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Siu Chung-Wah - - 2010
AIMS: To determine whether the number of circulating endothelial progenitor cells (EPCs) in patients with persistent atrial fibrillation (AF) predicts arrhythmia recurrence after direct current cardioversion (DCCV). METHODS AND RESULTS: The numbers of circulating CD34+/KDR+ EPCs were determined with flow cytometry in 51 consecutive patients with persistent AF [the mean ...
Tang Ri-bo - - 2009
BACKGROUND: Metabolic syndrome (MetS) and atrial fibrillation (AF) are causally related. This study aimed to determine the prevalence of MetS in patients with AF in the absence of structural heart disease from a tertiary hospital in China. METHODS: In a single center, 741 inpatients with AF in the absence of ...
Chou Che-Yi - - 2010
BACKGROUND: End-stage renal disease (ESRD) patients are more at risk for atrial fibrillation (AF) than the general population. However, the prognosis in ESRD patients with paroxysmal AF (PaAF), permanent AF (PAF) and paroxysmal AF transformed to permanent AF (TAF) is unknown. METHODS: In this retrospective longitudinal study, all ESRD patients ...
Bugnicourt Jean-Marc - - 2010
BACKGROUND: Elevated levels of cardiac troponin I (cTnI) have been reported in acute stroke and atrial fibrillation (AF). We tested a hypothesis in which the result of an initial cTnI assay helps predict new-onset AF (NAF) early in the course of ischaemic stroke in patients with sinus rhythm on admission. ...
Steinwender Clemens - - 2010
BACKGROUND: Catheter-based pulmonary vein (PV) isolation has emerged as established therapy for patients with paroxysmal atrial fibrillation (AF). OBJECTIVE: The purpose of this study was to determine the results at 1-year follow-up after PV isolation was performed using a single novel multipolar catheter for mapping and ablation. METHODS: Patients with ...
Schilling Richard J - - 2010
Atrial fibrillation (AF) is the commonest atrial arrhythmia and represents a large burden on modern health services. Large multicentre randomised trials have demonstrated that a rhythm control strategy (using antiarrhythmic drugs and direct current (DC) cardioversion) has no morbidity or mortality advantage over rate control. Therefore, for most patients, attempts ...
F?rnkranz Alexander - - 2010
BACKGROUND: Pulmonary vein isolation using the cryoballoon technique (CB-PVI) has evolved into a simple and safe alternative for point-by-point radiofrequency ablation. Systematic analysis of conduction recovery occurring after CB-PVI and causing recurrent atrial fibrillation has not yet been performed. OBJECTIVE: The purpose of this study was to analyze conduction recovery ...
Nakamura Koki - - 2011
We used ECG-gated MSCT to evaluate alterations in the LA wall in patients with paroxysmal atrial fibrillation (AF) (PAF) and compared with chronic AF (CAF) and normal sinus rhythm (NSR). We enrolled 3 groups, each consisting of 62 patients with either recurrent PAF (48 males, 65±11years), CAF (43 males, 69±9years), ...
Fumagalli Stefano - - 2010
BACKGROUND AND AIMS: Atrial fibrillation (AF) is the most common arrhythmia in elderly people, who are particularly exposed to its most severe complications, such as stroke, worsening heart failure and dementia. Some studies demonstrate that AF is associated with increased mortality in home-dwelling subjects, but little is known about the ...
Fukuda Shota - - 2009
The widespread use of transesophageal echocardiography (TEE) is limited by disadvantages, including patient intolerance and increased medical costs. We aimed to investigate the feasibility and safety of transnasal TEE in the detection of possible embolic sources in patients with atrial fibrillation (AF) and/or stroke, using an ultrathin TEE probe. Sixty-two ...
Erez Offer - - 2009
Preterm labor is associated with excessive maternal thrombin generation, as evidenced by increased circulating thrombin-antithrombin (TAT) III complexes concentration. In addition to its hemostatic functions, thrombin has uterotonic properties that may participate in the mechanism leading to preterm birth in cases of intrauterine bleeding. Thrombin also has a proinflammatory role, ...
Ahmad O - - 2009
BACKGROUND: Atrial fibrillation (AF) is an important predisposing factor for ischaemic stroke. There is evidence to suggest that even in appropriate candidates warfarin therapy is underutilized. We assessed the prevalence of AF in an Australian stroke unit to determine the degree of undertreatment at presentation. METHODS: A retrospective analysis of ...
Lleva Paul - - 2009
Of 136 patients, mean age 72 years, receiving digoxin in the hospital or in the medical clinic, 47 (35%) had heart failure with reduced left ventricular ejection fraction and symptoms despite optimal medical therapy, 82 (60%) had persistent atrial fibrillation (AF), and 7 (5%) had paroxysmal AF. The prevalence of ...
