在急性心肌梗塞后通过心率流动引起的风险分层
Petra Barthel1, Raphael Schneider, Axel Bauer
11 Medizinische Klinik der Technischen Universität München, Ismaninger Strabetae 22, 81675 München, Germany.
Circulation
|August 27, 2003
概括
心率动荡 (HRT) 是心肌梗塞后死亡的强有力的预测因素. 患有异常HRT模式的患者在再输血时代面临着显著更高的死亡风险.
科学领域:
- 心脏病学 心脏病学
- 临床医学 临床医学
- 预测分析 (Predictive Analytics) 是一种分析方法.
背景情况:
- 之前的研究表明,心率动 (HRT) 降低与心肌梗塞后死亡风险增加有关.
- 这项前性研究是首次验证HRT在再输血时代的大型患者队列中的预测价值.
研究的目的:
- 为了前性地评估心率动荡 (HRT) 对急性心肌梗塞幸存者的全因死亡率的预测值.
- 为了比较HRT的预测能力与已确定的风险因素,如左心室喷射率 (LVEF),年龄和糖尿病.
主要方法:
- 一千四百五十五名急性心肌梗塞幸存者 (年龄<76岁,鼻节律) 被录取.
- 心率动荡开始 (TO) 和斜率 (TS) 根据霍尔特记录计算.
- 患者被分为HRT组:0类 (正常的TO/TS),1类 (异常的TO或TS) 和2类 (异常的TO和TS).
主要成果:
- 在22个月的随访期间,70人死亡.
- 2类HRT是死亡最强的预测因素 (HR=5.9),其次是LVEF≤30% (HR=4.5),糖尿病 (HR=2.5),年龄≥65 (HR=2.4),和HRT类别1 (HR=2.4).
- 综合风险因素模型显示出死亡率预测的不同灵敏度和积极预测准确度.
结论:
- 心率动荡 (HRT) 作为重灌时代内心肌梗塞后患者死亡率的重要独立预测因素.
- HRT提供了宝贵的预后信息,超越了传统的风险因素,如LVEF,年龄和糖尿病.
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