Materials and Methods Ultrasound was performed in 120 cases of cardiac enlargement found by clinical manifestation and radiograph, which demonstrated the cardiac thoracic ratio of greater than 0.55. The findings on ultrasound were analyzed.

Conclusion Most of HHD lead to cardiac enlargement. Left atrial enlargement can be found mostly, and right ventricular enlargement is more often than left ventricular enlargement.

结论HHD可引起不同房室腔扩大，左房扩大最常见，右室扩大多于左室扩大；

Pericardial effusion, valvular regurgitation, right cardiac enlargement and pulmonary hypertension, changes in left ventricular systolic function were observed by echocardiogram.

超声心动图显示心包积液，瓣口返流，右心增大及肺动脉高压，左室收缩功能变化；

Objective To evaluate 2 dimensional ultrasound value in the diagnosis of the causes of cardiac enlargement detected by clinical manifestations and radiograph.

目的探讨二维超声对临床及X线检查发现的心脏增大病例的病因诊断价值。

Comprehensive Study of Cardiac Enlargement with 2 D Ultrasound, X-rays and Clinical Manifestations

心脏增大的二维超声与临床、X线综合研究

Moderate to high degree of cardiac enlargement was seen in 62 cases.

62例有中一高度心脏增大（96.8%），仅2例心影大小正常。

His-Purkinje potential recording from body surface on cardiac cycle basis

从体表记录连续心动周期的希&浦电位

Study of ECG Feature Extraction and Classification Based on Multiple Cardiac Cycle Fusion

心电信号多周期融合特征提取和分类研究

Results The mitral annular area were changed throughout the cardiac cycle.

结果二尖瓣环面积在心动周期中不断发生变化。

Effect of Cardiac Cycle on the Esophageal Pressure and Method of Elimination

心动周期对食道内压测定值的影响及其消除方法

Results: The mean arterial pressure and successful cardiopulmonary resuscitation or cerebral resuscitation rate in direct cardiac compression all were significantly higher than that in indirect cardiac compression.

结果：直接挤压术平均动脉压及心肺脑复苏成功率均显著高于间接挤压组。

Results Different external cardiac compression modes and compress depth made different ECG compress waves. Conclusions External cardiac compression and ECG compress waves have significant correlation.

结果胸外按压方式以及按压深度的不同所形成的ECG按压波形也不同。结论有效的胸外按压与所形成ECG按压波形有明显的相关性。

Methods Patients were divided into two groups: Freehand external cardiac compression group, external cardiac compress using cardiopulmonary resuscitation instrument group.

一组使用自动胸外按压心肺复苏器，另一组使用徒手胸外按压。

Development of WFS-1 automatic cardiopulmonary resuscitator for closed chest cardiac compression

WFS-1型自动胸外按压心肺复苏器的研制

Monitoring of ECG compress waves at external cardiac compression has clinic value.

在心肺复苏胸外按压时监测ECG按压波形对胸外按压效果有明显的临床指导意义。

Conclusions: External cardiac compress using cardiopulmonary resuscitation instrument has better effects on increasing rate of spontaneous circulation restoration and shorten the average time of spontaneous circulation restoration and improve the chance for survival with cardiac-respiration arrest than freehand external cardiac compression.

结论：心肺复苏仪胸外心脏按压在提高自主循环率，缩短自主循环恢复时间，改善患者生存机会等方面明显优于徒手胸外心脏按压。

Gradient of Force Transmitting of Cardiac Compression in Human Body during CPR

人体心脏按压存在压力传导梯度

Methods: By means of immunohistochemical ABC technique, the study was performed concerning the distribution of Vasoactive Intestinal Peptide ( VIP) in the canine main cardiac superficial ganglia plexus.

方法：用恒冷箱切片和免疫组化ABC法对犬心脏表面主要神经节丛进行了血管活性肠肽（VIP）免疫组化研究。

Immunohistochemical Research on VIP in the Canine Main Superficial Cardiac Ganglia Plexus

犬心脏表面主要神经节丛VIP免疫组化研究

The cardiac plexus, the emotional Sphere of the Inner Voice ( ANAHATA-CAKRA), called the Source of the Heart, situated in the central region of the thorax or chest.

心神经丛，内在声音的情感区域（心轮），称为心脏的来源，位于胸腔的中间附近。

The postganglionic fibers of superior cervical ganglion ( SCG) are distributed to cardiac plexus and regulate the activity of heart and vessel.

颈上交感神经节的节后神经纤维可分布至心神经丛，影响心脏和血管的活动。