在LAMP2心肌病症中临床结果和表型表达
Barry J Maron1, William C Roberts, Michael Arad
1Hypertrophic Cardiomyopathy Center, Minneapolis Heart Institute Foundation, 920 E 28th St, Ste 620, Minneapolis, MN 55407, USA. hcm.maron@mhif.org
JAMA
|March 26, 2009
概括
丹恩病是由LAMP2基因突变引起的,在年轻患者中导致严重的心肌病. 早期诊断对于预后和考虑心脏移植至关重要,以防止快速的临床恶化和25岁之前的死亡.
科学领域:
- 心脏病学 心脏病学
- 遗传学 遗传学 是一个
- 溶酶体储存疾病 溶酶体储存疾病
背景情况:
- 在X链 lysosome关联膜蛋白基因 (LAMP2) 的突变导致丹恩病,一种心肌病模仿高性心肌病 (HCM) 的心肌病.
- 尽管它具有重要的临床影响,但LAMP2心肌病的自然史和临床表现尚未完全理解.
研究的目的:
- 研究LAMP2心肌病的临床结果,预后和表型特征.
- 评估这种情况的诊断和管理策略.
主要方法:
- 对7名年轻患者 (6名男性) 确诊LAMP2突变的临床过程和结果的前性评估.
- 通过临床检查和尸体解剖进行表型评估.
主要成果:
- 患者出现了严重的左心室缩功能障碍,腔腔扩大和明显的缩 (高达65毫米).
- 不良结果包括渐进性心力衰竭,心脏死亡 (n=4),突然死亡 (n=1) 和心脏移植 (n=1) 在24岁时.
- 尸体解剖显示了 lysosomal存储疾病和HCM的特征,包括真空化肌细胞和肌细胞混乱.
结论:
- LAMP2心肌病变是一种严重的疾病,在25岁以下的患者中具有快速临床衰退和高死亡率.
- 及时的分子诊断对于预测预后和指导早期心脏移植决策至关重要.
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