How is POTS diagnosed?

The diagnostic criteria: a sustained heart rate increase of ≥ 30 bpm (or ≥ 40 bpm in adolescents) within 10 minutes of standing, in the absence of orthostatic hypotension (a drop in blood pressure with standing), with symptoms of orthostatic intolerance. The test is a 10-minute active stand test or a tilt-table test, done in the right setting. Other causes (anemia, thyroid disease, deconditioning, autonomic neuropathy, medications) need to be excluded first.

Is POTS the same as just being out of shape?

No, although deconditioning can mimic or coexist with POTS. POTS is a specific pattern of autonomic dysfunction — the heart rate response to upright posture is exaggerated even after other causes are ruled out. Deconditioning is part of management (gradual recumbent-then-upright exercise rebuilds tolerance) but POTS exists independently of fitness level, and many POTS patients were previously athletic.

Often, an infection or other systemic stressor — viral illness (including COVID-19, which has substantially increased POTS awareness and recognition), surgery, trauma, pregnancy. Some patients have an autoimmune flavor; some have an underlying connective-tissue disorder (Ehlers-Danlos syndrome and POTS overlap significantly); some appear idiopathic. POTS following COVID-19 is now well-documented and may persist for months to years.

What is the treatment?

Multi-layered. Foundation: substantial daily fluid intake (often 2-3 liters), generous sodium intake (often 8-10 g/day, sometimes via salt tablets), graduated compression (waist-high stockings or abdominal binder), and a recumbent-progressing-to-upright exercise program. Medications when lifestyle alone is not enough: beta blockers (low-dose propranolol or ivabradine), midodrine, fludrocortisone, pyridostigmine — picked to match the dominant symptom pattern. The treatment is tuned to the individual; not every patient needs every layer.

Can virtual cardiology really manage POTS?

Yes — POTS management is largely longitudinal lifestyle reinforcement, medication titration, and symptom tracking. All of which work cleanly by video. The pieces that need in-person care (active stand test or tilt-table test, sometimes autonomic function testing) are coordinated with local facilities. A home BP cuff and a smartwatch or simple manual heart-rate check let patients track their orthostatic response between visits, which makes the ongoing work efficient.

POTS | Deo Medical Cardiology

If you've been told it's anxiety

Many POTS patients have been told their symptoms are anxiety — sometimes by multiple doctors over years — before getting a proper diagnosis. The dismissal is common because POTS symptoms (palpitations, lightheadedness, exercise intolerance, brain fog) overlap with anxiety in obvious ways, and the diagnostic test is rarely done in a general practice setting.

We take the workup seriously. That means doing the active stand test or coordinating a tilt-table test when appropriate. It means screening for the conditions that often co-occur — hypermobile Ehlers-Danlos syndrome (hEDS), mast cell activation syndrome (MCAS), autoimmune patterns, post-viral / long COVID dysautonomia. It means reviewing your symptom diary, your smartwatch heart-rate data, and any prior records you bring.

If the workup confirms POTS, the treatment ladder is real: ivabradine for tachycardia-dominant phenotypes, midodrine and fludrocortisone for orthostatic hypotension overlap, low-dose beta blockers when hyperadrenergic features dominate, pyridostigmine in selected cases. None of this requires waiting for "another doctor to take you seriously" first.

An exaggerated heart-rate response to standing up

Postural orthostatic tachycardia syndrome is a form of autonomic dysfunction in which the heart rate response to upright posture is excessive. Normally, standing causes a modest increase in heart rate as the body compensates for blood pooling in the legs. In POTS, that response is exaggerated — heart rate jumps by 30+ bpm (40+ in adolescents) and stays elevated as long as the patient is upright. Blood pressure, importantly, usually does NOT drop — that distinguishes POTS from orthostatic hypotension.

The symptoms are downstream: the heart pounding (palpitations), the brain not getting enough blood flow (lightheadedness, visual changes, cognitive fog), and the overall toll of an autonomic system that's working too hard (fatigue, exercise intolerance, nausea, heat sensitivity).

