Cyclothymia reloaded: A reappraisal of the most misconceived affective disorder

The relationship between prodromal symptom levels and affective temperament features and emotional dysregulation in patients diagnosed with bipolar disorder and their first-degree relatives: A controlled study

BACKGROUND

The frequency of developing psychiatric symptoms is higher in the first-degree relatives of bipolar patients compared to the healthy population. This study aims to determine the possible diagnosis of bipolarity by revealing the bipolar prodromal features, temperament changes, and emotional disregulation in the first-degree relatives of bipolar patients and their interrelationships.

METHODS

A total of 150 patients, including bipolar disorder patients, their first-degree relatives, and a healthy control group, aged 18-65 who met the study inclusion criteria, were included in the study. Sociodemographic data form, Bipolar Prodromal Symptom Scale (BPSS), Temperament Evaluation of Memphis, Pisa, Paris, San Diego Autoquestionnaire (TEMPS-A), and Difficulty in Emotion Regulation Scale (DERS) were administered to all participants.

RESULTS

Significant differences were found between the BPSS, TEMPS-A, and DERS total and subscale scores of the bipolar patient group, first-degree relatives, and healthy control group (p < 0.001). There were significant differences in BPSS frequency and severity subscale scores, TEMPS-A hyperthymic and cyclothymic subscale scores, and DERS strategy, goal-oriented, and awareness subscale scores between patients and their first-degree relatives (p < 0.001). Additionally, all scale scores of the patient relatives were significantly different from the healthy control group (p < 0.001). A significant relationship was found between the prodromal scores and temperament scores of the patient relatives, and between the temperament scores and DERS scores (p < 0.001).

CONCLUSION

It has been observed that the severity and frequency of bipolar prodromal symptoms, temperament changes, and difficulty in mood regulation are higher in bipolar patients and their first-degree relatives compared to the healthy population. Differences were found in hyperthymic and cyclothymic temperament features and difficulty in mood regulation scores between bipolar patients and their first-degree relatives. Patient relatives showed significant changes in all parameters compared to the healthy group. The severity of bipolar prodromal symptoms in patient relatives was associated with cyclothymic and anxious temperament features, while the frequency of bipolar symptoms was associated with anxious temperament. Relationships were found between some temperament and mood regulation difficulty sub-scores. In light of these findings, evaluating clinical variables such as the frequency and severity of prodromal symptoms, temperament features, and difficulty in mood regulation in the first-degree relatives of bipolar patients may be an appropriate approach for diagnosing mood disorders.

The Impact of Negative Emotional Dysregulation on the Outcome of Bariatric Surgery in Patients with Severe Obesity: An Observational One-Year Follow-Up Study

Background: Psychiatric symptoms are highly prevalent in patients with severe obesity, often representing pivotal factors in the development and progression of this condition. This study examines the association between negative emotional dysregulation (NED) and weight loss following bariatric surgery. Methods: Ninety-nine patients were consecutively enrolled at the Obesity Center of the Pisa University Hospital between March 2019 and February 2021, during a routine psychiatric evaluation before bariatric surgery. Psychopathological dimensions were assessed using the Mini-International Neuropsychiatric Interview (MINI), the Reactivity, Intensity, Polarity, and Stability questionnaire in its 40-item version (RIPoSt-40), the Wender-Reimherr Adult Attention Deficit Disorder Scale (WRAADDS) and the Barratt Impulsiveness Scale (BIS-11). Based on a RIPoSt-40 cut-off score of 70, subjects were divided into two groups: with (NED+) and without (NED-) NED. Results: NED+ subjects had a higher rate of psychiatric comorbidities and eating disorders than NED- patients. Of the total sample, 76 underwent bariatric surgery, and 65 of them were re-evaluated one-year after surgery. Among them, 10 of 28 NED+ subjects (37.5%) had inadequate weight loss one year after surgery compared to 5 of 37 NED- subjects (13.5%) (p = 0.035, OR 3.55, 95%, C.I. 1.05-12.03). Conclusions: Our results suggest a significant association between NED and inadequate weight loss at one-year post surgery.

Reported Personality Traits and Histories of Childhood Maltreatment in Borderline Personality Disorder and Bipolar 2 Disorder: A Comparative Study

This study compared borderline personality disorder (BPD) and bipolar 2 disorder (BP 2 disorder) with respect to reported childhood trauma and Five-Factor personality traits using the Childhood Trauma Questionnaire (CTQ) and the NEO Five-Factor Inventory (NEO-FFI). Participants were 50 men and women, aged 18-45, with DSM-5-diagnosed BPD and 50 men and women in the same age group with DSM-5-diagnosed BP 2 disorder. Participants could not meet criteria for both BPD and BP 2 disorder. Borderline participants had significantly higher scores on the neuroticism subscale and significantly lower scores on the agreeableness subscale of the NEO-FFI. After correction for multiple comparisons, there were no between-group differences on CTQ scores. Study results suggest that BPD and BP 2 disorder differ primarily with respect to underlying temperament/genetic architecture and that environmental factors have only a limited role in the differential etiologies of the two disorders.

Novel Advancements in COVID-19 and Neuroscience

From an initial cluster of cases reported in Wuhan, the SARS-Cov-2 infection has since spread globally, causing a pandemic that began on 11 March 2020 [...].

Evolutionary psychiatry: foundations, progress and challenges

Evolutionary biology provides a crucial foundation for medicine and behavioral science that has been missing from psychiatry. Its absence helps to explain slow progress; its advent promises major advances. Instead of offering a new kind of treatment, evolutionary psychiatry provides a scientific foundation useful for all kinds of treatment. It expands the search for causes from mechanistic explanations for disease in some individuals to evolutionary explanations for traits that make all members of a species vulnerable to disease. For instance, capacities for symptoms such as pain, cough, anxiety and low mood are universal because they are useful in certain situations. Failing to recognize the utility of anxiety and low mood is at the root of many problems in psychiatry. Determining if an emotion is normal and if it is useful requires understanding an individual's life situation. Conducting a review of social systems, parallel to the review of systems in the rest of medicine, can help achieve that understanding. Coping with substance abuse is advanced by acknowledging how substances available in modern environments hijack chemically mediated learning mechanisms. Understanding why eating spirals out of control in modern environments is aided by recognizing the motivations for caloric restriction and how it arouses famine protection mechanisms that induce binge eating. Finally, explaining the persistence of alleles that cause serious mental disorders requires evolutionary explanations of why some systems are intrinsically vulnerable to failure. The thrill of finding functions for apparent diseases is evolutionary psychiatry's greatest strength and weakness. Recognizing bad feelings as evolved adaptations corrects psychiatry's pervasive mistake of viewing all symptoms as if they were disease manifestations. However, viewing diseases such as panic disorder, melancholia and schizophrenia as if they are adaptations is an equally serious mistake in evolutionary psychiatry. Progress will come from framing and testing specific hypotheses about why natural selection left us vulnerable to mental disorders. The efforts of many people over many years will be needed before we will know if evolutionary biology can provide a new paradigm for understanding and treating mental disorders.

