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Class III antiarrhythmic drugs are potassium channel blockers that cause QT prolongation and are associated with TdP. Amiodarone. Amiodarone works in many ways. It blocks sodium, potassium, and calcium channels, as well as alpha and beta adrenergic receptors. Because of its multiple actions, amiodarone causes QT prolongation but TdP is rarely ...
Strokes or heart attacks cause more than 80% of cardiovascular disease deaths. ... An arrhythmia is an irregular heartbeat that occurs due to a problem with the electrical activity of your heart ...
The following are medications commonly prescribed cardiac pharmaceutical agents. The specificity of the following medications is highly variable, and often are not particularly specific to a given class. As such, they are listed as are commonly accepted.
Pacemakers are often used for slow heart rates. [6] Those with an irregular heartbeat are often treated with blood thinners to reduce the risk of complications. [6] Those who have severe symptoms from an arrhythmia or are medically unstable may receive urgent treatment with a controlled electric shock in the form of cardioversion or ...
Don't panic, symptoms can be caused by stress, and most people who do have abnormal heart rhythms are able to live normal lives, but here's what to be aware of. Irregular heartbeat types, symptoms ...
It is also considered in patients with atrial fibrillation - a heart rhythm disorder characterised by irregular electrical impulses in the atria (the upper chambers of the heart). [88] This abnormal electrical activity causes the atria to contract erratically, resulting in an irregular heartbeat. [89]
The system, PulseSelect Pulsed Field Ablation (PFA), is used for the treatment of atrial fibrillation (AF), a condition that is characterized by an irregular rhythm of the heart. PFA is used for ...
AF is usually accompanied by symptoms related to a rapid heart rate. Rapid and irregular heart rates may be perceived as the sensation of the heart beating too fast, irregularly, or skipping beats (palpitations) or exercise intolerance and occasionally may produce anginal chest pain (if the high heart rate causes the heart's demand for oxygen ...