The typical POTS patient

Demographics:

Most patients are women, ages 15-50.
Common after viral illness — especially COVID-19, which has led to a substantial increase in POTS diagnoses since 2020.
Overlaps significantly with Ehlers-Danlos syndrome and other connective-tissue disorders.
Some patients have an autoimmune component.
Family clustering suggests a genetic predisposition in some cases.

POTS is more common than its under-recognition would suggest — estimates put the prevalence around 0.2-1% of the population.

Diagnosing POTS

The active stand test (or tilt-table test)

The diagnostic test. Heart rate and blood pressure are measured supine after at least 5 minutes of rest, then again at 1, 3, 5, 7, and 10 minutes of standing. A sustained heart rate increase of ≥ 30 bpm (or absolute heart rate ≥ 120 bpm) within 10 minutes of standing — without a meaningful drop in blood pressure — meets the cardiovascular criterion. Symptoms reproduced during the test confirm clinical relevance.

Excluding other causes

The diagnosis requires ruling out other reasons for orthostatic intolerance:

Anemia — CBC
Hyperthyroidism — TSH
Adrenal insufficiency — when suspected
Diabetes-related autonomic neuropathy
Medication effects — antihypertensives, antidepressants
Pheochromocytoma — rarely needed but on the differential
Deconditioning — which can coexist with POTS

Sometimes added

Echocardiogram to rule out structural causes; autonomic function testing in select cases.

Managing POTS

Multi-layered, tuned to the individual:

Foundation — lifestyle and supportive measures

Fluid intake — 2-3 liters daily for most patients.
Sodium — 8-10 g daily (much higher than general-population guidelines), often using salt tablets or electrolyte solutions.
Compression — waist-high stockings or abdominal binder; reduces venous pooling.
Exercise — graduated, recumbent-first (rowing, recumbent bike, swimming) progressing to upright. The "Levine Protocol" and "CHOP protocol" are structured examples.
Avoiding triggers — heat, alcohol, dehydration, prolonged standing.
Sleep hygiene — POTS patients sleep better with the head of the bed slightly elevated.

Medications when lifestyle alone is not enough

Beta blockers — low-dose propranolol is a common starting point.
Ivabradine — selective heart-rate-slowing agent without the fatigue some patients experience with beta blockers; increasingly first-line.
Midodrine — vasoconstrictor for patients with significant orthostatic intolerance.
Fludrocortisone — volume-expanding agent.
Pyridostigmine — augments autonomic function in some patients.
Newer options — IVIG and other immunomodulators in specific autoimmune-flavored cases.

Managing POTS by video

First visit by video. Detailed history, review of prior workups, plan for confirming the diagnosis with an active stand test or tilt table (sometimes can be done at home with a heart-rate monitor and BP cuff under guidance), screening labs.
Workup completed locally. ECG, echocardiogram, autonomic testing if indicated.
Build the management plan. Lifestyle foundation, exercise protocol, medications if indicated.
Follow-up visits every 4-8 weeks initially, then every 3-6 months once stable. Most patients improve substantially over 6-12 months with consistent application of the multi-layered approach.

Preparing for your first visit

Reviewing your existing data is what makes the most of our time together. Bring whatever you have:

Smartwatch or fitness-tracker heart-rate logs — especially standing-vs-supine episodes
A symptom diary if you've been keeping one — when symptoms hit, triggers, severity, duration
Prior cardiology workups, ECGs, tilt-table or active stand test results if available
Recent lab panels — CBC, thyroid (TSH), comprehensive metabolic, vitamin D, B12, ferritin
List of medications tried, with doses and notes on what helped or didn't
Notes on family history of POTS, dysautonomia, hEDS, or autoimmune conditions

You don't need to have all of this — many patients arrive with none of it. But anything you bring shortens the path to a working diagnosis and treatment plan.

Often missed, and very treatable

POTS is real, common, and treatable. The diagnosis is often delayed because the symptoms are diffuse and the right test isn't always done. Done well, the multi-layered approach significantly improves quality of life for most patients. The virtual cardiology relationship fits well because the work is largely longitudinal — building the lifestyle layer, titrating medications, troubleshooting setbacks, and tracking progress over months.

Have a question before booking? Email clinic@deo-medical.com — happy to answer pre-booking questions about whether a virtual visit is right for your specific situation.

POTS