Heart arrhythmia - Symptoms and causes - Mayo Clinic
2023年10月13日 · A heart arrhythmia may feel like a fluttering, pounding or racing heartbeat. Some heart arrhythmias are harmless. Others may cause life-threatening symptoms. There are times when it is OK to have a fast or slow heartbeat. For example, the heart may beat faster with exercise or slow down during sleep.
Heart arrhythmia - Diagnosis and treatment - Mayo Clinic
2023年10月13日 · To diagnose a heart arrhythmia, a healthcare professional examines you and asks about your medical history and symptoms. You may have tests to check your heart and to look for health conditions that can cause an irregular heartbeat.
Heart disease - Symptoms and causes - Mayo Clinic
2024年8月13日 · Heart disease symptoms caused by irregular heartbeats, called arrhythmias. The heart may beat too quickly, too slowly or irregularly. Heart arrhythmia symptoms can include: Chest pain or discomfort. Dizziness. Fainting or almost fainting. Fluttering in the chest. Lightheadedness. Racing heartbeat. Shortness of breath. Slow heartbeat. Heart ...
Ventricular tachycardia - Symptoms and causes - Mayo Clinic
2024年3月6日 · Symptoms. When the heart beats too fast, it may not send enough blood to the rest of the body. So the organs and tissues may not get enough oxygen. Symptoms of ventricular tachycardia are due to a lack of oxygen. They may include: Chest pain, called angina. Dizziness. Pounding heartbeat, called palpitations. Lightheadedness. Shortness of breath.
Atrial fibrillation - Symptoms and causes - Mayo Clinic
2024年3月8日 · Atrial fibrillation (AFib) is an irregular and often very rapid heart rhythm. An irregular heart rhythm is called an arrhythmia. AFib can lead to blood clots in the heart. The condition also increases the risk of stroke, heart failure and other heart-related complications.
Tachycardia - Symptoms and causes - Mayo Clinic
2023年12月15日 · Most heart conditions can lead to different forms of tachycardia. Irregular heart rhythms, called arrhythmias, are one cause. An example of an irregular heart rhythm is atrial fibrillation (AFib). Other things that may lead to tachycardia include: Fever.
Ventricular fibrillation - Symptoms & causes - Mayo Clinic
2022年10月28日 · Ventricular fibrillation is a type of irregular heart rhythm (arrhythmia). During ventricular fibrillation, the lower heart chambers contract in a very rapid and uncoordinated manner. As a result, the heart doesn't pump blood to the rest of the body.
Supraventricular tachycardia - Symptoms and causes - Mayo Clinic
2024年3月7日 · Symptoms. The main symptom of supraventricular tachycardia (SVT) is a very fast heartbeat that may last for a few minutes to a few days. The heart beats 100 or more times a minute. Usually during SVT, the heart beats 150 to 220 times a minute. The fast heartbeat may come and go suddenly.
Atrial fibrillation - Diagnosis and treatment - Mayo Clinic
2024年3月8日 · A fast, pounding heartbeat could be due to AFib, a type of heart rhythm problem. Know the warning signs and when treatment is needed.
Heart palpitations - Symptoms & causes - Mayo Clinic
2022年3月11日 · 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 require treatment.