The capacity to consent to treatment and research: A review of standardized assessment tools

2005 ◽  
Vol 25 (7) ◽  
pp. 954-974 ◽  
Author(s):  
E STURMAN
Keyword(s):  
Assessment Tools ◽  
Standardized Assessment ◽  
Capacity To Consent ◽  
Consent To Treatment

Assessing capacity to consent to treatment with cholinesterase inhibitors in dementia using a specific and standardized version of the MacArthur Competence Assessment Tool (MacCAT-T)

2016 ◽  
Vol 29 (2) ◽  
pp. 333-343 ◽  
Author(s):  
Tanja Mueller ◽  
Julia Haberstroh ◽  
Maren Knebel ◽  
Frank Oswald ◽  
Roman Kaspar ◽  
...  
Keyword(s):  
Informed Consent ◽  
Cholinesterase Inhibitors ◽  
Assessment Tool ◽  
Assessment Tools ◽  
Competence Assessment ◽  
Rater Reliability ◽  
Capacity To Consent ◽  
People With Dementia ◽  
Hypothetical Treatment ◽  
Consent To Treatment

ABSTRACTBackground:The use of assessment tools has been shown to improve the inter-rater reliability of capacity assessments. However, instrument-based capacity assessments of people with dementia face challenges. In dementia research, measuring capacity with instruments like the MacArthur Competence Assessment Tool for Treatment (MacCAT-T) mostly employ hypothetical treatment vignettes that can overwhelm the abstraction capabilities of people with dementia and are thus not always suitable for this target group. The primary aim of this study was to provide a standardized real informed consent paradigm that enables the dementia-specific properties of capacity to consent to treatment in people with dementia to be identified in a real informed consent process that is both externally valid and ethically justifiable.Methods:The sample consisted of 53 people with mild to moderate dementia and a group of 133 people without cognitive impairment. Rather than using a hypothetical treatment vignette, we used a standardized version of the MacCAT-T to assess capacity to consent to treatment with cholinesterase inhibitors in people with dementia. Inter-rater reliability, item statistics, and psychometric properties were also investigated.Results:Intraclass correlations (ICCs) (0.951–0.990) indicated high inter-rater reliability of the standardized real informed consent paradigm. In the dementia group, performance on different items of the MacCAT-T varied. Most people with dementia were able to express a treatment choice, and were aware of the need to take a tablet. Further information on the course of the disorder and the benefits and risks of the treatment were less understood, as was comparative reasoning regarding treatment alternatives.Conclusion:The standardized real informed consent paradigm enabled us to detect dementia-specific characteristics of patients’ capacity to consent to treatment with cholinesterase inhibitors. In order to determine suitable enhanced consent procedures for this treatment, we recommend the consideration of MacCAT-T results on an item level. People with dementia seem to understand only basic information. Our data indicate that one useful strategy to enhance capacity to consent is to reduce attention and memory demands as far as possible.

scholarly journals A Case for the Standardized Assessment of Testamentary Capacity

2018 ◽  
Vol 21 (1) ◽  
pp. 26-31 ◽  
Author(s):  
Megan Brenkel ◽  
Kimberley Whaley ◽  
Nathan Herrmann ◽  
Kerri Crawford ◽  
Elias Hazan ◽  
...  
Keyword(s):  
Structured Interview ◽  
Mental Capacity ◽  
Assessment Tools ◽  
Assessment Instrument ◽  
Standardized Assessment ◽  
Assessment Instruments ◽  
Potential Value ◽  
Testamentary Capacity ◽  
Consent To Treatment ◽  
Frail Population

BackgroundWith an increasingly aged, frail population that holds a disproportionate amount of wealth, clinicians (especially those with expertise in older adults) may be asked with more frequency to offer a clinical opinion on testamentary capacity (TC), the mental capacity to make a will.MethodThis paper reviews the legal criteria as well as the empirical research on assessment tools for determining testamentary capacity (TC). We also review the relevance of instruments used for the assessment of other decisional capacities in order to evince the potential value of developing a standardized assessment of TC for clinician experts.ResultsThe legal criteria, often referred to as a “test”, for determining requisite TC (Banks v. Goodfellow) have remained much the same since 1870 with minimal clinical input and, as such, there has been little development in TC assessment instruments. Decisional instruments designed to assess Consent to Treatment may have relevance for TC.ConclusionWe make the case for a semi-structured interview that includes standardized criteria for the legal test for TC, supplemented by a validated brief neuropsychological assessment, which together comprise a Contemporaneous Assessment Instrument (CAI) for TC.

