Heart rate: What's normal? - Mayo Clinic
2022年10月8日 · A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Generally, a lower heart rate at rest implies more efficient heart function and better …
Heart arrhythmia - Symptoms and causes - Mayo Clinic
2023年10月13日 · A heart-healthy lifestyle can help prevent heart damage that can trigger some heart arrhythmias. Types. In general, heart arrhythmias are grouped by the speed of the heart …
Heart palpitations - Symptoms & causes - Mayo Clinic
2022年3月11日 · If the heart beats rapidly, blood pressure can drop, causing the person to faint. This is more likely in those with a heart problem, such as congenital heart disease or certain …
Heart arrhythmia - Diagnosis and treatment - Mayo Clinic
2023年10月13日 · Heart arrhythmia treatment is usually only needed if the irregular heartbeat causes significant symptoms or puts you at risk of more-serious heart problems. Treatment for …
Tachycardia - Symptoms and causes - Mayo Clinic
2023年12月15日 · Tachycardia (tak-ih-KAHR-dee-uh) is the medical term for a heart rate over 100 beats a minute. Many types of irregular heart rhythms, called arrhythmias, can cause …
Premature ventricular contractions (PVCs) - Mayo Clinic
2022年4月30日 · These extra beats disrupt the regular heart rhythm, sometimes causing a sensation of a fluttering or a skipped beat in the chest. Premature ventricular contractions are …
Atrial tachycardia - Symptoms and causes - Mayo Clinic
During an atrial tachycardia episode, the heart beats more than 100 times a minute. Then it returns to a heart rate of around 60 to 80 beats a minute. An episode may start slowly, or it …
Bradycardia - Symptoms and causes - Mayo Clinic
2022年5月7日 · Bradycardia (brad-e-KAHR-dee-uh) is a slow heart rate. The hearts of adults at rest usually beat between 60 and 100 times a minute. If you have bradycardia, your heart …
Ventricular tachycardia - Symptoms and causes - Mayo Clinic
2024年3月6日 · In a healthy heart, this heart signaling process usually goes smoothly, resulting in a resting heart rate of 60 to 100 beats a minute. But some things can change how electrical …
Supraventricular tachycardia - Symptoms and causes - Mayo Clinic
2024年3月7日 · In a healthy heart, this heart signaling process usually goes smoothly. The heart usually beats about 60 to 100 times a minute at rest. But in SVT, the heart beats faster than …