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KMID : 1813520170060010010
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Journal of the Korean Glaucoma Society
2017 Volume.6 No. 1 p.10 ~ p.15
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A Modified Tube Ligation Method during Ahmed Valve Implant Surgery
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Yun Il-Suk
Lee Mar-Vin
Ahn Jae-Hong
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Abstract
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Purpose : To investigate the efficacy of a modified tube ligation method to prevent early postoperative hypotony during Ahmed glaucoma valve (AGV) implant surgery.
Methods : In this study, 38 eyes of 38 patients who underwent AGV implantation were observed for at least 6 months after the surgery. After priming the valve, the tube was ligated using a temporary 6-0 Prolene intraluminal stent and an 8-0 Vicryl ligature. Intracameral injection of viscoelastics was performed at the end of the surgery if the anterior chamber became shallow during the procedures. Hypotony was defined as IOP < 6 mmHg.
Results : Early postoperative hypotony developed in 5 of 38 (13.2%) eyes and lasted for a mean 6.8 ± 3.8 (1?12) days. No patient required a surgical intervention related to the hypotony. IOP was > 21 mmHg in four (10.5%) eyes on the first postoperative day.
Conclusions : The modified tube ligation method, combining partial ligation of the tube and selective intraoperative viscoelastic injection, can reduce complications and interventions related to early postoperative hypotony after AGV implantation.
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KEYWORD
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Glaucoma, Implant surgery, Hypotony
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