During such an episode, the system, preferably incorporated into an implantable pacemaker, applies subthreshold bursts of stimulus pulses to or proximate to the patient's AV node so as to inhibit conduction of electrical signals through to the ventricle during the bursts. The bursts are timed in ...
We assess whether AV node ablation and pacemaker implantation after discontinuation of effective rate-control medical therapy for chronic atrial fibrillation had a positive impact on quality of life and exercise performance. To assess the possibility of a placebo effect following pacemaker implantation, th...
Atrial modulation of sinoatrial pacemaker rate Atrial tissue is known to modulate the pacemaker activity of the sinoatrial node, and it is suggested that acetylcholine (ACh) applied to the atrium can sl... M Boyett,AV Holden,I Kodama,... - 《Chaos Solitons & Fractals》 被引量: 113发表: ...
(SA)node;alsoknownasthepacemaker;thatisresponsibleforstimulatingtherateofcontractionandrelaxationoftheheart.TheSAnodeislocatedinthewalloftheRightAtrium.Theimpulsegeneratedstimulatesadownwardcontractionofbothatria,forcingbloodintotheventricles.Thesignalcontinuesandstimulatesasecondarynode,calledtheatrioventricular(AV)node....
of Koch’s triangle, and if it ever appears that ablation energy has to be delivered uncomfortably close to the presumptive site of the compact AV node, it is reasonable to consider the use of cryoablation rather than radiofrequency (RF) energy and to accept a higher recurrence rate.46...
The AV node, which normally exhibits the fastest rate of autorhythmicity is known as the pacemaker of the heart. A. 正确 B. 错误 如何将EXCEL生成题库手机刷题 如何制作自己的在线小题库 > 手机使用 分享 反馈 收藏 举报 参考答案: B 复制 纠错...
Reduction of right ventricular pacing in patients with sinus node dysfunction using an enhanced search AV algorithm. sick sinus syndromeAV delayDDDpacingBackground: Dual chamber pacing typically results in a high percentage of ventricular pacing. A number of studies have ... C Melzer,S Sowelam,TJ...
C) AV node D) ventricle Cardiac Pacemaker Cells: The heart is primarily made up of cardiac myocytes but there exists a small population of cells called cardiac pacemaker cells. These cells display autorhythmicity by continuously spontaneously deplarizing which sets ...
Radiofrequency (RF) catheter ablation of the atrioventricular node (AVN) and implantation of a ventricular pacemaker can improve cardiac performance in pat... N Twidale,T Mcdonald,K Nave,... - 《Pacing & Clinical Electrophysiology》 被引量: 42发表: 2010年 Modulation of the TRPV1 Channel: Cu...
An AV node ablation and insertion o a permanent pacemaker will regulate your heart rate and provide relie rom the symptoms you have been experiencing. This procedure stops the ast, irregular impulses rom the atria reaching the ventricles. The procedure The AV node slows the electrical signals ...