Distinct communication patterns during genetic counseling for late-onset Alzheimer's risk assessment

The development and preliminary evaluation of the Genetic Counseling Skills Checklist

Genetic counseling (GC) relies on communication to help people understand and adapt to genetic contributions of disease, and there is need for a practical and reliable method of comprehensively documenting GC communication skills without intensive coding. To this end, we created a novel process measure called the Genetic Counseling Skills Checklist (GCSC), utilizing previously validated measures, communication/counseling frameworks, and prior research findings. A multistage iterative process was used to develop, evaluate, and modify the GCSC to improve its clarity, usability, and content validity. To assess interrater reliability, randomly assigned, untrained individuals (i.e., coders) used the GCSC version 3 to code multiple simulated GC sessions. Average measures intraclass correlation coefficients (ICCs) were calculated for each of the 8 GCSC process categories using one-way, random effects models. After relatively minor modifications to the GCSC, two pairs of experienced coders used GCSC version 4 to independently code additional GC sessions and Cohen's Kappa coefficients (κ) were calculated to assess interrater reliability for each process category. The GCSC contains five to eight items within each category and demonstrates good content validity given its ability to capture nearly all GC skills that genetic counselors reported using in a prior qualitative study. Interrater reliability of GCSC version 3 among coders with limited experience was moderate or good for 6 out of the 8 process categories as evidenced by ICCs ranging from 0.55 to 0.86. Average interrater reliability of GCSC version 4 among one pair of experienced coders was strong for all eight process categories (κ ranging from 0.82 to 0.94); among the second pair of experienced coders scores were strong for six categories (κ ranging from 0.80 to 0.87) and moderate for two categories (κ of 0.77 and 0.78). The results suggest the need for training and experience to assure adequate interrater reliability across GCSC coders. Future work is needed to create a formalized training program for coders, complete a larger study to further validate the measure, and use the GCSC to document variability in skills used across providers and sessions.

How to implement person-centred care and support for dementia in outpatient and home/community settings: Scoping review

Background

Little prior research focused on person-centred care and support (PCCS) for dementia in home, community or outpatient care. We aimed to describe what constitutes PCCS, how to implement it, and considerations for women who comprise the majority of affected persons (with dementia, carers).

Methods

We conducted a scoping review by searching multiple databases from 2000 inclusive to June 7, 2020. We extracted data on study characteristics and PCCS approaches, evaluation, determinants or the impact of strategies to implement PCCS. We used summary statistics to report data and interpreted findings with an existing person-centred care framework.

Results

We included 22 studies with qualitative (55%) or quantitative/multiple methods design (45%) involving affected persons (50%), or healthcare workers (50%). Studies varied in how PCCS was conceptualized; 59% cited a PCC definition or framework. Affected persons and healthcare workers largely agreed on what constitutes PCCS (e.g. foster partnership, promote autonomy, support carers). In 4 studies that evaluated care, barriers of PCCS were reported at the affected person (e.g. family conflict), healthcare worker (e.g. lack of knowledge) and organizational (e.g. resource constraints) levels. Studies that evaluated strategies to implement PCCS approaches were largely targeted to healthcare workers, and showed that in-person inter-professional educational meetings yielded both perceived (e.g. improved engagement of affected persons) and observed (e.g. use of PCCS approaches) beneficial outcomes. Few studies reported results by gender or other intersectional factors, and none revealed if or how to tailor PCCS for women. This synthesis confirmed and elaborated the PCC framework, resulting in a Framework of PCCS for Dementia.

Conclusion

Despite the paucity of research on PCCS for dementia, synthesis of knowledge from diverse studies into a Framework provides interim guidance for those planning or evaluating dementia services in outpatient, home or community settings. Further research is needed to elaborate the Framework, evaluate PCCS for dementia, explore determinants, and develop strategies to implement and scale-up PCCS approaches. Such studies should explore how to tailor PCCS needs and preferences based on input from persons with dementia, and by sex/gender and other intersectional factors such as ethnicity or culture.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12913-022-07875-w.

