Premature Contraction – early heart beat. Ventricular Fibrillation – A life-threatening condition.Atrial Fibrillation – A manageable condition, a common abnormal heart rhythm.Ventricular Tachycardias – Occurs in the lower chambers of the heart (ventricles), can be life-threatening.Sinus Tachycardia – A correctly functioning heart with a faster heart rate. Atrial or Supraventricular Tachycardias – Occurs either in the upper chambers (atria) or the middle region.Damage from a heart attack or heart disease, congenital heart disease, high blood pressure, smoking and other factors can contribute the disruption of impulses. Tachycardia is caused by a disruption of the electrical impulses conducted by the heart. Tachycardia – The heart beats too fast, above 100 bpm. Aging, hypothermia, damage from a heart attack or heart disease, and other factors can contribute to the disruption of impulses. Bradycardia is caused by a disruption of the electrical impulses conducted by the heart. For athletic individuals, a normal resting heart rate can be below 60 bpm, and not cause problems. Typesīradycardia – The heart beats too slow, below 60 bpm. If some types of abnormal heart rhythms are left untreated, they may even cause sudden cardiac death. In most cases, abnormal heart rhythms are harmless, however, some cases may cause uncomfortable symptoms like dizziness, palpitations, pounding in the chest, fainting, shortness of breath, weakness, or fatigue. As a result, less oxygen reaches other parts of the body and can cause organ damage. When electrical impulses in the heart become too fast, too slow, or irregular they cause the heart to beat irregularly.Ībnormal heart rhythms may cause the heart to pump blood inefficiently causing poor blood circulation in the body. Abnormal heart rhythms can be described as a heart beating too fast (above 100 bpm) or slow (below 60 bpm), a fluttering sensation in the chest area or the skipping of a heart beat. For athletic individuals, a normal resting heart rate may be as low as 40 to 60 bpm. For most, a normal resting heart rate is 60 to 100 beats per minute (bpm). It's important to get medical advice to make sure it's nothing serious.Each year millions of people experience abnormal heart rhythms (arrhythmias), which are common as we age. your heart rate is consistently lower than 60 or above 100 (particularly if you're experiencing other symptoms of atrial fibrillation, such as dizziness and shortness of breath).you notice a sudden change in your heartbeat.you have chest pain that goes away quickly but you're still worried.you have chest pain that comes and goes.This can lead to low blood pressure (hypotension) and heart failure. The way the heart beats in atrial fibrillation reduces the heart's performance and efficiency. tiredness and being less able to exercise.Other symptoms you may experience if you have atrial fibrillation include: You can work our your heart rate by checking your pulse in your neck or wrist. The most obvious symptom of atrial fibrillation is heart palpitations – where the heart feels like it's pounding, fluttering or beating irregularly, often for a few seconds or possibly a few minutes.Īs well as an irregular heartbeat, your heart may also beat very fast (often considerably higher than 100 beats per minute). People often attribute tiredness and feeling lethargic to ageing, but once normal rhythm is restored, they realise these symptoms were caused by atrial fibrillation. Typically, a cardioversion (where the heart is given a controlled electric shock to restore normal rhythm) is carried out.Īt this point, many people feel much better and realise they had not been feeling normal. The irregularity in heart rhythm is often only discovered during routine tests or investigations for another condition. Some people with atrial fibrillation, particularly older people, do not have any symptoms.
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