声学定量技术评价原发性高血压患者左房功能

目的评价原发性高血压患者左房的功能变化。方法38例正常人为对照组,67例原发性高血压(EH)患者分为高血压无左室肥厚组(NLVH)和高血压伴左室肥厚组(LVH),应用声学定量(AQ)技术观测左房的功能变化。结果与对照组比较,LVH组左房射血分数(LAEF)显著增加,差异有非常显著性意义(P<0.01),LVH组管道容量(CV)则明显下降,差异有显著性意义(P<0.05),高血压组心室舒张末期左房容积(LAEDV)增大,与对照组比较差异有显著性意义(P<0.05)。结论高血压左室肥厚时,左心房泵功能显著增加,储存器功能增强,管道功能减弱。     

克山病病区玉米及酱块对大鼠心肌损伤的实验研究

Objective To investigate the myocardial damage in rats fed with corn from Keshan disease area added with bean puree. Methods Male Wistar rats were randomly divided into 3 groups according to their body weights, and fed with corn, corn from Keshan disease area added with bean puree, corn from non-endemic area. The GSH-Px activity of vena cardalis blood was examined in 1 and 3 months, rats were sacrificed after being fed for 6 months to examine the heart changes with HE stain. Results The three groups of GSH-Px activity were different in 1 and 3 months respectively(F=23.60,72.46, all P<0.01); GSH-Px activity was (181.58±22.15), (44.76±28.59)U/L in rats fed with corn, was (195.03±17.66), (30.38±3.35)U/L in those fed with corn added with bean puree from Keshan disease area, lower than the group fed with corn of non-endemic area[(340.90±95.42), (125.17±13.64)U/L, all P < 0.01]. But the difference of GSH-Px activity between simple corn group and corn adding bean puree groups of Keshan disease area was not obvious(P>0.05). Myocardial damage incidence of the three groups was 3/9,1/9,2/7. Difference among three groups did not have statistical significance(χ2=1.33, P> 0.05). Conclusions Only corn from Keshan disease area may induce myocardial damage pathology change. Adding bean puree into corn does not increase damage.     

地方病调查中随机数字表的应用

在地方病抽样调查过程中,为了获取有代表性的样本,常采用随机化的方法.在实际工作中若调查总体不大的情况下,常通过随机数字表来实现.作者以吉林省克山病病情调查为例介绍随机抽样中随机数字表的使用方法,为地方病现场调查提供参考.     

地方病调查中随机数字表的应用

在地方病抽样调查过程中,为了获取有代表性的样本,常采用随机化的方法.在实际工作中若调查总体不大的情况下,常通过随机数字表来实现.作者以吉林省克山病病情调查为例介绍随机抽样中随机数字表的使用方法,为地方病现场调查提供参考.     

中西医结合救治视网膜中央动脉阻塞（附32例报告）

我们采用中西医结合疗法救治视网膜中央动脉阻塞32例,取得较好疗效,现报告如下。