Reactivation of Shunts in Glaucoma Surgery

Objective: to present the main methods of reactivation and maintaining the activity of shunt systems (Ahmed valve drainage, PRESERFLO shunts) in cases of reducing the effectiveness of their work in the early or late postoperative follow-up due to proliferative changes in the filtration zone.Methods:...

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Main Authors: A. Yu. Rascheskov, A. A. Rascheskov, I. A. Loskoutov
Format: Article
Language:Russian
Published: Ophthalmology Publishing Group 2025-03-01
Series:Oftalʹmologiâ
Subjects:
Online Access:https://www.ophthalmojournal.com/opht/article/view/2579
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author A. Yu. Rascheskov
A. A. Rascheskov
I. A. Loskoutov
author_facet A. Yu. Rascheskov
A. A. Rascheskov
I. A. Loskoutov
author_sort A. Yu. Rascheskov
collection DOAJ
description Objective: to present the main methods of reactivation and maintaining the activity of shunt systems (Ahmed valve drainage, PRESERFLO shunts) in cases of reducing the effectiveness of their work in the early or late postoperative follow-up due to proliferative changes in the filtration zone.Methods: an experimental study involving, n = 10 eyes (10 patients). After PRESERFLO implantation: patients underwent needling with dexamethasone injection into the area of the filtration bleb in 2 cases, open plastic surgery of the filtration bleb with cleaning of the distal end of the tube from fibrous tissue and treatment of the filtration area with mitomycin in 3 cases, and reimplantation of the shunt into another sector of the eye in 2 cases. In the case of the Ahmed shunt, in all 3 cases, an open plastic surgery of filtration bleb was performed with excision of a dense fibrovascular membrane around the shunt body.Results. As a result of surgical reactivation of the shunts, compensation of IOP in the early postoperative period was achieved in all cases.Conclusion. The use of shunts made of modern polymers to create an alternative drainage system has reduced the problem of tissue proliferation response on newly created aqueous humor outflow paths, but has not completely solved it. Reactivation of shunts is a routine type of surgical treatment for glaucoma. This article presents the main methods to reactivate and prevent malfunction of the Ahmed and PRESERFLO shunts.
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institution Kabale University
issn 1816-5095
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publishDate 2025-03-01
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record_format Article
series Oftalʹmologiâ
spelling doaj-art-d7b3f36309054a8780f8bc084ce6a4162025-08-20T04:00:20ZrusOphthalmology Publishing GroupOftalʹmologiâ1816-50952500-08452025-03-01221636810.18008/1816-5095-2025-1-63-681226Reactivation of Shunts in Glaucoma SurgeryA. Yu. Rascheskov0A. A. Rascheskov1I. A. Loskoutov2Glaznaya Khirurgiya RascheskovGlaznaya Khirurgiya RascheskovM.F. Vladimirsky Moscow Regional Research and Clinical Institute; Ministry of Healthcare of the Moscow RegionObjective: to present the main methods of reactivation and maintaining the activity of shunt systems (Ahmed valve drainage, PRESERFLO shunts) in cases of reducing the effectiveness of their work in the early or late postoperative follow-up due to proliferative changes in the filtration zone.Methods: an experimental study involving, n = 10 eyes (10 patients). After PRESERFLO implantation: patients underwent needling with dexamethasone injection into the area of the filtration bleb in 2 cases, open plastic surgery of the filtration bleb with cleaning of the distal end of the tube from fibrous tissue and treatment of the filtration area with mitomycin in 3 cases, and reimplantation of the shunt into another sector of the eye in 2 cases. In the case of the Ahmed shunt, in all 3 cases, an open plastic surgery of filtration bleb was performed with excision of a dense fibrovascular membrane around the shunt body.Results. As a result of surgical reactivation of the shunts, compensation of IOP in the early postoperative period was achieved in all cases.Conclusion. The use of shunts made of modern polymers to create an alternative drainage system has reduced the problem of tissue proliferation response on newly created aqueous humor outflow paths, but has not completely solved it. Reactivation of shunts is a routine type of surgical treatment for glaucoma. This article presents the main methods to reactivate and prevent malfunction of the Ahmed and PRESERFLO shunts.https://www.ophthalmojournal.com/opht/article/view/2579glaucomashuntahmedpreserfloreactivation
spellingShingle A. Yu. Rascheskov
A. A. Rascheskov
I. A. Loskoutov
Reactivation of Shunts in Glaucoma Surgery
Oftalʹmologiâ
glaucoma
shunt
ahmed
preserflo
reactivation
title Reactivation of Shunts in Glaucoma Surgery
title_full Reactivation of Shunts in Glaucoma Surgery
title_fullStr Reactivation of Shunts in Glaucoma Surgery
title_full_unstemmed Reactivation of Shunts in Glaucoma Surgery
title_short Reactivation of Shunts in Glaucoma Surgery
title_sort reactivation of shunts in glaucoma surgery
topic glaucoma
shunt
ahmed
preserflo
reactivation
url https://www.ophthalmojournal.com/opht/article/view/2579
work_keys_str_mv AT ayurascheskov reactivationofshuntsinglaucomasurgery
AT aarascheskov reactivationofshuntsinglaucomasurgery
AT ialoskoutov reactivationofshuntsinglaucomasurgery