4.5 Article

Working Memory in Patients with Varying Degree of Hepatic Encephalopathy (HE): A Pilot EEG-fNIRS Study

期刊

NEUROCHEMICAL RESEARCH
卷 -, 期 -, 页码 -

出版社

SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11064-023-04034-3

关键词

Hepatic encephalopathy; Working memory; Rifaximin; EEG; fNIRS

向作者/读者索取更多资源

It is known that patients with covert hepatic encephalopathy (CHE) exhibit working memory abnormalities, but there is no study comparing patients with cirrhosis with/without CHE and controls with both electrophysiological and hemodynamic data collected at the same time. This study showed that the presence of cirrhosis had more effects on working memory than CHE at baseline. Treatment with rifaximin was more beneficial to patients without CHE, suggesting greater room for improvement in this complex task.
It is known that patients with covert hepatic encephalopathy (CHE) exhibit working memory abnormalities, but to date there is no study comparing patients with cirrhosis with/without CHE and controls with both electrophysiological and hemodynamic data collected at the same time.Here we collected behavioral [accuracy and reaction times (RTs), electrophysiological (evoked potentials) and hemodynamic (oxygenated and deoxygenated haemoglobin) correlates of an n-back task [formed by a control (0-back) condition, a low (1-back) and a high (2-back) working memory load conditions] in patients with cirrhosis with/without CHE: (1) at baseline (n = 21, males = 15, 58 +/- 8 yrs), and by comparison with controls (n = 21, males = 15, 57 +/- 11 yrs) and (2) after a 3-month course of rifaximin (n = 18, males = 12, 61 +/- 11 yrs), and by comparison to baseline.All patients showed slower RTs (p < 0.0001) and lower P2 amplitude compared with controls (p = 0.018); moreover, patients with CHE showed reduced accuracy (p < 0.0001) compared with controls, and patients without CHE showed higher oxygenated haemoglobin in the central dorsolateral prefrontal cortex in the 2-back compared with patients with CHE. Post-rifaximin, oxygenated haemoglobin increased in the central frontopolar cortex. In addition, in patients without CHE the RTs of the 2-back became comparable to those of the 0-back and P3 showed higher amplitude.In conclusion, the presence of cirrhosis seemed to have more effects than CHE on working memory at baseline. A course of treatment with rifaximin was more beneficial to patients without CHE, who probably had more room for improvement in this complex task.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据