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Rostagno Carlo - - 2010
To evaluate the incidence of postoperative atrial fibrillation (POAF), the predisposing factors, the results of treatment before discharge, and the impact on duration and costs of hospitalization. A prospective observational study. Patients who underwent cardiac surgery from January 1, 2007 to December 31, 2007. Electrocardiography was continuously monitored after surgery. ...
Tang Ri-Bo - - 2010
It has been shown that the concentration of serum free thyroxine (FT(4)) is independently associated with atrial fibrillation (AF), even in euthyroid persons. This study investigated the effect of a high-normal level of FT(4) on recurrence after catheter ablation of AF. The 244 consecutive patients with paroxysmal AF and who ...
Dukkipati Srinivas R - - 2010
While conceptually straightforward, placing point-to-point contiguous radiofrequency lesions to achieve pulmonary vein isolation (PVI) is technically challenging in patients with paroxysmal atrial fibrillation. Furthermore, chronic efficacy is limited by late PV reconnections. A novel compliant balloon ablation catheter able to deliver visually guided short arcs/spots of laser energy was tested ...
Neven Kars - - 2010
High-intensity focused ultrasound (HIFU) can achieve pulmonary vein isolation (PVI), but there are safety concerns after severe complications. Therefore, we evaluated an esophageal temperature (ET)-guided safety algorithm to apply HIFU safely. After standard left atrial access, HIFU was repeatedly applied until PVI was complete. A safety algorithm was used: <or=3 ...
Matiello Maria - - 2010
AIMS: Atrial fibrillation (AF) ablation efficacy varies according to patients' clinical characteristics. Although the association of obstructive sleep apnoea (OSA) and AF is well established, data on AF ablation efficacy in OSA are scarce. The aim of this study was to clarify the effect of OSA on the outcome of ...
Mahnken Andreas H - - 2011
The purpose of this article is to report our initial experience with the "off-label" use of a new monopolar radiofrequency (RF) probe for percutaneous ablation of osteoid osteomas. Seventeen patients (12 male and 5 female, mean age 24.8 [range 9-49]) with osteoid osteoma were treated by computed tomography (CT)-guided RF ...
Hunter R J - - 2010
OBJECTIVES: To investigate long-term efficacy of catheter ablation for atrial fibrillation (AF) and the impact of ablating complex or fractionated electrograms (CFEs) in addition to pulmonary vein isolation and linear lesions in persistent AF (PeAF). METHODS: Consecutive cases from 2002-2007 were analysed. All the patients underwent a wide-area circumferential ablation ...
Igarashi Miyako - - 2010
In patients with persistent atrial fibrillation (AF), an extensive antiarrhythmic drug (AAD) therapy using class III AADs and class I AADs might be more effective in restoring sinus rhythm than class I or III AADs alone. However, the significance and efficacy of this treatment before radiofrequency catheter ablation is unclear. ...
Veasey R A - - 2010
The practise of catheter ablation for atrial fibrillation (AF) is increasing rapidly and is recommended as the treatment of choice in many patient subgroups. At present, the efficacy of this procedure has been assessed by means of electrocardiographic recording, intermittent Holter monitoring and evaluation of patient symptoms. We sought to ...
Yamaguchi Yoshio - - 2010
Complete isolation of the posterior left atrium, including all pulmonary veins (box isolation), is a feasible and safe atrial fibrillation (AF) treatment method. Data on long-term effects of box isolation on autonomic function, however, remain limited. A total of 92 patients (paroxysmal AF, n=76; persistent AF, n=16) undergoing box isolation ...
Crocetti Laura - - 2010
This study was designed to compare feasibility, safety, and effectiveness of microwave (MW) ablation versus radiofrequency (RF) ablation of lung tissue in a rabbit model. Twenty New Zealand White rabbits were submitted to MW (n = 10, group A) or RF ablation (n = 10, group B). The procedures were ...
Gallagher Mark Michael - - 2010
To investigate the use of ambulatory electrocardiogram (ECG) monitoring in atrial fibrillation (AF) to predict recurrence after electrical cardioversion (ECV). RR interval variables were obtained from 24 hours ECGs recorded before ECV in 119 patients (85 men, age 66 +/- 10 years) with persistent AF. Patients were followed for 1 ...
