Analysis of the Sweat Response According to the Pathology in Neurologic Patients (Sudoscan)
August 20, 2018 updated by: University Hospital, Toulouse
Analysis of the Sweat Response According to the Pathology in Neurologic
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
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed 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 Type
Observational
Enrollment (Actual)
450
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Sampling Method
Non-Probability Sample
Study Population
Patients referred to the autonomic laboratory of the neurology department at Toulouse University Hospital
Description
Inclusion Criteria:
- Patients with MSA-P or PD
Exclusion Criteria:
-
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Retrospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
|---|---|
|
MSA-P
Patients with multiple systeme atrophy (MSA) with predominant parkinsonism (MSA-P) had evaluation of cardiovascular function and sweating function
|
Sweating dysfunction by Sudoscan
Other Names:
Cardiovascular (CV) tests
|
|
PD patients
Parkinson's disease (PD) patients had evaluation of cardiovascular function and sweating function
|
Sweating dysfunction by Sudoscan
Other Names:
Cardiovascular (CV) tests
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Sweating autonomic test
Time Frame: baseline
|
Evaluate the performance of the laboratory battery of CV tests and of sweating dysfunction to differentiate MSA-P from PD
|
baseline
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Anne Pavy-Le Traon, MD, University Hospital, Toulouse
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
March 1, 2015
Primary Completion (Actual)
March 1, 2017
Study Completion (Actual)
March 1, 2017
Study Registration Dates
First Submitted
August 17, 2018
First Submitted That Met QC Criteria
August 20, 2018
First Posted (Actual)
August 21, 2018
Study Record Updates
Last Update Posted (Actual)
August 21, 2018
Last Update Submitted That Met QC Criteria
August 20, 2018
Last Verified
August 1, 2018
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- RC31/15/7550
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
No
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.