Nitroglycerin (NTG)

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Nitroglycerin (NTG) Nitroglycerin is used medically as a vasodilator to treat heart conditions, such as angina and heart failure. It is one of the oldest and most useful drugs for treating heart disease by shortening or even preventing attacks of angina. Nitroglycerin comes in forms of tablets, sprays or patches. Blood returning from the body in the veins must be …

Dabigatran

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Dabigatran (Pradaxa) is an oral blood-thinner, used to reduce the risk of stroke and blood clots in people with atrial fibrillation and and is comparable with warfarin (Coumadin). Like coumadin, dabitagran has a risk for bleeding if too much is taken as well, but patients don’t have to have their blood checked regularly, or adjust their dosage. Thus, it appears …

Recovery Arrhythmia

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Submitted by Dr T on September 8, 2011 – 12:16pm in Your heart rhythm Question:  i am a healthy person with my heart function normal proved by Stress ECG and Echo, yet sometime after moderate exercise i develop some arrhythmia and irregular beats. I was diagnosed with harmless PVCs and i used to have them at rest. My doctor told …

More on exercise PVCs

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Submitted by Dr T on September 8, 2011 – 12:05pm in Your heart rhythm Question:  1- Are PVCs that happen after activities or exercise in a normal heart function still harmless and not a cause of worry or carry a risk?2- During any arrhythmia onset (like A-fib or V-tach) what causes the syptoms assoiated like feeling dizzy, lightheaded or short …

Ventricular fibrillation (VF)

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Ventricular fibrillation (VF) Ventricular fibrillation (VF) is an uncontrolled twitching or quivering of the muscle fibers of the lower chambers of your heart. During ventricular fibrillation, blood is no longer pumped out of your heart. The most common cause of VF is a heart attack. However, VF can also occur whenever the heart does not get enough oxygen or with …

Bigemini

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A Premature Ventricular contraction (PVC) begins in the ventricle instead of the usual place, the sinus node in the Atrium. They are very common, and are sometimes perceived as a palpitation. They often occur without the patient being aware of it at all. Bigeminy is the occurrence of a PVC every other beat. The main point with this type of …

Long QT syndrome (LQTS)

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Long QT syndrome (LQTS) Long QT syndrome (LQTS) is a disorder of the heart’s electrical activity. It may cause you to develop a sudden, uncontrollable, and dangerous heart rhythm called an arrhythmia in response to exercise or stress. Arrhythmias also can develop for no known reason in people who have LQTS. Not everyone who has LQTS develops dangerous heart rhythms. …

Cardiac Tamponade

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Cardiac tamponade is caused by the accumulation of fluid in the pericardial space. Because the pericardium cannot stretch if this occurs quickly, pressure rises in this space. If the pressure is higher than in the various chambers of your heart, they get compressed and some of the blood returning from your body gets backed up. This results in acute failure …

Supraventricular Tachycardia (SVT)

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Supraventricular Tachycardia (SVT) What is a supraventricular tachycardia? Simply stated, an SVT is an arrhythmia that originates from above (“supra”) the ventricle. This term encompasses a large number of arrhythmias and therefore the term “SVT” is only a general description, not a specific diagnosis. Most commonly, however, it refers to one of 3 commons types of arrhythmias, AV Nodal Reentrant …