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Radiofrequency Catheter Ablation of Common Atrial Flutter: Role of the Eustachian Valve
Springer Science and Business Media LLC - - 1999
Introduction: During radiofrequency catheter ablation of a common atrial flutter between the tricuspid annulus and the Eustachian valve “septal isthmus”, double potentials were recorded along the Eustachian valve, previously described as an anatomical line of conduction block between the coronary sinus ostium and the inferior vena cava. Results: Just before flutter termination, lengthening and bea...... hiện toàn bộ
Inability to Cannulate the Coronary Sinus in Patients with Supraventricular Arrhythmias: Congenital and Acquired Coronary Sinus Atresia
Springer Science and Business Media LLC - Tập 12 - Trang 123-127 - 2005
We report 4 cases of congenital and acquired coronary sinus ostial atresia incidentally found during electrophysiologic assessment for supraventricular arrhythmias. Congenital variants consisted of coronary sinus drainage predominantly via persistent left superior vena cavae and partial coronary sinus unroofing into the left atrium. The acquired variant was inadvertently produced during surgery fo...... hiện toàn bộ
Dominant vector changes during early wavebreak/spiral wave (Wiggers stage 1) in ventricular fibrillation: insights from the analysis of 100 electrophysiology studies
Springer Science and Business Media LLC - Tập 63 - Trang 153-164 - 2021
To describe electrocardiographic vector patterns during early VF transition (Wiggers stage 1). In 100 electrophysiology studies with VF induction, the first 3 beats of VF were analyzed in lead I for left/right axis (LA/RA), V1 for left/right bundle (LB/RB), and aVF for superior/inferior axis (SA/IA). Correlation with demographic/clinical factors was performed using regression analyses and mixed ef...... hiện toàn bộ
Combined Radiofrequency Ablation-Cooling Catheter for Reversible Cryothermal Mapping and Ablation
Springer Science and Business Media LLC - Tập 1 - Trang 139-144 - 1997
Reversible cryothermal mapping of cardiac arrhythmias has beenperformed intraoperatively. However, a steerable cooling catheter forreversible mapping has not yet been developed. We therefore developed andtested a cooling system consisting of a +15°C hypertonic salinereservoir and a 7F steerable catheter also capable of radiofrequency (RF)ablation. Using excised ovine hearts placed in a 37°C circul...... hiện toàn bộ
Left atrial lesion formation and volume overload by open irrigation ablation technology during pulmonary vein antrum isolation: acute effects on cardiac hemodynamics
Springer Science and Business Media LLC - Tập 31 - Trang 125-130 - 2011
Our goal was to evaluate acute effects of left atrial lesion formation and volume overload on hemodynamics during pulmonary vein antrum isolation (PVAI) as it might be a potential cause of acute pulmonary edema. In consecutive patients presenting for PVAI, open irrigation ablation was performed (50 W, 48°C, 15 s lesion duration, saline flow rate 30 mL/min). Blood samples were drawn from the left a...... hiện toàn bộ
Augustus Desiré Waller (1856–1922)—The First to Record the Electrical Activity of the Human Heart
Springer Science and Business Media LLC - Tập 9 - Trang 59-60 - 2003
The impact of cryoballoon-based catheter ablation on left atrial structural and potential electrical remodeling in patients with paroxysmal atrial fibrillation
Springer Science and Business Media LLC - Tập 44 - Trang 131-139 - 2015
While atrial fibrillation (AF) begets AF via structural, contractile, and electrical remodeling, it was shown that successful radiofrequency ablation of AF has effectively reversed left atrial (LA) remodeling. However, there was little data regarding the efficacy of cryoablation on LA remodeling. Herein, we aimed to assess the impact of cryoablation on LA structural and potential electrical remode...... hiện toàn bộ
Impact of quadripolar LV leads on heart failure hospitalization rates among patients implanted with CRT-D: data from the Israeli ICD Registry
Springer Science and Business Media LLC - - 2017
Cardiac resynchronization therapy (CRT) is an effective treatment for heart failure (HF); however, a third of patients are non-responders. The development of quadripolar left ventricular (LV) lead was shown, mainly in single manufactures’ registry, to improve LV remodeling and overall mortality. However, limited reports exist on the impact of quadripolar LV leads on HF hospitalization rates in rea...... hiện toàn bộ
Repositioning of a Dislodged and Fibrosed Ventricular Lead
Springer Science and Business Media LLC - - 2005
Electrogram voltage and pacing threshold before ablation, measured by mini-electrodes, predict parameters indicative of transmural lesions in the human atrium
Springer Science and Business Media LLC - Tập 57 - Trang 443-452 - 2019
An important attenuation of the atrial signal recorded with mini-electrodes (ME) embedded in an 8-mm tip was associated with a transmural radiofrequency lesion. Our aim was to assess if parameters obtained from ME or conventional bipoles before applications predict successful atrial lesions. We prospectively included 33 consecutive patients undergoing cavotricuspid isthmus (CTI) ablation. Electrog...... hiện toàn bộ
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