"Attenuated psychotic symptoms syndrome" as a risk syndrome of psychosis, diagnosis in DSM-V: The debate

Early detection of psychosis: helpful or stigmatizing experience? A qualitative study

AIM

Despite the large scientific debate concerning potential stigmatizing effects of identifying an individual as being in an at-risk mental state (ARMS) for psychosis, studies investigating this topic from the subjective perspective of patients are rare. This study assesses whether ARMS individuals experience stigmatization and to what extent being informed about the ARMS is experienced as helpful or harmful.

METHODS

Eleven ARMS individuals, currently participating in the follow-up assessments of the prospective Basel Früherkennung von Psychosen (FePsy; English: Early Detection of Psychosis) study, were interviewed in detail using a semistructured qualitative interview developed for this purpose. Data were analysed using Interpretative Phenomenological Analysis.

RESULTS

Most individuals experiencing first symptoms reported sensing that there was 'something wrong with them' and felt in need of help. They were relieved that a specific term was assigned to their symptoms. The support received from the early detection centre was generally experienced as helpful. Many patients reported stigmatization and discrimination that appeared to be the result of altered behaviour and social withdrawal due to the prepsychotic symptoms they experienced prior to contact with the early detection clinic.

CONCLUSIONS

The results suggest that early detection services help individuals cope with symptoms and potential stigmatization rather than enhancing or causing the latter. More emphasis should be put on the subjective experiences of those concerned when debating the advantages and disadvantages of early detection with regard to stigma. There was no evidence for increased perceived stigma and discrimination as a result of receiving information about the ARMS.

Understanding the schizophrenia prodrome

Schizophrenia is a neurodevelopmental disorder and its course is said to have an onset much before the presentation with psychotic symptoms. Even though the concept of prodrome in schizophrenia has been accepted, there is still an existence of a diagnostic dilemma. Various imaging studies and biomarkers have also been studied for confirmation of this diagnosis. The critical period of intervention when identified clarifies the doubts about faster and better outcomes.

Are current labeling terms suitable for people who are at risk of psychosis?

Inclusion of 'attenuated psychosis syndrome (APS)' in the DSM-5 has been hotly debated because of the concern about stigmatising young patients with a 'psychosis risk' label. This study aimed to investigate whether current labeling terms such as 'at risk mental state', 'ultra-high risk' (UHR) and 'APS' are suitable for people who are at risk of psychosis. This study included 105 subjects (55 patients aged 15-25years who used an early interventional service to prevent psychosis and 50 professionals who worked with them). A questionnaire regarding their opinions about the stigma associated with the above labels and the Mental Health Consumers' Experience of Stigma scale were administered. The patients were less likely than the professionals to agree that there was stigma associated with the terms 'UHR' and 'APS'. Significantly more patients with a family history of psychosis and those who had transitioned to psychosis agreed that there was stigma associated with the term 'UHR' and/or that this term should be changed. Patients who agreed with the negative attitude items for the three labeling terms and the need to change the terms 'UHR' and 'schizophrenia' showed significantly higher scores on the Stigma scale. In conclusion, patients at risk of psychosis may experience less stigma related to labels than expected by professionals, suggesting that mental health professionals may not be able to help patients unless they listen to their views on nosological and treatment issues rather than make assumptions. Previous stigmatising experiences may have strengthened the stigma attached to this label.

Disorders Related to Use of Psychoactive Substances in DSM-5: Changes and Challenges

In the most recent edition of Diagnostic and Statistical Manual (DSM) that is DSM-5 many modifications have been made in substance use disorder section. These include changes in terminology; sections and categories; diagnostic criteria; threshold for diagnosis; severity; and specifier. Additionally, there have been certain additions and omissions from the earlier version. Critical evaluation of the changes made to the section on disorders related to use of psychoactive substances in India context has not been published so far. The current paper presents a critique of the changes made to the substance use disorder section in DSM-5. The rationale for these changes put forth by DSM-5 work group on substance related disorders have been discussed. Additionally, attempt has been made to highlight the possible future challenges consequent to the current nosological revision for substance use disorder category. Overall DSM-5 seems to be promising in fulfilling its goal of DSM-ICD harmonisation and movement towards an internationally compatible and practical diagnostic system for mental health disorders. It has increased the scope of addiction by inclusion of behavioural addiction. It has also tried to balance the categorical and dimensional approach to diagnosis. However, the real test of this newer edition of one of the most commonly used nosological systems will be during clinical care and research. This will help address the debatable issues regarding the changes that DSM-5 brings with it.

'White handkerchief': a patient of attenuated psychosis syndrome

The case history of a patient with attenuated psychosis syndrome is discussed under the backdrop of controversies. On one hand, there is apprehension regarding diagnostic validity, associated stigma, unnecessary treatment, and ethical dilemmas. On the other hand, there is possibility of primary prevention.

