To describe traction retinal detachment as a complication of posterior dislocation of Descemet stripping automated endothelial keratoplasty (DSAEK) graft.
Vitrectomy surgery was performed in 3 eyes that developed posterior dislocation of DSAEK graft. Intraoperatively, the corneal tissue was found to be adherent to the retina. In 2 cases, a retinal detachment with proliferative vitreoretinopathy (PVR) was already present and the donor DSAEK flap was found to be fused with the retina. In 1 case, the retina was attached at the time of surgery but PVR subsequently developed despite near total removal of the graft, requiring an additional procedure to achieve retinal reattachment.
Corneal tissue removal with a vitreous cutter was attempted in all cases. Residual tissue that had fused with the retina was left in place. Retinal reattachment was achieved with silicone oil injection in 2 cases and scleral buckle alone in 1 case.
Posterior segment dislocation of a DSAEK flap and its adherence to the retina may cause PVR and traction retinal detachment. Early removal is warranted when dislocation occurs.
"These eyes are aphakic eyes, ACIOL-related PBK, post-PKP-failed graft, CHED, and ICE syndrome. In aphakic cases, there are reports of posterior dislocation of the donor disc into the vitreous cavity with or without retinal detachment. Other difficult cases are – vitreous in the anterior chamber, previous large peripheral iridectomy, large YAG capsulotomy even in presence of PCIOL, and a large filtration bleb. "
[Show abstract][Hide abstract] ABSTRACT: Purpose:
To analyze the complications and their managements in Descemet's stripping endothelial keratoplasty (DSEK) in consecutive 430 cases by single surgeon in a tertiary eye hospital.
Materials and Methods:
430 eyes of 366 patients with endothelial dysfunctions scheduled for DSEK, were analyzed retrospectively. In all cases donor dissection was performed manually, and ‘Taco’ insertion and unfolding technique was used. Intra-operative and postoperative complications with their managements and outcomes were reviewed retrospectively. Periodic endothelial cell density was analyzed for each patient till the last visit. Follow-up period was between 3 to 60 months (mean 18.7 months).
13 (3.0%) eyes had operative complications during donor dissection and 16 (3.7%) had during recipient procedure. In 7 (1.6%) eyes, donor lenticule was replaced with a new one during the surgery. In early postoperative period, 21 (4.9%) eyes had donor dislocation and 12 (2.8%) eyes had air-induced pupillary block; and they were managed immediately. 2 cases had primary graft failure and in 1 case had postoperative bacterial endophthalmitis requiring evisceration. In late postoperative period, 48 (11.3%) eyes had secondary glaucoma and 14 (3.3%) eyes had late secondary graft failure. Endothelial rejection occurred in 5 (1.2%) cases. Mean endothelial cell loss was 19.7% after 3 months and 54.2% after 5 years. Total graft failure in this series was 31 (7.2%) and in 17 cases re-DSEK was performed successfully.
Both operative and postoperative complications do occur in DSEK. Most of these complications can be managed by medical or appropriate surgical means. Some of the complications can be avoided and reduced with experience.
Indian Journal of Ophthalmology 09/2013; 62(2). DOI:10.4103/0301-4738.116484 · 0.90 Impact Factor
"Owing to the risks of further complications arising from the posteriorly dislocated grafts, such as retinal detachment , cystoid macular oedema, and epiretinal membrane formation , the dislocated grafts in all previously reported cases were retrieved either in the same operation or later by either a standard three-port vitrectomy or an anterior approach with irrigation and aspiration through the corneal wound. "
[Show abstract][Hide abstract] ABSTRACT: A thirty-year-old Chinese man with a history of severe trauma to his right eye, with secondary sectoral aniridia and multiple operations including intraocular lens insertion more than fifteen years ago, underwent an uneventful Descemet's Stripping Automated Endothelial Keratoplasty (DSAEK) for his pseudophakic bullous keratopathy in a tertiary hospital in Hong Kong. The nature of his previous operations was unknown to the surgeon at the time of transplant. On postoperative day one, the graft was not present in the anterior chamber. Fundal view was limited because of corneal oedema. B-scan ultrasonography could not detect any definite presence of a donor button in the posterior segment as gas was present in the vitreous cavity. The patient was instructed to lie prone full time, and on postoperative day three, the graft was found to be reattached to the stroma with spontaneous resolution of corneal oedema, indicating restoration of pump function of endothelium graft. This is the first case of spontaneous reattachment of a posteriorly dislocated endothelial graft without surgical intervention or abandonment of the grafted endothelial button.
[Show abstract][Hide abstract] ABSTRACT: To report a series of dislocations of the donor graft into the posterior segment associated with Descemet stripping endothelial keratoplasty (DSAEK) and to identify possible risk factors for dislocation and clinical outcomes.
Retrospective case series.
Cases of donor graft dislocation into the posterior segment associated with endothelial keratoplasty were identified from the clinical experience of 7 surgeons. Observations included the preoperative surgical history of each eye, preoperative and postoperative visual acuity, management of the complication, and the postoperative clinical course. No identified cases were excluded from this series.
Eight posterior graft dislocations were associated with DSAEK surgery. Each eye had a history of vitrectomy. Five eyes had sutured posterior chamber intraocular lenses, 1 eye had a sulcus intraocular lens, and 2 eyes were aphakic. Each eye required repeat grafting, and in 6 of 8 eyes, pars plana vitrectomy was used to remove the dislocated graft. Final visual acuities ranged from 20/30 to no light perception.
Graft dislocation into the posterior segment is a rare complication of DSAEK surgery that can lead to permanent vision loss. It has occurred in eyes that have undergone previous vitrectomy and complicated intraocular lens placement or were aphakic. As is the case with a dropped lens nucleus during cataract extraction, visual acuities after a dropped DSAEK graft range from very good to no light perception. Better postoperative results seem to be associated with prompt removal of the posteriorly dislocated graft.
American Journal of Ophthalmology 11/2011; 153(4):638-42, 642.e1-2. DOI:10.1016/j.ajo.2011.09.006 · 3.87 Impact Factor
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