Neurology:COVID-19患者认知障碍与脑功能和结构连接损伤有关

2021-12-12 自由影像之光 MedSci原创

COVID-19患者中,认知障碍(COVID-DoC)已成为一种严重并发症。COVID-DoC的预后和病理生理学仍不清楚,使继续维持生命治疗的决定变得复杂。

COVID-19患者中,认知障碍(COVID-DoC)已成为一种严重并发症。COVID-DoC的预后和病理生理学仍不清楚,使继续维持生命治疗的决定变得复杂。

Brian L Edlow等在Neurology杂志发文,描述了COVID-DOC的自然史,并研究了其相关的大脑连接谱。

COVID-DoC患者的神经影像学特征和恢复。

在对1105名新冠肺炎患者进行筛选后,招募了12名COVID-DoC患者。中位年龄为63.5岁[四分位间距55-76.3]。排除一名在入组后不久死亡的患者,其余11名患者均在停止持续静脉镇静后0-25天(中位数7[5-14.5])恢复意识。出院时,所有存活患者仍有依赖性——中位GOSE 3[1-3],中位DRS 23[16-30]。然而,最终,除了两名患有严重多发性神经病的患者外,所有患者都带着正常的认知和轻微的残疾回家:在三个月时,平均GOSE为3[3-3],平均DRS为7[5-13];6个月时,中位GOSE 4[4-5],中位DRS 3[3-5]。

COVID-DoC患者的长期功能结果

10例COVID-DoC患者接受了高级神经影像学检查;与健康对照组相比,COVID-DoC患者的脑功能和结构连接降低,而结构连接与重度TBI患者相当。

COVID-DoC患者和健康对照组的静息状态功能连接

COVID-DoC患者和健康对照的弥散加权MRI指标

在新冠肺炎大流行期间,COVID-DoC提出了独特而深刻的挑战。COVID -DoC使患者无法沟通,康复前景不明朗,迫使家属和临床医生在几乎没有数据可供指导的情况下决定是否继续进行维持生命的治疗。这项研究表明,从严重新冠肺炎的医学并发症中幸存下来的患者极有可能恢复意识。虽然出院后的残疾率很高,但这种残疾主要是由于长期疾病的后遗症,患者通常在随后的几个月内会有很大改善。此外,COVID-DoC似乎与脑功能和结构连接损伤有关,这是其他由脑损伤引起的DOC的共同发现。虽然未来的研究需要进一步描述Covid-DOC的特征,但这些发现有助于了解Covid-DOC的预后和病理生理学,这是一种充满不确定性的疾病。

原文出处

Disorders of Consciousness Associated With COVID-19: A Prospective, Multimodal Study of Recovery and Brain Connectivity

David Fischer, Samuel B Snider, Megan E Barra, William R Sanders, Otto Rapalino, Pamela Schaefer, Andrea S. Foulkes, Yelena G Bodien, Brian L Edlow

Neurology Dec 2021, 10.1212/WNL.0000000000013067; DOI: 10.1212/WNL.0000000000013067

 

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    2022-01-24 yinhl1978
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