[心脏磁共振成像在亚临床系统性硬化症中应用] 主要心脏参与
1Department of Rheumatology and Immunology,the First Medical Center of the Chinese PLA General Hospital, Beijing 100853, China.
Zhonghua nei ke za zhi
|February 7, 2024
概括
系统性硬化症中的亚临床心脏参与 (SSc-PHI) 显示心肌纤维化但功能保留. 疾病严重程度和Troponin T等生物标志物与SSc-PHI相关,有助于风险识别.
科学领域:
- 心血管成像和生物标志物
- 风湿病学和系统性自身免疫性疾病
背景情况:
- 系统性硬化症 (SSc) 可以导致初级心脏干扰 (SSc-PHI),这是一个关键的预后因素.
- 亚临床SSc-PHI往往没有被检测到,需要先进的成像技术来早期表征.
- 识别亚临床SSc-PHI对于管理疾病进展和患者结果至关重要.
研究的目的:
- 通过心血管MRI来表征亚临床SSc-PHI.
- 确定疾病严重程度 (mRSS) 和血清生物标志物 (Troponin T,NT-proBNP) 与亚临床SSc-PHI之间的关联.
- 为了研究心脏纤维化和SSc患者的临床表现之间的关系.
主要方法:
- 心血管MRI (3Tesla) 包括T1/T2映射和26名SSc患者的细胞外体积量化.
- 对焦点纤维化晚期加多增强剂 (LGE) 的评估.
- 测量血清中的Troponin T和NT-proBNP水平.
主要成果:
- 50%的患者显示LGE,表明焦点心肌纤维化.
- 在分散的皮肤SSc (dcSSc) 中,T2映射值明显高于有限的皮肤SSc (lcSSc).
- 更高的修饰罗丹皮肤评分 (mRSS) 与LGE相关,T2映射与dcSSc和指尖有关.
结论:
- 亚临床SSc-PHI呈现为扩散性和焦点性心肌纤维化,并保留了缩功能.
- 亚临床SSc-PHI与Troponin T升高,SSc疾病严重程度和复杂的外周血管疾病有关.
- 心血管MRI发现可以识别心脏干扰风险的SSc患者.
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