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病例报告:穿透性角膜移植术联合自体单纯性角膜缘上皮移植术作为角膜移植术的替代方法。

Case Report: Simultaneous penetrating keratoplasty with autologous simple limbal epithelial transplantation as an alternative to keratoprosthesis.

机构信息

Cornea and Anterior Segment Services, Shantilal Shanghvi Eye Institute, Mumbai, Maharashtra, India.

Shantilal Shanghvi Cornea Institute, LV Prasad Eye Institute, Hyderabad, Telangana, India.

出版信息

F1000Res. 2023 Jul 20;12:488. doi: 10.12688/f1000research.133637.2. eCollection 2023.

Abstract

: This case report highlights the multidisciplinary approach required to achieve successful anatomical and functional outcomes, in an eye with total limbal stem cell deficiency (LSCD) associated with underlying corneal scarring and thinning. : A 59-year-old gentleman had poor visual recovery in the right eye (RE) following accidental carbide blast, 1-year before presenting to us. The visual acuity was counting fingers and clinical examination revealed cicatricial entropion involving the upper eyelid, total LSCD, corneal scarring with a central descemetocele and cataract in the RE. Prior to ocular surface reconstruction, entropion correction was performed. Three months later, penetrating keratoplasty combined with cataract surgery and intraocular lens implantation (penetrating keratoplasty (PK) triple), with autologous simple limbal epithelial transplantation (SLET) was performed. The visual acuity was 20/100, 18 months after the surgery, with a clear well-epithelized corneal graft and stable ocular surface. : LSCD is caused by a decrease in the population and /or function of the limbal epithelial stem cells. Limbal stem cell transplantation (LSCT) is warranted in eyes with total LSCD. In eyes with coexisting corneal scarring, LSCT alone may be inadequate to restore the vision. These eyes require simultaneous or sequential lamellar or full-thickness corneal transplantation for visual rehabilitation. Though, the existing literature favors a sequential approach, where LSCT is performed first followed by corneal transplantation, under certain circumstances such as a thin underlying cornea like in our case, corneal transplantation may have to be combined with LSCT to achieve optimal outcomes. : Combining autologous SLET with PK can be performed for visual rehabilitation in eyes with unilateral total LSCD and underlying corneal thinning. Corneal and limbal graft survival is prolonged if existing adnexal comorbidities are addressed before any surgical intervention is planned and adequate time interval is allowed for the surface inflammation to subside.

摘要

这是一份医学专业文献的翻译,原文如下:

: 本病例报告强调了在伴有潜在角膜瘢痕和变薄的完全角膜缘干细胞缺乏症(LSCD)的眼中实现成功解剖和功能结果所需的多学科方法。 : 一位 59 岁的绅士在 1 年前因意外碳化硼爆炸导致右眼(RE)视力恢复不佳。视力为数指,临床检查显示上眼睑有瘢痕性内翻,完全 LSCD,角膜瘢痕伴中央角膜后弹力层脱离和 RE 白内障。在进行眼表重建之前,先进行了内翻矫正。三个月后,进行了穿透性角膜移植联合白内障手术和人工晶状体植入(穿透性角膜移植(PK)三联手术),并进行了自体简单角膜缘上皮移植(SLET)。手术后 18 个月,视力为 20/100,角膜移植片清晰上皮化,眼表稳定。 : LSCD 是由角膜缘上皮干细胞数量和/或功能下降引起的。对于完全 LSCD 的眼睛,需要进行 LSCT。对于伴有共存性角膜瘢痕的眼睛,单独进行 LSCT 可能不足以恢复视力。这些眼睛需要同时或序贯进行板层或全层角膜移植以进行视力康复。尽管现有文献倾向于采用顺序方法,即首先进行 LSCT,然后再进行角膜移植,但在某些情况下,如我们的病例中存在薄的底层角膜,可能需要将角膜移植与 LSCT 相结合,以达到最佳效果。 : 在单侧完全 LSCD 和底层角膜变薄的眼中,将自体 SLET 与 PK 相结合可用于视力康复。如果在计划任何手术干预之前解决现有的附属器官合并症,并为表面炎症消退留出足够的时间间隔,那么角膜和角膜缘移植物的存活率会延长。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5843/10359739/88e84b88bf1b/f1000research-12-153187-g0000.jpg

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