Author:
Ookawara Susumu,Ito Kiyonori,Sasabuchi Yusuke,Miyahara Mayako,Miyashita Tomoka,Takemi Nana,Nagamine Chieko,Nakahara Shinobu,Horiuchi Yuko,Inose Nagisa,Shiina Michiko,Murakoshi Miho,Sanayama Hidenori,Hirai Keiji,Morishita Yoshiyuki
Abstract
AbstractIn chronic kidney disease (CKD) patients, the prevalence of cognitive impairment increases with CKD progression; however, longitudinal changes in cognitive performance remain controversial. Few reports have examined the association of cerebral oxygenation with cognitive function in longitudinal studies. In this study, 68 CKD patients were included. Cerebral regional oxygen saturation (rSO2) was monitored. Cognitive function was evaluated using mini-mental state examination (MMSE) score. Clinical assessments were performed at study initiation and 1 year later. MMSE score was higher at second measurement than at study initiation (p = 0.022). Multivariable linear regression analysis showed that changes in MMSE were independently associated with changes in body mass index (BMI, standardized coefficient: 0.260) and cerebral rSO2 (standardized coefficient: 0.345). This was based on clinical factors with p < 0.05 (changes in BMI, cerebral rSO2, and serum albumin level) and the following confounding factors: changes in estimated glomerular filtration rate, hemoglobin level, proteinuria, salt and energy intake, age, presence of diabetes mellitus, history of comorbid cerebrovascular disease, and use of renin–angiotensin system blocker. Further studies with a larger sample size and longer observational period are needed to clarify whether maintaining BMI and cerebral oxygenation improve or prevent the deterioration of cognitive function.
Funder
Japan Society for the Promotion of Science
Publisher
Springer Science and Business Media LLC
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