Effects of Atrial Fibrillation On The Body
Compiled by: Francisco C. Tang, MD a.k.a. Huang Nung Yang, MD
Written by: Ann Pietrangelo
Reviewed by George Krucik, MD
THE EFFECTS OF
ATRIAL FIBRILLATION
ON THE BODY
Afib affects the upper chambers of the heart, called the atria. It’s an electrical disorder that causes rapid electrical signals in the heart that may reach hundreds of beats per minute. The rapid-fire signals interfere with the ability of the upper chambers
to contract in an organized way.
to contract in an organized way.
This leads to decreased pumping action and passive blood flow. Blood can even pool within the heart. Some people with afib have no symptoms, while others experience a wide range of symptoms. Afib increases the risk of heart-related disorders and stroke.
Blood Clots
Heart Problems
Brain Stroke
A Lungful of Afib
Blood Vessels
Afib in the Pulse
Verbal Warning Sign
Atrial fibrillation (also known as afib, or AF) is an electrical disorder of the upper chambers of the heart. It increases risk of heart-related problems and stroke. More than two million Americans have afib, according to the Cleveland Clinic.
The Effects of Afib on the Body
Afib affects the upper chambers of the heart, called the atria. It’s an electrical disorder that causes rapid electrical signals in the heart that may reach hundreds of beats per minute. The rapid-fire signals interfere with the ability of the upper chambers to contract in an organized way.
This leads to decreased pumping action and passive blood flow. Blood can even pool within the heart. Some people with afib have no symptoms, while others experience a wide range of symptoms. Afib increases the risk of heart-related disorders and stroke.
Circulatory System
When the heart’s electrical system is out of whack, the heart chambers lose their rhythm. A common symptom of afib is the sensation that your heart is flopping around inside your chest, or simply beating irregularly (palpitations). You may become hyper-aware of your own heartbeat.
Over time, afib can cause the heart to weaken and malfunction. The heart’s ineffective contractions cause blood to pool in the atria. This can increase the risk of clotting. As a result, you may experience shortness of breath, low blood pressure, and chest pain. During an episode of afib, your pulse may feel like its racing, beating too slowly, or beating irregularly.
Heart failure occurs when the heart loses its ability to circulate enough blood throughout the body.
Central Nervous System
Afib increases the risk of stroke. When the heart fails to contract properly, blood tends to pool in the atria. This increases the risk of forming a clot. When the heart pumps, the clot can travel to the brain, where it blocks the blood supply and causes an embolic stroke.
Early warning signs of stroke include severe headache and slurred speech. If you have afib, your risk of stroke increases as you age. Other additional risk factors for stroke include diabetes, high blood pressure, or history of other heart problems or previous stroke. Blood thinners and other medications can lower that risk.
Respiratory System
The lungs require a steady supply of blood in order to function properly. Irregular pumping action of the heart can also cause fluid to back up in the lungs. Symptoms include shortness of breath, difficulty performing physical activities, and fatigue.General Health
Some people with afib may have a build-up of fluid in the legs, ankles, and feet. Other symptoms include weight gain, lightheadedness, and a general sense of malaise. Some patients report irritability and exertion during previously routine activities.
Article Sources:
- Atrial fibrillation or flutter. (2013, May 3). MedlinePlus, National Institutes of Health. Retrieved December 12, 2013 fromhttp://www.nlm.nih.gov/medlineplus/ency/article/000184.htm
- Drs. Lindsay, Van Wagoner, and Gillinov. (2011, June 13). Atrial fibrillation.Cleveland Clinic. Retrieved December 12, 2013 fromhttp://my.clevelandclinic.org/heart/webchat/1271_atrial-fibrillation.aspx
- Atrial fibrillation. (n.d.). Stanford Hospital & Clinic. Retrieved December 12, 2013 fromhttp://stanfordhospital.org/cardiovascularhealth/arrhythmia/conditions/atrial-fibrillation.html
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