Inappropriate Sinus Tachycardia - Symptoms

Symptoms

Symptoms reported by patients vary in frequency and severity.

Symptoms associated with IST include:

  • Frequent palpitations
  • Dyspnea (shortness of breath) and palpitations on exertion
  • Pre-syncope (feeling as if about to faint)
  • Fatigue (physical)
  • Dizziness
  • Exercise intolerance
  • Occasional paresthesia and cramping
  • Symptoms associated with autonomic nervous system disturbance, including GI disturbance

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