Adaptation of the working alliance inventory for the assessment of the therapeutic alliance in genetic counseling

The concept of therapeutic alliance is central to genetic counseling as the mechanism through which the outcomes of empowerment and effective coping are likely to be achieved. To date, there have been no published systematic assessments of the therapeutic relationship in genetic counseling. We adapted a previously validated measure of the therapeutic alliance to genetic counseling and assessed its reliability and validity. Participants were enrolled in a clinical genomic study where they were randomized to receive education about carrier results via a Web platform or via a genetic counselor and then further randomized to receive genetic counseling (without additional education) or not. We rated the therapeutic alliance from audio recordings of 120 genetic counseling sessions. We modified the observer version of the Working Alliance Inventory (WAI-O), initially designed to assess therapeutic relationships in psychotherapy. We examined internal consistency reliability by calculating Cronbach's alpha and inter-rater reliability through both percent agreement and Gwet's alternative agreement coefficient (AC). Regression analyses were used to evaluate the relationship of WAI-O scores with session length and with the designation of the session as one in which prior education was delivered by the genetic counselor or not. The adapted scale had high-reliability characteristics with agreement of 88%-93%, Gwet's AC of 0.84-0.90, and Cronbach's alpha of 0.89-0.93 for the three WAI-O subscales (bonds, goals, and tasks). Although there was no difference in alliance based on whether prior education was provided by the genetic counselor, the total WAI-O score significantly increased with increasing session length (beta =0.667, p<.001), providing preliminary evidence of construct validity. The WAI-O that we have adapted can be used reliably with two independent raters to assess the therapeutic alliance in studies of genetic counseling. The initial evidence for construct validity is promising and should be reassessed in future genetic counseling studies using the WAI-O.

Genetic Sample Provision Among National Alzheimer's Coordinating Center Participants

BACKGROUND

Genetic data help detect preclinical Alzheimer's disease and target individuals for clinical trials, making genetic research engagement critical for continued advancement in dementia prevention and treatment.

OBJECTIVE

To understand what individual and institutional factors may relate to provision of genetic samples within the Alzheimer's Disease Centers.

METHODS

Data from the National Alzheimer's Coordinating Center Uniform Data Set (2009-2016) were obtained along with genetic sample availability. Logistic regression was used to assess independent contributions of demographic and clinical characteristics to the probability of sample provision. Sites contributing data completed a brief survey exploring regulatory and scientific issues related to genetic research engagement.

RESULTS

Just over half (52.1%) of the 27,519 unique participants had genetic data available. Female sex, white race, non-Hispanic ethnicity, normal cognition, and greater than 5 years of follow-up were associated with greater probability of availability. Sites identified refusals as the most frequent barrier to sample provision, followed by staff availability.

CONCLUSION

These results highlight the importance of strategies to promote minority engagement and encourage earlier genetic research participation.

Re-examining the Ethics of Genetic Counselling in the Genomic Era

Respect for patient autonomy has served as the dominant ethical principle of genetic counselling, but as we move into a genomic era, it is time to actively re-examine the role that this principle plays in genetic counselling practice. In this paper, we argue that the field of genetic counselling should move away from its emphasis on patient autonomy and toward the incorporation of a more balanced set of principles that allows counsellors to offer clear guidance about how best to obtain or use genetic information. We begin with a brief history of how respect for patient autonomy gained such emphasis in the field and how it has taken on various manifestations over time, including the problematic concept of nondirectiveness. After acknowledging the field's preliminary move away from nondirectiveness, we turn to a series of arguments about why the continued dominance of patient autonomy has become untenable given the arrival of the genomic era. To conclude, we describe how a more complete set of bioethical principles can be adapted and used by genetic counsellors to strengthen their practice without undermining patient autonomy.

What constitutes patient-centred care for women: a theoretical rapid review

BACKGROUND

Women experience disparities in health care delivery and outcomes. Patient-centred care for women (PCCW) is needed. This study examined how PCC has been conceptualized and operationalized in women's health research.

