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Amniotic membrane transplantation in acute toxic epidermal necrolysis: histopathologic changes and ocular surface features after 1-year follow-up

Poster Details

First Author: E.Conesa Hernandez SPAIN

Co Author(s):    S. Lopez Garcia   I. Garcia Lozano   L. Rivas Jara   M. Moriche Carretero     

Abstract Details

Purpose:

To evaluate ocular features and histopathologic changes in patients with toxic epidermal necrolysis (TEN) treated with amniotic membrane transplantation (AMT) in the acute phase.

Setting:

A prospective study of 5 eyes (3 patients) with severe ocular involvement and 4 eyes (2 patients) with moderate involvement treated with AMT in the acute phase of TEN was performed.

Methods:

Patients underwent a complete ophthalmic assessment before the intervention and 3, 6, 9, and 12 months postoperatively. Tear film break-up time (BUT), Schirmer test, fluorescein_staining, corneal and conjunctival epithelial squamous metaplasia, ocular sequelae, and conjunctival retraction were measured.

Results:

In patients with severe involvement, 2 eyes (40%) showed mild symblepharon and peripheral corneal neovascularization, and corneal epithelial defects, lid margin malposition, and trichiasis was found in 20% of the eyes; only 1 eye (20%) required surgery for structural defects. We did not find ocular sequelae after 1-year follow-up in the patients with moderate involvement. Only 1 eye (25%) developed mild symblepharon that did not require specific treatment. Amniotic membrane transplantation significantly improved the squamous metaplasia in corneal and conjunctival nonsecretory epithelial cells, and significantly improved the goblet cells density after 1-year follow-up.

Conclusions:

Amniotic membrane transplantation performed for acute TEN reduced inflammation and ocular surface scarring, improved dry eye and squamous metaplasia. and decreased ocular sequelae in the chronic stage. Although further and prospective studies are needed, AMT may be the optimal treatment for acute TEN with severe or moderate ocular involvement.

Financial Disclosure:

NONE

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