Normal sinus rhythm (NSR) is another name for a normalheart rhythm.
This article explains how the sinus rhythm regulates heartbeats.
It also discusses how different arrhythmias occur, including their various causes and symptoms.
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Sinus Rhythm vs. Heart Rate
Sinus rhythm is the pattern of your heartbeat.
Heart rate is the number of times the heart beats per minute.
A normal sinus rhythm is associated with a heart rate between 60 and 100 beats per minute.
What Is a Normal Sinus Rhythm?
These impulses are what appear as up-and-down patterns of anelectrocardiogram (ECG).
Is Sinus Arrhythmia Serious?
Sinus arrhythmia can sometimes be so brief that the overall rhythm isn’t greatly affected.
But some, like those that produce shortness of breath or dizziness, may point to serious conditions.
What Is Bradycardia?
A slow heart rate is referred to asbradycardia.
Trained athletes can have resting heart rates in the 40s even while awake.
Bradycardia may also be related to health problems that directly or indirectly affect the normal sinus rhythm.
Symptoms
A slow heart rhythm without symptoms is usually no cause for concern.
This may include the use of apacemaker.
Symptoms include:
What Is Tachycardia?
Sinus rhythm that is abnormally fast is referred to as sinustachycardia.
Tachycardia may not cause recognizable symptoms in some people.
When it does, symptoms may include:
Can Anxiety Cause Sinus Arrhythmia?
Yes, anxiety is one possible cause.
Some people who experience anxiety-related sinus arrhythmias may benefit from meditation, yoga breathing, and similar practices.
A normal heartbeat is referred to as normal sinus rhythm.
An abnormally slow heartbeat is called bradycardia, while an abnormally fast heartbeat is called tachycardia.
American Heart Association.About arrhythmia.
Heart rate greater than 80 as mortality predictor in acute myocardial infarction.Am J Cardiovasc Dis.
2013;3(3):120-8.
American Heart Association.Bradycardia: slow heart rate.
Choudhury M, Boyett MR, Morris GM.Biology of the sinus node and its disease.Arrhythm Electrophysiol Rev.
2016;188(17-18):e466-73.
doi:10.1503/cmaj.160079
Wettersten N, Fan D, Hsia HH.Not simply sinus tachycardia.The American Journal of Medicine.
2015;128(9):e13-e14.
2016;13(4):e136-e221.
2022 Feb 13;19(4):2087. doi:10.3390/ijerph19042087.
National Heart, Lung and Blood Institute.Arrhythmias treatment.
