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Rahman Naima M - - 2010
BACKGROUND: Surgical treatment of atrial fibrillation (AF) with heat-based therapies has been associated with a high rate of arrhythmia recurrence. We studied the short-term to medium-term outcomes with a unique biatrial linear ablation procedure for AF treatment using an argon-based cryoablation device during concomitant cardiac operations. METHODS: Between March 2005 ...
Schmidt Martin - - 2010
Intracardiac Echocardiography Guided Cryoballoon Ablation. Cryoballoon ablation is increasingly used for pulmonary vein isolation (PVI) in patients with atrial fibrillation (AF). This new technique aims to perform PVI safer and faster. However, procedure and fluoroscopy times were similar to conventional RF approaches. We compared ICE plus fluoroscopy versus fluoroscopy alone ...
Kuppahally Suman S - - 2010
Atrial fibrosis is a hallmark of atrial structural remodeling (SRM) and leads to structural and functional impairment of left atrial (LA) and persistence of atrial fibrillation (AF). This study was conducted to assess LA reverse remodeling after catheter ablation of AF in mild and moderate-severe LA SRM. Catheter ablation was ...
Kim Won Ho - - 2010
The optimal pacing mode with either single chamber atrial pacemaker (AAI or AAIR) or dual chamber pacemaker (DDD or DDDR) is still not clear in sinus-node dysfunction (SND) and intact atrioventricular (AV) conduction. Patients who were implanted with permanent pacemaker using AAI(R) (n = 73) or DDD(R) (n = 113) ...
Kong Melissa H - - 2011
Although useful, percutaneous left atrial ablation for pulmonary vein isolation (PVI) does not eliminate atrial fibrillation (AF) in all patients. The ablation of complex fractionated atrial electrograms (CFAEs) has been proposed as an adjunctive strategy to improve the maintenance of sinus rhythm after PVI. Our objective was to analyse the ...
Yokokawa Miki - - 2011
The relationship between the applied techniques and clinical outcomes after radiofrequency (RF) ablation of atrial fibrillation (AF) remains unclear. We compared the results of ablation by RF delivered via a point-by-point versus catheter dragging technique for the treatment of AF. This study included 66 patients with drug-refractory AF who underwent ...
Koyama Takashi - - 2010
We sought to clarify the efficacy of corticosteroid therapy for preventing atrial fibrillation (AF) recurrence after pulmonary vein isolation (PVI). The inflammatory process may cause acute AF recurrence after PVI. However, no studies have examined the relationship between corticosteroid administration and AF recurrence after PVI. A total of 125 patients ...
Latini R - - 2011
we evaluated the prognostic role of circulating cardiovascular biomarkers in patients with a history of recent atrial fibrillation (AF). predicting long-term maintenance of sinus rhythm in patients with AF is difficult. plasma concentrations of three specific cardiac markers [high-sensitivity troponin T (hsTnT), N-terminal probrain natriuretic peptide (NT-proBNP) and mid-regional proatrial ...
McCanta Anthony C - - 2010
Dual atrioventricular (AV) nodal physiology is a substrate for the development of AV nodal reentrant tachycardia (AVNRT). However, the risk of developing AVNRT in patients with dual AV nodal physiology is not known. The purpose of this study is to identify the risk of developing AVNRT in children and adolescents ...
Dabrowski Rafal - - 2010
Angiotensin II and aldosterone are key factors responsible for the structural and neurohormonal remodeling of the atria and ventricles in patients with atrial fibrillation (AF). The aim of the present study was to evaluate the antiarrhythmic effects of spironolactone compared to angiotensin-converting enzyme inhibitors in patients with recurrent AF. A ...
Cristoni Lorenzo - - 2011
Background Direct current cardioversion (DCC) has been shown to be effective for the management of atrial fibrillation (AF) in the emergency department (ED). Pharmacological cardioversion was compared with a strategy including DCC on patients with uncomplicated, recent-onset (<48&emsp14;h) AF managed in a short observation unit (SOU). Methods A prospective observational ...
Pak Hui-Nam - - 2011
Left lateral mitral isthmus (LLMI) ablation achieves a low percentage of bidirectional conduction block in atrial fibrillation (AF) ablation. The purpose of this study was to investigate whether linear ablation through the lowest voltage area on the left atrial anterior wall (LAAW) can lead to better clinical outcomes compared to ...