Persistent Non-Suicidal Self-Injury and Suicidality in Referred Adolescents: A Longitudinal Study Exploring the Role of Cyclothymic Temperament

Non-suicidal self-injury (NSSI) is deliberate harm to the body surface without suicidal intent, though it may be a predictor of suicide attempts. Our aim was to test the hypothesis that persisting and recovering NSSI may have a different longitudinal risk for suicidal ideation and behavior and that the intensity of Cyclothymic Hypersensitive Temperament (CHT) may increase this risk. Fifty-five patients (mean age 14.64 ± 1.77 years) referred for mood disorders according to the DSM-5 were consecutively recruited and followed-up for a mean of 19.79 ± 11.67 months and grouped according to the presence/absence of NSSI at baseline and follow-up into three groups: without NSSI (non-NSSI; n = 22), with NSSI recovered at follow-up (past-NSSI; n = 19), and with persistent NSSI at follow-up (pers-NSSI; n = 14). At follow-up, both NSSI groups were more severely impaired and failed to improve internalizing problems and dysregulation symptoms. Both NSSI groups reported higher scores in suicidal ideation compared to non-NSSI, but only pers-NSSI presented higher scores in suicidal behavior. CHT was higher in pers-NSSI, followed by past-NSSI and then by non-NSSI. Our data support a continuity between NSSI and suicidality, and they suggest the prognostic validity of persistent NSSI, associated with highest CHT scores.

Predicting bipolar disorder I/II in individuals at clinical high-risk: Results from a systematic review

INTRODUCTION

No systematic review has estimated the consistency and the magnitude of the risk of developing bipolar disorder I-II (BD-I/II) in individuals at clinical high risk for bipolar disorder (CHR-BD).

METHODS

PubMed and Web of Science databases were searched until April 2022 in this pre-registered (PROSPERO CRD42022346515) PRISMA-compliant systematic review to identify longitudinal studies in individuals meeting pre-defined CHR-BD criteria. The risk of bias was assessed using the Newcastle-Ottawa Scale, and results were systematically synthesized around CHR-BD criteria across follow-up periods and different subgroups.

RESULTS

Altogether, 13 studies were included reporting on nine prospective independent cohorts (n = 678 individuals at CHR-BD). The mean age of participants was 15.7 years (range 10.1-22.6 years), and 54.2 % were females. The most common CHR-BD subgroup was subthreshold mania (55.5 %), followed by BD-Not Otherwise Specified (BD-NOS: 33.3 %). Development of BD I/II ranged from 7.1 % to 23.4 % after 2 years. Development of BD-I ranged from 3.4 % at 4 years to 23 % at 8 years. Development of BD-II ranged from 10 % at 2 years to 63.8 % at 4 years. The risk of developing BD-I appeared highest in those meeting BD-NOS criteria (23 % at eight years). Predictors of development of BD were identified but remained mostly unreplicated. The quality of the included studies was moderate (NOS = 5.2 ± 1.1).

CONCLUSIONS

Emerging data from research studies point towards the promising utility of CHR-BD criteria. These studies may pave the way to the next generation of research, implementing detection, prognostication, and preventive interventions in individuals at CHR-BD identified and followed in clinical practice.

Comorbidities in Youth with Bipolar Disorder: Clinical Features and Pharmacological Management

BACKGROUND

Bipolar Disorder (BD) is a highly comorbid condition, and rates of cooccurring disorders are even higher in youth. Comorbid disorders strongly affect clinical presentation, natural course, prognosis, and treatment.

METHODS

This review focuses on the clinical and treatment implications of the comorbidity between BD and Attention-Deficit/Hyperactivity Disorder, disruptive behavior disorders (Oppositional Defiant Disorder and/or Conduct Disorder), alcohol and substance use disorders, Autism Spectrum Disorder, anxiety disorders, Obsessive-Compulsive Disorder, and eating disorders.

RESULTS

These associations define specific conditions which are not simply a sum of different clinical pictures, but occur as distinct and complex combinations with specific developmental pathways over time and selective therapeutic requirements. Pharmacological treatments can improve these clinical pictures by addressing the comorbid conditions, though the same treatments may also worsen BD by inducing manic or depressive switches.

CONCLUSION

The timely identification of BD comorbidities may have relevant clinical implications in terms of symptomatology, course, treatment and outcome. Specific studies addressing the pharmacological management of BD and comorbidities are still scarce, and information is particularly lacking in children and adolescents; for this reason, the present review also included studies conducted on adult samples. Developmentally-sensitive controlled clinical trials are thus warranted to improve the prognosis of these highly complex patients, requiring timely and finely personalized therapies.

Bipolar disorder in the International Classification of Diseases-Eleventh version: A review of the changes, their basis, and usefulness

The World Health Organization’s 11^th revision of the International Classification of Diseases (ICD-11) including the chapter on mental disorders has come into effect this year. This review focuses on the “Bipolar or Related Disorders” section of the ICD-11 draft. It describes the benchmarks for the new version, particularly the foremost principle of clinical utility. The alterations made to the diagnosis of bipolar disorder (BD) are evaluated on their scientific basis and clinical utility. The change in the diagnostic requirements for manic and hypomanic episodes has been much debated. Whether the current criteria have achieved an optimum balance between sensitivity and specificity is still not clear. The ICD-11 definition of depressive episodes is substantially different, but the lack of empirical support for the changes has meant that the reliability and utility of bipolar depression are relatively low. Unlike the Diagnostic and Statistical Manual of Mental Disorders, 5^th edition (DSM-5), the ICD-11 has retained the category of mixed episodes. Although the concept of mixed episodes in the ICD-11 is not perfect, it appears to be more inclusive than the DSM-5 approach. Additionally, there are some uncertainties about the guidelines for the subtypes of BD and cyclothymic disorder. The initial results on the reliability and clinical utility of BD are promising, but the newly created diagnostic categories also appear to have some limitations. Although further improvement and research are needed, the focus should now be on facing the challenges of implementation, dissemination, and education and training in the use of these guidelines.

Objective assessment of motor activity in a clinical sample of adults with attention-deficit/hyperactivity disorder and/or cyclothymic temperament

BACKGROUND

Most research on patterns of motor activity has been conducted on adults with mood disorders, but few studies have investigated comorbid attention-deficit/hyperactivity disorder (ADHD) or temperamental factors that may influence the clinical course and symptoms. Cyclothymic temperament (CT) is particularly associated with functional impairment. Clinical features define both disorders, but objective, biological markers for these disorders could give important insights with regard to pathophysiology and classification.

