Comparison of Silicone- and Porous-Plate Ahmed Glaucoma Valves

Tina M Roa,1 Peter A Netland,1 Vital P Costa,2 Steven R Sarkisian Jr,3 Lama A Al-Aswad,4 Marlene R Moster,5 Iqbal IK Ahmed6 1Department of Ophthalmology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA; 2Department of Ophthalmology, University of Campinas, Campinas, Brazil;...

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Autores principales:	Roa TM, Netland PA, Costa VP, Sarkisian Jr SR, Al-Aswad LA, Moster MR, Ahmed IIK
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2020
Materias:	ahmed glaucoma valve model fp7 model m4 glaucoma drainage implant porous polyethylene medpor Medical technology R855-855.5
Acceso en línea:	https://doaj.org/article/ee21f829cfd64fee9cb75931e22869bf
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spelling	oai:doaj.org-article:ee21f829cfd64fee9cb75931e22869bf2021-12-02T13:11:04ZComparison of Silicone- and Porous-Plate Ahmed Glaucoma Valves1179-1470https://doaj.org/article/ee21f829cfd64fee9cb75931e22869bf2020-07-01T00:00:00Zhttps://www.dovepress.com/comparison-of-silicone--and-porous-plate-ahmed-glaucoma-valves-peer-reviewed-article-MDERhttps://doaj.org/toc/1179-1470Tina M Roa,1 Peter A Netland,1 Vital P Costa,2 Steven R Sarkisian Jr,3 Lama A Al-Aswad,4 Marlene R Moster,5 Iqbal IK Ahmed6 1Department of Ophthalmology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA; 2Department of Ophthalmology, University of Campinas, Campinas, Brazil; 3Oklahoma Eye Surgeons, PLLC, Oklahoma City, OK 73112, USA; 4Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York, NY 10017, USA; 5Glaucoma Service, Wills Eye Hospital, Philadelphia, PA 19107, USA; 6Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON, CanadaCorrespondence: Peter A NetlandUniversity of Virginia School of Medicine, PO Box 800715, Charlottesville, VA 22908, USATel +1 434 982-1086Email pan9c@virginia.eduPurpose: Our aim was to evaluate and compare the clinical outcomes after implantation of the silicone-plate (model FP7) and porous polyethylene-plate (model M4) Ahmed Glaucoma Valves.Patients and Methods: This was a prospective, multicenter, comparative series. A total of 52 eyes (52 patients) were treated with either the silicone or porous plate Ahmed Glaucoma Valve implant. Hypertensive phase was defined as intraocular pressure > 21 mmHg during the first 3 months postoperatively. Success was defined as 5 mmHg ≤intraocular pressure ≤ 21 mmHg (with or without additional glaucoma medications), without loss of light perception and without additional glaucoma procedures. Patients were monitored for 1 year after surgery.Results: The pre-operative intraocular pressure was 29.9 ± 6.6 mmHg and 33.8 ± 10.5 in the silicone-plate and porous-plate groups, respectively (P = 0.118). At 12 months after surgery, the mean intraocular pressure was 13.6 ± 4.7 mmHg in the silicone-plate group and 17.9 ± 10.9 mmHg in the porous-plate group (P = 0.141). The mean number of glaucoma medications at 12 months was 1.64 ± 1.40 mmHg and 1.89 ± 1.54 mmHg in the silicone- and porous-plate groups, respectively (P = 0.605). Hypertensive phase was not significantly different in the two groups (50.0% of the silicone-plate and 57.7% of the porous-plate groups, P = 0.578). At 12 months after surgery, the percent success for the silicone-plate and porous-plate groups was 88.5% and 53.8%, respectively (P = 0.005). Complications were similar in the two groups.Conclusion: The porous-plate Ahmed Glaucoma Valve showed similar average intraocular pressure reduction compared with the silicone-plate model. At 12 months after surgery, there was a significantly lower success rate in the porous-plate compared with the silicone-plate group.Keywords: Ahmed Glaucoma Valve, model FP7, model M4, glaucoma drainage implant, porous polyethylene, MedporRoa TMNetland PACosta VPSarkisian Jr SRAl-Aswad LAMoster MRAhmed IIKDove Medical Pressarticleahmed glaucoma valvemodel fp7model m4glaucoma drainage implantporous polyethylenemedporMedical technologyR855-855.5ENMedical Devices: Evidence and Research, Vol Volume 13, Pp 213-221 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	ahmed glaucoma valve model fp7 model m4 glaucoma drainage implant porous polyethylene medpor Medical technology R855-855.5
