Skip to main content
Top
Published in: Japanese Journal of Ophthalmology 6/2017

01-11-2017 | Clinical Investigation

Effectiveness and safety of combined cataract surgery and microhook ab interno trabeculotomy in Japanese eyes with glaucoma: report of an initial case series

Authors: Masaki Tanito, Yoshifumi Ikeda, Etsuko Fujihara

Published in: Japanese Journal of Ophthalmology | Issue 6/2017

Login to get access

Abstract

Purpose

To report the early postoperative results and safety profile of ab interno microhook trabeculotomy (μLOT) combined with cataract surgery.

Patients and methods

This retrospective observational case series included 68 consecutive glaucomatous eyes of 23 Japanese men and 25 Japanese women [mean (SD) age, 76.0 ± 8.5 years] who underwent μLOT for intraocular pressure (IOP) and visually relevant cataracts. The LOT site/extent, perioperative complications, and complication treatments were collected from the medical and surgical records. The preoperative and postoperative IOP, numbers of antiglaucoma medications, logarithm of the minimum angle of resolution visual acuity (VA), anterior chamber (AC) flare, and corneal endothelial cell density (CECD) were compared.

Results

After small incisional cataract surgery, the trabecular meshwork was incised in the nasal (6 eyes, 3.6 ± 0.5 clock hours), temporal (6 eyes, 3.8 ± 0.8 clock hours), or both nasal and temporal (56 eyes, 6.5 ± 0.6 clock hours) angles. The mean preoperative IOP (16.4 ± 2.9 mmHg) and number of antiglaucoma medications (2.4 ± 1.2) decreased significantly (P < 0.0001 and P = 0.0039, respectively) to 11.8 ± 4.5 and 2.1 ± 1.0 mmHg at 9.5 months postoperatively. Compared with the preoperative conditions, the final VA improved (P = 0.0002), the AC flare increased by 6.3 pc/ms (P = 0.0157), and the CECD decreased by 6% (P = 0.0005). Hyphema with niveau formation (28 eyes, 41%) and hyphema washout (6 eyes, 9%) were the most common postoperative complication and intervention, respectively. At the final visit, 54 eyes (79%) had achieved successful IOP control of 15 mmHg or less and IOP reduction of 15% or greater.

