1. Examining the efficacy of verteporfin photo-dynamic therapy (PDT) at different dose & fluence levels.
- Author
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Hurley DJ, Gallagher D, Petronzi V, O'Rourke M, Kinsella F, and Townley D
- Subjects
- Humans, Verteporfin therapeutic use, Photosensitizing Agents, Retrospective Studies, Treatment Outcome, Tomography, Optical Coherence, Photochemotherapy methods, Porphyrins, Macular Degeneration drug therapy, Central Serous Chorioretinopathy drug therapy, Hemangioma drug therapy, Telangiectasis chemically induced, Telangiectasis complications, Telangiectasis drug therapy
- Abstract
Objectives: Photodynamic therapy (PDT) is a vaso-occlusive treatment for a number of chorioretinal vascular pathologies. We aimed to retrospectively analyse efficiency and safety of PDT for different conditions (central serous retinopathy (CSR), age-related macular degeneration (AMD), macular telangiectasia type 2 and choroidal hemangioma) and with different verteporfin parameters., Methods: Clinical parameters were ascertained from the medical records of patients undergoing PDT over a 6-year period. This included indications for PDT, dosing regimens of verteporfin PDT (which includes treatment dose of verteporfin and fluence). Response to treatment was measured by best corrected visual acuity (BCVA) and central foveal thickness (CFT) on ocular coherence tomography. Complications and side effects were recorded., Results: 67.4 % (31/46) of PDT treatments performed over the last six years were for CSR. In the CSR cohort, there were significant improvements in BCVA (0.47 ± 0.24 to 0.29 ± 0.27, p < 0.05) and CFT (350.2μm ± 66.9 μm to 286.1μm ± 60.6 μm. In the AMD cohort, there was no change in BCVA (1.08 ± 0.52 to 1.07 ± 0.53, p = 0.96) but significant improvement in CFT (488.2μm ± 164.6 μm to 348.7μm ± 65.7 μm, p < 0.05). There was no significant difference in BCVA or CFT for macular telangiectasia type 2 and choroidal hemangioma., Conclusions: PDT continues to have a role in the management of medical retina conditions. Our results show PDT is most effective in improving and stabilizing visual acuity in CSR, with earlier intervention resulting in better outcomes., Competing Interests: Declaration of Competing Interests The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (Copyright © 2023 Elsevier B.V. All rights reserved.)
- Published
- 2023
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