Long-term Success in the Correction of Exposed Glaucoma Drainage Tubes With a Tube Extender

Merrill, Kevin; Suhr, Abraham W.; Lim, Michele C.

doi:10.1016/j.ajo.2007.03.017

Cited by 14 publications

(10 citation statements)

References 4 publications

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“…Improper, ragged and wide sclerostomy track for insertion of AGV tube into the AC is a major cause of concern. [2223] Leakage from tube insertion site was prevented by making an extremely small entry with the help a 22G needle. To insert the valve tube through such a tight opening was difficult.…”

Section: Discussionmentioning

confidence: 99%

The efficacy of Ahmed glaucoma valve drainage devices in cases of adult refractory glaucoma in Indian eyes

Parihar

Vats

Maggon

et al. 2009

Indian J Ophthalmol

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Aim:To evaluate the efficacy of Ahmed glaucoma valve (AGV) drainage devices in cases of adult refractory glaucoma in Indian eyes.Settings and Design:Retrospective interventional case series study.Materials and Methods:Fifty two eyes of 32 patients of refractory glaucoma in the age group of 35 to 60 years who underwent AGV implantation with or without concomitant procedures from January 2003 to Jan 2007 were studied. Of these, 46 eyes (88%) had undergone filtering surgery earlier whereas remaining eyes underwent primary AGV implantation following failure of maximal medical therapy. The follow up ranged between 12 months to 48 monthsResults:Eighteen eyes (35%) had undergone phacoemulsification with AGV implantation, penetrating keratoplasty (PK) with AGV and intraocular lens (IOL) implantation in 13 eyes (25%), AGV over preexisting IOL in eight eyes (15%). AGV implantation alone was done in six (11%) eyes. Anterior chamber (AC) reconstruction with secondary IOL and AGV was performed in the remaining eyes. The mean intra ocular pressure (IOP) decreased from 36.3 ± 15.7 mm Hg to 19.6 ± 9.2 mm Hg. Complete success as per criteria was achieved in 46 eyes (88%). None of the eyes had failure to maintain IOP control following AGV.Conclusion:The AGV resulted in effective and sustained control of IOP in cases of adult refractory glaucoma in intermediate follow up.

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Section: Discussionmentioning

confidence: 99%

The efficacy of Ahmed glaucoma valve drainage devices in cases of adult refractory glaucoma in Indian eyes

Parihar

Vats

Maggon

et al. 2009

Indian J Ophthalmol

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“… 10 , 11 Various methods of treatment of exposed tubes have been described, including debridement and placement of patch graft material, with or without repositioning the tube. 12 – 15 Sclera, dura, and pericardium patch graft materials were compared and found to have similar patch graft survival. 16 Prevention of tube exposure has been attempted by varying techniques, including a long scleral tunnel, different patch graft materials, 17 – 19 and doubling of processed pericardium allograft.…”

Section: Introductionmentioning

confidence: 99%

Risk factors for tube exposure as a late complication of glaucoma drainage implant surgery

Chaku¹,

Netland²,

Ishida³

et al. 2016

OPTH

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PurposeThe purpose of this study was to evaluate the risk factors for tube exposure after glaucoma drainage implant surgery.Patients and methodsThis was a retrospective case-controlled observational study of 64 eyes from 64 patients. Thirty-two eyes of 32 patients with tube erosion requiring surgical revision were compared with 32 matched control eyes of 32 patients. Univariate and multivariate risk factor analyses were performed.ResultsMean age was significantly younger in the tube exposure group compared with the control group (48.2±28.1 years versus 67.3±18.0 years, respectively; P=0.003). The proportion of diabetic patients (12.5%) in the tube exposure group was significantly less (P=0.041) compared with the control group (37.5%). Comparisons of the type and position of the drainage implant were not significantly different between the two groups. The average time to tube exposure was 17.2±18.0 months after implantation of the drainage device. In both univariate and multivariate analyses, younger age (P=0.005 and P=0.027) and inflammation prior to tube exposure (P≤0.001 and P=0.004) were significant risk factors. Diabetes was a significant risk factor only in the univariate analysis (P=0.027).ConclusionYounger age and inflammation were significant risk factors for tube exposure after drainage implant surgery.

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“…8 Other attempts at repair have involved grafting amniotic membranes over full thickness scleral grafts and using tube extenders to redirect exposed tubing through healthy conjunctiva. 9 Although these methods have proven successful in some cases, they are far from perfect. We hereby introduce 3 cases of tube exposure that were successfully managed using a new technique of burying the exposed tubing under a split-thickness hinged scleral flap.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, complete removal of the implant may be necessary. Although some studies have suggested new techniques for managing this complication, 3,8,9 a standard approach is yet to be established.…”

mentioning

confidence: 97%

Split-thickness Hinged Scleral Flap in the Management of Exposed Tubing of a Glaucoma Drainage Device

Lee

Kang

Kim

et al. 2011

Journal of Glaucoma

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A split-thickness hinged scleral flap technique was devised to aid in tube exposure after glaucoma drainage device implantation. This technique resulted in the successful recovery of the tube without reexposure or serious complications in all 3 observed cases. Split-thickness hinged scleral flaps may be an effective surgical technique for the management of repeated tube exposure after glaucoma drainage device implantation.

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Long-term Success in the Correction of Exposed Glaucoma Drainage Tubes With a Tube Extender

Cited by 14 publications

References 4 publications

The efficacy of Ahmed glaucoma valve drainage devices in cases of adult refractory glaucoma in Indian eyes

The efficacy of Ahmed glaucoma valve drainage devices in cases of adult refractory glaucoma in Indian eyes

Risk factors for tube exposure as a late complication of glaucoma drainage implant surgery

Split-thickness Hinged Scleral Flap in the Management of Exposed Tubing of a Glaucoma Drainage Device

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