以往的起搏器通常只有一根导线接入心脏四个房室中的一个。
Pacemakers used to have but a single lead, going to one of the heart’s four chambers.
背景-胎儿房室传导阻滞罕见，但具有极高的病死率。
Background - Fetal atrioventricular (AV) block is an uncommon lesion with significant mortality.
目的：探讨射频消融改良房室交界区的形态学基础。
Objective: To investigate the morphological basis of atrioventricular junctional modification using radiofrequency ablation.
目的探讨表现为非交替性文氏周期的房室交接区双层阻滞的心电图特点和临床意义。
Objective To explore electrocardiogram feature of non-alternating Wenchebach atrioventricular double layer block and it's clinical significance.
结果胎儿房室结的细胞主要为亮细胞、暗细胞和移行细胞。
Results The cell type of atrioventricular node in fetus hearts were composed of light, dark and transitional cells.
以射频电流阻断90例预激综合征患者的房室旁路。
Ninety-two atrioventricular (AV) accessory pathways in 90 patients were abolished by catheter radiofrequency current ab-lation.
目的探讨房室传导不典型文氏现象的心电图特点及临床意义。
Objective to discuss the electrocardiogram characteristics and clinical meaning of untypical Wenckebach's phenomenon in atrioventricular conduction.
表明植物神经对房室传导有较大影响，而尤以迷走神经的影响为著。
The results show that atrioventricular conduction is considerably influenced by autonomic nerves, especially by vagal.
将成为窦房结功能正常的房室传导阻滞患者的最佳选择。
It will be the best choice for atrioventricular block patients with normal sinus function.
目的探讨胎儿房室结内的细胞类型和大小。
Objective To investigate cell type and size of fetus atrioventricular node.
不同种属动物房室交界区细胞束的形态特征及其在房室交界区立体结构中的位置有差异；
There were species difference in the cell shape of those distinct cellular bundles and their position in the architecture of atrioventricular junction.
目的：在大鼠心肌缺血模型上研究房室交界区(房室结及房室束)的形态学变化。
Objective: To study the morphological changes of atrioventricular junction area (atrioventricular node and atrioventricular bundle) on the myocardial ischemia model of rat.
它的特征是窦房结功能障碍并常伴有房室结疾病和束支传导阻滞。
It is characterized by sinoatrial node dysfunction and often includes atrioventricular node disease and bundle branch block.
目的根据影像法射频消融房室结慢径是一相对盲目的方法，其单次放电的成功率低，导致房室阻滞的危险性高。
Objective Radiofrequency catheter ablation of slow pathway based only on fluoroscopy is relatively blind, with low success rate using single RF delivery, and has a high risk of atrioventricular block.
目的研究体表12导联心电图与显性预激房室旁路定位的相关关系。
Objective Clinical study of the body surface 12-leads electrocardiogram criteria for the localization of the accessory atrioventricular pathways.
目的总结完全型房室间隔缺损外科治疗的经验。
Objective To summarize the experience of surgical treatment of complete atrioventricular septal defect (CAVSD).
家禽的心脏传导系统比较特殊，它含有一个返回分支束，使右房室瓣受传导神经的支配。
The conduction system in the avian heart is specialized and contains a recurrent bundle branch that innervates the right atrioventricular valve.
目的报道房室连接不一致的心室双出口外科治疗经验。
Objective To report the surgical treatment for double outlet of ventricle with atrioventricular discordance.
目的：总结60例部分型房室间隔缺损的外科治疗经验。
Objective To summarize the experience of surgical treatments of partial atrioventricular septal defect in 60 patients.
方法回顾分析了10例射频消融并发房室结损伤的病例，提出其预防及处理方法。
Method We have analysed the 10 patients with the atrioventricular node injury related to RFCA, and indicated the effective method of prevention and treatment.
目的进一步认识和评价房室交界区双层阻滞的心电图改变和临床意义。
Objective To understand and evaluate electrocardiography feature and clinical manifestation of atrioventricular junctional double layer block.
探讨房室旁道(简称房道)和房室结双径引起的折返性心动过速的初次发病年龄。
The initial onset age of reentry tachycardia induced by atrioventricular accessory pathway and dual atrioventricular nodal pathways was investigated.
目的：研究窦性心律时静脉注射三磷酸腺苷(atp)或腺苷诱发房室结双径路现象的最小有效剂量。
Objective: to study the minimal effective doses of intravenous ATP and adenosine required to induce dual atrioventricular nodal pathways (DAVNP) during sinus rhythm.
结论：在心电图确诊为严重房室传导阻滞后，应在药物治疗的同时及时安置临时起搏器。
Conclusion: Once a patient was confirmed by electrocardiogram (ECG) as severe atrioventricular block, medication should be applied in time and if necessary, temporary pacemaker installment as well.
比较冠状动脉狭窄与冠状动脉正常者，其房室传导系统房室顺传及室房逆传的电生理特征。
To evaluate the electrophysiological characteristics of antrograde and retrograde atrioventricular node conduction in the patients with or without coronary artery stenosis.
目的：观察心肌损伤对房室结区脱氢酶的影响，探讨心肌损伤引起心律失常的机制。
Objective: to observe the effect of experimental myocardial lesion on dehydrogenase in rat atrioventricular node area and to discuss the mechanism of arrhythmia induced by myocardial lesion.
药物浓度对时间数据作房室模型和统计矩解析，并求出相应的药动学参数。
Analysis of the data was executed by compartmental model and statistical moment calculation from which pharmacokinetic parameters were obtained.
窦房结和房室结周围神经节中的部分神经细胞也呈免疫阳性反应。
Some neural cells in ganglions surrounding sino atrial node and atrio ventricular node were also positive to neurofilament.
试验所得的血浆浓度时间数据采用非房室模型统计矩原理分析处理。
Plasma concentration time data derived from the experiment were analyzed by non compartmental methods based on statistical moment theory.
房室结和传导系统的其他部分可以在异常情况下成为心脏起搏器。
The AV node and other portions of the conduction system can in abnormal situations become the cardiac pacemaker.
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