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Lemaitre D, Tourabaly M, Borderie V, Dechartres A. Long-term Outcomes After Lamellar Endothelial Keratoplasty Compared With Penetrating Keratoplasty for Corneal Endothelial Dysfunction: A Systematic Review. Cornea 2023:00003226-990000000-00271. [PMID: 37185592 DOI: 10.1097/ico.0000000000003240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
PURPOSE The purpose of this study is to evaluate long-term outcomes of endothelial keratoplasty (EK) compared with penetrating keratoplasty (PK) for corneal endothelial dysfunction [Fuchs endothelial corneal dystrophy (FECD) and bullous keratopathy (BK)]. METHODS In this systematic review, we searched PubMed, the Cochrane Library, and Embase up to May 2022 and considered all types of studies addressing our objective. Graft survival at 5, 10, and 15 years was the main outcome. RESULTS Fifty cohort studies were included. At 5 years, in FECD and BK, graft survival seemed higher after EK than PK. Two comparative studies showed either a higher 5-year graft survival after EK than PK or no significant differences. Including noncomparative studies, in FECD, the 5-year graft survival ranged from 0.69 to 0.98 for PK, from 0.93 to 1.00 for DSEK, and from 0.93 to 0.99 for Descemet membrane endothelial keratoplasty (DMEK). In BK, the 5-year graft survival ranged from 0.39 to 0.91 for PK, from 0.65 to 0.89 for DSEK, and from 0.84 to 0.95 for DMEK. The 10-year graft survival ranged from 0.20 to 0.90 for PK and from 0.62 to 0.92 for EK. The mean 5-year best spectacle-corrected visual acuity ranged from 0.73 to 0.43 LogMAR for PK, from 0.61 to 0.09 for DSEK, and from 0.31 to 0.05 for DMEK. The 5-year rejection rate ranged from 11.0% to 28.7% for PK, from 5.0% to 7.9% for DSEK, and from 1.7% to 2.6% for DMEK. CONCLUSIONS These results suggest a higher 5-year graft survival and better secondary outcomes after EK. Nevertheless, the level of evidence was low. PROSPERO REGISTRATION CRD42021260614.
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Affiliation(s)
- Daniel Lemaitre
- GRC 32, Transplantation et Thérapies Innovantes de la Cornée, Sorbonne Université, Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, Paris, France; and
| | - Moise Tourabaly
- GRC 32, Transplantation et Thérapies Innovantes de la Cornée, Sorbonne Université, Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, Paris, France; and
| | - Vincent Borderie
- GRC 32, Transplantation et Thérapies Innovantes de la Cornée, Sorbonne Université, Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, Paris, France; and
| | - Agnes Dechartres
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, UMR-S 1136, AP-HP, Hôpital Pitié-Salpêtrière, Département de Santé Publique, Paris, France
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Eleiwa T, Elsawy A, Ozcan E, Chase C, Feuer W, Yoo SH, Perez VL, Abou Shousha MF. Prediction of corneal graft rejection using central endothelium/Descemet's membrane complex thickness in high-risk corneal transplants. Sci Rep 2021; 11:14542. [PMID: 34267265 PMCID: PMC8282599 DOI: 10.1038/s41598-021-93892-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 06/08/2021] [Indexed: 11/09/2022] Open
Abstract
To determine whether measurements of Endothelium/Descemet complex thickness (En/DMT) are of predictive value for corneal graft rejection after high-risk corneal transplantation, we conducted this prospective, single-center, observational case series including sixty eyes (60 patients) at high risk for corneal graft rejection (GR) because of previous immunologic graft failure or having at least two quadrants of stromal vascularization. Patients underwent corneal transplant. At 1st, 3rd, 6th, 9th, and 12th postoperative month, HD-OCT imaging of the cornea was performed, and the corneal status was determined clinically at each visit by a masked cornea specialist. Custom-built segmentation tomography algorithm was used to measure the central En/DMT. Relationships between baseline factors and En/DMT were explored. Time dependent covariate Cox survival regression was used to assess the effect of post-operative En/DMT changes during follow up. A longitudinal repeated measures model was used to assess the relationship between En/DMT and graft status. Outcome measures included graft rejection, central Endothelium/Descemet's complex thickness, and central corneal thickness (CCT). In patients with GR (35%), the central En/DMT increased significantly 5.3 months (95% CI: 2, 11) prior to the clinical diagnosis of GR, while it remained stable in patients without GR. During the 1-year follow up, the rejected grafts have higher mean pre-rejection En/DMTs (p = 0.01), compared to CCTs (p = 0.7). For En/DMT ≥ 18 µm cut-off (at any pre-rejection visit), the Cox proportional hazard ratio was 6.89 (95% CI: 2.03, 23.4; p = 0.002), and it increased to 9.91 (95% CI: 3.32, 29.6; p < 0.001) with a ≥ 19 µm cut-off. In high-risk corneal transplants, the increase in En/DMT allowed predicting rejection prior to the clinical diagnosis.
