Search Results
Results 51 - 100 of 1024
1 2 3 4 5 6 7 8 9 10 >
Takahashi Yoshihide - - 2010
We sought to characterize patients with persistent atrial fibrillation (AF) who were successfully treated by ablation targeting the left atrium (LA). Ninety-three patients (58±10 years, 79 male) undergoing ablation of persistent AF were studied. During the first procedure, ablation was performed in the LA and coronary sinus, consisting of pulmonary ...
Aleksova Aneta - - 2010
There is a paucity and inconsistency of data regarding the natural history of patients affected by idiopathic dilated cardiomyopathy (IDCM) and atrial fibrillation (AF). We examined the prognostic implications of AF in a subset of patients with IDCM. We analyzed the data of 539 patients with IDCM enrolled in the ...
Chilukuri Karuna - - 2010
To assess the utility of transoesophageal echocardiography (TEE) parameters such as spontaneous echo contrast (SEC), left atrial (LA) appendage velocities, and aortic plaque in predicting periprocedural cerebrovascular accidents (CVAs) in patients undergoing catheter ablation of atrial fibrillation (AF). Five hundred and seventy-nine consecutive patients underwent catheter ablation of AF with ...
Dabrowski RafaƂ - - 2010
BACKGROUND: Atrial fibrillation (AF) may cause electrical and structural atrial remodelling, leading to progression from paroxysmal to permanent form of arrhythmia. Predictors of such a transition have not yet been well established. AIM: To assess the role of B-type natriuretic peptide (BNP) and left ventricular (LV) diastolic impairment in prediction ...
Ardestani Afrooz - - 2010
Atrial fibrillation (AF) and obesity have reached epidemic proportions. The impact of obesity on clinical outcomes in patients with established AF is unknown. We analyzed 2,492 patients in the Atrial Fibrillation Follow-Up Investigation of Rhythm Management (AFFIRM) study. Body mass index (BMI) was evaluated as a categorical variable (normal 18.5 ...
Matsuo Seiichiro - - 2010
BACKGROUND: The elimination of transient pulmonary vein (PV) reconduction (dormant PV conduction) revealed by adenosine in addition to PV isolation reduced the atrial fibrillation (AF) recurrence after catheter ablation. The dormant PV conduction is induced in approximately half of the AF patients that undergo PV isolation. The present study compared ...
Röther Joachim - - 2010
Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia. It is associated with increased cardiovascular mortality and morbidity, including stroke. Rate or rhythm control and prevention of thromboembolism with oral anticoagulants are the main management objectives for patients with AF. Until recently, rhythm control studies did not show prevention ...
Takashima Hideo - - 2010
We evaluated the conduction properties of the posterior left atrium (LA) using a non-contact mapping (NCM) system as well as the significance of linear ablation at the roof of the posterior LA (LA roof) and inferior region of the posterior LA (LA bottom). In 133 patients with atrial fibrillation (AF) ...
Hou Jianping - - 2010
To investigate whether acute atrial fibrillation (AF) creates a prothrombotic state in hypertensive patients, and to assess the evolution in research indices after cardioversion. Plasma levels of von Willebrand factor (vWf), soluble P-selectin and fibrin D-dimers were measured in hypertensive patients with acute AF pre-cardioversion and at 1, 7, 14, ...
Sinha Anil-Martin - - 2010
Patients with atrial fibrillation (AF) are at increased risk for ischemic stroke. In patients who have suffered a stroke, screening for AF is routinely performed only for a short period after the stroke as part of the evaluation for possible causes. If AF is detected after an ischemic stroke, oral ...
Huntley Colin - - 2010
OBJECTIVES/HYPOTHESIS: To re-evaluate the usefulness of airway fluoroscopy (AF) in diagnosing laryngomalacia and to determine the effectiveness of AF in diagnosing laryngomalacia depending on the specific lesion. STUDY DESIGN: Retrospective chart review. METHODS: Patients from 0 to 12 months of age who presented with stridor were evaluated. Those who underwent ...
Chyou Janice Y - - 2010
BACKGROUND: Patients who have undergone percutaneous catheter ablation for atrial fibrillation (AF) may develop cavotricuspid isthmus (CTI)-dependent atrial flutter (AFL), which can occur either spontaneously during left atrial (LA) ablation for AF or by induction from sinus rhythm during the procedure. The electrocardiographic (ECG) characteristics of CTI-dependent AFL occurring during ...
