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Postural Orthostatic Tachycardia Syndrome
Aka: Postural Orthostatic Tachycardia Syndrome, POTS Syndrome
- See Also
- Orthostatic Hypotension
- Definitions
- Postural Orthostatic Tachycardia Syndrome (POTS)
- Symptoms of orthostatic intolerance with Tachycardia, but not significantly hypotensive
- Epidemiology
- Prevalence: 0.2 to 1% in general U.S. population
- Age <50 years in most cases (peaks age 15 to 25 years)
- Symptoms
- See Orthostasis
- Symptoms occur on standing from supine (or seated position) and are relieved on returning to supine position
- Typically worse in mornings and chronic (duration 3-6 months) at diagnosis
- Dizziness or light headedness
- Chest Pain or Palpitations
- Orthostatic Syncope
- Nausea
- Pallor
- Weakness or Fatigue
- Dyspnea
- Blurred or dimmed Vision
- Neck or Shoulder Pain
- Diagnosis
- Symptoms suggestive of Orthostasis (see above) AND
- Insignificant change in systolic Blood Pressure (BP decreases <20 mmHg) AND
- Does not meet criteria for Orthostatic Hypotension
- Tachycardia
- Sustained Heart Rate 30 bpm or higher within 10 minutes of standing (or Head-Up Tilt-Table Testing)
- Standing Heart Rate is typically >120 bpm
- When evaluating, age 12 to 19 year olds, requires Heart Rate increase >=40 bpm
- Evaluation
- Head-Up Tilt-Table Testing
- References
- Kim (2022) Am Fam Physician 105(1): 39-49 [PubMed]