Kamel Hooman - - 2009
BACKGROUND: Detection of atrial fibrillation (AF) after ischemic stroke is important because anticoagulation is indicated to reduce the risk of recurrent stroke. However, no consensus exists about the optimum method for detecting underlying paroxysmal AF not apparent on presentation with stroke. The aim of this study was to characterize the ...
Nair Chandra K - - 2009
BACKGROUND: The effect of mitral regurgitation (MR) on the incidence of new cerebrovascular accidents (CVA) and mortality in patients with atrial fibrillation (AF) and left atrial thrombus (LAT) is unknown. OBJECTIVE: To investigate the effect of MR in patients with AF and LAT on new CVA and mortality. METHODS: Eighty ...
Guo Xiao Hua - - 2010
Abnormal AV nodal behaviour could contribute to recurrence of Atrial Fibrillation (AF) after electrical cardioversion (ECV). We constructed RR interval histograms from 24-hour ECGs recorded before ECV in 98 patients with persistent AF. RR histograms were classified as unimodal or bimodal, and bimodal histograms classified into distinctly or indistinctly bimodal. ...
Tsao Hsuan-Ming - - 2010
INTRODUCTION: Elucidating the functional properties and remodeling process of the entire left atrium (LA) is important not only for offering the mechanistic insight into atrial fibrillation (AF) but also for assessing the effectiveness of catheter ablation. METHODS: We included 65 patients with paroxysmal AF and 29 controls. Baseline multidetector computed ...
Perez Marco V - - 2009
BACKGROUND: Atrial fibrillation (AF) is the most prevalent arrhythmia in the United States and accounts for more than 750,000 strokes per year. Noninvasive predictors of AF may help identify patients at risk of developing AF. Our objective was to identify the electrocardiographic characteristics associated with onset of AF. METHODS: This ...
Chaldoupi Sevasti-Maria - - 2009
BACKGROUND: Atrial fibrillation (AF) is a major cause of cerebral infarction. Idiopathic AF is strongly associated with the human minor connexin 40 (Cx40) promotor polymorphism. We examined the prevalence of the minor Cx40 allele in patients with cerebral ischemia and no other cardiovascular disease (CVD), as an indication of underlying ...
Lerner R G - - 2009
BACKGROUND: Warfarin affects the synthesis and function of the matrix Gla-protein, a vitamin K-dependent protein, which is a potent inhibitor of tissue calcification. OBJECTIVES: To investigate the incidence of mitral valve calcium (MVC), mitral annular calcium (MAC) and aortic valve calcium (AVC) in patients with non-valvular atrial fibrillation (AF) treated ...
Chilukuri Karuna - - 2010
Early recurrence of atrial tachyarrhythmias is commonly noted after catheter ablation of atrial fibrillation (AF). The long-term outcomes of patients who require cardioversion for persistent AF after AF ablation is not known. This study reports the outcomes of patients who underwent cardioversion for persistent AF or atrial flutter following an ...
Lin Yueh-Juh - - 2009
BACKGROUND: The purpose of this study was to evaluate serial changes in QRS duration in the 12-lead electrocardiogram (ECG) and their prognostic value in patients with atrial fibrillation (AF). METHODS: Retrospective evaluation of the 12-lead ECG was performed in 822 patients with AF. Inclusion criteria included AF in two sequential ...
Park Jai-Wun - - 2009
PURPOSE: In more than 90% of patients with atrial fibrillation (AF), stroke is due to thrombotic embolization from the left atrial appendage (LAA). Transcatheter occlusion with percutaneous left atrial appendage transcatheter occlusion (PLAATO), a self-expanding, membrane- covered spherical nitinol cage, is feasible and an alternative to anticoagulation therapy. METHODS: This ...
Al Aloul Basel - - 2009
BACKGROUND: In patients with atrial fibrillation (AF) and atrial flutter (AFL), the value of the 12-lead surface electrocardiogram (ECG) in predicting direct current cardioversion (DCCV) outcomes has not been thoroughly investigated. We sought to determine whether the type of atrial arrhythmia (AF versus AFL) and the characteristics of the atrial ...
Matsuda Yoshio - - 2009
This study aimed to investigate comparative clinical courses for a series of women with amniotic fluid embolism (AFE) and to assess factors associated with patient survival. Clinical courses of nine patients with AFE in a single tertiary centre were reviewed. AFE was diagnosed when a woman presented with typical clinical ...
