Myocardial injury after noncardiac surgery (MINS) and perioperative myocardial injury are associated with increased morbidity and mortality. Both are diagnosed by a perioperative increase in troponin, yet there is controversy if MINS is a genuine myocardial insult. We applied postoperative cardiovascular magnetic resonance T2 mapping techniques to visualise acute myocardial injury (i.e. oedema) in six patients with multiple cardiovascular risk factors who underwent aortic surgery. The burden of myocardial oedema was substantially higher in four patients with elevated troponin qualifying for MINS, compared with patients without MINS. The data and images suggest that MINS represents genuine myocardial injury.

中文翻译：

---

非心脏手术后心肌损伤的可视化：使用术后心血管 MRI 的病例系列


非心脏手术（MINS）和围手术期心肌损伤后的心肌损伤与发病率和死亡率增加相关。两者都是通过围手术期肌钙蛋白升高来诊断的，但 MINS 是否是真正的心肌损伤尚存在争议。我们应用术后心血管磁共振 T2 映射技术来可视化 6 名接受主动脉手术的患有多种心血管危险因素的患者的急性心肌损伤（即水肿）。与没有 MINS 的患者相比，四名肌钙蛋白升高且符合 MINS 资格的患者的心肌水肿负担明显更高。数据和图像表明 MINS 代表真正的心肌损伤。