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Sponsored by: |
Asociación para Evitar la Ceguera en México |
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Information provided by: | Asociación para Evitar la Ceguera en México |
ClinicalTrials.gov Identifier: | NCT00500396 |
Vascular Endothelial Growth Factor (VEGF) is a dimeric glycoprotein, naturally expressed in epithelial and tumor cells (1). Normal Retinal vascularization has two phases: In the first fase, cells of mesenquimatous origin form the first superficial plexus (14-21 weeks of gestation). In the second phase, denominated "angiogenesis phase", the superficial and deep capillary plexus are formed (15,20). The Retinopathy of Prematurity (ROP) was described for the first time in 1942 (4), at the present moment it is a public health problem in the developing countries. The International Classification of ROP classifies it in 5 stages, dividing it in 3 anatomical zones. It is a public health problem that continuous without having an effective prophylaxis. The early diagnosis and treatment in thresholds stages have changed the prognosis of this disease (11,12).
Condition | Intervention | Phase |
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Retinopathy of Prematurity |
Procedure: Open-Sky Vitrectomy |
Phase IV |
Study Type: | Interventional |
Study Design: | Basic Science, Open Label, Uncontrolled, Single Group Assignment |
Official Title: | Vascular Endothelial Growth Factor Levels in Aqueous, Vitreous and Subretinal Fluid in Patients With Retinopathy of Prematurity Stage V. |
Estimated Enrollment: | 15 |
Study Start Date: | March 2007 |
Study Completion Date: | June 2007 |
Ages Eligible for Study: | 2 Months to 10 Years |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
Mexico, DF | |
Asociación para Evitar la Ceguera en Mexico | |
Mexico, DF, Mexico, 04030 |
Principal Investigator: | Hugo Quiroz-Mercado, MD | Asociación para Evitar la Ceguera en México |
Principal Investigator: | Raul Velez-Montoya, MD | Asociación para Evitar la Ceguera en Mexico |
Study ID Numbers: | VEGFROP |
Study First Received: | July 10, 2007 |
Last Updated: | November 21, 2007 |
ClinicalTrials.gov Identifier: | NCT00500396 |
Health Authority: | Mexico: National Institute of Public Health, Health Secretariat |
Retinopathy of Prematurity. ROP. Vascular Endothelial Growth Factor. VEGF. |
Vitreous. Subretinal Fluid. ELISA. |
Eye Diseases Retinopathy of prematurity Infant, Newborn, Diseases Infant, Premature, Diseases |
Retinopathy of Prematurity Endothelial Growth Factors Retinal Diseases |
Growth Substances Physiological Effects of Drugs Pharmacologic Actions |