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Atrial Fibrillation
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1. Mechanical esophageal deflection during ablation of atrial fibrillation.
Match Strength: 13.199

To prevent esophageal damage during ablation of atrial fibrillation, we developed a technique to move the esophagus away from a desired ablation site too close to the esophagus. Under fluoroscopy, a transesophageal echocardiography probe was used to deflect the barium-opacified esophagus from the ablation site. This technique was successfully employed in three patients where critical sites of the posterior left atrial wall were very close to the esophagus ... Read More »
» Published in Pacing Clin Electrophysiol. 2006 Sep;29(9):957-61.

2. Drug evaluation: dronedarone, a novel non-iodinated anti-arrhythmic agent.
Match Strength: 12.121

sanofi-aventis (formerly Sanofi-Synthelabo) is developing the oral class III anti-arrhythmic agent dronedarone (Multaq) for the potential treatment and prevention of atrial fibrillation. In June 2005, sanofi-aventis submitted EU and US filings for atrial fibrillation. In October 2002, phase I trials for arrhythmia were reported to be ongoing in Japan. Publication Types: ... Read More »
» Published in Curr Opin Investig Drugs. 2006 Sep;7(9):842-9.

3. Surgical treatment of chronic atrial fibrillation combined with rheumatic mitral valve disease: Effects of the cryo-maze procedure and predictors for late recurrence.
Match Strength: 10.808

OBJECTIVE: The aim of this study was to evaluate the effects of the modified maze procedure using cryoablation for treating chronic atrial fibrillation (AF) associated with rheumatic mitral valve disease and to assess the risk factors for late failure of sinus rhythm restoration. METHODS: Between March 2000 and June 2004, 170 consecutive patients, who underwent the modified maze procedure using cryoablation concomitant with mitral valve surgery for atrial fibrillation associated with rheumatic mitral valve disease, were divided into two groups based on the type of right-sided maze: the ... Read More »
» Published in Eur J Cardiothorac Surg. 2006 Nov;30(5):728-36. Epub 2006 Sep 26.

4. Evidence of mechanoelectric feedback in the atria of patients with atrioventricular nodal reentrant tachycardia.
Match Strength: 10.771

OBJECTIVE: Patients with atrioventricular nodal reentrant tachycardia (AVNRT) could serve as a clinical model to study the effects of mechanical stretch in the electrical properties of atrial myocardium. MATERIALS AND METHODS: We studied 14 patients with AVNRT. Peak, mean and minimal atrial pressures, atrial refractoriness (ERP) in the right atrial appendage and high right atrial lateral wall and monophasic action potential duration at 90% of repolarisation (MAPd90) in the right atrial appendage were assessed during atrial pacing at 500 and 400 ms and after 2 min of pacing at the tachycardia ... Read More »
» Published in J Interv Card Electrophysiol. 2006 Jun;16(1):51-7. Epub 2006 Sep 28.

5. Transoesophageal echocardiographic evaluation of pulmonary vein anatomy in patients undergoing ostial radiofrequency catheter ablation for atrial fibrillation: a comparison with magnetic resonance angiography.
Match Strength: 10.693

OBJECTIVE: A detailed definition of pulmonary vein (PV) anatomy is of great importance in patients undergoing radiofrequency catheter ablation for atrial fibrillation. In fact, it is known that variations in the number and anatomy of the PV ostia are more frequent than thought. The aim of this study was to assess the usefulness of transoesophageal echocardiography (TOE) in defining the exact PV anatomy by comparing it with magnetic resonance angiography (MRA), which is proven to be very accurate. METHODS: Forty-five consecutive patients (39 male, 6 female, mean age 50 +/- 6 years) affected by ... Read More »
» Published in J Cardiovasc Med (Hagerstown). 2006 Oct;7(10):748-752.

6. Prognostic significance of left atrial size in patients with hypertrophic cardiomyopathy (from the Italian Registry for Hypertrophic Cardiomyopathy).
Match Strength: 10.559

This study assessed left atrial (LA) dimension as a potential predictor of outcome in hypertrophic cardiomyopathy (HC). From the Italian Registry for Hypertrophic Cardiomyopathy, 1,491 patients (mean age 47 +/- 17 years; 61% men; 19% obstructive), followed for 9.4 +/- 7.4 years after the initial echocardiographic evaluation, constituted the study group. The mean LA transverse dimension was 43 +/- 9 mm and was larger in patients with severe symptoms (48 +/- 9 mm for New York Heart Association classes III and IV vs 42 +/- 9 mm for classes I and II, p <0.001), atrial fibrillation (47 +/- 9 vs ... Read More »
» Published in Am J Cardiol. 2006 Oct 1;98(7):960-5. Epub 2006 Aug 14.

7. The renin-angiotensin system: a therapeutic target in atrial fibrillation.
Match Strength: 10.427

There is growing evidence to suggest a role for the renin-angiotensin system (RAS) in the pathogenesis of atrial fibrillation (AF). Experimental animal data suggest RAS-dependent mechanisms for the development of a structural and electrophysiologic substrate for AF. This is consistent with clinical data demonstrating the effectiveness of RAS blockade in preventing new-onset or recurrent AF in a variety of patient populations including patients with hypertension and left ventricular hypertrophy, congestive heart failure, and those undergoing electrical cardioversion for AF. This review ... Read More »
» Published in Pacing Clin Electrophysiol. 2006 Sep;29(9):1006-12.

