Specific arrhythmias

Atrial Fibrillation

Atrial Flutter

Atrial Tachycardia

AV Node Reentry (AVNRT)

Wolfe Parkinson White (WPW)

Premature Ventricular Contractions

Ventricular Tachycardia

Treatment Options

Medical Management

Cardioversion

Ablation Therapy

Pacemakers and Defibrillators

 

Electrical disorders of the heart

Some abnormal heart rhythms can happen without the person knowing it, while some may cause the feeling of the heart racing, lightheadedness, or dizziness. At some point in life, many adults have had short-lived heart rhythm changes that are not serious. Certain heart rhythms, especially those that last long enough to affect the heartís function, can be serious or even deadly.

 

Palpitation or Skipped Beat

Although it may seem as if the heart missed a beat, it has really had an early heartbeat, an extra beat that happens before the heart has a chance to fill with blood thereby resulting in a pause.

Fluttering

A fluttering sensation (like butterflies in the chest) is usually due to extra or skipped beats that occur one right after the other, or may be caused by other kinds of abnormal heart rhythms.

Slow Heartbeat - Bradycardia

If the heartbeat is too slow (usually below 60 beats per minute), not enough blood carrying oxygen flows through the body. The symptoms of a slow heartbeat include Fatigue, Dizziness, Lightheadedness and Fainting or near fainting.

Rapid Heartbeat - Tachycardia

When the heart beats too quickly (usually above 100 beats per minute), the lower chambers, or ventricles, do not have enough time to fill with blood, so they cannot effectively pump blood to the rest of the body. The symptoms of a rapid heartbeat include Palpitations, Fast heart beat or racing heartbeat, Shortness of breath, Chest pain, Dizziness, Lightheadedness and Fainting or near fainting.

Chaotic, quivering or irregular rhythm

Sudden rapid, irregular and chaotic heartbeats may be a sign of a common heart rhythm problem called atrial fibrillation (AFib). Rarely, passing out, or fainting, may be caused by the most dangerous arrhythmia, ventricular fibrillation (VF). VF is the number one cause of sudden cardiac death. Within seconds, the person loses consciousness and, without immediate emergency treatment, will die within minutes.

Almost Fainting - Presyncope

Sometimes people have symptoms before they faint. Presyncope can be a sign of a heart rhythm disorder and should be evaluated carefully. Symptoms include Dizziness, lightheadedness, Blurred or narrowed (tunnel) vision, Sweating, Nausea, Headache or Confusion and/or difficulty speaking clearly or coherently.

Fainting - Syncope

Fainting from a heart rhythm disorder is more likely to happen suddenly and without warning than fainting from other causes, such as dehydration or low blood sugar. Any sudden loss of consciousness should be evaluated by a doctor. In some cases, fainting is the only warning sign of a dangerous heart rhythm that could cause sudden cardiac death.

 

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