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Hardin Sonya R - - 2008
Atrial fibrillation is the most common arrhythmia among older adults. Valvular heart disease, dilated cardiomyopathy, aortic stenosis, hypertension, coronary artery disease, pericarditis, thyrotoxicosis, pulmonary disease, cardiac surgery, alcohol excess, and alcohol withdrawal are associated with atrial fibrillation. Nurses caring for older adults need to understand the condition's pathophysiology, signs and ...
Tickoo Sumit - - 2008
Most hospitals have reduced medical staff on weekends. Furthermore, a recent study on acute myocardial infarction suggested that weekend admissions were associated with higher mortality compared with weekday admissions. We sought to determine if compliance with guideline recommendations for acute coronary syndrome performance measures would be worse on weekends/holidays compared ...
Roy Denis - - 2008
BACKGROUND: It is common practice to restore and maintain sinus rhythm in patients with atrial fibrillation and heart failure. This approach is based in part on data indicating that atrial fibrillation is a predictor of death in patients with heart failure and suggesting that the suppression of atrial fibrillation may ...
Lombardi Federico - - 2008
OBJECTIVES: Maintenance of sinus rhythm after cardioversion of atrial fibrillation is a major clinical challenge also in patients with preserved left ventricular function. Subclinical inflammation and atrial strain have been recognized as important contributors to atrial fibrillation onset and perpetuation. Aim of the study was to compare the predictive role ...
Kim Robert J - - 2008
We report the case of a young man who presented with a rapid, narrow-complex atrial fibrillation. A few hours after being administered intravenous metoprolol and diltiazem for rate control, he developed intermittent ventricular preexcitation on the electrocardiogram (ECG) and experienced ventricular fibrillation, from which he was successfully defibrillated. A subsequent ...
Ravn Lasse S - - 2008
OBJECTIVES: The renin-angiotensin system may play a role in the pathogenesis of atrial fibrillation, and renin-angiotensin system blockers reduce the risk of atrial fibrillation. We hypothesized that polymorphisms in the angiotensinogen and angiotensin-converting enzyme (ACE) genes encoding proteins in this system predict risk of atrial fibrillation. METHODS AND RESULTS: We ...
Skalidis Emmanuel I - - 2008
OBJECTIVES: The purpose of this study was to assess atrial myocardial perfusion in patients with lone recurrent atrial fibrillation (LRAF). BACKGROUND: Although acute atrial ischemia has been implicated in the pathogenesis of atrial fibrillation, there are few data concerning human atrial myocardial perfusion and none for patients with LRAF. METHODS: ...
Grubitzsch Herko - - 2008
OBJECTIVE: Treatment of atrial fibrillation, a risk factor for morbidity and mortality, by left atrial ablation is a less complex procedure which is increasingly performed in conjunction with surgery for various heart diseases. Although restoration of sinus rhythm is effective initially, atrial fibrillation may recur. We investigated factors predicting the ...
Baranchuk Adrian - - 2008
A 67-year-old woman with persistent atrial fibrillation presented for elective electrical cardioversion. The patient was cardioverted to normal sinus rhythm with a synchronized 150 joules (J) biphasic shock. Varying P-wave morphology suggesting intermittent interatrial block (IAB) was noted after the cardioversion on the rhythm strip. Three minutes later the patient ...
Mai Vinh Q - - 2008
OBJECTIVE: Surgery-induced thyroiditis can pose a significant clinical problem that is underappreciated. We present a case of new-onset atrial fibrillation as a consequence of palpation thyroiditis in a 70-year-old man who underwent radical right neck dissection for malignant melanoma and review the limited literature on this topic. DESIGN: Biochemical parameters ...
Salman Salam - - 2008
The objective of this retrospective cohort study was to describe the incidence of paroxysmal atrial fibrillation and to determine its risk factors and effect on outcome in critically ill patients with sepsis. The study included 81 patients with sepsis admitted to an intensive care unit. In all, 25 patients (31%) ...
Hosokawa Yusuke - - 2008
Atrial fibrillation is commonly observed in patients with hypertrophic obstructive cardiomyopathy. Episodes of paroxysmal atrial fibrillation are often torturous and limit the quality of life by causing congestive heart failure, transient hypotension, or bradycardia. Control of paroxysmal atrial fibrillation in patients with hypertrophic obstructive cardiomyopathy is considered to be important ...
