is a rapid heartbeat dangerous?
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Tachycardia can be dangerous, depending on its underlying cause and on how hard the heart has to work. Some people with tachycardia may have no symptoms or complications. However, tachycardia significantly increases the risk of stroke, sudden cardiac arrest, and death.
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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: Shortness of breath. Lightheadedness.
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Generally speaking, for adults, a heart rate of more than 100 beats per minute (BPM) is considered too fast.
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It may feel like a fluttering or racing heart. Most people with rare episodes of supraventricular tachycardia live healthy lives without restrictions or interventions. For others, treatment and lifestyle changes can often control or eliminate rapid heartbeats.
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You can have a bout of SVT even when you're not stressed out or exercising hard. When your heart beats too fast, it can't pump out enough blood. You might feel tired, short of breath, or dizzy as a result of this condition that starts in the upper chambers of your heart.
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Most sudden cardiac deaths are caused by abnormal heart rhythms called arrhythmias. The most common life-threatening arrhythmia is ventricular fibrillation, which is an erratic, disorganized firing of impulses from the ventricles (the heart's lower chambers).
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Call your doctor if you experience frequent palpitations or if you have risk factors for heart disease such as high cholesterol, high blood pressure or diabetes. Palpitations are characterized by a racing, rapid, pounding heartbeat, often unpleasant and irregular.
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Numerous studies have shown that higher resting heart rate is associated with increased risk of cardiovascular events and death in men and women, Fonarow said. However, whether higher heart rate is a marker of poor physical fitness or heart disease isn't clear, he added.
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If your heart is beating more than 90 times per minute, it may be struggling. You could be having a panic attack, but shortness of breath plus a rapid heart rate may be a sign of almost any significant heart or lung disease.
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“As the heart weakens, irregular heartbeats can develop.” Coronary artery disease can cause dangerous arrhythmias like atrial fibrillation, or AFib. It's a rapid, quivering heartbeat that can lead to heart palpitations, blood clots, heart attack and stroke.
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Stress, exercise, medication or, rarely, a medical condition can trigger them. Although heart palpitations can be worrisome, they're usually harmless. In rare cases, they can be a symptom of a more serious heart condition, such as an irregular heartbeat (arrhythmia), that might require treatment.
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Cardiac arrhythmia: when the heart beats strongly This disorder, whose most common form is atrial fibrillation, causes an irregular, sometimes rapid heartbeat and makes the heart less effective at pumping the blood. Other risk factors for this disease include congenital heart defects, hypertension, and stress.
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In fact, it can be dangerous to treat hypertensive urgency or severe symptomatic hypertension in the same way as a true hypertensive emergency, because lowering blood pressure too rapidly can trigger transient ischemic attack or stroke, said John S.
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Rapid Heart Rate The stimulatory effects of high caffeine intake may cause your heart to beat faster. It may also lead to altered heartbeat rhythm, called atrial fibrillation, which has been reported in young people who consumed energy drinks containing extremely high doses of caffeine ( 39 ).
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Tell your doctor immediately if any of these unlikely but serious side effects occur: fast/irregular/pounding heartbeat, mental/mood changes (e.g., agitation, uncontrolled anger, hallucinations, nervousness), uncontrolled muscle movements, change in sexual ability/interest.
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A rapid or fast heartbeat is when your heart is beating faster than normal. A normal heart rate is 60 to 100 beats per minute. Tachycardia is considered a heart rate of greater than 100 beats per minute. If you are exercising, or performing any kind of activity, your heart will normally beat faster.
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Lightheadedness. Rapid pulse rate. Heart palpitations — a racing, uncomfortable or irregular heartbeat or a sensation of "flopping" in the chest. Chest pain.