Premature ventricular contractions (PVCs) are a type of irregular heartbeat. They occur when the electrical signal to start your heartbeat comes from your lower heart chambers. PVCs are common and usually aren’t dangerous. Your risk of complications increases if you have another heart condition, such as heart disease or a congenital heart defect.
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Premature ventricular contractions (PVCs) are a type of irregular heartbeat. They occur when the electrical signal that starts your heartbeat comes from one of your bottom two heart chambers (ventricles). The signal typically starts in the top right chamber (atrium).
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Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy
PVCs are not always a problem. But if they repeatedly happen for months or years, they can cause a type of cardiomyopathy, or heart muscle weakening. PVCs usually go away with medication or other minimally invasive treatments.
Some people call premature ventricular contractions “pre ventricular contractions.” Healthcare providers may also refer to them as:
Typically, in your heart conduction system, a cluster of cells in your right atrium called the sinoatrial (SA) node sends out the first electrical signal of a heartbeat. That signal moves through your heart and travels to your left and right ventricles. It tells your heart to contract.
In PVCs, that first signal starts in one of your ventricles. As a result, the signal travels differently through your heart and causes an irregular heartbeat. Sometimes, a PVC may feel like your heart “skipped a beat.”
PVCs can happen in anyone, but they’re more common in older adults and those with heart disease. Your risk for PVCs also increases if you have:
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PVCs are quite common. Up to 75% of people experience them.
Many people don’t have any symptoms or health problems associated with PVCs. But if you do experience symptoms, speak with your healthcare provider. You may need treatment to prevent heart problems such as cardiomyopathy.
PVCs typically aren’t life-threatening. But they may damage your heart muscle if they repeatedly occur for a long period.
Many people don’t experience any symptoms of a PVC. If you have symptoms, they’re usually minor and may include:
If you have another heart condition, you may notice that a PVC causes shortness of breath (dyspnea). You may also notice more symptoms as you have more PVCs.
Many people describe premature ventricular contractions as a heart flutter and skipped beat. But you may not feel any symptoms at all. Most people don’t feel a premature ventricular contraction.
Several conditions or factors can trigger a premature ventricular contraction, including:
Your healthcare provider asks you about your symptoms and health history and performs a physical exam. They may listen to your heartbeat with a stethoscope to check for signs of irregularities.
Usually, the first test is an electrocardiogram (EKG). An EKG measures your heart rate and evaluates the electrical signals in your heart. Your provider usually can see an arrhythmia or extra beats clearly on an EKG.
Sometimes, you may wear a Holter monitor or another type of heart monitor to measure your heart’s electrical activity over several days. Measuring your heart rhythm and heart rate over a few days can help detect infrequent PVCs.
Your provider may recommend other tests if you have many PVCs or have had them for a long time. These tests check for root causes of PVCs, including other heart problems. You may have:
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People who have infrequent PVCs may not need any treatment. Treatment for underlying heart conditions may decrease the frequency of PVCs. For example, you may take medicines to reduce blood pressure or lower your heart rate. These medicines may also reduce how often you experience PVCs.
Sometimes, your provider offers specific PVC treatment. You only need treatment specifically for a PVC if you have frequent irregular heartbeats that could damage your heart muscle. Treatment may include:
There’s no way to prevent premature ventricular contractions. But you may increase your overall heart health by:
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Several factors can increase your risk of premature ventricular contractions, including:
Generally, premature ventricular contractions have a positive outlook. They don’t increase the risk of health complications in most people.
Your risk of health complications, including a shorter lifespan, increases if you have other health problems or a history of heart attacks.
If you have premature ventricular contractions or think you could, you may also want to ask your healthcare provider:
PVCs aren’t usually an emergency. Call 911 and go to your nearest emergency center if you experience other symptoms along with PVCs, including:
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PVCs can increase your risk of sudden cardiac death if you have underlying structural heart disease or if they arise from specific areas in your heart. However, in most people, PVCs are benign and don’t lead to sudden cardiac death.
Yes. Heart fluttering, pounding and other symptoms may be signs of other health conditions such as:
A note from Cleveland Clinic
Premature ventricular contractions are a type of irregular heartbeat. They occur when the electrical signal that starts your heartbeat comes from your lower heart chambers instead of your top heart chamber. A PVC often feels like a skipped heartbeat or heart flutter. However, most people experience no symptoms at all. PVCs aren’t dangerous in most people. Your risk of PVC complications increases if you have other health conditions, including heart disease.
Last reviewed on 07/29/2022.
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