The Influence of Phacoemulsification on Surgical Outcomes of Trabeculectomy with Mitomycin-C for Uveitic Glaucoma

To evaluate the influence of phacoemulsification after trabeculectomy on the postoperative intraocular pressure (IOP) in eyes with uveitic glaucoma (UG). Kumamoto University Hospital, Kumamoto, Japan. A retrospective cohort study. The medical records of patients with UG who had trabeculectomy with m...

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Published inPloS one Vol. 11; no. 3; p. e0151947
Main Authors Nishizawa, Asaho, Inoue, Toshihiro, Ohira, Saori, Takahashi, Eri, Saruwatari, Junji, Iwao, Keiichiro, Tanihara, Hidenobu
Format Journal Article
LanguageEnglish
Published United States Public Library of Science 18.03.2016
Public Library of Science (PLoS)
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Summary:To evaluate the influence of phacoemulsification after trabeculectomy on the postoperative intraocular pressure (IOP) in eyes with uveitic glaucoma (UG). Kumamoto University Hospital, Kumamoto, Japan. A retrospective cohort study. The medical records of patients with UG who had trabeculectomy with mitomycin-C (MMC) were reviewed. Complete and qualified surgical failures were defined by an IOP of ≥21 mmHg (condition A), ≥18 mmHg (condition B), or ≥15 mmHg (condition C) without and with glaucoma eye drops, respectively. Kaplan-Meier survival analysis, generalized by the Wilcoxon test, and the Cox proportional hazards model analysis were conducted. Post-trabeculectomy phacoemulsification was treated as a time-dependent variable. In 24 (30%) of the included 80 eyes, phacoemulsification was included, and they were divided into two groups: groups I (8 eyes with phacoemulsification within 1 year after trabeculectomy) and group II (16 eyes after 1 year following trabeculectomy). Multivariable Cox proportional hazards model analysis showed post-trabeculectomy phacoemulsification was a significant factor in both complete success and qualified success based upon condition C (P = 0.0432 and P = 0.0488, respectively), but not for the other conditions. Kaplan-Meier survival analyses indicated significant differences in success probabilities between groups I and group II for complete success and qualified success based upon condition C (P = 0.020 and P = 0.013, respectively). There was also a significant difference for qualified success based upon condition B (P = 0.034), while there was no significant difference for the other conditions. Post-trabeculectomy phacoemulsification, especially within 1 year, can cause poor prognosis of IOP control of UG eyes after trabeculectomy with MMC.
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Conceived and designed the experiments: TI HT. Performed the experiments: AN SO ET KI. Analyzed the data: TI JS. Contributed reagents/materials/analysis tools: JS. Wrote the paper: AN TI.
Competing Interests: The authors have declared that no competing interests exist.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0151947