About SUDOSCAN

SUDOSCAN principle

SUDOSCAN is a test that provides an accurate evaluation of sweat function. The test focuses on small nerve fibers within the peripheral nervous system innervating the sweat glands.

SUDOSCAN measures the ability of the sweat glands to release chloride ions in response to an electrical  stimulus on the palms of the hands and soles of the feet, areas with the highest sweat gland density.

SUDOSCAN test results can be used as indicators for patients at risk of autonomic dysfunction through the measurement of Electrochemical Skin Conductance (ESC) and the amount of observed asymmetry between the right and left side.

SUDOSCAN efficacy has been evaluated in the assessment of small fiber neuropathies in several diseases and compared to reference tests recommended in guidelines. (such as Skin biopsy or QSART – for more information, you can refer to this page): 

  • Diabetes
  • Parkinson
  • Chemotherapy induced polyneuropathy
  • Familial amyloid polyneuropathy
  • Fabry disease

With quantitative and reproducible results, SUDOSCAN allows physicians to detect early and follow-up peripheral neuropathy to monitor disease progression and assess treatment efficacy for better patient management.

How doest it work : A test of sudoral function

The degeneration of small nerve fibers reduces sweat gland innervation and impairs sudomotor function.

SUDOSCAN tests sweat gland function by applying a small direct current to both hand and foot sensor plates. At a low voltage, the stratum corneum acts as a capacitor, leaving the sweat ducts as the only channel for the transmission of Cl- ions.

SUDOSCAN provides a quantitative measure of chloride conductance (measured in microsiemens) and its results serve as a biomarker to assess sweat gland function in relation to sweat gland innervation.

visuel-a-test-of-sudoral-function-smartphone

The degeneration of small nerve fibers reduces sweat gland innervation and impairs sudomotor function.

SUDOSCAN tests sweat gland function by applying a small direct current to both hand and foot sensor plates. At a low voltage, the stratum corneum acts as a capacitor, leaving the sweat ducts as the only channel for the transmission of Cl- ions.

SUDOSCAN provides a quantitative measure of chloride conductance (measured in microsiemens) and its results serve as a biomarker to assess sweat gland function in relation to sweat gland innervation.

SUDOSCAN result screen

screenshot-gauche-1

SUDOSCAN follow-up screen

screenshot-droite-2

Easy to read results

The polarity of the stainless steel sensor plates is swapped during a scan to record individual right and left side conductance values. Patient results are displayed right after the end of the scan. The amount of observed asymmetry is an indicator of the type of peripheral neuropathy.
The physician can also display the follow-up over time curve of several SUDOSCAN scans.

For further information about SUDOSCAN technology, you can refer to the following article. 

CONTACT US

Name(Required)
Subscribe to Impeto Medical newsletter
Consent(Required)
This field is for validation purposes and should be left unchanged.

SCIENTIFIC NEWS

Events

Scientific publications

Website dedicated
to health professionals

I am a health professional

To receive our latest scientific news:

Scroll to Top