Attitudes toward the right to autonomous decision-making in psychiatric genetic testing: Controversial and context-dependent

Recent breakthroughs in psychiatric genetics have identified genetic risk factors of yet unknown clinical value. A main ethical principal in the context of psychiatric research as well as future clinical genetic testing is the respect for a person's autonomy to decide whether to undergo genetic testing, and whom to grant access to genetic data. However, experience within the psychiatric genetic research setting has indicated controversies surrounding attitudes toward this ethical principal. This study aimed to explore attitudes concerning the right of individuals to self-determine testing and disclosure of results, and to determine whether these attitudes are context-dependent, that is, not directly related to the test result but rather to specific circumstances. N = 160 individuals with major depression or bipolar disorder and n = 29 relatives of individuals with either illness completed an online-questionnaire assessing attitudes toward genetic testing, genetic research, disclosure of results, incidental findings, and access to psychiatric genetic test results. Generally, the right of the person's autonomy was considered very important, but attitudes varied. For example, half of those who considered that children should have the right to refuse psychiatric genetic testing even against their parents' will, also state that they should be tested upon their parents' wishes. Also, the majority of respondents considered the physician entitled to disregard their stated wishes concerning the disclosure of incidental findings in case of good treatment options. Thus, researchers and clinicians must be aware that attitudes toward psychiatric genetic testing are often mutable and should discuss these prior to testing.

Preventing involuntary admissions: special needs for distinct patient groups

BACKGROUND

Coercive measures in psychiatry are a controversial topic and raise ethical, legal and clinical issues. Involuntary admission of patients is a long-lasting problem and indicates a problematic pathway to care situations within the community, largely because personal freedom is fundamentally covered by the UN declaration of human rights and the German constitution.

METHODS

In this study, a survey on a large and comprehensive population of psychiatric in-patients in the eastern part of North Rhine-Westphalia, Germany, was carried out for the years 2004-2009, including 230.678 treatment cases. The data were collected from the dataset transferred to health insurance automatically, which, since 2004 is available in an electronic form. In addition, a wide variety of information on treatment, sociodemographic and illness-related factors were collected and analysed. Data were collected retrospectively and analyses were calculated using statistical software (IBM SPSS Statistics 19.0^®). Quantitative data are presented as mean and standard deviation. Due to the unequal group sizes, group differences were calculated by means of Chi-square tests or independent sample t tests. A Bonferroni correction was applied to control for multiple comparisons.

RESULTS

We found an over-representation of involuntary admissions in young men (<21 years) suffering from schizophrenia and in female patients aged over 60 with a diagnosis of dementia. Most of our results are concordant with the previous literature. Also admission in hours out of regular out-patient services elevated the risk.

CONCLUSION

The main conclusion from these findings is a need for a fortification of ambulatory treatment offers, e.g. sociopsychiatric services or ward round at home for early diagnosis and intervention. Further prospective studyies are needed.

Loudness dependence of auditory evoked potentials (LDAEP) in clinical monitoring of suicidal patients with major depression in comparison with non-suicidal depressed patients and healthy volunteers: A follow-up-study

Differences in central serotonergic function due to affective disorders and due to extraordinary situations like suicidality may be visualized using the loudness dependence of auditory evoked potentials (LDAEP). Twenty patients (mean age 43.25 ± 10.85, age range 20-61, 11 male) suffering from a major depressive episode who had either acutely attempted suicide or who had suicidal plans and behavior, which are reflected by item 3 of Hamilton Depression Rating Scale ≥ 3 (suicidality), were included in the study. Furthermore, we intended to compare their LDAEP to those of non-suicidal depressed patients as well as to healthy volunteers, each matched according to age and gender. LDAEP measurement and psychometric tests took place about 2, 5, 9, 16 and 30 days after acute suicidal action or suicide attempts. In contrast to previous results, significant differences in LDAEP could not have been shown in between the suicidal group, or by comparing results of suicidal patients to non-suicidal depressed patients or to healthy volunteers. However, when the LDAEP of non-suicidal depressed patients were compared to healthy volunteers, there was a trend for a higher LDAEP in the healthy volunteers. Further studies are necessary to detect and describe further influences on serotonergic function and confounding factors like medication, smoking, age, gender, comorbidities and methods of suicidal attempts.

Impact of social-psychiatric services and psychiatric clinics on involuntary admissions

BACKGROUND

Germany provides a wide range of highly developed mental health care to its citizens. The aim of this study was to identify factors influencing the voluntariness of admissions to psychiatric hospitals. Especially the impact of demographic factors of the region, characteristics of the psychiatric hospitals and characteristics of the psychosocial services was analyzed.

METHOD

A retrospective analysis of hospital admission registers from 13 German adult psychiatric hospitals in 2009 was conducted. Public data on the regional psychiatric accommodation and demographic situation were added. Hospitals were dichotomously divided according to their index of involuntary admissions. Group comparisons were performed between the clinics with low and high involuntary admission indices. Analysis was conducted with clinical, psychiatric provision and demographic data related to inpatients in the Landschaftsverbands Westfalen-Lippe (LWL)-PsychiatryNetwork.

