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  • Title: Phaco-trabeculotomy combined with deep sclerectomy, a new technique in combined cataract and glaucoma surgery: complication profile.
    Author: Lüke C, Dietlein TS, Lüke M, Konen W, Krieglstein GK.
    Journal: Acta Ophthalmol Scand; 2007 Mar; 85(2):143-8. PubMed ID: 17305727.
    Abstract:
    PURPOSE: Combined phacoemulsification, intraocular lens implantation and trabeculectomy (PTE) is currently the standard procedure for most ophthalmic surgeons for treating uncontrolled open-angle glaucoma and cataract at the same time. The present pilot study was designed to prospectively evaluate outcomes in glaucoma patients who underwent a new technique of phaco-trabeculotomy plus deep sclerectomy, with particular attention to the complication profile. METHODS: A consecutive series of 15 patients with uncontrolled open-angle glaucoma and cataract underwent combined glaucoma and cataract surgery. The procedure started as a two-site approach with phacoemulsification and intraocular lens (IOL) implantation through a temporal incision in clear cornea. Trabeculotomy and deep sclerectomy were performed in the superior quadrant. Postoperative examinations were performed daily for 1 week. Follow-up visits were carried out at 1, 3, 6 and 12 months after surgery. RESULTS: At 1 day post-surgery, mean intraocular pressure (IOP) was significantly reduced to 14.2 mmHg (SD 4.4). At 12 months post-surgery, the complete success rate, defined as IOP < 22 mmHg without medication, was 60%. Qualified success was achieved in 93.3% of patients. At 12 months post-surgery, the mean number of antiglaucoma medications had fallen to 0.4 (SD 0.6) (p < 0.001). Visual acuity improved by a mean value of 1.6 lines (SD 2.4) over baseline (p = 0.021). Specific complications such as choroidal deroofing, inadvertent perforation of the trabeculo-descemetic membrane, and non-identification of Schlemm's canal were seen among the patients in our trial. The incidence of complications due to overfiltration was low. A relatively high incidence of hyphaemas (53%) was noted in this series. All the hyphaemas were trivial and resolved quickly. No severe complications, such as bleb infection, endophthalmitis or choroidal haemorrhage were seen in this series. CONCLUSIONS: Phaco-trabeculotomy plus deep sclerectomy offered significant IOP reduction and a success rate that may be comparable with that of the current standard, PTE. Intra- and postoperative complications specific to deep sclerectomy and trabeculotomy were seen in our series, although the overall rate of postoperative complications proved low. Prospective comparative trials are needed to assess which of PTE and phaco-trabeculotomy plus deep sclerectomy is more successful.
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