Szumowski Lukasz - - 2009
BACKGROUND: Atrial fibrillation (AF) in WPW syndrome occurs earlier and is more common than in the general population. AIM: To evaluate the predisposing factors for the first episode of AF in patients with WPW. METHODS: We analysed data on 930 patients (510 males, 420 females) with WPW treated in our ...
Stanton Christopher - - 2009
Isolated left ventricular noncompaction (ILVNC) is a rare congenital cardiomyopathy characterized by prominent trabeculae, deep intertrabecular recesses, and thickened myocardium with 2 distinct layers (compacted and noncompacted). Clinical characteristics, outcomes, and appropriate therapies remain poorly defined. Data were collected on patients diagnosed with ILVNC by echocardiographic criteria at the Mayo ...
Kozlowski Dariusz - - 2010
Atrial fibrillation (AF) is the most common arrhythmia encountered in clinical practice. Despite the common association of AF with cardiovascular disease, some patients can be classified as 'lone AF'. The latter is essentially a diagnosis of exclusion, and should be preceded by careful evaluation, including thorough collection of medical history, ...
Crawford Thomas - - 2010
BACKGROUND: AF can be induced by RAP or ISO in >85% of patients with PAF. METHODS: ISO was administered in escalating doses of 5, 10, 15, and 20 microg/min in 112 patients (age = 56 +/- 13 years) with PAF before radiofrequency catheter ablation. AF was inducible in 97 of ...
Korantzopoulos Panagiotis G - - 2009
End-stage renal disease is associated with considerable cardiovascular morbidity and mortality. Atrial fibrillation (AF) is prevalent among dialysis patients and adversely affects the clinical outcome. Vazquez et al. report an increased prevalence and incidence of AF in patients who commence dialysis, and an independent association between arrhythmia and mortality risk. ...
Maiello Maria - - 2009
OBJECTIVE: Chronic pressure and volume overload may cause different type of left atrial (LA) remodeling in left atrial enlargement (LAE) leading to different cardiovascular outcomes. These two different patterns of LA remodeling can be discriminated by LA eccentricity index (LAEi). The goal of our study was to evaluate an association ...
Sakhuja Rahul - - 2009
Claims in the medical literature suggest that neck fullness and witnessed neck pulsations are useful in the diagnosis of typical AV nodal reentrant tachycardia (AVNRT). Neck fullness and witnessed neck pulsations have a high positive predictive value in the diagnosis of typical AVNRT. We performed a cross-sectional study of consecutive ...
Wo┼║niak-Skowerska I - - 2011
A possible role of anomalies in number and insertion of pulmonary veins (PV) in initiating atrial fibrillation (AF) has been suggested. It has been shown as well that changes in anatomy of PVs such as enlargement may have an effect on arrhythmogenesis. The aim of the study was to compare ...
Kubo Toru - - 2009
BACKGROUND: There have been few studies of the clinical features of hypertrophic cardiomyopathy (HCM) in a community-based patient cohort in Japan. METHODS AND RESULTS: Cardiomyopathy registration was established in Kochi Prefecture and named the Kochi RYOMA (registry of myocardial diseases) study, consisting of 9 hospitals that registered 261 patients with ...
Jurkko Raija - - 2010
Altered atrial conduction is linked to susceptibility to atrial fibrillation (AF). Whether signal propagation to left atrium (LA) during sinus rhythm differs between patients with paroxysmal lone AF and healthy subjects is not known. In 107 patients with lone paroxysmal AF (age 45±12 years) and 94 controls 99-channel magnetocardiography (MCG) was ...
Erez Offer - - 2009
Objective. Preterm labor is associated with excessive maternal thrombin generation, as evidenced by increased circulating thrombin-antithrombin (TAT) III complexes concentration. In addition to its hemostatic functions, thrombin has uterotonic properties that may participate in the mechanism leading to preterm birth in cases of intrauterine bleeding. Thrombin also has a proinflammatory ...
Holmqvist Fredrik - - 2009
BACKGROUND: Changes in P-wave morphology have recently been shown to be associated with interatrial conduction route used, without noticeable changes of P-wave duration. This study aimed at exploring the association between P-wave morphology and future atrial fibrillation (AF) development in the Multicenter Automatic Defibrillator Trial II (MADIT II) population. METHODS: ...
Rezaian Gholam R - - 2009
BACKGROUND: Although atrial fibrillation (AF) is commonly encountered in patients with constrictive pericarditis (CP), little has been done to clarify its associated predisposing factors. Our aim was to evaluate the association of age, gender, disease duration, and pericardial calcification with AF in these patients. METHODS: The medical records of 44 ...
