期刊论文详细信息
BMC Ophthalmology
Xen45 gel stent ab interno trimming for ostium occlusion: case report
Pietro Gentile1  Filippo Tatti1  Maurizio Fossarello1  Giuseppe Demarinis1  Pietro Napoli1  Lorenzo Mangoni1 
[1] Department of Surgical Sciences, Eye Clinic, University of Cagliari, Via Ospedale 48, 09124, Cagliari, Italy;
关键词: Glaucoma;    MIGS;    XEN;    Complications;    Case report;   
DOI  :  10.1186/s12886-021-02207-8
来源: Springer
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【 摘 要 】

BackgroundDespite the XEN gel stent low-risk profile, various complications following the implant have been described, including internal and external occlusion, with a consequent postoperative rise in intraocular pressure (IOP). In this case report we aimed to present a XEN45 stent internal occlusion successfully treated by trimming in situ its proximal end with a 25 G vitreous scissors using a bimanual technique.Case presentationA 63-year-old male patient affected by primary open angle glaucoma (IOP = 25 mmHg) and a full thickness macular hole in his right eye, underwent ab-interno Xen gel stent implantation and, 1 month later, a 25 G vitrectomy surgery. Despite a significant IOP reduction after stent implant, 6 days after vitrectomy, IOP increased (25 mmHg) and the conjunctival bleb flattened following occlusion of stent internal ostium by a clot of presumed fibrinous material. The Nd:YAG laser failed to remove the clot, so that we decided to snip a small bit of the proximal end of the Xen tube (about 0,5 mm length) with a 25 G vitreous scissors, using a bimanual technique. In the postoperative day 1 and month 1, the IOP was 8 mmHg and 12 mmHg, respectively. The Anterior Segment OCT confirmed a functional, layered, filtering bleb, and the normal appearance and patency of the XEN proximal segment. No side effects from the intervention were observed.ConclusionsAb interno trimming with vitreous scissors of the occluded proximal end of the XEN stent may represent a safe, rapid and efficient method to restore aqueous humor subconjunctival drainage.

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