Conclusion

Combined μLOT and cataract surgery improves IOP and VA during the early postoperative period in patients with glaucoma and cataract.
Appendix
Available only for authorised users
Literature
1.
go back to reference Chihara E, Nishida A, Kodo M, Yoshimura N, Matsumura M, Yamamoto M, et al. Trabeculotomy ab externo: an alternative treatment in adult patients with primary open-angle glaucoma. Ophthalmic Surg. 1993;24:735–9.PubMed Chihara E, Nishida A, Kodo M, Yoshimura N, Matsumura M, Yamamoto M, et al. Trabeculotomy ab externo: an alternative treatment in adult patients with primary open-angle glaucoma. Ophthalmic Surg. 1993;24:735–9.PubMed
2.
go back to reference Tanihara H, Negi A, Akimoto M, Terauchi H, Okudaira A, Kozaki J, et al. Surgical effects of trabeculotomy ab externo on adult eyes with primary open angle glaucoma and pseudoexfoliation syndrome. Arch Ophthalmol. 1993;111:1653–61.CrossRefPubMed Tanihara H, Negi A, Akimoto M, Terauchi H, Okudaira A, Kozaki J, et al. Surgical effects of trabeculotomy ab externo on adult eyes with primary open angle glaucoma and pseudoexfoliation syndrome. Arch Ophthalmol. 1993;111:1653–61.CrossRefPubMed
3.
go back to reference Tanito M, Ohira A, Chihara E. Surgical outcome of combined trabeculotomy and cataract surgery. J Glaucoma. 2001;10:302–8.CrossRefPubMed Tanito M, Ohira A, Chihara E. Surgical outcome of combined trabeculotomy and cataract surgery. J Glaucoma. 2001;10:302–8.CrossRefPubMed
4.
go back to reference Tanito M, Ohira A, Chihara E. Factors leading to reduced intraocular pressure after combined trabeculotomy and cataract surgery. J Glaucoma. 2002;11:3–9.CrossRefPubMed Tanito M, Ohira A, Chihara E. Factors leading to reduced intraocular pressure after combined trabeculotomy and cataract surgery. J Glaucoma. 2002;11:3–9.CrossRefPubMed
5.
go back to reference Kashiwagi K, Kogure S, Mabuchi F, Chiba T, Yamamoto T, Kuwayama Y, et al. Change in visual acuity and associated risk factors after trabeculectomy with adjunctive mitomycin C. Acta Ophthalmol. 2016;94:e561–70.CrossRefPubMed Kashiwagi K, Kogure S, Mabuchi F, Chiba T, Yamamoto T, Kuwayama Y, et al. Change in visual acuity and associated risk factors after trabeculectomy with adjunctive mitomycin C. Acta Ophthalmol. 2016;94:e561–70.CrossRefPubMed
6.
go back to reference Beck AD, Lynch MG. 360 degrees trabeculotomy for primary congenital glaucoma. Arch Ophthalmol. 1995;113:1200–2.CrossRefPubMed Beck AD, Lynch MG. 360 degrees trabeculotomy for primary congenital glaucoma. Arch Ophthalmol. 1995;113:1200–2.CrossRefPubMed
7.
go back to reference Chin S, Nitta T, Shinmei Y, Aoyagi M, Nitta A, Ohno S, et al. Reduction of intraocular pressure using a modified 360-degree suture trabeculotomy technique in primary and secondary open-angle glaucoma: a pilot study. J Glaucoma. 2012;21:401–7.CrossRefPubMed Chin S, Nitta T, Shinmei Y, Aoyagi M, Nitta A, Ohno S, et al. Reduction of intraocular pressure using a modified 360-degree suture trabeculotomy technique in primary and secondary open-angle glaucoma: a pilot study. J Glaucoma. 2012;21:401–7.CrossRefPubMed
8.
go back to reference Dao JB, Sarkisian SR Jr, Freedman SF. Illuminated microcatheter-facilitated 360-degree trabeculotomy for refractory aphakic and juvenile open-angle glaucoma. J Glaucoma. 2014;23:449–54.CrossRefPubMed Dao JB, Sarkisian SR Jr, Freedman SF. Illuminated microcatheter-facilitated 360-degree trabeculotomy for refractory aphakic and juvenile open-angle glaucoma. J Glaucoma. 2014;23:449–54.CrossRefPubMed
9.
go back to reference Grover DS, Godfrey DG, Smith O, Feuer WJ, Montes de Oca I, Fellman RL. Gonioscopy-assisted transluminal trabeculotomy, ab interno trabeculotomy: technique report and preliminary results. Ophthalmology. 2014;121:855–61.CrossRefPubMed Grover DS, Godfrey DG, Smith O, Feuer WJ, Montes de Oca I, Fellman RL. Gonioscopy-assisted transluminal trabeculotomy, ab interno trabeculotomy: technique report and preliminary results. Ophthalmology. 2014;121:855–61.CrossRefPubMed
10.
