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- Heart arrhythmia - Symptoms and causes - Mayo Clinic
A heart arrhythmia (uh-RITH-me-uh) is an irregular heartbeat A heart arrhythmia occurs when the electrical signals that tell the heart to beat don't work properly The heart may beat too fast or too slow Or the pattern of the heartbeat may be inconsistent A heart arrhythmia may feel like a
- Tachycardia - Symptoms and causes - Mayo Clinic
The fast heartbeat may be discovered when a physical exam or heart tests are done for another reason In general, tachycardia may cause these symptoms: Racing, pounding heartbeat or flopping in the chest, called palpitations Chest pain Fainting Lightheadedness Rapid pulse Shortness of breath When to see a doctor Many things can cause
- Heart rate: Whats normal? - Mayo Clinic
A normal resting heart rate for adults ranges from 60 to 100 beats per minute A heart rate above or below that may signal a health condition
- Atrial fibrillation - Symptoms and causes - Mayo Clinic
Atrial fibrillation (AFib) is a heart rhythm disorder In a typical heart, a group of cells called the sinus node sends electrical signals that start each heartbeat The signals go across the upper heart chambers to the AV node, where they usually slow down Then the signals go to the lower heart chambers, causing them to squeeze and pump out blood But in AFib, the signals in the upper
- Ventricular tachycardia - Symptoms and causes - Mayo Clinic
Ventricular tachycardia is a type of irregular heartbeat, called an arrhythmia It starts in the lower chambers of the heart, called the ventricles This condition also may be called V-tach or VT A healthy heart typically beats about 60 to 100 times a minute at rest In ventricular tachycardia, the heart beats faster, usually 100 or more beats a minute
- Heart palpitations - Symptoms causes - Mayo Clinic
Heart palpitations (pal-pih-TAY-shuns) are feelings of having a fast-beating, fluttering or pounding heart Stress, exercise, medication or, rarely, a medical condition can trigger them Although heart palpitations can be worrisome, they're usually harmless Rarely, heart palpitations can be a symptom of a more serious heart condition, such as an irregular heartbeat (arrhythmia), that might
- Hyperthyroidism - Symptoms and causes - Mayo Clinic
Hyperthyroidism speeds up the body's metabolism That can cause many symptoms, such as weight loss, hand tremors, and rapid or irregular heartbeat Several treatments are available for hyperthyroidism Anti-thyroid medicines and radioiodine can be used to slow the amount of hormones the thyroid gland makes
- Supraventricular tachycardia - Symptoms and causes - Mayo Clinic
Supraventricular tachycardia (SVT) is a type of irregular heartbeat, also called an arrhythmia It's a very fast or erratic heartbeat that affects the heart's upper chambers SVT also is called paroxysmal supraventricular tachycardia The typical heart beats about 60 to 100 times a minute During
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