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Comparison of Silicone- and Porous-Plate Ahmed Glaucoma Valves

PURPOSE: 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...

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Autores principales: Roa, Tina M, Netland, Peter A, Costa, Vital P, Sarkisian Jr, Steven R, Al-Aswad, Lama A, Moster, Marlene R, Ahmed, Iqbal I K
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Dove 2020
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Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7371999/
https://www.ncbi.nlm.nih.gov/pubmed/32765127
http://dx.doi.org/10.2147/MDER.S258498
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author Roa, Tina M
Netland, Peter A
Costa, Vital P
Sarkisian Jr, Steven R
Al-Aswad, Lama A
Moster, Marlene R
Ahmed, Iqbal I K
author_facet Roa, Tina M
Netland, Peter A
Costa, Vital P
Sarkisian Jr, Steven R
Al-Aswad, Lama A
Moster, Marlene R
Ahmed, Iqbal I K
author_sort Roa, Tina M
collection PubMed
description PURPOSE: 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.
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spelling pubmed-73719992020-08-05 Comparison of Silicone- and Porous-Plate Ahmed Glaucoma Valves Roa, Tina M Netland, Peter A Costa, Vital P Sarkisian Jr, Steven R Al-Aswad, Lama A Moster, Marlene R Ahmed, Iqbal I K Med Devices (Auckl) Original Research PURPOSE: 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. Dove 2020-07-16 /pmc/articles/PMC7371999/ /pubmed/32765127 http://dx.doi.org/10.2147/MDER.S258498 Text en © 2020 Roa et al. http://creativecommons.org/licenses/by-nc/3.0/ This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms (https://www.dovepress.com/terms.php).
spellingShingle Original Research
Roa, Tina M
Netland, Peter A
Costa, Vital P
Sarkisian Jr, Steven R
Al-Aswad, Lama A
Moster, Marlene R
Ahmed, Iqbal I K
Comparison of Silicone- and Porous-Plate Ahmed Glaucoma Valves
title 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_short Comparison of Silicone- and Porous-Plate Ahmed Glaucoma Valves
title_sort comparison of silicone- and porous-plate ahmed glaucoma valves
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7371999/
https://www.ncbi.nlm.nih.gov/pubmed/32765127
http://dx.doi.org/10.2147/MDER.S258498
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