Autonomic Function Test
If you're sick without explanation,
your autonomic nervous system needs testing
Have you been told that tests show "nothing wrong"?
Functional autonomic disorders can only be detected with specialized tests.
OSANG Neurosurgery identifies hidden causes through 6 systematic diagnostic tests.
Test Process
OSANG Neurosurgery Diagnostic Process
Tests are selected and customized based on each patient's symptoms.
01
Medical Interview
We assess symptom patterns, onset timing, and lifestyle habits
02
Autonomic Function Tests
Quantitative analysis of autonomic status via Tilt Table, Valsalva, and HRV
03
EEG & Thermal Imaging
EEG and DITI assess brain function and autonomic nerve distribution
04
Results & Treatment Plan
Comprehensive analysis of test results to design a personalized treatment plan
Core Tests
Autonomic Nervous System Tests
Core tests that objectively measure the balance between sympathetic and parasympathetic nervous systems.
01
Tilt Table Test
Head-Up Tilt Test
02
Autonomic Reflex Test
Valsalva Maneuver
03
Autonomic Function Test
HRV Resting Analysis
01
Autonomic Function Test
Tilt Table Test
Head-Up Tilt Table Test
The patient lies on a table that is tilted up to 70 degrees to simulate an upright position. Blood pressure, heart rate, and symptom changes are monitored in real time during postural changes to diagnose orthostatic hypotension, postural orthostatic tachycardia syndrome (POTS), and vasovagal syncope.
- Differentiates causes of dizziness and vision blackout upon standing
- Continuous blood pressure and heart rate monitoring for objective data
- Test duration approximately 30-45 minutes
02
Autonomic Function Test
Valsalva Maneuver Test
Autonomic Reflex Test
Blood pressure and heart rate changes are analyzed while the patient exhales against a fixed pressure. The reflex functions of the sympathetic and parasympathetic nervous systems are evaluated in 4 phases to quantify the degree of autonomic nerve damage.
- Integrated assessment of sympathetic and parasympathetic reflex pathways
- Essential for determining the severity of autonomic nerve damage
- Non-invasive test, approximately 10-15 minutes
03
Autonomic Function Test
HRV Resting Analysis
Heart Rate Variability — Resting Analysis
Micro-variations in heartbeat intervals at rest are analyzed to numerically determine the activity ratio between sympathetic and parasympathetic nervous systems. Stress index, autonomic balance score, and biological age are calculated.
- Quantification of sympathetic/parasympathetic activity ratio (LF/HF ratio)
- Objective indicator of chronic stress and fatigue
- Used to track progress before and after treatment
04
Brain Function Test
EEG (Electroencephalogram)
Electroencephalogram
Electrodes are placed on the scalp to record the brain's electrical activity. This identifies brainwave imbalances, hyperarousal patterns, and sleep-related abnormalities commonly seen in dysautonomia patients, helping to determine treatment direction.
- Brain function assessment through alpha, beta, and theta wave distribution
- Objective evidence for anxiety, insomnia, and concentration difficulties
- Used for Transcranial Magnetic Stimulation (TMS) treatment planning
05
Thermal Analysis
DITI (Digital Infrared Thermal Imaging)
Digital Infrared Thermal Imaging
Infrared radiation emitted from the body is detected to create thermal images of the body surface temperature distribution. This visually identifies left-right asymmetries and abnormal patterns in blood flow and body temperature regulated by the autonomic nervous system, helping to locate pain areas and regions of autonomic dysfunction.
- Visualization of peripheral blood flow controlled by the autonomic nervous system
- Left-right temperature asymmetry helps estimate nerve damage locations
- Non-contact, radiation-free — completely safe test
06
Blood Analysis
Blood Test Panel
Comprehensive Blood Test Panel
This test screens for other conditions that can cause symptoms similar to dysautonomia, such as thyroid disorders, anemia, diabetes, and vitamin deficiencies. By ruling out underlying conditions, we can focus on autonomic dysfunction and reach an accurate diagnosis.
- Checks thyroid function, blood sugar, electrolytes, and anemia levels
- Screens for vitamin D, B12, and other deficiencies
- Differential diagnosis of similar conditions improves diagnostic accuracy
FAQ
Frequently Asked Questions
We systematically perform Tilt Table Test, Valsalva Maneuver Test, HRV (Heart Rate Variability) analysis, EEG (Electroencephalogram), DITI (Digital Infrared Thermal Imaging), and blood tests. Tests are combined based on each patient's symptoms.
The full testing process takes approximately 1-2 hours. Required test items may vary depending on individual conditions, and customized testing is arranged after specialist consultation.
Please avoid caffeine before testing and wear comfortable clothing. If you are taking any medications, please inform us in advance.
Regular health checkups examine structural abnormalities of organs. Autonomic function tests evaluate the 'functional' state of the nervous system, so autonomic imbalances can be detected even when standard tests show normal results.
Basic consultations and some tests are covered by Korean national health insurance. Certain detailed test items may include non-covered components. Please contact us by phone before your visit for cost details.
Consultation
Consultation Request
Please briefly describe your symptoms and we will contact you shortly.