Examination of sweating
The Sudoscan gives us important brief information about the sweat gland function (Sudomotor function). The test only takes about 5 minutes and enables the function of so-called small fibers in the skin to be screened. Small fibers is the name that summarizes all unmyelinated and myelin-poor nerve fibers. With the Sudoscan, the sudomotor nerve fibers are electrically stimulated, which transmit signals to the sweat glands. To do this, hands and feet are placed on the contact surfaces of the device. In response to a single, barely noticeable electrical stimulus on the surface of the skin, the sweat glands receive the signal to sweat. The resulting slight change in skin moisture is registered by the device as a change in skin resistance. The test gives an overview of whether the sudomotor nerve function deviates from the norm, how pronounced the deviation is and whether there are side differences in the function of these small fibers.
With a further development of the stimulation method, the EzScan, a prediction can be made of how high the risk is of suffering from metabolism-related, e.g. diabetic, polyneuropathy in the coming years.