Lo Li-Wei - - 2011
Multiple remodeling patterns have been observed after catheter ablation of atrial fibrillation (AF). We aimed to clarify the electrical/structural properties associated with recurrences after ablation of chronic AF. After a stepwise ablation procedure in 120 consecutive patients with persistent/long-lasting persistent AF, 36 had a recurrence of AF (Group 1/Group 2: ...
Kühne Michael - - 2010
Cryoballoon ablation has emerged as a novel treatment strategy for patients with atrial fibrillation (AF). The purpose of this study was to compare pulmonary vein isolation (PVI) using cryoballoon ablation versus RF ablation with regard to myocardial injury, pulmonary vein (PV) reconnection patterns, and outcome. Fifty patients (age 59 ± ...
Shin Seung Yong - - 2011
Effect of Ablation on Endothelial Function. Background: Although atrial fibrillation (AF) is a risk factor for endothelial dysfunction (ED), the effect of catheter ablation (CA) on AF-associated ED has not been evaluated. The aims of this study are to determine if the degree of ED predicts the outcome of AF ablation ...
Pokushalov Evgeny - - 2011
Ablation of Paroxysmal and Persistent Atrial Fibrillation. Background: The aim of this prospective observational study was to identify responders to ablation through continuous subcutaneous monitoring for 1 year after ablation in patients with paroxysmal atrial fibrillation (PAF) or persistent AF (PersAF). Method: Patients with symptomatic drug refractory AF were enrolled. Real-time ...
Miyazaki Shinsuke - - 2010
The remote magnetic navigation system (MNS) has been used with a nonirrigated magnetic catheter for atrial fibrillation (AF) ablation. The objective of this study was to evaluate the feasibility and efficiency of the newly available irrigated tip magnetic catheter for index pulmonary vein isolation (PVI) in patients with paroxysmal AF ...
Deneke Thomas - - 2011
Esophageal Temperature Monitoring During PVAC Ablation. Introduction: A novel ablation system has been introduced for rapid treatment of atrial fibrillation (AF). This system delivers duty-cycled phased radiofrequency (RF) energy via an over-the-wire catheter (PVAC(®) , Medtronic) to achieve pulmonary vein (PV) isolation. Lower power and depth control suggests that collateral damage ...
Lee Seung Hyun - - 2011
The presence of a giant left atrium (LA) is strongly associated with the recurrence of atrial fibrillation (AF) after the maze procedure. Therefore, we investigated the factors affecting the rhythm outcomes after the maze procedure in patients with a giant LA and AF-associated mitral valve disease to determine the best ...
Hofmann Robert - - 2010
We sought to compare the results of pulmonary vein (PV) ablation using the high-density Mesh Ablator catheter (MESH) versus the cryoballoon (CRYO). From August 2007 to November 2009, all patients with paroxysmal atrial fibrillation scheduled for a first procedure of PV isolation were screened by cardiac computed tomography for anatomical ...
Erdogan Ali - - 2010
Radiofrequency (RF) catheter ablation has been established as an effective and curative treatment for atrial flutter (AFL). Approved methods include a drag-and-drop method, as well as a point-by-point ablation technique. The aim of this study was to compare the acute efficacy and procedural efficiency of a multipolar linear ablation catheter ...
Sahin Veysel - - 2010
Atrial fibrillation (AF) is a common complication of cardiovascular surgery and its mechanisms are not well understood. The aim of our study was a prospective investigation of the relationship between AF development and tissue or blood magnesium levels. This prospective observational study evaluated 20 patients undergoing elective initial coronary artery ...
Pires Leonardo M - - 2010
Surgical pulmonary veins isolation (PVI) is done to restore sinus rhythm (SR) in patients with chronic permanent atrial fibrillation (CPAF) and mitral valve disease. Here we compare the efficacy of electrical block lines performed with radiofrequency (RF) compared with conventional surgery. Randomized trial of 22 patients with CPAF and indication ...
Willems Stephan - - 2010
A robotic navigation system (RNS, Hansen™) has been developed as an alternative method of performing ablation for atrial fibrillation (AF). Despite the growing application of RNS-guided pulmonary vein isolation (PVI), its consequences and mechanisms of subsequent AF recurrences are unknown. We investigated the acute procedural success and persistence of PVI ...
Christiansen Stefan - - 2010
Cryoablation is a new surgical technique for the treatment of atrial fibrillation. Because long-term results are scarce, we report on our findings with this antiarrhythmic therapy. Forty-three patients (men: 22; women: 21) with paroxysmal (20 patients) or permanent (23) atrial fibrillation underwent different cardiac procedures with simultaneous cryoablation from 2002 ...
