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Analysis of the Sweat Response According to the Pathology in Neurologic Patients — Sudoscan  

Neurological Disorder Clinical Trial

Official title:
Analysis of the Sweat Response According to the Pathology in Neurologic

Clinical Trial Summary

Cardiovascular autonomic neuropathy (CAN) has been shown to be an important risk factor for cardiac diseases, particularly in diabetes.

CAN may be investigated by a battery of laboratory cardiovascular autonomic reflex tests(initially described by Ewing).

First screening for CAN (as proposed in diabetic patients) can be performed by assessing heart rate (HR) response to deep breathing, blood pressure (BP) and HR response to a 5 minutes stand test

Clinical Trial Description

Sweat glands are innervated by thin and un myelinated sympathetic C-fibers that can be impaired in neuropathies,especially length-dependent ones. Sweating dysfunction has been shown in several neurological peripheral disorders and it has been suggested that sweating function should be included among the diagnostic tests for the early detection of autonomic neuropathies. Several methods have been developed, but the lack of easy and quick tests to diagnose sweating dysfunction has restricted widespread use in clinical practice. Measurement of electrochemical skin conductance (ESC) using Sudoscan® is a new method for quick, non-invasive and quantitative assessment of sweating. This technique has demonstrated its usefulness in detecting autonomic and small fiber neuropathy, especially in diabetic patients.The aim of this study was to evaluate the performance of the laboratory battery of CV tests and of sweating dysfunction by Sudoscan®, alone or in combination, to differentiate MSA-P from PD. Among the CV tests, the present study particularly looked at those tests already recommended as screening bedside tests in diabetic patients (HR variations with deep breathing and BP variations during stand test) ; these tests are rapid and easy to perform. HR variations with deep breathing depend on parasympathetic tone and BP variations depend on vasomotor sympathetic response. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03639909
Study type Observational
Source University Hospital, Toulouse
Contact
Status Completed
Phase
Start date March 2015
Completion date March 2017
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