Kong Melissa H - - 2010
BACKGROUND: Although no clinical trial data exist on the optimal management of atrial fibrillation (AF) in patients with diastolic heart failure, it has been hypothesized that rhythm-control is more advantageous than rate-control due to the dependence of these patients' left ventricular filling on atrial contraction. We aimed to determine whether ...
Mahnkopf Christian - - 2010
Lone atrial fibrillation (AF) is thought to be a benign type or an early stage of the disease. This study sought to compare the left atrium (LA) substrate using delayed-enhanced magnetic resonance imaging (DE-MRI) in patients with lone AF versus those with comorbidities. Forty of 333 included patients met criteria ...
Cervigón R - - 2010
Recent studies on atrial fibrillation (AF) have identified different activation patterns in paroxysmal and persistent AF. In this study, bipolar intra-atrial registers from 28 patients (14 paroxysmal AF and 14 persistent AF) were analyzed in order to find out regional differences in the organization in both types of arrhythmias. The ...
Kasper Bernd - - 2010
We used (18)F-FDG PET to evaluate the FDG uptake in patients with aggressive fibromatosis (AF, also known as desmoid tumours) undergoing therapy with imatinib (imatinib mesylate, Glivec). The pilot study included nine patients with progressive AF receiving oral treatment with imatinib at a daily dose of 800 mg. Patients were ...
Park Jae Hyung - - 2010
Complex fractionated atrial electrogram (CFAE) guided ablation is effective in some patients with persistent atrial fibrillation (PeAF), but the pattern of CFAE may be different in the remodeled left atrium (LA). In 100 AF patients (83 males, 55.0+/-10.6 years old) with AF (51 paroxysmal AF (PAF), 49 PeAF) who underwent ...
Lin Yenn-Jiang - - 2010
The adjunctive role of dominant frequency (DF) mapping during complex fractionated electrogram (CFE) ablation of atrial fibrillation (AF) has not been clarified. The purpose of this study was to investigate whether DF distribution or substrate properties are related to fibrillatory activity in the left atrium (LA) and to evaluate the ...
Paciaroni Maurizio - - 2010
Patients with atrial fibrillation (AF) on treatment with oral anticoagulants may still suffer ischemic cerebrovascular events. The aim of this study was to evaluate the risk factors for cerebral ischemic events in warfarin-treated AF patients with an International Normalized Ratios (INR) above 1.8 on admission. In a case-control study, cases ...
Sohns Christian - - 2011
The aim of this study was to investigate the prevalence of extracardiac findings diagnosed by 64-multidetector computed tomography (MDCT) examinations prior to circumferential pulmonary vein (PV) ablation of atrial fibrillation (AF). A total of 158 patients (median age, 60.5 years; male 68%) underwent 64-MDCT of the chest and upper abdomen ...
Wong Christopher X - - 2010
Patients with lone atrial fibrillation (AF) have an abnormal atrial substrate. The purpose of this study was to determine the role of direction-dependent conduction in patients with lone AF. Twenty-four patients with paroxysmal lone AF and 24 reference patients with left-sided accessory pathways were studied. Multipolar catheters placed at the ...
Ariansen Inger - - 2010
OBJECTIVES: The AHA/ACC/ESC Guidelines for management of atrial fibrillation (AF) patients suggest criteria for adequate rate control. We hypothesized that AF patients fulfilling these criteria would have better quality of life (QoL) and exercise capacity compared to the ones not fulfilling the criteria. DESIGN: Heart rate at rest, during moderate ...
Ramsoekh Dewkoemar - - 2010
OBJECTIVE: To compare the sensitivity of autofluorescence endoscopy (AFE) and white light video endoscopy (WLE) for the detection of colorectal adenomas in high-risk patients belonging to Lynch syndrome (LS) or familial colorectal cancer (CRC) families. METHODS: This was a prospective single-centre study carried out in a tertiary referral centre. The ...
Stiell Ian G - - 2010
BACKGROUND: The efficacy and safety of vernakalant, a relatively atrial-selective antiarrhythmic agent, in converting atrial fibrillation (AF) to sinus rhythm (SR) were evaluated in this multicenter, open-label study of patients with AF lasting >3 hours and < or =45 days (RCT no. NCT00281554). METHODS: Adult patients with AF and an ...
