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Heart palpitations


Definition:

Palpitations are feelings or sensations that your heart is pounding or racing. They can be felt in your chest, throat, or neck.

You may:

  • Have an unpleasant awareness of your own heartbeat
  • Feel like your heart skipped or stopped beats

The heart's rhythm may be normal or abnormal when you have palpitations.

Alternative Names:

Heartbeat sensations; Irregular heartbeat; Palpitations; Heart pounding or racing

Causes:

Heart palpitations can be due to:

  • Anxiety, stress, panic attack, or fear
  • Caffeine intake
  • Nicotine intake
  • Cocaine or other illegal drugs
  • Diet pills
  • Exercise
  • Fever

However, some palpitations are due to an abnormal heart rhythm, which may be caused by:

  • Heart disease
  • Abnormal heart valve, such as mitral valve prolapse
  • Abnormal blood level of potassium
  • Certain medicines, including those used to treat asthma, high blood pressure, or heart problems
  • Overactive thyroid
  • Low level of oxygen in your blood
When to Contact a Medical Professional:

If you have never had heart palpitations before, see your health care provider.

Call 911 or your local emergency number if you have:

Call your doctor right away if:

  • You often feel extra heartbeats (more than 6 per minute or coming in groups of 3 or more).
  • You have risk factors for heart disease, such as high cholesterol, diabetes, or high blood pressure.
  • You have new or different heart palpitations.
  • Your pulse is more than 100 beats per minute (without exercise, anxiety, or fever).
Prevention:

Adopting a healthy lifestyle, including a heart healthy diet and regular exercise, may help prevent palpitations.

References:

Goldman L. Approach to the patient with possible cardiovascular disease. In: Goldman L, Ausiello D, eds. Goldman's Cecil Medicine. 23rd ed. Philadelphia, PA: Saunders Elsevier; 2007:chap 48.


Review Date: 5/13/2014
Reviewed By: Michael A. Chen, MD, PhD, Associate Professor of Medicine, Division of Cardiology, Harborview Medical Center, University of Washington Medical School, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2002 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

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