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eISSN: 2719-3209
ISSN: 0023-2157
Klinika Oczna / Acta Ophthalmologica Polonica
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3/2020
vol. 122
 
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abstract:
Original paper

Ab interno goniotomy with a Kahook Dual Blade in 6-month follow-up

Anna Majer
1, 2
,
Magdalena Kaszuba-Modrzejewska
1, 2
,
Marzena Petrus
1
,
Bartłomiej Kałużny
1, 2

  1. Division of Ophthalmology and Optometry, Department of Ophthalmology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland
  2. Oftalmika Eye Hospital in Bydgoszcz, Poland
KLINIKA OCZNA 2020, 122, 3: 105–111
Online publish date: 2020/10/05
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Aim of the study
Evaluation of ab interno goniotomy using a Kahook Dual Blade in combination with phacoemulsification in patients with primary open angle glaucoma during a 6-month follow-up.

Material and methods
75 patients with mild and moderately advanced primary open angle glaucoma, who had phacoemulsification combined with ab interno goniotomy using a Kahook Dual Blade (New World Medical, USA), were included in this analysis. The average age was 68.4 ±8.9 years. Mean pre- and postoperative intraocular pressure, number of antiglaucoma medications, complications of the surgery and need for another procedure were analysed in the 6-month follow-up.

Results
Before the surgery, mean intraocular pressure was 21.9 ±3.9 mmHg and the number of antiglaucoma medications was 2.2 ±1.2. A reduction in intraocular pressure of 17.53% and a decrease in number of antiglaucoma medications of 60% (p < 0.001) were observed in the 6-month follow-up. There was slight intra-operative bleeding into the anterior chamber from the incision in all cases. On the first days after surgery there were diffuse blood cells or a clot in the anterior chamber in 38% of eyes. Increase in intraocular pressure above 25 mmHg on the first day after surgery was observed in 30.6% of eyes. In one eye there was no postoperative intraocular pressure stabilisation and laser cyclodestruction was performed.

Conclusions
Ab interno goniotomy performed simultaneously with phacoemulsification results in a significant reduction in intraocular pressure and a decrease in the number of anti-glaucoma drugs used. The treatment is characterized by a good safety profile and does not require intensive postoperative management.

keywords:

ab interno goniotomy, MIGS, minimally invasive glaucoma surgery, Kahook Dual Blade, glaucoma

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