Lindquist Ruth - - 2008
A majority of people in the United States use complementary and alternative therapies, and this use is increasing. With the increasing interest, providers must evaluate potential risks and benefits of these therapies. This article describes challenges of a feasibility study of acupuncture as a potential therapeutic adjunct to prevent atrial ...
Tsuboi Junichi - - 2008
Arrhythmias following cardiovascular surgery lead to unstable hemodynamics, along with myocardial ischemia and decreased cardiac output. The purpose of the present case cohort study compared the control group with no carvedilol administered and the other group of patients given carvedilol and determined whether postoperative treatment with carvedilol, a beta-adrenergic blocker, ...
Kanj Mohamed - - 2008
Coronary Sinus Focus Acting as a Trigger for Atrial Fibrillation. We report the case of a 46-year-old man who presented for evaluation and ablation of paroxysmal atrial fibrillation, which he developed one year prior to presentation and that was refractory to antiarrhythmic drugs. His past medical and surgical history was ...
Tarkiainen Tuula H - - 2008
INTRODUCTION: We evaluated whether there are constant preoperative alterations in nonlinear R-R interval dynamics that associate with the risk of postoperative atrial fibrillation in patients with preserved left ventricular function. METHODS: We analyzed mean normal-to-normal R-R intervals, short-term scaling exponent of detrended fluctuation analysis (DFA alpha(1)), approximate entropy and entropy ...
Dobrev Dobromir - - 2008
Atrial fibrillation is the most frequent cardiac arrhythmia in clinical practice. Although much has been learned, the underlying mechanisms are incompletely understood. Clinically used antiarrhythmic drugs are limited in their efficacy to terminate atrial fibrillation or to maintain sinus rhythm and were associated with substantial toxicity including life-threatening ventricular arrhythmias. ...
Ruffin Richard T RT - - 2008
BACKGROUND: Nonsteroidal anti-inflammatory drug (NSAID) use may reduce the incidence of post-cardiothoracic surgery (CTS) atrial fibrillation (AF). The cerebrovascular and cardiovascular safety of using NSAIDs for post-CTS AF has not been determined. OBJECTIVE: To evaluate whether NSAIDs could reduce the incidence of post-CTS atrial fibrillation without increasing patients' risk of ...
Melo Joao - - 2008
OBJECTIVES: We sought to assess the clinical and survival benefit of atrial fibrillation surgery in patients submitted to mitral valve surgery after stabilization of postoperative rhythm at 1 year. METHODS: One thousand seven hundred twenty-three patients were enrolled. Patients with follow-up of longer than 1 year (n = 972) were ...
Novoa Roberto - - 2008
The belief that postoperative atrial fibrillation (PAF) results from transient autonomic dysfunction suggests that interventions such as clinical hypnosis may reduce the incidence of PAF. To explore this hypothesis, we retrospectively compared outcomes between two groups of patients undergoing coronary artery bypass graft surgery: 50 consecutive patients who received preoperative ...
Rodrigo Ramón - - 2008
Atrial fibrillation is the most common complication of cardiac surgical procedures performed with cardiopulmonary bypass. It contributes to increased hospital length of stay and treatment costs. At present, preventive strategies offer only suboptimal benefits, despite improvements in anesthesia, surgical technique, and medical therapy. The pathogenesis of postoperative atrial fibrillation is ...
Kirchhof Paulus - - 2008
The concept of mechano-electrical feedback was derived from the observation that a short stretch applied to the beating heart can invoke an electrical response in the form of an afterdepolarization or a premature ventricular beat. More recent work has identified stretch-activated channels whose specific inhibition might help to treat atrial ...
Kolettis Theofilos M - - 2008
OBJECTIVE: We investigated the relation between the endothelin system and atrial fibrillation. BACKGROUND: Endothelin has been implicated in the pathophysiology of atrial fibrillation, but the exact role of A- and B-receptors is unknown. METHODS: We obtained right atrial biopsies from patients in sinus rhythm and preserved left ventricular function, undergoing ...
Möbius-Winkler Sven - - 2008
Stroke is a leading cause of death and disability worldwide. Many strokes occur in patients with atrial fibrillation. Current guidelines recommend an antithrombotic regimen with warfarin to prevent thromboembolism in atrial fibrillation; however, a substantial number of patients are not eligible for this therapy. The exclusion of the left atrial ...
Chan A L F - - 2008
OBJECTIVE: To report a fatal case of amiodarone-induced acute hepatotoxicity after intravenous amiodarone administration and similar fatal cases review. CASE SUMMARY: A 72-year-old woman with a history of hypertension, prior cardiovascular disease, atrial fibrillation and diabetes mellitus was admitted to the hospital with acute pyelonephritis and transferred to the intensive ...
