Scleral fixation of Ahmed glaucoma valve tube tip for adjustment of cornea-touching malposition

T, K; Kim, J H; Seong, Gong Je; Jang, Dong Su; Kim, C Y

doi:10.1038/eye.2013.214

Cited by 8 publications

(11 citation statements)

References 7 publications

(13 reference statements)

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“…Adequately lowering of IOP is probably a promising way to sufficiently reduce graft endothelial cell loss. Regarding the shunt device-induced endothelial cell damage in glaucoma, several methods to prevent its occurrence have been explored [58, 59].…”

Section: Risk Factors and Pathogenesis Of Endothelial Decompensationmentioning

confidence: 99%

Risk Factors for Endothelial Decompensation after Penetrating Keratoplasty and Its Novel Therapeutic Strategies

Liu

Hong

2018

Journal of Ophthalmology

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Purpose To review the risk factors and pathogenesis of endothelial decompensation after penetrating keratoplasty (PKP) and its novel therapeutic strategies. Methods Literature review. Results As the major cause of graft failure in PKP, endothelial decompensation of corneal allograft is considered an irreversible decrease in endothelial cell density and endothelial dysfunction. Various risk factors, including donor status and operative and recipient factors, have been found to be associated with this pathological process. Operative factors like graft size and recipient factors such as indications, glaucoma, or glaucoma surgery history are highly associated with the occurrence of endothelial decompensation, while others are still under investigation. Although the mechanism of these risk factors remains unclear, pathogenesis can be summarized as an acute and chronic loss of endothelium, and cell exchange between donor and recipient is at the core of chronic cell loss. Endothelial keratoplasty has been a useful alternative to repeat standard PKP in eyes with failed grafts. Descemet stripping automated endothelial keratoplasty (DSAEK) and Descemet's membrane endothelial keratoplasty (DMEK) following failed PKP provide more rapid visual recovery and achieve better rates of graft survival than those of a second PKP. Conclusions Any direct or indirect damage to the endothelium could cause the loss, morphological changes, and dysfunction of endothelial cells. Graft size, indications, and recipient glaucoma or glaucoma surgery history are risk factors for endothelial decompensation. DSAEK and DMEK are novel therapeutic strategies for failed PKP grafts and have potential superiorities compared with repeat PKP.

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Section: Risk Factors and Pathogenesis Of Endothelial Decompensationmentioning

confidence: 99%

Risk Factors for Endothelial Decompensation after Penetrating Keratoplasty and Its Novel Therapeutic Strategies

Liu

Hong

2018

Journal of Ophthalmology

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“…Çalışma-mızda, tüp-endotel teması olan vakalara bakıldığın-da bunların %50'sinin afakik glokom grubu olduğu görüldü. Tüp-endotel teması endotel yetmezliği ve kalıcı kornea ödemine yol açması nedeniyle önemli bir komplikasyondur ve bu durumu düzeltmek için tüpün kısaltılması, tüpün yerinin değiştirilmesi gibi literatürde bir çok yöntem tanımlanmıştır 24,25 .…”

Section: Discussionunclassified

Long Term Results Of Refractory Glaucoma Cases With Ahmed Glaucoma Valve Implantation

Yazgan¹,

Çelik²,

Uğurbaş³

et al. 2016

MMJ

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To evaluate long-term effects of Ahmed glaucoma valve (AGV) implantation in refractory glaucoma cases on intraocular pres Key words: Ahmed glaucoma valve, refractory glaucoma, corneal edema Öz Dirençli glokom vakalarında Ahmed glokom valf (AGV) implantasyonunun göz içi basıncı, görme keskinliği ve kornea üzerindeki uzun dönem etkilerini değerlendirmektir. 2003-2014 yılları arasında dirençli glokom tanısıyla Ahmed valf implantasyonu yapı-lan vakalar geriye dönük incelendi. Görme keskinliği en az ışık hissi düzeyinde olan ve 12 ay takip süresi olan hastalar seçildi. Ameliyat öncesi ve son muayenedeki en iyi düzeltilmiş görme keskinliği (EİDGK), göz içi basıncı (GİB), medikasyon sayısı ve merkezi kornea kalınlığı (MKK) kaydedildi. Komplikasyonlar ve uygulanan ilave cerrahiler not edildi. İlave glokom cerrahilerine gereksinim duyulmadan GİB'nın ilaçlı/ilaçsız 5-22 mmHg olması ve görme keskinliğinin korunması ve kornea saydamlığının devamlılığı tam cerrahi başarı sayıldı. Neovasküler (n=13), afakik (n=13), penetran keratoplastiye ikincil (n=7), konjenital (n=4), travmatik (n=5)ve primer dirençli glokom (n=6) olmak üzere 47 dirençli glokom vakasının 48 gözü değerlendirildi. Yaş ortalaması 50,40±22,80 yıl, takip süresi 32,33±20,[78][79][80][81][82][83][84] operasyon öncesi ve son takipteki EİDGK sırasıyla 1,50±0,61 ve 1,60±0,57 LogMAR, GİB değerleri sırasıyla 39,22±9,47 ve 17,02±4,29 mmHg, medikasyon sayısı sırasıyla 3,47±0,92 ve 1,52±1,09, MKK sırasıyla 590,00±88,86 ve 655,25±170,88 mikron saptandı (p<0,05

