What is atrial arrhythmia? Atrial arrhythmias are irregular heartbeats that cause poor circulation. They occur when the upper chambers of your heart are out of rhythm with the lower chambers. …

Oct 13, 2023 · A heart arrhythmia (uh-RITH-me-uh) is an irregular heartbeat. A heart arrhythmia occurs when the electrical signals that tell the heart to beat don't work properly. The heart may …

Mar 8, 2024 · Atrial fibrillation (AFib) is an irregular and often very rapid heart rhythm. An irregular heart rhythm is called an arrhythmia. AFib can lead to blood clots in the heart. The condition …

Atrial tachycardia is a type of abnormal heart rhythm that’s too fast. Your heart’s upper chambers beat faster than your lower chambers as well. A chemical imbalance can make your heart’s …

Oct 4, 2023 · 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 …

Nov 8, 2021 · Atrial rhythms are classified as: Irritable sites in the atria fire very rapidly, between 400-600 bpm. This very rapid pacemaking causes the atria to quiver. The ventricles beat at a …

Jun 5, 2023 · Arrhythmia is an abnormal rhythm of the heart. The only normal rhythm of the heart is a normal sinus rhythm. In this rhythm, an impulse is generated in the sinoatrial (SA) node, …

Feb 4, 2025 · At the junction of the superior vena cava and high lateral right atrium is the sinoatrial (SA) or sinus node, a cluster of cells that generates the initial electrical impulse of each normal …

Atrial arrhythmia, also called supraventricular arrhythmia, begins in the upper chambers of the heart and includes: Atrial Fibrillation (sometimes called "afib"): A disorganized rhythm in the …

Arrhythmia describes a group of conditions that affect the heart’s natural rhythm. Different types of arrhythmias cause the heart to beat too fast, too slowly, or in an irregular pattern. The Stanford …