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Association of cerebral oxygenation with estimated glomerular filtration rate and cognitive function in chronic kidney disease patients without dialysis therapy.


ABSTRACT: BACKGROUND:A decline in estimated glomerular filtration rate (eGFR) is reportedly associated with increased prevalence rates of cognitive impairment. However, data concerning the association between the cerebral saturation of oxygen (rSO2) and cognitive function of patients with chronic kidney disease (CKD) is limited. This study aimed to (i) elucidate the clinical factors associating with cerebral rSO2 and (ii) investigate the association between cerebral rSO2 and cognitive assessment in CKD patients. METHODS:A total of 40 CKD patients not requiring dialysis (26 men and 14 women; mean age, 61.0 ± 2.7 years) were recruited. The numbers of patients at each CKD stage were as follows: G1, 5; G2, 8; G3a, 6; G3b, 5; G4, 11; and G5, 5. Cerebral rSO2 was monitored at the forehead using the oxygen saturation monitor INVOS 5100C. The cognitive function of each patient was confirmed using the Mini-Mental State Examination (MMSE). RESULTS:Cerebral rSO2 levels were significantly higher in CKD patients than in hemodialysis patients (63.8 ± 1.5% vs. 44.9 ± 2.2%, p < 0.001). Multiple regression analysis showed that cerebral rSO2 was independently associated with eGFR (standardized coefficient: 0.530), serum albumin concentration (standardized coefficient: 0.365), and serum sodium concentration (standardized coefficient: 0.224). Furthermore, MMSE showed a significantly positive correlation with cerebral rSO2 (r = 0.624, p < 0.001). CONCLUSIONS:Cerebral rSO2 was affected by eGFR and serum albumin and sodium concentrations in CKD patients. Furthermore, cerebral rSO2 monitoring, which reflected MMSE scores, might be a useful method for assessing cognitive function in CKD patients.

SUBMITTER: Miyazawa H 

PROVIDER: S-EPMC6016918 | biostudies-other | 2018

REPOSITORIES: biostudies-other

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Association of cerebral oxygenation with estimated glomerular filtration rate and cognitive function in chronic kidney disease patients without dialysis therapy.

Miyazawa Haruhisa H   Ookawara Susumu S   Ito Kiyonori K   Ueda Yuichiro Y   Yanai Katsunori K   Ishii Hiroki H   Mutsuyoshi Yuko Y   Kitano Taisuke T   Shindo Mitsutoshi M   Aomatsu Akinori A   Hirai Keiji K   Hoshino Taro T   Morishita Yoshiyuki Y  

PloS one 20180625 6


<h4>Background</h4>A decline in estimated glomerular filtration rate (eGFR) is reportedly associated with increased prevalence rates of cognitive impairment. However, data concerning the association between the cerebral saturation of oxygen (rSO2) and cognitive function of patients with chronic kidney disease (CKD) is limited. This study aimed to (i) elucidate the clinical factors associating with cerebral rSO2 and (ii) investigate the association between cerebral rSO2 and cognitive assessment i  ...[more]

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