Decisional capacity to consent to treatment and anaesthesia in patients over the age of 60 undergoing major orthopaedic surgery

2019 ◽  
Vol 59 (4) ◽  
pp. 247-254 ◽  
Author(s):  
Gabriele Mandarelli ◽  
Giovanna Parmigiani ◽  
Felice Carabellese ◽  
Silvia Codella ◽  
Paolo Roma ◽  
...  
Keyword(s):  
Informed Consent ◽  
Orthopaedic Surgery ◽  
Decisional Capacity ◽  
Capacity To Consent ◽  
Capacity Evaluation ◽  
Decision Making Capacity ◽  
Consent To Treatment ◽  
Major Orthopaedic Surgery ◽  
Pain Symptoms ◽  
State Examination

Despite growing attention to the ability of patients to provide informed consent to treatment in different medical settings, few studies have dealt with the issue of informed consent to major orthopaedic surgery in those over the age of 60. This population is at risk of impaired decision-making capacity (DMC) because older age is often associated with a decline in cognitive function, and they often present with anxiety and depressive symptoms, which could also affect their capacity to consent to treatment. Consent to major orthopaedic surgery requires the patient to understand, retain and reason about complex procedures. This study was undertaken to extend the literature on decisional capacity to consent to surgery and anaesthesia of patients over the age of 60 undergoing major orthopaedic surgery. Recruited patients ( N=83) were evaluated using the Aid to Capacity Evaluation, the Beck Depression Inventory, the State–Trait Anxiety Inventory Y, the Mini-Mental State Examination and a visual analogue scale for measuring pain symptomatology. Impairment of medical DMC was common in the overall sample, with about 50% of the recruited patients showing a doubtful ability, or overt inability, to provide informed consent. Poor cognitive functioning was associated with reduced medical DMC, although no association was found between decisional capacity and depressive, anxiety and pain symptoms. These findings underline the need of an in-depth assessment of capacity in older patients undergoing major orthopaedic surgery.

4. Consent to Treatment

2018 ◽  
Author(s):  
Jonathan Herring
Keyword(s):  
Mental Capacity ◽  
Best Interests ◽  
Living Wills ◽  
Ethical Aspects ◽  
Capacity To Consent ◽  
Delicate Balance ◽  
Mental Capacity Act 2005 ◽  
Consent To Treatment ◽  
Advance Decisions ◽  
Mental Capacity Act

This chapter examines the legal and ethical aspects of treating a patient without consent. It considers the meaning of ‘consent’ and the position of patients who lack the capacity to consent. For children who lack capacity, consent involves a delicate balance between the rights of the children and those of their parents. For adults lacking capacity, the Mental Capacity Act 2005 has emphasized the ‘best interests’ test, but has largely left open the question of how a person’s best interests are to be ascertained. The chapter also considers what weight should be attached to advance decisions (sometimes called living wills).

The Relationship Between Executive Functions and Capacity to Consent to Treatment in Acute Psychiatric Hospitalization

2012 ◽  
Vol 7 (5) ◽  
pp. 63-70 ◽  
Author(s):  
Gabriele Mandarelli ◽  
Giovanna Parmigiani ◽  
Lorenzo Tarsitani ◽  
Paola Frati ◽  
Massimo Biondi ◽  
...  
Keyword(s):  
Executive Functions ◽  
Psychiatric Hospitalization ◽  
Capacity To Consent ◽  
Consent To Treatment ◽  
The Relationship

scholarly journals Factors Influencing Physical Therapists' Use of Standardized Measures of Walking Capacity Poststroke Across the Care Continuum

2015 ◽  
Vol 95 (11) ◽  
pp. 1507-1517 ◽  
Author(s):  
Kira M. Pattison ◽  
Dina Brooks ◽  
Jill I. Cameron ◽  
Nancy M. Salbach
Keyword(s):  
Acute Care ◽  
Health Care Professionals ◽  
Assessment Tool ◽  
Physical Therapists ◽  
Assessment Tools ◽  
Standardized Assessment ◽  
Assessment Practice ◽  
Telephone Interviews ◽  
Walking Capacity ◽  
Field Notes

