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  • Title: Erosive Retinopathy and Retinal Detachment From Depot Intravitreal Triamcinolone Acetonide Injection at the End of Pars Plana Vitrectomy.
    Author: Sisk RA, Patel YP, Foster RE, Petersen MR.
    Journal: Ophthalmic Surg Lasers Imaging Retina; 2019 Oct 01; 50(10):613-619. PubMed ID: 31671193.
    Abstract:
    BACKGROUND AND OBJECTIVE: Intravitreal triamcinolone acetonide (IVTA) used as a surgical adjuvant for pars plana vitrectomy (PPV) can stain cortical vitreous, control postoperative inflammation, and reduce retinal edema. Sterile endophthalmitis uncommonly complicates office-based IVTA injection. The authors report a new complication of IVTA depot injection at the end of PPV. PATIENTS AND METHODS: Retrospective records review of all patients treated at the Cincinnati Eye Institute with PPV between January 1, 2011, and December 31, 2017, who developed a triad of sterile endophthalmitis, atrophic retinal breaks under the depot IVTA in the inferior retina, and rhegmatogenous retinal detachment (RRD). Eyes with flap tears, solely superior breaks, or stretch holes from proliferative vitreoretinopathy causing RRD were excluded. RESULTS: Eight eyes of eight patients (four males and four females; mean age: 73.7 years) who received 4 mg or 8 mg IVTA depot at the end of PPV surgery presented at a mean of 23.5 days following PPV with RRD (one macula-involving, seven macula-sparing), requiring treatment with PPV in six eyes and laser retinopexy alone in two eyes. Seven eyes that underwent membrane peeling (MP) received IVT to prevent cystoid macular edema (CME) and one eye with prior MP was treated for CME. Mean vitreous inflammation was 2+ cell at 1 week postoperatively. Two patients had documented sterile endophthalmitis within the first week requiring vitreous cultures and antibiotics injections. Visual acuity (VA) for eyes requiring PPV for RD repair declined from 20/90 preoperatively to 20/212 at 6 months postoperatively. VA for eyes amenable to laser alone improved from 20/53 to 20/35. All eyes remained attached, with the exception of one patient who refused further treatment after developing recurrent detachment from PVR. CONCLUSIONS: Particle-induced sterile endophthalmitis from IVTA depot at the end of PPV surgery resulted in atrophic inferior retinal breaks and RRD as a newly described entity coined "erosive retinopathy." All retinal detachment surgeries required silicone oil tamponade. Poor visual outcome at 6 months was common for eyes requiring PPV for RD repair. The authors recommend avoiding IVTA depot injection at the end of PPV. [Ophthalmic Surg Lasers Imaging Retina. 2019;50:613-619.].
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