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Doctor insights on: What Is Sinus Bradycardia

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What is sinus bradycardia?

What is sinus bradycardia?

Slow heart rate: Generally a heart rate less than 50 beats per minute coming from the heart's natural pacemaker is considered sinus bradycardia. It is not necessarily abnormal as well conditioned athletes often have low heart rates. Some medications such as beta blockers slow the heart rate to this level. ...Read more

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Dr. Jeffrey Stevens
3 doctors shared insights

Sinus (Definition)

In anatomy, a sinus is a cavity within a bone or other tissue. Most commonly found in the bones of the face and connecting with the nasal cavities. Sinus (anatomy), description of the general term paranasal sinuses, air cavities in the cranial bones, especially those near the nose, including: the maxillary sinuses, also called the maxillary antra and the largest of the ...Read more


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What does sinus bradycardia look like on an ecg?

What does sinus bradycardia look like on an ecg?

See below: Sinus bradycardia is usually defined as a heart beat of less than 60 beats per minute. Iit by itself does not indicate a heart problem. ...Read more

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What is sinus bradycardia and ventricular hypertrophy ?

What is sinus bradycardia and ventricular hypertrophy ?

Ecg: I presume you are quoting an ecg report. Sinus bradycardia is a normal type heart rate of less than 60 beats per minute. Ventricular hypertrophy is increased voltage coming from left or right ventricle, perhaps due to increased size of the ventricle. ...Read more

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What is sinus bradycardia and right bundle branch block?

What is sinus bradycardia and right bundle branch block?

RBBB and SBC: Sinus bradycardia is slow heart rates below 60 BPM without abnormal beats. The best description for bundle branch block is here: http://www.Mayoclinic.Com/health/bundle-branch-block/ds00693. ...Read more

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What causes of sinus bradycardia?

What  causes of sinus bradycardia?

Normal or abnormal: Could be normal if physically fit as in athletes due to high parasympathetic tone. Abnormal sinus bradycardia could be due to degeneration of the cells in the sinus node, certain medications such as beta blockers , Diltiazem or verapamil and sinus node ischemia( insufficient blood flow). ...Read more

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Can you define sinus bradycardia?

Can you define sinus bradycardia?

Yes: A slow heart rate in which the electrical signal for each heartbeat originates from the sinus node (where it's supposed to originate). Generally, in an adult, this means a heart rate of less than 60. But keep in mind you can have a heart rate less than 60 and still be okay. For example many good athletes, whose hearts are in great shape, have resting heart rates less than 60. ...Read more

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How dangerous is sinus bradycardia?

How dangerous is sinus bradycardia?

Depends : Heart rates above 50 are usually well-tolerated. Once below 50 symptoms usually develop. Heart rates approaching 30s can be dangerous. Overall any slow heart rate that is associated with symptoms can be dangerous. ...Read more

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Is sinus bradycardia always abnormal?

Is sinus bradycardia always abnormal?

No: Sinus bradycardia may just mean that your heart rate is slightly below the calculated and established "average hr" for the population. Now, if your hr is so low that it is causing symptoms, is not able to maintain adequate blood pressure and / or does not rise with increasing activity, then it is abnormal and you need to be evaluated. ...Read more

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Dr. Kerrie Pinkney
320 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