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Atrial fibrillatio

Li-Qun Zhao, Shao-Wen Liu
Many clinical studies indicate that atrial fibrillation is closely related to hypertension. Atrial fibrillation is not only associated with the level of blood pressure (BP) but also with the circadian rhythms of BP. However, the underlying mechanisms of atrial fibrillation in essential hypertension patients remain largely unknown. Hypertension may facilitate the onset and persistence of atrial fibrillation by stretch-induced changes in the repolarization of atrial myocytes (triggers of atrial fibrillation) and atrial remodeling (structural and electrical remodeling)...
February 2014: Journal of Cardiovascular Medicine
Roberto A Franken, Ronaldo F Rosa, Silvio Cm Santos
This review discusses atrial fibrillation according to the guidelines of Brazilian Society of Cardiac Arrhythmias and the Brazilian Cardiogeriatrics Guidelines. We stress the thromboembolic burden of atrial fibrillation and discuss how to prevent it as well as the best way to conduct cases of atrial fibrillatios in the elderly, reverting the arrhythmia to sinus rhythm, or the option of heart rate control. The new methods to treat atrial fibrillation, such as radiofrequency ablation, new oral direct thrombin inhibitors and Xa factor inhibitors, as well as new antiarrhythmic drugs, are depicted...
June 2012: Journal of Geriatric Cardiology: JGC
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