在系统性硬化症相关的肺高血压中,左心室纵向菌株的集群区域模式
Justin K Lui1, Matthew Cozzolino2, Morgan Winburn2
1The Pulmonary Center, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA.
International journal of cardiology
|December 11, 2024
概括
系统性硬化症相关的肺高血压 (SSc-PH) 患者有明显的左心室 (LV) 功能障碍模式,通过心声学识别,面临更高的死亡风险. 识别这些LV菌株集群有助于SSc-PH的风险分层.
科学领域:
- 心脏病学 心脏病学
- 心声回声扫描 (Echocardiography) 是一种心声回声扫描.
- 肺高血压是什么意思 肺高血压
背景情况:
- 系统性硬化症相关的肺高血压 (SSc-PH) 是复杂的,通常涉及左心室 (LV) 功能障碍.
- 不同的LV功能障碍模式对SSc-PH结果的具体影响尚不清楚.
研究的目的:
- 在SSc-PH中使用区域LV纵向菌株模式识别LV功能障碍的不同子组.
- 确定这些LV功能障碍子组与全因死亡率之间的关联.
主要方法:
- 对124名SSc-PH患者的回顾性分析.
- 从心声回声学获得的LV纵向菌株的16段模型中应用K-平均集群.
- 主要结局:时间到全因死亡率.
主要成果:
- 基于LV纵向菌株模式,出现了两个患者群.
- 与集群1相比,集群2显示LV和右心室 (RV) 纵向应变减少,特别是在基底和中间心室隔膜段.
- 2组患者的PH严重程度更高,功能限制更大,死亡风险增加2.06倍.
结论:
- 区域LV纵向菌株的K-平均集群确定了一个高风险的SSc-PH表型.
- 应变的差异在基底和中段最为显著,特别是腹腔间隔膜.
- 这种方法有助于识别增加死亡风险的SSc-PH患者.
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