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Trabeculotomy was effective in two cases of re-elevated intraocular pressure after tube shunt implantation Akikazu Sumino 1 , Michiko Maeda 1 , Mari Ueki 2 , Yuri Takada 1 , Emika Nemoto 1 , Ryohsuke Kohmoto 1 , Shota Kojima 1 , Tetsuya Sugiyama 1 , Teruyo Kida 1 , Tsunehiko Ikeda 3 1Department of Ophthalmology, Osaka Medical and Pharmaceutical University 2Nagata Eye Clinic 3Department of Ophthalmology, Osaka Kaisei Hospital pp.899-904
Published Date 2022/7/15
DOI https://doi.org/10.11477/mf.1410214435
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Abstract Purpose:To report on the efficacy of trabeculotomy(LOT)for re-elevated intraocular pressure(IOP)with corneal endothelium disability after tube shunt implantation.

Cases:Case 1 was a 75-year-old man. He underwent LOT in 2001 and combined phacotrabeculectomy in 2012 for open-angle glaucoma of the left eye. However, since the IOP increased again, tube shunt implantation with a Baerveldt glaucoma implant(BGI)was performed in 2013. Three years after the operation, the IOP increased again, and a re-operation was performed in 2019 because of the re-elevated IOP even after tube flushing. Corneal endothelial cell density(CECD)decreased to 1,181 cells/mm2 because LOT was performed ab interno with a tube flush. The IOP was stable at 15 mmHg, CECD became 1,013 cells/mm2, and the cornea remained clear 2 year postoperatively.

Case 2 was a 57-year-old woman. She underwent trabeculectomy(LET)in 2015, and bleb revision and LET again at another quadrant in 2016 for secondary glaucoma due to uveitis in the right eye. However, since the IOP increased again, a cataract surgery and tube shunt implantation with BGI were performed in 2016. Four years after the operation, the IOP increased again. A re-operation was performed in 2020. CECD decreased to 1,162 cells/mm2 because LOT was performed ab interno and externo. After the operation, the IOP decreased to 11 mmHg, but bullous keratopathy developed.

Conclusion:LOT may be an effective procedure for cases with re-elevated IOP after tube shunt implantation, but cases with expected fragility of the corneal endothelium should be handled with care.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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