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JAMA Cardiol:发生心肌损伤者死亡率超50%!武汉人民医院黄从新团队发表新冠肺炎研究

2020-03-28 朱朱 中国循环杂志

3月25日,武汉大学人民医院黄从新教授团队在JAMA心脏病学子刊上发表的一项研究提示,在确诊新冠肺炎的患者中,19.7%在住院期间出现心肌损伤,这些出现心肌损伤的患者院内死亡风险明显增加。

3月25日,武汉大学人民医院黄从新教授团队在JAMA心脏病学子刊上发表的一项研究提示,在确诊新冠肺炎的患者中,19.7%在住院期间出现心肌损伤,这些出现心肌损伤的患者院内死亡风险明显增加。

该研究于2020年1月20日至2020年2月10日连续纳入在武汉大学人民医院住院的416例新冠肺炎确诊患者,随访最终日期为2020年2月15日。

82例(19.7%)新冠肺炎患者在住院期间出现心肌损伤,其中51.2%死亡。而在无心肌损伤的患者中,死亡率为4.5%。

Cox回归分析显示,与无心肌损伤的患者相比,出现心肌损伤的患者死亡风险明显增加,从出现症状或入院起,至最终随访日期,死亡风险分别增加3.26倍和2.41倍。

在该研究中,心肌损伤定义为:无论心电图和超声心动图是否出现新的异常情况,血高敏心肌肌钙蛋白I水平超过第99百分位数上限。

研究者指出,新冠肺炎患者心肌损伤的机制目前仍不明确。

据推测,新冠病毒可能通过与心脏上高表达的血管紧张素转换酶2(ACE2)结合而损伤心肌,但最近病理学研究发现,新冠肺炎患者的心肌组织中很少见到间质单核炎症因子浸润,说明新冠病毒可能不是直接损伤心脏。

研究者认为,出现心肌损伤的患者中炎症细胞因子激活或释放增多,可能会导致心肌细胞凋亡或坏死。

另外,有基础心血管病的患者可能更容易出现心肌损伤,在该研究中,出现心肌损伤的患者中冠心病和高血压的患病率分别约为30%和60%。

该研究还显示,与没有心肌损伤的患者相比,出现心肌损伤的患者年龄较大,合并症较多。

另外,CT显示,出现心肌损伤的患者中,64.6%有多发斑片影和磨玻璃影,但在没有心肌损伤的患者中,仅4.5%有这些阳性发现。

出现心肌损伤的患者需要呼吸机治疗的比例高于无心肌损伤的患者。

在出现心肌损伤的患者中,并发症发生率也较高,包括急性呼吸窘迫综合征、急性肾损伤、电解质紊乱、低蛋白血症、凝血障碍。

原始出处:Shaobo Shi, Mu Qin, Bo Shen, et al. Association of Cardiac Injury With Mortality in Hospitalized Patients With COVID-19 in Wuhan, China. JAMA Cardiol. Published online March 25, 2020.

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    2020-03-28 公卫新人

    新冠肺炎,疫情何时才能消失

    0

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    2020-03-28 旺医

    顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息

    0

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