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Does a Pacemaker help Atrial Fibrillation?
Does a Pacemaker help Atrial Fibrillation?

... maximal doses, then an AV nodal ablation may be needed. The AV node is an area of tissue than conducts the heart beat from the atria to the ventricles. During this procedure, a catheter is used to burn and damage the tissue of the AV node so the heart is not able to race anymore in the bottom chambe ...
ASD-Atrial Septal Defect
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... Your health care team may have given you this information as part of your care. If so, please use it and call if you have any questions. If this information was not given to you as part of your care, please check with your doctor. This is not medical advice. This is not to be used for diagnosis or t ...
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... spontaneous depolarization of the myocytes that occurs more quickly  than normal. b. Reentry occurs when an electrical impulse goes back into a conduction pathway rather than moving from one end of the heart to the other and then terminating. c Triggered beats occur with problems at ...
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... • CIHR funding for 5 years • Primary hypothesis: • Catheter ablation-based atrial fibrillation rhythm control as compared with rate control in patients with heart failure of either impaired LV function (LVEF ≤ 45%) or preserved LV function (LVEF > 45%) will reduce all cause mortality or heart failur ...
Neurogenic atrial fibrillation
Neurogenic atrial fibrillation

... years. It hardly ever occurs in a structurally diseased heart, probably because any cardiac disease tends to shift the vagosympathetic balance towards a sympathetic predominance.3 The usual history is of weekly episodes. The heart rate is relatively slow during the episodes of AF and most patients c ...
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Atrial Fibrillation

... Watchman • Granted FDA approvalThe WATCHMAN Device is indicated to reduce the risk of thromboembolism from the left atrial appendage in patients with non-valvular atrial fibrillation who: – Are at increased risk for stroke and systemic embolism based on CHADS2 or CHA2DS2-VASc scores and are recomme ...
Understanding Advances in Clinical Electrophysiology: Updates in
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... • Warfarin is the anticoagulant of choice in patients with AF. ASA and the combination of ASA with clopidogrel are not as effective. • Dabigatran is a direct thrombin inhibitor that has been recently approved by the FDA for the prevention of CVA and systemic thromboembolism in patients with AF. In a ...
The Pacemaker
The Pacemaker

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... with mitral and other surgical interventions. The place of AF surgery as a stand-alone procedure remains to be determined. Methods: Between 2004 and 2011 authors performed surgical ablation of lone AF in 15 patients. Patients were 57±8 years. 5 patients had permanent and 4 persistent atrial fibrilla ...
AFA Australia Atrial Flutter FACT sheet
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... Atrial Flutter is a disturbance of the heart rhythm (arrhythmia) where the upper chambers of the heart (atria) beat very rapidly. The atria are responsible for the control of the heart rate, so this usually results in your pulse becoming fast and often regular. A person may not feel any symptoms whe ...
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Atrial fibrillation



Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm characterized by rapid and irregular beating. Often it starts as brief periods of abnormal beating which become longer and possibly constant over time. Most episodes have no symptoms. Occasionally there may be heart palpitations, fainting, shortness of breath, or chest pain. The disease increases the risk of heart failure, dementia, and stroke.Hypertension and valvular heart disease are the most common alterable risk factors for AF. Other heart-related risk factors include heart failure, coronary artery disease, cardiomyopathy, and congenital heart disease. In the developing world valvular heart disease often occurs as a result of rheumatic fever. Lung-related risk factors include COPD, obesity, and sleep apnea. Other factors include excess alcohol intake, diabetes mellitus, and thyrotoxicosis. However, half of cases are not associated with one of these risks. A diagnosis is made by feeling the pulse and may be confirmed using an electrocardiogram (ECG). The typical ECG shows no P waves and an irregular ventricular rate.AF is often treated with medications to slow the heart rate to a near normal range (known as rate control) or to convert the rhythm to normal sinus rhythm (known as rhythm control). Electrical cardioversion can also be used to convert AF to a normal sinus rhythm and is often used emergently if the person is unstable. Ablation may prevent recurrence in some people. Depending on the risk of stroke either aspirin or anti-clotting medications such as warfarin or a novel oral anticoagulant may be recommended. While these medications reduce this risk, they increase rates of major bleeding.Atrial fibrillation is the most common serious abnormal heart rhythm. In Europe and North America, as of 2014, it affects about 2% to 3% of the population. This is an increase from 0.4 to 1% of the population around 2005. In the developing world about 0.6% of males and 0.4% of females are affected. The percentage of people with AF increases with age with 0.14% under 50 years old, 4% between 60 and 70 years old, and 14% over 80 years old being affected. A-fib and atrial flutter resulted in 112,000 deaths in 2013, up from 29,000 in 1990. The first known report of an irregular pulse was by John Baptist Senac in 1749. This was first documented by ECG in 1909 by Thomas Lewis.
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