Condition Lookup
Category:
Autonomic Nervous System Disorders
Number of Conditions: 4
Postural Orthostatic Tachycardia Syndrome (POTS)
Specialty: Neurology
Category: Autonomic Nervous System Disorders
Symptoms:
rapid heartbeat upon standing; dizziness; lightheadedness; fainting; fatigue; brain fog; nausea; cold extremities; chest pain; exercise intolerance
Root Cause:
Dysregulation of the autonomic nervous system, leading to abnormal heart rate and blood flow response to positional changes.
How it's Diagnosed: videos
Tilt table test, standing test (measuring heart rate and blood pressure changes), patient history, and ruling out other causes of symptoms.
Treatment:
Non-pharmacological interventions such as increasing salt and fluid intake, wearing compression garments, physical therapy, and lifestyle modifications; pharmacological treatments based on symptoms and patient response.
Medications:
Medications include beta-blockers (e.g., propranolol ) to reduce heart rate, fludrocortisone (a mineralocorticoid) to increase blood volume, midodrine (an alpha-1 agonist) to raise blood pressure, and ivabradine (a heart rate-reducing agent).
Prevalence:
How common the health condition is within a specific population.
Affects approximately 0.2% of the population; more common in women, particularly between the ages of 15 and 50.
Risk Factors:
Factors or behaviors that increase the likelihood of developing the condition.
Female sex, family history of dysautonomia, history of viral illness, autoimmune diseases, and conditions like Ehlers-Danlos Syndrome or chronic fatigue syndrome.
Prognosis:
The expected outcome or course of the condition over time.
Often manageable with treatment, though symptoms may persist for years; improvement is possible with lifestyle changes and targeted therapies.
Complications:
Additional problems or conditions that may arise as a result of the original condition.
Severe limitations in daily activities, increased risk of falls, anxiety or depression due to chronic illness, and possible progression to other forms of dysautonomia.
Dysautonomia
Specialty: Neurology
Category: Autonomic Nervous System Disorders
Symptoms:
dizziness; fainting; rapid heartbeat; fatigue; difficulty regulating body temperature; digestive issues; blurred vision; shortness of breath
Root Cause:
Dysfunction of the autonomic nervous system, which controls involuntary functions such as heart rate, blood pressure, digestion, and temperature regulation.
How it's Diagnosed: videos
Comprehensive clinical evaluation, tilt table test, autonomic reflex screening, sweat testing, and blood tests to identify secondary causes.
Treatment:
Tailored based on the type and cause; lifestyle adjustments, physical therapy, dietary changes, and symptom-specific medications.
Medications:
Medications may include beta-blockers (e.g., metoprolol ) for heart rate control, fludrocortisone (a mineralocorticoid) to expand blood volume, pyridostigmine (a cholinesterase inhibitor) for autonomic modulation, and midodrine (an alpha-1 agonist) to improve blood pressure.
Prevalence:
How common the health condition is within a specific population.
Exact prevalence varies widely; associated conditions like POTS and neurodegenerative diseases suggest a significant affected population.
Risk Factors:
Factors or behaviors that increase the likelihood of developing the condition.
Autoimmune disorders, diabetes, neurodegenerative diseases, genetic predisposition, and viral illnesses.
Prognosis:
The expected outcome or course of the condition over time.
Highly variable; some forms are reversible or manageable, while others (e.g., those linked to neurodegenerative diseases) may progress.
Complications:
Additional problems or conditions that may arise as a result of the original condition.
Poor quality of life, limited physical activity, secondary complications like blood pooling, gastrointestinal dysfunction, and potential overlap with other chronic conditions.
Orthostatic Hypotension
Specialty: Neurology
Category: Autonomic Nervous System Disorders
Symptoms:
lightheadedness; dizziness; fainting; blurred vision; weakness; fatigue; headaches when standing
Root Cause:
A drop in blood pressure upon standing, due to impaired autonomic regulation, reduced blood volume, or cardiovascular conditions.
How it's Diagnosed: videos
Measuring blood pressure and heart rate changes from lying to standing, tilt table test, and evaluation of contributing factors.
Treatment:
Non-pharmacological strategies like increasing fluid and salt intake, wearing compression stockings, and slowly transitioning to upright positions; medications if needed.
Medications:
Medications include fludrocortisone (a mineralocorticoid) to expand blood volume, midodrine (an alpha-1 agonist) to constrict blood vessels, and droxidopa (a norepinephrine prodrug) to increase blood pressure.
Prevalence:
How common the health condition is within a specific population.
More common in older adults, affecting approximately 6–30% of people over age 65.
Risk Factors:
Factors or behaviors that increase the likelihood of developing the condition.
Age, neurodegenerative diseases, diabetes, medications that lower blood pressure, and dehydration.
Prognosis:
The expected outcome or course of the condition over time.
Symptoms can often be managed effectively; underlying causes significantly impact long-term outcomes.
Complications:
Additional problems or conditions that may arise as a result of the original condition.
Falls and related injuries, reduced independence, cardiovascular events, and reduced quality of life.
Horner’s Syndrome
Specialty: Neurology
Category: Autonomic Nervous System Disorders
Symptoms:
drooping eyelid (ptosis); constricted pupil (miosis); lack of sweating (anhidrosis) on the affected side; redness or flushing of the affected side
Root Cause:
Disruption of the sympathetic nerves supplying the eye and face, often due to injury, tumor, or vascular lesion.
How it's Diagnosed: videos
Clinical evaluation, pharmacological testing (e.g., cocaine or apraclonidine drops), imaging studies (MRI or CT) to identify the cause.
Treatment:
Treatment focuses on addressing the underlying cause (e.g., removing a tumor, treating vascular issues); symptomatic treatment is typically not required.
Medications:
No specific medications for Horner’s syndrome; treatment is directed at the underlying pathology (e.g., corticosteroids for inflammatory causes, anticoagulants for vascular issues).
Prevalence:
How common the health condition is within a specific population.
Rare; exact prevalence is not well-defined.
Risk Factors:
Factors or behaviors that increase the likelihood of developing the condition.
Trauma, tumors (e.g., Pancoast tumor), vascular conditions (e.g., carotid artery dissection), and infections.
Prognosis:
The expected outcome or course of the condition over time.
Depends on the underlying cause; resolution of symptoms may occur if the cause is treatable.
Complications:
Additional problems or conditions that may arise as a result of the original condition.
Potential visual impairment, cosmetic concerns, and complications from the underlying cause, such as stroke or tumor progression.