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“…Reopening the conjunctiva and sclera for removal and tube reinsertion through a new pathway might cause insufficient wound closure and disturb the function of the BGI. Our choice was a novel technique of repositioning the tube with scleral fixation, which Ma et al 5 reported in adult patients.…”

Section: Discussionmentioning

confidence: 99%

“…To avoid corneal endothelium damage, BGI tube repositioning with scleral fixation was performed as previously described. 5 Briefly, a conjunctival incision and triangular-shaped scleral flap were made at the inferior temporal area ( Figure 1I and J , green arrows). The end of the tube was pulled out through the corneal side port punctured immediately above the tube using capsulorhexis forceps ( Figure 1I and J ).…”

Section: Case Reportmentioning

confidence: 99%

A case of WAGR syndrome in association with developmental glaucoma requiring bilateral Baerveldt glaucoma implants and subsequent tube repositioning

Akagi

Yoshikawa

Nakanishi

et al. 2015

OPTH

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Glaucoma drainage device implantation is efficacious for the treatment of pediatric glaucoma patients when multiple angle surgeries fail. However, tube touching of the corneal endothelium is one of the major postoperative complications to deal with. A 15-month-old male patient with Wilms’ tumor, aniridia, genitourinary anomalies, and mental retardation (WAGR) syndrome was diagnosed with bilateral developmental glaucoma. He underwent Baerveldt glaucoma implant (BGI) surgeries in both eyes after multiple failed trabeculotomies. The tube in his right eye was touching the cornea 15 months after BGI surgery. To avoid corneal endothelium damage, BGI tube repositioning with scleral fixation was performed without serious complications. The bilateral BGI surgeries achieved successful intraocular pressure reduction for over 2 years and tube repositioning with scleral fixation of BGI tube was successful for BGI tube malposition. Although careful attention to intraocular pressure and tube malposition is essential after glaucoma drainage device implantation, especially in pediatric cases, BGI surgery is effective in the management of developmental glaucoma following unsuccessful angle surgeries.

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Scleral fixation of Ahmed glaucoma valve tube tip for adjustment of cornea-touching malposition

Cited by 8 publications

References 7 publications

Risk Factors for Endothelial Decompensation after Penetrating Keratoplasty and Its Novel Therapeutic Strategies

Risk Factors for Endothelial Decompensation after Penetrating Keratoplasty and Its Novel Therapeutic Strategies

Long Term Results Of Refractory Glaucoma Cases With Ahmed Glaucoma Valve Implantation

A case of WAGR syndrome in association with developmental glaucoma requiring bilateral Baerveldt glaucoma implants and subsequent tube repositioning

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Scleral fixation of Ahmed glaucoma valve tube tip for adjustment of cornea-touching malposition

Cited by 8 publications

References 7 publications

Risk Factors for Endothelial Decompensation after Penetrating Keratoplasty and Its Novel Therapeutic Strategies

Risk Factors for Endothelial Decompensation after Penetrating Keratoplasty and Its Novel Therapeutic Strategies

Long Term Results Of Refractory Glaucoma Cases With Ahmed Glaucoma Valve Implantation

A case of WAGR syndrome in association with developmental glaucoma requiring bilateral Baerveldt glaucoma implants and subsequent tube&nbsp;repositioning

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A case of WAGR syndrome in association with developmental glaucoma requiring bilateral Baerveldt glaucoma implants and subsequent tube repositioning