Mayo Clinic Health Manager
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Get StartedPremature ventricular contractions (PVCs)
In-Depth
Risk factors
- Chewing tobacco: Not a safe alternative to cigarettes Chewing tobacco — Chewing tobacco and other forms of smokeless tobacco pose numerous health risks.
- Cardiomyopathy Cardiomyopathy — Comprehensive overview covers symptoms and treatment of this heart muscle condition.
- Alcohol use: Do you have a drinking problem? Alcohol use self-assessment — Take this self-assessment to rate your drinking habits and explore solutions.
Symptoms
- Tachycardia Tachycardia — Comprehensive overview covers symptoms, diagnosis and treatment of a rapid heartbeat.
Tests and diagnosis
- Electrocardiogram Electrocardiogram — Overview covers definition and results of this test to monitor your heartbeat.
- Holter monitor Holter monitor — Overview covers what to expect during this test of your heart rhythm.
Causes
- Coronary artery disease Coronary artery disease — Comprehensive overview covers symptoms, treatment of this serious heart condition.
- Myocarditis Myocarditis — Comprehensive overview covers symptoms and treatment of this swelling of the heart muscle.
- Congenital heart defects in children Congenital heart defects — Comprehensive overview covers symptoms, causes and treatments of heart defects.
- Heart disease Heart disease — Comprehensive overview covers symptoms, causes, treatments and prevention of heart disease.
Complications
- Sudden cardiac arrest Sudden cardiac arrest — Comprehensive overview covers symptoms, causes, treatment of this medical emergency.
Lifestyle and home remedies
- Caffeine content for coffee, tea, soda and more Caffeine content — Find out how much caffeine is in coffee, tea, soda and sports drinks.
- Exercise: Rev up your routine to reduce stress Exercise helps reduce your stress. Find out why and how physical activity relieves stress.
Prevention
- Automated external defibrillators: Do you need an AED? Automated external defibrillators are available without a prescription. Should you get one?