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How a VC Can Affect Your Heart

Many people have occasional PVCs and have no issues. If they are frequent, PVCs may weaken your heart and increase the risk of heart failure.

The heart's rhythm is usually controlled by a group of fibers located in the upper right part of your heart. This is called the sinoatrial node, or SA. Electrical signals are transmitted from there to the lower heart chambers or ventricles.

Causes

PVCs occur when the electrical impulse which normally triggers your heartbeat at the Sinus Node (also known as the Sinoatrial or the SA node) is not initiated. The impulse actually starts in the ventricles, which causes an irregular heartbeat. These extra beats, known as ventricular tachycardia, or ventricular fibrillation, could feel as if your heart skipped a beat, or it feels like it is like it's fluttering. They can happen infrequently and cause no symptoms, or they can occur frequently enough to impact your quality of life. Your doctor might prescribe medication when they occur frequently or cause dizziness, weakness or fatigue.

PVCs are generally safe and do not increase your risk of heart disease. Frequent PVCs, however, can weaken your heart muscle over time. This is particularly true if the PVCs are caused by a condition like dilated cardiomyopathy and arrhythmogenic right-ventricular cardiomyopathy, which could lead to heart failure.

The symptoms of PVCs include a feeling that your heart skips a beat or it flutters. You may feel exhausted. The fluttering can be more apparent when you exercise or have certain drinks or foods. PVCs are more common in people with chronic stress or anxiety. Certain medications, such as digoxin, amiodarone and cocaine, can increase their risk.

If you are experiencing occasional PVCs Your doctor might recommend lifestyle changes and medicines. If you have frequent PVCs, your physician may recommend avoiding certain drinks and foods, such as caffeine and alcohol. You can also take steps to reduce your stress and take advantage of plenty of rest and exercise.

If you have many PVCs Your doctor may suggest a medical procedure known as radiofrequency catheter ablation. This procedure eliminates the cells responsible for them. The procedure is carried out by a specialist called an electrophysiologist. It is typically successful in treating the PVCs and reducing symptoms, but it doesn't stop them from recurring in the future. In certain instances, it can increase the risk of having atrial fibrillation (AFib), an illness that can result in stroke. This is rare but can be life-threatening.

Symptoms

Premature ventricular contractions or PVCs, can cause your heart appear to skip or flutter a beat. These heartbeats can be harmless, however, you should talk to your doctor if you have frequent episodes or signs like dizziness or weakness.

Normaly, electrical signals begin in the sinoatrial, located in the upper right-hand corner of the heart. They then move to the lower chambers, also known as ventricles, which pump blood. The ventricles expand to push the blood into the lung. They return to the center to start the next cycle of pumping. But a PVC begins in a different location, from the bundle of fibers known as the Purkinje fibers, located in the lower left part of the heart.

When PVCs happen they can make the heart appear to be beating faster or slower. If you only have a few episodes, and there are no other symptoms, your cardiologist will probably not be able to treat you. However, if windowdoctor have large number of PVCs, the doctor may recommend an electrocardiogram, or ECG to determine your heart rate over the course of 24 hours. They may also suggest wearing a Holter Monitor that records your heart rhythm and counts the number of PVCs.

People who have suffered a heart attack in the past or have cardiomyopathy -an illness that affects the way that the heart pumps blood- should take their PVCs seriously and consult a cardiologist about changes to their lifestyle. This includes cutting down on caffeine, alcohol and smoking, managing stress and anxiety, and getting enough rest. A cardiologist can prescribe medication to slow heartbeat, such as a beta blocker.

Even if you don't have any other symptoms however, you should have PVCs checked by a cardiologist if they happen often. These irregular heartbeats could be a sign of a problem with the structure of your lungs or heart, and if they occur often enough, it could weaken the heart muscle. However, most people suffering from PVCs don't experience any problems. They would like to know if rapid heartbeats, or the skipping of heartbeats is normal.

Diagnosis

PVCs can feel like fluttering or skipped heartbeats, especially if they're intense or frequent. People who experience them often may feel faint. Exercise can cause PVCs, but a lot of athletes who suffer from them have no heart or health issues. PVCs may show up in tests such as an electrocardiogram (ECG) or Holter monitor. These use sticky patches with sensors that record electrical impulses from your heart. A cardiologist can also perform an ultrasound echocardiogram to examine the heart.

A doctor is often able to tell if a patient has PVCs by examining them and taking their medical history. Sometimes, however, they may only be able to detect PVCs when they examine patients for a different reason, such as after an accident or a surgery. Ambulatory ECG monitoring systems can also assist in detecting PVCs and other arrhythmias and can be used when there is a concern of a cardiac condition.

If your cardiologist has determined that your heart is structurally healthy, reassurance may be all you need. If your symptoms are bothersome or cause you to feel anxious, staying away from caffeine, alcohol and over-the-counter decongestants and reducing stress can help. Engaging in regular exercise, keeping at a healthy weight and drinking enough fluids can decrease the likelihood of PVCs. If the symptoms persist or are severe, talk with your physician about possible medication options to treat the symptoms.

Treatment

If PVCs don't cause symptoms or happen rarely, they usually don't need treatment. If they are frequent your doctor may need to examine for heart conditions or recommend lifestyle adjustments. You could also have a procedure (called radiofrequency cathode ablation) to get rid of them.


If you suffer from PVCs in your heart, the electrical signal which creates your heartbeat is located different than the sinoatrial (SA) node that is located in the upper right-hand corner of your heart. This can make it feel like your heart skips beats or is beating faster. PVCs are more frequent among those with heart problems however, it's not clear the reason behind them. PVCs can increase in frequency as we age and can occur more frequently during exercises.

If a patient has frequent and painful PVCs the doctor should conduct an ECG and an echocardiogram to rule out structural heart disease. They may also perform an exercise stress test to determine whether the extra beats are a result of physical activity. A heart catheterization or cardiac MRI or nuclear perfusion studies can be performed to find other reasons for the increased beats.

Most people who suffer from PVCs don't experience any issues and can live an ordinary life. But they can increase your risk of having dangerous heart rhythm issues especially if you are suffering from certain patterns of them. In some instances, this means that the heart muscle becomes weaker and it is more difficult to pump blood throughout your body.

A regular, healthy diet and regular exercise can reduce the chances of developing PVCs. Avoid foods high in sodium and fat, and limit your intake of tobacco and caffeine. You should also try to get enough rest and reduce stress. Certain medications can increase the risk of getting PVCs. If you're taking one of these medications it's crucial to follow your doctor's instructions about eating well, exercising and taking your medication.

In studies of patients with high PVC burdens (more than 20% of total heartbeats), a higher rate arrhythmia-induced myopathy in the heart was observed. Some patients may require an organ transplant.

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