Patricia De Vriendt

Prof. Dr. Patricia De Vriendt

Gerontology/Mental Health and Wellbeing, Vrije Universiteit Brussel, Brussels, Brussels-Capital Region, Belgium
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Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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16 July 2019 in BMJ Open
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Journal Article
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DVDominique van de Velde
Dominique van de Velde
FZFreya De Zutter
Freya De Zutter
TSTon Satink
Ton Satink
UCUrsula Costa
Ursula Costa
SJSara Janquart
Sara Janquart
Patricia De VriendtPatricia De Vriendt
Patricia De Vriendt
Objectives Self-management is a concept frequently used within healthcare but lacks consensus. It is the aim of this study to clarify the concept. Design Concept analysis according to Walker and Avant, comprises eight steps: select concept, determine purpose, identify uses, determine defining attributes, identify model case, identify additional cases, identify antecedents and consequences and define empirical referents. Sources used: PubMed, Scopus and Web of Science. Results Ten attributes delineating the concept have been identified and organised into three groups. Group (a): person-oriented attributes: the person must (1) actively take part in the care process, (2) take responsibility for the care process and (3) have a positive way of coping with adversity. Group (b): person-environment-oriented attributes: (4) the person must be informed about the condition, disease and treatment and self-management, (5) should be individualised, which entails expressing needs, values and priorities, (6) requires openness to ensure a reciprocal partnership with healthcare providers and (7) demands openness to social support. Finally, Group (c): summarising attributes: self-management (8) is a lifetime task, (9) assumes personal skills and (10) encompasses the medical, role and emotional management. Conclusions The findings of this study recognise the complexity of the concept, but also show the need for further investigation to make the concept more measurable. Clarity about the concept will enhance understanding and facilitate implementation in self-management programmes for chronic conditions.

14 March 2017 in PLOS Medicine
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Journal Article
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ECElise Cornelis
Elise Cornelis
EGEllen Gorus
Ellen Gorus
IBIngo Beyer
Ingo Beyer
IBIvan Bautmans
Ivan Bautmans
Patricia De VriendtPatricia De Vriendt
Patricia De Vriendt
Assessment of activities of daily living (ADL) is paramount to determine impairment in everyday functioning and to ensure accurate early diagnosis of neurocognitive disorders. Unfortunately, most common ADL tools are limited in their use in a diagnostic process. This study developed a new evaluation by adopting the items of the Katz Index (basic [b-] ADL) and Lawton Scale (instrumental [i-] ADL), defining them with the terminology of the International Classification of Human Functioning, Disability and Health (ICF), adding the scoring system of the ICF, and adding the possibility to identify underlying causes of limitations in ADL. The construct validity, interrater reliability, and discriminative validity of this new evaluation were determined. From 2015 until 2016, older persons (65–93 y) with normal cognitive ageing (healthy comparison [HC]) (n = 79), mild cognitive impairment (MCI) (n = 73), and Alzheimer disease (AD) (n = 71) underwent a diagnostic procedure for neurocognitive disorders at the geriatric day hospital of the Universitair Ziekenhuis Brussel (Brussels, Belgium). Additionally, the ICF-based evaluation for b- and i-ADL was carried out. A global disability index (DI), a cognitive DI (CDI), and a physical DI (PDI) were calculated. The i-ADL-CDI showed high accuracy and higher discriminative power than the Lawton Scale in differentiating HC and MCI (area under the curve [AUC] = 0.895, 95% CI .840–.950, p = .002), MCI and AD (AUC = 0.805, 95% CI .805–.734, p = .010), and HC and AD (AUC = 0.990, 95% CI .978–1.000, p < .001). The b-ADL-DI showed significantly better discriminative accuracy than the Katz Index in differentiating HC and AD (AUC = 0.828, 95% CI .759–.897, p = .039). This study was conducted in a clinically relevant sample. However, heterogeneity between HC, MCI, and AD and the use of different methods of reporting ADL might limit this study. This evaluation of b- and i-ADL can contribute to the diagnostic differentiation between cognitively healthy ageing and neurocognitive disorders in older age. This evaluation provides more clarity and nuance in assessing everyday functioning by using an ICF-based terminology and scoring system. Also, the possibility to take underlying causes of limitations into account seems to be valuable since it is crucial to determine the extent to which cognitive decline is responsible for functional impairment in diagnosing neurocognitive disorders. Though further prospective validation is still required, the i-ADL-CDI might be useful in clinical practice since it identifies impairment in i-ADL exclusively because of cognitive limitations.

