Subsequent experience has narrowed the electrophysiologist's attention to ablation of triggers of AF, most often residing in the pulmonary veins, rather than requiring more extensive ablation lines to control th
The fast heart rate associated with atrial fibrillation can weaken the heart muscle and lead to a decrease in your heart’s pumping function. Left untreated, AFib increases your risk for stroke, heart failure and other issues. What are the causes of atrial fibrillation? The causes of atrial fi...
Atrial fibrillation (AFib) is broadly defined as an irregular heartbeat, but that won’t tell the whole story. In fact, there are distinct forms of AFib, and your management plan will depend on which form you suffer from. Your prognosis could depend on that detail, too. So, what differen...
Atrial fibrillation, orAFib, is a type ofheartdisorder that can cause an abnormally high heart rate. AFib occurs due to problems with an individual’s heart’s electrical activity. It results in poor pumping of blood by the heart because of which an individual is at a risk ofblood clots,s...
MG Triggers Too much activity or stress and not enough sleep can trigger the muscle weakness of myasthenia gravis. Heat and humidity may affect you, too. How Do I Know My Myasthenia Treatment Is Working? Myasthenia gravis symptoms are different for every person. Symptoms tend to flare up then...
Atrial fibrillation can lead to scarring of the atrial tissue. The scarring is also called fibrosis. (The atria are the heart’s upper chambers.) Stretching Eventually the heart tissue becomes stretched, too. As the walls of the heart are stretched, the heart muscle becomes weaker. ...
Heart rate is controlled by the nervous system, in particular, two branches of the involuntary autonomic nervous system. They are the... sympathetic...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough...
What are the stimuli for the release of: How does stimulus intensity affect neurotransmitter release? Explain. What is the relationship between action potentials and neurotransmitter release? What is the neurotransmitter that triggers our fight or flight response? What stimuli can open or close the ...
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What stimulates ANP secretion from atrial cells of the heart? What two effects does sympathetic stimulation have on the heart during exercise? When the nerves to the heart are cut, the heart rate increases to about 100 contractions per minute. What does this increase indicate about regulation of...