stenosis accounts for about disease in 1 / 4, male common, often accompanied by mitral valve regurgitation and aortic stenosis knowledge of the etiology of aortic stenosis: aortic stenosis (aorticstenosis) aortic stenosis by the wind . symptoms: (a) symptoms of left ventricular compensatory ability of the larger, more obvious . even if there is aortic stenosis of the examination: (a) X-ray examination of left Xinyuan Yuan Lung, heart shadow is not. Common aortic stenosis . The differential diagnosis of aortic stenosis: aortic valve area found the bottom of the heart ejection systolic murmur, you can take the initiative . aortic stenosis diagnosis prevention: outcomes in patients with aortic stenosis can be asymptomatic for many years, but most suffer from the complications of aortic stenosis .: The disease can be complicated by the following diseases: (a) 50 . congestive heart failure treatment for aortic stenosis: (a) appropriate medical treatment avoid excessive manual labor and str


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What are the performance of aortic stenosis and how to diagnose?1. Symptoms of common men, simply a rare rheumatic aortic stenosis, most of concomitant regurgitation and (or) mitral valve disease.
(1) left ventricular decompensation: mild to moderate aortic stenosis can be asymptomatic for many years, the autopsy found that about 5% of patients with aortic stenosis may be no obvious symptoms and sudden death.
(2) left ventricular decompensation: severe aortic stenosis with the characteristic symptoms of angina, syncope and heart failure.
angina: angina aortic stenosis, often prompted valve area is less than 0.8cm2, not easy to distinguish angina and coronary heart disease, angina, aortic stenosis may be due to produce cardiac hypertrophy caused by aerobic increase and decrease in coronary blood flow relative lack of oxygen, causing subendocardial myocardial ischemia, with or without angina, according to statistics, about 50% over the 40-year-old co-exist with coronary heart disease in patients with aortic stenosis.
syncope: labor, often in the supine position or a sudden shift from the upright position, eyes appear black, or short-term loss of consciousness, which produces the same mechanism may be associated with angina, myocardial oxygen demand increases the myocardial oxygen supply is reduced , exertional syncope is due to peripheral expansion of the labor, but no corresponding increase in cardiac output, orthostatic syncope when standing due to a sudden increase in cardiac output can not, and sometimes treatment of sublingual nitroglycerin angina Syncope can also occur, the small dose of nitrate can cause significant relaxation of peripheral vein, resulting in reduced blood leaving the heart Huixin decreased preload; when the dose increases, peripheral resistance relaxation of small arteries also appeared, resulting in left ventricular afterload also down, but no corresponding increase in cardiac output, resulting in cerebral circulation insufficiency, in addition, severe arrhythmia caused by myocardial ischemia, such as sustained ventricular tachycardia, a high degree atrioventricular block, severe sinus bradycardia , also can cause syncope or sudden death, with median survival of patients with syncope or angina from 2 to 5 years.
left heart failure: exertional dyspnea from early on to develop paroxysmal nocturnal dyspnea, orthopnea and acute pulmonary edema, early heart failure may be related to left ventricular diastolic dysfunction; late stage and systolic dysfunction, aortic stenosis with left heart failure in patients with life expectancy less than 2 years.
sudden cardiac death: can be used and the first symptom of aortic stenosis, may have repeated episodes of angina or a history of syncope, sudden death, mostly because of acute myocardial ischemia induced ventricular fibrillation or cardiac arrest related.(1) left ventricular decompensation:
apex beat to the left under the shift.
apex palpable to the slow lifting of the impulse; systolic aortic valve area can reach small tremor.
cardiac dullness to the left under the expansion.A. aortic valve area systolic murmur: the aortic valve area heard a loud (


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