Pokushalov Evgeny - - 2010
Modification of left atrial ganglionated plexi (GP) is a promising technique for the treatment of paroxysmal atrial fibrillation (AF) but its therapeutic efficacy is not established. This study aimed at evaluating the effectiveness of anatomic GP modification by means of an implantable arrhythmia monitoring device. In 56 patients with paroxysmal ...
Wokhlu Anita - - 2010
Ablation eliminates atrial fibrillation (AF) in studies with 1 year follow-up, but very late recurrences may compromise long-term efficacy. In a large cohort, we sought to describe the determinants of delayed recurrence after AF ablation. Seven hundred and seventy-four patients with AF (428 paroxysmal [PAF, 55%] and 346 persistent or ...
Shiyovich Arthur - - 2010
INTRODUCTION: Atrial fibrillation (AF) and atrial flutter (AFL) are clinically and electrocardiographically similar. However, considering significant therapeutic differences, differentiation of these 2 arrhythmias is essential. Our aims were to evaluate the misdiagnosis rate among electrocardiograms (ECGs) interpreted as AF or AFL by internists and to describe the factors that could ...
Boyd W Douglas - - 2010
Postoperative atrial fibrillation (AF) is a significant complication following open heart surgery, with potentially serious clinical and economic implications. To assess the effect of a novel procedure, pericardial reconstruction using a porcine-derived extracellular matrix (ECM) implant, on the risk of postoperative AF after primary isolated coronary artery bypass grafting (CABG), ...
Fichtner Stephanie S Deutsches Herzzentrum München & 1. Med. Klinik, Technische Universität München, Lazarettstrasse 36, Munich, Germany. - - 2010
There are few data about the incidence of very late (>12 months) arrhythmia relapse after pulmonary vein isolation (PVI) for paroxysmal atrial fibrillation (AF) and about the success rate of repeat ablation procedures in this population. All patients treated with PVI for paroxysmal AF were screened in the institution's electrophysiology ...
Choi Suk Won - - 2012
We describe a patient with gastroparesis after radiofrequency catheter ablation (RFCA) as a result of vagus nerve injury. A 42-year-old man underwent redo-RFCA due to recurrent drug-resistant symptomatic atrial fibrillation. The patient complained of indigestion and early satiety 2 weeks after the second procedure. There was also weight loss of ...
Shingu Yasushige - - 2011
Objective: Although several risk factors for postoperative atrial fibrillation (AF) have been proposed, it remains the most common complication after cardiac surgery, even in low-risk patients. There is still no single reliable and reproducible parameter for predicting AF, and no standardized recommendation exists for this issue. Electromechanical delay (excitation-contraction coupling ...
Pappone Carlo - - 2011
Nonirrigated magnetic ablation may result in potential char, ineffective lesions, and longer procedure times. This study sought to report the safety and long-term efficacy of irrigated-tip magnetic ablation of atrial fibrillation (AF). Catheter ablation was remotely performed using a new irrigated-tip magnetic catheter (ThermoCool NaviStar-RMT, Biosense Webster, Diamond Bar, CA) ...
Komatsu Yuki - - 2011
Aims Catheter ablation for persistent atrial fibrillation (AF) is currently performed with different procedural endpoints. When AF did not terminate during ablation procedure, electrical cardioversion was performed at different defibrillation threshold (DFT) according to AF characteristics and atrial electrophysiologic substrates. We sought to evaluate the impact of atrial DFT after ...
Jamil-Copley Shahnaz - - 2010
Atrial fibrillation (AF), a chaotic and irregular contraction of the atria, remains the most common cardiac arrhythmia affecting up to 1.5 per cent of the world population. It has significant economic and personal implications primarily owing to the associated fivefold increase in risk of thromboembolic stroke. The mainstay of risk ...
Rillig Andreas - - 2010
Recently, results describing pulmonary vein isolation (PVI) on patients using a robotic navigation system (RNS) in a high-volume center specialized in pulmonary vein isolation were published. The main purpose of this prospective study was to evaluate the learning curve of new users of RNS in a community hospital and to ...
Sy Raymond W - - 2011
Complete circumferential antral ablation may not be necessary for successful pulmonary vein (PV) isolation in patients with paroxysmal atrial fibrillation (AF). We examined the feasibility of a noncircumferential approach limited to segments of the antra required for PV-atrial conduction. During ablation for paroxysmal AF, each PV antrum was divided into ...