go back to reference Sato T, Hirata A, Mizoguchi T. Outcomes of 360 degrees suture trabeculotomy with deep sclerectomy combined with cataract surgery for primary open angle glaucoma and coexisting cataract. Clin Ophthalmol. 2014;8:1301–10.CrossRefPubMedPubMedCentral Sato T, Hirata A, Mizoguchi T. Outcomes of 360 degrees suture trabeculotomy with deep sclerectomy combined with cataract surgery for primary open angle glaucoma and coexisting cataract. Clin Ophthalmol. 2014;8:1301–10.CrossRefPubMedPubMedCentral
11.
go back to reference Sato T, Hirata A, Mizoguchi T. Prospective, noncomparative, nonrandomized case study of short-term outcomes of 360 degrees suture trabeculotomy ab interno in patients with open-angle glaucoma. Clin Ophthalmol. 2015;9:63–8.CrossRefPubMedPubMedCentral Sato T, Hirata A, Mizoguchi T. Prospective, noncomparative, nonrandomized case study of short-term outcomes of 360 degrees suture trabeculotomy ab interno in patients with open-angle glaucoma. Clin Ophthalmol. 2015;9:63–8.CrossRefPubMedPubMedCentral
12.
go back to reference Tanito M, Sano I, Ikeda Y, Fujihara E. Microhook ab interno trabeculotomy, a novel minimally invasive glaucoma surgery, in eyes with open-angle glaucoma with scleral thinning. Acta Ophthalmol. 2016;94:e371–2.CrossRefPubMed Tanito M, Sano I, Ikeda Y, Fujihara E. Microhook ab interno trabeculotomy, a novel minimally invasive glaucoma surgery, in eyes with open-angle glaucoma with scleral thinning. Acta Ophthalmol. 2016;94:e371–2.CrossRefPubMed
13.
go back to reference Tanito M, Sano I, Ikeda Y, Fujihara E. Short-term results of micro-hook ab interno trabeculotomy, a novel minimally invasive glaucoma surgery in Japanese eyes: initial case series. Acta Ophthalmologica. 2017;. doi:10.1111/aos.13288.PubMed Tanito M, Sano I, Ikeda Y, Fujihara E. Short-term results of micro-hook ab interno trabeculotomy, a novel minimally invasive glaucoma surgery in Japanese eyes: initial case series. Acta Ophthalmologica. 2017;. doi:10.​1111/​aos.​13288.PubMed
14.
go back to reference Honjo M, Tanihara H, Inatani M, Honda Y, Ogino N, Ueno S, et al. Phacoemulsification, intraocular lens implantation, and trabeculotomy to treat pseudoexfoliation syndrome. J Cataract Refract Surg. 1998;24:781–6.CrossRefPubMed Honjo M, Tanihara H, Inatani M, Honda Y, Ogino N, Ueno S, et al. Phacoemulsification, intraocular lens implantation, and trabeculotomy to treat pseudoexfoliation syndrome. J Cataract Refract Surg. 1998;24:781–6.CrossRefPubMed
15.
go back to reference Tanihara H, Negi A, Akimoto M, Nagata M. Long-term results of non-filtering surgery for the treatment of primary angle-closure glaucoma. Graefes Arch Clin Exp Ophthalmol. 1995;233:563–7.CrossRefPubMed Tanihara H, Negi A, Akimoto M, Nagata M. Long-term results of non-filtering surgery for the treatment of primary angle-closure glaucoma. Graefes Arch Clin Exp Ophthalmol. 1995;233:563–7.CrossRefPubMed
16.
go back to reference Chen PP, Lin SC, Junk AK, Radhakrishnan S, Singh K, Chen TC. The effect of phacoemulsification on intraocular pressure in glaucoma patients: a report by the American Academy of Ophthalmology. Ophthalmology. 2015;122:1294–307.CrossRefPubMed Chen PP, Lin SC, Junk AK, Radhakrishnan S, Singh K, Chen TC. The effect of phacoemulsification on intraocular pressure in glaucoma patients: a report by the American Academy of Ophthalmology. Ophthalmology. 2015;122:1294–307.CrossRefPubMed
17.
go back to reference Kobayashi H, Kobayashi K. Randomized comparison of the intraocular pressure-lowering effect of phacoviscocanalostomy and phacotrabeculectomy. Ophthalmology. 2007;114:909–14.CrossRefPubMed Kobayashi H, Kobayashi K. Randomized comparison of the intraocular pressure-lowering effect of phacoviscocanalostomy and phacotrabeculectomy. Ophthalmology. 2007;114:909–14.CrossRefPubMed
18.
go back to reference Rosenquist R, Epstein D, Melamed S, Johnson M, Grant WM. Outflow resistance of enucleated human eyes at two different perfusion pressures and different extents of trabeculotomy. Curr Eye Res. 1989;8:1233–40.CrossRefPubMed Rosenquist R, Epstein D, Melamed S, Johnson M, Grant WM. Outflow resistance of enucleated human eyes at two different perfusion pressures and different extents of trabeculotomy. Curr Eye Res. 1989;8:1233–40.CrossRefPubMed
19.