METHODS

We conducted a theoretical rapid review of PCCW in MEDLINE, EMBASE, CINAHL and SCOPUS from 2008 to 2018 for studies involving women aged 18 years or greater with any condition, and analyzed data using an established 6-domain framework of patient-centred communication.

RESULTS

We included 39 studies, which covered the following clinical areas: maternal care, cancer, diabetes, HIV, endometriosis, dementia, distal radius fracture, overactive bladder, and lupus erythematosus. The 34 (87.2%) studies that defined or described PCC varied in the PCC elements they addressed, and none addressed all 6 PCC domains. Common domains were exchanging information (25, 73.5%) and fostering the patient-clinician relationship (22, 64.7%). Fewer studies addressed making decisions (16, 47.1%), enabling patient self-management (15, 44.1%), responding to emotions (12, 35.3%), or managing uncertainty (1, 2.9%). Compared with mixed-gender studies, those comprised largely of women more frequently prioritized exchanging information above other domains. Few studies tested strategies to support PCCW or evaluated the impact of PCCW; those that did demonstrated beneficial impact on patient knowledge, satisfaction, well-being, self-care and clinical outcomes.

CONCLUSIONS

Studies varied in how they conceptualized PCCW, and in many it was defined narrowly. Few studies examined how to implement or measure PCCW; thus, we lack insight on how to operationlize PCCW. Thus, further research is needed to confirm this, and whether PCCW differs across conditions, knowledge needed to inform policies, guidelines and measures aimed at improving health care and associated outcomes for women.

Patient characteristics, experiences and perceived value of pharmacogenetic testing from a single testing laboratory

Aims: Patients' use of and experience with pharmacogenetic (PGx) testing may be impacted by several factors including patient and provider knowledge, health status, and perceived understanding of results. Materials & Methods: We conducted an online survey of individuals who had subscribed to a newsletter service offered by a US commercial PGx testing company, Genelex. Results: We find that about half of respondents that had PGx testing reviewed one or more of the lab's web-pages, 43% believed they understood the test results very well, but 40% did not know or could not recall whether their provider had changed their prescription based on the test result. Conclusions: There was limited use of the laboratory's online resources by respondents undergoing PGx testing. Increased awareness of the website may improve understanding of test results and facilitate discussions with providers about medication changes.

Discourse Features Among Providers, Patients, and Companions and Their Effect on Outcomes of Dementia Diagnosis Disclosure

OBJECTIVES

Receiving a diagnosis of dementia has major implications. Although protocols for disclosing difficult information have been developed for other health conditions, no such evidence-based method exists for dementia. As a step toward that goal, this study analyzed the discourse within dementia diagnosis disclosure sessions to identify conversational features associated with psychological outcomes.

METHOD

The Roter Interaction Analysis System (RIAS) was used to code the discourse among patients, their companions, and providers during 84 dementia diagnosis disclosure sessions following an initial evaluation at an Alzheimer's Disease Research Center.

RESULTS

Providers dominated the conversation in terms of overall time spent talking. With more severe dementia, patients spoke less and companions spoke more. Provider-positive rapport building was associated with lower patient depression and anxiety following the disclosure session. Patient-positive rapport building was associated with higher companion anxiety, but only when the patient was not suspected to have dementia. No associations were found between other types of discourse and patient or companion psychological outcomes.

DISCUSSION

A relatively small amount of positive rapport building by providers can lead to reduced distress following dementia disclosure. Dementia disclosure best practices should emphasize patient-centered communication techniques in order to minimize psychological distress following diagnosis.

A Key Role for the Genetic Counsellor in the Genomics Era

New genetic testing technologies such as microarrays and whole exome sequencing mean the diagnostic potential for a child with a development disorder is greatly increased over traditional testing techniques.  With this increased potential comes increased expectations from families and professionals about the answers a diagnosis will provide.  However, limitations remain and a proportion of individuals will continue to remain undiagnosed.  In addition, some individuals will receive novel or very rare diagnoses about which very little is known in terms of prognosis and effective treatments.  In this paper, I present an argument for why these families would benefit from additional Genetic Counsellor support and how Clinical Genetics services in the UK could provide this support.  I acknowledge that resources are limited, but as demands on services increase and interactions with families become shorter, I argue that this kind of service should be prioritised, for the benefit of these families.

