Nonparoxysmal sinus tachycardia

Nonparoxysmal sinus tachycardia (NPST) is called idiopathic sinus tachycardia (IST). It is a clinical syndrome that has not been clearly defined so far. In the event of stress or stress, the response to excessively rapid resting heart rate, sinus heart rate of 100 beats / min, and no other cause of tachycardia.

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