go back to reference Chihara E, Umemoto M, Tanito M. Preservation of corneal endothelium after pars plana tube insertion of the Ahmed glaucoma valve. Jpn J Ophthalmol. 2012;56:119–27.CrossRefPubMed Chihara E, Umemoto M, Tanito M. Preservation of corneal endothelium after pars plana tube insertion of the Ahmed glaucoma valve. Jpn J Ophthalmol. 2012;56:119–27.CrossRefPubMed
20.
go back to reference Siriwardena D, Kotecha A, Minassian D, Dart JK, Khaw PT. Anterior chamber flare after trabeculectomy and after phacoemulsification. Br J Ophthalmol. 2000;84:1056–7.CrossRefPubMedPubMedCentral Siriwardena D, Kotecha A, Minassian D, Dart JK, Khaw PT. Anterior chamber flare after trabeculectomy and after phacoemulsification. Br J Ophthalmol. 2000;84:1056–7.CrossRefPubMedPubMedCentral
21.
go back to reference Hayashi K, Manabe S, Yoshimura K, Kondo H. Corneal endothelial damage after cataract surgery in eyes with pseudoexfoliation syndrome. J Cataract Refract Surg. 2013;39:881–7.CrossRefPubMed Hayashi K, Manabe S, Yoshimura K, Kondo H. Corneal endothelial damage after cataract surgery in eyes with pseudoexfoliation syndrome. J Cataract Refract Surg. 2013;39:881–7.CrossRefPubMed
22.
go back to reference Schumacher S, Nguyen NX, Kuchle M, Naumann GO. Quantification of aqueous flare after phacoemulsification with intraocular lens implantation in eyes with pseudoexfoliation syndrome. Arch Ophthalmol. 1999;117:733–5.CrossRefPubMed Schumacher S, Nguyen NX, Kuchle M, Naumann GO. Quantification of aqueous flare after phacoemulsification with intraocular lens implantation in eyes with pseudoexfoliation syndrome. Arch Ophthalmol. 1999;117:733–5.CrossRefPubMed
24.
go back to reference Kahook MY, Seibold LK, SooHoo JR, Mansouri K, Sharaawy T. A nuanced approach to the surgical management of glaucoma. Middle East Afr J Ophthalmol. 2015;22:1.CrossRefPubMedPubMedCentral Kahook MY, Seibold LK, SooHoo JR, Mansouri K, Sharaawy T. A nuanced approach to the surgical management of glaucoma. Middle East Afr J Ophthalmol. 2015;22:1.CrossRefPubMedPubMedCentral
25.
go back to reference Minckler DS, Baerveldt G, Alfaro MR, Francis BA. Clinical results with the Trabectome for treatment of open-angle glaucoma. Ophthalmology. 2005;112:962–7.CrossRefPubMed Minckler DS, Baerveldt G, Alfaro MR, Francis BA. Clinical results with the Trabectome for treatment of open-angle glaucoma. Ophthalmology. 2005;112:962–7.CrossRefPubMed
26.
go back to reference Malvankar-Mehta MS, Chen YN, Iordanous Y, Wang WW, Costella J, Hutnik CM. iStent as a solo procedure for glaucoma patients: a systematic review and meta-analysis. PLoS ONE. 2015;10:e0128146.CrossRefPubMedPubMedCentral Malvankar-Mehta MS, Chen YN, Iordanous Y, Wang WW, Costella J, Hutnik CM. iStent as a solo procedure for glaucoma patients: a systematic review and meta-analysis. PLoS ONE. 2015;10:e0128146.CrossRefPubMedPubMedCentral
28.
go back to reference Matlach J, Dhillon C, Hain J, Schlunck G, Grehn F, Klink T. Trabeculectomy versus canaloplasty (TVC study) in the treatment of patients with open-angle glaucoma: a prospective randomized clinical trial. Acta Ophthalmol. 2015;93:753–61.CrossRefPubMed Matlach J, Dhillon C, Hain J, Schlunck G, Grehn F, Klink T. Trabeculectomy versus canaloplasty (TVC study) in the treatment of patients with open-angle glaucoma: a prospective randomized clinical trial. Acta Ophthalmol. 2015;93:753–61.CrossRefPubMed
29.
go back to reference Seibold LK, Soohoo JR, Ammar DA, Kahook MY. Preclinical investigation of ab interno trabeculectomy using a novel dual-blade device. Am J Ophthalmol. 2013;155:524–9.CrossRefPubMed Seibold LK, Soohoo JR, Ammar DA, Kahook MY. Preclinical investigation of ab interno trabeculectomy using a novel dual-blade device. Am J Ophthalmol. 2013;155:524–9.CrossRefPubMed
Metadata
Title
Effectiveness and safety of combined cataract surgery and microhook ab interno trabeculotomy in Japanese eyes with glaucoma: report of an initial case series
Authors
Masaki Tanito
Yoshifumi Ikeda
Etsuko Fujihara
Publication date
01-11-2017
Publisher
Springer Japan
Published in
Japanese Journal of Ophthalmology / Issue 6/2017
Print ISSN: 0021-5155
Electronic ISSN: 1613-2246
DOI
https://doi.org/10.1007/s10384-017-0531-z

Other articles of this Issue 6/2017

Japanese Journal of Ophthalmology 6/2017 Go to the issue