Clinical implications of APOE genotyping for late-onset Alzheimer's disease (LOAD) risk estimation: a review of the literature

Alzheimer's disease is a genetically complex neurodegenerative disorder representing the leading cause of dementia. Advances in personal genomics are increasing the public uptake of genetic susceptibility testing for complex diseases such as late-onset Alzheimer's disease (LOAD). For LOAD, the discovery of the major risk ε4 allele of the APOE gene has prompted a debate on the ethics and utility of presymptomatic (i.e., predictive) testing. Although the mechanistic contribution of APOE to disease onset remains uncertain, presymptomatic genetic testing provides a relative risk of developing LOAD. Presymptomatic testing for complex disorders, such as LOAD is much less conclusive than early-onset Alzheimer's disease (EOAD) which follows a Mendelian inheritance pattern. Given the lack of preventive strategies available for EOAD or LOAD, APOE genotyping offers limited clinical utility, thus, raising ethical and practical questions. We conducted a systematic search of five electronic databases or primary studies published during January 2008-January 2018 which investigated practical and ethical issues of presymptomatic APOE genotyping for LOAD risk estimation. We identified 31 articles which suggested that APOE genotyping for LOAD susceptibility provides potential benefits to at-risk patients and can guide changes in positive health-related behaviors. However, other individuals may experience test-related anxiety, depression and psychological distress. Future research should focus on developing an integrated risk assessment tool to enhance the utility of APOE genotyping. Furthermore, empirical research is required to understand actual psychological and social implications associated with testing.

Genetic counseling globally: Where are we now?

The genetic counseling profession is continuing to develop globally, with countries in various stages of development. In some, the profession has been in existence for decades and is increasingly recognized as an important provider of allied health, while in others it is just beginning. In this article, we describe the current global landscape of the genetic counseling specialty field's professional development. Using examples of the United States, United Kingdom, Canada, Australia, South Africa, and various countries in Asia, we highlight the following: (a) status of genetic counseling training programs, (b) availability of credentialing through government and professional bodies (certification, registration, and licensure), and potential for international reciprocity, (c) scope of clinical practice, and (d) health‐care system disparities and cultural differences impacting on practice. The successful global implementation of precision medicine will require both an increased awareness of the importance of the profession of “genetic counselor” and flexibility in how genetic counselors are incorporated into each country's health‐care market. In turn, this will require more collaboration within and across nations, along with continuing engagement of existing genetic counseling professional societies.

How do providers discuss the results of pediatric exome sequencing with families?

AIM

This study provides preliminary data on the process and content of returning results from exome sequencing offered to children through one of the Clinical Sequencing Exploratory Research (CSER) projects.

MATERIALS & METHODS

We recorded 25 sessions where providers returned diagnostic and secondary sequencing results to families. Data interpretation utilized inductive thematic analysis.

RESULTS

Typically, providers followed a results report and discussed diagnostic findings using technical genomic and sequencing concepts. We identified four provider processes for returning results: teaching genetic concepts; assessing family response; personalizing findings; and strengthening patient-provider relationships.

CONCLUSION

Sessions should reflect family interest in medical management and next steps, and minimize detailed genomic concepts. As the scope and complexity of sequencing increase, the traditional information-laden counseling model requires revision.