Background The use of standardized assessment tools is an element of evidence-informed rehabilitation, but physical therapists report administering these tools inconsistently poststroke. An in-depth understanding of physical therapists' approaches to walking assessment is needed to develop strategies to advance assessment practice. Objectives The objective of this study was to explore the methods physical therapists use to evaluate walking poststroke, reasons for selecting these methods, and the use of assessment results in clinical practice. Design A qualitative descriptive study involving semistructured telephone interviews was conducted. Methods Registered physical therapists assessing a minimum of 10 people with stroke per year in Ontario, Canada, were purposively recruited from acute care, rehabilitation, and outpatient settings. Interviews were audiotaped and transcribed verbatim. Transcripts were coded line by line by the interviewer. Credibility was optimized through triangulation of analysts, audit trail, and collection of field notes. Results Study participants worked in acute care (n=8), rehabilitation (n=11), or outpatient (n=9) settings and reported using movement observation and standardized assessment tools to evaluate walking. When selecting methods to evaluate walking, physical therapists described being influenced by a hierarchy of factors. Factors included characteristics of the assessment tool, the therapist, the workplace, and patients, as well as influential individuals or organizations. Familiarity exerted the primary influence on adoption of a tool into a therapist's assessment repertoire, whereas patient factors commonly determined daily use. Participants reported using the results from walking assessments to communicate progress to the patient and health care professionals. Conclusions Multilevel factors influence physical therapists' adoption and daily administration of standardized tools to assess walking. Findings will inform knowledge translation efforts aimed at increasing the standardized assessment of walking poststroke.

scholarly journals Validation of the French Version of the MacArthur Competence Assessment Tool for Treatment (MacCAT-T) in a French Sample of Individuals with Schizophrenia: Validation de la version française de l’instrument d’évaluation des compétences MacArthur-traitement (MacCAT-T) dans un échantillon français de personnes souffrant de schizophrénie

2020 ◽  
pp. 070674372096644
Author(s):  
Stéphane Raffard ◽  
Cindy Lebrun ◽  
Yasmine Laraki ◽  
Delphine Capdevielle
Keyword(s):  
Decision Making ◽  
Factor Analysis ◽  
Assessment Tool ◽  
Competence Assessment ◽  
Rater Reliability ◽  
French Version ◽  
Capacity To Consent ◽  
Decision Making Capacity ◽  
Consent To Treatment ◽  
High Degree

Background: Assessing an individual’s capacity to consent to treatment is a complex and challenging task for psychiatrists and health-care professionals. Diminished capacity to consent to pharmacological treatment is a common concern in individuals with schizophrenia. The MacArthur Competence Assessment Tool for Treatment (MacCAT-T) is the most common tool used in individuals with schizophrenia to evaluate the decision-making abilities for judgments about competence to consent to treatment. This instrument assesses patients’ competence to make treatment decisions by examining their capacities in 4 areas: understanding information relevant to their condition and the recommended treatment, reasoning about the potential risks and benefits of their choices, appreciating the nature of their situation and the consequences of their choices, and expressing a choice. Despite its importance, there is no French version of this scale. Furthermore, its factor structure has never been explored, although validated measures are strongly needed to further detect deficits in patients’ decision-making abilities. The goal of this study was thus to empirically validate a French version of the MacCAT-T in a French sample of individuals with schizophrenia. Method: In this cross-sectional study, we included 125 inpatients with a diagnosis of schizophrenia from the University Department of Adult Psychiatry in Montpellier. The MacCAT-T was administered to patients by a trained psychologist. Patients were also assessed for severity of symptoms, insight into illness, and depressive and anxiety symptoms. Inter-rater reliability and psychometric properties including internal consistency, construct validity, and discriminant and divergent validity were also investigated. Results: The MacCAT-T’s internal consistency was high (Cronbach α of 0.91). A high degree of inter-rater reliability was found for all the areas of the MacCAT-T (intraclass correlation coefficient range, 0.92 to 0.98). Exploratory factor analysis revealed a 2-factor model. The factor analysis explained 50.03% of the total score variation. Component 1 included all subparts of “understanding.” Component 2 included all subparts of “appreciation” and “reasoning” and was therefore labeled “reflexivity.” After Bonferroni corrections, decision-making capacity was positively associated with insight and the severity of psychotic symptoms but not with sociodemographic variables except for education. Conclusions: The MacCAT-T demonstrated a high degree of inter-rater reliability and strong psychometric properties. The French version of the MacCAT-T is a valid instrument to assess the decision-making capacity to consent to treatment in a French sample of individuals with schizophrenia.

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