前降支

双支（前降支并右冠）病变3例；

With two branches stenosis ( LAD and RCA );

分叉病变的类型为前降支/对角支62例（54.9%），左冠状动脉主干分叉病变32例（28.3%），回旋支/钝缘支18例（15.9%），右冠状动脉远端分叉病变1例。

Sixty-two of the bifurcation lesions were located in LAD / diagonal ( 54.9 % ), 32 in distal left main coronary arteries ( 28.3 % ), 18 in LCX / OM ( 15.9 % ) and 1 distal RCA ( 0.9 % ) .

方法套扎健康犬左前降支或左旋支，建立开胸犬IP模型。

Methods Anesthetized open chest canine models were established by ligating left anterior descent branch or left circumflex branch .

方法：结扎大鼠冠状动脉前降支制作AMI模型。

Methods AMI models were induced by ligation of the left anterior descending artery .

MSCT冠状动脉造影显示冠状动脉前降支中断。

MSCT coronary angiography showed the blockage of LAD .

雷帕霉素药物涂层支架（CYPHER~（TM））治疗前降支长病变的临床研究

The clinical study of CYPHER ~ ( TM ) stent in long lesion of left anterior descending artery

方法对12条犬于左前降支（LAD）狭窄前后行静脉心肌声学造影。

Methods Transvenous MCE was performed before and after LAD stenosis in12 dogs .

方法以结扎左冠状动脉前降支方法建立大鼠急性心肌缺血模型，缺血6h后分别测定心肌梗死范围，血清超氧化物歧化酶（SOD）活力和丙二醛（MDA）含量；

METHODS Rat myocardial ischaemia model was induced by ligating the anterior descending branch of left coronary artery .

方法SD大鼠经10%戊巴比妥钠麻醉后，开胸结扎冠脉左前降支，建立大鼠AMI模型。

Methods Left anterior descending coronary arteries were ligated in SD rats after anesthesia by 10 % pentobarbital sodium .

AMI组通过结扎左冠状动脉前降支（LAD）制作AMI模型，Sham组只在LAD下穿线不结扎。

Rats in the AMI group were induced by left anterior descending ( LAD ) branch ligation .

V1导联ST-T改变与前降支病变部位的关系

The relationship between ST-T changes in lead V_1 and the occlusion site of the left anterior descending branch

发现胸前导联ST段改变时，尤其是ST段压低时.提示有多支冠脉病变，特别是前降支病变。

It appeared that ST changes in precordial leads , especially ST depression , sug-gested coronary multiple-branch lesions particularly the anterior descending branch .

方法选用SD健康大鼠，结扎冠状动脉制备心肌损伤模型。移植组和对照组结扎左冠状动脉前降支造成急性心肌梗死模型。

Methods Ligation of descending anterior branch of left coronary artery . AMI was induced by ligation of left anterior descending coronary artery .

左冠状动脉前降支结扎4h后，局部心肌呈明显延迟增强，为（821±152）HU。

But significant enhancement was found after LAD ligation for 4 hours ( 82.1 ± 15.2 ) HU .

目的探讨冠状动脉左前降支（LAD）开口部病变的重塑类型。

Objective To investigate the coronary remodeling patterns of ostial left anterior descending ( LAD ) stenosis .

方法：采用麻醉开胸结扎犬的冠状动脉左前降支制备急性心肌梗死模型，取血测心肌三酶（AST、CPK、LDH）；

An acute myocardial infarction model was made by ligating left anterior descending branch in anesthetic dog .

结果：结扎大鼠左冠状动脉前降支可导致心电图明显的缺血性改变及血清CK活性显著升高；心肌组织的MDA含量和SOD活性显著增加；

Aloperine and propranolol attenuated the ischemic changes of ECG , reduced the level of serum CK activity , myocardial MDA content and SOD activity .

方法应用GE公司的新型心外膜超声探头对32例非体外循环左乳内动脉左前降支动脉旁路移植术中吻合口进行检测。

Methods Thirty two cases of LIMA-LAD off-pump coronary artery bypass grafting were analysed by new type epicardial probe produced by GE medical system .

另外，16层CT显示冠状动脉起源变异2例，前降支冠状动脉瘤1例，室壁瘤1例，房间隔缺损1例。

In addition , 16-slice CT found 2 cases with variant of coronary artery opening , 1 case of LAD aneurysm , 1 case of left ventricular protuberance and 1 case of atrial septal defect .

在体内，以成年雄性Sprague-Dawley大鼠为实验动物，结扎前降支诱发急性心肌梗死。

MI was induced by the left anterior descending artery ligation in adult male Sprague-Dawley rats .

呼吸机辅助通气条件下通过开胸结扎冠脉前降支（LAD）可成功建立SD大鼠急性心梗模型。

Under mechanical ventilation , the SD rats model of acute myocardial infarction was successfully established by ligating anterior descending coronary artery ( LAD ) .

目的探讨用结扎冠状动脉前降支（LAD）后快速右室心内膜起搏的方法尝试建立急性心功能不全动物模型的可行性。

Objective To establish a canine model of acute cardiac insufficiency ( ACI ) by coronary artery occlusion and right ventricular pacing .

2周后，麻醉大鼠，结扎和放松冠状动脉左前降支（LAD）复制IP和I/P模型。

After two weeks , the myocardial IP and I / P models were established by ligating and opening left anterior descending branch ( LAD ) of coronary artery .

结扎左冠状动脉前降支以建立急性心肌缺血（AMI）动物模型。

A rat model of acute myocardial ischemia ( AMI ) was made by ligation of the left anterior descending branch of the coronary artery ( LAD ) .

目的探讨经胸超声的彩色多普勒冠脉血流显像技术评价左前降支动脉（leftanteriordescendingartery，LADA）全程的临床价值。

Objective To evaluate the feasibility and credibility of clinical implementing of transthoracic color Doppler coronary flow imaging ( CDCFI ) on assessing left anterior descending coronary artery ( LADA ) .

方法采用麻醉开胸犬结扎左冠状动脉前降支（LAD）产生急性心肌梗死（AMI）模型，测定AMI6h犬的心脏血流动力学及心肌氧代谢参数。

METHODS The parameters of hemodynamics and cardial oxygen metabolism were determined by using the model of ligation of LAD in the anaesthetized open chest dogs .

心电图ST（aVR）与ST（V1）抬高的差值对鉴别冠状动脉左主干与左前降支急性闭塞的价值

Value of ST_ ( aVR ) - ST_ ( V_1 ) of electrocardiogram in differentiating acute occlusion of the left main coronary artery from the left anterior descending coronary artery

目的：探讨体表心电图在预测急性心肌梗死（AMI）左前降支病变部位的价值。

Objective : To explore the value of the electrocardiogram in predicting the occlusion site of the left anterior descending coronary artery in acute myocardial infarction ( AMI ) .

方法对10头开胸的猪结扎左冠状动脉前降支，采用二维超声及DTI对照检测缺血部心肌的运动状况。

Methods Left anterior descending coronary artery of10 thoracotomied pigs by2-D echocardiography and DTI technique and determined the motion states of myocardial ischemia .

目的在大鼠结扎前降支致心肌梗死的模型上观察辛伐他汀抑制血管紧张素Ⅱ（AngⅡ）及AngⅡ诱导的活性氧（H2O2）生成，是否有利于改善心室重塑和心功能的作用。

Objective To investigate the effects of simvastatin abating angiotensin ⅱ( Ang ⅱ), H 2O 2 and improve cardiac remodeling and cardiac disfunction after myocardiac infarction in rats .