3 February 2012 in International Psychogeriatrics
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Patricia De VriendtPatricia De Vriendt
Patricia De Vriendt
EGEllen Gorus
Ellen Gorus
ECElise Cornelis
Elise Cornelis
AVAnja Velghe
Anja Velghe
MPMirko Petrovic
Mirko Petrovic
TMTony Mets
Tony Mets
Background: The notion of “minimal impairment in instrumental activities of daily living (i-ADL)” is important in the diagnosis of mild cognitive impairment (MCI), but is presently not adequately operationalized. ADL is stratified according to difficulty, complexity, and also to vulnerability to early cognitive changes in a threefold hierarchy: basic activities of daily living (b-ADL), i-ADL, and advanced activities of daily living (a-ADL). This study aims to gain a deeper understanding of the functional decline in the process of MCI.Methods: In a qualitative design, 37 consecutive patients diagnosed with amnestic (a)-MCI and their proxies were interviewed at two geriatric day hospitals. Constant comparative analysis was used for the analysis.Results: The a-ADL-concept emerged as important in the diagnosis of MCI. All participants were engaged in a wide range of activities, which could be clustered according to the International Classification of Functioning, Disability and Health (ICF). Participants reported subtle difficulties in performance. A process of functional decline was identified in which adaptation and coping mechanisms interacted with the process of reduced skills, leading to an activity disruption and an insufficiency in functioning.Conclusion: This study asserts the inclusion of an evaluation of a-ADL in the assessment of older persons. When evaluating ADL at three levels (b-ADL, i-ADL, and a-ADL), all the activities one can perform in daily living are covered.

1 January 2013 in The Journal of nutrition, health and aging
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Journal Article
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Patricia De VriendtPatricia De Vriendt
Patricia De Vriendt
EGE. Gorus
E. Gorus
ECE. Cornelis
E. Cornelis
IBIvan Bautmans
Ivan Bautmans
MPM. Petrovic
M. Petrovic
TMT. Mets
T. Mets
Assessment of advanced activities of daily living (a-ADL) can be of interest in establishing the diagnosis of Alzheimer’s disease (AD) in an earlier stage, since these activities demand high cognitive functioning and are more responsive to subtle changes. In this study we tested a new a-ADL tool, developed according to the International Classification of Functioning, Disability and Health (ICF). The a-ADL tool is based on the total number of activities performed (TNA) by a person and takes each subject as his own reference. It distinguishes a total Disability Index (a-ADL-DI), a Cognitive Disability Index (a-ADL-CDI), and a Physical Disability Index (a-ADL-PDI), with lower score representing more independency. We explored whether these indices allow distinction between cognitively healthy persons, patients with Mild Cognitive Impairment (MCI) and patients with mild AD. Participants were on average 80 years old (SD 4.6; 66–90), were community dwelling, and were diagnosed as (1) cognitively healthy subjects (n=26); (2) patients with MCI (n = 17), or (3) mild AD (n = 25), based upon extensive clinical evaluation and a set of global, cognitive, mood and functional assessments. The a-ADL-tool was not part of the clinical evaluation. The a-ADL-CDI was significantly different between the three groups (p<.01). The a-ADL-DI was significantly different between MCI and AD (p<.001). The tool had good psychometrical properties (inter-rater reliability; agreement between patient and proxy; correlations with cognitive tests). Although the sample size was relatively small, ROC curves were computed for the a-ADL-DI and a-ADL-CDI with satisfactory and promising results. The a-ADLCDI and a-ADL-DI might offer a useful contribution to the identification and follow up of patients with mild cognitive disorders in an older population.

14 February 2019 in International Journal of Geriatric Psychiatry
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ECElise Cornelis
Elise Cornelis
EGEllen Gorus
Ellen Gorus
NSNele Van Schelvergem
Nele Van Schelvergem
Patricia De VriendtPatricia De Vriendt
Patricia De Vriendt

1 November 2016 in Journal of the American Medical Directors Association
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Journal Article
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RARoberta Vella Azzopardi
Roberta Vella Azzopardi
SVSofie Vermeiren
Sofie Vermeiren
EGEllen Gorus
Ellen Gorus
AHAnn-Katrin Habbig
Ann-Katrin Habbig
MPMirko Petrovic
Mirko Petrovic
BJBart Jansen
Bart Jansen