METHODS

Seventy-six patients, requiring diagnostic evaluation of ADHD, mood or anxiety disorders were recruited. A comprehensive diagnostic evaluation, including the CT scale of the Temperament Evaluation of Memphis, Pisa, Paris and San Diego - Auto-questionnaire (TEMPS-A), neuropsychological tests and actigraphy, was performed. ADHD was diagnosed according to the DSM-IV criteria. There was a range of different conditions in this clinical sample, but here we report on the presence of CT and ADHD in relation to motor activity. Twenty-nine healthy controls were recruited. We analyzed motor activity time series using linear and nonlinear mathematical methods, with a special focus on active and inactive periods in the actigraphic recordings.

RESULTS

Forty patients fulfilled the criteria for ADHD, with the remainder receiving other psychiatric diagnoses (clinical controls). Forty-two patients fulfilled the criteria for CT. Twenty-two patients fulfilled the criteria for ADHD and CT, 18 patients met the criteria for ADHD without CT, and 15 patients had neither. The ratio duration of active/inactive periods was significantly lower in patients with CT than in patients without CT, in both the total sample, and in the ADHD subsample.

CONCLUSIONS

CT is associated with objectively assessed changes in motor activity, implying that the systems regulating motor behavior in these patients are different from both healthy controls and clinical controls without CT. Findings suggest that actigraphy may supplement clinical assessments of CT and ADHD, and may provide an objective marker for CT.

The assessment of cyclothymic-hypersensitive temperament in youth with mood disorders and attention deficit hyperactivity disorder

BACKGROUND

Cyclothymic-hypersensitive temperament (CHT) has been related to both depression and bipolarity, as well as to suicidality. Recently, a psychometrically sound way of assessment has been validated in youth (Cyclothymic-Hypersensitive Temperament Questionnaire, CHTQ), but data on clinical populations are still scant. Aim of our study is to further explore the structure and other psychometric properties of the revised version of CHTQ and its clinical implications in clinical samples.

METHODS

The study is based on a dataset of patients with unipolar depression, bipolar disorder and attention deficit and hyperactivity disorder (ADHD) (243 patients, 135 males, mean age 14.22 ± 2.16 years, age range 9-18 years), compared to a community sample of adolescents (398 subjects, 95 boys, mean age 15.47 ± 1.96 years, age range 10-18 years) RESULTS: The two-correlated factor structure of CHT has been confirmed, with a moodiness/hypersensitiveness factor, correlated with internalizing symptoms, and an impulsiveness/emotional dysregulation factor, correlated with externalizing symptoms. All CHTQ scores correlate with global functioning. CHTQ total scores discriminate patients from healthy controls. Only CHTQ impulsiveness/emotional dysregulation subscale score is higher in bipolar patients, compared to unipolar depression and ADHD, whereas neither CHTQ moodiness/hypersensitiveness subscale score nor CHTQ total score discriminate between clinical groups.

LIMITATION

Data on current mood states are unavailable. Patients were recruited in a third level clinic. The unipolar depression group is relatively small.

CONCLUSION

CHT may be a rapid and reliable screening and diagnostic tool in the clinical practice with youth, exploring the cyclothymic dimension in different psychiatric disorders.

Ludwig van Beethoven-a psychiatric perspective

Biographical accounts of famous artists usually try to relate the life story to the works (and vice versa). This gives the work a special "colour", often the context for understanding for today's recipients. This interrelation is complex and often judgmental, sometimes manipulative. Thus, medical (including psychiatric), characterological and psychodynamic assessments and interpretations must be made with great caution. Primary sources may be scanty and diagnostic concepts may have changed (Mozart died of hitzigem Frieselfieber [prickly heat fever]; in Hölderlin's lifetime, schizophrenia or bipolar disorder did not yet "exist"). The attempt at a diagnostic classification often says more about the author and his time than about the artist (for example, the assessment of Robert Schumann's or Friedrich Hölderlin's mental illness). Against this background, elements of Ludwig van Beethoven's biography are presented from a psychiatric perspective. In summary, Beethoven can be diagnosed with an alcohol use disorder. A pronounced hyperthymic temperament is likely to have had a clearly positive influence on the course of the disorder. In particular, no influence of the alcohol use disorder on the musical quality of the work can be proven. A clear episodic course of affective symptoms as in bipolar disorder is not demonstrable. The deafness caused a severe reduction in quality of life.

A novel multidimensional questionnaire for the assessment of emotional dysregulation in adolescents: Reactivity, Intensity, Polarity and Stability questionnaire-youth version (RIPoSt-Y)

BACKGROUND

The failure to regulate emotions, namely emotional dysregulation (ED), is a relevant construct in adolescent psychiatry, in terms of prognostic and developmental implications. We developed and validated a novel self-report questionnaire for the assessment of ED, the RIPoSt-Y, both in clinical and non-clinical samples.

METHODS

Items selection and subscales construction were conducted on healthy controls (n=374), while test-retest reliability was evaluated in a subsample (n=72); internal consistency was examined both in the control group and in two clinical samples, respectively including patients with Bipolar Spectrum Disorders (BSD; n=44) and ADHD (n=34). Construct, concurrent and convergent validity were also assessed.

RESULTS

Thirty-one items were finally retained, and three subscales were identified (Affective Instability, Emotional Reactivity, Interpersonal Sensitivity). Test-retest was significant for each subscale with moderate-to-good correlations, and internal consistency showed good-to-excellent coefficients. Construct validity was supported by significant differences between patients and controls and gender-related differences. Concurrent validity was confirmed through significant associations with two subscales of the CHT-Q, while convergent validity proved to be significant with the CBCL/YSR dysregulation-profile. Cut-offs were also computed to discriminate clinically significant scores of ED.

LIMITATIONS

The use of a school-based survey to recruit controls could have biased our results; gender distributions between clinical and non-clinical samples were significantly different.

CONCLUSIONS

Our novel questionnaire proved to be a valid and reliable tool able to assess the presence of ED in youths and to characterize this fundamental construct in its multidimensional facets.

Comparison of Emotional Dysregulation Features in Cyclothymia and Adult ADHD

Background and Objectives: Emotional dysregulation is central to the problem of the overlap between attention-deficit/hyperactivity disorder (ADHD) and cyclothymia. The aim of the study was to evaluate comorbidity rates between ADHD and cyclothymic disorder and to explore demographic and clinical differences among the groups, focusing on affective temperament and emotional dysregulation. Materials and Methods: One hundred sixty-five outpatients attending the Second Psychiatry Unit at the Santa Chiara University Hospital (Pisa) were consecutively recruited: 80 were diagnosed with ADHD, 60 with cyclothymic disorder, and 25 with both conditions. Temperament Evaluation of Memphis, Pisa, Paris, and San Diego (TEMPS-M) and the 40-item version of Reactivity, Intensity, Polarity, and Stability questionnaire (RI-PoSt-40) were administered. Results: Cyclothymic patients were more frequently female and older with respect to the ADHD groups. Both comorbid and non-comorbid ADHD patients showed significantly lower educational attainment and more frequently had substance use disorders. Panic disorder was common in non-comorbid cyclothymic patients, who showed significantly higher rates of familial panic disorder, major depressive disorder and suicide attempts in comparison with patients only diagnosed with ADHD. Cyclothymic patients without ADHD were also characterized by fewer hyperthymic temperamental traits, higher depressive and anxious dispositions, and a greater negative emotionality. No significant differences among groups were observed for cyclothymic temperament and overall negative emotional dysregulation, but comorbid patients with both conditions scored the highest in these subscales. This group also showed significantly higher affective instability with respect to ADHD patients without cyclothymia and was less frequently diagnosed with bipolar disorder type II than patients from both the other groups. Conclusions: ADHD and cyclothymia often co-occur and show similar levels of emotional dysregulation. However, cyclothymic patients may be more prone to negative emotionality in clinical settings. Subjects with “sunny” cyclothymic features might escape the attention of clinicians unless ADHD is present.

