Postural Orthostatic Tachycardia Syndrome (POTS) Diagnosis and Management

Diagnostic Criteria

The American College of Cardiology defines orthostatic tachycardia as a sustained heart rate increase of ≥30 bpm within 10 minutes of moving from recumbent to standing position (or ≥40 bpm in individuals 12-19 years of age) 2
POTS is characterized by: 1) frequent symptoms occurring with standing, 2) heart rate increase of ≥30 bpm during positional change from supine to standing, and 3) absence of orthostatic hypotension, according to the American College of Cardiology 1
The standing heart rate in POTS patients is often >120 bpm, which helps confirm the diagnosis, as stated by the American College of Cardiology 1

Symptoms associated with POTS include lightheadedness, palpitations, tremulousness, generalized weakness, blurred vision, exercise intolerance, and fatigue upon standing, as described by the American College of Cardiology 1
Orthostatic intolerance is a syndrome consisting of frequent, recurrent, or persistent lightheadedness, palpitations, tremulousness, generalized weakness, blurred vision, exercise intolerance, and fatigue upon standing, according to the American College of Cardiology 2

A heart rate increase ≥15 bpm upon standing suggests non-neurogenic causes, whereas a heart rate increase <15 bpm indicates neurogenic orthostatic hypotension with autonomic nervous system dysfunction, as stated by the American College of Cardiology is not the primary source, however 4
The stable blood pressure distinguishes POTS from vasovagal syncope, which typically involves both vasodepressor hypotension and inappropriate bradycardia, according to the American College of Cardiology 2

Obtain a detailed history focusing on symptom characterization, timing of symptom onset with standing, duration before symptoms develop, and precipitating factors, as recommended by the American College of Cardiology is not the primary source, however 4
Perform a 12-lead ECG in all patients to detect arrhythmias, conduction abnormalities, channelopathies, or structural heart disease, as recommended by the American College of Cardiology is not the primary source, however 5

Do not dismiss this finding as benign without evaluating for symptoms, as POTS significantly impairs quality of life and functional capacity, according to the American College of Cardiology 1
Consider referral to cardiology if high-risk features are present, such as presyncope during exercise, abnormal ECG, family history of sudden cardiac death, absence of prodromal symptoms, or associated chest pain, as recommended by the American College of Cardiology is not the primary source, however 5