If these more severe symptoms occur, they should be addressed immediately. More severe symptoms may include chest pain, sweating, shortness of breath, lightheadedness, fatigue, and dizziness or fainting. Sometimes, mild symptoms can include flutters or butterflies in your chest, a racing or slowing heart rate or a heart pounding. They can include disease or illness, a stressful lifestyle, too much drinking and smoking, certain medications, trauma, surgery, and genetic or birth defects.Īccording to the Mayo Clinic, heart arrhythmias often don't have any signs or symptoms, but a doctor may catch them during a routine visit. The AHA lists many causes that can lead to heart arrhythmias. The blockage slows the heart rate because the messages of when to pump and contract are not coming on time. Conduction block is a heart rhythm condition caused by a breakdown in the flow of the electrical pulses that make the heart pump.Heart rhythms will beat too quickly or, more commonly, too slowly when malfunctioning. The sinus nodes are the natural pacemakers in the heart. Sick sinus syndrome is due to defective sinus nodes.It is usually harmless for people with healthy hearts, but it can be life-threatening for a heart already weakened by heart disease. Ventricular tachycardia is also due to defective electrical pulses in the heart's lower ventricles.Ventricular fibrillation is most found in those with underlying heart disease or those who have experienced trauma. If normal heart rhythm is not restored, it can lead to death. It is a misfire in the electrical signals of the heart that cause the ventricles to flutter randomly. Ventricular fibrillation is a heart rhythm issue in the heart's lower ventricles.SVT can also lead to serious complications such as stroke and other heart diseases. It is an umbrella term for arrhythmias that start above the lower heart chambers. Supraventricular tachycardia (SVT) is categorized as a sudden pounding of the heart.It is also associated with an increased risk of stroke. The heartbeats are rapid, but not chaotic like with a-fib. It starts with an electrical short-circuit in the upper heart chamber. It is described as a rapid, chaotic heartbeat and is associated with an increased risk of blood clots and stroke. Centers for Disease Control and Prevention, more than 12 million people will experience a-fib by 2030. ![]() Atrial fibrillation (a-fib) is one of the most common types of arrhythmia.The Mayo Clinic groups heart arrhythmias into two main types, tachycardia (faster heartbeats) and bradycardia (slower heartbeats). Most of the time, they are harmless, but they can signify something more serious. Heart arrhythmias can also cause the heart rhythm to slow down or skip. The electrical pulses keep the heart's rhythm smooth and even, he explained in a recent article.īut when the electric signals that control the pace of your heartbeat malfunction, that is a heart arrhythmia, according to the American Heart Association (AHA).Īrrhythmias can feel like flutters or butterflies in your chest or that your heart is racing or pounding. Mark Anderson of Johns Hopkins University in Baltimore, "the heart's system is not unlike the electrical system in a car," which helps the car run properly. Medications, intense exertion or anxiety can also trigger heart rhythm changes, or arrhythmias.Īccording to Dr. But much more serious, and sometimes deadly, things can throw off the heart's rhythm, including dehydration, a history of heart disease or a heart defect.
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