ArticleCornea2016
Intraoperative Fluorescein Staining of Cryopreserved Amniotic Membrane Grafts to Improve Visualization During and After Pterygium Surgery: A Novel Technique.
Article in Cornea, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
purposeTo describe a new method of enhancing the visualization of amniotic membrane grafts with fluorescein staining during pterygium surgery.
methodsPterygium excision surgery using intraoperatively stained cryopreserved amniotic membranes was performed on 346 eyes. A sterile 0.6 mg sodium fluorescein strip was placed directly onto the amniotic membrane in the manufacturer's original packaging, and the stained allograft was then transplanted onto the planned site. Staining intensities, at 3, 5, and 10 minutes of dye immersion, were compared. Immediate postoperative pain rating (scale 0-10), visibility of the fluorescein-stained amniotic membrane graft, and conjunctival autograft and amniotic membrane graft elevation, dehiscence, retraction, or displacement were recorded. The recurrence rate of the study population was compared with that of a previous cohort of 121 patients who underwent pterygium excision with conjunctival autograft without stained amniotic membrane.
resultsDirect contact of the fluorescein strip on the amniotic membrane at 3, 5, and 10 minutes showed no differences in subjective staining intensity. Fluorescein-stained amniotic membrane was easily detected on the ocular surface during and 24 hours after pterygium surgery. The average immediate postoperative pain rating was 0.8 ± 1.8. No intraoperative complications or postoperative amniotic membrane graft dehiscence, retraction, or displacement occurred. The recurrence rate using fluorescein-stained amniotic membrane (3 patients, 0.9%, mean follow-up time 31.8 ± 18.6 weeks) did not differ from that of the previous cohort without the stained amniotic membrane (2.5%; χ(1) = 1.837, P = 0.183).
conclusionsFluorescein strip staining of the amniotic membrane is a novel and safe intraoperative method to enhance visualization and handling of the graft during and after ocular surgeries.
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