arrhythmias…

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heart, section, the middle, heart, atrioventricular block, ekg tracing, normal heart rhythm, bradycardia, ventricular tachycardia, conduction system, the heart, dysrhythmias, abnormal heart rhythms, an arrhythmia is any disorder of heart rate, rhythm, arrhythmias, a disruption, the normal electrical conduction system, the heart, 4 chambers, the heart, 2 atria, 2 ventricles, contract, very specific, coordinated manner, heart beats faster than normal, tachycardia, bradycardia, slower-than-normal rhythm, electrical impulse that signals the heart to contract, synchronized manner begins, in the sinoatrial node, sa node, body's natural pacemaker, signal leaves the sa node, travels, the 2 upper chambers, atria, stimulating them to contract, signal passes, another node, av node, the lower chambers, ventricles, stimulating them to contract in synchrony, occur anywhere, along this conduction system, causing various arrhythmias, a problem, in the heart muscle, causing it to respond differently, signal, causing the ventricles to contract independently, the normal conduction system, tachycardia that originates, in the atria, supraventricular tachycardia, ventricular tachycardia, it originates, in the ventricles, most common supraventricular tachycardias, atrial fibrillation, atrial flutter, atrioventricular nodal reentry tachycardia, bradycardia is due either to altered pacemaker function, the sa node, an interrupted impulse conduction, the natural electrical pathways, the heart, incidence of tachycardia, bradycardia, depending on the condition, the heart, history of prior heart attack, blood chemistry imbalance, endocrine abnormalities, arrhythmias, drugs, beta blockers, psychotropics, sympathomimetics, caffeine, amphetamines, cocaine, antiarrhythmic medications, prescribed to treat one type of arrhythmia, cause another type of arrhythmia, types of arrythmias life-threatening, not promptly, adequately treated, fast, slow heart beat, palpitations, skipping beats, fainting, light-headedness, dizziness, chest pain, shortness of breath, in the rate, rhythm, pattern, the pulse, paleness, sweating, not have symptoms, first symptom sudden cardiac arrest, loss of heartbeat, cpr, a doctor, listen to heart, a stethoscope, feel pulse, blood pressure low, tests that reveal arrhythmias, identify the type of arrhythmia, ecg, ambulatory cardiac monitoring, a holter monitor, loop recorders that worn, 2 weeks, longer, echocardiogram, electrophysiology study, eps, coronary angiography, various tests, appropriate to confirm, rule out suspected causes, the arrhythmia, eps testing performed to locate the origin, the arrhythmia, determine the best treatment, a pacemaker implantation, catheter ablation procedure, an arrhythmia is serious, not well-tolerated, urgent intervention required, restore normal rhythm, electrical "shock", defibrillation, cardioversion, implantation of a temporary pacemaker to interrupt the arrhythmia, antiarrythmic drugs used, most supraventricular arrythmias, cured, radiofrequency ablation, eliminating the need, lifelong drug therapy, increasingly, most ventricular tachycardias, an implantable cardioverter-defibrillator, icd, arrhythmia begins, icd detects it, sends either an automatic electrical shock to terminate it, a burst of pacing activity to overdrive it, symptomatic bradycardias, heart blocks, the implantation of a pacemaker, outcome is dependent on several factors, kind of arrhythmia, whether it is supraventricular tachycardia, a more dangerous arrhythmia ventricular tachycardia, ventricular fibrillation, potentially fatal, overall pumping ability, the heart, underlying disease, its treatability, bradycardias, a permanent pacemaker, good outcome, angina, chest pain, imbalance of supply, demand, oxygen, in the heart muscle, heart attack, heart failure, stroke, sudden death, develop symptoms indicating a possible arrhythmia, an arrhythmia has been diagnosed, symptoms worsen, not improve, using methods of preventing coronary artery disease, in turn decrease the likelihood of developing an arrhythmia, methods include not smoking, eating a well-balanced, low-fat diet, exercising regularly.