Presence and Overlap of Bipolar Symptoms and Borderline Features during Major Depressive Episodes

BACKGROUND

Bipolar symptoms and borderline personality features occur in both unipolar and bipolar major depressive episodes (MDEs). We investigated their prevalence, severity, co-occurrence and overlap.

METHODS

We interviewed 124 psychiatric outpatients with MDE using the Structured Clinical Interview for DSM-IV-TR Axis I and II Disorders, the Borderline Personality Disorder Severity Index (BPDSI-IV), and about past (hypo)manic episodes, and stratified them according to the principal diagnosis into subcohorts of major depressive disorder (MDD, n = 50), bipolar disorder (BD, n = 43), and borderline personality disorder (BPD, n = 31). We quantified (hypo)manic symptoms using a novel semi-structured interview (MIXed symptoms during MDE, MIX-MDE) with good psychometric qualities.

RESULTS

The subcohorts did not differ in MDE severity. They differed significantly in some (hypo)manic symptoms being present on most days in 24% of MDD, 30% of BD, and 42% of BPD subcohort, but only 5% of the BD subcohort fulfilled the DSM-5 mixed features. The mean MIX-MDE scores were 5.7 (SD 4.0), 12.0 (8.2) and 10.5 (7.5), and BPDSI-IV scores 15.6 (7.0), 17.2 (6.2) and 26.9 (8.7), respectively (both p < 0.001). (Hypo)manic days and unspecific symptoms of distractibility and irritability inflated the correlation of observed (hypo)manic symptoms and borderline features.

LIMITATIONS

Moderate sample size, limited age variation (18-50 years); no previous validation of MIX-MDE.

CONCLUSIONS

Presence of some mixed and borderline features is common in MDEs, with overlap and diagnosis-specific differences. Unspecific symptoms of irritability and distractibility and the aggravating impact of hypomania on perceived BPD features blur the differential diagnosis.

Mood disorders comorbidity in obese bariatric patients: the role of the emotional dysregulation

BACKGROUND

Obese patients seeking bariatric surgery are known to show high rates of mental disorders, mainly mood and eating disorders. The aim of the present study is to evaluate psychiatric comorbidities, affective temperamental dimensions, emotional dysregulation and impulsivity in a sample of obese bariatric patients, exploring the differences between obese patients with and without mood disorders (MD).

METHODS

A total of 69 obese patients were consecutively enrolled between March and November 2019 during the presurgical evaluation routinely performed before the bariatric intervention. Sociodemographic and clinical features were collected by psychiatrists during a single consultation. Affective temperaments, emotional dysregulation and impulsivity were also investigated through self-report questionnaires. Epidemiological and clinical variables were compared between patients with and without MD.

RESULTS

In our sample, almost 3 out of 4 patients presented a lifetime psychiatric disorder, mainly MD (n=33, 48%), binge eating disorder (BED) (n=34, 49%) and anxiety disorders (n=30, 43%). Compared to N-MD patients, those with MD showed higher rates of psychiatric comorbidity with BED, bulimia and panic disorder. In addition, obese patients with MD showed more frequently cyclothymic, depressive and anxious temperaments, and higher mean scores on the psychometric questionnaires assessing emotional dysregulation and impulsivity compared to obese subjects without MD.

LIMITATIONS

the small sample size, the retrospectively assessment of psychiatric disorders and the self-report questionnaires.

CONCLUSIONS

A subgroup of obese patients, especially among those with MD, show high emotional dysregulation, affective lability and impulsiveness that could represent suitable substrates for the development of compulsive and addictive eating habits.

Suicidal Risks in 12 DSM-5 Psychiatric Disorders

OBJECTIVE

As modern studies evaluating suicidal behaviors in large samples of major psychiatric disorder patients are rare, we compared suicidal risks associated with a variety of psychiatric diagnoses.

METHODS

We quantified rates of intake suicidal ideation and lifetime attempts, suicides, and violent acts (attempts + suicides) in 6050 adult patients in a European psychiatric center, diagnosed with 12 prevalent, DSM-5 psychiatric disorders.

RESULTS

Ideation ranged from 53.9% of subjects with bipolar disorder (BD) with mixed features, to 8.70% in anxiety disorders. Subjects making at least one suicide attempt were most prevalent in BD with mixed or psychotic features. Suicide rates ranked: substance abuse > BD with psychotic features > psychotic disorders ≥ BD-I > major depressive disorder (MDD). Suicidal intensity (acts/100 PEY) was highest with BD, psychotic disorders, and MDD; lethality (lower attempt/suicide ratio) was greatest with substance abuse, psychotic disorders, and BD with psychotic features. Rates of suicidal acts in BD vs. MDD were similarly high among ever-hospitalized subjects but much lower in never-hospitalized MDD subjects. Women had higher overall risks of ideation and attempts, but violent acts and suicide were more likely among men, whereas SMR for suicide was greater among women, presumably reflecting very low risks among women in the regional general population.

CONCLUSIONS

Suicidal risks were particularly high in BD with psychotic or mixed features as well as with substance abuse and in severe MDD with hospitalization.

Cyclothymic-hypersensitive temperament in youths: Refining the structure, the way of assessment and the clinical significance in the youth population

BACKGROUND

Although a better understanding of the prodromes of affective disorders in youth has important clinical and research implications, empirical data are still unconclusive. Cyclothymic-hypersensitive temperament (CHT) has been linked to both depression and bipolarity, as well as to suicidality. Its conceptualization is still debated, as well as a comprehensive, psychometrically sound way of assessment.

METHODS

factor structure, reliability, measurement invariance, convergent and divergent validity of the previously published CHT questionnaire (a youth version derived from Temperament Evaluation in Memphis Pisa and San Diego (TEMPS) was assessed in a school-based sample of 2959 students aged from 10 to 14 years (mean age = 11.8 ± 0.97 years). Furthermore, accuracy, sensitivity and specificity were calculated for a new cut-off score related to the presence of general psychopathology symptoms.