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Affiliation(s)
- Taher Eleiwa
- Bascom Palmer Eye Institute, Miller School of Medicine, University of Miami, 900 NW 17 Street, Miami, FL, 33136, USA.,Department of Ophthalmology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Amr Elsawy
- Bascom Palmer Eye Institute, Miller School of Medicine, University of Miami, 900 NW 17 Street, Miami, FL, 33136, USA.,Electrical and Computer Engineering, University of Miami, Miami, FL, USA
| | - Eyup Ozcan
- Bascom Palmer Eye Institute, Miller School of Medicine, University of Miami, 900 NW 17 Street, Miami, FL, 33136, USA
| | - Collin Chase
- Bascom Palmer Eye Institute, Miller School of Medicine, University of Miami, 900 NW 17 Street, Miami, FL, 33136, USA.,Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - William Feuer
- Bascom Palmer Eye Institute, Miller School of Medicine, University of Miami, 900 NW 17 Street, Miami, FL, 33136, USA
| | - Sonia H Yoo
- Bascom Palmer Eye Institute, Miller School of Medicine, University of Miami, 900 NW 17 Street, Miami, FL, 33136, USA
| | - Victor L Perez
- Duke Eye Center, Duke University School of Medicine, Durham, NC, USA
| | - Mohamed F Abou Shousha
- Bascom Palmer Eye Institute, Miller School of Medicine, University of Miami, 900 NW 17 Street, Miami, FL, 33136, USA. .,Electrical and Computer Engineering, University of Miami, Miami, FL, USA. .,Biomedical Engineering, University of Miami, Miami, FL, USA.
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Eleiwa TK, Elsawy A, Syed ZA, Roongpoovapatr V, Sayed AM, Yoo SH, Abou Shousha M. In-vivo Three-dimensional Characteristics of Bowman's Layer and Endothelium/Descemet's Complex Using Corneal Microlayer Tomography in Healthy Subjects. Curr Eye Res 2020; 45:659-667. [PMID: 32064952 DOI: 10.1080/02713683.2019.1691238] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Purpose: To characterize the three-dimensional (3D) thickness profile and age-related changes of Bowman's layer (BL), and endothelium/Descemet's membrane (En/DM) complex among healthy individuals using Corneal Microlayer Tomography (CML-T), and to describe its repeatability and accuracy.Methods: Sixty-six eyes of 41 healthy volunteers; 27 eyes (< 40 years old), and 39 eyes (>40 years old) were imaged using HD-OCT. Automatic and manual segmentation of the corneal layers was performed, and 3D thickness maps were generated, using custom-built CML-T software. A regional analysis of mean thickness parameters between the 2 age groups was performed. A regression analysis was used to assess the correlation between age, and thickness maps. Intraclass Correlation Coefficients (ICC), Coefficients of Variation (COV), and Bland-Altman plots were used to assess the reliability of the repeated measurements in 198 locations.Results: CML-T successfully mapped the BL and En/DM in all included eyes. Thickness maps showed a significant increase in corneal thickness (CT), BL thickness (BMT), and En/DM complex thickness (DMT) toward the periphery with a mean difference 28 µm (p < .001), 1.1 µm (p < .001), and 1.4 µm (p < .001), respectively. There was a strong correlation between age and central DMT (r = 0.61; p < .001), while there was no correlation between age and both CT, and BMT. ICC values ranged from 0.9 (BMT) to 0.997 (DMT), and from 0.808 (BMT) to 0.979 (CT) for intraoperator repeatability of manual measurements, and the accuracy of auto matic measurements, respectively. COV values were lower than 7.5% in all cases.Conclusion: CML-T is a novel tool that can generate 3D-thickness maps of both BL and En/DM. CT, BMT, and DMT increase toward the periphery in healthy corneas. DMT increases with aging, while BMT does not. We also report excellent repeatability, accuracy and good agreement between automatic and manual measurements.
