Early Results of Goniotomy with the Kahook Dual Blade, a Novel Device for the Treatment of Glaucoma

Helen L Kornmann,1 Ronald L Fellman,1 William J Feuer,2 Michelle R Butler,1 David G Godfrey,1 Oluwatosin U Smith,1 Matthew E Emanuel,1 Davinder S Grover1 1Glaucoma Associates of Texas, Dallas, Texas, USA; 2Department of Ophthalmology, Bascom Palmer Eye Institute, Miami, Florida, USACorrespondence: H...

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Autores principales:	Kornmann HL, Fellman RL, Feuer WJ, Butler MR, Godfrey DG, Smith OU, Emanuel ME, Grover DS
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2019
Materias:	goniotomy kahook dual blade minimally invasive Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/a3773d87b86149ccb14dab07a71c2396
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spelling	oai:doaj.org-article:a3773d87b86149ccb14dab07a71c23962021-12-02T02:26:16ZEarly Results of Goniotomy with the Kahook Dual Blade, a Novel Device for the Treatment of Glaucoma1177-5483https://doaj.org/article/a3773d87b86149ccb14dab07a71c23962019-12-01T00:00:00Zhttps://www.dovepress.com/early-results-of-goniotomy-with-the-kahook-dual-blade-a-novel-device-f-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Helen L Kornmann,1 Ronald L Fellman,1 William J Feuer,2 Michelle R Butler,1 David G Godfrey,1 Oluwatosin U Smith,1 Matthew E Emanuel,1 Davinder S Grover1 1Glaucoma Associates of Texas, Dallas, Texas, USA; 2Department of Ophthalmology, Bascom Palmer Eye Institute, Miami, Florida, USACorrespondence: Helen L KornmannGlaucoma Associates of Texas, 10740 N. Central Expy, Suite 300, Dallas, TX 75231, USATel +1214 360-0000Fax +1214 360-0083Email hkornmann@glaucomaassociates.comPurpose: To report the outcomes of patients who underwent goniotomy with the Kahook Dual Blade (KDB) either as a standalone procedure or in combination with cataract extraction.Patients and methods: This retrospective chart review included 111 eyes of 90 patients who underwent KDB goniotomy from January to November 2016 at Glaucoma Associates of Texas. KDB goniotomy was combined with cataract surgery in 100 eyes. The main outcome measures were postoperative intraocular pressure (IOP) and number of IOP lowering medications.Results: Preoperatively, mean IOP was 17.1 ± 4.7 mmHg (range 8–34 mmHg) and mean number of IOP lowering medications was 2.4 ± 1.3 (range 0–6). Postoperatively, mean IOP was 14.9 mmHg, 13.9 mmHg, 14.1 mmHg, 14.4 mmHg, and 14.7 mmHg at 1, 3, 6, 9, and 12 months follow-up, respectively (all p <0.004). Mean numbers of IOP lowering medications were 0.8, 1.0, 1.0, 1.0, and 1.6 at 1, 3, 6, 9, and 12 months follow-up, respectively (all p <0.001). The cumulative reoperation rates for uncontrolled IOP after KDB were 0%, 1.0%, 2.1%, and 4.6% at 3, 6, 9, and 12 months, respectively. Eyes with a preoperative IOP >21 mmHg were significantly more likely to undergo reoperation (p = 0.038, log-rank test). There were no serious complications at any time point in the follow-up period.Conclusion: The Kahook Dual Blade results in a reduction in IOP and use of glaucoma medications after one year of follow-up. Further prospective studies are needed to fully characterize safety and efficacy.Keywords: goniotomy, kahook dual blade, minimally invasive  Kornmann HLFellman RLFeuer WJButler MRGodfrey DGSmith OUEmanuel MEGrover DSDove Medical Pressarticlegoniotomykahook dual blademinimally invasiveOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 13, Pp 2369-2376 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	goniotomy kahook dual blade minimally invasive Ophthalmology RE1-994
