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DSAEK Evolution: A comparison of Small Incision Graft Insertion Methods. J. Brian Foster, MD No Financial Disclosures Keith Walter, MD Patent for Endosaver , consultant for Allergan , Alcon, Oculus, Inspire. Introduction.
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DSAEK Evolution: A comparison of Small Incision Graft Insertion Methods J. Brian Foster, MD No Financial Disclosures Keith Walter, MD Patent for Endosaver, consultant for Allergan, Alcon, Oculus, Inspire
Introduction • Descemet’s Stripping Endothelial Keratoplasty DSEK has been established as the treatment of choice in the treatment of Fuchs’ Dystrophy and BullousKeratopathy • Current graft insertion techniques have been shown to decrease endothelial integrity of the donor cornea, reducing the efficacy of the transplant.
Current Methods of DSEK delivery • 3mm Incision • Injectors- Endosaver, NCI, Endoshield • Trifold • Pull through • Folded • Unfolded • 5mm Incision • Bifold • Busin glide • Pull through
Methods • An interventional case series analysis of 213 eyes undergoing DSAEK for Fuchs' endothelial dystrophy and bullouskeratopathy. • 40 eyes met exclusion criteria of prior penetrating keratoplasty, incisional glaucoma, or retinal surgery. • 105 eyes were performed with a small-incision forceps "trifold" insertion technique and 68 eyes were performed with a no-fold DSAEK graft injector. • We noted pre and post-operative visual acuity at 3 and 6 months, pre and post-operative endothelial cell counts, and complications, including graft detachment, failure, and rejection rates.
Endo Stroma Trifold Supinate Forceps on stroma side Endothelial side up
Endosaver Injector (See Video)
Results • Average post-operative endothelial cell loss at 6 months was 27.7% (n=27) for the injector group and 54.8% (n=51) for the forceps group. • There were three post-op graft dislocations in the injector group (4.4%) and 29 (28%) for the forceps group. • There were 5 graft failures in the forcep group and none in the injector group. • There were no cases of graft rejection.
Conclusions • Preservation of donor endothelium is important for long-term graft survival and speed of visual rehabilitation after DSAEK. • Our injector device permits a no-fold graft insertion through a 4mm incision with a lower graft dislocation rate and endothelial cell loss than a small incision forcep technique.