Search Results
Results 251 - 300 of 1024
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Vaisbuch Edi - - 2008
OBJECTIVE: Discolored amniotic fluid (AF) has been associated with intraamniotic infection/inflammation (IAI) in patients with preterm labor (PTL). The presence of hemoglobin and its catabolic products has been implicated as a cause for AF discoloration. The aim of this study was to determine whether there is an association between total ...
Jurkko Raija - - 2008
BACKGROUND: Abnormalities in the electromagnetic signal of the atria during sinus rhythm could serve as markers of triggering foci or substrate for atrial fibrillation (AF). We examined atrial electrophysiologic properties noninvasively by using magnetocardiographic mapping (MCG) in patients with paroxysmal lone AF to find whether any difference exists between those ...
Romero Iñaki - - 2008
Atrial fibrillation (AF) is the most common clinical cardiac arrhythmia and is usually treated with the electrical isolation of the pulmonary veins from the atria. However, it is estimated that about 30% of the patients undergoing this therapy will develop AF again. The purpose of this study was to test ...
Tayal A H - - 2008
OBJECTIVE: Atrial fibrillation (AF) may be present within a subset of patients with presumed cryptogenic TIA or stroke and remains undetected by standard diagnostic methods. We hypothesized that AF may be an under-recognized mechanism for cryptogenic TIA/stroke. METHODS: A consecutive series of 56 patients with cryptogenic TIA/stroke was analyzed after ...
Haft Jacob I - - 2008
Atrial fibrillation (AF) is a common cause of ischemic stroke. Because anticoagulation can prevent many of these strokes, identifying patients with occult intermittent AF is important. Hypertension is a common precursor of stroke and AF. Prolonged nonselective electrocardiographic monitoring of patients after ischemic stroke has yielded only a small number ...
Markowitz Steven M - - 2008
Ablation of atrial fibrillation (AF) has expanded from its limited application for patients with paroxysmal AF and structurally normal hearts to patients with persistent arrhythmia and more extensive structural heart disease. The cornerstone of this procedure involves pulmonary vein (PV) isolation, which is achieved by encircling lesions around the PVs. ...
Maluf Sharbel - - 2009
Hydroxyurea (HU) is an antineoplastic drug widely used in the clinical management of patients with sickle cell disease (SCD), and many questions related with its use remain unresolved. Given the severity of SCD, HU benefits, although not thoroughly confirmed, seem to outweigh its potential carcinogenicity. This study aimed to assess ...
Pappone Carlo - - 2008
BACKGROUND: Few data on atrial fibrillation (AF) progression from the first paroxysmal episode are available. OBJECTIVE: The purpose of this study was to assess the progression of AF not due to potentially reversible causes in patients treated according to current guidelines recommendations that also include catheter ablation. METHODS: Among 402 ...
Lezaic Luka - - 2008
PURPOSE: To evaluate reproducibility of diuretic renography, performed according to current guidelines in adult and pediatric patient populations. MATERIALS AND METHODS: Fifty adult and 50 pediatric renograms were processed twice by each of three observers. For differential renal function (DRF) assessment, intraclass correlation coefficient (ICC), standard deviation of DRF calculation ...
Selber Jesse - - 2008
Classic literature indicates an infrequency of metopic craniosynostosis (3 to 10 percent) compared to other single-suture craniosynostosis. Recent observation challenges these conceptions, warranting long-term demographic analysis. Syndromic craniofacial dysostoses and multiple suture involvement were exclusion criteria, leaving only single suture synostoses treated between 1975 and 2004. A chart review was ...
Censi Frederica - - 2008
BACKGROUND: The aim of this study was to compare time-domain and morphological descriptors of paced and spontaneous P wave in patients prone to atrial fibrillation (AF). METHODS: Nineteen patients (nine women, aged 72 +/- 10 years) affected by paroxysmal AF and implanted with dual-chamber pacemakers (PM) were studied. Two 5-minute ...
Fiala Martin - - 2008
BACKGROUND: Left atrial (LA) structures for the maintenance of different atrial fibrillation (AF) forms are not uniform. The incidence, electrophysiological patterns, and LA sites of sinus rhythm (SR) restoration during ablation of different AF forms were evaluated. METHODS: One hundred patients with long-lasting persistent AF were retrospectively compared to 35 ...
