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  • Title: [Combined pars-plana-vitrectomy and tectonic keratoplasty; indications for and results from 15 patients].
    Author: Bialasiewicz AA, Richard G.
    Journal: Klin Monbl Augenheilkd; 2000 Oct; 217(4):199-206. PubMed ID: 11098453.
    Abstract:
    BACKGROUND: Acute endophthalmitis requires a vitrectomy. Vitrectomy and autokeratoplasty has been reported, if the infection originates from a stromal keratitis in an aphakic eye. This retrospective non-randomized cohort study points out the requirements, indications and results of combined keratoplasty and vitrectomy in keratitis and endophthalmitis compared with noninfectious corneal and vitreoretinal problems. PATIENTS AND SURGERY: In 1995-1999, a vitrectomy and keratoplasty was performed on 15 patients (16 eyes), 10 of these with an endophthalmitis (median 71 years) and a follow-up of 2-60 months (median 19.3 months). 14 of 15 patients had had multiple prior surgery. Stromal keratitis as a sequela of keratoplasty was seen in 5 eyes (3x ruptured suture), 5x diffuse infiltration in compromised corneas (1x with a perforation, 2x with Fuchs' corneal dystrophy, 3x postoperative). In the patients without endophthalmitis 6 eyes were aphakic with corneal scars and no fundus visualization. Five eyes had a retinal detachment, one had an intraocular foreign body. An allogeneic keratoplasty was done in 14, and an allogeneic sclerokeratoplasty and an autologous sclerokeratoplasty in one eye each. RESULTS: Keratoplasty without keratoprosthesis allowed for fundus visualization, and a pars plana vitrectomy was done with a wide angle contact lens, 8x with C2F6-, 1x with silicone oil 5000 cs instillation, and gentamicin and 15 micrograms r-tPA added. In 5 vitrectomy specimens (50%) pathogenic bacteria were found. No recurrences of infection were seen. Conservation of the eyes and postoperative fundus visualization was possible in each case. The postoperative increase in visual acuity of 0.1 or better was significant in both patient groups. 2 eyes remained at preoperative levels, 14 ameliorated by > 1 lines. Complications were 1x directly postoperative graft decompensation, 1x rejection after 40 months, 6x persisting secondary glaucomas, 2x hypotony syndromes, 1x with phthisis and enucleation, 1x epiretinal gliosis. CONCLUSIONS: Curative surgery of acute keratitis and endophthalmitis by vitrectomy and keratoplasty may result in similarly successful outcomes as in noninfectious corneal scars and vitreoretinal pathology, if some requirements (e.g. adequate antibiotic treatment, graft material, skilled anterior and posterior segment surgeon) are fulfilled.
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