RESULTS

CHT is better conceptualized in a two-correlated factors model, a moodiness/hypersensitiveness factor, more associated with internalizing symptoms, and an impulsiveness/emotional dysregulation factor, more associated with externalizing symptoms. The revised 22-items version of the CHT questionnaire with a cut-off score of 15 for females and 17 for males results accurate, sensitive and specific enough for the recognition of cyclothymic adolescents with clinical symptoms.

LIMITATION

the cross sectional design and the self-report nature of the measures limit the findings.

DISCUSSION

Cyclothymic-hypersensitive temperament is a relevant concept in the realm of affective disorder and can be reliably assessed in youths. It may describe youths with the coexistence of both internalizing and externalizing symptoms that can be difficult to diagnose with a DSM perspective.

Psychological therapy for mood instability within bipolar spectrum disorder: a single-arm feasibility study of a dialectical behaviour therapy-informed approach

Background

We sought to evaluate the acceptability of a psychological therapy programme (Therapy for Inter-episode Mood Variability in Bipolar Disorder (ThrIVe-B)) for individuals with ongoing bipolar mood instability and the feasibility and acceptability of potential trial procedures. We also evaluated the performance of clinical and process outcome measures and the extent to which the programme potentially represents a safe and effective intervention.

Method

We conducted an open (uncontrolled) trial in which 12 individuals with a bipolar spectrum diagnosis commenced the ThrIVe-B programme after completing baseline assessments. The programme comprised 16 group skills training sessions plus individual sessions and a supporting smartphone application. Follow-up assessments were at therapy end-point and 6 months post-treatment.

Results

Nine participants completed treatment. Ten provided end-of-treatment data; of these, nine were satisfied with treatment. Interviews with participants and clinicians indicated that the treatment was broadly feasible and acceptable, with suggestions for improvements to content, delivery and study procedures. Exploration of change in symptoms was consistent with the potential for the intervention to represent a safe and effective intervention.

Conclusions

Conducting further evaluation of this approach in similar settings is likely to be feasible, whilst patient reports and the pattern of clinical change observed suggest this approach holds promise for this patient group. Future research should include more than one study site and a comparison arm to address additional uncertainties prior to a definitive trial.

Trial registration

Trial Registration: ClinicalTrials.gov NCT02637401; registered 22.12.15 (retrospectively registered).

Cyclothymic temperament: Associations with ADHD, other psychopathology, and medical morbidity in the general population

BACKGROUND

Cyclothymic temperament (CT) is an affective disposition often preceding bipolar disorder (BD), and is the most common affective temperament in patients with BD. In depressed patients, CT is a predictor for developing a bipolar course. In a clinical sample of adults with BD and attention deficit hyperactivity disorder (ADHD), CT was associated with higher loads of psychiatric symptoms, somatic comorbidity, impairment, and higher morbidity among first-degree relatives. We aimed to investigate the morbidity and occupational functioning of persons with CT in the general population.

METHODS

Randomly recruited Norwegian adults (n = 721) were assessed with a 21-item cyclothymic subscale from the TEMPS Autoquestionnaire. Self-reported data were collected on psychiatric symptoms, comorbidity, educational and occupational level, and known family morbidity.

RESULTS

Thirteen percent had CT associated with an increased prevalence of ADHD, BD, high scores on the Mood Disorder Questionnaire (MDQ), and childhood and adulthood ADHD symptoms. CT was found in 75% (p < .001) of the bipolar participants, and in 68% (p < .001) of those with a positive MDQ score. CT was associated with more anxiety/depression, substance and alcohol problems, lower educational and occupational levels, and having a first-degree relative with anxiety/depression, alcohol problems, ADHD, and BD.

LIMITATIONS

The CT subscale alone might include overlapping features with cyclothymic, anxious, irritable, and depressed temperaments, thus increasing the prevalence estimate of CT.

CONCLUSIONS

CT is a strong predictor of occupational failure and associated with more psychiatric impairment in the participants and their families. CT should be assessed in both mood disorder and ADHD patients.

Validation of the brief TEMPS-M temperament questionnaire in a clinical Italian sample of bipolar and cyclothymic patients

BACKGROUND

To assess psychometric proprieties of the short version of TEMPS-M in an Italian clinical sample of patients with bipolar disorder type I (BDI), type II (BDI) or cyclothymic disorder (CYC).

METHODS

All participants were recruited in two Italian university sites. They were asked to complete the Italian version of the short TEMPS-M, consisting of 35 items on a five-point Likert scale ranging from 1 to 5. The factorial structure of the instrument was assessed by principal components analysis with varimax rotation. The reliability of the subscales was assessed with Cronbach's alpha.

RESULTS

The 815 recruited patients had a diagnosis of BDI (430), CYC (227) or BDII (158); 60% of them were female and with a mean age of 44.4 (±14.6) years. Cronbach's alpha coefficients of subscales ranged from 0.808 to 0.898. The factor analysis confirmed five dimensions (depressive, cyclothymic, hyperthymic, irritable, anxious), as in the English version of the scale. All temperaments were more represented in CYC than in BDI patients. Depressive and anxious temperaments were more represented in BDII than in BDI; the hyperthymic temperament was represented more in BDI than in BDII patients.

LIMITATIONS

No other assessment instrument was used as a reference to assess the external or predictive validity of TEMPS-M; several socio-demographic and clinical characteristics have not been assessed.

CONCLUSION

The Italian version of the short TEMPS-M shows good reliability and validity. It might be used in clinical and research settings, for the dimensional exploration of the investigated domains.

Predictors of Functional Outcome in Patients With Bipolar Disorder: Effects of Cognitive Psychoeducational Group Therapy After 12 Months

Background: Cognitive deficits are known as a core feature in bipolar disorder. Persisting neurocognitive impairment is associated with low psychosocial functioning. The aim of this study was to identify potential cognitive, clinical and treatment-dependent predictors for functional impairment, symptom severity and early recurrence in bipolar patients, as well as to analyze neurocognitive performance compared to healthy controls. Methods: Forty three remitted bipolar patients and 40 healthy controls were assessed with a neurocognitive battery testing specifically attention, memory, verbal fluency and executive functions. In a randomized controlled trial, remitted patients were assigned to two treatment conditions as add-on to state-of-the-art pharmacotherapy: cognitive psychoeducational group therapy over 14 weeks or treatment-as-usual. At 12 months after therapy, functional impairment and severity of symptoms were assessed. Results: Compared to healthy controls, bipolar patients showed lower performance in executive function (perseverative errors p < 0.01, categories correct p < 0.001), sustained attention (total hits p < 0.001), verbal learning (delayed recall p < 0.001) and verbal fluency (p-words p < 0.002). Cognitive psychoeducational group therapy and attention predicted occupational functioning with a hit ratio of 87.5%. Verbal memory recall was found to be a predictor for symptom severity (hit ratio 86.8%). Recurrence in the follow-up period was predicted by premorbid IQ and by years of education (hit ratio 77.8%). Limitations: Limitations of the present study result mainly from a small sample size. The extent of cognitive impairment appears to impact occupational disability, clinical outcome as well as recurrence rate. This result must be interpreted with caution because statistical analysis failed to show higher significance. Conclusions: Bipolar patients benefit from cognitive psychoeducational group therapy in the domain of occupational life. Deficits in sustained attention have an impact on occupational impairment. Implications for treatment strategies are discussed. Further evaluation in larger studies is needed.

