Technical Feasibility of Whole-eye Vascular Composite Allotransplantation: A Systematic Review
Plastic and Reconstructive Surgery - Global Open, ISSN: 2169-7574, Vol: 11, Issue: 4, Page: E4946-null
2023
- 8Citations
- 8Captures
- 2Mentions
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Most Recent News
New York University (NYU) Researchers Report Research in Allotransplantation (Technical Feasibility of Whole-eye Vascular Composite Allotransplantation: A Systematic Review)
2023 JUN 13 (NewsRx) -- By a News Reporter-Staff News Editor at Blood Daily News -- Investigators publish new report on allotransplantation. According to news
Article Description
Background: There are over 43 million individuals in the world who are blind. As retinal ganglion cells are incapable of regeneration, treatment modalities for this condition are limited. Since first incepted in 1885, whole-eye transplantation (WET) has been proposed as the ultimate cure for blindness. As the field evolves, different aspects of the surgery have been individually explored, including allograft viability, retinal survival, and optic nerve regeneration. Due to the paucity in the WET literature, we aimed to systematically review proposed WET surgical techniques to assess surgical feasibility. Additionally, we hope to identify barriers to future clinical application and potential ethical concerns that could be raised with surgery. Methods: We conducted a systematic review of PubMed, Embase, Cochrane Library, and Scopus from inception to June 10, 2022, to identify articles pertaining to WET. Data collection included model organisms studied, surgical techniques utilized, and postoperative functional outcomes. Results: Our results yielded 33 articles, including 14 mammalian and 19 cold-blooded models. In studies performing microvascular anastomosis in mammals, 96% of allografts survived after surgery. With nervous coaptation, 82.9% of retinas had positive electroretinogram signals after surgery, indicating functional retinal cells after transplantation. Results on optic nerve function were inconclusive. Ocular-motor functionality was rarely addressed. Conclusions: Regarding allograft survival, WET appears feasible with no complications to the recipient recorded in previous literature. Functional restoration is potentially achievable with a demonstrated positive retinal survival in live models. Nevertheless, the potential of optic nerve regeneration remains undetermined.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85158063670&origin=inward; http://dx.doi.org/10.1097/gox.0000000000004946; http://www.ncbi.nlm.nih.gov/pubmed/37113307; https://journals.lww.com/10.1097/GOX.0000000000004946; https://dx.doi.org/10.1097/gox.0000000000004946; https://journals.lww.com/prsgo/fulltext/2023/04000/technical_feasibility_of_whole_eye_vascular.52.aspx
Ovid Technologies (Wolters Kluwer Health)
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