心室高电压与肥大的传统诊断标准是否适用于数字心电图

心电图的R波、S波或R＋S波的振幅超出正常值者称为心室高电压。分为左室高电压、右室高电压及双侧心室高电压。引起心室高电压的主要病因是各种疾病所致的心室肥大。但心室高电压也常见于束支阻滞、心室预激以及胸壁较薄的健康人。     

左室假腱索引起的心脏杂音及室性早搏的研究

左室假腱索Left ventricular fals tendons简称FT,是1893年Turner在尸检中发现的,由于检查手段所限,临床上无法诊断,又加上它是一种正常变异,一直没被引起足够重视。直到1981年Nishiumrat才用二维超声心动图(2DE)做出明确诊断。由于B超仪不断更新,检出率也逐渐增加,并注意到很多心脏疾患与FT有关。我们观察了106例FT患者,同时也观察了106例无FT患者做对照,发现FT组心脏杂音及室性早搏的发病率明显高于对照组,统计学处理有显著性差异。     

健康人血清CK—MB水平与心室碎裂电位的相关性及意义

观察健康人血清肌酸激酶同功酶ＭＢ与心室碎裂电位切迹数的关系，探讨诊断心肌局灶轻微损伤的方法。方法 选择２０－７１岁的健康人１３０例，用ＵＶ－２６０型紫外分光光度仪检测血清ＣＫ－ＭＢ，ＲＭ－８６型八道生理记录仪与ＳＣ－１６型紫外光线记录器匹配检测ＶＦＰ，并计算Ｎ．用Ｆ检验和相关回归方法进行统计学分析。     

人胚胎和新生儿心室肌心钠素发生的电镜免疫细胞化学研究

用包埋后电镜免疫细胞化学方法，研究了不同胎龄胚胎及新生儿心室股纤维中心钠素的胚胎发生，对心肌纤维内心钠素颗粒进行了体视学分析及统计学处理。结果表明：随着胎龄增长，细胞内肌丝由稀疏逐渐增多然后形成肌原纤维，线粒体的数目也逐渐增多；心钠素颗粒于第５周开始出现，颗粒的数目随胎龄增加而逐渐减少。至妊娠７月时基本消失。     

山羊急性心肌缺血时恶性心律不齐的发生和...

The coronary collateral circulation of goat is very spare, so myocardiac ischemia model of goat can simulate the patient previously with normal coronary circulation and suddenly developing complete occlusion of coronary arteries. In this study 80 Chengdu goats were used, and the branches of their left coronary artery were ligated. Ventricular tachycardia (VT) developed in 23 goats and ventricular fibrillation (VF) in 39 goats. VT and VF both occurred in the early phase of acute myocardial ischemia, and both had 6 min as the median time of onset. In 71 cases data on the weight of myocardiac ischemic area were collected, in which the weight percentage of ischemic area relating to the ventricles of 34 goats with VF was significantly higher than that of 37 goats without VF (35.4 +/- 2.4% vs 19.5 +/- 1.9%). After coronary ligation, 9 cases directly precipitated into VF which could not be defibrillated. In the remaining 62 cases, the weight percentage of ischemic area of 21 cases with VT was higher than that of 41 cases without VT (32.9 +/- 2.8% vs 20.9 +/- 2.1%). The relationships between the incidence of VT or VF and the weight percentage of ischemic area were fitted with logistic curve. The likelihood of occurrence of VT or VF is increased as the weight percentage of ischemia area goes up.