KMID : 0213520160300060443
|
|
Korean Journal of Ophthalmology 2016 Volume.30 No. 6 p.443 ~ p.450
|
|
Comparison of Long-term Clinical Outcomes between Descemet's Stripping Automated Endothelial Keratoplasty and Penetrating Keratoplasty in Patients with Bullous Keratopathy
|
|
Kim Sung-Eun Byun Yong-Soo Joo Choun-Ki
|
|
Abstract
|
|
|
Purpose: To compare 2-year clinical outcomes of Descemet's stripping automated endothelial keratoplasty (DSAEK) and penetrating keratoplasty (PK) in patients with bullous keratopathy.
Methods: A retrospective chart review was performed to obtain 2 years of follow-up data of DSAEK or PK at a single center from March 2009 to September 2012. The study comprised 15 eyes of DSAEK and 11 eyes of PK. Outcome measures included best-corrected visual acuity (BCVA), spherical and keratometric changes, central corneal thickness, endothelial cell density, intraocular pressure, and postoperative complications. Graft survival rate was assessed by Kaplan-Meier survival analysis.
Results: There were no differences in patient baseline characteristics between the two groups. At postoperative 2 years, better BCVA of 0.69 ¡¾ 0.51 logarithm of the minimum angle of resolution (logMAR) was found after DSAEK compared to 0.88 ¡¾ 0.48 logMAR after PK. Refractive cylinder in DSAEK and PK was ?2.60 ¡¾ 1.53 and ?6.00 ¡¾ 1.05 diopters (D), respectively, and keratometric cylinder was 3.27 ¡¾ 3.70 and 6.34 ¡¾ 3.51 D, respectively, at postoperative 2 years. The difference of mean spherical equivalents between postoperative 1 month and 2 years was 0.84 D after DSAEK and 2.05 D after PK. A hyperopic shift of 1.17 D was present after 2 years of DSAEK. The mean endothelial cell density at postoperative 2 years was 1,548 ¡¾ 456 cells/mm2 for DSAEK and 1,052 ¡¾ 567 cells/mm2 for PK, with a cell loss of 19.96% vs. 52.38%, respectively when compared to postoperative 1 month. No significant difference in central corneal thickness was found between DSAEK and PK (592 ¡¾ 75 vs. 563 ¡¾ 90 ¥ìm, respectively). Finally, the 2-year survival rate did not differ significantly between DSAEK and PK (93.3% vs. 81.8%, respectively, p = 0.344).
Conclusions: Compared to PK, DSAEK provided more stable refractive errors with better visual outcome, lower endothelial cell loss, and a lower rate of graft rejection at postoperative 2 years in patients with bullous keratopathy.
|
|
KEYWORD
|
|
Bullous keratopathy, Clinical outcomes, Descemet stripping endothelial keratoplasty, Penetrating keratoplasty
|
|
FullTexts / Linksout information
|
|
|
|
Listed journal information
|
|
|
|