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Atrial Fibulation when vomiting
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Atrial Fibulation when vomiting


  Dear Doctors,
       To be brief and to the point..  In the past 12 years, I got sick 6 times with flu like symptoms (vomiting). Because of the vomiting My heart goes into Atrial Fibrillation. I go to the hospital and they admit me. After receiving medication my heart returns to a normal sinus rhythm.  This usually happens after 10 or so hours.  Can you tell me if there is a reason for this happening and should I be doing something for it.
    Thank you,  Richard Galante  ***@****
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Dear Richard,
Thank you for your question.
Q: Can you tell me if there is a reason for this happening and should I be doing something for it.?
A: There are many causes of atrial fibrillation.  The most common causes are hypertension (high blood pressure) and underlying heart problems (valve problems and coronary artery blockages).  Many other less common things also cause afib such as overactive thyroid, infection, alcohol and other illnesses.  In some cases no underlying cause can be determined and the term "lone afib" is used.  In your case the vomiting increases vagal tone (nerve leading to the heart) and creates the environment for the atrium to fibrillate.  I'm not sure it's worth taking chronic medication for these infrequent episode but I would discuss this with your doctor.

Atrial fibrillation
Definition:
A disorder of heart rate and rhythm in which the upper heart chambers (atria) are stimulated to contract in a very rapid and/or disorganized manner; this usually also affects contraction of the ventricles.
Causes, incidence, and risk factors:
Arrhythmias are caused by a disruption of the normal functioning of the electrical conduction system of the heart. Normally, the atria and ventricles contract in a coordinated manner. In atrial fibrillation and flutter, the atria are stimulated to contract very quickly. This results in ineffective and uncoordinated contraction of the atria.
The impulses may be transmitted to the ventricles in an irregular fashion, or only some of the impulses may be transmitted. This causes the ventricles to beat more rapidly than normal, resulting in a rapid or irregular pulse. The ventricles may fail to pump enough blood to meet the needs of the body.
Causes of atrial fibrillation and flutter include dysfunction of the sinus node (the "natural pacemaker" of the heart) and a number of heart and lung disorders including coronary artery disease, rheumatic heart disease, mitral valve disorders, pericarditis, and others. Hyperthyroidism, hypertension, and other diseases can cause arrhythmias, as can recent heavy alcohol use (binge drinking). Some cases have no identifiable cause. Atrial flutter is most often associated with a heart attack (myocardial infarction) or surgery on the heart.
Atrial fibrillation or flutter affects about 5 out of 1000 people. It can affect either sex. Atrial fibrillation is very common in the elderly, but it can occur in persons of any age.
Prevention:
Follow the health care provider's recommendations for the treatment of underlying disorders. Avoid binge drinking.
Symptoms:
     sensation of feeling heart beat (palpitations)
     pulse may feel rapid, racing, pounding, fluttering,
     pulse may feel regular or irregular
     dizziness, lightheadedness
     fainting
     confusion
     fatigue
     shortness of breath
     breathing difficulty, lying down
     sensation of tightness in the chest
Note: Symptoms may begin and/or stop suddenly.
Signs and tests:
Listening with a stethoscope (auscultation) of the heart shows a rapid or irregular rhythm. The pulse may feel rapid or irregular. The normal heart rate is 60 to 100, but in atrial fibrillation/flutter
the heart rate may be 100 to 175. Blood pressure may be normal or low.
An ECG shows atrial fibrillation or atrial flutter. Continuous ambulatory cardiac monitoring--Holter monitor (24 hour test)-- may be necessary because the condition is often sporadic (sudden beginning and ending of episodes of the arrhythmia).
Tests to determine the cause may include:
     an echocardiogram
     a coronary angiography (rarely)
     an exercise treadmill ECG

Treatment:
Treatment varies depending on the cause of the atrial fibrillation or flutter. Medication may include digitalis or other medications that slow the heart beat or that slow conduction of the impulse
to the ventricles.
Electrical cardioversion may be required to convert the arrhythmia to normal (sinus) rhythm.
Expectations (prognosis):
The disorder is usually controllable with treatment. Atrial fibrillation may become a chronic condition. Atrial flutter is usually a short-term problem.
Complications:
     incomplete emptying of the atria which can reduce the amount of blood the heart can pump
     emboli to the brain (stroke) or elsewhere--rare

Calling your health care provider:
Call your health care provider if symptoms indicate atrial
fibrillation or flutter may be present.
The links below are good sources of information about atrial fibrillation.
http://www.med-edu.com/patient/arrhythmia/atrial-fib.html
http://www.americanheart.org/Heart_and_Stroke_A_Z_Guide/afib.html
http://www.merck.com/!!vDXoe16kTvDXpz08Of/pubs/mmanual_home/chapt16.htm
I hope you find this information useful.  Information provided in the heart forum is for general purposes only.  Only your physician can provide specific diagnoses and therapies.  Please feel free to write back with additional questions.
If you would like to make an appointment at the Cleveland Clinic Heart Center, please call 1-800-CCF-CARE or inquire online by using the Heart Center website at www.ccf.org/heartcenter.  The Heart Center website contains a directory of the cardiology staff that can be used to select the physician best suited to address your cardiac problem.

AFIB




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