How a VC Can Affect Your Heart
Many people experience occasional PVCs with no problems. If they happen frequently, PVCs may weaken your heart and increase the risk of heart failure.
A bundle of fibers in the upper right-hand corner of your heart (the sinoatrial or SA node) typically controls your heart rhythm. Electrical signals travel from this node to the lower chambers of your heart, or ventricles.
Causes
PVCs are caused when the electrical impulse that typically begins your heartbeat in a region known as the sinus node (also called the sinoatrial node or SA node) does not. Instead, the impulse begins in a different part of your heart, the ventricles, and causes a wrongly timed beat. These extra beats are also called ventricular tachycardia or ventricular fibrillation. They may feel like the heart skipped a beating or feels fluttering. windowdoctor can happen infrequently and not cause any symptoms, or they can occur frequently enough to interfere with your daily life. If they are very frequent or cause dizziness, weakness or fatigue, your doctor might treat them with medication.
PVCs are generally safe and do not increase the risk of heart disease. A lot of PVCs however, may weaken your heart muscle over time. This is particularly true if the PVCs result from conditions like dilated cardiomyopathy and arrhythmogenic right ventricle cardiomyopathy that can lead to heart failure.
The symptoms of PVCs include a feeling that your heart skips a beat or is fluttering, and you feel exhausted. The fluttering could be more noticeable when you exercise or have certain drinks or foods. PVCs are more prevalent for those who suffer from chronic stress or anxiety. Certain medications, such as digoxin, amiodarone and cocaine, can also increase the risk.
If you have occasional PVCs your doctor may suggest lifestyle changes and medications. If you have frequent PVCs, your doctor might recommend that you avoid certain foods and drinks, such as caffeine and alcohol. You can also lower your stress levels by taking enough rest and working out.
If you have many PVCs Your doctor might suggest a medical procedure known as radiofrequency catheter ablation. This procedure eliminates the cells responsible for them. This procedure is performed by a specialist known as an electrophysiologist. The treatment is generally successful in treating PVCs and reducing symptoms, but does not prevent them from recurring in the future. In some instances it can increase the risk of developing atrial fibrillation (AFib) which can result in stroke. It is not common, but it can be life-threatening.
Symptoms
Premature ventricular contractions, or PVCs can cause your heart to skip or flutter. These extra heartbeats are generally harmless, but you should talk to your doctor in case you experience frequent episodes or symptoms like dizziness or weakness.
The electrical signals normally begin in the sinoatrial region, which is in the upper right part of the heart. They then travel to the lower chambers, or ventricles, where blood pumps are located. The ventricles then expand to push blood into your lungs and then return to your heart to begin the next cycle of pumping. A PVC starts at a different spot, the Purkinje fibers are located in the left side of the heart.
When PVCs happen, the heart may appear to be beating faster or slower. If you have a few episodes and no other symptoms, the doctor will probably not treat you. If you've got a lot of PVCs, your doctor may recommend that you undergo an electrocardiogram (ECG) to measure the heartbeat for 24 hours. He or she might also suggest wearing a Holter Monitor which tracks your heart rhythm and counts the number of PVCs.
People who have suffered an earlier heart attack or cardiomyopathy - an illness that affects the way the heart pumps blood - must take their PVCs seriously and consult an expert in cardiology about lifestyle modifications. This includes avoiding caffeine, alcohol and smoking, reducing stress and anxiety and ensuring adequate sleep. A cardiologist can prescribe beta blockers to slow down the heartbeat.
Even if you don't have any other signs it is still recommended to have PVCs examined by an cardiologist if they occur often. These irregular heartbeats could be a sign of problems with the structure of your heart or to other health conditions and, over time when they happen frequently enough, they may weaken the heart muscle. However, most people with PVCs do not experience any issues. They simply want to be aware that the fluttering and skippy heartbeats aren't typical.
Diagnosis
PVCs can feel like fluttering or skipped heartbeats, particularly when they are frequent or intense. People who experience them often may feel weak. They can also occur during exercise, though many athletes who experience them do not have any issues with their heart or health. PVCs can be detected on tests such as an electrocardiogram, or Holter monitor. They use sticky patches with sensors on them to 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 looking at them and taking a medical history. But sometimes they might only notice them while examining the patient for different reasons, like after an accident or surgery. Ambulatory ECG monitors can detect PVCs as well as other arrhythmias. They are able to detect cardiac disease when there is a concern.
If your cardiologist has determined that your heart is structurally healthy, reassurance may be all that's needed. However, if your symptoms are bothersome or make you feel anxious, staying away from alcohol, caffeine and other decongestants and reducing stress may help. Regular exercise, maintaining a healthy weight and drinking enough fluids can all aid in reducing the frequency of PVCs. If your symptoms persist or severe, speak to your doctor about medications that could be able to manage the symptoms.
Treatment
If PVCs do not cause any symptoms or occur rarely, they usually don't need treatment. If they are frequent, your doctor might need to examine for heart conditions or recommend lifestyle adjustments. You may also undergo an operation to rid yourself of them (called radiofrequency catheter ablation).
If you suffer from PVCs the electrical signal that triggers your heartbeat is generated from a place outside of the sinoatrial node (SA node) in the top right corner of your heart. This can make it feel like your heart skips beats or is beating faster. It's not known what causes these, but they're more common in people who have other heart conditions. PVCs can become more frequent as you age, and might occur more frequently during exercises.
A physician should perform an ECG and an echocardiogram on a patient who has frequent and painful PVCs to determine if there are structural heart problems. The doctor may also perform an exercise stress test to determine if the increased heartbeats are due to physical activity. A heart catheterization or cardiac MRI or nuclear perfusion study can be done to look for other causes for the extra beats.
Most people who suffer from PVCs have no complications and live an ordinary life. They can increase the risk of heart rhythm disorders that can be dangerous, especially if they occur in certain patterns. In some cases, that means that the heart muscle becomes weaker and has trouble pumping blood through your body.
A healthy, regular diet and a lot of exercise can reduce your chances of developing PVCs. Avoid foods that are high in fat and sodium, and you should also reduce your intake of caffeine and tobacco. Sleep and stress are equally crucial. Certain medications can increase the risk of getting PVCs. If you are taking any of these medicines, it is important to follow the advice of your doctor about eating healthy, exercising, and taking your medication.
In studies of patients with PVC burdens that are excessive (more than 20% of the total heartbeats) there was a higher incidence of arrhythmia-induced cardiac myopathy was discovered. Some people may need a heart transplant.