8. Efficacy and safety of right and left atrial ablations on the beating heart with irrigated bipolar radiofrequency energy: a long-term animal study.
Match Strength: 10.040

OBJECTIVE: The Cox maze procedure is the most effective surgical treatment for atrial fibrillation; however, its complexity has limited its clinical utility. The purpose of this study was to simplify the procedure by using an irrigated bipolar radiofrequency ablation device on the beating heart without cardiopulmonary bypass. METHODS: Six domestic pigs underwent median sternotomy. The pulmonary veins were circumferentially ablated. Electrical isolation was confirmed by pacing. Eight lesions were performed epicardially, and three lesions were performed through purse-string sutures with one of ... Read More »
» Published in J Thorac Cardiovasc Surg. 2006 Oct;132(4):853-60.

9. Determinants of sudden cardiac death in patients with persistent atrial fibrillation in the rate control versus electrical cardioversion (RACE) study.
Match Strength: 8.911

This report evaluated the correlates of sudden cardiac and nonsudden cardiac death in patients with persistent atrial fibrillation randomized to rate or rhythm control in the RAte Control vs Electrical cardioversion (RACE) study. Sudden cardiac death was observed in 16 patients, 8 patients in each group. Previous myocardial infarction resulted in a 4.9-fold increased risk of sudden death (95% confidence interval 1.8 to 13.2). The use of beta blockers showed their protective nature (hazard ratio 0.2, 95% confidence interval 0.05 to 0.9). The randomized treatment strategy, heart rhythm during ... Read More »
» Published in Am J Cardiol. 2006 Oct 1;98(7):929-32. Epub 2006 Aug 11.

10. Cardiac arrhythmias and conduction disturbances in autoimmune rheumatic diseases.
Match Strength: 8.372

Rhythm and conduction disturbances and sudden cardiac death (SCD) are important manifestations of cardiac involvement in autoimmune rheumatic diseases (ARDs). In patients with rheumatoid arthritis (RA), a major cause of SCD is atherosclerotic coronary artery disease, leading to acute coronary syndrome and ventricular arrhythmias. In systemic lupus erythematosus (SLE), sinus tachycardia, atrial fibrillation and atrial ectopic beats are the major cardiac arrhythmias. In some cases, sinus tachycardia may be the only manifestation of cardiac involvement. The most frequent cardiac rhythm ... Read More »
» Published in Rheumatology (Oxford). 2006 Oct;45 Suppl 4:iv39-iv42.

11. Microvascular blood flow during cardiopulmonary resuscitation is predictive of outcome.
Match Strength: 7.249

There is growing evidence that microcirculatory blood flow is the ultimate determinant of the outcome in circulatory shock states. We therefore examined changes in the microcirculation accompanying the most severe form of circulatory failure, namely cardiac arrest and the effects of subsequent cardiopulmonary resuscitation. Ventricular fibrillation was electrically induced in nine pigs and untreated for 5min prior to beginning closed chest cardiac compression and attempting electrical defibrillation. Orthogonal polarization spectral imaging was utilized for visualization of the sublingual ... Read More »
» Published in Resuscitation. 2006 Nov;71(2):248-53. Epub 2006 Sep 20.

12. A randomized controlled trial of efficacy and ST change following use of the Welch-Allyn MRL PIC biphasic waveform versus damped sine monophasic waveform for external DC cardioversion.
Match Strength: 6.217

OBJECTIVE: Biphasic waveforms have similar or greater efficacy at cardioverting atrial and ventricular arrhythmias at lower energy levels than monophasic waveforms, and cause less ST depression following defibrillation of ventricular fibrillation. No studies have investigated this effect on ST change with atrial arrhythmias. We studied the efficacy of the Welch Allyn-MRL PIC biphasic defibrillator. METHODS: One hundred and thirty-nine patients undergoing elective DC cardioversion for atrial arrhythmias were randomised to cardioversion by monophasic (Hewlett Packard Codemaster XL; 100, 200, 300 ... Read More »
» Published in Resuscitation. 2006 Nov;71(2):146-51. Epub 2006 Sep 20.

13. High dose calcitriol may reduce thrombosis in cancer patients.
Match Strength: 6.213

The incidence of venous and arterial thrombosis in a placebo-controlled randomised trial of DN-101 (high dose calcitriol) with docetaxel versus docetaxel was compared. Of the 13 thrombotic events observed in the 250 patients enroled in this study, two occurred in DN-101 and 11 in placebo-treated patients (P = 0.01). This difference remained significant after adjustment for baseline history of thrombosis, atrial fibrillation and use of anti-thrombotic agents. In vitro and vitamin D receptor (VDR) knockout mouse studies predict that nanomolar concentrations of calcitriol may act as an ... Read More »
» Published in Br J Haematol. 2006 Nov;135(3):392-4. Epub 2006 Sep 19.

14. Thromboembolic Disease after Total Hip Arthroplasty: Who is at Risk?
Match Strength: 4.713

The strong activation of the clotting cascade that occurs during total hip arthroplasty places patients at increased risk for venous thromboembolism. The risk is higher in those patients with the following predisposing factors, listed in approximate order of importance: hip fracture; malignancy, particularly if associated with chemotherapy; antiphospholipid syndrome; immobility; history of venous thromboembolism; administration of tamoxifen; raloxifene; oral contraceptives or estrogen; morbid obesity; stroke; atherosclerosis; and an American Society of Anesthesiologists physical status ... Read More »
» Published in Clin Orthop Relat Res. 2006 Sep 21;

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* All information on is for educational purposes only. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. Before changing your diet, or adding supplements to your diet, or beginning an exercise program, everyone should consult a qualified and licensed health practitioner; a physician, dietician or similar professional.

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