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Kahook dual-blade goniotomy with and without phacoemulsification in medically uncontrolled glaucoma
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Ophthalmology.ORCID iD: 0000-0001-6025-2523
Division of Ophthalmology and Vision, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden; Department of Ophthalmology, Capio Sophiahemmet Hospital, Stockholm, Sweden.
Umeå University, Faculty of Medicine, Wallenberg Centre for Molecular Medicine at Umeå University (WCMM). Umeå University, Faculty of Medicine, Department of Clinical Sciences, Ophthalmology. Department of Ophthalmology, University of Iceland, Reykjavik, Iceland.ORCID iD: 0000-0003-0218-4563
2023 (English)In: Clinical Ophthalmology, ISSN 1177-5467, E-ISSN 1177-5483, Vol. 17, p. 1385-1394Article in journal (Refereed) Published
Abstract [en]

Purpose: To evaluate the 2-year efficacy and safety of Kahook dual-blade (KDB) goniotomy in patients with medically uncontrolled glaucoma.

Methods: This was a retrospective case-series study of 90 consecutive patients with primary open-angle glaucoma (POAG) or pseudoexfoliation glaucoma (PEXG) that underwent KDB goniotomy alone (KDB-alone group) or KDB goniotomy in combination with phacoemulsification (KDB-phaco group) during 2019–2020. All patients were uncontrolled on three or more medications. Surgical success was defined as an IOP reduction ≥20% and/or a reduction of one or more medications at 24 months. We also report IOP levels and number of medications from baseline to 24 months, as well as the need for further glaucoma interventions.

Results: At 24 months, mean IOP had reduced from 24.8±8.3 to 15.0±5.3 mmHg in the KDB-alone group (P<0.001) and from 22.3 ±5.8 to 13.9±3.0 mmHg in the KDB-phaco group (P<0.001). Medications had reduced from 3.5±0.6 to 3.1±0.9 in the KDB-alone group (P=0.047) and from 3.3±0.5 to 2.3±1.1 in the KDB-phaco group (P<0.001). An IOP reduction ≥20% and/or a reduction with one or more medications was achieved by 47% of eyes in the KDB-alone group and by 76% of eyes in the KDB-phaco group. Eyes with PEXG and POAG responded equally well to the success criteria. During the 24-month follow-up, additional glaucoma surgery or transscleral photocoagulation was performed in 28% of eyes in the KDB-alone group and in 12% of eyes in the KDB-phaco group.

Conclusion: In patients with medically uncontrolled glaucoma, KDB had a significant IOP-lowering effect after 24 months, but success rates were higher when KDB was performed in combination with cataract surgery compared to stand-alone treatment.

Place, publisher, year, edition, pages
Dove press , 2023. Vol. 17, p. 1385-1394
Keywords [en]
Kahook dual blade, medically uncontrolled glaucoma, phacoemulsification, primary open-angle glaucoma, pseudoexfoliation glaucoma
National Category
Ophthalmology
Identifiers
URN: urn:nbn:se:umu:diva-209192DOI: 10.2147/OPTH.S409375ISI: 000992915500001PubMedID: 37204995Scopus ID: 2-s2.0-85160225264OAI: oai:DiVA.org:umu-209192DiVA, id: diva2:1765831
Funder
Region Jämtland HärjedalenRegion VästerbottenKnut and Alice Wallenberg FoundationAvailable from: 2023-06-12 Created: 2023-06-12 Last updated: 2024-01-15Bibliographically approved

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Barkander, AnnaJóhannesson, Gauti

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