BACKGROUND Although retrograde decremental accessory pathways (DAPs) are thought to typically present as permanent junctional reciprocating tachycardia (permanent junctional reciprocating tachycardia), they may also be diagnosed unexpectedly during electrophysiology study. We aimed to compare the clinical and electrophysiological characteristics of patients with DAPs to an age-matched cohort wi...

Cell-Type-Specific Electrophysiology In article number 2103564, Namsun Chou, Il-Joo Cho, and co-workers develop a multimodal multi-shank fluorescence neural probe system. The enables combined electro-optical recordings for cell-type-specific electrophysiology from multiple deep-brain regions at high spatiotemporal resolution. system gives new experimental paradigm to enable the precise investig...

background: ventriculoatrial (va) conduction has an important role in the initiation and maintenance of some arrhythmias. the aim of this study was to evaluate whether clinical and electrophysiological parameters of atrioventricular (av) conduction can predict va conduction. methods: detailed demographic, electrocardiographic, and echocardiographic data were recorded in 54 consecutive patients ...

A novel silicon ultrasonic horn with microprobes is developed for surgical applications. During insertion, penetration force of the microprobes driven by the ultrasonic horn can be reduced and tissue damage is minimized. The new horn has a profile of a Bézier curve. The dynamical characteristics of the horn are examined. Microscale prototypes are fabricated. Using the driving technique, the for...

An investigation into the technical and commercial feasibility of computer-based interactive simulation of the human heart was conducted. An experimental research application was developed and served as a proof of concept for the simulation models during the research phase. The follow-on development phase will be directed towards a pre-production prototype of a virtual heart organ. The prototyp...

The increased application of catheter ablation to treat cardiac arrhythmias has contributed continued exploration safe and effective tissue tools in the field electrophysiology. Pulsed (PFA), a novel recently developed non-thermal energy-based technique, uses trains microsecond duration high-amplitude pulses ablate target cells. Several preclinical clinical studies have demonstrated that PFA is...