左心室几何学,缩喷射时间和在门诊患者中估计的淋巴细胞过率与保存左心室喷射分数之间的关联
Lee A Goeddel1, Sergio Navarrete2, Natalie Waldron1
1Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Cardiology
|October 1, 2024
概括
左心室相对壁厚度 (RWT) 的增加与亚临床心脏功能障碍和慢性病 (CKD) 有关. 这种易于测量的参数可以帮助识别需要进一步评估心脏和功能的患者.
科学领域:
- 心脏病学 心脏病学
- 腎臟病學 (nephrology) 是一種醫學專業.
- 医疗成像医学成像
背景情况:
- 左心室喷射分数 (LVEF) 是心脏风险分层的标准度量,但对于保存LVEF的患者,需要采取其他措施.
- 左心室相对壁厚 (RWT) 与保存LVEF的患者的不良结果有关,但其临床相关性尚不清楚.
- 评估RWT在确定亚临床心脏功能障碍及其与慢性病 (CKD) 的关联中的作用至关重要.
研究的目的:
- 为了确定RWT增加是否表明亚临床心脏功能障碍,使用左心室喷射时间 (LVET) 作为替代品.
- 调查RWT增加与CKD的存在和严重程度之间的独立关联.
主要方法:
- 追溯性队列研究,对375名接受过胸前心声扫描 (TTE) 的门诊患者进行.
- 排除标准包括LVEF<50%,严重的膜疾病或肝功能衰竭.
- 多变量回归模型评估了RWT,LVET和CKD之间的关系,并根据相关的共变量进行调整.
主要成果:
- 每增加0.1秒的RWT与LVET减少4.6毫秒有关,这表明心脏功能恶化 (p=0.004).
- 在RWT的0.1个单位的增加与患有第3阶段或更大的CKD的概率增加了61% (aOR=1.61,p=0.037).
- 每增加0.1个单位的RWT与44%的更高CKD阶段的几率增加有关 (aOR=1.44,p=0.035).
结论:
- 在门诊TTE队列中,增加的RWT与亚临床缩功能障碍 (LVET) 和CKD的替代物独立相关.
- RWT是一种易于推导的测量方法,可以识别患有亚临床缩功能障碍和功能恶化的患者.
- 需要进一步的研究来澄清纵向关系并指导临床干预.
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