A5021734708- Cardiac Arrhythmias and Treatments
- Atrial Fibrillation Management and Outcomes
- Cardiac electrophysiology and arrhythmias
- Cardiac pacing and defibrillation studies
- Cardiac Imaging and Diagnostics
- Cardiovascular Disease and Adiposity
- Cardiovascular Effects of Exercise
- Neural dynamics and brain function
- Hemodynamic Monitoring and Therapy
- Cardiovascular Function and Risk Factors
Nihon University
2022-2025
ABSTRACT Background Neither the actual in vivo tissue temperatures reached with a novel contact force sensing catheter mesh‐shaped irrigation tip (TactiFlex SE, Abbott) nor safety profile has been elucidated. Methods In porcine model ( n = 8), thermocouples were implanted epicardially superior vena cava, right pulmonary vein, and esophagus close to inferior cava following thoracotomy. After chest closure, endocardial ablation was conducted near under fluoroscopic guidance. We compared during...
Abstract Background Zero‐fluoroscopic pulsed field ablation (PFA) is the next step in advancing pulmonary vein isolation (PVI) for atrial fibrillation (AF). Methods A workflow incorporating a variable‐loop circular PFA catheter, intracardiac echocardiography (ICE), and visualized sheath was applied to 15 paroxysmal AF patients. Results It consisted of three steps: (1) positioning non‐magnetic mapping catheter coronary sinus after creating right matrix, (2) transseptal puncture with...
Abstract Background and Aim Catheter ablation (CA) of idiopathic ventricular arrhythmias (VAs) from the epicardial left summit is challenging. The endocardial approach targets two sites: closest site (ECS) to earliest activation (epi-EAS) EAS (endo-EAS). We aimed differentiate between cases where CA at ECS was effective yielded success. Methods Fifty-eight patients (47 men, 60±13 years) were analyzed with VAs in which observed coronary venous system (CVS). Results Overall, successfully...
Ablation strategies and modalities for atrial fibrillation (AF) have transitioned over the past decade, but their impact on post-ablation medication clinical outcomes remains to be fully investigated.
The effects of the patient's disease awareness on management postablation atrial fibrillation (AF) are unknown.
Identification of infrequent nonpulmonary vein trigger premature atrial contractions (PACs) is challenging. We hypothesized that pace mapping (PM) assessed by correlation scores calculated an intracardiac pattern matching (ICPM) module was useful for locating PAC origins, and conducted a validation study to assess the accuracy ICPM-guided PM.
Background: Fractionated potential (FP) ablation during atrioventricular nodal reentrant tachycardia (AVNRT), is an effective strategy that minimizes redundant radiofrequency (RF) applications. This study aimed to evaluate the utility of cryoablation targeting FPs effectively terminate AVNRT while further minimizing cryoapplications. Moreover, we observed what appeared be compact AVN (cAVN) or proximal His potentials—tiny, dull potentials (TDPs) with continuity sinus rhythm (SR) and AVNRT—in...
The authors declare no conflicts of interest.
A subeustachian pouch (SEP) often hinders the completion of a cavotricuspid isthmus (CTI) ablation typical atrial flutter (AFL) and sometimes causes steam-pops during power-controlled ablation. We hypothesized that real-time bull's-eye monitoring catheter surface temperature might be useful to locate SEP where can rise rapidly, temperature-controlled avoid steam pops. This study aimed demonstrate this hypothesis.
Introduction: Recently, there have been numerous strategies for treating atrial fibrillation, including the choice of catheters However, thermal characteristics each catheter, particularly in terms safety, not fully understood. Hypothesis: Our aim was to characterize damage collateral tissues during 50W-HPSD ablation and 90W/4sec-vHPSD using three different catheters. Methods: In 28 pigs, we implanted thermocouples on superior vena cava, close phrenic nerve, esophageal, inferior cava. We...