Assessment of Autonomic Neuronal Changes During Moderate Rise of Intracranial Pressure in Human (CESNA)

February 22, 2013 updated by: University Hospital, Toulouse
The purpose of this project is to determine during moderate rise of intracranial pressure (ICP) in awake patient, the change in autonomic function and its influence on cerebral and systemic haemodynamics.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

From preliminary data, we know that changes in ICP influences both systemic and cerebral haemodynamics, introducing the concept of intracranial baroreflex We have to i) confirm the presence of this intracranial baroreflex, ii) analyze the changes in autonomic function during moderate rise in intracranial pressure (ICP) in human, and iii) correlate the changes in cerebral and systemic haemodynamics with autonomic function.

Study Type

Interventional

Enrollment (Actual)

10

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Toulouse, France, 31059
        • University Hospital Toulouse
      • Toulouse, France, 31059
        • University Hospital of Toulouse
      • Toulouse, France
        • University Hospital

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

Description

Inclusion Criteria:

  • patient suspect of hydrocephalus with gait problems, urine incontinence and mild cognitive impairment.
  • signed consent

Exclusion Criteria:

  • psychiatric problems
  • severe cognitive decline

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

  • Primary Purpose: Basic Science
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Hydrocephalus
Patients suffering of hydrocephalus (cognitive impairment, gait disturbance, urinary incontinence and enlargement of the ventricles) require for clinical purpose infusion studies i.e. injection of mock cerebrospinal fluid (CSF) in the sub arachnoid space to artificially increase ICP. We aim at using infusion studies as a indirect tool to assess whether a moderate increase in ICP has any influence on haemodynamics.
Other: Infusion
Infusion studies are performed in daily clinical routine to measure cerebrospinal fluid resistance outflow. During this test ICP is slowly and securely raised. Investigators plan to analyze what are the consequences of this ICP rise in terms of autonomic system and hemodynamics.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
change in sympathetic nerve activity after rise in ICP
Time Frame: within few minutes

Assessment of autonomic neural function using.

  1. microneurography to assess the muscle sympathetic nerve activity
  2. measurement of the plasma level changes of noradrenaline
  3. power spectral analysis of heart rate and arterial blood pressure
within few minutes

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
change in hemodynamics after rise in ICP
Time Frame: within few minutes

Assessment of haemodynamics

  1. Cerebral haemodynamics. using Transcranial doppler
  2. Systemic haemodynamics measured with photoplethysmography
within few minutes

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University Hospital, Toulouse

Investigators

  • Principal Investigator: Eric SCHMIDT, MD PhD, 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

January 1, 2009

Primary Completion (Actual)

May 1, 2011

Study Completion (Actual)

December 1, 2011

Study Registration Dates

First Submitted

January 23, 2013

First Submitted That Met QC Criteria

January 23, 2013

First Posted (Estimate)

January 28, 2013

Study Record Updates

Last Update Posted (Estimate)

February 25, 2013

Last Update Submitted That Met QC Criteria

February 22, 2013

Last Verified

February 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 07 299 03

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.

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