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Abstract #50433 Published in IGR 14-2
Long-Term Experience of Patch Graft Failure After Ahmed Glaucoma Valve(®) Surgery Using Donor Dura and Sclera Allografts
Zalta AHOphthalmic Surgery Lasers and Imaging 2012; 0: 1-8
BACKGROUND AND OBJECTIVE:To report the long-term incidence, timing, and experience of patch graft failure (PGF) after Ahmed Glaucoma Valve (AGV) (New World Medical, Inc., Rancho Cucamonga, CA) surgery in a large consecutive case series using donor dura mater and sclera sequentially as the allograft materials. PATIENTS AND METHODS:The medical records of all AGV surgeries performed from June 1994 through December 2010 were retrospectively reviewed for cases of PGF. RESULTS:Patch graft failure occurred in 44 (6.3%) of the initial 695 procedures using dura and in 65 (5.8%) of the subsequent 1,121 procedures using sclera (P = .64). The time interval after AGV surgery until the occurrence of PGF was significantly longer for dura (5.8 ± 3.8 years) than for sclera (2.7 ± 1.9 years) (P < .001). CONCLUSION:After an average of 4 years, PGF occurred in 109 (6%) of 1,816 consecutive AGV surgeries using donor dura and sclera allografts. PGF may be the most frequent long-term complication after AGV surgery.
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Classification:
12.8.2 With tube implant or other drainage devices (Part of: 12 Surgical treatment > 12.8 Filtering surgery)