Rigatelli Gianluca G Section of Adult Congenital and Adult Heart Disease, Cardiovascular Diagnosis and Endoluminal Interventions, Rovigo General Hospital, Rovigo, Italy. - - 2009
We postulate that, in patients with large patent foramen ovales (PFO) and atrial septal aneurysms (ASA), left atrial (LA) dysfunction simulating "atrial fibrillation (AF)-like" pathophysiology might represent an alternate mechanism in the promotion of arterial embolism. Despite prior reports concerning paradoxical embolism through a PFO, the magnitude of this phenomenon ...
Bertaglia Emanuele - - 2009
AIMS: The aim of this study was to investigate whether circumferential pulmonary vein (PV) isolation guided by image integration improves the procedural and clinical outcomes of atrial fibrillation (AF) ablation in comparison with segmental PV isolation and circumferential PV isolation guided by three-dimensional (3D) electroanatomical mapping alone. METHODS AND RESULTS: ...
Swartz Michael F - - 2009
The development of atrial fibrillation (AF) after cardiac surgery is associated with adverse outcomes; however, the mechanism(s) that trigger and maintain AF in these patients are unknown. The purpose of this study was to test our hypothesis that postoperative AF is maintained by high-frequency sources in the left atrium (LA) ...
Motoki Hirohiko - - 2009
BACKGROUND: Evaluation of plasma markers of thrombin activity (thrombin-antithrombin III complex: TAT), active fibrinolysis (plasmin-alpha 2-plasmin inhibitor complex: PIC), and platelet activity (platelet factor 4: PF4) is useful for identifying patients with various cardiovascular disorders who are at high risk of thromboembolism. In this study, these markers were investigated in ...
Bhargava Mandeep - - 2009
BACKGROUND/OBJECTIVE: The purpose of this prospective multicenter study was to compare results of catheter ablation in patients with paroxysmal atrial fibrillation (PAF) and those with nonparoxysmal atrial fibrillation (NPAF). The impact and the role of repeat catheter ablation were assessed in patients with recurrence. METHODS/RESULTS: One thousand four hundred four ...
Pontoppidan Jacob - - 2009
BACKGROUND: The aim of this prospective study was to evaluate the recurrences of atrial fibrillation (AF) and flutter (AFL) after circumferential pulmonary vein ablation (CPVA) using repetitive long-term Holter recordings, and to evaluate the change in quality of life (QoL), especially in patients with asymptomatic AF recurrences. METHODS: A total ...
Yokoyama Eriko - - 2009
INTRODUCTION: Increasing evidence suggests that high-frequency excitation in the pulmonary vein (PV) plays a dominant role in the maintenance of paroxysmal atrial fibrillation (AF). However, in a certain population of patients, AF remains inducible after PV isolation (PVI). We sought to clarify whether dominant frequency (DF) analysis of atriopulmonary electrograms ...
Waldenhjort David - - 2009
OBJECTIVES: Heart failure (HF) and atrial fibrillation (AF) are common comorbid conditions in hospitalised patients. AF may occur when left ventricular (LV) systolic function deteriorates. The aim was to compare HF patients with AF to patients in sinus rhythm (SR). DESIGN: Echocardiography and a cardiopulmonary exercise test were performed in ...
Miyakoshi Mutsumi - - 2009
Cibenzoline (CBZ), a class I antiarrhythmic drug, has been widely used to maintain sinus rhythm in patients with paroxysmal atrial fibrillation (P-AF). This agent has an anticholinergic action and will become the drug of first choice for vagally mediated P-AF. We assessed its efficacy quantitatively by analyzing the frequency-domain heart ...
Pokushalov Evgeny - - 2009
BACKGROUND: Selective ganglionated plexi (GP) ablation guided by high-frequency stimulation has been proposed for the treatment of paroxysmal atrial fibrillation (AF), but the efficacy of the method is not established. OBJECTIVE: This study sought to compare selective ablation of GP identified by high-frequency stimulation with extensive regional ablation targeting the ...
Park C-W - - 2009
OBJECTIVE: Histologic placental and/or intra-amniotic inflammation is frequently documented during ascending intra-uterine infections in patients with preterm labor and intact membranes. Placenta previa can be a clinical situation that shows the successive schema of histologic placental and intra-amniotic inflammation during the process of ascending intra-uterine infections. However, a paucity of ...
Cappato Riccardo - - 2009
OBJECTIVES: The purpose of this study was to provide a systematic multicenter survey on the incidence and causes of death occurring in the setting of or as a consequence of catheter ablation (CA) of atrial fibrillation (AF). BACKGROUND: CA of AF is considered to be generally safe. However, serious complications, ...
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