NCT04214847

The Outcome of Ahmed Glaucoma Valve in Difficult Glaucoma Cases

One- Year Follow up of Two Models of Ahmed Glaucoma Valves (S2 and FP7) in Refractory Glaucoma

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 1 (actual)
• Sponsor: Ain Shams University · Academic / Other
• Sex: All
• Age: 45 Years – 60 Years
• Healthy volunteers: Not accepted

Summary

The clinical difference (mean IOP, success rate, and complications) on using S2 and FP7 models of Ahmed Glaucoma Valve that had similar dimensions and different materials used for their construction in one year follow up was evaluated.

Detailed description

Refractory glaucoma is a difficult subject; many glaucoma devices are tried to reduce IOP. Glaucoma devices is now an integral part of glaucoma surgery. AGV is commonly used. The investigators need to compare the efficiency and failure rate of two models of AGV. The point that is the biological reaction around capsule can affect the efficiency.

Conditions

• Glaucoma, Open-Angle
• Glaucoma Secondary
• Glaucoma, Neovascular

Interventions

Type	Name	Description
PROCEDURE	Ahmed Glaucoma Valve surgery	The surgical procedure was identical for both implant types and was performed as described previously.9,14 All surgical procedures were performed under local anesthesia except for children, general anesthesia was used. The valve plate was primed and placed in the superotemporal quadrant after making fornix-based conjunctival flap. The valve plate was secured to sclera with 10-0 nylon sutures 10 mm posterior to the limbus. Before implantation, applying sponges soaked with Mitomycin- c 0.3 cc for three minutes on bare sclera at this quadrant. The tube was placed in the anterior chamber through a 23-gauge needle tract at the limbus. The tube left patent and viscoelastic substance injected into anterior chamber. A donor scleral graft was secured with interrupted 10-0 nylon sutures over the exposed portion of the tube. Conjunctiva was sutured with 10-0 nylon sutures.

Timeline

• Start date: 2012-02-01
• Primary completion: 2014-03-12
• Completion: 2014-07-15
• First posted: 2020-01-02
• Last updated: 2020-01-02