Description, Causes and Risk Factors:
Normal heart rate is between 60 and 100 beats per minute. Arrhythmia is a medical term that refers to a heart rate that is outside of this normal range. An arrhythmia that is too slow is called a Bradyarrhythmia.
A bradyarrhythmia is an abnormally slow heart rhythm, usually due to disease in the heart's conduction system. Bradyarrhythmias commonly cause weakness, lightheadedness and dizziness, and can lead to loss of consciousness if the heart rate is extremely slow. Bradyarrhythmias are most often seen in the elderly.
The two most common causes of bradyarrhythmia are diseases of the sinoatrial (SA) node (sick sinus syndrome), which is the heart's natural pacemaker or other problems with the heart's electrical conduction system (heart block). These diseases can cause the heart to beat too slowly all the time or occasionally. In either case, the heart may not pump enough blood to meet the body's needs. As the heart rate declines, there is not sufficient blood flow to the brain, causing feelings of lightheadedness, and sometimes fainting.
Common risk factors:
Valvular heart disease.
Smoking & tobacco use.
Men and women age 65 and older are most likely to develop a bradyarrhythmia.
Dizziness or lightheadedness.
Irregular heart beat.
Shortness of breath.
Fainting or loss of consciousness.
Your doctor may need to test your heart function. This can be done with:
Electrocardiogram (ECG/EKG): a test that records the heart's activity by measuring electrical currents through the heart muscle.
Echocardiogram: a test that uses high-frequency sound waves (ultrasound) to examine the size, shape, and motion of the heart.
Holter monitor or event monitor: a portable, continuous heart rhythm monitor that you wear as you perform normal daily activities.
Exercise stress test: a test that records the heart's electrical activity during increased physical activity.
Nuclear scanning: radioactive material is injected into a vein and observed as it is distributed through the heart muscle to look for coronary artery disease.
Coronary angiography: X-rays taken after a dye is injected into the arteries; this allows the doctor to look for abnormalities in the coronary arteries of the heart.
Blood tests: to look for certain abnormalities that may explain the bradyarrhythmia (e.g., electrolytes, glucose, thyroid function, and drug levels).
The goal of treatment is to raise your heart rate so your body gets the blood it needs. If severe bradyarrhythmia is not treated, it can lead to serious problems. These may include fainting and injuries from fainting, as well as seizures and death.
Treatment may include:
Diagnosing and treating any underlying conditions.
Medication to temporarily increase your heart rate.
An artificial pacemaker to establish and maintain a normal heart rhythm.
Stopping any medications that slow the heart rate.
Eat a low-fat, low-salt diet.
Get regular exercise. Your doctor can tell you what level of exercise is safe for you.
Quit smoking, if you smoke.
Control your cholesterol and blood pressure.
NOTE: The above information is educational purpose. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition.
DISCLAIMER: This information should not substitute for seeking responsible, professional medical care.
According to a Spanish research, led by Dr. Victoria Moreno-Arribas from the Spanish National Research Council in Madrid, drinking red wine may protect teeth by destroying bacteria causing cavities and gum disease. The researchers completed an experiment where they...
Numerous studies conducted earlier showed that regular exercises have a positive effect on physical and mental health. The new work of American scientists confirms this. They believe that running five kilometers once a day is useful for the hippocampus (the brain...
Quiz about this article
0 of 2 questions completed
Please answer on few questions to make our service more useful
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
0 of 2 questions answered correctly
Time has elapsed
You have reached 0 of 0 points, (0)
Question 1 of 2
Was this article useful for you?Correct
Thanks for your feedback!Incorrect
Thanks for your feedback!
Question 2 of 2
What else information about this disease you want to know ?Correct
Thanks for feedback!Incorrect
Thanks for feedback!
Many people spontaneously decide starting to do sport, while others weigh all the pros and cons for a log time. But almost all of them make the same mistakes, listening to the advice of non experts. There are 10 anti-tips for those who want to do plan to do some sport...read more
Spring is not far off and very soon you will see many people riding a bike. It's worth to join them and now we will give you the 8 reasons why. Weight control Scientists of the University of Surrey (England) found that it's enough riding a bike for an hour, and, not...read more
We all want to get in shape and keep fit. But not everyone has time for visiting the gym. Give up the elevator. Give up lifts and climb the stairs. At work, at home, at the mall. This simple advice is a great benefit if you follow it daily. Climbing the stairs...read more