Increased serum interleukin-6 levels in early stages of psychosis: associations with at-risk mental states and the severity of psychotic symptoms

Schizophrenia patients experience activated inflammatory responses, but little is known about the presence of such inflammatory processes at or prior to disease onset. We measured interleukin-6 (IL-6) and C-reactive protein (CRP) serum levels and plasma fibrinogen in 17 at-risk mental state (ARMS) subjects, 77 patients with psychotic disorder (PD) and 25 healthy control subjects (HC). ARMS subjects were followed-up, and transition to psychosis was registered. IL6 rs1800795 SNP was genotyped, as IL-6 levels may be influenced by this genetic variant. We did not observe significant differences in the IL6 rs1800795 SNP genotype frequencies between the groups. ARMS subjects exhibited significantly higher IL-6 levels than did controls (p=0.019). In subjects not taking cannabis, we found that patients diagnosed with ARMS or PD exhibited increased IL-6 levels when compared with HC (p=0.004). In both ARMS and PD subjects, IL-6 levels were positively associated with negative symptoms. However, with respect to positive psychotic symptoms, a different relationship was observed in the ARMS and PD groups (positive relationship in ARMS; negative relationship in PD). These findings could not be attributed to confounding variables, including gender, body mass index (BMI), tobacco consumption or the rs1800795 genotype. Six of 17 ARMS subjects (35%) exhibited a transition to psychosis during the follow-up period of 26 months. ARMS subjects who developed psychosis exhibited increased median IL-6 levels compared with those who did not transition (0.61 vs. 0.35pg/mL). However, this difference was not statistically significant, which could be explained by a lack of statistical power due to the small sample size. Our results suggest that IL-6 may be a biomarker for early psychotic symptoms; however, further studies in larger samples are needed to confirm this result.

Unhealthy lifestyle in early psychoses: the role of life stress and the hypothalamic-pituitary-adrenal axis

An unhealthy lifestyle is thought to contribute to the metabolic syndrome in subjects with psychoses. In the present study we aimed to study whether life stress or cortisol measures may influence dietary patterns in subjects with early stages of psychoses. We studied 81 subjects with early psychoses (65 subjects with a psychotic disorder [PD] and <5 years of illness; 16 subjects at risk for psychosis [high-risk, HR]) and a control group of 25 healthy subjects (HS). Dietary habits were examined by a dietician, who registered food intake (24h recall). Physical activity was assessed by validated questionnaire. Life stress was assessed with Holmes-Rahe Social Readjustment Scale. Fasting morning salivary and plasma cortisol levels were determined. We found that PD and HR reported an unhealthier lifestyle with more smoking, reduced physical activity and poorer dietary habits. HR reported increased intake of calories and saturated fatty acids and reduced protein consumption, when compared to HS. Life stress was a predictor of these adverse behaviours, although we found opposite associations in HR and PD. Life stress was associated with increased intake of refined sugar in PD and decreased intake in HR and HS. Salivary cortisol was related to increased intake of saturated fat only in HR subjects, but cortisol levels in plasma or saliva were not associated with other dietary habits or obesity measures (BMI, waist circumference). Our study suggests that unhealthy diet in early psychoses is influenced by stress, but our data do not support this effect being mediated by hypercortisolism. Future preventive interventions in psychosis may target dietary habits, particularly for those who are at risk for psychosis.

Disturbances in reality testing as markers of risk in offspring of parents with bipolar disorder: a systematic review from a developmental psychopathology perspective

OBJECTIVES

This comprehensive review examined the prevalence and progression of disturbances in reality testing (DRT), defined as psychotic symptoms, cognitive disruptions, and thought problems, in offspring of parents with bipolar disorder (O-BD). Our approach was grounded in a developmental psychopathology perspective and considered a broader phenotype of risk within the bipolar-schizophrenia spectrum as measured by categorical and dimensional assessments of DRT in high-risk youth.

METHODS

Relevant studies were identified from numerous sources (e.g., PubMed, reference sections, and colleagues). Inclusion criteria were: (i) family risk studies published between 1975 and 2012 in which O-BD were contrasted with a comparison group (e.g., offspring of parents who had other psychiatric disorders or were healthy) on DRT outcomes and (ii) results reported for categorical or dimensional assessments of DRT (e.g., schizophrenia, psychotic symptoms, cluster A personality traits, or thought problems), yielding a total of 23 studies.

RESULTS

Three key findings emerged: (i) categorical approaches of DRT in O-BD produced low incidence base rates and almost no evidence of significant differences in DRT between O-BD and comparison groups, whereas (ii) many studies using dimensional assessments of DRT yielded significant group differences in DRT. Furthermore, (iii) preliminary evidence from dimensional measures suggested that the developmental progression of DRT in O-BD might represent a prodrome of severe psychological impairment.