Pierdomenico Sante D - - 2008
OBJECTIVE: The risk of atrial fibrillation (AF) in sustained hypertensive patients with different circadian blood pressure (BP) patterns is unknown. We investigated the risk of new onset AF in dipper and nondipper sustained hypertensive patients. METHODS: The occurrence of AF was evaluated in 1141 patients aged > or = 40 ...
Leftheriotis Dionyssios I - - 2009
BACKGROUND: Although there is evidence that inflammation and oxidative stress might contribute to the pathogenesis of atrial fibrillation (AF), the predictive value of inflammatory and oxidative stress markers in patients with AF has not been fully assessed. The aim of this study is to evaluate these markers as predictors of ...
Spies Christian - - 2008
Transcatheter closure of secundum atrial septal defect (ASD) and patent foramen ovale (PFO) has become a routine procedure. Little is known about the effect of atrial septal device implantation on the occurrence of atrial fibrillation (AF). We evaluated the frequency of AF occurring after transcatheter PFO and ASD closure in ...
Sciagrà Roberto - - 2008
The impact of arrhythmias on the evaluation of perfusion data from myocardial gated SPECT has been assessed by comparing arrhythmic patients with nonarrhythmic patients or by simulating rhythm disturbances. Whether gating-related artifacts may have a clinically relevant influence on the evaluation of perfusion in atrial fibrillation (AF) patients is still ...
Koide Yasushi - - 2008
A prospective study was conducted to investigate the validity of the hypothesis that P-wave dispersion (Pd) may be a clinically useful predictor of progression from paroxysmal to persistent atrial fibrillation (AF). Two hundred four consecutive patients with a diagnosis of paroxysmal AF were studied. Standard 12-lead electrocardiography and echocardiography were ...
Attaran Robert R - - 2008
BACKGROUND: Patent foramina ovale (PFO) are small defects within the atrial septum that may play a role in paradoxical embolism, stroke and migraines. The relationship between PFO and atrial fibrillation (AF) has not been formally studied. We prospectively studied patients with a history of AF, versus those without (controls), in ...
Douen Andre G - - 2008
INTRODUCTION: Recent articles have promoted anticoagulation for potential sources of embolism detected on echocardiography, despite lack of data regarding risk/benefit ratio for anticoagulating many of these abnormalities. Conversely, we have found echocardiography use in ambulatory stroke care to be of low yield. However, direct visualization of a thrombus might be ...
Demircay Zeynep - - 2008
Flare of acne is common at the beginning of isotretinoin treatment. However, severe flare is rare. Multiple comedones, male gender and young age are reported as promoting factors. However, detailed information is still limited. Our aim was to investigate the incidence, types and course of acne flare and the predictive ...
Shimano Masayuki - - 2008
AIMS: This study investigated the potential association between homocysteine levels and cardiovascular events or atrial fibrillation (AF) recurrence following radiofrequency catheter ablation (RFCA) in patients with AF. METHODS AND RESULTS: Blood samples were obtained prior to the RFCA procedure. Levels of homocysteine and carboxy-terminal telopeptide of collagen type I (CITP), ...
Liuba Ioan - - 2008
AIMS: Elevated levels of C-reactive protein and other inflammatory markers have been reported in some patients with atrial fibrillation (AF). Whether this finding is related to AF per se or to other conditions remains unclear. In addition, the source of inflammatory markers is unknown. Therefore, in the present study, we ...
Gandolfo C - - 2008
BACKGROUND: Several studies have reported that oral anticoagulant prophylaxis (OAC) is under-used in patients with atrial fibrillation (AF). OBJECTIVE: This study investigated the attitude to prescribing OAC in patients with AF observed in an Italian Stroke Unit (SU) and the severity of ischemic stroke due to AF in comparison with ...
Stevenson Irene H - - 2008
AIMS: Recent studies have suggested an emerging link between sleep apnoea and atrial fibrillation (AF). These studies included patients with reduced left ventricular (LV) function which may cause both AF and sleep disordered breathing (SDB). We examined the prevalence of SDB in a population of patients with AF and normal ...
Ferreira António M - - 2008
AIMS: To assess the clinical benefit of cardiac resynchronization therapy (CRT) in patients with atrial fibrillation (AF) compared with patients in sinus rhythm (SR), and to evaluate the impact of atrioventricular junction (AVJ) ablation on the outcome of AF patients undergoing CRT. METHODS AND RESULTS: We conducted a retrospective analysis ...
