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| Sponsors and Collaborators: |
University of Sao Paulo Fundação de Amparo à Pesquisa do Estado de São Paulo |
|---|---|
| Information provided by: | University of Sao Paulo |
| ClinicalTrials.gov Identifier: | NCT00553761 |
Purpose
The study is designed to evaluate the ability of pattern electroretinogram (PERG) and multifocal pattern electroretinogram (mfPERG) to measure and identify the pattern of band atrophy of the optic nerve in patients with long standing chiasmal lesions. The hypothesis is that these electrophysiological tests were able to identify this such pattern. The idea is to investigate the ability of the these electrophysiological technics in detecting the neural loss from chiasmal compression and to evaluate the ability of PERG and mfPERG parameters to differentiate between eyes with band atrophy of the optic nerve and healthy eyes.
| Condition | Intervention |
|---|---|
|
Band Atrophy |
Device: Pattern electroretinogram |
| Study Type: | Observational |
| Study Design: | Cohort, Prospective |
| Official Title: | Pattern Electroretinogram and Multifocal Pattern Electroretinogram For the Detection of Neural Loss in Patients With Permanent Temporal Visual Field Defect From Chiasmal Compression |
| Estimated Enrollment: | 30 |
| Study Start Date: | August 2006 |
| Estimated Study Completion Date: | February 2008 |
Eligibility| Ages Eligible for Study: | 18 Years to 75 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | Yes |
| Sampling Method: | Non-Probability Sample |
Patients with band atrophy from chismal compression and controls
Inclusion Criteria:
Exclusion Criteria:
Contacts and Locations| Contact: Leonardo P Cunha, MD | 55 11 91465934 | leonardo_provetti@yahoo.com.br |
| Contact: Mário L. R. Monteiro, PhD | 55 11 3069 7871 | mlrmonteiro@terra.com.br |
| Brazil | |
| Universidade de São Paulo | Recruiting |
| São Paulo, Brazil, 05403-000 | |
| Contact: Leonardo P Cunha, MD 55 11 91465934 leonardo_provetti@yahoo.com.br | |
| Principal Investigator: Leonardo P Cunha, MD | |
| Study Chair: | Mário Luiz R Monteiro, PhD | Universidade de São Paulo |
More Information
| Responsible Party: | University of Sao Paulo ( Mario Luiz Ribeiro Monteiro/University of Sao Paulo ) |
| Study ID Numbers: | 654/06, FAPESP 06/61549-6; 07/54142-0) |
| Study First Received: | November 5, 2007 |
| Last Updated: | January 28, 2008 |
| ClinicalTrials.gov Identifier: | NCT00553761 History of Changes |
| Health Authority: | Brazil: National Committee of Ethics in Research |
|
Band atrophy Pattern electroretinogram Chiasmal compression Neural loss Electrophysiological tests |
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Pathological Conditions, Anatomical Atrophy Scotoma |
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Pathological Conditions, Anatomical Atrophy |