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Affiliation(s)
- Taher K Eleiwa
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA.,Department of Ophthalmology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Amr Elsawy
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA.,Electrical and Computer Engineering, University of Miami, Miami, FL, USA
| | - Zeba A Syed
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA.,Wills Eye Hospital, Thomas Jefferson University, Philadelphia, PA, USA
| | | | - Ahmed M Sayed
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA.,Biomedical Engineering Department, Helwan University, Helwan, Egypt
| | - Sonia H Yoo
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Mohamed Abou Shousha
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA.,Electrical and Computer Engineering, University of Miami, Miami, FL, USA.,Biomedical Engineering, University of Miami, Miami, FL, USA
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Eleiwa TK, Cook JC, Elsawy AS, Roongpoovapatr V, Volante V, Yoo S, Abou Shousha M. Diagnostic Performance of Three-Dimensional Endothelium/Descemet Membrane Complex Thickness Maps in Active Corneal Graft Rejection. Am J Ophthalmol 2020; 210:48-58. [PMID: 31678558 DOI: 10.1016/j.ajo.2019.10.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 10/15/2019] [Accepted: 10/17/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE To evaluate the performance of 3-dimensional (3D) endothelium/Descemet membrane complex thickness (En/DMT) maps vs total corneal thickness (TCT) maps in the diagnosis of active corneal graft rejection. DESIGN Cross-sectional study. METHODS Eighty-one eyes (32 clear grafts and 17 with active rejection, along with 32 age-matched control eyes) were imaged using high-definition optical coherence tomography (HD-OCT), and a custom-built segmentation algorithm was used to generate 3D color-coded maps of TCT and En/DMT of the central 6-mm cornea. Regional En/DMT and TCT were analyzed and compared between the studied groups. Receiver operating characteristic curves were used to determine the accuracy of En/DMT and TCT maps in differentiating between studied groups. Main outcome measures were regional En/DMT and TCT. RESULTS Both regional TCT and En/DMT were significantly greater in actively rejecting grafts compared to both healthy corneas and clear grafts (P < .001). Using 3D thickness maps, central, paracentral, and peripheral En/DMT achieved 100% sensitivity and 100% specificity in diagnosing actively rejecting grafts (optimal cut-off value [OCV] of 19 μm, 24 μm, and 26 μm, respectively), vs only 82% sensitivity and 96% specificity for central TCT, OCV of 587 μm. Moreover, central, paracentral, and peripheral En/DMT correlated significantly with graft rejection severity (r = 0.972, r = 0.729, and r = 0.823, respectively; P < .001). CONCLUSION 3D En/DMT maps can diagnose active corneal graft rejection with excellent accuracy, sensitivity, and specificity. Future longitudinal studies are required to evaluate the predictive and prognostic role of 3D En/DMT maps in corneal graft rejection.
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