what is arrhythmia?
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Arrhythmias An arrhythmia (ah-RITH-me-ah) is a problem with the rate or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm. A heartbeat that is too fast is called tachycardia (TAK-ih-KAR-de-ah). A heartbeat that is too slow is called bradycardia (bray-de-KAR-de-ah). Most arrhythmias are harmless, but some can be serious or even life threatening.
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Arrhythmias (Heart Rhythm Disorders) Arrhythmias are caused by: 1  Infection or fever. 2  Physical or emotional stress. 3  Diseases such as anemia or thyroid disease.  Drugs and other stimulants, such as caffeine, tobacco, alcohol, cocaine, amphetamines, and certain over-the-counter and prescription 1  medications. Your genes.  Some heart conditions.
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Supraventricular Tachycardia (SVT) Atrial Flutter & Atrial Tachycardia. An arrhythmia is an abnormality in the timing or pattern of the heartbeat. Arrhythmias may cause the heart to beat too rapidly, too slowly, or irregularly. They are common and may cause a wide variety of symptoms, such as a racing, skipping or fluttering sensation (called palpitations) in your chest.
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Heart arrhythmia Types of rapid heartbeats. A rapid heartbeat (tachycardia) is a type of cardiac arrhythmia. There are a variety of types of rapid cardiac arrhythmias: Atrial fibrillation (AF) is caused by an irregular, rapid quivering of the atria, the upper chambers of the heart. AF can result in ineffective pumping of blood, pooling of blood in the atria, and the formation of blood clots. Sinus tachycardia is a rapid, regular heartbeat that is over 100 beats per minute in adults. Sinus tachycardia may be normal in many cases and occurs as a response to many common conditions, such as exercise, stress, caffeine, illness, pain, or medication side effects.
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Abnormal heart rhythms An abnormal heart rhythm – sometimes called an arrhythmia – means your heart is beating too fast, too slow, or with an irregular pattern. Your heart has an electrical system that tells it when to beat and push blood around the body. If there is a problem with this system you may experience an abnormal heart rhythm.
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- Atrial flutter is an abnormality in the beating of the heart. Such abnormalities, whether in the rhythm or speed of the heartbeat, are known as arrhythmias. The heart is a muscle that pumps the blood through the body.
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Arrhythmias Arrhythmias are characterized by their site of origin: the atria or the ventricles. Supraventricular arrhythmias occur in the upper areas of the heart and are less serious than ventricular arrhythmias. Ventricular fibrillation is the most serious arrhythmia and is fatal unless medical help is immediate. Causes and symptoms
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Arrhythmia The SA node is a group of cells located at the top of your heart's upper right chamber (the right atrium). Any irregularity in your heart's natural rhythm is called an arrhythmia. Almost everyone's heart skips or flutters at one time or another, and these mild, one-time palpitations are harmless.
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Arrhythmias (Heart Rhythm Disorders) A heart rhythm disorder is an abnormal variation from the normal heartbeat. Heart rhythm disorders involve abnormalities of one or more of the following: heart rate, regularity of beats, sites where electrical impulses originate, or sequence of activation of heartbeats. Heart rhythm disorder is also referred to as an arrhythmia. The primary function of the heart is to supply blood and nutrients to the body. The regular beating, or contraction, of the heart moves the blood throughout the body.
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Arrhythmias The test identifies the origin of arrhythmias and is used to test the effectiveness of antiarrhythmic drugs. Tachycardia — A fast heart rate. Tachycardia is one of the two types of arrhythmia.
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Arrhythmias Atrial fibrillation, the most common type of serious arrhythmia (irregular heartbeat), is characterized by very fast, irregular electrical signals in the upper chambers of the heart called the atria. These electrical signals may travel through the atria at a rate of more than 300 per minute.
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Cardiac Arrhythmias A cardiac arrhythmia is any abnormal heart rate or rhythm. In normal adults, the heart beats regularly at a rate of 60 to 100 times per minute. And the pulse (felt at the wrist, neck or elsewhere) matches the contractions of the heart's two powerful lower chambers, called the ventricles.