Testai Fernando D - - 2010
It is estimated that atrial fibrillation (AF) is responsible for almost 15% of all strokes. Several randomized clinical trials have demonstrated the superiority of adjusted-dose warfarin over aspirin for stroke prevention in AF patients, particularly in high-risk individuals. Current national guidelines from the American Heart Association/American Stroke Association recommend the ...
Drewitz Imke - - 2010
Termination of persistent atrial fibrillation (AF) can be achieved through ablation, with the majority of patients terminating to an atrial tachycardia (AT) and fewer directly to sinus rhythm (SR). We aimed to identify potential predictors for the existence of a substrate for AT on termination to SR. We assessed 95 ...
Duray Gabor Z - - 2010
Dronedarone is a new multichannel blocker, structurally related to amiodarone but free of iodine and less lipophilic and so expected to be free of iodine-related organ toxicity and tissue accumulation. The drug was developed for the treatment of atrial fibrillation (AF). The phase II Dronedarone Atrial FibrillatioN study after Electrical ...
Maehama Tomoko - - 2010
BACKGROUND: There is an apparent link between thrombogenesis and inflammation. We hypothesized that systemic inflammation [as indicated by C-reactive protein (CRP)] would be related to the presence of left atrial (LA) thrombus in patients with atrial fibrillation (AF). To test this hypothesis, we evaluated the relationship between CRP and LA ...
Higuchi Koji - - 2010
The superior vena cava (SVC) is an important focus of atrial fibrillation (AF) for which SVC isolation is effective. However, SVC isolation may cause serious complications, and indications for SVC isolation combined with pulmonary vein (PV) isolation are unclear. The purpose of this study was to identify structural and electrophysiologic ...
Taylor C J - - 2010
Atrial fibrillation (AF) is the commonest rhythm disorder and has major impact on patients. Controversy remains about the best treatment strategy between rate and rhythm control (in addition to adequate thromboprophylaxis). Rhythm control agents are associated with clinically important adverse events. The aim of this study was to assess the ...
Teh Andrew W - - 2010
Complex fractionated atrial electrograms (CFAEs) are often identified as targets for radiofrequency ablation in the coronary sinus (CS) of patients with atrial fibrillation (AF). The purpose of this study was to determine whether similar features are present in a normal control population. Twenty-four patients with AF (12 paroxysmal, 12 persistent) ...
Jeevanantham Vinodh - - 2010
The effects of radiofrequency catheter ablation (RFCA) on left atrial (LA) size, volumes, and function in patients with atrial fibrillation (AF) are not well understood. The aim of this study was to systematically review the effects of RFCA on LA size, volumes, and function in patients with AF. Medline, the ...
Sternik Leonid - - 2010
BACKGROUND: Although atrial fibrillation (AF) ablation is efficient in many patient cohorts, its effect on rheumatic heart disease remains controversial. We describe a retrospective comparison of surgical ablation using the same technique in rheumatic versus nonrheumatic patients. METHODS: Between 2004 and 2009, we performed AF ablation as a part of ...
Kalus James S - - 2010
PURPOSE: To discuss the therapeutic goals in patients with atrial fibrillation (AF); antithrombotic, rate-control, and rhythm-control medications used in these patients; rationale for choosing between rate-control and rhythm-control strategies; and safety, efficacy, and patient-specific considerations in choosing among established antiarrhythmic medications for these patients. SUMMARY: The three primary goals for ...
Opolski Grzegorz - - 2010
BACKGROUND: The RecordAF study is the first worldwide, prospective, observational survey on the management of patients with recently diagnosed atrial fibrillation (AF). AIM: This paper presents the baseline characteristics of the Polish patients enrolled in this registry. METHODS: The registry enrolled patients > or = 18 years old with recently ...
Vaisbuch Edi - - 2010
The objective of the study was to determine the frequency and clinical significance of intraamniotic inflammation in asymptomatic women with a sonographic short cervix (SCX) in the midtrimester. This cohort study included 47 asymptomatic women (14-24 weeks) with an SCX (<or=15 mm) who underwent amniocentesis. Women with multiple gestation, cerclage, ...
Raunsø Jakob - - 2010
The prognostic importance of atrial fibrillation (AF) in heart failure (HF) populations is controversial and may depend on patient selection. In the present study, we investigated the prognostic impact of AF in a large population with HF of various aetiologies. We included 2881 patients admitted to hospital with symptoms of ...
Konecny Tomas - - 2010
The aim of this study was to investigate whether patients with hypertrophic cardiomyopathy (HC) and sleep disordered breathing (SDB) have a higher prevalence of atrial fibrillation (AF) compared to patients with HC without SDB. HC is associated with a high prevalence of AF that contributes to increased morbidity and mortality. ...