Baranowski Bryan - - 2010
Rapid, disorganized firing from a pulmonary vein (PV) focus may initiate atrial fibrillation. The natural history of PV atrial tachycardia (AT), resulting in a slower, more organized form of firing, is less clear. Furthermore, the optimal therapeutic approach to a PV AT is poorly defined. This study assessed the characteristics ...
Disertori Marcello - - 2010
BACKGROUND: Atrial fibrillation (AF) is a common arrhythmia that frequently recurs after restoration of sinus rhythm (SR). Identifying risk factors for recurrence may help define the best strategy for secondary prevention. METHODS: The GISSI-AF trial enrolled 1,442 patients in SR with at least 2 documented AF episodes in the previous ...
Zhang Jing-Bo - - 2010
Intravenous administration of recombinant tissue plasminogen activator (rtPA) is known as the only approved treatment for acute ischemic stroke. However, it is still controversial whether acute ischemic stroke patients with atrial fibrillation should receive rtPA therapy. We studied 99 patients altogether who belonged to three different groups based on the ...
Ad Niv - - 2010
OBJECTIVE: Surgical ablation for the treatment of atrial fibrillation is now being performed routinely in centers throughout the world. After the hospital stay, patients' care is usually delivered by cardiologists who are often unfamiliar with the nuances of the procedure, as well as the management of patients' medical regimens and ...
Kawamura Mitsuharu - - 2010
This study has evaluated whether candesartans prevent the recurrence of atrial fibrillation (AF) and decrease type III procollagen-N-peptide (PIIINP) levels. A total of 153 patients with AF were enrolled in this study. Three groups of patients were compared; candesartan group was treated with candesartan plus bepridil (n = 52); and ...
Tekumit H - - 2010
The aim of the study was to assess the midterm results of left atrial bipolar radiofrequency ablation combined with a mitral valve procedure in patients with mitral valve disease and persistent atrial fibrillation. Between October 2006 and July 2009, 95 patients with mitral valve disease and persistent atrial fibrillation underwent ...
Di Biase Luigi - - 2010
Remote magnetic navigation (RMN) has been reported as a feasible and safe mapping and ablation system for treatment of ventricular arrhythmias (VAs). However, the reported success rates have been limited with the 4- and 8-mm catheter tips. This study sought to report the results in a large series of consecutive ...
Mardinger Ofer - - 2010
This study was a retrospective assessment of reentry sinus augmentation compared with sinus augmentation performed for the first time. There were 38 subjects who required sinus augmentation. The study group (17 patients, 21 sinuses) included subjects following failure of a previous sinus augmentation procedure that required reentry augmentation. The control ...
Carrafiello Gianpaolo - - 2010
The purpose of this study was to evaluate the safety and efficacy of percutaneous ultrasound (US)-guided radiofrequency ablation (RFA) in patients with intrahepatic cholangiocarcinoma (ICCA) in a small, nonrandomized series. From February 2004 to July 2008, six patients (four men and two women; mean age 69.8 years [range 48 to ...
Yamashita Eiji - - 2010
Transesophageal echocardiography (TEE) is useful for detecting left atrial (LA) thrombus prior to percutaneous LA catheter ablation in patients with atrial fibrillation (AF). This study was designed to evaluate clinical predictors of LA thrombus and determine indications for TEE screening prior to LA ablation. The study consisted of 446 patients ...
Caponi Domenico - - 2010
AIMS: To compare in a randomized and prospective fashion the outcome of atrial fibrillation (AF) ablation either after one procedure or after two procedures using the Carto-XP vs. the Carto-Merge mapping system in two different AF populations. METHODS AND RESULTS: Two hundred and ninety-nine patients with paroxysmal and persistent AF ...
Kühne Michael - - 2010
Cryoballoon ablation has emerged as a novel treatment option for drug-refractory atrial fibrillation (AF). The purpose of this manuscript is to report the initial experience of a Swiss centre performing cryoballoon ablation, and to provide a critical review of the literature. Fourteen patients (age 59 +/- 10 years, LVEF 57 ...
Kuhn Elmar W - - 2010
Ablation outcomes were investigated in patients with and without statin pretreatment before cardiac surgery with concomitant surgical ablation for atrial fibrillation (AF). A prospective cohort study was performed containing 149 patients (n=73 statin group vs. n=76 control group) undergoing on-pump cardiac procedures with surgical ablation for paroxysmal or persistent AF. ...
