电心图变化与心肌损伤或心脏手术后死亡之间的关联
Emilie P Belley-Côté1, Richard P Whitlock2, André Lamy2
1Department of Medicine, McMaster University, Hamilton, Ontario, Canada; Population Health Research Institute, Hamilton, Ontario, Canada; Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada; World Health Research Trust, Hamilton, Ontario, Canada.
心脏手术后潜在的缺血心电图变化是常见的. 虽然ST抑郁表明死亡风险较高,但新的Q波和T波逆转表明风险较低,LBBB仅在CABG后影响结果.
科学领域:
- 心脏病学 心脏病学
- 心脏外科手术 心脏外科手术
- 电心电图是指心电图.
背景情况:
- 心脏外科手术 (MICS),心电图 (ECG) 缺血和死亡率后心肌损伤之间的关联仍然不清楚.
- 这项研究调查了心脏手术后潜在的缺血心电图变化及其与30天死亡率的联系.
研究的目的:
- 确定心脏手术后潜在的缺血心电图变化与30天死亡率之间的关联.
- 分析心脏手术后患者中各种缺血心电图模式的预后意义.
主要方法:
- 分析了12594名接受心脏手术的成年患者的队列.
- 对手术前和手术后的心电图 (共59539张) 进行了检查,以发现新的潜在缺血变化.
- 统计模型根据EuroSCORE II进行调整,并根据特定的ECG发现分析死亡风险.
主要成果:
- 72.2%的患者表现出潜在的缺血性心电图变化; 2.1%的患者在30天内死亡.
- ST抑郁 (≥2毫米) 与死亡率增加有关 (HR 2.17),而新的Q波 (HR 0.57) 和T波逆转 (HR 0.58) 与较低的死亡率有关.
- 新的左捆分支阻塞 (LBBB) 仅在接受冠状动脉旁路移植 (CABG) (HR 2.78) 的患者中显著增加死亡风险.
结论:
- 潜在的缺血性心电图变化是心脏手术后经常发生的,但与死亡率有不同的关联.
- ST抑郁意味着更高的风险,而新的Q波和T波逆转表明死亡风险较低.
- 新的LBBB是一个重要的死亡风险因素,特别是在CABG之后,突出了对心电图变化的细微解释的需要.
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