Evaluation of cerebral dysfunction in patients with chronic kidney disease using neuropsychometric and neurophysiological tests
- Resource Type
- article
- Authors
- Fabiola Sanchez-Meza; Aldo Torre; Lilia Castillo-Martinez; Sofia Sanchez-Roman; Luis Eduardo Morales-Buenrostro
- Source
- Renal Failure, Vol 43, Iss 1, Pp 577-584 (2021)
- Subject
- critical flicker frequency
chronic kidney failure
uremic encephalopathy
cerebral dysfunction
uremia
Diseases of the genitourinary system. Urology
RC870-923
- Language
- English
- ISSN
- 0886-022X
1525-6049
0886022X
84236191
Background Uremic encephalopathy is defined as cerebral dysfunction due to toxin accumulation in patients with chronic kidney disease (CKD). This condition is characterized by subtle to florid symptoms, and its clinical course is always progressive when untreated but partially reversible with renal replacement therapy. While no test exists to measure subclinical uremic encephalopathy, two tests have been validated to measure minimal hepatic encephalopathy: the critical flicker frequency (CFF) test and the psychometric hepatic encephalopathy score (PHES). Objective To use CFF and PHES to measure the prevalence of cerebral dysfunction in individuals with CKD. Methods This cross-sectional study included a total of 69 patients with stage-5 CKD. Cutoff points for minimal encephalopathy were established using existing clinical guidelines: ≤39 Hz for CFF and