What Does Sinus Arrhythmia Mean?

Q:
What does sinus arrhythmia mean?

A:
Sinus arrhythmia is one type of heart rhythm disorder (arrhythmia). More specifically, it refers to the arrhythmia that originates from the sinus node, a group of cells in the right atrium of the heart.

The exact cause is unclear.

As the name indicates, this condition comes with changes in the frequency of heartbeat. And, according to the changes, cases of this condition fall into two types.

  • Sinus tachycardia: when the heart rate is above 100 beats/min.
  • Sinus bradycardia: when the heart rate is below 50 beats/min.

Note: the normal range of heart rate for an adult is 60 to 90 beats/min.

Besides the irregularity of heartbeats, there may be other symptoms, including:

  • Pain in the chest;
  • Excitement and anxiety;
  • Shortness of breath;
  • Weakness;
  • Dizziness;
  • Others.

However, some patients may never experience symptoms of any kind. So, in order to determine the condition, the individual need take an electrocardiogram (ECG) test.

Keywords: sinus arrhythmia; sinus tachycardia; sinus bradycardia.

* The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.