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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Brannath, Werner Ergun, Erdem Frantal, Sophie Boltz, Agnes Stur, Michael Luksch, Alexandra Maar, Noemi Wimpissinger, Barbara Schmetterer, Leopold Garhöfer, Gerhard Weigert, Günther |
| Description | Country affiliation: Austria Author Affiliation: Boltz A ( Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria.) |
| Abstract | PURPOSE: Cardiovascular risk factors such as smoking, hypertension, and atherosclerosis seem to play an important role in the development of choroidal neovascularization (CNV). Recent studies have also provided evidence suggesting that choroidal and retinal blood flow is decreased in patients with AMD. On the basis of these results, the hypothesis for this study was that lower choroidal blood flow is associated with an increased risk of CNV in patients with AMD. METHODS: Forty-one patients with unilateral choroidal neovascular AMD were included in this observational longitudinal study. The fellow eyes of the patients served as study eyes. Subfoveal choroidal blood flow (FLOW) and fundus pulsation amplitude (FPA) were assessed with laser Doppler flowmetry and laser interferometry, respectively. A multivariate COX-regression model was used to test the hypothesis that low choroidal perfusion parameters are associated with the development of CNV. RESULTS: Of the 37 patients that were followed up until the end of the study, 17 developed CNV and 20 did not. The univariate COX-regression analysis shows that lower FLOW, systolic blood pressure, intraocular pressure, and FPA are risk factors for development of CNV. Moreover, the more advanced the AMD in the study eye, the higher the risk for CNV to develop in the fellow eye. Multivariate COX regression analysis indicated that only FLOW (P = 0.0071), FPA (P = 0.0068), and staging (P = 0.031) had statistically significant influences on the progression to CNV. CONCLUSIONS: The present study indicates that lower choroidal perfusion is a risk factor for the development of CNV in the fellow eye of patients with unilateral CNV. |
| ISSN | 01460404 |
| e-ISSN | 15525783 |
| Journal | Investigative Opthalmology & Visual Science |
| Issue Number | 8 |
| Volume Number | 51 |
| Language | English |
| Publisher | Association for Research in Vision and Ophthalmology |
| Publisher Date | 2010-08-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Choroid Blood Supply Choroidal Neovascularization Physiopathology Macular Degeneration Blood Flow Velocity Physiology Blood Pressure Disease Progression Interferometry Intraocular Pressure Laser-doppler Flowmetry Regional Blood Flow Risk Factors Discipline Ophthalmology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ophthalmology Sensory Systems Cellular and Molecular Neuroscience |
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