Sinus arrhythmia

Sinus arrhythmia is significantly irregular in the atrial sinus nodes, making the rhythm of the atria and ventricles irregular. Sinus arrhythmias generally have no special symptoms, and only cause palpitations, dizziness, and even fainting when the heart rate is too low or too fast. During the physical examination, you can find irregular or periodic changes in heartbeat and pulse.

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