Adams James - - 2008
INTRODUCTION: Pulmonary veins in patients with atrial fibrillation (AF) have been shown to be highly arrhythmogenic. Calcification in these veins may play an adjunctive role in the pathogenesis of AF. METHODS AND RESULTS: A case control study was performed in patients with drug refractory nonvalvular AF whose preablation computed tomography ...
Rusinaru Dan - - 2008
The prognostic importance of atrial fibrillation (AF) in heart failure (HF) is not clearly established. Studies conducted in systolic HF have led to discordant results. To evaluate the relation between AF and long-term survival in patients with heart failure and preserved ejection fraction (HFPEF). We prospectively included 368 consecutive patients ...
Katritsis Demosthenes - - 2008
There is evidence that parasympathetic denervation may prevent atrial fibrillation (AF) recurrences. This study aimed at applying an anatomic approach for ablation of atrial ganglionic plexi (GPs) in patients with paroxysmal AF. Nineteen patients with symptomatic, paroxysmal AF underwent anatomically guided radiofrequency ablation at the location of the 4 main ...
Tolosana Jose Maria - - 2008
The efficacy of cardiac resynchronization therapy (CRT) in patients with atrial fibrillation (AF) and the need for atrioventricular junction ablation in these patients is controversial. The aim of the study was to analyze CRT results in patients with permanent AF. A total of 470 consecutive patients who underwent CRT in ...
Yildiz Ahmet - - 2008
BACKGROUND: Atrial fibrillation (AF) is a very common cardiac arrhythmia, and is associated with an increased mortality in patients with hypertension. Whether the best therapeutic approach for these patients is to restore sinus rhythm (SR) or to adequately control the ventricular rate is still controversial. The aim of this study ...
Schneider Carsten - - 2008
AIMS: The aim of the study was to investigate the atrial myocardial deformation properties using ultrasound strain rate (SR) imaging in patients after catheter ablation of atrial fibrillation (AF) and to compare its prognostic value in maintaining sinus rhythm. METHODS AND RESULTS: A total of 118 patients with AF (74 ...
Yavuz Haluk - - 2008
In a retrospective study, we investigated and compared the angulation and the length of the styloid process between patients operated for Eagle's syndrome and a control group by means of lateral skull and Towne's radiographs. Thirty patients with 51 symptomatic elongated styloid processes underwent surgery. As a control group, patients ...
Rodrigues Margarida - - 2008
PURPOSE: Somatostatin receptor scintigraphy (SRS) and chromogranin A (CgA) assay have successfully been implemented in the clinical work-up and management of neuroendocrine tumour (NET) patients. However, there is still a lack of studies comparing results in these patients. Our aim was to compare directly in NET patients SRS and CgA ...
Hertervig Eva - - 2008
BACKGROUND: Pulmonary vein (PV) potentials are invariably recordable at the PV ostia in patients with atrial fibrillation (AF) and delayed conduction around the PV ostia may play a role in the initiation and maintenance of AF. AIMS: To investigate the presence and extent of PV potentials in patients with and ...
Meiltz Alexandre - - 2008
AIMS: The purpose of this prospective study was to characterize the clinical profile of patients with atrial fibrillation (AF) in cardiology practice and to assess how successfully guidelines have been implemented in real-world practice. METHODS AND RESULTS: This prospective study involved 23 cardiologists established in office practice in Geneva. Enrollment ...
Oral Hakan - - 2008
BACKGROUND: With electrogram-guided radiofrequency ablation (RFA) of long-lasting persistent atrial fibrillation (AF), the best results have been reported when complex fractionated electrograms (CFAEs) in both the left (LA) and right (RA) atria were targeted. However, many studies have reported excellent outcomes from RFA of long-lasting persistent AF with the use ...
Lutomsky Boris A - - 2008
AIMS: Beneficial effects of atrial fibrillation (AF) ablation have been demonstrated in patients with congestive heart failure (CHF) and significantly impaired left ventricular ejection fraction (LVEF). However, the impact of pulmonary vein isolation (PVI) on cardiac function in patients with paroxysmal AF and impaired LVEF remains under discussion. This study ...
Zhao Qingyan - - 2008
BACKGROUND: Studies have shown that autonomic tone plays an important role in the pathogenesis of atrial fibrillation (AF) and remodelling of I(K, ACh) in chronic AF serves as a compensatory mechanism for the AF. The relation between atrial size and AF has been established. We investigated the remodelling of muscarinic ...