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Supraventricular Tachycardia (SVT) Supraventricular Tachycardia (SVT) Physicians who treat this condition. An arrhythmia is an abnormality in the timing or pattern of the heartbeat. Arrhythmias may cause the heart to beat too rapidly, too slowly, or irregularly. They are common and may cause a wide variety of symptoms, such as a racing, skipping or fluttering sensation (called palpitations) in your chest.
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SELECT YOUR LANGUAGE About Arrhythmia. An arrhythmia is an abnormal heart rhythm. Learn about the heart's structure and why abnormal heart rhythms may cause problems. Read more.
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What Causes an Arrhythmia? What Causes an Arrhythmia? An arrhythmia can occur if the electrical signals that control the heartbeat are delayed or blocked. This can happen if the special nerve cells that produce electrical signals don't work properly. An arrhythmia also can occur if another part of the heart starts to produce electrical signals.
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Cardiac Arrhythmia or Cardiac Dysrhythmia Common Cardiac Arrhythmias. • Supraventricular tachycardia - a fast heart rate that originates in the upper chambers of the heart (atria). The most common are atrial fibrillation or flutter, and atrioventricular nodal reentry tachycardia. • Ventricular tachycardia - a fast heart rate that originates in the lower chambers of the heart (ventricles).
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Types of Arrhythmias Atrial fibrillation (AF or AFib) is the most common abnormal heart rhythm. Atrial fibrillation is an irregular, frequently rapid heart rhythm originating in the atria (top chambers of the heart).
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What Is Atrial Fibrillation? Atrial fibrillation, often referred to as afib, is an irregular heartbeat, a rapid heartbeat, or a quivering of the upper chambers of the heart, called the atria. Atrial fibrillation is due to a malfunction in the heart's electrical system, and is the most common heart irregularity, or cardiac arrhythmia. For more detail about how the heart works and what happens to the heart when it is in atrial fibrillation, see About the Heart.
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What Causes an Arrhythmia? What Causes an Arrhythmia? An arrhythmia can occur if the electrical signals that control the heartbeat are delayed or blocked. This can happen if the special nerve cells that produce electrical signals don't work properly. It also can happen if the electrical signals don't travel normally through the heart. An arrhythmia also can occur if another part of the heart starts to produce electrical signals.
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A Fib and RBBB Treato found 3,948 discussions about Anxiety and A Fib on the web. An arrhythmia is a problem with the speed or rhythm of the heartbeat. Atrial fibrillation (AF) is the most common type of arrhythmia. The cause is a disorder in the heart's electrical system. Read more on MedlinePlus.gov.
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Arrhythmias The AV node is a group of cells located between the atria and the ventricles. Types of supraventricular arrhythmias include atrial fibrillation (AF), atrial flutter, paroxysmal supraventricular tachycardia (PSVT), and Wolff-Parkinson-White (WPW) syndrome.
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Arrhythmias Symptoms of an arrhythmia include a fast heart-beat, pounding or fluttering chest sensations, skipping a heartbeat, flip-flops, dizziness, faintness, shortness of breath, and chest pains. Key terms. Bradycardia — A slow heart rate. Bradycardia is one of the two types of arrhythmia
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Overview Tachycardia is a common type of heart rhythm disorder (arrhythmia) in which the heart beats faster than normal while at rest. It's normal for your heart rate to rise during exercise or as a physiological response to stress, trauma or illness (sinus tachycardia).
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Atrial Fibrillation  (AF) Atrial fibrillation (A-tre-al fi-bri-LA-shun), or AF, is the most common type of arrhythmia (ah-RITH-me-ah). An arrhythmia is a problem with the rate or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm.trial fibrillation (A-tre-al fi-bri-LA-shun), or AF, is the most common type of arrhythmia (ah-RITH-me-ah). An arrhythmia is a problem with the rate or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm.
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Heart arrhythmia Ventricular arrhythmias include ventricular fibrillation and ventricular tachycardia. Arrhythmias are due to problems with the electrical conduction system of the heart. Arrhythmias may occur in children; however, the normal range for the heart rate is different and depends on age.
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Heart Disease and Abnormal Heart Rhythm (Arrhythmia) Atrial fibrillation is a very common irregular heart rhythm that causes the atria, the upper chambers of the heart, to contract abnormally. Atrial flutter. This is an arrhythmia caused by one or more rapid circuits in the atrium.