alexa Descemet membrane endothelial keratoplasty with a stromal rim (DMEK-S).
Surgery

Surgery

Journal of Transplantation Technologies & Research

Author(s): Studeny P, Farkas A, Vokrojova M, Liskova P, Jirsova K

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Abstract AIM: To describe a novel technique for the preparation and transplantation of posterior corneal lamellae consisting of endothelium and bare Descemet membrane with a stromal supporting rim. METHODS: Posterior lamellar discs for Descemet membrane endothelial keratoplasty with a stromal rim (DMEK-S) were prepared manually immediately before surgery using the big bubble technique. The retrospective case series that underwent DMEK-S comprised 20 eyes of 18 patients with endothelial dysfunction. Best-corrected visual acuity (BCVA) and endothelial cell density (ECD) were measured preoperatively and 12-24 months after DMEK-S. RESULTS: At the end of the follow-up, 10 out of 18 eyes achieved a BCVA of 1.0 or better, and 17 reached 0.5 or better. Primary graft failure occurred in two eyes. The average ECD at 1 year was 1608 (+/-503) cells/mm(2), that is, a mean cell loss from preoperative values of 44\%. Partial early postoperative graft detachment (12 of 20 eyes) was treated by injecting an air bubble into the anterior chamber in all cases. The loss of donor corneas during preparation decreased from approximately 10 to 5\% as more experience was acquired with the procedure. CONCLUSIONS: Preliminary outcomes show that DMEK-S may be used in the treatment of corneal endothelial dysfunction. As this approach is entirely manual, and no special surgical equipment is needed, it has the potential to become widely adopted. This article was published in Br J Ophthalmol and referenced in Journal of Transplantation Technologies & Research

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