Maia Carlos Renato Moreira - - 2008
OBJECTIVE: To assess ADHD symptoms after switching from Methylphenidate Immediate-release (MPH-IR) to Methylphenidate Spheroidal Oral Drug Absorption System (MPH-SODAS) in clinically stable patients with ADHD and to identify predictors of dissatisfaction with MPH-SODAS. METHODS: This is an 8-week open clinical trial. Patients were assigned to MPH-SODAS according to their pre-study ...
Blazejova Katerina - - 2008
Narcolepsy is characterized, beside other features, by excessive daytime sleepiness and disturbed sleep at night. The pineal hormone melatonin may affect the sleep characteristics. The aim of the study was to compare the circadian rhythm in salivary melatonin in narcoleptic patients with that in control healthy subjects; 18 patients and ...
Lin Yenn-Jiang - - 2008
BACKGROUND: Regions of rapid and multiple deflections can be identified with high dominant frequency (DF) during sinus rhythm (SR). These areas may play a role in the perpetuation of atrial fibrillation (AF) and indicate an atrial substrate abnormality. OBJECTIVE: The purpose of this study was to investigate the atrial substrate ...
Kusano Kengo F - - 2008
The goal of our work was to examine the relationships of atrial fibrillation (AF) with genetic, clinical, and electrophysiological backgrounds in Brugada syndrome (BrS). Atrial fibrillation is often observed in patients with BrS and indicates that electrical abnormality might exist in the atrium as well as in the ventricle. SCN5A, ...
Freestone Bethan - - 2008
BACKGROUND: Endothelial dysfunction is present in patients with heart failure (HF) due to left ventricular systolic dysfunction, as well as in patients with atrial fibrillation (AF) who have normal cardiac function. It is unknown whether AF influences the degree of endothelial dysfunction in patients with systolic HF. METHODS: We measured ...
Nieuwlaat Robby - - 2008
AIMS: To assess the relation between the atrial fibrillation (AF) subtype and thrombo-embolic events. METHODS AND RESULTS: The observational Euro Heart Survey on AF (2003-04) enrolled 1509 paroxysmal, 1109 persistent, and 1515 permanent AF patients, according to the 2001 American College of Cardiology, American Heart Association, and the European Society ...
Puglisi Andrea A Institute of Cardiology, Fatebenefratelli Hospital, Rome, Italy. - - 2008
Atrial fibrillation (AF) induces loss of atrial contribution, heart rate irregularity, and fast ventricular rate. The objectives of the study were to accurately measure AF incidence and to investigate the mutual temporal patterns of AF and heart failure (HF) in patients indicated to cardiac resynchronization therapy. Four hundred ten consecutive ...
Hsu Nei-Wei - - 2008
AIMS: Fibrillatory waves observed in the surface electrograms may be a direct reflection of the electrophysiologic mechanism of the atrial fibrillation (AF). This study compared the fibrillatory waves in the surface ECG and the individual intracardiac mapping sites in different types of paroxysmal AF. METHODS AND RESULTS: Thirty patients with ...
Moses Robert G - - 2008
BACKGROUND: For patients with type 2 diabetes, the American Diabetes Association (ADA) and European Association for the Study of Diabetes (EASD) currently recommend a glycosylated hemoglobin (HbA(1c) ) target of <7%, and the British Medical Association (BMA) Quality and Outcomes Framework recommends an HbA(1c) target of >or=7.5%. OBJECTIVE: This letter ...
Nemirovsky Dmitry - - 2008
BACKGROUND: The autonomic nervous system is thought to be involved in the initiation of atrial fibrillation (AF). However, there is a distinct entity of vagal AF characterized by episodes occurring at rest, postprandially, or during sleep. The purpose of this study was to compare intraatrial conduction in patients with vagally ...
Sarkar Shantanu - - 2008
Continuous long-term monitoring of atrial fibrillation (AF) and tachycardia (AT) is an unmet clinical need, which could be met with a chronically-implanted monitor. Improved therapeutic decisions based on accurate monitoring of parameters, such as daily AF/AT burden (hours/ day) may lead to improvements in clinical outcomes such as reduction in ...
Marcus Gregory M - - 2008
Atrial fibrillation (AF) may be due to an inherited trait, particularly in lone AF patients. A family history of AF in lone AF patients has not previously been compared with a family history of patients with AF and established risk factors (non-lone AF). The purpose of this study was to ...
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