Abstract
Purpose
To evaluate the clinical outcome of Descemet stripping automated endothelial keratoplasty (DSAEK) in eyes with iridocorneal endothelial (ICE) syndrome.
Patients and methods
A retrospective case series study was conducted. Eighteen consecutive Chinese patients with 20 DSAEK grafts were enrolled. Participants were evaluated by anterior segment optical coherence tomography and confocal microscopy. Postoperative complications, graft survival, endothelial cell counts, corneal thickness, and anterior chamber depth were analysed. A Log-rank test in a Kaplan–Meier analysis and a Cox proportional hazard regression were used to analyse potential risk factors of graft failure.
Results
The mean follow-up duration was 19.0±8.6 months. The donors’ endothelial cell density (ECD) (cells/mm2) values at 1, 3, 6, 12, 18, and 24 months were 3342.2±287.0, 1897.6±745.4, 1793.6±755.7, 1618.1±604.3, 1421.9±650.8, 1265.1±844.1, and 1148.2±1217.8, respectively. Eleven of the 20 grafts exhibited secondary graft failure, with a mean estimated graft survival of 23.4 months. Immediate postoperative complications (air bubble ventilation for elevated intraocular pressure or rebubbling for graft detachment) were more common in eyes exhibiting graft failure (P=0.040). Postkeratoplasty glaucoma surgery emerged as a risk factor of graft failure, with a hazard ratio of 5.174. Eyes with a poor prognosis showed statistically greater central corneal thickness at 1 month, greater graft thickness at 3 months, and a shallower anterior chamber at 6 and 12 months.
Conclusions
The long-term outcome of DSAEK in eyes with ICE syndrome is relatively poor. Immediate postoperative complications, postkeratoplasty glaucoma surgery, thicker corneal parameters, and a shallow anterior chamber were all associated with graft failure.
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Acknowledgements
This study was supported by the National Natural Science Foundation of China, No. 31271045.
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Ao, M., Feng, Y., Xiao, G. et al. Clinical outcome of Descemet stripping automated endothelial keratoplasty in 18 cases with iridocorneal endothelial syndrome. Eye 32, 679–686 (2018). https://doi.org/10.1038/eye.2017.282
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DOI: https://doi.org/10.1038/eye.2017.282
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