Ruiz-Nodar Juan M - - 2011
There are various schemas designed to stratify the risk of thromboembolism (TE) in patients with atrial fibrillation (AF), of which the CHADS(2) (congestive heart failure, hypertension, age ≥ 75 y, diabetes, stroke [doubled]) score is the most widely studied. We evaluated whether the CHADS(2) score was adequate for TE risk stratification ...
Donal Erwan - - 2010
Atrial fibrillation (AF) may induce three kinds of atrial remodelling: morphological, contractile, and electrical. Maintain of sinus rhythm is usually associated with left atrial (LA) volume decrease, but little is known about the evolution of its mechanical properties. We sought to explore LA mechanical and morphological remodelling in patients with ...
Yoo Dale - - 2010
Postoperative atrial fibrillation remains a common cause of morbidity. Although epicardial drug delivery can increase efficacy and reduce side effects, it is impractical for postoperative atrial fibrillation because pericardial bleeding/effusion and drainage cause rapid drug elimination. Fibrin glue sprayed on the epicardium is vigorously adherent, allowing an admixed drug to ...
Leong-Sit Peter - - 2010
Young patients with atrial fibrillation (AF) tend to be more symptomatic and less willing to take long-term medications, yet catheter ablation remains recommended as second-line therapy for AF regardless of age. This study seeks to characterize the effectiveness and risk of AF ablation in the young. Consecutive (n=1548) patients who ...
Kim Joon Bum - - 2010
The study aim was to compare maze outcomes using microwave ablation or cryoablation in patients with mitral disease and atrial fibrillation (AF). Between 1999 and 2005, 340 patients underwent mitral valve surgery and concomitant maze procedure involving either microwave ablation (n=96, MW group) or cryoablation (n=244, Cryo group). Mean age ...
Fatemi Marjaneh - - 2011
Atrial arrhythmias (AAs) occur frequently after cardiac surgery. However, most authors do not differentiate postoperative atrial fibrillation (AF) from atrial flutter (AFL). Our study sought to investigate the incidence and predictors of AFL following non-congenital cardiac surgery, and the long-term outcome of this arrhythmia. We conducted an observational, retrospective, single-centre ...
Vassilikos Vassilios - - 2011
The pathogenetic mechanisms responsible for the initiation and recurrence of PAF are not fully elucidated and vary among individuals. We evaluated the ability of a novel non-invasive approach based on P wave wavelet analysis to predict symptomatic paroxysmal atrial fibrillation (PAF) recurrences in individuals without structural heart disease. We studied ...
Zhang Zhong - - 2011
It has been recently reported that atrial fibrillation (AF) is associated with inflammation and inflammatory cytokines, and n-3 polyunsaturated fatty acids (PUFAs) might be of anti-inflammatory effects. This study was to evaluate the anti-inflammatory effect of PUFAs on AF in a canine sterile pericarditis model. 20 dogs were randomly assigned ...
Neumann Thomas - - 2011
Aims Cerebral embolism is a possible serious complication during catheter ablation of atrial fibrillation (AF). The purpose of this prospective pilot study was to analyse the incidence and possible impact of cryo ablation on cerebral lesions and possible differences to radiofrequency (RF) ablation during pulmonary vein isolation (PVI). Methods and ...
Hunter Ross J - - 2010
To investigate the impact of variant pulmonary vein (PV) anatomy and the use of three-dimensional image integration (3D-II) on long-term efficacy of catheter ablation for atrial fibrillation (AF). Consecutive procedures from 2002 to 2007 were analysed from a prospective database. All patients underwent wide area circumferential ablation, with linear lesions ...
Cozzarelli John - - 2010
The authors discuss their rationale for the use of radiofrequency nerve ablation (RFNA) in the treatment of chronic neurogenic heel pain. Patients treated for plantar fasciitis who fail to improve after conservative and/ or surgical treatment should be reevaluated for a coexistent nerve entrapment. The results of a retrospective study ...
Bulava Alan - - 2010
Catheter ablation for paroxysmal atrial fibrillation is widely used for patients with drug-refractory paroxysms of arrhythmia. Recently, novel technologies have been introduced to the market that aim to simplify and shorten the procedure.  To compare the clinical outcome of pulmonary vein (PV) isolation using a multipolar circular ablation catheter (PVAC ...
Nair Suresh G - - 2010
Once considered as nothing more than a nuisance after cardiac surgery, the importance of postoperative atrial fibrillation (POAF) has been realized in the last decade, primarily because of the morbidity associated with the condition. Numerous causative factors have been described without any single factor being singled out as the cause ...
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