CONCLUSIONS

Preliminary but promising evidence suggests that DRT is a probable marker of risk for future impairment in O-BD. Methodological strengths and weaknesses, the psychometric properties of primary DRT constructs, and future directions for developmental and longitudinal research with O-BD are discussed.

Conceptual issues in the classification of psychosis

PURPOSE OF REVIEW

To provide an update on the conceptual status of attenuated psychosis syndrome (APS) as a psychiatric disorder.

RECENT FINDINGS

In May 2012, the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) Task Force announced that the planned introduction of APS as a new diagnosis in DSM-5 was cancelled and that APS was being moved to 'Section III' of the manual as a diagnostic construct requiring more work. Recent studies of APS have reflected this uncertainty and debate over its validity.

SUMMARY

Before and after the decision in May 2012 to remove APS as a new diagnosis in DSM-5, scientific work has proceeded in a robust manner to shore up the validity of APS as a diagnostic construct. Recent work on APS has revolved around a series of unresolved questions: the actual incidence of conversion of APS to full-blown psychosis, the identification of the subgroup that will convert, the appropriate treatment for APS, the ability of treatment to prevent conversion to psychosis, the wide range of long-term outcomes of APS and finally the decision whether to include APS as a formal psychiatric diagnosis. Although the debate continues, a substantial number of the major researchers have argued that APS does not yet enjoy a degree of validity that warrants inclusion as a formal diagnosis.

Prevalence of attenuated psychotic symptoms and their relationship with DSM-IV diagnoses in a general psychiatric outpatient clinic

OBJECTIVE

Attenuated psychosis syndrome (APS) is being proposed for inclusion in Section III of DSM-5 for those impaired by subthreshold psychotic symptoms that are not better accounted for by another diagnosis and not meeting criteria for a psychotic disorder. The rationale is to identify patients who are at high risk for transition to a psychotic disorder in the near future. However, the potential impact of using this new diagnosis in routine clinical practice settings has not been carefully examined.

METHOD

As part of the Rhode Island Methods to Improve Diagnostic Assessment and Services (MIDAS) project, a treatment-seeking psychiatric outpatient sample (n = 1,257) recruited from June 1997 to June 2002 completed a self-report measure of psychiatric symptoms and afterward were administered structured clinical interviews. For the current post hoc study, we investigated the prevalence rate of endorsing attenuated psychotic experiences to identify patients who could potentially meet criteria for APS.

RESULTS

After the exclusion of those with lifetime DSM-IV psychotic disorders, psychotic experiences remained highly prevalent in the sample (28% reported at least 1 psychotic experience during the past 2 weeks), and rates were similar across all major DSM-IV diagnostic categories. Only 1 patient (0.08%) reported psychotic experiences but did not meet criteria for another current DSM disorder; however, this individual endorsed other nonpsychotic symptoms of greater severity. Psychotic experience endorsement was positively correlated with nearly all other nonpsychotic symptom domains, and multivariate analysis showed that general clinical severity predicted endorsement of psychotic experiences (P values < .001).

CONCLUSIONS

We could not identify any patients who clearly met criteria for APS alone in our sample. Psychotic experiences appear to be common in outpatients and represent nonspecific indicators of psychopathology. Diagnosing APS in the community could result in high rates of false-positives or high rates of APS "comorbidity" with other nonpsychotic disorders, leading to the increased use of antipsychotic medications without clear need. Therefore, the clinical utility of adding APS to the diagnostic system remains highly questionable.

Ethical implications for clinical practice and future research in "at risk" individuals

The last 15 years have witnessed a shift in schizophrenia research with increasing interest in earlier stages of illness with the hope of early intervention and ultimately prevention of psychotic illness. Large-scale longitudinal studies have identified clinical and biological risk factors associated with increased risk of psychotic conversion, which together with symptomatic and demographic risk factors may improve the power of prediction algorithms for psychotic transition. Despite these advances, 45-70% of at risk subjects in most samples do not convert to frank psychosis, but continue to function well below their age matched counterparts. The issue is of utmost importance in light of the upcoming DSM-V and the possible inclusion of the attenuated psychotic symptoms syndrome (APSS) diagnosis, with clinical and ethical implications. Clinical considerations include feasibility of reliably diagnosing the at risk state in non-academic medical centers, variable psychotic conversion rates, a non-uniform definition of conversion and extensive debate about treatment for individuals with an ill-defined outcome. On the ethical side, diagnosing APSS could lead to unnecessary prescribing of antipsychotics with long-term deleterious consequences, slow research by providing a false sense of comfort in the diagnosis, and have psychosocial implications for those who receive a diagnosis. Thus it may be prudent to engage at risk populations early and to use broad-spectrum treatments with low risk benefit ratios to relieve functional impairments, while simultaneously studying all subsets of the at risk population.