对于性染色体积症的NIPT的独特挑战
Louise Wilkins-Haug1, Rebecca Reimers2
1Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts.
Clinical obstetrics and gynecology
|August 31, 2023
概括
针对性染色体形瘤的非侵入性产前检测 (NIPT) 需要不同的预试验咨询. 这些情况更为常见,并且比自体形形状的阳性预测值更低,需要明确的沟通.
科学领域:
- 遗传学 遗传学 是一个
- 产前诊断 在产前诊断
- 生殖医学 生殖医学
背景情况:
- 非侵入性产前检测 (NIPT) 被广泛用于形形查.
- 性染色体形病变 (SCAs) 和自体形病变具有不同的临床影响.
- 当前的NIPT协议经常将这些条件分组在一起,可能会掩盖关键差异.
研究的目的:
- 为了突出NIPT对SCAs的独特特征,与自身状腺瘤相比.
- 强调需要为SCA查提供量身定制的预测辅导.
- 倡导明确区分SCA和自体积症NIPT.
主要方法:
- 对SCAs的NIPT表现与自身形状动脉增生症的比较分析.
- 对SCA的流行率,表型变异性和马赛克主义挑战的审查.
- 对高风险NIPT结果的积极预测值 (PPV) 的评估.
主要成果:
- 状瘤 (45,X, 47,XXY, 47,XXX, 47,XYY) 作为一个群体比单独的自身状瘤 (三体状瘤13,18,21) 更频繁地发生.
- SCAs表现出更大的表型变化和与马赛克主义相关的更复杂的挑战.
- 对于SCAs,高风险NIPT结果的PPV大大低于自体形形状瘤.
结论:
- 对于SCA的NIPT,由于其独特的特征,需要特定的预测咨询.
- 建议将SCA测试与自身形瘤查分开进行.
- 清晰地界定SCA和自体积症NIPT之间的差异对于明智的患者决策至关重要.
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