在德塞梅特的膜内皮质角质粉样蛋白染色后,在德塞梅特的膜内皮质角质塑性中,粉样蛋白染色为蓝色
Alexandra Klejn1, Robin G Abell1
1Hobart Eye Surgeons, Hobart, Tasmania, Australia.
American journal of ophthalmology case reports
|February 28, 2024
概括
在Descemet膜内皮角质整形手术 (DMEK) 后,角膜粉样沉积物出现了永久的试蓝色染色. 这种罕见的并发症可能会影响视觉结果,并需要前段外科医生仔细考虑.
科学领域:
- 眼科医生 眼科 眼科
- 角膜外科手术 角膜外科手术
- 组织病理学 组织病理学
背景情况:
- 角膜中的粉样蛋白沉积可能发生在初级条件下,如晶状角膜缩症,或是由于其他因素而产生.
- 特里潘蓝色是内皮角质整形术中使用的重要染料,特别是在Descemet膜内皮角质整形术 (DMEK) 中,用于可视化角膜内皮.
- 手术后粉样蛋白沉积物的持续染色是罕见但有意义的发现.
研究的目的:
- 在DMEK手术后报告角膜粉样沉积物永久的试蓝染病例.
- 为了突出这一罕见并发症的视觉影响.
- 为了对角膜粉样蛋白的试蓝染色的有限文献做出贡献.
主要方法:
- 一个82岁的患者病例报告,同时患有Fuchs角膜内皮质变和晶格角膜变.
- 进行了Descemet膜内皮质角质整形 (DMEK) 手术.
- 在3年的随访期间,对粉样沉积物持续的青染色的摄影记录.
主要成果:
- 患者在DMEK后经历了角膜筋膜中粉样沉积物永久的试蓝色染色.
- 手术后的染色持续至少3年.
- 染色可能导致了早期的术后视觉症状.
结论:
- 角膜 Amyloid 沉积物的 Trypan 蓝色染色可能是永久性的,可能会对视觉功能产生影响.
- 这一发现与前段外科医生在初级或二级粉样蛋白沉积的情况下使用青色试相关.
- 在这种情况下,限制青的使用或考虑替代性手术技术,如Descemet的剥离自动化内皮角质整形 (DSAEK) 可能是值得的.
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