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From Shiapedia
How a VC Can Affect Your Heart
Many people have occasional PVCs with no problems. If they occur often, PVCs may weaken your heart and increase your risk of heart failure.
A bundle of fibers located in the upper right-hand corner of your heart (the sinoatrial node, also known as SA) typically controls the heart's rhythm. Electrical signals travel to the ventricles or lower chambers of your heart.
Causes
PVCs occur when the electrical impulse that usually starts your heartbeat in a part called the sinus node (also known as the sinoatrial node or SA node) isn't. Instead, the impulse is generated in another area of your heart called the ventricles and triggers a mistimed beat. These extra beats, called ventricular tachycardia or fibrillation, may feel like your heart skipped a beat or is like it's fluttering. They can occur rarely without causing any symptoms, but they could occur frequently enough to affect your standard of living. If they are very frequent or cause weakness, dizziness, or fatigue, your doctor may treat them with medication.
For the majority of people, PVCs are harmless and aren't likely to increase your risk of heart disease or other health issues. Frequent PVCs however, may weaken your heart muscle over time. This is especially relevant if they are triggered by a heart condition like dilated cardiomyopathy, or arrhythmogenic right ventricular cardiomyopathy, which can lead to symptomatic heart failure.
The symptoms of PVCs include feeling like your heart beats faster or is fluttering, and you feel breathless. The fluttering may be more noticeable when you exercise or consume certain drinks or foods. PVCs are more prevalent in people with chronic anxiety or stress. Certain medications, such as digoxin, amiodarone, and cocaine, can also increase the risk.
If you are experiencing occasional PVCs Your doctor might recommend lifestyle changes and medicines. If you experience frequent PVCs, your doctor might suggest that you stay away from certain drinks and foods, such as caffeine and alcohol. You can also lessen your stress levels by having enough sleep and exercising.
If you have many PVCs Your doctor may suggest a medical procedure called radiofrequency catheter ablation. It destroys the cells that cause them. Electrophysiologists are the ones who perform this procedure. It is generally successful in treating the PVCs and reducing symptoms however, it doesn't prevent them from occurring in the future. In certain instances, it can increase the risk of developing atrial fibrillation (AFib), an illness that can cause stroke. It is not common, but it could be life-threatening.
Signs and symptoms
Premature ventricular contractions or PVCs may cause your heart to skip or be fluttering. These extra heartbeats are usually harmless, however, you should talk to your doctor in case you experience frequent episodes or symptoms like dizziness or weakness.
Normally, electrical signals begin in the sinoatrial node located in the top right side of the heart, and travel down to the lower chambers (or ventricles) which pump blood. The ventricles contract to force blood into the lungs. They then return to the center to start the next cycle of pumping. A Pvc doctor begins in a different location, the Purkinje fibers are located in the left side of the heart.
When PVCs occur door and window doctor the heart is affected, it may feel as if it's skipping a beat or pounding. If you experience only one or two episodes, and no other symptoms are present your cardiologist may not be able to treat you. If you've got a large number of PVCs the doctor may recommend an electrocardiogram, or ECG, to measure the heart's rate over a 24-hour period. They might also recommend wearing a Holter monitor that records the heart's rhythm over time to see the number of PVCs you have.
If you've had a prior heart attack or have cardiomyopathy -- a condition that affects how the heart pumps blood - should be aware of their PVCs and consult a cardiologist about lifestyle changes. These include abstaining from caffeine, alcohol, and smoking, managing stress and anxiety, and getting enough rest. A cardiologist can prescribe medication to slow the heartbeat, such as a beta blocker.
Even if you don't experience any other symptoms however, you should have PVCs checked by an expert in cardiology if they occur frequently. These irregular heartbeats could point to problems with the structure of your heart or other health issues, and over time, if they occur often enough, they could weaken the heart muscle. But the majority of people suffering from PVCs don't have any issues. They want to know if the irregular heartbeats or fluttering is normal.
Diagnosis
PVCs may feel like heartbeats that are fluttering, particularly if they're frequent and intense. People who experience a lot of them might feel like they're about to faint. They can also happen with training, even though many athletes who get them don't have any problems with their health or heart. PVCs may show up in tests such as an electrocardiogram (ECG) or Holter monitor. These patches contain sensors that record electrical impulses coming from your heart. A cardiologist might also use an echocardiogram, which uses ultrasound to look at the heart and see how it's working.
Most of the time, a doctor will be able to determine if the patient is suffering from PVCs from a patient's history and physical exam. Sometimes it is possible that they only be able to detect PVCs when they examine the patient for another reason, such as after an accident or a surgery. Ambulatory ECG monitors can detect PVCs, as well as other arrhythmias. They are able to detect heart disease if there is any concern.
If your cardiologist determines your heart is structurally healthy, reassurance may be all you need. If your symptoms are bothersome, or cause you to be anxious, avoiding alcohol, caffeine and other over the drug decongestants and reducing stress may help. Getting regular exercise, staying at a healthy weight and drinking enough water can also help reduce the frequency of PVCs. If your symptoms continue or are severe, talk with your physician about possible treatments that could help control the symptoms.
Treatment
If PVCs don't cause symptoms or happen rarely, they usually don't need treatment. If you are frequently affected or frequently, your doctor may wish to look for other heart issues and recommend lifestyle changes or medications. You could also undergo an operation (called radiofrequency cathode ablation) to eliminate them.
If you have PVCs the electrical signal that causes your heartbeat starts somewhere outside of the sinoatrial node (SA node) in the top right side of your heart. This could cause your heart to feel as if it skips beats or has additional beats. PVCs are more frequent among those with heart problems however it's unclear what causes them. PVCs can become more frequent as you age, and could be more frequent during exercise.
A glass doctor near me should perform an ECG along with an echocardiogram on a patient who suffers from frequent and painful PVCs to determine if there are structural heart problems. The window doctor will also likely conduct an exercise stress test to determine if the increased heartbeats are related to physical exercise. A heart catheterization, cardiac MRI or nuclear perfusion studies can be conducted to determine other reasons for the extra beats.
The majority of people who suffer from PVCs do not have any issues and can lead a normal life. They can increase the window doctor risk of dangerous heart rhythm disorders, especially if they occur in certain patterns. In some instances, this means that the heart muscle gets weaker and has difficulty pumping blood throughout the body.
Regular exercise and a balanced diet can lower the chances of developing PVCs. Avoid foods that are high in sodium and fat, and limit your intake of caffeine and tobacco. You should also try to get enough rest and reduce stress. Some medicines may also increase your risk for PVCs. If you are taking one of these medicines it's crucial to follow your doctor's recommendations regarding eating healthy, exercising and taking your medication.
Studies of patients who had an excessive amount of PVCs (that's more than 20 percent of their total heart beats) discovered that they had a higher risk of arrhythmia-induced cardiomyopathy. This can result in a need for a heart transplant in a few people.
