Fatigue can signal many things. Here are some tips to help you decipher why you're wiped out and to regain your energy.
Shortness of breath can be frightening. Most of the time, a heart or lung condition is the cause.
Tachycardia, a rapid heart rate, is caused by an abnormality in your heart's electrical impulses. Tachycardia can cause serious complications, including sudden cardiac arrest.
Tests and diagnosis
Echocardiogram allows your doctor to see your heart in motion. Here's what you need to know about the test.
Nov. 08, 2012
- Single-ventricle defects. American Heart Association. http://www.heart.org/HEARTORG/Conditions/CongenitalHeartDefects/AboutCongenitalHeartDefects/Single-Ventricle-Defects_UCM_307037_Article.jsp. Accessed Sept. 13, 2012.
- Hay WW, et al.. Current Diagnosis & Treatment: Pediatrics. 20th ed. New York, N.Y.: The McGraw-Hill Companies; 2011. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=14. Accessed Sept. 13, 2012.
- Congenital heart defects. March of Dimes. http://www.marchofdimes.com/baby/birthdefects_congenitalheart.html. Accessed Sept. 9, 2012.
- Tricuspid atresia. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merckmanuals.com/professional/print/pediatrics/congenital_cardiovascular_anomalies/tricuspid_atresia.html. Accessed Sept. 13, 2012.
- Ohuchi H, et al. Long-term serial aerobic exercise capacity and hemodynamic properties in clinically and hemodynamically good, "excellent," Fontan survivors. Circulation Journal. 2012;76:195.
- Berg C, et al. Prenatal diagnosis of tricuspid atresia: Intrauterine course and outcome. Ultrasound in Obstetrics and Gynecology. 2010;35:183.
- Crawford MH, ed. Current Diagnosis & Treatment: Cardiology. 3rd ed. New York, N.Y.: The McGraw-Hill Companies; 2009. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=8. Accessed Sept. 13, 2012.
- Infective endocarditis. American Heart Association. http://www.heart.org/HEARTORG/Conditions/CongenitalHeartDefects/TheImpactofCongenitalHeartDefects/Infective-Endocarditis_UCM_307108_Article.jsp. Accessed Sept. 9, 2012.
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