A5034787989- Cardiac Arrhythmias and Treatments
- Atrial Fibrillation Management and Outcomes
- Cardiac electrophysiology and arrhythmias
- Cardiac pacing and defibrillation studies
- Heart Rate Variability and Autonomic Control
- Cardiovascular Effects of Exercise
- Regulation of Appetite and Obesity
- Cardiac tumors and thrombi
- Stress Responses and Cortisol
- ECG Monitoring and Analysis
- Ion channel regulation and function
- Complex Systems and Time Series Analysis
- Cardiovascular Function and Risk Factors
- Cardiovascular Syncope and Autonomic Disorders
- Circadian rhythm and melatonin
Taipei Veterans General Hospital
2019-2023
Chinese General Hospital and Medical Center
2020-2022
National Yang Ming Chiao Tung University
2019-2020
Accurate identification of slow conducting regions in patients with scar-related atrial tachycardia (AT) is difficult using conventional electrogram annotation for cardiac electroanatomic mapping (EAM). Estimating delays between neighboring sites a potential option activation map computation. We describe our initial experience CARTO 3 Coherent Mapping (Biosense Webster Inc,) the ablation complex ATs.Twenty (58 ± 10 y/o, 15 males) ATs were included. created three-dimensional EAMs system...
The efficacy of stereotactic body radiation therapy (SBRT) as an alternative treatment for recurrent ventricular tachycardia (VT) is still unclear. This study aimed to report the outcome SBRT in VT patients with nonischemic cardiomyopathy (NICM).The determination target substrate was based on combination CMR results and electroanatomical mapping merged real-time CT scan image. Radiation performed by Flattening-filter-free (Truebeam) system, afterward, were followed up 13.5 ± 2.8 months. We...
Abstract Background Transmural lesion creation is essential for effective atrial fibrillation (AF) ablation. Lesion characteristics between conventional energy and high-power short-duration (HPSD) setting in contact force-guided (CF) ablation AF remained unclear. Methods Eighty consecutive patients who received CF with (power control: 25–30 W, force–time integral = 400 g s, n 40) or HPSD 40–50 10 were analyzed. Of them, 15 each group matched by age gender respectively lesions analysis. Type...
The management of refractory electrical storm (ES) requiring mechanical circulation support (MCS) remains a clinical challenge in structural heart disease (SHD).The study sought to explore the 30-day and 1-year outcome rescue ablation for ES MCS SHD.A total 81 patients (mean age: 55.3 ± 18.9, 73 men [90.1%]) undergoing were investigated, including 26 with (group 1) 55 without 2). outcome, mortality recurrent ventricular tachyarrhythmias (VAs) receiving appropriate implantable cardioverter...
High-power short-duration (HPSD) and cryoballoon ablation (CBA) has been used for pulmonary vein isolation (PVI).We aimed to compare the efficacy of PVI between CBA HPSD in patients with paroxysmal atrial fibrillation (PAF).We retrospectively analyzed 251 consecutive PAF from January 2018 July 2020. Of them, 124 (mean age 57.2 ± 10.1 year) received 127 59.6 9.4 CBA. In group, radiofrequency energy was set as 50 W/10 s at anterior wall 40 posterior wall. 28 mm generation according...
J-wave syndrome in patients with arrhythmogenic right ventricular cardiomyopathy (ARVC) has been linked to an increased risk of arrhythmia. We investigated the significance J waves respect substrate manifestations and ablation outcomes ARVC.Forty-five ARVC undergoing endocardial/epicardial mapping/ablation were studied. Patients classified into two groups: 13 (28.9%) 32 (71.1%) without waves, respectively. The baseline characteristics, electrophysiological features, substrate, recurrent...
Sleep and estrogen levels have an impact on neural regulation are associated with cardiovascular (CV) events. We investigated the effects of heart rate variability (HRV) circadian cycle in spontaneously hypertensive rats (SHRs). Polysomnographic recording was performed seven male female SHRs during sleep. The electroencephalogram (EEG) electromyogram (EMG) were evaluated to define active waking (AW), quiet sleep (QS), paradoxical (PS) stages. Cardiac activities measured by RR interval...
Background: Atypical atrial flutter (aAFL) is not uncommon, especially after a prior cardiac surgery or extensive ablation in fibrillation (AF). Aims: To revisit aAFL, we used novel Lumipoint algorithm the Rhythmia mapping system to evaluate tachycardia circuit by patterns of global activation histogram (GAH, SKYLINE) assisting aAFL ablation. Methods: Fifteen patients presenting with 20 different incessant including two naïve, six AF ablation, and seven were studied. Results: Reentry SKYLINE...
Abstract Objectives This study aimed to assess the comparative efficacy of four ablation strategies on incidence rates freedom from atrial fibrillation (AF) or tachycardia (AT) through a 3‐year follow‐up in patients with persistent AF. Background The optimal substrate modification using catheter for AF remain unclear. Methods Patients were enrolled consecutively undergo each strategies: (a) Group 1 (Gp 1, n = 69), pulmonary vein isolation (PVI) plus rotor assisted by similarity index and...
Background: Surgical scars cause an intra-atrial conduction delay and anatomical obstacles that facilitate the perpetuation of atrial flutter (AFL). This study aimed to investigate outcome predictor recurrent tachyarrhythmia after catheter ablation in patients with prior cardiac surgery for valvular heart disease (VHD) who presented AFL. Methods: Seventy-two VHD underwent AFL were included. The categorized into a typical group ( n = 45) atypical 27). endpoint was recurrence during follow-up....
Left atrial appendage (LAA) is the main source of thrombus formation, and occlusion this structure decreases risk stroke in patients with fibrillation.We aimed to describe feasibility, safety outcomes percutaneous LAA closure using an occluder device, evaluate residual contrast leak detected on computed tomography (CT) imaging who underwent implantation our institution.Consecutive Taipei Veterans General Hospital (LAAO) were retrospectively collected analyzed.A total 23 included a median age...
Whether deep sedation with intravenous anesthesia will affect the recurrence after cryoballoon ablation (CBA) of paroxysmal atrial fibrillation (AF) is yet to be examined. Thus, in this study, we hypothesize that there difference terms between local and an index procedure.
Despite several proposed algorithms to facilitate the differential diagnosis of wide QRS tachycardia, discriminating ventricular tachycardia (VT) from supraventricular with aberrancy or pre-excited remains clinically challenging in certain cases. In this report, we present a case initial manifestation incessant different right bundle branch block (RBBB) morphologies caused by dual atrioventricular (AV) nodal conduction that could be misinterpreted as arrhythmia (VA).
A drug provocation test (DPT) is important for the diagnosis of Brugada syndrome (BrS). The link, however, between dynamic changes electrocardiography (ECG) features after DPT and unstable ventricular arrhythmia (VA) in BrS remains unknown.Between 2014 2019, we assessed 27 patients with (median age: 37.0 [interquartile range, IQR: 22.0-51.0] years; 25 men), including 9 (33.3%) a history VA 18 (66.7%) without. All study presented Brugada-like ECG before DPT. parameters (∆) 12-lead ECGs...