Клинические результаты модифицированной имплантации клапанного дренажа Ahmed

Abstract

Purpose. To evaluate safety and efficacy of modified Ahmed drainage implantation in neovascular and open-angle glaucoma. Material and methods. The study included patients with refractory glaucoma who underwent standard Ahmed drainage implantation (FP7 model with a surface area of 184 mm² ; New World Medical, USA) or drainage implantation using a modified technique. All patients had a follow up period up to one year after surgery. Control group included 22 eyes of 20 patients who underwent standard Ahmed drainage implantation and 38 eyes of 34 patients who underwent modified Ahmed drainage implantation. Fixation to the scleral bed was not used during modified implantation technique. Silicone tube near the episcleral plate was covered with a half silicone sponge 2 mm thick, which was fixed to the sclera with mattress stiches. Results. Modified Ahmed drainage implantation is faster and easier than conventional implantation, which requires fixation to the scleral bed. Using this technique, it was possible to achieve no drainage displacements in the postoperative period in all patients. There were no significant differences between the groups in intraocular pressure or hypotensive therapy in postoperative period. Conclusion. New Ahmed drainage implantation technique is safe and effective and is promising for clinical practice. Key words: Ahmed drainage, glaucoma, IOP, modified technique