I'm a healthcare professional with experience in cardiology. When it comes to an irregular heartbeat, also known as arrhythmia, the seriousness can vary widely depending on the type, underlying cause, and the individual's overall health. Some forms of arrhythmia are harmless and don't require treatment, while others can be life-threatening and require immediate medical attention. For example, a supraventricular tachycardia (SVT) can cause a rapid heart rate but is often not serious, whereas ventricular tachycardia can lead to sudden cardiac arrest and is a medical emergency. Factors that can influence the seriousness of an irregular heartbeat include: - The specific type of arrhythmia. - How often it occurs. - The presence of underlying heart disease. - The impact on the individual's quality of life and daily activities. It's important to consult with a healthcare provider if you're experiencing an irregular heartbeat. They can perform tests such as an EKG to diagnose the type of arrhythmia and determine the appropriate course of action. read more >>

Many heart arrhythmias are harmless; however, if they are particularly abnormal, or result from a weak or damaged heart, arrhythmias can cause serious and even potentially fatal symptoms. Fast facts on arrhythmias: ... Symptoms of arrhythmia often include dizziness, breathlessness, and palpitations.read more >>