分数流储备-负高风险斑块和心肌梗塞后的临床结果
Jan-Quinten Mol1, Rick H J A Volleberg1, Anouar Belkacemi2
1Department of Cardiology, Radboud University Medical Center, Nijmegen, the Netherlands.
JAMA cardiology
|September 13, 2023
概括
在心肌梗塞 (MI) 后的非罪祸首病变中,高风险斑块与更糟糕的结果有关. 光学连贯断层扫描 (OCT) 识别了这些斑块,表明需要新的治疗方法,而不仅仅是FFR引导的再血管化.
科学领域:
- 心血管医学 心血管医学
- 干预心脏病学 干预心脏病学
- 医疗成像医学成像
背景情况:
- 患有心肌梗塞 (MI) 的患者经历重复性主要不良心血管事件 (MACE) 的高率,即使在部分流量储备 (FFR) 引导的完全重血管化后.
- FFR阴性非罪祸首的病变可能含有高风险斑块,有助于这些复发.
研究的目的:
- 评估光学连贯断层扫描 (OCT) 识别的高风险斑块在FFR阴性非罪祸首病变和心脏病发作患者中MACE的发生之间的关联.
主要方法:
- PECTUS-obs研究招募了患有心肌梗塞的患者,他们接受了FFR阴性非罪祸首病变的OCT (FFR > 0.80).
- 通过≥2个标准定义的高风险斑块:脂质弧≥90°,纤维盖<65微米,或斑块破裂/血栓.
- 两年后的MACE比较率 (所有原因的死亡率,非致命性MI,计划外再血管) 在2年后续.
主要成果:
- 在420名患者中,有143人 (34.0%) 至少有一次高风险斑块.
- 在患有高风险斑块的患者中,MACE发生在15.4%的患者中,而没有MACE的患者则为8.3% (HR, 1.93;P=.02).
- 在高风险斑块组中,无计划的复血管化发生率更高 (9.8%对4.3%;P=.02).
结论:
- 在FFR阴性非原因病变中,高风险斑块与心脏病发作患者的临床结果较差有关.
- 增加的MACE风险主要是由于计划外的再血管.
- 研究结果表明,需要制定针对高风险斑块的新型治疗策略,超出目前的重血管化指导方针.
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