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Intruduce impedance cardiography and describe its theoretical background, measuring methods, generation of impedance signals and its clinical meaning,and application of the impedance cardiography.

介绍心阻抗法的工作原理、测量方法、阻抗微分波的产生和临床意义，以及心阻抗法的临床用途。

The patient with ICM is often company with extensive coronary artery disease. CAG and ultrasound cardiography are of decided diagnostic value.

缺血性心肌病患者冠状动脉病变广泛，超声心动图和冠状动脉造影对缺血性心肌病诊断具有决定性价值。

With its dual capsule design and unique three-pattern switch (cardioid, cardioid with -10dB pad and omni), the Snowball can handle everything from soft vocals to the loudest garage band and it's ideal for podcasting.

它独特的双话筒头设计和三种指向性切换设计（心形，带-10dB衰减的心形和全指向），Snowball适用于从轻柔的人声到激烈的乐队。

Department of cardiology, the second affiliated hospital of guangzhou medical college,guangzhou,510260,china

作者单位：1。广州医学院第二附属医院心内科，广州 510260； 2。广州医学院第一附属医院心内科，广州 510120

Early light can be asymptomatic, but the heart murmur before the district will have an impact on children's education and employment, if untreated, will eventually lead to pulmonary hypertension, cardiomegaly, heart failure; some will be complicated by endocarditis, vascular embolization and high blood pressure, life-threatening.

轻者早期可无症状，但心前区杂音将影响患儿的升学和就业，若不进行治疗，最终会导致肺动脉高压、心脏扩大、心力衰竭；有的还会并发心内膜炎、血管栓塞和高血压等，危及生命。

Methods The admitted cardiopathy patients in the same periods were divided into dilated cardiomyopathy group (144 cases) and ischemic cardiomyopathy group (170 cases).

将同期入院的心肌病患者分为扩张型心肌病组(144例)和缺血性心肌病组(170例)。

Objective To study the influencing factors of cardiopulmonary resuscitation in order to improve success rate of CPR.

目的 分析心肺复苏成败的影响因素，探讨如何提高心肺复苏水平。

Results 32 cases are success of the cardiopulmonary resuscitation.

结果心肺复苏成功32例，心肺脑复苏成功15例，复苏后发生多脏器功能衰竭28例。

TEE is of great application value to the diagnosis and rescue of patients treated with cardiopulmonary resuscitation.

心肺复苏中应用TEE检查，提供了支持心泵理论的心脏结构和血流动力学变化的证据。

Methods Clinical diagnosis of cardiomyopathy 13 cases,carditis 11 cases,hypertensive heart failure 9 cases,cardiac infarction 9 cases,and rheumatice heart failure 2 cases were divided in NHYA Ⅱ 7 cases,Ⅲ 29 cases,Ⅳ 8 cases.

临床诊断心肌病13例、心肌炎11例、高血压心脏病心力衰竭9例、心肌梗塞9例、风湿性心瓣膜性2例，共44例按NHYA分类，Ⅱ级7例、Ⅲ级29例、Ⅳ级8例。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。