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if you had one or more heart attacks , it could damage one or more of your heart tissue pacemakers...

Or you could have an electrolyte imbalance..

or maybe a thyroid problem?

or from damage to heart from years of alcoholism?

Or taking pills that boost the heart rate?

or a heart murmur?

or too much caffeine?

or a weak heart due to heredity, virus or old age?

or something else?

here is a link?
http://www.medicinenet.com/arrhythmia_irregular_heartbeat/article.htm

2007-02-28 17:58:40 · answer #1 · answered by Anonymous · 0 0

Heartbeats can be too slow, known as bradycardia. A heartbeat of less than 60 beats per minute can cause fatigue, dizziness, light-headedness or fainting.
A heart beat which is too fast, tachycardia, can produce palpitations and is also responsible for dizziness, light-headedness and fainting. Rapid heart-beating in the ventricles can be life threatening.
Ventricular fibrillation, where the lower chambers quiver and the heart cannot pump any blood, leads to collapse and sudden death unless medical treatment is immediately provided.
In atrial fibrillation, where the two upper chambers of the heart - the atria - quiver instead of beating properly, blood is not properly pumped out of the heart. As a result it may form clots and if the clot becomes lodged in an artery in the brain, a stroke may result.
Arrhythmia is mostly treated by drugs and in certain cases by artificial pacemakers and defibrillators.

2007-03-01 02:18:19 · answer #2 · answered by gangadharan nair 7 · 1 0

Many things can case this. In my case I had plaq build up in the artery's and laid there and watched the doctor put in two st-ens. Also Micral Valve Prolapse ( not sure spelled correctly) can cause this and Tachycardia Fibrillation. I know I have another problem because my heart flutters and quivers. I have a Specialist Cardiologists that tries to keep me on track.
I will see him on 3/13. I had irregular heart beats for years, they did kinds of test, because I was blacking out while driving(I quit)come to find out I was borne with an extra chamber back behind the wall of my heart and the blood flow was trying to re-route.. It took six long hours of laying on that ice cold table and I woke up while they were doing the surgery, horrible pain. They knocked me out again.
My heart rate was 150 beats per minute, the EMS told me it
went as high as 250 beats per minute, of course I did not know I was unconscious. The heart surgery did not bother me, but lying on that cold table for six hours created so much Arthritis pain. Don't ignore this irregular beat my mother did and she died totally unexpected.

2007-03-01 03:05:38 · answer #3 · answered by NJ 6 · 1 0

About 13 years ago, I was diagnosed with SVT or Super ventricular tachycardia. My heart was beating so fast, that I could not get a hear rate on myself. I felt dizzy, light headed and scared. My mother took me to my doctors and the doctor finally got a heart rate of 210/140. He called an ambulance right away. Before the ambulance got there, my sister came up to the doctors office and I told her I loved her and to tell my children that I loved them very much. I thought I was going to die. The pain started building and I felt like I had 1000 bricks on my chest. The ambulance went as fast as they could, a code ?, whichever was the most serious. I kept telling them I could not breath and they kept feeding me nitro pills, which were not working. It all worked out where I ended up having to have a heart ablation, twice, where they go up into your groin to your heart, with 6 different catheters, bring your heart rate up to heart attack rate and burn out the extra heart rate. Please - DO NOT ignore these symptoms. You could lose your life!

2007-03-01 03:29:32 · answer #4 · answered by country girl 006 4 · 1 0

all of us have irregular heart beats at least once a day.
other causes may be drugs, age, congenital weakness, thyroid, blood chemistry imbalances, stress..........
the best solution to abnormal heart beats is to see a doctor. left untreated, they can lead to stroke and heart attack (and death).

2007-03-01 01:55:19 · answer #5 · answered by KitKat 7 · 1 0

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