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       XXVIII Annual Congress of the Iranian Society of Ophthalmology        بـیــست و هشتمین کنــگــره سـالیـانه انـجـمـن چـشـم پـزشـکی ایـــران
مقاله Abstract


Title: Ahmed Glaucoma Valve Implantation: Graft-Free Short Tunnel Small Flap versus Scleral Patch Graft After 1 Year Follow-up: a Randomised Clinical Trial
Author(s): Mohammad Pakravan, MD,1 Mohammadmehdi Hatami, MD,2 Hamed Esfandiari, MD,3 Shahin Yazdani, MD,4Azadeh doozandeh, MD 2, Azadeh Samaeili MD,2 bahareh kheiri, MS2 Ian Conner, MD,PhD3
Presentation Type: Oral
Subject: Glaucoma
Others:
Presenting Author:
Name: Azadeh Samaeili
Affiliation :(optional)
E mail: as100973@yahoo.com
Phone:
Mobile: 09173159125
Purpose:

To compare the efficacy and safety of graft-free short tunnel small flap (STSF) technique with that of scleral patch graft (SPG) in Ahmed glaucoma valve (AGV) implantation.

Methods:

Patients were enrolled and assigned randomly to STSF or SPG. Main Outcome Measures: tube exposure, Intraocular pressure (IOP), number of glaucoma medications, best corrected visual acuity (BCVA), surgical complications, and success rate ( defined as intraocular pressure (IOP) > 5 mmHg, ≤ 21 mmHg, and IOP reduction ≥ 20% from baseline at two consecutive visits after three months, no reoperation for glaucoma).

Results:

only one case in SPG developed tube exposure at 1-year follow-up. The cumulative probability of success during the first year of follow-up was 70% in the STSF and 65% in SPG (P= 0.36). IOP decreased significantly from 29.6 ± 8.6 mmHg at baseline to 16.4 ± 3.6 mmHg at the final follow-up in STSF (p= 0.001). The corresponding numbers for SPG were 30.9 ± 11.2 and 15.8 ± 4.7, respectively (p= 0.001). The final IOP was comparable between both groups (p= 0.65). Mean ± standard deviation of the number of glaucoma medications was 1.8 ± 0.9 in STSF and 1.6 ± 0.9 in SPG at final follow-up (P =0.32). Postoperative complications developed in 8 patients (19%) in STSF and 9 patients (23%) in SPG (P= 0.81).

Conclusion:

STSF and SPG techniques had comparable complication rate at one-year follow-up. Both techniques were comparable in terms of success rate, postoperative IOP, and glaucoma medications.

Attachment:





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