what is arrhythmia
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Arrhythmias URL of this page: //medlineplus.gov/ency/article/001101.htm. An arrhythmia is a disorder of the heart rate (pulse) or heart rhythm. The heart can beat too fast (tachycardia), too slow (bradycardia), or irregularly. Normally, your heart works as a pump that brings blood to the lungs and the rest of the body.
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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.
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Categories of Arrhythmias Arrhythmias are generally divided into two categories: ventricular and supraventricular. Ventricular arrhythmias occur in the lower chambers of the heart, called the ventricles. Supraventricular arrhythmias occur in the area above the ventricles, usually in the upper chambers of the heart, called the atria. The irregular beats can either be too slow (bradycardia) or too fast (tachycardia).
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Arrhythmias Ventricular arrhythmias: Abnormal rapid heart rhythms (arrhythmias) that originate in the lower chambers of the heart (the ventricles). Ventricular arrhythmias include ventricular tachycardia and ventricular fibrillation. Both are life threatening arrhythmias most commonly associated with heart attacks or scarring of the heart muscle from previous heart attack.
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cardiac arrhythmia cardiac arrhythmia. Etymology: Gk, kardia + a + rhythmos, without rhythm. an abnormal cardiac rate or rhythm. The condition is caused by a failure of the sinus node to maintain its pacemaker function or by a defect in the electrical conduction system. Examples of arrhythmia include bradycardia, ectopic beat, heart block, and tachycardia.
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Abnormal heart rhythms An abnormal heart rhythm – also 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 pump blood around your body.
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Overview Heart arrhythmia. Overview. Heart rhythm problems (heart arrhythmias) occur when the electrical impulses that coordinate your heartbeats don't work properly, causing your heart to beat too fast, too slow or irregularly. Heart arrhythmias (uh-RITH-me-uhs) may feel like a fluttering or racing heart and may be harmless.
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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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- Any type of abnormal heart rate or rhythm is termed an arrhythmia. Tachycardia is a type of arrhythmia where the electrical signals controlling the heart travel across the heart faster than normal, triggering the heart to beat too rapidly.
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Dysrhythmia Dysrhythmia (dis-RITH-mee-a), or arrhythmia (a-RITH-mee-a), is a change in the regular beat of the heart. The heart may seem to skip a beat, beat irregularly, or beat very rapidly or very slowly.
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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 arrhythmia simply means that the heart rhythm is irregular -- such as missing a heart beat or perhaps each beat does not follow the proper rhythm -- or it can also mean the rhythm is too fast or too slow. Natural or alternative cardiac arrhythmia treatment.
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Arrhythmias Catheter ablation (ab-LA-shun) is a medical procedure used to treat some types of arrhythmia (ah-RITH-me-ah). An arrhythmia is a problem with the rate or rhythm of the heartbeat. During catheter ablation, a series of catheters (thin, flexible wires) are put into a blood vessel in your arm, groin (upper thigh), or neck. The wires are guided into your heart through the blood vessel.
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Arrhythmias Heart failure is a condition in which the heart can't pump enough blood to meet the body's needs. Arrhythmias are irregular heartbeats. Ventricular fibrillation is a life-threatening arrhythmia that can cause death if not treated right away.
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Pacemakers and Implantable Defibrillators An arrhythmia is any disorder of your heart rate or rhythm. It means that your heart beats too quickly, too slowly, or with an irregular pattern. Most arrhythmias result from problems in the electrical system of the heart. If your arrhythmia is serious, you may need a cardiac pacemaker or an implantable cardioverter defibrillator (ICD). They are devices that are implanted in your chest or abdomen. A pacemaker helps control abnormal heart rhythms.
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Dysrhythmia Dysrhythmia is any variation in the regular beat of the heart. Some of these changes are normal—like Annie's palpitations * —while others are more serious. People's hearts naturally speed up with emotion or exercise and slow down during sleep.
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Heart Rhythm Problems (Arrhythmias) An arrhythmia (also called dysrhythmia) refers to what is usually an irregular heartbeat. The heart rate can be fast, slow, or irregular, taking into consideration age and activity. For example, a newborn's heart beats much faster than a 5-year-old child's heart. A fast heart rate is called tachycardia. A slow heart rate is called bradycardia. Some irregular heartbeats are normal: Sinus arrhythmia is the normal variation in heart rate that accompanies breathing in and out.
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- Arrhythmia—a cardiac disease in which the heart beats irregularly or at an abnormal pace—is caused by faulty electrical signal generation within the heart at the SA node. Recognizing the electrical properties of the heart, engineers created a treatment device, the artificial pacemaker, by applying principles of electrical engineering. The device controls the rate and rhythm of the heartbeat by overriding faulty natural signals with generated electrical pulses.
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- What is sinus arrhythmia? Sinus arrhythmia is a normal variation in the beating of your heart. Having a sinus arrhythmia may sound frightening because the term arrhythmia is also used to refer to an irregular or disorganized heart rhythm, such as atrial fibrillation or ventricular fibrillation. These irregular or disorganized heart rhythms can be serious or life threatening.
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sinus arrhythmia si·nus ar·rhyth·mi·a. rhythmic, repetitive irregularity of the heartbeat, the heart being under the control of its normal pacemaker, the sinuatrial node. Synonym(s): juvenile arrhythmia. sinus arrhythmia. an irregular cardiac rhythm in which the heart rate usually increases during inspiration and decreases during expiration. It is common in children and young adults and has no clinical significance except in elderly patients.
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- Atrial Fibrillation. 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.AF occurs if rapid, disorganized electrical signals cause the heart 's two upper chambers-called the atria (AY-tree-uh) - to fibrillate.n 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. AF occurs if rapid, disorganized electrical signals cause the heart 's two upper chambers-called the atria (AY-tree-uh) - to fibrillate.