Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier
WebMD

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started
My Medicine
WebMD

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion
    WebMD

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community
    WebMD

    Community

    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Heart Disease Health Center

Font Size
A
A
A

Premature Ventricular Contractions (PVCs) - Topic Overview

Premature ventricular contractions (PVCs) are heartbeats that occur earlier than they should. These early beats briefly interrupt the heart's rhythm.

A PVC may feel like a skipped heartbeat or a flutter. PVCs are the most common type of change in heart rhythm. They are common in children and teens as well as in adults.

Recommended Related to Heart Health

The Truth Behind More Holiday Heart Attacks

Your heart may leap with delight at the electronic gizmo or emerald bracelet that you’ve just unwrapped from under the Christmas tree. But you can’t say the same for that nasty holiday surprise known as the “Merry Christmas coronary” or “Happy Hanukkah heart attack.” For many years, researchers have been intrigued by a disturbing pattern: Deadly heart attacks increase during the winter holiday season. One study even found distinct spikes around Christmas and New Year’s Day. “We certainly know that...

Read the The Truth Behind More Holiday Heart Attacks article > >

Early heartbeats can happen in the upper chambers (atria) or lower chambers (ventricles) of the heart. With PVCs, the ventricles beat early. An extra beat is followed by a pause and then a stronger heartbeat. It's this stronger heartbeat that creates the feeling of a skipped beat or a flutter.

In people who have healthy hearts, occasional PVCs are nothing to worry about. They usually go away on their own. They don't need treatment. Talk to your doctor if you have other symptoms along with PVCs, such as dizziness, lightheadedness, or fainting.

If you have a known heart problem, such as heart failure or heart disease, PVCs may be a sign that a dangerous heart rhythm could occur. So if you have a heart problem, talk to your doctor if you feel any change in your heartbeat.

The cause of PVCs usually isn't known. But the chance of having PVCs can be increased by:

  • Having too much or too little of certain minerals (electrolytes) in your body.
  • Having too little oxygen in your blood, which could happen if you have COPD or pneumonia.
  • Using some medicines, such as albuterol.
  • Having too much caffeine.

WebMD Medical Reference from Healthwise

Last Updated: March 12, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
1
Next Article:

Premature Ventricular Contractions (PVCs) Topics

Today on WebMD

x-ray of human heart
A visual guide.
atrial fibrillation
Symptoms and causes.
 
heart rate graph
10 things to never do.
heart rate
Get the facts.
 
empty football helmet
Article
red wine
Video
 
eating blueberries
Article
Simple Steps to Lower Cholesterol
Slideshow
 
Inside A Heart Attack
SLIDESHOW
Omega 3 Sources
SLIDESHOW
 
Salt Shockers
SLIDESHOW
lowering blood pressure
SLIDESHOW