一个新的预测模型,用于左心室低电压区域在阳性心房动
Baowei Zhang1, Yizhang Wu1, Youming Zhang1
1Department of Cardiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.
Heart rhythm
|February 8, 2026
概括
一个新的评分,HeSLeF-PC,有效地预测左心房低压区域 (LVAs) 在患有心房动症 (AF) 的患者. 该工具有助于在程序前风险分层和无线电频率切除计划.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 医学预测模型 医学预测模型
背景情况:
- 左心房低压区域 (LVAs) 表示心房纤维化和结构重塑在一些心房动 (AF) 患者.
- 识别LVAs对于理解AF病理生理学和指导治疗至关重要.
研究的目的:
- 开发和验证一种新的预测模型,用于识别帕洛西斯马性AF患者的LVAs.
- 建立一个临床工具,用于手术前风险分层和废弃计划.
主要方法:
- 通过对383名经过射频切除的偏激性AF患者的数据进行逻辑回归分析,构建了一个预测模型.
- 确定了LVAs的独立预测因素,包括女性性别,先前的中风,左心房直径,PR间隔,血红蛋白和血清肌素.
- 该模型被称为HeSLeF-PC得分,在独立的前性和多中心队列中得到验证.
主要成果:
- 该HeSLeF-PC得分显示,在阳性AF患者中,LVAs的预测性表现良好 (AUC = 0.810).
- 在外部队列中的验证证实了其预测能力 (AUC从0.767到0.826不等).
- 决策曲线分析表明了HeSLeF-PC得分的临床实用性.
结论:
- 该HeSLeF-PC得分是预测左心房LVAs在阳性AF.一个有效的工具.
- 这一分数可以帮助临床医生在术前风险分层和优化AF患者的切除策略.
相关概念视频
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
601
Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
601
Amyloid Fibrils
12.0K
Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...
12.0K
Amyloid Fibrils
6.5K
6.5K
Voltage
4.3K
The movement of electrons in a conductor requires some form of energy or work, usually provided by an external force, like a battery. This force is called the electromotive force or voltage. The voltage between two points, referred to as points "a" and "b," in an electric circuit is the energy (or work) needed to move a unit charge from point "a" to point "b," and this relationship is expressed mathematically as
4.3K
Fibril-associated Collagen
3.4K
Fibril-associated collagens are a type of collagens present in the extracellular matrix with interrupted triple helices or FACIT (Fibril-associated collagens interrupted triple-helices). FACIT help connect and attach the collagen fibrils with each other as well as with other proteins of the extracellular matrix.
For example, the type II collagen fibrils in cartilage have covalently bound type IX fibril-associated collagens at regular intervals. Other types of fibril-associated collagens are...
For example, the type II collagen fibrils in cartilage have covalently bound type IX fibril-associated collagens at regular intervals. Other types of fibril-associated collagens are...
3.4K
Predicting Molecular Geometry
46.1K
VSEPR Theory for Determination of Electron Pair Geometries
46.1K


