What is inappropriate sinus tachycardia?
Inappropriate sinus tachycardia (IST) is an elevated heart rhythm. The mechanism is not well understood. The normal heart rate is considered to be 60 to 100 beats/min, with sinus tachycardia being defined as a rate exceeding 100 beats/min.
How do members experience inappropriate sinus tachycardia?
Top 5 symptoms reported by people with inappropriate sinus tachycardia*
Common symptoms
How bad it is
What people are taking for it
Common symptom
Fatigue
How bad it is
What people are taking for it
Common symptom
Tachycardia (fast heart rate)
How bad it is
What people are taking for it
Common symptom
Dizziness
How bad it is
What people are taking for it
*Reports may be affected by other conditions and/or medication side effects. We ask about general symptoms (anxious mood, depressed mood, fatigue, pain, and stress) regardless of condition.
Top treatments taken by people for inappropriate sinus tachycardia*
Who has inappropriate sinus tachycardia on PatientsLikeMe?
| Age | Proportion | # of patients |
|---|---|---|
| <20 | 0 | |
| 20s | 31 | |
| 30s | 67 | |
| 40s | 50 | |
| 50s | 30 | |
| 60s | 17 | |
| 70+ | 7 |
Distribution of sex
| Sex | Proportion | # of patients |
|---|---|---|
| Male | 20 | |
| Female | 184 |