Ragini S. Bhakta
Atrial Fibrillation (AF) as defined by the American Heart Association is an irregular heart beat (rhythm) where the small upper chambers of the heart (atria) beat ineffectively. The atria cannot pump all of the blood out of the chambers, resulting in pooling of the blood or clot formation. Unfortunately, if ...
Turley A J - - 2008
Although serious adverse events following adenosine administration are rare, it should only be administered in an environment where continuous ECG monitoring and emergency resuscitation equipment are available. The case report describes the development of pre-excited atrial fibrillation in a 31-year-old woman with Wolff-Parkinson-White syndrome following the administration of adenosine. She ...
Koneru Jayanthi N - - 2008
PURPOSE OF REVIEW: Heart failure and atrial fibrillation have been called the twin modern epidemics. They are often present concomitantly and are believed to directly predispose to each other. They form a sinister synergy, and management of atrial fibrillation in the setting of heart failure is challenging; relatively new therapeutic ...
Boos Christopher J - - 2008
Atrial fibrillation is a supraventricular tachyarrhythmia, which is characterised by the presence of fast and uncoordinated atrial activation leading to reduced atrial mechanical function. Risk factors for atrial fibrillation include increasing age, coexisting cardiac and thyroid disease, pyrexial illness, electrolyte imbalance, cancer, and coexisting infection. METHODS AND OUTCOMES: We conducted ...
Mandava Anisha - - 2008
PURPOSE OF REVIEW: Pacemakers currently being implanted offer several advanced diagnostic features. Among these is the ability to store counters and intracardiac electrograms of individual atrial high-rate episodes, which are a surrogate of atrial fibrillation. As the majority of these episodes are brief and asymptomatic, their clinical significance remains to ...
Sovari Ali A - - 2008
Oxidative stress in atrial tissue may be causally related to atrial fibrillation as suggested by clinical and animal studies. Reactive oxygen species (ROS) are known to play a key role in fibrosis and the induction of after-depolarization and triggered activity. Therefore, suppressing oxidative stress may have a potential beneficial role ...
Lip Gregory Y H - - 2008
Risk factors for acute atrial fibrillation include increasing age, cardiovascular disease, alcohol, diabetes, and lung disease. Acute atrial fibrillation increases the risk of stroke and heart failure. Acute atrial fibrillation resolves spontaneously within 24-48 hours in over 50% of people, however many people will require interventions to control heart rate ...
Cho Hyun-Ji - - 2008
BACKGROUND: The human nucleus prepositus hypoglossi (NPH), which is known to be a neural integrator of horizontal eye movement, may also serve vestibular function. The present study investigated the clinical spectrum and etiological mechanism of isolated, small infarctions involving the NPH area demonstrated on MRI. METHODS: The subjects of this ...
Callahan Thomas D TD - - 2008
Atrial fibrillation is a common arrhythmia associated with significant morbidity including angina, heart failure and stroke. Medical therapy remains suboptimal with significant side effects and toxicities, as well as a high recurrence rate. Catheter ablation or modification of the atrio-ventricular node with pacemaker implantation provides rate control but subjects the ...
Morguet Andreas J - - 2008
NYHA class III and IV chronic heart failure has been established as a potential indication for telemedical care and monitoring already. We conducted a prospective study to assess the utilization of telemedical services by cardiac patients in order to identify further indications. A total of 540 patients (mean age 59 ...
Patel Dimpi - - 2008
To review: 1) Pathophysiology of postoperative atrial fibrillation (POAF); 2) Risk factors for POAF; 3) Prophylaxis of POAF; 4) Treatment of POAF; and 5) Future directions. We searched the Medline database for articles published between January, 1966 to September, 2008. We used the following keywords: Atrial fibrillation, Postoperative atrial fibrillation, ...
Grundvold Irene - - 2008
The recurrence rate of atrial fibrillation after electrical cardioversion is disappointingly high. The aim of the present study was to prospectively investigate if standard echocardiographic variables at the day of cardioversion could predict sinus rhythm maintenance. Transthoracic echocardiographic examination was performed within 4 h after cardioversion for all the patients ...
Buyukkaya Sule - - 2008
Using tissue Doppler echocardiography, we evaluated left ventricular long-axis function in 65 mitral stenosis patients, 30 of whom were in sinus rhythm and 35 of whom were in chronic atrial fibrillation. There were 35 healthy control subjects. Conventional echocardiography was used to evaluate left ventricular diameters, left atrial diameters, left ...
