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Comparison of Silicone- and Porous-Plate Ahmed Glaucoma Valves
| Content Provider | Scilit |
|---|---|
| Author | Roa, Tina M. Netland, Peter A. Costa, Vital P. Sarkisian Jr, Steven R. Al-Aswad, Lama A. Moster, Marlene R. Ahmed, Iqbal Ik |
| Copyright Year | 2020 |
| Description | Purpose: Our aim was to evaluate and compare the clinical outcomes after implantation of the silicone-plate (model FP7) and porous polyethylene-plate (model M4) Ahmed Glaucoma Valves. Patients and Methods: This was a prospective, multicenter, comparative series. A total of 52 eyes (52 patients) were treated with either the silicone or porous plate Ahmed Glaucoma Valve implant. Hypertensive phase was defined as intraocular pressure > 21 mmHg during the first 3 months postoperatively. Success was defined as 5 mmHg ≤intraocular pressure ≤ 21 mmHg (with or without additional glaucoma medications), without loss of light perception and without additional glaucoma procedures. Patients were monitored for 1 year after surgery. Results: The pre-operative intraocular pressure was 29.9 ± 6.6 mmHg and 33.8 ± 10.5 in the silicone-plate and porous-plate groups, respectively (P = 0.118). At 12 months after surgery, the mean intraocular pressure was 13.6 ± 4.7 mmHg in the silicone-plate group and 17.9 ± 10.9 mmHg in the porous-plate group (P = 0.141). The mean number of glaucoma medications at 12 months was 1.64 ± 1.40 mmHg and 1.89 ± 1.54 mmHg in the silicone- and porous-plate groups, respectively (P = 0.605). Hypertensive phase was not significantly different in the two groups (50.0% of the silicone-plate and 57.7% of the porous-plate groups, P = 0.578). At 12 months after surgery, the percent success for the silicone-plate and porous-plate groups was 88.5% and 53.8%, respectively (P = 0.005). Complications were similar in the two groups. Conclusion: The porous-plate Ahmed Glaucoma Valve showed similar average intraocular pressure reduction compared with the silicone-plate model. At 12 months after surgery, there was a significantly lower success rate in the porous-plate compared with the silicone-plate group. |
| Related Links | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7371999/pdf https://www.dovepress.com/getfile.php?fileID=59743 |
| Ending Page | 221 |
| Page Count | 9 |
| Starting Page | 213 |
| ISSN | 11791470 |
| e-ISSN | 11791470 |
| DOI | 10.2147/mder.s258498 |
| Journal | Medical Devices: Evidence and Research |
| Volume Number | 13 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2020-07-01 |
| Access Restriction | Open |
| Subject Keyword | Ophthalmology Ahmed Glaucoma Valve Medpor Glaucoma Drainage Implant Model Fp7 Model M4 Porous Polyethylene |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Biomedical Engineering |
