Retinal Ganglion Cell Layer in Patients With Intracerebral Processes

May 24, 2017 updated by: University of Zurich

Transsynaptic degeneration of the retinogeniculate pathways is well documented to occur in nonhuman primates when the cerebral lesion occurs even during adulthood. In case of humans, retrograde transsynaptic degeneration of the retinogeniculate pathways has been shown to occur following prenatal or perinatal lesions, but its occurrence after cerebral lesions in adults is considerable rare. It is, however, well established that retrograde transsynaptic degeneration affects other neural systems in humans even when the injury occurs during adulthood. Some histopathological evidence points to the possibility of transsynaptic degeneration of the retinogeniculate pathway in humans even when the lesion occurs in adults, but the clinical significance is unknown.'

Purpose:

To measure the retinal ganglion cell layer (GCL) in patients with visual field defects due to intracerebral processes. To correlate GCL with the localization and type of intracerebral lesion.

To compare the GCL with the retinal nerve fibre layer (RNFL) to investigate, which of the 2 parameters is more sensitive to show retinal layer abnormalities.

To correlate GCL with visual field defects and electrophysiological parameters.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

20

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

  • Switzerland
      • Zurich, Switzerland
        • University Hospital Zurich

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 to 60 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

patients with intracerebral lesions

Description

Inclusion Criteria:

  • adult patients with intracerebral lesions within the central visual tract
  • associated visual field defects
  • investigations (OCT, ERG) possible

Exclusion Criteria:

  • lesions within the optic nerve without extension in the optic tract
  • neurological disease
  • optic disc anomalies: glaucoma, nystagmus, high myopia

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Ganglion cell thickness
Time Frame: measurements will be taken at a minimum of 4 weeks after the inital diagnosis
measurements will be taken at a minimum of 4 weeks after the inital diagnosis

Collaborators and Investigators

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

Sponsor

University of Zurich

Investigators

  • Principal Investigator: Christina Gerth-Kahlert, MD, University of Zurich

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

March 1, 2015

Primary Completion (Actual)

December 1, 2015

Study Completion (Actual)

May 1, 2016

Study Registration Dates

First Submitted

March 5, 2015

First Submitted That Met QC Criteria

March 30, 2015

First Posted (Estimate)

April 3, 2015

Study Record Updates

Last Update Posted (Actual)

May 25, 2017

Last Update Submitted That Met QC Criteria

May 24, 2017

Last Verified

May 1, 2017

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2014-0649

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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