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Saudi Journal of Kidney Diseases and Transplantation
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ORIGINAL ARTICLE Table of Contents   
Year : 2020  |  Volume : 31  |  Issue : 4  |  Page : 796-804
Cognitive Dysfunction in Patients with Chronic Kidney Disease

Department of Medicine, Division of Nephrology, Pt. B. D. Sharma University of Health Sciences, Rohtak, Haryana, India

Correspondence Address:
Deepak Jain
Department of Medicine, Division of Nephrology, Pt. B. D. Sharma University of Health Sciences, Rohtak - 124 001, Haryana
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1319-2442.292313

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Cognitive impairment is a common entity in patients with chronic kidney disease (CKD), which plays an important role in increasing the morbidity in these patients. This study was performed to evaluate cognitive dysfunction and its severity in different stages of CKD and identify the correlation with factors affecting this dysfunction. A cross-sectional design study was conducted on 100 patients with CKD Stage III to V-D fulfilling the eligibility criteria. Cognitive status was assessed using the mini-mental state examination (MMSE) and Montreal cognitive assessment (MoCA) tests. The patients were divided into four groups according to their estimated glomerular filtration rate (eGFR); Group A with eGFR ranging between 30 and 59 mL/min/1.73 m2, Group B with eGFR between 15 and 29 mL/min/1.73 m2, Group C with eGFR <15 mL/min/1.73 m2 not on hemodialysis (HD), and Group D with eGFR <15 mL/min/1.73 m2 and on HD for the past six months. Factors affecting MMSE and MoCA scores were assessed using univariate and multivariate linear regression analysis. Mean MMSE score was 28.72 ± 1.37 in Group A, 26.00 ± 3.67 in Group B, 20.76 ± 4.84 in Group C, and 17.28 ± 3.32 in Group D, which showed a statistically significant difference. The mean MoCA score also showed a statistically significant decline from Group A to Group D with values being 26.36 ± 1.91, 24.56 ± 1.94, 22.08 ± 2.12 and 20.12 ± 1.81, respectively (P < 0.05). The MMSE and MoCA scores were found to have a statistically significant positive correlation with hemoglobin; serum corrected calcium and eGFR (P < 0.01) and statistically significant negative correlation with blood urea, serum creatinine, serum uric acid, serum phosphate, serum potassium and stage of CKD (P < 0.01). By raising the clinician’s awareness about cognitive dysfunction in CKD patients and its potential effects on medication, fluid and, dietary compliance improved quality of care is expected. Early intervention will improve the patient’s quality of life.

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