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本文研究肥厚型心肌病患者左室肥厚和功能障碍与室速发生的关系。对象和方法超声心动图确诊的肥厚型心肌病(HC)患者69例,其中男性占44%,平均年龄45(16～17)岁,心功能Ⅰ级30例,Ⅱ级22例,Ⅲ级17例,绝大多数患者(91%)检查前停服抗心律失常药物。记录72小时 AECG 观察每24小时的室上性和室性早搏次数及室上速和室速的发生率。二维超声心动图采用胸骨旁短轴切面测定左室舒张末期与收缩末期内径,计算缩短分数(%)。从胸骨旁短轴切面(二尖瓣、乳头肌、心尖)三个水平十个节段测量左室总的肥厚程度并记分。多普勒超声心动图测定的舒张功能指标有1、舒张早期血流峰速(E)2、舒张晚期血流峰速(A)3、E/A 比值4、等容舒张时间5、舒张早期血流持续时间6、舒张早期血流平
This article studies the relationship between left ventricular hypertrophy and dysfunction and ventricular tachycardia in patients with hypertrophic cardiomyopathy. Subjects and Methods Echocardiography confirmed hypertrophic cardiomyopathy (HC) in 69 patients, of which 44% of men, with an average age of 45 (16 to 17) years of age, cardiac function grade Ⅰ 30 cases, Ⅱ grade 22 cases, Ⅲ grade 17 For example, the vast majority of patients (91%) stopped taking anti-arrhythmic drugs before the test. AECG was recorded for 72 hours to observe the number of supraventricular and ventricular premature beats and the incidence of supraventricular and ventricular tachycardia every 24 hours. Two-dimensional echocardiography was used to measure left ventricular end-diastolic and end-systolic diameters using a paraaxial paraxial section to calculate the shortening fraction (%). From the parasternal short axis view (mitral valve, papillary muscles, apex) ten levels of three levels of left ventricular total hypertrophy measured and scored. Doppler echocardiography measured diastolic function index 1, peak early diastolic blood flow (E) 2, peak diastolic blood flow (A) 3, E / A ratio 4, isovolumic relaxation time 5, early diastole Blood flow duration 6, diastolic early blood flow level