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Doctor insights on: Bradycardia Useful

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When is bradycardia useful for the body?

When is bradycardia useful for the body?

Angina pectoris: Most coronary blood flow occurs during diastole (when the heart is at rest). For patients with blocked arteries and chest pain, slowing the heart rate prolongs diastole allowing more time for blood to get to the heart. Beta blockers are used to slow the heart rate and are effective in controlling chest pain. ...Read more

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Dr. Kerrie Pinkney
319 doctors shared insights

Slow Heart Rate (Definition)

Slow heart rate is a symptom in which a person's heart rate (the number of heart contractions per minute) is less than normal for the average person of the same size, doing the same activities. For adults, slow heart rate usually means a rate below 50-60 beats per ...Read more


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What is bradycardia?

Bradycardia: Bradycardia is a heart rate less than 60 beats per minute by definition. There are many kinds of bradycardia. ...Read more

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Is bradycardia dangerous?

Is bradycardia dangerous?

Possibly: Severe bradycardia can be dangerous, especially with heart rates approaching 30 or less. Symptoms can develop with heart rates below 50. Cause of bradycardia and rhythm should be determined. ...Read more

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Does bradycardia progress?

Does bradycardia progress?

It can: Well there are different kinds of bradycardia and in general yes they can progress. In some patients the heart tends to get progressively slower as that patient gets older. ...Read more

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Why does bradycardia happen?

Why does bradycardia happen?

Bradycardia: Bradycardia, in adults (not in children) is defined as heart rate slower than 60 beats per minutes. It can be perfectly normal in people who are athletic. For example, marathon runners can have resting heart rate in 40s or even lower. It is, generally, pathological, if it leads to symptoms of dizziness, lightheadedness or fainting. If it causes extreme symptoms, a pacemaker is needed. ...Read more

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Can bradycardia cause syncope?

Can bradycardia cause syncope?

Yes: Syncope is loss of consciousness due to transitory decline in blood flow to brain. This can be caused by irregular heart rate or rhythm or by alteration of blood volume or distribution. ...Read more

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What are causes of bradycardia?

What are causes of bradycardia?

It depends: Bradycardia indicates that the heart rate is too slow (< 60 BPM in adults). It may be associated with a normal electrical impulse (such as sinus bradycardia in a well-trained athlete or during sleep) or an arrhythmia (abnormal electrical impulse). Some of the more common abnormal rhythms associated with bradycardia include atrioventricular block, sick sinus syndrome, and junctional rhythm. ...Read more

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What is symptomatic bradycardia?

Bradycardia: When the heart rate is slow enough to cause lightheadedness, weakness, fatigue, and perhaps shortness of breath, the bradycardia is symptomatic. ...Read more

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What does marked bradycardia mean?

What does marked bradycardia mean?

HR < 50: Bradycardia is defined as heart rate less than 60 bpm. I don't know if there is a formal definition of severe bradycardia, but i would consider bradycardia severe if the heart rate was less than 50. ...Read more

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