When your heart's rate is too rapid, it may not effectively pump blood to the rest of your body, depriving your organs and tissues of oxygen. This can cause these tachycardia-related signs and symptoms:
- Shortness of breath
- Rapid pulse rate
- Heart palpitations — a racing, uncomfortable or irregular heartbeat or a sensation of "flopping" in the chest
- Chest pain
- Fainting (syncope)
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.
When to see a doctor
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 experiences any tachycardia symptoms.
If you faint, have difficulty breathing or have chest pain lasting more than a few minutes, get emergency care, or call 911 or your local emergency number. Seek emergency care for anyone experiencing these symptoms.
May 06, 2014
- Ganz LI. Sinus tachycardia. http://www.uptodate.com/home. Accessed Dec. 27, 2013.
- Longo DL, et al. Harrison's Online. 18th ed. New York, N.Y.: The McGraw-Hill Companies; 2012. http://accessmedicine.mhmedical.com/content.aspx?bookid=331§ionid=40727006. Accessed Dec. 27, 2013.
- Stone CK, et al. Current Diagnosis & Treatment: Emergency Medicine. 7th ed. New York, N.Y.: The McGraw-Hill Companies; 2011. http://accessmedicine.mhmedical.com/content.aspx?bookid=385§ionid=40357251&jumpsectionID=40365877. Accessed Dec. 27, 2013.
- What is an arrhythmia? National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/health-topics/topics/arr/. Accessed Dec. 27, 2013.
- Overview of arrhythmias. The Merck Manuals: The Merck Manual for Health Care Professionals. http://www.merckmanuals.com/professional/cardiovascular_disorders/arrhythmias_and_conduction_disorders/overview_of_arrhythmias.html?qt=arrhythmia&alt=sh. Accessed Jan. 6, 2014.
- What is catheter ablation? National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/health-topics/topics/ablation/. Accessed Jan. 7, 2014.
- Prevention & treatment of arrhythmia. American Heart Association. http://www.heart.org/HEARTORG/Conditions/Arrhythmia/PreventionTreatmentofArrhythmia/Prevention-Treatment-of-Arrhythmia_UCM_002026_Article.jsp. Accessed Jan. 8, 2014.
- Riggin EA. Decision Support System. Mayo Clinic, Rochester, Minn. Dec. 5, 2013.