Complete Introduction About Bradycardia

What is Bradycardia

Brady cardia is an abnormally slow heart rate with a rate of fewer than 60 minutes per minute. A typical heartbeat is 60 to 100 beats per minute.

Here’s what happens during a normal heartbeat: The electrical signal that triggers a heartbeat comes from the sinus node of the heart, a natural pacemaker located in the upper part of the right atrium. From the node of the bone, the heartbeat refers to the atrioventricular (AV) node located between the atria, and then to the ligament of the (cleft “spine) – one of the muscle fibers in the heart located between the ventricles. Series. – The muscles of the ventricles. This causes a contraction of the ventricles and causes a heartbeat.

Brady cardia, even at least 50 beats per minute, can be common in athletes and physically active people. In these people, regular exercise improves the ability of the heart to pump blood efficiently, so less contraction of the heart is needed to supply the body’s needs.

In other cases, bradycardia may be a form of cardiac arrhythmia, which is abnormal heart rate. Cardiac arrhythmias may be due to difficulty in digestion of the bones, or they may be related to a disturbance in the passage of heartbeat signals through the A-V node and its bundle. Bradycardia can occur with certain drugs, such as digoxin (linuxin) and toxic levels of the drug. Also, bradycardia sometimes has side effects from certain medications, including propanolol (indral), intinol (tenormin), metoprolol (Topol-XL), sotanol (Betapase), verapamil (Callan, isoprotein, virilion) and heart. , Delacor-XR). Bradycardia is also found in some people who suffer from certain medical illnesses that are not related to the heart, such as:

  • Abnormally low levels of thyroid hormone (hypothyroidism)
  • Abnormal body temperature (hypothermia)
  • Blood potassium levels
  • Lyme disease
  • Typhoid fever


Brady cardia can cause dizziness, weakness, loss of energy or faint spells.

If bradycardia is caused by a medical illness, there will be additional symptoms that are specific to the disease. For example, people whose bradycardia is caused by severe hypothyroidism may also have constipation, muscle aches, weight gain (often accompanied by poor appetite), very dry skin, thinning hair, and cold temperatures. May have unusual sensitivity and other related symptoms. Low levels of thyroid hormone.


our doctor will ask you about cardiovascular heart history, cardiac arrhythmias, and unconscious spells. It will also review your current symptoms and your personal medical history, including your use of medicines, including bradycardia.

During a physical examination, your doctor will examine your heart rate and rhythm and your pulse. You may be asked to do some sit-ups or other exercises so that your doctor can see if your heart rate usually increases when asked to do more work. Your doctor will also examine the physical signs of thyroid abnormalities, including an enlarged thyroid gland, very dry skin, and thin and dry hair.

To further evaluate your bradycardia, your doctor will order an electrocardiogram (EKG). However, because some forms of bradycardia continue to form, a one-time office EKG may be normal. If this is the case, a test can be performed called ambulatory electrocardiography. During this test, the patient wears a portable EKG machine, called a Holter Monitor, usually for 24 hours. If your symptoms are very rare, you can wear a monitor for longer. When your symptoms are detected you will be taught to press a button to record your EKG reading.

Depending on the results of your physical examination, other tests may also be necessary to examine the medical illnesses that cause bradycardia. For example, if you have symptoms and physical symptoms of hypothyroidism, your doctor may order a blood test to measure thyroid hormones and TSH levels, a thyroid-stimulating pituitary gland hormone. ۔ Your doctor may also give blood tests for cholesterol and certain liver enzymes, which are often elevated in people with hypothyroidism.

Expected duration

How long Brady Cardia runs depends on it. For example, normal bradycardia in a trained athlete will persist as long as the athlete maintains his or her usual workout. When bradycardia is found as a side effect of the medication, it usually ends as soon as the drug that stimulates bradycardia is used by the body or is excreted in the urine. Following thyroid hormone treatment, hypothyroidism will cause bradycardia to go away faster. As a result of cardiac arrhythmias, some forms of bradycardia may be corrected by a permanent pacemaker.

How to Avoid?

There are no general guidelines to prevent all forms of bradycardia. When bradycardia occurs as a side effect of medicines, this problem can be prevented by switching the medication or reducing its dose.

When to Call a Expert

Call your doctor if your pulse is less than 60 beats per minute. This is especially important if you are dizzy, weak, lack of energy, or faint.


In well-trained athletes with normal bradycardia, a gradual heartbeat is often a sign of overall good health. In other people suffering from Brady cardia, the underlying aspect of the approach depends. For example, the diagnosis is generally good in people with hypothyroidism, since the treatment of thyroid hormones can relieve bradycardia and other symptoms associated with low levels of hormone.
In some elderly patients, hormone intake may need to be increased slowly over several weeks to avoid suppressing the heart. At one time, people with third-degree AV block diagnosis were poor, with 50% of patients dying within a year of diagnosis. However, the availability of permanent high-speed manufacturers has improved the diagnosis of many people with cardiac arrhythmias.

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