Related Experiment Video
Updated: May 20, 2026

The 4 Mountains Test: A Short Test of Spatial Memory with High Sensitivity for the Diagnosis of Pre-dementia Alzheimer's Disease
Published on: October 13, 2016
[Psychometric hepatic encephalopathy score normalization data for the Portuguese population]
Marta Pinho1, Rute Cerqueira, Bruno Peixoto
1Departamento de Psicologia, Neuropsicologia Clínica, Instituto Superior de Ciências da Saúde-Norte, CESPU, crl, Gandra, Unidade de Investigação em Psicologia e Saúde, Porto, Portugal.
This study normalized the Psychometric Hepatic Encephalopathy Score (PHES) for Portugal, enabling early Minimal Hepatic Encephalopathy (MHE) diagnosis. Normative data will improve MHE detection in Portuguese patients.
Area of Science:
- Neuropsychology
- Hepatology
- Psychometrics
Context:
- Minimal Hepatic Encephalopathy (MHE) impacts quality of life and prognosis.
- Early MHE detection is crucial for reducing adverse outcomes.
- The Psychometric Hepatic Encephalopathy Score (PHES) is an internationally recommended diagnostic tool.
Purpose:
- To normalize the PHES for the Portuguese population.
- To provide local normative data for MHE diagnosis and monitoring.
- To facilitate the early detection of MHE in Portuguese patients.
Summary:
- The PHES, comprising five cognitive tasks, was administered to 115 healthy Portuguese subjects.
- Age and education were identified as key factors influencing PHES performance.
- Linear regression was used to establish normality tables.
Impact:
- Enables objective MHE diagnosis in Portuguese patients using an established international method.
- Supports the International Society for Hepatic Encephalopathy and Nitrogen Metabolism guidelines.
- Aims to improve patient outcomes through timely and accurate MHE identification.
Related Concept Videos
Hepatic Encephalopathy
Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test
Effect of Hepatic Disease on Pharmacokinetics: Dose Adjustments Due to Hepatic Impairment
Hepatic Portal System
At its core, the hepatic portal vein is the result of a confluence of the superior and inferior mesenteric veins along with the splenic vein. Each of these veins has a unique role. The superior mesenteric vein is responsible...