spellingShingle	ahmed glaucoma valve model fp7 model m4 glaucoma drainage implant porous polyethylene medpor Medical technology R855-855.5 Roa TM Netland PA Costa VP Sarkisian Jr SR Al-Aswad LA Moster MR Ahmed IIK Comparison of Silicone- and Porous-Plate Ahmed Glaucoma Valves
description	Tina M Roa,1 Peter A Netland,1 Vital P Costa,2 Steven R Sarkisian Jr,3 Lama A Al-Aswad,4 Marlene R Moster,5 Iqbal IK Ahmed6 1Department of Ophthalmology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA; 2Department of Ophthalmology, University of Campinas, Campinas, Brazil; 3Oklahoma Eye Surgeons, PLLC, Oklahoma City, OK 73112, USA; 4Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York, NY 10017, USA; 5Glaucoma Service, Wills Eye Hospital, Philadelphia, PA 19107, USA; 6Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON, CanadaCorrespondence: Peter A NetlandUniversity of Virginia School of Medicine, PO Box 800715, Charlottesville, VA 22908, USATel +1 434 982-1086Email pan9c@virginia.eduPurpose: Our aim was to evaluate and compare the clinical outcomes after implantation of the silicone-plate (model FP7) and porous polyethylene-plate (model M4) Ahmed Glaucoma Valves.Patients and Methods: This was a prospective, multicenter, comparative series. A total of 52 eyes (52 patients) were treated with either the silicone or porous plate Ahmed Glaucoma Valve implant. Hypertensive phase was defined as intraocular pressure > 21 mmHg during the first 3 months postoperatively. Success was defined as 5 mmHg ≤intraocular pressure ≤ 21 mmHg (with or without additional glaucoma medications), without loss of light perception and without additional glaucoma procedures. Patients were monitored for 1 year after surgery.Results: The pre-operative intraocular pressure was 29.9 ± 6.6 mmHg and 33.8 ± 10.5 in the silicone-plate and porous-plate groups, respectively (P = 0.118). At 12 months after surgery, the mean intraocular pressure was 13.6 ± 4.7 mmHg in the silicone-plate group and 17.9 ± 10.9 mmHg in the porous-plate group (P = 0.141). The mean number of glaucoma medications at 12 months was 1.64 ± 1.40 mmHg and 1.89 ± 1.54 mmHg in the silicone- and porous-plate groups, respectively (P = 0.605). Hypertensive phase was not significantly different in the two groups (50.0% of the silicone-plate and 57.7% of the porous-plate groups, P = 0.578). At 12 months after surgery, the percent success for the silicone-plate and porous-plate groups was 88.5% and 53.8%, respectively (P = 0.005). Complications were similar in the two groups.Conclusion: The porous-plate Ahmed Glaucoma Valve showed similar average intraocular pressure reduction compared with the silicone-plate model. At 12 months after surgery, there was a significantly lower success rate in the porous-plate compared with the silicone-plate group.Keywords: Ahmed Glaucoma Valve, model FP7, model M4, glaucoma drainage implant, porous polyethylene, Medpor
format	article
author	Roa TM Netland PA Costa VP Sarkisian Jr SR Al-Aswad LA Moster MR Ahmed IIK
author_facet	Roa TM Netland PA Costa VP Sarkisian Jr SR Al-Aswad LA Moster MR Ahmed IIK
author_sort	Roa TM
title	Comparison of Silicone- and Porous-Plate Ahmed Glaucoma Valves
title_short	Comparison of Silicone- and Porous-Plate Ahmed Glaucoma Valves
title_full	Comparison of Silicone- and Porous-Plate Ahmed Glaucoma Valves
title_fullStr	Comparison of Silicone- and Porous-Plate Ahmed Glaucoma Valves
title_full_unstemmed	Comparison of Silicone- and Porous-Plate Ahmed Glaucoma Valves
title_sort	comparison of silicone- and porous-plate ahmed glaucoma valves
publisher	Dove Medical Press
publishDate	2020
url	https://doaj.org/article/ee21f829cfd64fee9cb75931e22869bf
work_keys_str_mv	AT roatm comparisonofsiliconeandporousplateahmedglaucomavalves AT netlandpa comparisonofsiliconeandporousplateahmedglaucomavalves AT costavp comparisonofsiliconeandporousplateahmedglaucomavalves AT sarkisianjrsr comparisonofsiliconeandporousplateahmedglaucomavalves AT alaswadla comparisonofsiliconeandporousplateahmedglaucomavalves AT mostermr comparisonofsiliconeandporousplateahmedglaucomavalves AT ahmediik comparisonofsiliconeandporousplateahmedglaucomavalves
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Comparison of Silicone- and Porous-Plate Ahmed Glaucoma Valves

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