sinus arrhythmia

Sinus Bradycardia with Sinus Arrhythmia


What is really Sinus Bradycardia with Sinus Arrhythmia and just how did this condition come about. We ran a check from CMBI which states that:

“Sinus Bradycardia is a rhythm in which fewer than the normal number of impulses arise from the sinoatrial (SA) node. The normal heart rate has been considered historically to range from 60 to 100 beats/min, with Sinus Bradycardia being defined as a sinus rhythm with a rate below 55 to 60 beats/min.

Sinus Bradycardia with Sinus Arrhythmia A study in 500 normal subjects using an ECG (electrocardiographically) recorded heart rate found the mean afternoon heart rate for men and women to be about 70 beats/min with two standard deviation limits of 46 and 93 beats/min in men and 51 and 95 beats/min for women; there was no significant age-related effect.”

Wikipedia also describes Sinus Bradycardia as a heart rhythm that originates from the sinus node and has a rate of under 60 beats per minute.

Here is what Sinus Arrhythmia Heartbeat Sounds Like

What are Sinus Bradycardia Symptoms?

There are usually no significant symptoms for Sinus Bradycardia although a small minority of patients do report getting dizziness and feeling lightheaded. There are some extreme cases that include experiences of chest pain and shortness of breath.  This medical condition is often caused when the fibrosis of sinus node and the surround tissues have degenerated. The doctor will usually discuss with the patient to identify the cause and recommend an appropriate treatment.

The medical explanations for Sinus Bradycardia are usually that they are sinatorial node (SA node) disorder or sometimes called sick sinus syndrome and atrioventricular node (AV node) disorder. The AV node disorder may sometimes be acquired even as early as birth and are more common among elderly patients.

Wikipedia says Bradycardia is not necessarily problematic. People who regularly practice sports may have sinus bradycardia, because their trained hearts can pump enough blood in each contraction to allow a low resting heart rate.

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