Ning Man - - 2010
BACKGROUND: Extensive atrial fibrillation (AF) ablation is associated with an increased success rate of catheter ablation in chronic AF patients and an increased rate of atrial tachycardia (AT) during the procedure. The mechanism of these ATs varies in previous studies. Our study aimed to report the mechanism of organized AT ...
Endo Ayaka - - 2010
The Japanese Rhythm Management Trial for Atrial Fibrillation (J-RHYTHM) study showed rhythm control was associated with fewer changes in the assigned treatment strategy compared to rate control in atrial fibrillation (AF). The aim was to describe how antiarrhythmics (AAs) were altered in the rhythm control arm and whether altering AAs ...
Bramer Sander - - 2010
There are still doubts on the effect of preoperative atrial fibrillation (AF) on early and late mortality after coronary artery bypass grafting (CABG). This retrospective study demonstrates the effects of preoperative AF on the short-term and long-term survival after CABG. We retrospectively analysed the data of 10626 patients who underwent ...
Mikhaylov Evgeny - - 2010
OBJECTIVE: Additional septal linear ablation in patients undergoing ablation of long-standing persistent atrial fibrillation (AF) could be beneficial due to additional extensive atrial tissue ablation and incidental ablation of sites with complex fractionated electrograms. We assessed the long-term outcome of patients after ablation of long-standing persistent AF with an additional ...
Marsh P - - 2010
Early success treating incompetent perforator veins (IPVs) with radiofrequency ablation (RFA) and the trend to move varicose vein surgery into a walk-in walk-out service led to the design of a specific device enabling RFA of IPVs using local anaesthesia (ClosureRFS stylet). Our aim was to assess one-year outcomes of a ...
Henry Linda - - 2010
BACKGROUND: Surgical ablation for atrial fibrillation is associated with early and late recurrence of atrial arrhythmias. Although early arrhythmias may be controlled with conventional treatment, late arrhythmias are often highly symptomatic and relatively hard to manage with antiarrhythmic drugs and electrical cardioversion. This study explores a single-center experience with catheter ...
Luik Armin - - 2010
BACKGROUND: Atrial fibrillation is the most commonly encountered clinical arrhythmia, and there are an increasing number of patients with paroxysmal atrial fibrillation treated by catheter ablation. The criterion standard is the isolation of the pulmonary veins (PVs) using radiofrequency (RF) energy in combination with an open irrigated tip catheter. The ...
Yoshitake Michio - - 2010
There has been little investigation of whether atrial function is equally restored by surgery in patients with mitral regurgitation (MR) and atrial fibrillation (AF) compared to patients in sinus rhythm (SR). We evaluated left atrium (LA) volume-time curves obtained from electron beam tomography. The study involved 33 patients who had ...
Janin Sebastien - - 2010
Delayed interatrial conduction, manifested on the electrocardiogram as a P wave >or=110 ms (interatrial block, IAB), is highly prevalent and associated with atrial fibrillation (AF). It is correlated with P-terminal force (Ptf; product of the duration and amplitude of the negative terminal phase of the P wave in lead V1). ...
Singhal P - - 2010
INTRODUCTION: Atrial fibrillation (AF) is the most common complication after coronary artery bypass grafting (CABG). Conventional clinical practice is to treat AF after its onset in the postoperative period. However effective prophylaxis can result in reduced morbidity and hospital stay. This prospective study was designed to assess the efficacy of ...
Carrafiello G - - 2010
PURPOSE: The purpose of our study was to retrospectively evaluate the feasibility, safety and effectiveness of microwave ablation (MWA) in nine patients with unresectable lung tumour. MATERIALS AND METHODS: Ten lesions were treated in ten ablation sessions in nine patients. The treatments were performed with a microwave generator with 45 ...
Bastani Hamid - - 2010
AIMS: Radiofrequency (RF) catheter ablation in the septum close to the atrioventricular (AV) node or His bundle has an increased risk of irreversible complications. Cryothermal energy has the advantages of reversible cryomapping and increased catheter stability. This study evaluates the usefulness of cryoablation in superoparaseptal and septal accessory pathways (APs). ...
Tzou Wendy S - - 2010
Pulmonary vein isolation (PVI) is increasingly used for treatment of atrial fibrillation (AF), but few reports exist regarding long-term success. We determined 5-year outcomes of PVI among patients with freedom from AF off antiarrhythmic drugs (AAD) for 1 year after PVI. Consecutive patients with paroxysmal or persistent AF who underwent ...
