Oct 13, 2023 · Some heart arrhythmias are harmless. Others may cause life-threatening symptoms. There are times when it is OK to have a fast or slow heartbeat. For example, the heart may beat …

The term “arrhythmia” refers to any problem in the rate and/or rhythm of a person’s heartbeat. During an arrhythmia, changes in heart tissue and activity, or in the heart’s electrical impulses, may cause the …

Jun 19, 2025 · Arrhythmias may affect the upper or lower chamber of your heart. The most common type of arrhythmia is atrial fibrillation, which causes an irregular and fast heartbeat.

Mar 20, 2023 · What is arrhythmia? An arrhythmia (also called dysrhythmia) is an abnormal heartbeat. Arrhythmias can start in different parts of your heart and they can be too fast, too slow or just irregular.

Sometimes arrhythmias are silent, meaning they cause no obvious symptoms. A doctor can detect an irregular heartbeat during a physical exam by taking your pulse, listening to your heart or by …

Jul 9, 2025 · Arrhythmias occur when electrical impulses that direct and regulate heartbeats don’t function properly. Learn the signs, symptoms, and when to seek medical attention.

Arrhythmias, also known as cardiac arrhythmias, are irregularities in the heartbeat, including when it is too fast or too slow. [2] Essentially, this is anything but normal sinus rhythm.

Sep 29, 2025 · What Is an Arrhythmia? An arrhythmia (pronounced as “ uh-RITH-me-uh”) is an irregular heartbeat. This means your heart is out of its usual rhythm. About 1.5%-5% of people have …

Mar 24, 2022 · Learn about the causes, symptoms, and treatments for arrhythmia.

With a cardiac arrhythmia, your heart may be beating too slowly, too quickly, or irregularly. This can feel like your heart is fluttering or racing in your chest. There are several types of arrhythmias, including: …