RESULTS

Especially the range of services provided by the social-psychiatric services in the region such as number of supervised patients and home visits had an influence on the proportion of involuntary admissions to a psychiatric hospital. Some demographic characteristics of the region such as discretionary income showed further influence. Contrary to our expectations, the characteristics of the individual hospital seem to have no influence on the admission rate.

CONCLUSION

Social-psychiatric services show a preventive impact on involuntary acute psychiatry interventions. Sociodemographic factors and patient variables play a role with regard to the number of involuntary hospitalizations, whereas characteristics of hospitals seemed to play no role.

[Negative emotions and understanding - patients' perspective on coercion]

OBJECTIVE

This study evaluated involuntarily admitted psychiatric patients' and their perception of coercive measures (i. e. involuntary admission and physical or pharmacological restraint) by asking retrospectively which emotions were induced during the process of coercion.

METHOD

Interviews were carried out around 3 weeks after coercion. The interview consisted of 31 items categorized into demographic, nosological and coercion-related themes. Patients were also asked about their subjective experiences of the coercion. 40 patients were recruited, with 72 % suffering from psychosis-related and 21 % with affective disorders. For 22.5 % of the patients, this was their first psychiatric hospitalization. The most frequently reported emotions were rage, anger and despair. Patients who were more stable, according to the Clinical Global Impressions scale (CGI), generally evaluated the coercion as being worse.

CONCLUSION

More than half of the patients were satisfied with the treatment received during hospitalization. The potential suffering caused as a result of patients' perceptions of the coercion, and the impact of this on the course of the disease should be taken into account when developing new treatment strategies.

[Attitudes towards predictive genetic testing for Alzheimer's disease]

Most neuropsychiatric disorders have a complex aetiology. Discovery of the underlying genetics will provide insights into the disorders and allow the subsequent development of therapeutic interventions based upon an understanding of causality. The first vulnerability genes in Alzheimer's disease (AD) have been identified. The contribution of each vulnerability gene to the disorder is limited and does not enable prediction of course and onset in individual cases, only modification of the a priori risk. However, people may wish to be informed about this modification. Professionals have not favoured this form of predictive testing due to an awareness of its limitations and its potential for harm. However, little is known about public attitudes and understanding of such genetic testing in neuropsychiatric disorders. The aim of our study was to assess the attitudes of the general population and to explore the influence on these attitudes of knowledge about the illness and the understanding of risk information. In our study, a representative sample of the German general population (n=2001), relatives of patients with Alzheimer's disease (n=101) and physicians (n=43) were interviewed about their attitudes towards genetic tests for Alzheimer's disease and their perception and interpretation of risk information. To assess the influence of genetic counselling on these factors, 234 people were questioned before, and four weeks after, they were provided with detailed relevant information. Our results indicate that a substantial proportion of the German population (57%) is in favour of psychiatric genetic testing for AD in general. Even when the explanatory power of a genetic test is limited, a substantial proportion of the population (47%) expressed an interest in genetic testing. Counselling slightly decreased the interest in having a genetic test for oneself (from 47% to 38%). Physicians were more hesitant than both relatives and the general population concerning predictive genetic testing. Only a minority (11%) favoured prenatal genetic testing. Our results also show that both knowledge about AD and the capacity to interpret risk estimates are limited. While physicians' estimation of their personal risk for developing AD approximated to the actual average risk for the population, people in the general population and the relatives of AD patients tended to overestimate their personal risk. However, most of the general population still perceived this risk as average or low. While most physicians could correctly interpret information regarding the probability of risk, only one third of AD patients' relatives or members of the general population could. As the decision of an individual to undergo predictive testing relies mainly on his understanding of risk, the ability to correctly interpret risk information will be of crucial importance in the future. From a medical perspective, the prevailing approach of professional associations to genetic testing appears reasonable and therefore should not be changed at present.

Caught in the trio trap? Potential selection bias inherent to association studies using parent-offspring trios

During the last years, the validity of classic case control studies in psychiatric genetic research has been increasingly under question due to the risk of population stratification problems inherent to this type of association study. By consequence, the application of family-based association studies using parent-offspring trios has been strongly advocated. Recently, however, in a study comparing clinical characteristics between index patients from parent-offspring trios and singleton patients with bipolar affective disorder, the question was raised whether a systematic neglect of case control association studies could lead to a selection bias of susceptibility genes. In a similar approach, we compared demographic and clinical characteristics of 122 singleton bipolar patients with those of 54 bipolar patients derived from parent-offspring trios. The singleton patients did not only present with a higher age of onset, but also with a higher frequency of suicidal behavior and a higher familial loading for suicidality. These findings suggest that the genetic mechanism for disease might be different between trio-based and classic case control samples, where patients are examined whose parents are not available for genetic studies. Thus, giving up case control designs for the sake of family-based association studies could be at the risk of selecting against several genetically determined factors.