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  • Title: ENDOPHTHALMITIS AFTER TRANSCONJUNCTIVAL PARS PLANA VITRECTOMY: A 6-year Experience Without Prophylactic Intraoperative Subconjunctival Antibiotics.
    Author: LaGrow AL, Schatzman SN, Amayem OA, Bradford RH, Shah VA, Chen S, Lee SY.
    Journal: Retina; 2021 Mar 01; 41(3):531-537. PubMed ID: 32826794.
    Abstract:
    PURPOSE: This study aimed to investigate the incidence and risk factors of endophthalmitis after transconjunctival pars plana vitrectomy (PPV) without intraoperative subconjunctival antibiotics. DESIGN: Retrospective, consecutive case series at a single institution. METHODS: Consecutive cases of transconjunctival 25-gauge PPV without intraoperative subconjunctival antibiotics performed by three retina surgeons at a single surgical site at the Dean McGee Eye Institute from 2012 to 2018 were reviewed. RESULTS: Of 4,263 cases of PPV without intraoperative subconjunctival antibiotics, five cases (0.117%, 5/4,263) of post-PPV endophthalmitis were identified. Of these five cases, four cases (80%, 4/5) received combined cataract extraction or secondary intraocular lens implantation at the time of PPV. The incidence of endophthalmitis in isolated PPV was 0.027% (1/3,606 cases), whereas the incidence in combined PPV with anterior segment procedures was 0.608% (4/657 cases). Risk factors for endophthalmitis included diabetes mellitus, which was present in 80% of patients with endophthalmitis (4/5 cases). Causative organisms were identified in four of the five cases (80%), including Staphylococcus epidermidis (N = 3) and Propionibacterium acnes (N = 1). CONCLUSION: Performing transconjunctival PPV alone with standard preparation using povidone-iodine and postoperative topical antibiotics for 1 week without intraoperative subconjunctival antibiotics did not lead to an increase in incidence of postoperative endophthalmitis (1 per 3,606 cases).
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