Solheim Eivind - - 2010
Substrate-based radiofrequency ablation for treatment of atrial fibrillation (AF) is still under development. The purpose of this study was to investigate the different characteristics and distribution of complex fractionated atrial electrograms (CFAE) in both atria in patients with paroxysmal and persistent AF. The NavX system was used to map the ...
Arslan Cagatay - - 2011
Treatment with a bisphosphonate was found to be associated with a significantly increased risk for atrial fibrillation (AF) in a few studies. A recent study showed that once-yearly infusions of intravenous zoledronic acid (ZA) significantly increased the risk of serious AF in postmenopausal women with osteoporosis. This study was conducted ...
Cruz-Gonzalez Ignacio - - 2010
It is postulated that the source of thromboembolism in 90% of patients with non-valvular atrial fibrillation (AF) arises from the left atrial appendage (LAA). Anticoagulation with warfarin is the standard medical therapy for stroke prevention in patients with AF. However, chronic warfarin therapy is contraindicated in 14 to 44% of ...
Wysokinski Waldemar E - - 2010
BACKGROUND: The aim of the study was to determine whether CHADS(2) score is predictive of left atrial appendage thrombus (LAAT) in nonvalvular atrial fibrillation (AF). Strategies for effective stroke prevention in AF require tools capable of identifying those patients at greatest risk for embolization of LAAT and most likely to ...
Kim Sook Kyoung - - 2010
Although electrical cardioversion (CV) is effective in restoring sinus rhythm (SR) in patients with atrial fibrillation (AF), AF frequently recurs in spite of antiarrhythmic medications. We investigated the predictors of failed CV and AF recurrence after successful CV. In 81 patients (M:F=63:18, 59.1+/-10.5 years old) with AF who underwent CV, ...
Sawhney Navinder - - 2010
There has been growing concern that linear ablation is associated with an increased risk of iatrogenic arrhythmias in patients undergoing ablation for atrial fibrillation (AF). Therefore, we compared circumferential pulmonary vein ablation plus left atrial linear ablation (CPVA+LALA) with segmental pulmonary vein isolation (PVI)in patients with paroxysmal AF. Sixty-six consecutive ...
Ozaydin Mehmet - - 2010
The aim of this study was to evaluate the factors associated with the development of atrial fibrillation (AF) in patients with rheumatic mitral stenosis (MS). A total of 146 consecutive patients with rheumatic MS were screened. They were accepted to be in AF group and sinus rhythm group according to ...
Sahin Tayfun - - 2010
OBJECTIVES: Several studies exist on the left atrial appendage function (LAA) in permanent atrial fibrillation (AF). However, knowledge about the right atrial appendage (RAA) function is limited. We investigated RAA function with TEE and tissue Doppler imaging (TDI) in permanent AF patients with different etiologies and evaluated predictive parameters of ...
Hocini Mélèze - - 2010
The purpose of this study was to assess whether additional ablation in the right atrium (RA) improves termination rate in long-lasting persistent atrial fibrillation (PsAF). Prolongation of atrial fibrillation (AF) cycle length (CL) measured from the left atrial appendage predicts favorable outcome during catheter ablation of PsAF. However, in some ...
El-Chami Mikhael F - - 2010
QRSduration (QRSd) is associated with higher mortality and morbidity in patients with left ventricular (LV) dysfunction. The association between QRSd and atrial fibrillation (AF) has not been studied in this patient population. To investigate the association between QRSd and AF in patients with LV dysfunction. Data were obtained from the ...
Santangeli Pasquale - - 2010
Patients with permanent pacemakers (PM) are at high risk of developing atrial fibrillation (AF). Minimal ventricular pacing modalities have been demonstrated to reduce AF in such patients, although they are not suitable for patients with advanced atrioventricular conduction disease. Recent evidences suggest that 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors (i.e. statins) ...
Martinek Martin - - 2010
Atrioesophageal fistula is an uncommon but life-threatening complication of atrial fibrillation (AF) ablation. Esophageal ulcerations (ESUL) have been proposed to be potential precursor lesions. The purpose of our study was to prospectively investigate the incidence of ESUL in a large patient population undergoing radiofrequency catheter ablation (RFA). Additionally, we aimed ...
1 2 3 4 5 6 7 8 9 10 >