产前家族排泄性维特里奥雷诺病症:一种新的无稽之谈 LRP5 突变
Parnian Arjmand1, Michael Balas1, Jovi C Y Wong1
1Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada.
Retinal cases & brief reports
|August 28, 2024
概括
这份病例报告强调了一种新的LRP5基因突变,该突变发生在患有侵略性视网膜病变的早产婴儿身上. 早期遗传检测对于诊断罕见的视网膜疾病至关重要,例如早产不典型视网膜病 (ROP) 的婴儿的家族排泄性视网膜病 (FEVR).
科学领域:
- 眼科医生 眼科 眼科
- 医学遗传学 医学遗传学
- 新生儿科学 新生儿科学
背景情况:
- 早产视网膜病变 (ROP) 是早产婴儿失明的主要原因.
- 家族排泄性玻璃红蛋白病变 (FEVR) 是一种遗传性疾病,导致视网膜血管异常.
- 由于临床特征重叠,在早产婴儿中区分积极的ROP和FEVR可能具有挑战性.
研究的目的:
- 详细说明诊断和管理一个早产婴儿与严重的双边视网膜病理.
- 为了确定在早产婴儿中具有攻击性的视网膜疾病的遗传基础.
- 强调在异型ROP的差异诊断中考虑FEVR的重要性.
主要方法:
- 临床评估包括视网膜检查,光素血管学和光学连贯性断层扫描.
- 双能X射线吸收计 (DEXA) 用于骨密度评估.
- 对25个与玻璃色素变异相关的基因进行全面的基因测试 (序列和副本数变异分析).
主要成果:
- 婴儿出现了广泛的视网膜非 perfusion, telangiectatic 血管,和拉力视网膜脱落.
- 尽管接受了治疗,但病情进展至视网膜完全脱落和视力丧失.
- 基因检测揭示了LRP5基因中的一种新的致病性同卵性无意义突变,没有典型的骨质疏松症伪骨质瘤综合征发现.
结论:
- 在患有侵袭性视网膜疾病的早产婴儿中发现了一种新的LRP5突变,这表明FEVR的复杂表现.
- 这一案例强调了需要对早产婴儿进行基因测试,以排除非典型或侵略性的ROP,以排除FEVR.
- 通过基因分析进行早期和准确的诊断对于适当管理这些复杂的视网膜血管异常至关重要.
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