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How a VC Can Affect Your Heart

PVCs are common and can be experienced by a variety of people with no cause for concern. If they are frequent, PVCs may weaken your heart and increase your risk for heart failure.

A bundle of fibers located in the upper right part of your heart (the sinoatrial or SA node) typically regulates your heart's rhythm. Electrical signals travel from this node to the lower chambers of your heart, or ventricles.

Causes

PVCs happen when the electrical impulse that normally triggers your heartbeat at the Sinus Node (also called the Sinoatrial or the SA node) does not. Instead, the impulse begins in a different area of your heart--the ventricles--and causes an untimed beat. These extra beats are known as ventricular tachycardia, and ventricular fibrillation. It could feel as if the heart beats faster or feels like it is fluttering. They can happen infrequently and have no symptoms or they may occur frequently enough to affect your daily life. Your doctor may prescribe medicine when they occur frequently or cause weakness, dizziness or fatigue.

For most people, PVCs are harmless and don't increase your risk of heart disease or other health issues. Over time, frequent PVCs can weaken the heart muscle. This is especially true if they are caused by a heart disease such as dilated cardiomyopathy or arrhythmogenic right ventricular cardiomyopathy, which may lead to symptomatic heart failure.

The signs of PVCs include feeling like your heart beats slower or it flutters. You may feel exhausted. The fluttering can be more noticeable when you exercise or consume certain drinks or foods. People who experience chronic stress or anxiety can have more PVCs and certain medications like amiodarone digoxin, and cocaine can increase the chance of developing them.

If you are experiencing occasional PVCs, your doctor may suggest lifestyle changes and medications. If you experience frequent PVCs, your doctor might recommend that you avoid certain drinks and foods, such as caffeine and alcohol. You can also take steps to lessen your stress and make sure you get enough sleep and exercise.

If you have many PVCs, your doctor may recommend a medical procedure referred to as radiofrequency catheter ablation, which eliminates the cells responsible for them. The procedure is carried out by a specialist called an electrophysiologist. The treatment is usually successful in treating PVCs, reducing symptoms but it does not stop them from recurring in the future. In certain instances, it can increase the risk of developing atrial fibrillation (AFib), which can cause stroke. It is not common however it could be life-threatening.

Signs and symptoms

Premature ventricular contractions, or PVCs, may make your heart seem to skip or flutter a beat. These extra heartbeats are harmless, but you may need to see your doctor when they occur frequently or if you are experiencing symptoms like dizziness or fatigue.

Normally, electrical signals begin in the sinoatrial node, located in the top right portion of the heart. They travel down to the lower chambers (or ventricles) which pump blood. The ventricles then expand to push blood into the lungs, and return to the heart to start the next pumping cycle. But window doctor begins at a different spot that is separate from the bundle of fibers known as the Purkinje fibers in the left-hand side of the heart.

When PVCs occur, they make the heart beat faster or feel as if it skipped a beat. If you have only one or two episodes, and no other symptoms are present, your cardiologist will probably not treat you. If you have many PVCs the doctor may recommend that you undergo an electrocardiogram (ECG) to determine the heartbeat for a period of 24 hours. He or she might also recommend wearing a Holter monitor that will track your heart rhythm over time to see how many PVCs you have.

People who have suffered previously from a heart attack or have suffered from cardiomyopathy - a condition which affects the method by which the heart pumps blood - must take their PVCs seriously and consult a cardiologist about lifestyle modifications. These include abstaining from alcohol, caffeine and smoking, reducing anxiety and stress and ensuring adequate sleep. A cardiologist can prescribe beta blockers to slow the heartbeat.

If you are experiencing frequent PVCs, even if you do not have any other signs, you should see an expert in cardiology. These heartbeats that are irregular could indicate a problem in the structure of your heart or lungs and if they occur often enough, can weaken the heart muscle. However, most people with PVCs don't have any issues. They simply want to be aware that the fluttering and skippy heartbeats aren't typical.

Diagnosis

PVCs may feel like heartbeats that flutter, particularly if they're frequent and intense. People who experience them often may feel weak. Exercise can cause them, but many athletes who experience them have no heart or health problems. PVCs may show up in tests like an electrocardiogram (ECG) or Holter monitor. These use sticky patches with sensors that record electrical impulses from your heart. A cardiologist could also employ an ultrasound echocardiogram to study the heart.

A doctor will usually be able to determine if a patient has PVCs by looking at them and taking a medical history. Sometimes it is possible that they not be aware of PVCs until they examine a patient for another reason, such as after an accident or a surgery. Ambulatory ECG monitoring systems also assist in detecting PVCs and other arrhythmias, and they might be used when there is a concern of a cardiac condition.

If your cardiologist has determined that your heart is structurally healthy, reassurance might be all that's needed. If your symptoms are troubling or make you feel anxious, avoiding alcohol, caffeine and other decongestants and reducing stress can aid. Regular exercise and maintaining a healthy weight and drinking enough fluids can aid in reducing the frequency of PVCs. If your symptoms persist or extreme, consult your physician about the medications that could help manage the symptoms.





Treatment

If PVCs do not cause any symptoms or happen rarely they aren't usually in need of treatment. If you are frequently affected or frequently, your doctor may wish to examine for other heart conditions and recommend lifestyle changes or medications. You could also have an operation to rid yourself of them (called radiofrequency catheter ablation).

If you have PVCs in your heart the electrical signal that creates your heartbeat is located outside of the sinoatrial (SA) node that is located in the upper right corner of your heart. This could cause it to feel like your heart skips a beat or has a few extra beats. It's not known what causes these symptoms, but they're common in people with other heart problems. PVCs may increase in frequency as you age, and they could be more frequent during exercises.

A doctor should conduct an ECG and an echocardiogram for a patient who has frequent and painful PVCs to rule out structural heart diseases. The doctor may also perform an exercise stress test to determine if the increased heartbeats are caused by physical activity. To find out whether there are any other causes for the extra beatings an invasive heart catheterization or cardiac MRI is possible.

The majority of people who suffer from PVCs do not experience any complications and can lead an ordinary life. They could increase the risk of developing heart rhythm disorders that can be dangerous, especially if they occur in certain patterns. In some instances, this means that your heart muscle gets weaker and is unable to pump blood through your body.

Regular exercise and a healthy diet can lower the risk of developing PVCs. Avoid foods high in fat and sodium, and limit your consumption of tobacco and caffeine. Sleep and stress are equally important. Certain medications can increase the risk of developing PVCs. If you are taking any of these medicines it is essential that you follow the advice of your doctor regarding healthy eating, exercising, and taking your medication.

Studies of patients with a high amount of PVCs (that's more than 20 percent of their total heart beats) discovered that they had a higher rate of arrhythmia-induced cardiomyopathy. Some patients may require an organ transplant.