杜氏肌肉发育不良症所有原因死亡率的心血管测量
Jonathan H Soslow1, Meng Xu2, James C Slaughter2
1Division or Pediatric Cardiology, Department of Pediatrics (J.H.S., K.C., K.G.-D.), Vanderbilt University Medical Center, Nashville, TN.
Circulation. Heart failure
|June 8, 2023
概括
关键的心脏测量和NT-proBNP预测杜申肌肉发育不良 (DMD) 的死亡率. 这些发现可以指导DMD心血管临床试验的终点选择.
科学领域:
- 心脏病学 心脏病学
- 遗传学 是一个遗传学.
- 生物标志物 生物标志物
背景情况:
- 心肺衰竭是杜氏肌肉发育不良 (DMD) 的主要死亡原因.
- 目前用于DMD的心血管治疗缺乏FDA批准的心脏终点.
- 确定可靠的终点对于有效的治疗试验设计和供电至关重要.
研究的目的:
- 评估心脏磁共振成像 (CMR) 和DMD患者血液生物标志物的变化速度.
- 确定这些措施中哪些与DMD全因死亡率有关.
主要方法:
- 78名DMD患者接受了211项CMR研究,评估了各种心脏功能和组织特征.
- 血液样本被分析为生物标志物,包括BNP,NT-proBNP和托罗邦素I.
- 考克斯比例危险回归模型被用来分析与所有原因死亡率的关联.
主要成果:
- 在研究期间,15名受试者 (19%) 死亡.
- 一些CMR测量,包括LV喷射分数和晚期加多增强,随着时间的推移而恶化,并与死亡率相关.
- N-终端亲B型尿素 (NT-proBNP) 是唯一与全因死亡率有显著关联的血液生物标志物.
结论:
- 左心室喷射分数,索引LV体积,周围应变,晚期加多增强和NT-proBNP是DMD全因死亡率的重要预测因素.
- 这些措施代表了DMD心血管治疗试验的有希望的终点.
- 这项研究提供了关于CMR和DMD中血液生物标志物的纵向变化的宝贵数据.
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