Reactivity, Intensity, Polarity and Stability questionnaire (RIPoSt-40) assessing emotional dysregulation: Development, reliability and validity

BACKGROUND

Emotional dysregulation (ED) is a heterogenous construct with great relevance in psychiatric research and clinical practice. In the present study, we validated a 40-items version of the Reactivity, Intensity, Polarity and Stability questionnaire (RIPoSt-40), a self-report measure of ED.

METHODS

A non-clinical sample (N = 396) and two clinical samples of patients with cyclothymia (N = 120) and ADHD (N = 54) were recruited. Items were selected and subscales were derived based on inter-item correlations and PCA with promax rotation in the non-clinical sample. Test-retest reliability was assessed in a subsample (N = 60). Internal consistency and concurrent validity with TEMPS-M factors were evaluated in each sample. The three groups results were compared to ascertain discriminant validity.

RESULTS

Four subscales were identified as measures of affective instability, emotional impulsivity, negative and positive emotionality. The first three subscales also sum up to a negative ED score comprising thirty items. Measures of reliability (test-retest r = 0.71-0.84) and internal consistency (Cronbach's α = 0.72-0.95) were generally high. Concurrent validity was supported by correlations with TEMPS-M factors. Discriminant validity was significant (p < 0.001) with cyclothymic and ADHD patients showing higher scores for each subscale, except for positive emotionality.

LIMITATIONS

The non-clinical sample was recruited through a web-survey and mainly included young and highly educated subjects. Mood and anxiety comorbidity of the clinical samples were not taken into consideration.

CONCLUSION

RIPoSt-40 questionnaire has proved to be a valid, reliable and useful tool to assess ED both in clinical and non-clinical contexts.

Amygdala Resting State Connectivity Differences between Bipolar II and Borderline Personality Disorders

BACKGROUND

Borderline personality disorder (BPD) and bipolar II disorder (BD II) have significant clinical overlap, leaving the potential for diagnostic inaccuracies and inadequate treatment recommendations. However, few studies have probed for clinical and neurobiological differences between the two disorders. Clinically, some prior studies have linked BPD with greater impulsivity and more frequent negative affective shifts than BD II, whereas previous neuroimaging studies have highlighted both similar and distinct neural abnormalities in BPD and BD II. Notably, no prior study has specifically targeted cortico-limbic neural differences, which have been hypothesized to underlie these core clinical differences.

METHODS

Individuals with BPD (n = 14) and BD II (n = 15) completed various clinical measures and a resting state functional imaging scan at 3T. Whole-brain amygdala resting state functional connectivity (RSFC) was compared between the two groups.

RESULTS

Relative to the BD II group, BPD participants reported significantly higher levels of impulsivity, trait anxiety, more frequent negative affective shifts, greater interpersonally reactive affective instability, lower overall functioning, and were characterized by lower amygdala-middle frontal gyrus RSFC. Lower amygdala-middle frontal gyrus RSFC was associated with greater impulsivity, trait anxiety, affective shifts, interpersonal affective reactivity, and functional impairment.

LIMITATIONS

The current study consisted of small sample sizes and lacked a control group.

CONCLUSIONS

This preliminary study suggests that amygdala-frontal RSFC may distinguish BPD from BD II. These results may guide future work aimed at identifying neural markers that can help disentangle these two disorders, leading to greater diagnostic accuracy and appropriate treatment implementation.

Affective Temperaments and Clinical Course of Bipolar Disorder: An Exploratory Study of Differences among Patients with and without a History of Violent Suicide Attempts

Background and Objectives: Suicide is the leading cause of death in patients with Bipolar Disorder (BD). In particular, the high mortality rate is due to violent suicide attempts. Several risk factors associated with suicide attempts in patients with BD have been identified. Affective temperaments are associated with suicidal risk, but their predictive role is still understudied. The aim of this study is to assess the relationship between affective temperaments and personal history of violent suicide attempts. Materials and Methods: 74 patients with Bipolar Disorder type I (BD-I) or II (BD-II) were included. All patients filled in the short version of Munster Temperament Evaluation of the Memphis, Pisa, Paris and San Diego (short TEMPS-M) and the Temperament and Character Inventory, revised version (TCI-R). The sample was divided into two groups on the basis of a positive history for suicidal attempts and the suicidal group was further divided into two subgroups according to violent suicide attempts. Results: Violent suicide attempts were positively associated with the cyclothymic temperament and inversely to the hyperthymic one. BD-I patients and patients with a clinical history of rapid cycling were significantly more represented in the group of patients with a history of violent suicide attempts. Conclusions: Our study highlights that several clinical and temperamental characteristics are associated with violent suicide attempts, suggesting the importance of affective temperaments in the clinical management of patients with BPI.

The relationship between attention deficit hyperactivity disorder, bipolarity and mixed features in major depressive patients: Evidence from the BRIDGE-II-Mix Study

OBJECTIVE

This study primarily focused on the relationship between comorbid attention deficit-hyperactivity disorder (ADHD), mixed features and bipolarity in major depressive patients.

METHODS

The sample comprised 2777 patients with Major Depressive Episode (MDE) enrolled in a multicentre, multinational study originally designed to assess different definitions of mixed depression. Socio-demographic, familial and clinical characteristics were compared in patients with (ADHD + ) and without (ADHD-) comorbid ADHD.

RESULTS

Sixty-one patients (2.2%) met criteria for ADHD. ADHD was associated with a higher number of (hypo)manic symptoms during depression. Mixed depression was more represented in ADHD + patients than in ADHD- using both DSM-5 and experimental criteria. Differences were maintained after removing overlapping symptoms between (hypo)mania and ADHD. ADHD in MDE was also associated with a variety of clinical and course features such as onset before the age of 20, first-degree family history of (hypo)mania, past history of antidepressant-induced (hypo)manic switches, higher number of depressive and affective episodes, atypical depressive features, higher rates of bipolarity specifier, psychiatric comorbidities with eating, anxiety and borderline personality disorders.

LIMITATIONS

The study was primarily designed to address mixed features in ADHD, with slightly reduced sensitivity to the diagnosis of ADHD. Other possible diagnostic biases due to heterogeneity of participating clinicians.

CONCLUSIONS

In a sample of major depressive patients, the comorbid diagnosis of current ADHD is associated with bipolar diathesis, mixed features, multiple psychiatric comorbidity and a more unstable course. Further prospective studies are necessary to confirm the possible mediating role of temperamental mood instability and emotional dysregulation in such a complex clinical presentation.