Elaboration of the Reciprocal-Engagement Model of Genetic Counseling Practice: a Qualitative Investigation of Goals and Strategies

As the genetic counseling field evolves, a comprehensive model of practice is critical. The Reciprocal-Engagement Model (REM) consists of 5 tenets and 17 goals. Lacking in the REM, however, are well-articulated counselor strategies and behaviors. The purpose of the present study was to further elaborate and provide supporting evidence for the REM by identifying and mapping genetic counseling strategies to the REM goals. A secondary, qualitative analysis was conducted on data from two prior studies: 1) focus group results of genetic counseling outcomes (Redlinger-Grosse et al., Journal of Genetic Counseling, 2015); and 2) genetic counselors' examples of successful and unsuccessful genetic counseling sessions (Geiser et al. 2009). Using directed content analysis, 337 unique strategies were extracted from focus group data. A Q-sort of the 337 strategies yielded 15 broader strategy domains that were then mapped to the successful and unsuccessful session examples. Differing prevalence of strategy domains identified in successful sessions versus the prevalence of domains identified as lacking in unsuccessful sessions provide further support for the REM goals. The most prevalent domains for successful sessions were Information Giving and Use Psychosocial Skills and Strategies; and for unsuccessful sessions, Information Giving and Establish Working Alliance. Identified strategies support the REM's reciprocal nature, especially with regard to addressing patients' informational and psychosocial needs. Patients' contributions to success (or lack thereof) of sessions was also noted, supporting a REM tenet that individual characteristics and the counselor-patient relationship are central to processes and outcomes. The elaborated REM could be used as a framework for certain graduate curricular objectives, and REM components could also inform process and outcomes research studies to document and further characterize genetic counselor strategies.

Disclosing genetic risk of Alzheimer's disease to cognitively impaired patients and visit companions: Findings from the REVEAL Study

OBJECTIVE

To describe the impact of genetic information on Alzheimer's disease (AD) risk communication to patients with mild cognitive impairment (MCI) and their visit companions.

METHODS

Participants of the fourth REVEAL Study trial were randomized to receive AD risk assessments with or without genotype results. We coded 79 audio recorded risk disclosure sessions with the Roter Interaction Analysis System. Multilevel analyses explored differences in communication when disclosed risks were based on age and MCI diagnosis alone or in addition to APOE genotype status.

RESULTS

The addition of genotype results diminished the patient-centered nature of the sessions (p<0.001). When ε4 positive relative to ε4 negative results were disclosed, visit companions were more verbally active (p<0.05), disclosed more medical information (p<0.05), were more positive verbally and non-verbally (p<0.05) and were more proactive in setting the visit agenda (p<0.05).

CONCLUSIONS

Delivery of complex genetic risk information reduces the patient-centeredness of disclosure sessions. Visit companions are more actively engaged in session communication when patients are at increased genetic risk for AD.

PRACTICE IMPLICATIONS

AD risk discussions can be improved by supporting the positive role of visit companions and addressing the challenges inherent in the delivery of complex genetic information in a patient-centered manner.

Conceptualizing genetic counseling as psychotherapy in the era of genomic medicine

Discussions about genetic contributions to medical illness have become increasingly commonplace. Physicians and other health-care providers in all quarters of medicine, from oncology to psychiatry, routinely field questions about the genetic basis of the medical conditions they treat. Communication about genetic testing and risk also enter into these conversations, as knowledge about genetics is increasingly expected of all medical specialists. Attendant to this evolving medical landscape is some uncertainty regarding the future of the genetic counseling profession, with the potential for both increases and decreases in demand for genetic counselors being possible outcomes. This emerging uncertainty provides the opportunity to explicitly conceptualize the potentially distinct value and contributions of the genetic counselor over and above education about genetics and risk that may be provided by other health professionals. In this paper we suggest conceptualizing genetic counseling as a highly circumscribed form of psychotherapy in which effective communication of genetic information is a central therapeutic goal. While such an approach is by no means new--in 1979 Seymour Kessler explicitly described genetic counseling as a "kind of psychotherapeutic encounter," an "interaction with a psychotherapeutic potential"--we expand on his view, and provide research evidence in support of our position. We review available evidence from process and outcome studies showing that genetic counseling is a therapeutic encounter that cannot be reduced to one where the counselor performs a simple "conduit for information" function, without losing effectiveness. We then discuss potential barriers that may have impeded greater uptake of a psychotherapeutic model of practice, and close by discussing implications for practice.