Photodiagnosis and photodynamic therapy · 2022
Choroidal and retinal anatomical response following treatment of carotid-ophthalmic aneurysms with flow diverter stents.
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Biberoğlu Çelik Esra, Haidar Hassan, Eraslan Muhsin, Baltacioglu Feyyaz
Аннотация
BACKGROUND: Flow diverter stents(FDSs) are recent additions to the endovascular armament for treating ophthalmic segment aneurysms(OSA). In our study we evaluated the long-term effect of FDS placement on multiple Optical Coherence Tomography(OCT) findings, best corrected visual acuity(BCVA) and intra-ocular pressure(IOP).
METHODS: A prospective cohort study was conducted in 35 patients treated with a single FDS placement for OSA, between 2013 and 2018. Spectral-domain OCT was used to measure retinal nerve fiber layer thickness, ganglion cell complex thickness, subfoveal choroidal thickness(SFCT), and other stereometric parameters. Choroidal Vascularity Index(CVI) in a 1.5 mm wide subfoveal choroidal area was calculated. BCVA and IOP were also assessed. These measurements, at final follow up, were compared to the untreated fellow eye to evaluate the long-term effect of FDS placement.
RESULTS: This study included 70 eyes from 35 patients (100% female) with a mean age of 54.9 ± 9.8 years and mean follow-up period of 37.3 ± 18.9 months. No ophthalmic artery occlusion was encountered. The mean CVI was significantly higher in the stented side compared to the fellow normal eye (66.90±1.95 vs 65.05±1.93, p=.001) while mean SFCT was significantly reduced (251.23±68.54 vs 288.78±78.95, p=.037). Differences in the remaining studied parameters did not reach statistical significance. The difference in BCVA between stented and fellow normal eyes was also not significant (0.057±0.213 vs 0.060±0.214, p=.977 in logMAR).
CONCLUSION: Treatment with FDSs did not cause permanent visual damage. This study is the first to report a decrease in SFCT with a compensatory increase in CVI following FDS placement for OSA.
METHODS: A prospective cohort study was conducted in 35 patients treated with a single FDS placement for OSA, between 2013 and 2018. Spectral-domain OCT was used to measure retinal nerve fiber layer thickness, ganglion cell complex thickness, subfoveal choroidal thickness(SFCT), and other stereometric parameters. Choroidal Vascularity Index(CVI) in a 1.5 mm wide subfoveal choroidal area was calculated. BCVA and IOP were also assessed. These measurements, at final follow up, were compared to the untreated fellow eye to evaluate the long-term effect of FDS placement.
RESULTS: This study included 70 eyes from 35 patients (100% female) with a mean age of 54.9 ± 9.8 years and mean follow-up period of 37.3 ± 18.9 months. No ophthalmic artery occlusion was encountered. The mean CVI was significantly higher in the stented side compared to the fellow normal eye (66.90±1.95 vs 65.05±1.93, p=.001) while mean SFCT was significantly reduced (251.23±68.54 vs 288.78±78.95, p=.037). Differences in the remaining studied parameters did not reach statistical significance. The difference in BCVA between stented and fellow normal eyes was also not significant (0.057±0.213 vs 0.060±0.214, p=.977 in logMAR).
CONCLUSION: Treatment with FDSs did not cause permanent visual damage. This study is the first to report a decrease in SFCT with a compensatory increase in CVI following FDS placement for OSA.