The clinical and cost effectiveness of adapted dialectical behaviour therapy (DBT) for bipolar mood instability in primary care (ThrIVe-B programme): a feasibility study

Background

In bipolar spectrum disorder, some individuals experience ongoing, frequent fluctuations in mood outside of affective episodes. There are currently no evidence-based psychological interventions designed to address this. This feasibility study is a phase II evaluation of a dialectical behavioural therapy-informed approach (Therapy for Inter-episode mood Variability in Bipolar [ThrIVe-B]). It seeks to examine the feasibility and acceptability of a future definitive trial evaluating the clinical and cost effectiveness of the ThrIVe-B programme.

Methods/design

Patients will be randomised 1:1 to either treatment as usual only (control arm) or the ThrIVe-B intervention plus treatment as usual (intervention arm). Follow-up points will be at 3, 6, 9 and 15 months after baseline, with 9 months as the primary end point for the candidate primary outcome measures. We aim to recruit 48 individuals meeting diagnostic criteria for a bipolar spectrum disorder and reporting frequent mood swings outside of acute episodes, through primary and secondary care services and self-referral. To evaluate feasibility and acceptability, we will examine recruitment and retention rates, completion rates for study measures and feedback from participants on their experience of study participation and therapy.

Discussion

Proceeding to a definitive trial will be indicated if the following criteria are met: (1) trial participation does not lead to serious negative consequences for our participants; (2) any serious concerns about the acceptability and feasibility of the trial procedures can be rectified prior to a definitive trial; (3) follow-up data at 9 months are available for at least 60% of participants; (4) at least 60% of patients in the ThrIVe-B arm complete treatment.

Trial registration

ISRCTN, ISRCTN54234300. Registered on 20 July 2017.

Electronic supplementary material

The online version of this article (10.1186/s13063-018-2926-7) contains supplementary material, which is available to authorized users.

Parsing cyclothymic disorder and other specified bipolar spectrum disorders in youth

OBJECTIVE

Most studies of pediatric bipolar disorder (BP) combine youth who have manic symptoms, but do not meet criteria for BP I/II, into one "not otherwise specified" (NOS) group. Consequently, little is known about how youth with cyclothymic disorder (CycD) differ from youth with BP NOS. The objective of this study was to determine whether youth with a research diagnosis of CycD (RDCyc) differ from youth with operationalized BP NOS.

METHOD

Participants from the Course and Outcome of Bipolar Youth study were evaluated to determine whether they met RDCyc criteria. Characteristics of RDCyc youth and BP NOS youth were compared at baseline, and over eight-years follow-up.

RESULTS

Of 154 youth (average age 11.96 (3.3), 42% female), 29 met RDCyc criteria. RDCyc youth were younger (p = .04) at baseline. Over follow-up, RDCyc youth were more likely to have a disruptive behavior disorder (p = .01), and were more likely to experience irritability (p = .03), mood reactivity (p = .02), and rejection sensitivity (p = .03). BP NOS youth were more likely to develop hypomania (p = .02), or depression (p = .02), and tended to have mood episodes earlier in the eight-year follow-up period.

LIMITATIONS

RDCyc diagnoses were made retrospectively and followed stringent criteria, which may highlight differences that, under typical clinical conditions and more vague criteria, would not be evident.

CONCLUSION

There were few differences between RDCyc and BP NOS youth. However, the ways in which the groups diverged could have implications; chronic subsyndromal mood symptoms may portend a severe, but ultimately non-bipolar, course. Longer follow-up is necessary to determine the trajectory and outcomes of CycD symptoms.

Non suicidal self-injury in referred adolescents with mood disorders and its association with cyclothymic-hypersensitive temperament

BACKGROUND

Non suicidal self-injuries (NSSIs) are deliberate self-harm behaviors without suicidal intent, usually starting in adolescence, with increasing rates of occurrence both in epidemiological and clinical samples. Several studies associated cyclothymic-hypersensitive temperament (CHT) with self-harm behaviors and suicidal risk. Aim of this study is to explore the association between NSSIs and CHT in a clinical sample of adolescents. We hypothesized that CHT may differentiate NSSI from non-NSSI adolescents with mood disorders, when other psychopathological features are controlled for.

METHODS

A consecutive sample of 89 adolescents with mood disorders were assessed for presence and phenomenology of NSSIs, CHT, demographics, comorbid categorical psychiatric diagnoses, dimensional psychopathology, impairment and previous suicide attempts.

RESULTS

NSSIs were reported in 52% of the sample, with higher rates in females and in bipolar disorder. Regression analyses showed that CHT, but not age, gender, bipolar vs depression diagnosis, functional impairment, was associated with NSSIs.

DISCUSSION

CHT may be in close association with NSSIs in adolescents with mood disorders. An assessment of CHT in adolescents referred for mood disorder may help to detect specific psychological features of NSSIs, which may improve diagnostic and treatment strategies.

LIMITATIONS

Given the cross-sectional design, a developmental relation between CHT and NSSIs cannot be determined. The small sample size and the selection bias of severely impaired patients limit the generalization of the results. More sophisticated measures of CHT may consent to explore other dimensions of the cyclothymic construct (i.e., emotional intensity, emotional reactivity, emotional stability, positive vs. negative emotions, interpersonal sensitivity, impulsivity).

Alcohol use and bipolar disorders: Risk factors associated with their co-occurrence and sequence of onsets

BACKGROUND

Little is known about the sequence of onsets in patients affected by comorbid alcohol use and bipolar disorder. This study examines the risk factors associated with their co-occurrence and order of onset.

METHOD

The demographic, clinical, and temperament characteristics as well as the course of illness were analyzed within our sample of 1090 DSM-IV bipolar I manic patients. Our sample was categorized according to the presence of comorbid alcohol use disorder and the sequence of onsets of bipolar and alcohol use disorders i.e., alcohol first (AUD-BD) and bipolar first (BD-AUD).

RESULTS

Regression analyses revealed that alcohol use disorder (52.5%) was associated with the male gender, additional substance use disorders, as well as an irritable and a hyperthymic temperament. The AUD-BD group (6.6%) was older than the BD-AUD group (45.8%) and showed higher rates of comorbid sedative use, organic, and anxiety disorders with higher levels of irritable temperament, and a bipolar subtype characterized by depressive polarity at onset. The BD-AUD group had high levels of hyperthymic temperament with higher rates of comorbid stimulant use disorder and a manic polarity at onset.

CONCLUSIONS

In the AUD-BD group, alcohol might have been used to reduce stress and tension caused by the presence of an irritable temperament as well as anxious and organic disorders, leading to first depressive episode. In the BD-AUD group, stimulant use might have triggered the first manic episode, and alcohol abuse result from mania severity.

