Heart block affects heart rhythms and slows the heartbeat. Learn more about it here. If there is no clear underlying cause, it may take some time to find a suitable treatment option.
There are several ways to slow a rapid heartbeat during an episode. The following sections will look at these in more detail. Some techniques, or maneuvers , can affect this nerve and help slow the heartbeat. Such techniques include:. A healthcare professional may also apply gentle pressure to the eyeballs while the person has their eyes closed.
A doctor can administer antiarrhythmic drugs either orally or intravenously. These drugs aim to restore a normal heart rhythm and control the heart rate.
Some examples of antiarrhythmic drugs include amiodarone Cordarone , sotalol Betapace , and mexiletine Mexitil. This affects the electrical impulses in the heart and may restore a normal rhythm.
Some measures can help prevent and manage tachycardia. The following sections will discuss these measures in more detail. Medications that can help people manage tachycardia include:. An electrophysiologist can insert catheters into the heart through the blood vessels. Electrodes at the ends of the catheter can ablate, or damage, small sections of the heart that are responsible for the abnormal heartbeat.
Sometimes, a doctor will recommend surgery to make repairs or changes that can help reduce the risk of tachycardia. They will only do this if other therapies have not worked or if the person has another heart condition. Depending on the type and cause of tachycardia, the following symptoms may occur:.
However, many people have no symptoms and only find out that they have tachycardia during a routine examination. The following sections will outline some common types of tachycardia. In this type, the heart beats faster than usual, but the rhythm is regular, and the impulse comes from the sinoatrial node. Learn more about sinus tachycardia here. Atrial or supraventricular tachycardia is an accelerated heart rhythm that starts in the upper chambers of the heart. It is the most common heart rhythm problem in children and young people.
Many people first experience it between the ages of 25 and 40 years. A normal heart rate is usually stated as 60 to beats per minute. Slower than 60 is bradycardia "slow heart" ; faster than is tachycardia "fast heart".
But some experts believe that an ideal resting heart rate is closer to 50 to Regardless of what is considered normal, it's important to recognize that a healthy heart rate will vary depending on the situation. Here's how to determine your heart rate. First, find your pulse. The side of the neck or front of the wrist are the easiest spots.
Atrial fibrillation may be temporary, but some episodes won't end unless treated. Atrial fibrillation is the most common type of tachycardia. Atrial flutter. In atrial flutter, the heart's atria beat very fast but at a regular rate. The fast rate results in weak contractions of the atria. Atrial flutter is caused by irregular circuitry within the atria. Episodes of atrial flutter may go away themselves or may require treatment. People who have atrial flutter also often have atrial fibrillation at other times.
Ventricular tachycardia. Ventricular tachycardia is a rapid heart rate that starts with abnormal electrical signals in the lower chambers of the heart ventricles. The rapid heart rate doesn't allow the ventricles to fill and contract efficiently to pump enough blood to the body. Ventricular tachycardia episodes may be brief and last only a couple of seconds without causing harm. But episodes lasting more than a few seconds can become a life-threatening medical emergency.
Ventricular fibrillation. Ventricular fibrillation occurs when rapid, chaotic electrical impulses cause the lower heart chambers ventricles to quiver instead of pumping necessary blood to the body. This can be deadly if the heart isn't restored to a normal rhythm within minutes with an electric shock to the heart defibrillation.
Ventricular fibrillation may occur during or after a heart attack. Most people who have ventricular fibrillation have an underlying heart disease or have experienced serious trauma, such as being struck by lightning.
Mayo Clinic electrophysiologist Fred Kusumoto, M. When your heart is beating too fast, it may not pump enough blood to the rest of your body. This can starve your organs and tissues of oxygen and can cause the following tachycardia-related signs and symptoms:. Some people with tachycardia have no symptoms, and the condition is only discovered during a physical examination or with a heart-monitoring test called an electrocardiogram.
A number of conditions can cause a rapid heart rate and tachycardia symptoms. It's important to get a prompt, accurate diagnosis and appropriate care. See your doctor if you or your child has any tachycardia symptoms. Something went wrong on our side, please try again.
Show references Kenney WL, et al. Cardiorespiratory responses to acute exercise. In: Physiology of Sport and Exercise. Champaign, Ill.
Know your target heart rates for exercise, losing weight and health. American Heart Association. Accessed July 31, Sauer WH. Normal sinus rhythm and sinus arrhythmia. Fatisson J, et al. Influence diagram of physiological and environmental factors affecting heart rate variability: An extended literature overview.
Heart International. Laskowski ER expert opinion. Mayo Clinic, Rochester, Minn. Riebe D, et al. Client fitness assessments. Philadelphia, Pa. See also Slide show: 5 smart exercise choices for psoriatic arthritis 6 tips for an active getaway you'll remember Accentuate the positive to make lasting health changes An appointment to exercise?
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