![]() You’ll wear a portable ECG for a couple of days. This test uses sound waves to create images of the heart. This test records the electrical activity of your heart at rest. Tests to diagnose the cause of an abnormal heart rhythm include: ![]() Your electrocardiologist will ask about your medical history, family history, and symptoms. Understanding the underlying cause of a heart arrhythmia involves undergoing one or more tests. Irregular heartbeats can also occur during pregnancy, or as a side effect of a medication, which your electrocardiologist can determine. Some heart arrhythmias and heart rhythm disorders aren’t caused by an underlying medical problem. Symptoms include heart palpitations, breathing difficulty, lightheadedness, and chest pain. Wolff-Parkinson-White syndrome is a rare congenital heart disorder where extra electrical pathways in your heart trigger an abnormal heartbeat. With this condition, an abnormality in the electrical system of your heart means it takes longer for your heart muscles to recharge between beats. This refers to a fast, chaotic heart rate that can cause fainting, seizures, and sudden death. This can occur in people with or without heart disease. This is when the heart unexpectedly stops beating due to a change in heart rhythm. If left untreated, an extremely fast heart rate could cause heart failure, stroke, or cardiac arrest. This prevents blood from properly pumping to the body. Ventricular fibrillation is another type of tachycardia, which is rapid fluttering of the heart muscles. Supraventricular tachycardia originates in the top chambers of the heart, whereas ventricular tachycardia originates in the lower chambers of the heart. This is when the heart beats too fast, at a resting heart rate of more than 100 bpm. This is when the heart beats too slowly, fewer than 60 beats per minutes (bpm). This condition can also weaken the heart and lead to heart failure. If left untreated, there’s the risk of blood clots and stroke. This is a common cause of an irregular heartbeat, according to the American Heart Association. Atrial fibrillationĪlso known as AFib, this is when the upper chambers in the heart beat out of coordination with the lower chambers. An electrocardiologist can determine what type of arrhythmia you have, and then recommend a treatment based on the diagnosis.Ĭommon causes of an irregular heartbeat include: 1. Some heart arrhythmias don’t cause symptoms, so it’s possible to have one and not realize it until a routine physical examination. An abnormal heart rhythm, also known as an arrhythmia, occurs when there’s a problem with the electrical impulses that coordinate heartbeats.
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