• Annals of medicine · Dec 2024

    Cerebral white matter burden is linked to cognitive function in patients undergoing hemodialysis.

    • Tsai-Shan Wu, Ping-Hsun Wu, Hsiu-Fen Lin, Wen-Ching Chen, Teng-Hui Huang, Ming-Yen Lin, Yun-Shiuan Chuang, Fan-Pei Gloria Yang, Yi-Wen Chiu, Jer-Ming Chang, Mei-Chuan Kuo, and Yi-Ting Lin.
    • Department of General Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
    • Ann. Med. 2024 Dec 1; 56 (1): 23101422310142.

    IntroductionChronic kidney disease is related to neurodegeneration and structural changes in the brain which might lead to cognitive decline. The Fazekas scale used for assessing white matter hyperintensities (WMHs) was associated with poor cognitive performance. Therefore, this study investigated the associations between the mini-mental status examination (MMSE), Montreal cognitive assessment (MoCA), cognitive abilities screening instrument (CASI), and Fazekas scale in patients under hemodialysis (HD).MethodsThe periventricular (PV) WMHs and deep WMHs (DWMHs) in brain magnetic resonance images of 59 patients under dialysis were graded using the Fazekas scale. Three cognition function tests were also performed, then multivariable ordinal regression and logistic regression were used to identify the associations between cognitive performance and the Fazekas scale.ResultsThere were inverse associations between the three cognitive function tests across the Fazekas scale of PVWMHs (p = .037, .006, and .008 for MMSE, MoCA, and CASI, respectively), but the associations were attenuated in the DWMHs group. In CASI, significant differences were identified in short-term memory, mental manipulation, abstract thinking, language, spatial construction, and name fluency in the PVWMHs group. However, DWMHs were only significantly correlated with abstract thinking and short-term memory.ConclusionAn inverse correlation existed between the Fazekas scale, predominantly in PVWMHs, and cognition in patients undergoing HD. The PVWMHs were associated with cognitive performance assessed by MMSE, MoCA, and CASI, as well as with subdomains of CASI such as memory, language and name fluency in patients undergoing HD.

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