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心肌病的发病率逐渐增多,大多数原因不明。心肌病的分类方法很多,一般多采用Goodwin的分类:(1)肥厚性心肌病:再分阻塞性和非阻塞性两类。(2)充血性心肌病。(3)闭塞性心肌病。(4)限制性心肌病。肥厚性心肌病肥厚性心肌病大多是遗传性的,属常染色体显性遗传,偶亦有获得性者。解剖变化包括非对称性室隔肥厚、细胞结构改变和二尖瓣变化。阻塞性者二尖瓣后叶后面的左室后壁较厚而园,与主动脉瓣狭窄者相类似。非阻塞性者则左心室后壁较薄。室间隔则均增厚。病理检查显示在非阻塞性肥厚性心肌病,
The incidence of cardiomyopathy gradually increased, most of the reasons unknown. There are many ways to classify cardiomyopathy, generally using Goodwin classification: (1) hypertrophic cardiomyopathy: subdivided obstructive and non-obstructive two categories. (2) congestive cardiomyopathy. (3) occlusive cardiomyopathy. (4) restrictive cardiomyopathy. Hypertrophic cardiomyopathy Hypertrophic cardiomyopathy is mostly hereditary, autosomal dominant inheritance, even those who have acquired. Anatomic changes include asymmetric ventricular hypertrophy, changes in cell structure and mitral valve changes. Obstructive mitral valve posterior lobectomy behind the thick wall and the back of the park, and aortic valve stenosis are similar. Non-obstructive left ventricular posterior wall thinner. Ventricular septal thickening. Pathological examination showed that in non-obstructive hypertrophic cardiomyopathy,