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Characterization of Epiretinal Proliferation in Full-Thickness Macular Holes and Effects on Surgical Outcomes
Esther Lee Kim1, Adam J Weiner2, Cindy Ung1
1Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, Massachusetts.
Purpose:
Epiretinal proliferation is a distinct clinical entity from epiretinal membrane that classically is associated with lamellar macular holes, but its prevalence and association with full-thickness macular holes (FTMH) have not been well described. We characterized macular hole-associated epiretinal proliferation (MHEP) and its effects on long-term surgical outcomes.
Design:
Multicenter, interventional, retrospective case-control study.
Participants:
Consecutive eyes that underwent surgery for FTMH with a minimum of 12 months follow-up.
Methods:
All eyes underwent pars plana vitrectomy, removal of any epiretinal membranes, and gas tamponade, with or without internal limiting membrane (ILM) peeling. Spectral-domain OCT imaging was obtained before and after surgery.
Main Outcome Measures:
Improvement in visual acuity and single-surgery hole closure rates in eyes with, versus without, MHEP at 12 months.
Results:
Seven hundred twenty-five charts were analyzed, and 113 patients met inclusion criteria. Of 113 eyes with FTMH, 30 (26.5%) showed MHEP. Patients with FTMH and MHEP were older (P < 0.002) and more often men (P = 0.001), and showed more advanced macular hole stages than those without MHEP (P = 0.010). A full posterior vitreous detachment was more common in eyes with MHEP (P < 0.004). Twelve months after surgery, FTMH with MHEP patients showed significantly less improvement in visual acuity (P = 0.019) with higher rates of ellipsoid and external limiting membrane defects (P < 0.05) and with a higher rate of failure to close with 1 surgery compared to FTMH without MHEP (26.7% vs. 4.8%; P = 0.002]). Peeling the ILM was associated with improved rates of hole closure in FTMH with MHEP (P < 0.001). Multivariate testing confirmed that the presence of MHEP was an independent risk factor for less visual improvement (P = 0.031) and for single-surgery nonclosure (P = 0.009) and that ILM peeling improved single-surgery closure rates (P = 0.026).
Conclusions:
We found that FTMH with MHEP showed poorer anatomic and visual outcomes after vitrectomy compared with FTMH without MHEP. Internal limiting membrane peeling was associated with improved closure rates and should be considered when MHEP is detected before surgery.
Insights
Macular hole-associated epiretinal proliferation (MHEP) is linked to poorer surgical outcomes in full-thickness macular holes (FTMH). Internal limiting membrane peeling may improve closure rates in eyes with MHEP.
Area of Science:
- Ophthalmology
- Retinal Surgery
- Macular Diseases
Background:
- Epiretinal proliferation (EP) is distinct from epiretinal membrane, often associated with lamellar macular holes.
- The prevalence and impact of EP on full-thickness macular holes (FTMH) remain underexplored.
Purpose of the Study:
- To characterize macular hole-associated epiretinal proliferation (MHEP).
- To evaluate the effects of MHEP on long-term surgical outcomes for FTMH.
Main Methods:
- Retrospective case-control study of 113 eyes undergoing FTMH surgery.
- Pars plana vitrectomy with or without internal limiting membrane (ILM) peeling.
- Pre- and post-operative spectral-domain OCT imaging.
Main Results:
- MHEP was present in 26.5% of FTMH cases, associated with older patients and more advanced hole stages.
- FTMH with MHEP showed significantly less visual acuity improvement and higher rates of closure failure (26.7% vs. 4.8%).
- Internal limiting membrane (ILM) peeling improved hole closure rates in MHEP eyes.
Conclusions:
- FTMH with MHEP have poorer anatomic and visual outcomes post-vitrectomy.
- ILM peeling is associated with better closure rates and should be considered in MHEP cases.
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