Iino Kenji - - 2007
OBJECTIVE: Postoperative atrial fibrillation is one of the most frequent complications of cardiac surgery. We developed a novel biodegradable gel pad consisting of biopolymers that directly attach to the myocardium by electrostatic interaction. The present study examines the feasibility and effectiveness of low-energy internal cardioversion using these pads. METHODS: The ...
Kinoshita Shinji - - 2007
A Holter recording was taken from a 62-year-old man, in whom paroxysmal atrial fibrillation was often initiated by late coupled extrasystoles rather than by close coupled ones. Coupling intervals of the extrasystoles to the preceding sinus P waves were considerably variable. When the coupling interval of an extrasystole was shorter ...
Chen Mien-Cheng - - 2008
Valvular heart disease has become an important public health concern. The increased wall stress and underlying disease entity associated with mitral valve disease provide unfavorable circumstances for atrial cardiomyocytes. The expression of the alpha-smooth muscle actin isoform is considered characteristic of cardiomyocyte dedifferentiation (embryonic cardiomyocyte), and cardiomyocyte dedifferentiation may indicate ...
Mainzer G - - 2008
Atrial fibrillation is rare in childhood that had not been reported in neonates with normal cardiac morphology and function. The authors present a newborn who underwent surgical repair of a tracheoesophageal fistula with esophageal atresia at the age of 2 days and experienced atrial fibrillation 16 days after the procedure. ...
Romero-Corral Abel - - 2007
BACKGROUND: Obstructive sleep apnea (OSA) may predispose patients to congestive heart failure (CHF), suggesting a deleterious effect of OSA on myocardial contractility. METHODS: A cross-sectional study of 85 subjects with suspected OSA who had undergone their first overnight polysomnogram, accompanied by an echocardiographic study. Patients were divided according to the ...
Ramlawi Basel - - 2007
BACKGROUND: New-onset postoperative atrial fibrillation (PAF) continues to be among the most common complications after cardiac surgery, leading to significant morbidity and cost. We studied the role of oxidative stress on patients after cardiopulmonary bypass. METHODS: Patients undergoing coronary artery bypass grafting or valve procedures who exhibited new-onset PAF (n ...
Wisser Wilfried - - 2007
BACKGROUND: The efficacy of mere pulmonary vein isolation epicardially for the treatment of permanent chronic atrial fibrillation, in comparison with the left atrial endocardial maze procedure was evaluated. METHODS: Retrospective data collection and analysis toward the outcome of 72 consecutive patients who underwent left atrial maze procedures between January 2003 ...
Liao Joy - - 2007
BACKGROUND AND PURPOSE: Identifying paroxysmal atrial fibrillation/flutter is an essential part of the etiological workup of patients with ischemic stroke. However, there is controversy in the literature regarding the use of noninvasive cardiac rhythm monitoring with previous reviews reporting a low detection rate with routine monitoring. We performed a systematic ...
Lerakis Stamatios - - 2007
Sick PB, Schuler G, Hauptmann KE et al.: Initial worldwide experience with the WATCHMAN((R)) left atrial appendage system for stroke prevention in atrial fibrillation. J. Am. Coll. Cardiol. 49(13), 1490-1495 (2007). Left atrium appendage (LAA) occlusion is a potential alternative to warfarin in patients with atrial fibrillation who have contraindications ...
Mayson Sarah E - - 2007
Atrial fibrillation is the most common postoperative arrhythmia with significant consequences on patient health. Postoperative atrial fibrillation (POAF) complicates up to 8% of all noncardiac surgeries, between 3% and 30% of noncardiac thoracic surgeries, and between 16% and 46% of cardiac surgeries. POAF has been associated with increased morbidity, mortality, ...
Chiale Pablo A - - 2007
The anterograde refractory period (RP) of the accessory pathway (AP) is the main determinant factor of ventricular rate during atrial fibrillation in the Wolff-Parkinson-White (WPW) syndrome. We describe 3 examples of anterograde supernormal conduction (SNC) and 1 of retrograde SNC in APs. The paradoxical early recovery of propagation due to ...
Lip Gregory Y H - - 2007
Atrial fibrillation is the most common sustained cardiac rhythm disorder, and confers a substantial mortality and morbidity from stroke, thromboembolism, heart failure, and impaired quality of life. With the increasingly elderly population in the developed world, as well as improvements in the management of myocardial infarction and heart failure, the ...
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