Modulated pacemaker hypothesis and conduction hypothesis on the atrioventricular node.

Intrinsic Atrioventricular Node Conduction Recovery After Transcatheter Aortic Valve Implantation and the Permanent Pacemaker Implantation Enigma

The prevalence of degenerative valvular diseases such as aortic stenosis has continued to rise due to an increase in the aging population globally [1, 2]. Transcatheter aortic valve implantation (TAVI) has emerged to the forefront of severe aortic stenosis treatment, starting with high-risk surgical patients [1, 2]. The minimally invasive approach of TAVI, as established from the promising resu...

The modulated dispersion hypothesis confirmed in humans.

Conventional teaching suggests that the initiation of arrhythmias requires an initiating “trigger” and a suitable “substrate.” Moreover, the hallmark of electro-anatomic substrates for reentrant arrhythmias is spatially heterogeneous structural or electrophysiological properties. The fundamental requirement of heterogeneous refractory properties is not a new concept and was recognized by the ea...

Interrelationship of Potassium and Vagal Action on the Sinoatrial Pacemaker and on Atrioventricular Conduction.

Simultaneous atrioventricular node ablation and leadless pacemaker implantation☆☆☆

Introduction The ablate-and-pace technique is a well-established method to treat patients with persistent and paroxysmal atrial fibrillation with poor rate control on medical therapy.1 The technique represents a class IIa indication to control heart rates when pharmacologic therapy is insufficient or intolerable.2 As many of these patients are in permanent atrial fibrillation, they frequently r...

Linguistically Modulated Perception and Cognition: The Label-Feedback Hypothesis

How does language impact cognition and perception? A growing number of studies show that language, and specifically the practice of labeling, can exert extremely rapid and pervasive effects on putatively non-verbal processes such as categorization, visual discrimination, and even simply detecting the presence of a stimulus. Progress on the empirical front, however, has not been accompanied by p...