spellingShingle	goniotomy kahook dual blade minimally invasive Ophthalmology RE1-994 Kornmann HL Fellman RL Feuer WJ Butler MR Godfrey DG Smith OU Emanuel ME Grover DS Early Results of Goniotomy with the Kahook Dual Blade, a Novel Device for the Treatment of Glaucoma
description	Helen L Kornmann,1 Ronald L Fellman,1 William J Feuer,2 Michelle R Butler,1 David G Godfrey,1 Oluwatosin U Smith,1 Matthew E Emanuel,1 Davinder S Grover1 1Glaucoma Associates of Texas, Dallas, Texas, USA; 2Department of Ophthalmology, Bascom Palmer Eye Institute, Miami, Florida, USACorrespondence: Helen L KornmannGlaucoma Associates of Texas, 10740 N. Central Expy, Suite 300, Dallas, TX 75231, USATel +1214 360-0000Fax +1214 360-0083Email hkornmann@glaucomaassociates.comPurpose: To report the outcomes of patients who underwent goniotomy with the Kahook Dual Blade (KDB) either as a standalone procedure or in combination with cataract extraction.Patients and methods: This retrospective chart review included 111 eyes of 90 patients who underwent KDB goniotomy from January to November 2016 at Glaucoma Associates of Texas. KDB goniotomy was combined with cataract surgery in 100 eyes. The main outcome measures were postoperative intraocular pressure (IOP) and number of IOP lowering medications.Results: Preoperatively, mean IOP was 17.1 ± 4.7 mmHg (range 8–34 mmHg) and mean number of IOP lowering medications was 2.4 ± 1.3 (range 0–6). Postoperatively, mean IOP was 14.9 mmHg, 13.9 mmHg, 14.1 mmHg, 14.4 mmHg, and 14.7 mmHg at 1, 3, 6, 9, and 12 months follow-up, respectively (all p <0.004). Mean numbers of IOP lowering medications were 0.8, 1.0, 1.0, 1.0, and 1.6 at 1, 3, 6, 9, and 12 months follow-up, respectively (all p <0.001). The cumulative reoperation rates for uncontrolled IOP after KDB were 0%, 1.0%, 2.1%, and 4.6% at 3, 6, 9, and 12 months, respectively. Eyes with a preoperative IOP >21 mmHg were significantly more likely to undergo reoperation (p = 0.038, log-rank test). There were no serious complications at any time point in the follow-up period.Conclusion: The Kahook Dual Blade results in a reduction in IOP and use of glaucoma medications after one year of follow-up. Further prospective studies are needed to fully characterize safety and efficacy.Keywords: goniotomy, kahook dual blade, minimally invasive
format	article
author	Kornmann HL Fellman RL Feuer WJ Butler MR Godfrey DG Smith OU Emanuel ME Grover DS
author_facet	Kornmann HL Fellman RL Feuer WJ Butler MR Godfrey DG Smith OU Emanuel ME Grover DS
author_sort	Kornmann HL
title	Early Results of Goniotomy with the Kahook Dual Blade, a Novel Device for the Treatment of Glaucoma
title_short	Early Results of Goniotomy with the Kahook Dual Blade, a Novel Device for the Treatment of Glaucoma
title_full	Early Results of Goniotomy with the Kahook Dual Blade, a Novel Device for the Treatment of Glaucoma
title_fullStr	Early Results of Goniotomy with the Kahook Dual Blade, a Novel Device for the Treatment of Glaucoma
title_full_unstemmed	Early Results of Goniotomy with the Kahook Dual Blade, a Novel Device for the Treatment of Glaucoma
title_sort	early results of goniotomy with the kahook dual blade, a novel device for the treatment of glaucoma
publisher	Dove Medical Press
publishDate	2019
url	https://doaj.org/article/a3773d87b86149ccb14dab07a71c2396
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Early Results of Goniotomy with the Kahook Dual Blade, a Novel Device for the Treatment of Glaucoma

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