As a medical professional with a background in cardiology, I can tell you that the seriousness of a heart arrhythmia can vary widely. Arrhythmias are changes in the normal rhythm of the heartbeat and can be categorized as either too fast, too slow, or irregular. Some arrhythmias may not cause any symptoms and might not require treatment, while others can be life-threatening. Factors that determine the seriousness include the type of arrhythmia, its underlying cause, how long it lasts, and the individual's overall health. For example, atrial fibrillation can lead to blood clots and stroke if not managed properly, while ventricular tachycardia and ventricular fibrillation can cause sudden cardiac arrest, which is a medical emergency. Treatment options range from lifestyle changes and medications to procedures like ablation or the implantation of a pacemaker or defibrillator. It's crucial for individuals with arrhythmias to work closely with their healthcare providers to determine the best course of action based on their specific situation. read more >>

Disease Categories. Electrical : Abnormal heart rhythms (arrhythmias) are caused by problems with the electrical system that regulates the steady heartbeat. ... Some arrhythmias are very dangerous and cause sudden cardiac death, while others may be bothersome but not life threatening.read more >>