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Dysautonomia
Dysautonomia is an umbrella term used to describe several different medical conditions that cause a malfunction of the Autonomic Nervous System (ANS). The ANS controls the 'automatic' functions of the body that we do not consciously think about, such as heart rate, blood pressure, digestion, dilation and constriction of the pupils of the eye, kidney function, and temperature control.
Common Symptoms
Lightheadedness, fainting or near fainting (syncope)
Unstable blood pressure and heart rate
Digestive issues (gastroparesis, severe bloating)
Temperature dysregulation and sweating abnormalities
Fatigue and exercise intolerance
Causes & Triggers
- Autoimmune diseases (Sjogren's, Lupus)
- Viral infections
- Connective tissue disorders (hEDS)
- Neurological disorders
- Toxic exposures
Diagnosis
Diagnosis involves autonomic testing such as the Tilt Table Test, Valsalva maneuver testing, deep breathing tests, and QSART (Quantitative Sudomotor Axon Reflex Test) to evaluate sweat gland function.
Treatment Approaches
Lifestyle modifications (hydration, salt intake)
Physical conditioning programs
Pharmacological interventions to manage blood pressure and heart rate
Vagus nerve stimulation and nervous system regulation
Treating underlying causes (e.g., autoimmunity)
Research & Sources
Dysautonomia International: What is Dysautonomia?
Dysautonomia InternationalView Source
The Autonomic Nervous System and Dysautonomia
Clinical Autonomic ResearchView Source