Clinical stabilisation with lacosamide of mood disorder comorbid with PTSD and fronto-temporal epilepsy

Background and aim of the work:

Mood disorders are often complicated by comorbidity with epilepsy. Anxiety and personality disorders may worsen prognosis and treatment outcome. Lacosamide has been recently introduced as adjunctive treatment for partial epilepsy. Its mechanism consists of selective slow inactivation of voltage-gated sodium channels, thus promoting an extended stabilisation of cell membranes. Antiepileptic drugs have been largely used since the 1950s in psychiatry as mood stabilisers due to their membrane stabilising and anti-kindling effects. Like lithium, antiepileptic drugs are first choice treatment for Bipolar and Cyclothymic Disorders.

Methods:

We tested the efficacy of the most recent antiepileptic medication, lacosamide, in a patient with simultaneously occurring cyclothymic disorder, severe post-traumatic stress disorder, and fronto-temporal epilepsy. Lacosamide was titrated up to 200 mg/day, added to ongoing 750 mg/day lithium, 15 mg/day oral aripiprazole then switched to 400 mg/month long-acting aripiprazole, and 2 mg/day A-desmethyldiazepam.

Results:

We observed EEG normalisation one month later, along with reduced anxiety and an additive effect to lithium-induced stabilisation of mood fluctuations since the second week of lacosamide addition.

Conclusions:

Further studies with this drug in the bipolar spectrum are warranted. (www.actabiomedica.it)

An exploratory study of the heterogeneity of the jealousy phenomenon and its associations with affective temperaments and psychopathological dimensions in a large Brazilian sample

BACKGROUND

Jealousy is a heterogenous emotion on a spectrum from normality to psychopathology. The relationship between different jealousy subtypes/dimensions and affective temperaments remain unknown. In addition, few large surveys have investigated the associations between jealousy subtypes and psychopathological dimensions.

METHODS

A Brazilian Portuguese version of the "Questionario della Gelosia" (QUEGE) was developed. We obtained data from an anonymous web-based research platform. Socio-demographic data was obtained and participants answered the QUEGE, the TEMPS-Rio de Janeiro, and the Symptom Checklist-90-Revised (SCL-90-R).

RESULTS

2042 participants (29% men, 71% female, mean age+SD: 28.9±8.8 years), took part in this survey. Confirmatory factor analysis provided a five-factor model for the QUEGE with self-esteem, paranoia, interpersonal sensitivity, fear of being abandoned, and obsessive dimensions. The anxious, irritable, cyclothymic, and depressive temperaments were independently associated with jealousy dimensions, whereas the hyperthymic temperament was associated with lower scores on the self-esteem jealousy dimension (N=2042, P<0.001). Jealousy subtypes were dissimilarly associated with SCL-90R psychopathological dimensions, whereas the 'obsessive' jealousy dimension was not significantly associated with SCL-90R dimension scores. We found no independent influence of gender across any jealousy dimension.

LIMITATIONS

A convenience web-based sample was employed. Cross-sectional design precludes the establishment of causal inferences.

CONCLUSIONS

Our data indicate that a five-factor solution may provide the best-fit model for the QUEGE. Different jealousy subtypes were independently associated with affective temperaments and psychopathological dimensions. These associations reported herein should be confirmed in prospective studies.

Affective temperaments and emotional traits are associated with a positive screening for premenstrual dysphoric disorder

OBJECTIVES

Preliminary evidence indicates that premenstrual dysphoric disorder (PMDD) may be frequently co-morbid with bipolar spectrum disorders. In addition, the manifestations of PMDD seem similar to a subthreshold depressive mixed state. Nevertheless, the associations between PMDD and affective temperaments and emotional traits have not been previously investigated.

METHODS

A consecutive sample of 514 drug-free Brazilian women (mean age: 22.8; SD=5.4years) took part in this cross-sectional study. Screening for PMDD was obtained with the validated Brazilian Portuguese version of the Premenstrual Symptoms Screening Tool (PSST). Affective temperaments and emotional dimensions were evaluated with the Affective and Emotional Composite Temperament Scale (AFECTS). In addition, socio-demographic and data on menstrual cycle were collected.

RESULTS

According to the PSST, 83 (16.1%) women screened positive for PMDD, while 216 (42.0%) women had no/mild premenstrual symptoms. The cyclothymic temperament was independently associated with PMDD (OR=4.57; 95% CI: 2.11-9.90), while the euthymic temperament had an independent association with a lower likelihood of a positive screening for PMDD (OR=0.28; 95% CI: 0.12-0.64). In addition, anger and sensitivity emerged as emotional dimensions significantly associated with PMDD.

CONCLUSIONS

A positive screening for PMDD was associated with a predominant cyclothymic temperament, while an euthymic temperament was associated with a lower likelihood for a positive screening for PMDD. These data deserve replication in prospective studies.

Comparative analysis of affective temperament in patients with difficult-to-treat and easy-to-treat major depression and bipolar disorder: Possible application in clinical settings

BACKGROUND

Difficult-to-treat major depressive disorder (MDD-DT), which involves antidepressant refractoriness or antidepressant-related adverse psychiatric effects, is bipolar in nature; therefore, it may share common temperamental features with bipolar disorder. To examine this hypothesis, affective temperament was compared between MDD-DT, easy-to-treat major depressive disorder (MDD-ET), and bipolar disorder.

METHODS

Affective temperament was measured in 320 patients (69, 56, and 195 with MDD-ET, MDD-DT, and bipolar disorder, respectively) using the self-rated questionnaire version of the Temperament Evaluation of Memphis, Pisa, Paris, and San Diego (TEMPS-A), with between-group differences examined using multiple logistic regression analysis controlling for confounders. Optimal cut-off points for TEMPS-A scores to discriminate between diagnostic groups were determined using receiver-operating characteristic analysis.

RESULTS

Of the five temperamental domains, the mode for cyclothymic temperament score was highest, followed by those of bipolar disorder, MDD-DT, and MDD-ET. The cyclothymic temperament score discriminated significantly between bipolar disorder and MDD-DT (odds ratio [OR]: 1.12, 95% confidence interval [CI]: 1.04-1.20, p=0.0022), MDD-DT and MDD-ET (OR: 1.15, 95% CI: 1.01-1.31, p=0.0334), and bipolar and major depressive disorders (OR: 1.17, 95% CI: 1.07-1.28, p=0.0003). Optimal cut-off points for the cyclothymic temperament scores to discriminate between bipolar disorder and major depressive disorder and MDD-DT and MDD-ET were 9 (sensitivity: 64.6%, specificity: 76.0%) and 6 (66.1%, 62.3%), respectively.

CONCLUSIONS

MDD-DT has a quantitatively stronger bipolar temperamental feature, cyclothymic temperament, relative to that of MDD-ET. Cut-off points determined in this study could be clinically helpful. Because of our study design, longitudinal changes in temperamental scores during treatment cannot be fully excluded.