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.
In this article
This information is produced and provided by the National
Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National
Institute via the Internet web site at http://
.gov or call 1-800-4-CANCER.
WebMD Medical Reference from Healthwise
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