Fatigue and poor exercise tolerance are common symptoms of many arrhythmias. Some patients can be desensitized to abnormal heart rhythms. If your heart rate is too fast, it can feel like your heart is racing or pounding in the chest. It depends on the arrhythmia: If your heart rate is too slow, you can feel tired, dizzy or even faint. There are many different causes, so that's why it’s important to get an accurate diagnosis by seeing a heart rhythm specialist. They can be worsened by lifestyle choices - things like smoking, excessive alcohol consumption, recreational drug use, obesity or stress. Arrhythmias are also associated with the natural aging of the heart and its electrical system. What causes arrhythmias?Īrrhythmias can be caused by pre-existing conditions like coronary artery disease, diabetes, sleep apnea, heart failure or high blood pressure. AFib also can promote the development of, or exacerbate, congestive heart failure. AFib can make the heart prone to blood clots because its organized contractions have gone astray, increasing the risk for stroke. Atrial fibrillation (AFib), the most common abnormal heart rhythm disturbance across the globe, is characterized by fast, irregular heartbeats that start in the upper heart chambers. These type of arrhythmias include paroxysmal supraventricular tachycardia (PSVT), atrial flutter and ventricular tachycardia. Occasionally, the heart’s electrical signals get caught in a little short-circuit loop. Sometimes, it's just a single skipped beat, but arrhythmias can last minutes, hours, days and possibly years. Heart arrhythmias are caused by electrical problems. Remember that a heart arrhythmia is different from a heart attack. Heart arrhythmias occur when the heart beats too quickly, too slowly or irregularly. In particular, we specialize in catheter ablation, which offers the possibility to cure common heart conditions. At the University of Chicago Medicine Center for Arrhythmia Care, our team concentrates on advanced therapies for complex arrhythmias, namely atrial fibrillation and ventricular tachycardia.
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