冠状动脉慢性全闭症无症状患者的诱导性缺血症:一个压力CMR研究
Giuseppe Pinto1,2, Mauro Chiarito1,2, Gaetano Liccardo1,2
1IRCCS Humanitas Research Hospital, Rozzano-Milan, Italy.
概括
患有慢性全闭症 (CTOs) 的无症状患者中有三分之一患有显著的诱导性缺血症. 压力心磁共振 (CMR) 可能有助于识别这些患者的潜在的重血管化益处.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 缺血性心脏病是一种心脏病.
背景情况:
- 在基于可诱导性缺血症的慢性全闭症 (CTOs) 的重血管化方面,指导方针有所不同.
- 无症状CTO患者的缺血患病率和预后影响需要进一步调查.
- 将担保和可行性评估与应激心磁共振 (CMR) 的整合至关重要.
研究的目的:
- 确定无症状CTO患者显著诱导性缺血的患病率和预后影响.
- 评估压力CMR在评估CTO中的缺血,生存能力和担保中的作用.
- 通过了解无症状CTO中的缺血症来告知重血管化决策.
主要方法:
- 对111名无症状的CTO患者进行了回顾性分析,这些患者接受了腺应激CMR.
- 诱导性缺血症的量化,心肌活力的评估和附带担保状态.
- 综合终点:心血管死亡率和非致命的心肌梗塞.
主要成果:
- 33%的患者 (37/111) 患有显著的诱导性缺血症 (≥10%的 LV 质量缺血负担).
- 重血管化和非重血管化CTO患者之间心血管不良事件没有显著差异.
- 压力CMR有效地整合了缺血,生存能力和担保评估.
结论:
- 在无症状的CTO患者中,很大一部分 (33%) 呈现显著的可诱导性缺血症.
- 压力CMR对于评估无症状CTO患者的诱导性缺血是有价值的.
- 研究结果表明,压力CMR在管理无症状CTO方面可能发挥更大的作用.
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