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Randomized Controlled Trial
. 2011 Aug;37(8):1512-6.
doi: 10.1016/j.jcrs.2011.03.039.

Corneal endothelial cell loss in post-penetrating keratoplasty patients after cataract surgery: phacoemulsification versus planned extracapsular cataract extraction

Banu Torun Acar  1 , Ibrahim Bulent Buttanri, Mehmet Sahin Sevim, Suphi Acar
Affiliations
Randomized Controlled Trial

Corneal endothelial cell loss in post-penetrating keratoplasty patients after cataract surgery: phacoemulsification versus planned extracapsular cataract extraction

Banu Torun Acar et al. J Cataract Refract Surg. 2011 Aug.

Abstract

Purpose: To compare the changes in endothelial cell density (ECD) in post-penetrating keratoplasty (PKP) patients after cataract extraction with phacoemulsification or planned extracapsular cataract extraction (ECCE).

Setting: Haydarpasa Numune Education and Research Hospital, Ophthalmology Clinic, Istanbul, Turkey.

Design: Clinical trial.

Methods: Eyes with hard nuclear cataract that had previous PKP were randomly assigned to have phacoemulsification or ECCE. Noncontact specular microscopy was performed preoperatively and 1, 3, and 6 months postoperatively.

Results: Twenty-six eyes of 26 patients were enrolled (14 phacoemulsification; 12 ECCE). Six months postoperatively, the mean corneal ECD was statistically significantly lower in the phacoemulsification group (1869.50 cells/mm(2) ± 158.05 [SD]) than in the ECCE group (1996.00 ± 127.96 cells/mm(2)) (P=.024). The mean percentage of endothelial cell loss at 6 months was 20.3% and 12.7%, respectively (P<.05). In both groups, there was no significant difference in the percentage hexagonality between preoperatively and postoperatively (P>.05).

Conclusion: Extracapsular cataract extraction seemed to cause less endothelial cell damage than phacoemulsification in post-PKP patients with hard nuclear cataract.

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