This can result from cardiovascular problems, such as a previous heart attack, and the use of certain drugs. The speed of the heartbeat does not allow the ventricles to fill and contract properly, thereby reducing blood supply to the body. Ventricular fibrillation V-fib is a serious cardiac disturbance. The ventricles quiver instead of beating, resulting in poor blood supply to the body.
V-fib is a medical emergency. If a normal heart rhythm does not return quickly, blood circulation can cease, which can lead to death. These tests may include:. Some of the complications of tachycardia can include :. Tachycardia refers to rapid heart rhythms.
Some causes include heart disease and various lifestyle factors. It is possible to have tachycardia without symptoms, but it can lead to complications, such as heart attack or stroke. Anyone who has concerns about their heart health should seek medical advice, as early treatment can help prevent long-term and possibly life threatening complications.
QT prolongation occurs when the heart takes longer to contract and relax than it usually does. Learn more about the effects of QT prolongation here. Dysrhythmia and arrhythmia are both terms doctors use to describe an abnormal heart rate. Types include bradyarrhythmia or supraventricular arrhythmia.
Ventricular tachycardia VT causes the heart to beat at a rate of over beats per minute. VT causes include underlying heart disease. Learn more. Bradyarrhythmia means a slow heart rate with an arrhythmia. It is not always a cause for concern but may signal a serious underlying condition.
Atrial fibrillation creates an irregular heart rhythm through electrical signal malfunctions. Learn more about the causes and symptoms of the…. Everything you need to know about tachycardia.
Definition Causes Treatments Slowing a rapid heartbeat Prevention Symptoms Possible complications Types Risk factors Diagnosis Complications Summary Tachycardia refers to a fast resting heart rate, usually over beats per minute.
What is tachycardia? In the Special Health Report, Controlling Your Blood Pressure , find out how to keep blood pressure in a healthy range simply by making lifestyle changes, such as losing weight, increasing activity, and eating more healthfully. Thanks for visiting. Don't miss your FREE gift. Sign up to get tips for living a healthy lifestyle, with ways to fight inflammation and improve cognitive health , plus the latest advances in preventative medicine, diet and exercise , pain relief, blood pressure and cholesterol management, and more.
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Caring for an aging parent? Tips for enjoying holiday meals. If you already have heart disease, you can take steps to help prevent tachycardia or another arrhythmia:. Tachycardia care at Mayo Clinic. Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. This content does not have an English version.
This content does not have an Arabic version. Overview Tachycardia heartbeat Open pop-up dialog box Close. Tachycardia heartbeat In tachycardia, an abnormal electrical impulse starting in the upper or lower chambers of the heart causes the heart to beat faster.
Request an Appointment at Mayo Clinic. Typical heartbeat Open pop-up dialog box Close. Typical heartbeat In a typical heart rhythm, a tiny cluster of cells at the sinus node sends out an electrical signal. Share on: Facebook Twitter.
Show references Homoud MK, et al. Sinus tachycardia: Evaluation and management. Accessed March 3, Zipes DP, et al. Diagnosis of cardiac arrhythmias. Elsevier; Accessed March 5, Crawford MH, ed. McGraw-Hill Education; What is an arrhythmia? National Heart, Lung, and Blood Institute. Overview of arrhythmias. Merck Manual Professional Version. If you have anemia, you may be overly tired, or very weak.
It may be hard for you to do any kind of your normal activities. Some people may chest pain in addition to their palpitations, which may range from excruciating, to a mild discomfort. The severity of pain does not indicate how severe the damage to the heart muscle may be. If you experience chest pain with your palpitations, seek emergency help immediately.
If your rapid heartbeat is due to lung problems, you may experience shortness of breath, either at rest or while performing any type of activity. This may include walking to the door, or climbing stairs. For rapid heart rates that are caused by shortness of breath, you may have trouble lying flat in bed, and you may have to sleep on 2 or more pillows. Your shortness of breath may cause you to wake up in the middle of the night.
If you have heart problems, your legs may be swollen, especially in your feet and ankles. You may gain "water" weight easily, or feel bloated. Things You Can Do for Rapid Heartbeat: Make sure you tell your doctor, as well as all healthcare providers, about any other medications you are taking including over-the-counter, vitamins, or herbal remedies.
Do not take aspirin or products containing aspirin unless your healthcare provider permits this. Remind your doctor or healthcare provider if you have a history of diabetes, liver, kidney, or heart disease.
If you have a family history of heart disease, stroke, high blood cholesterol, or high blood pressure, in a first or second-degree relative, you may be at risk for certain problems. Notify your healthcare provider if you have any of these diseases in your family. Smoking can cause palpitations and increased heart rate. If you smoke, be sure to quit.
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