血栓溶解药物治疗前的症状持续时间与最终心肌梗塞大小之间的关系
M H Raitt1, C Maynard, G S Wagner
1University of Washington, Seattle, USA.
Circulation
|January 1, 1996
概括
在心脏病发作后,及时的血栓消化疗法对心肌脏的挽救至关重要. 延迟治疗,即使是在前六小时内,也会显著增加最终心脏病发作的大小,突出显示需要快速干预.
科学领域:
- 心脏病学 心脏病学
- 心血管医学 心血管医学
- 干预心脏病学 干预心脏病学
背景情况:
- 肌肉性心脏病发作症状发作后4至6小时内,肌肉性心脏病发作治疗最大限度地挽救了肌肉性心脏病发作.
- 早期延迟 (在这个窗口内) 对最终心脏病发作大小的确切影响仍然不清楚.
- 这项研究量化了在6小时内接受治疗的患者的症状持续时间和心脏病发作大小之间的关系.
研究的目的:
- 为了确定从症状发作到血栓缓解治疗的时间和最终心肌梗塞大小之间的相关性.
- 分析从急性心肌梗塞症状发作后6小时内接受治疗的患者的数据.
主要方法:
- 分析了四个潜在的随机试验中的432名患者的血栓治疗数据.
- 在治疗前使用心电图标准估计心肌面积的风险.
- 用thalium-201光学成像测量最终的心脏病发作大小,在心脏病发作后几周.
主要成果:
- 根据症状持续时间,初始心脏病发作风险区域没有显著差异.
- 最终的心脏病发作大小强烈依赖于血栓缓解药物治疗前的延迟.
- 每30分钟的延迟都会使心肌梗塞的大小增加1%;在4-6小时后的治疗产生了与不治疗相似的结果.
结论:
- 在进行血栓缓解疗法之前增加症状持续时间逐渐减少心肌挽救.
- 这些发现强调了在急性心肌梗塞中尽量减少治疗延迟的关键重要性.
- 及时开始治疗对于最大限度地提高血栓消毒治疗的益处至关重要.
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