目的 了解新疆地区维吾尔族和汉族人群中白细胞介素6(IL-6)-174G/C、-572C/G、-597G/A位点基因多态性与心房颤动(房颤)的易感性是否有关.方法 选取新疆地区房颤患者维吾尔族103例及汉族102例,选取维吾尔族正常对照100例及汉族正常对照111例,采用聚合酶链反应-限制性内切酶片段长度多态性(PCR-RFLP)分析房颤患者白介素-6-174G/C、-572C/G、-597G/A
快室率的心房颤动(房颤)可影响患者心室舒张充盈功能,心房泵血功能丧失,心排出量降低,心肌缺血、心脏功能恶化,甚至出现低血压、休克等血流动力学障碍.房颤时持续增快的心室率可致心动过速性心肌病.房颤时最常见的症状,多由于快心室率和不规则心律所引起,控制心室率不仅可减轻症状,对于部分房颤患者而言心室率控制后可改善心功能.
目的 探讨肾交感神经高频电刺激(RSN-S)对缺血性室性心律失常的影响.方法 18只体重17-20Kg的正常成年杂种犬麻醉后暴露左侧肾动脉,在肾动脉表面通过高频电刺激(20Hz,2ms脉宽)定位有效的刺激靶点,并在相应靶点固定刺激电极.
Background Dilated cardiomyopathy(DCM),which is characterized by left ventricular enlargement,systolic dysfunction and heart failure.Many cases(20％–35％)of DCM are familial,suggests that genetic factor
Circadian rhythms influence the incidence of sudden cardiac death after chronic heart failure(CHF)but the underlying mechanisms are not well defined.We sought to investigate the role of the β-adrenerg
Background β2 adrenergic receptor(β2-AR)activation increases risk of sudden cardiac death(SCD)in heart failure(HF).Non-selective β-AR blockers have larger beneficial effects on survival than selective
Objectives The purpose of this study is to assess the relation of electrocardiographic QRS duration to left ventricular myocardial scar valued by SPECT myocardial perfusion imaging in nonischemic and
Objective We tested the hypothesis that low level tragus stimulation(LLTS)could suppress intermittent hypoxia induced atrial fibrillation(AF)through autonomic modulating.
Background Previous studies suggest that renal sympathetic nerves can modulate central sympathetic tone.Recently,a beneficial effect of renal sympathetic denervation(RSD)has been seen in patients with
Objective This study was designed to demonstrate that spinal cord stimulation(SCS)could suppress high-frequency stimulation(HFS)induced focal atrial fibrillation(AF)at atrial and pulmonary veins(PVs)s