Badger Troy J - - 2010
We evaluated scar lesions after initial and repeat catheter ablation of atrial fibrillation (AF) and correlated these regions to low-voltage tissue on repeat electroanatomic mapping. We also identified gaps in lesion sets that could be targeted and closed during repeat procedures. One hundred forty-four patients underwent AF ablation and received ...
Nault Isabelle - - 2010
Treatment strategy for atrial fibrillation (AF) is a controversial matter. Catheter ablation is increasingly being used to treat patients with AF, and recent studies have reported success rates >80% for paroxysmal AF and >70% for persistent AF. The purpose of this work is to review the evidence supporting catheter ablation ...
Sovilj Sinisa - - 2010
In patients undergoing coronary artery bypass grafting (CABG) surgery, post-operative atrial fibrillation (AF) occurs with a prevalence of up to 40%. The highest incidence is seen between the second and third day after the operation. Following cardiac surgery AF may cause various complications such as hemodynamic instability, heart attack and ...
Gandhi Ajay - - 2010
OBJECTIVE: To evaluate patient satisfaction following endothermal ablation for varicose veins (VVs). METHODS: A 12-question survey was sent to consecutive patients treated with endothermal ablation--questions related to preprocedure symptoms, recurrence, further treatments, and patient satisfaction. RESULTS: Questionnaires sent a median 12 (range 6-22) months postintervention were returned by 177 (60.0%) ...
Yamanaka Kazuo - - 2010
Although the left atrial appendage (LAA) is excised to prevent thrombosis in the maze procedure, it remains unclear whether LAA is retained in expectation of LAA booster function. Therefore, we quantitatively assessed LAA size and function after the maze procedure in patients with chronic atrial fibrillation (AF) and mitral valve ...
Edgerton James R - - 2010
BACKGROUND: Advances in technology such as epicardial bipolar radiofrequency pulmonary vein isolation, ganglionated plexi identification, and isolation and thoracoscopic left atrial appendage exclusion have enabled less invasive surgical options for management of atrial fibrillation. METHODS: We performed a prospective, nonrandomized study of consecutive patients with symptomatic paroxysmal atrial fibrillation undergoing ...
Van Gelder Isabelle C - - 2010
BACKGROUND: Rate control is often the therapy of choice for atrial fibrillation. Guidelines recommend strict rate control, but this is not based on clinical evidence. We hypothesized that lenient rate control is not inferior to strict rate control for preventing cardiovascular morbidity and mortality in patients with permanent atrial fibrillation. ...
Verma Atul - - 2010
This multicentre, randomized trial compared three strategies of AF ablation: ablation of complex fractionated electrograms (CFE) alone, pulmonary vein isolation (PVI) alone, and combined PVI + CFE ablation, using standardized automated mapping software. Patients with drug-refractory, high-burden paroxysmal (episodes >6 h, >4 in 6 months) or persistent atrial fibrillation (AF) ...
Ahmed Sheba - - 2010
AIMS: Amiodarone is associated with significant adverse effects. We hypothesized that episodic amiodarone treatment would be associated with better quality of life (QoL) compared with continuous treatment in the prevention of recurrent atrial fibrillation (AF). METHODS AND RESULTS: Quality of life was assessed in 158 patients from the Continuous vs. ...
Subramonia S - - 2010
BACKGROUND: This randomized clinical trial compared early outcomes after radiofrequency ablation (RFA) and conventional surgery for varicose veins. METHODS: Consecutive patients with symptomatic varicose veins due to isolated great saphenous vein (GSV) incompetence and suitable for RFA were randomized to either RFA or conventional surgery (saphenofemoral disconnection and stripping). Clinical, ...
Dewire Jane - - 2010
Catheter ablation is an important treatment modality for patients with atrial fibrillation (AF). Although the superiority of catheter ablation over antiarrhythmic drug therapy has been demonstrated in middle-aged patients with paroxysmal AF, the role the procedure in other patient subgroups-particularly those with long-standing persistent AF-has not been well defined. Furthermore, ...
Di Donna Paolo - - 2010
AIMS: In patients with hypertrophic cardiomyopathy (HCM) and atrial fibrillation (AF), radiofrequency catheter ablation (RFCA) represents a promising option. However, the predictors of RFCA efficacy remain largely unknown. We assessed the outcome of a multicentre HCM cohort following RFCA for symptomatic AF refractory to medical therapy. METHODS AND RESULTS: Sixty-one ...
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