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Useful in monitoring, treating and testing in:

  • Fibromyalgia
  • Painful neuropathies
  • Lumbar Radiculopathy
  • Small-fiber allodynia in Complex Regional Pain Syndrome (CRPS)
  • Underlying Central Nervous System impairment in difficult-to-diagnose patients
  • Early detection of diabetic neuropathy of small-caliber nerve fibers
  • Effectiveness of growth factors, aldosereductase
  • Inhibitors and other new therapies
  • Entrapment and toxic neuropathies
  • Testing programs to detect malingerers
  • Nerve root compression and inflammation

TSA-II - NeuroSensory Analyzer for Sensory Testing

An essential Quantitative Sensory Testing (QST) tool for evaluating nerve impairment and sensory testing in clinical, research and pharmacological trial settings

What is TSA-II? 

TSA-II - NeuroSensory Analyzer is a precise, computer-controlled device capable of generating and documenting response to highly repeatable thermal and vibratory stimuli, such as warmth, cold, heat-induced pain, cold-induced pain or vibration. The TSA-II sensory testing covers small-fiber testing (A-Delta and C-fiber), as well as for large caliber (A-Beta fibers) testing. The TSA-II is also used for identifying thermal pain thresholds in various clinical and research applications.


TSA thermal stimulator test procedure 

How does it work?


The test procedure itself is similar to that employed in such routine tests as eye and hearing examinations, where patients are asked to respond to visual or auditory stimuli. Sensory testing is performed by applying the TSA-II thermode on the patient's skin to heat or cool the skin. Patients respond to the temperature stimuli by pushing a button, and the sensory threshold is recorded and automatically compared to an age-matched normative data.


What would the results show? 


A deviation from the normal range can indicate the existence of peripheral nerve disease or damage due to injury, illness or toxic exposure. Testing comparing contra-lateral body sites and longitudinal (or serial) evaluation before and after therapy can also be routinely employed.



Can I get the test report? 


Test result reports are generated in a variety of graphical formats. 



Dr. Martin Angst  from the department of anesthesia at Stanford University is using the TSA II for determining heat and mechanical pain threshold as described here.




TSA-II NeuroSensory Analyzer Test

TSA-II NeuroSensory Analyzer System


TSA-II Features

TSA brochure
TSA brochure