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- External constraint was present in 15 patients and was completely abolished by both biventricular and left ventricular pacing (P<0.05). 目前存在外部制约因素的15例患者，通过双心室和左心室起搏都已经完全去除了制约（P<0.;05）。
- Keywords Biventricular pacing;Left ventricular pacing lead;Cardiac vein; 关键词双心室起搏;左室起搏导线;冠状静脉;
- Experimental Study of Left Ventricular Pacing Using Conventional Ventricular Leads Placed in the Cardiac Veins 普通心室电极导线经心脏静脉行左室起搏的实验研究
- left ventricular pacing 左心室起搏
- Application of Biventricular Pacing and Preliminary Experience of Implanted Left Ventricular Lead. 双室同步起搏的临床应用及置入左室电极的初步体会。
- Original Clinical Observation of Permanent Right Atrial Left Ventricular or Biventricular Pacing Using Conventional Lead. 普通电极导线行右房左室或双心室起搏的初步临床观察。
- Objective\ To evaluate the impact of the atrioventricular delay on the left ventricular filling dynamics during DDD pacing. 目的探讨双腔心脏起搏时房室延迟对左室充盈动力学的影响。
- The same eccentric atrial activation sequence was shown during right ventricular pacing and tachycardia. 心动过速与右心室起搏均呈同样的偏心性心房激动顺序；
- Pressure-volume loops were measured with a conductance catheter during basal conditions, handgrip exercise, and atrial pacing with 120 bpm to analyze diastolic and systolic left ventricular function. 应用电导导管分别测定在基础状态下、握力试验及心房起搏120次/分时压力容积环，分析舒张期和收缩期左室功能。
- The congestive heart failure model induced by rapid ventricular pacing has provided a useful preparation of low output biventricular failure. 快速起搏致心力衰竭的动物模型是一种较理想的非缺血性、低排血量的全心衰竭模型。
- Three-Dimensional echocardiography( 3-DE )was used to elvaluate the left ventricle cardiac function and left ventricular wall motion during the three different pacing moulds(VVI,DVI,AAI)in 8 patients implanted DDD pacemaker. 应用三维超声心动图（3－DE）测定8例植入双腔起搏器病人心室功能参数，观察按需型起搏（VVI）、房室顺序型起搏（DVI）、心房按需型起搏（AAI）三种不同起搏方式对左心功能及左室壁活动的影响。
- Objective To study the effect of transesophageal ventricular pacing(TEVP) with a novel electric conduction balloon electrode catheter. 目的评价导电球囊电极导管经食管心室起搏的可行性及临床应用。
- Clinical left ventricular enlargement with secondary mitral regurgitation? 临床上有否左心室扩大伴二尖瓣返流?
- The incidence of atrial arrhythmia in the AAI/DDD groups were much lower(efficiency 85%) than VVI goup(efficiency 43%) P <0 01.the patients had higher left ventricular eject function(LVEF) and cardiac output(CO) after AAI/DDD pacing ( P <0 05). AAI/DDD组房性心率失常的发生率降低 (有效率 85%25 ) ;VVI组下降不明显 (有效率 4 3%25 ) ;差异有显著性 (P <0 0 1)。 心脏超声心动图AAI/DDD术后LVEF、CO升高 ;心功能改善 (P <0 0 5 ) ;房室大小无明显变化 (P >0 0 5 ) ;
- Conclusion AAI is a reliable and safe mode of pacing, and provides normal A-V sequence and hemodynamics.Thus, atrial pacing is apparently superior to ventricular pacing. 结论心房起搏是一种安全的起搏方式，可保持正常的房室收缩顺序功能及血流动力学效果，而明显优于心室起搏。
- The ratio of acute left ventricular failure was 14.5%, Tha of asthma was11%. 老年人自发性气胸误诊率36.;8%25;其中误诊为急性左心衰占14
- Objective: To investigate the change of TDI parameters after right ventricular pacing, and to reveal the effects of VVI and DDD on myocardial contractile function. 摘要目的：应用组织多普勒成像(TDI)技术检测组织运动速度、应变与应变率等参数，评价其在右室心尖起搏(VVI)与房室顺序起搏(DDD)的改变规律对节段性心肌功能的影响。
- Heart weight index(HWI),left ventricular mass index(LVMI) were calculated. 测算心脏重量指数(heartwe ight index,HW I)、左室质量指数(left ventricu-larm ass index,LVM I);
- Objective： To investigate the change of TDI parameters after right ventricular pacing， and to reveal the effects of VVI and DDD on myocardial contractile function. 目的：应用组织多普勒成像（TDI）技术检测组织运动速度、应变与应变率等参数，评价其在右室心尖起搏（VVI）与房室顺序起搏（DDD）的改变规律对节段性心肌功能的影响。
- Measuring value of left ventricular function have deviation in AQ method. 结论：AQ法与门控核素法比较，其左心功能测值差异性较大。 M超法测定LVEF是基本稳定和可靠的
