Clinical Characteristics Of Bipolar Disorder Research Articles

Prevalence of insulin resistance and its associated factors in drug-naïve patients with bipolar disorder among Han Chinese population

BackgroundMetabolic syndrome (Mets) is commonly seen in bipolar disorder (BD). As the key component and early biological index of Mets, insulin resistance (IR) among BD has received more and more attention. However, little is known about the prevalence of IR and its associated factors in drug-naïve patients with (BD), especially among Han Chinese population.MethodsA cross-sectional study was conducted on 125 drug-naïve patients with bipolar disorder (BD) and 85 healthy controls (HC). The Homeostatic Model Assessment of insulin resistance (HOMA-IR) was calculated, and IR was defined as HOMA-IR greater than the 75th percentile value for health controls (2.35). Clinical characteristics of BD were collected through semi-structural interview performed by a trained interviewer with background of psychiatric education.ResultsAmong the measured anthropocentric variables including BMI, waist circumference, abdomen circumference, hipline, and hip-waist ratio, waist circumference was found to be the most closely related to IR (0R = 1.070, 95%CI = 1.031–1.110, P < 0.001). Male was another factor that was associated with IR (OR = 2.281, 95%CI = 1.107–4.702, P = 0.025). After adjusted for gender and waist circumference, the risk of IR was significantly higher in bipolar disorder than in healthy controls (OR = 2.66, 95%CI = 1.364–5.214, P = 0.004). No significant association was found between IR and any of the observed physical and mental comorbidities, any characteristic of illness course including age onset, number of mixed episodes, types of current state, duration of current episode, duration of illness course, rapid cycling, number of mood episodes, and subgroup of BD. Hypersomnia was the only symptomatic feature that was significantly associated with IR (OR = 0.316, 95%CI = 0.124–0.803, P = 0.016).ConclusionsBipolar disorder increases two-to-three-fold risk of IR, both circumference and male are the risk factors of IR but hypersomnia act as a protective factor.

The impact of comorbid premenstrual syndrome or premenstrual dysphoric disorder on the clinical characteristics of bipolar disorder among Han Chinese women.

Bipolar disorder (BD) is commonly comorbid with premenstrual syndrome (PMS) or premenstrual dysphoric disorder (PMDD). However, little is known about their relationship. This study aimed to assess the impact of comorbid PMS or PMDD on the clinical characteristics of BD. A cross-sectional study was conducted on 262 women with BD. PMS and PMDD were screened with the Premenstrual Symptoms Screening Tool (PSST). Symptomatic features were assessed with Hamilton Depression Scale (HAMD), Young Mania Rating Scale (YMRS), and atypical features by the depressive episode section of SCID-I/P. The rates of PMS and PMDD among BD were 57.6% and 20.6% according to PSST. No significant difference in the rates of PMS and PMDD was found between BD I, BD II, and BD-NOS. Compared to BD patients without PMS or PMDD, patients with comorbid BD and PMS or PMDD were younger, more educated, had a higher risk of OCD, had an earlier age of onset, scored higher on HAMD-17 and its sub-scale of anxiety/somatization, cognitive deficit, psychomotor retardation, and were more likely to have increased appetite and leaden paralysis. In addition, patients with comorbid BD and PMDD were less likely to experience traumatic life events, more likely to have family history of mental disorders and have inflammatory or autoimmune disease, scored higher on HMAD-17, particularly in its sub-scale of anxiety/somatization, cognitive deficit, psychomotor retardation, and sleep disturbance. Compared with BD without PMS or PMDD, BD with PMS or PMDD might be a specific subtype of BD characterized with earlier onset age, heavier genetic load, increased symptom severity, and atypical features.

A preliminary investigation of the clinical and cognitive correlates of circulating vitamin D in bipolar disorder

The role that vitamin D plays in the cognitive and clinical characteristics of bipolar disorder (BD) is unclear. We examined differences in the levels and deficiency status of vitamin D in an Australian sample of BD patients compared to healthy controls; and determined the extent to which vitamin D is associated with clinical variables and cognitive function in the sample. 22 healthy controls and 55 stable outpatients with a diagnosis of BD and low-grade mood symptomatology provided a sample of blood and completed cognitive tests and clinical measures. Plasma concentrations of 25-hydroxyvitamin D (vitamin D) were assayed and used to segregate participants into subgroups with sufficient or deficient levels of vitamin D. Subgroups were then compared in terms of global cognition and a range of sociodemographic and clinical factors (number of past mood episodes, illness duration, seasonal mood pattern, mood symptom severity), while mean levels of vitamin D were compared between patients and controls. Although almost 27% of the current sample were vitamin D deficient, no significant differences in mean vitamin D levels or the prevalence of vitamin D deficiency were evident between BD patients and controls. Vitamin D was not associated with global cognition in either patients or controls, nor any of the clinical measures assessed in the study.In conclusion, we observed no difference in the vitamin D levels and deficiency status of an Australian sample of healthy individuals and BD patients with low grade mood symptomatology compared to controls. Clinical symptoms and global cognition also appear to be independent of vitamin D levels in BD.

A cross-sectional study of cognitive performance in bipolar disorder across the lifespan: the cog-BD project.

Neuroprogressive models of the trajectory of cognitive dysfunction in patients with bipolar disorder (BD) have been proposed. However, few studies have explored the relationships among clinical characteristics of BD, cognitive dysfunction, and aging. We conducted a cross-sectional analysis in euthymic participants with the MATRICS Cognitive Consensus Battery, the Trail Making Test B, the Stroop Test, and the Wechsler Test of Adult Reading. Age- and gender-equated control participants without a mental disorder ['Healthy Controls' - HC)] were assessed similarly. We compared cognitive performance both globally and in seven domains in four groups: younger BD (age ⩽49 years; n = 70), older BD (age ⩾50 years; n = 48), younger HC (n = 153), and older HC (n = 44). We also compared the BD and HC groups using age as a continuous measure. We controlled for relevant covariates and applied a Bonferroni correction. Our results support both an early impairment ('early hit') model and an accelerated aging model: impairment in attention/vigilance, processing speed, and executive function/working memory were congruent with the accelerated aging hypothesis whereas impairment in verbal memory was congruent with an early impairment model. BD and HC participants exhibited similar age-related decline in reasoning/problem solving and visuospatial memory. There were no age- or diagnosis-related differences in social cognition. Our findings support that different cognitive domains are affected differently by BD and aging. Longitudinal studies are needed to explore trajectories of cognitive performance in BD across the lifespan.

Exploring Clinical Correlates of Metacognition in Bipolar Disorders Using Moderation Analyses: The Role of Antipsychotics.

The determinants of metacognition are still poorly understood in bipolar disorders (BD). We aimed to examine the clinical determinants of metacognition, defined as the agreement between objective and subjective cognition in individuals with BD. The participants consisted of 281 patients with BD who underwent an extensive neuropsychological battery and clinical evaluation. To assess subjective cognition, participants provided a general rating of their estimated cognitive difficulties. Clinical characteristics of BD were also recorded, along with medication. We studied the potential moderation of the association between cognitive complaints and global objective cognitive performance by several clinical variables with ordinal logistic regressions. Depression and impulsivity were associated with greater cognitive complaints. The only variable that moderated the relationship between objective and subjective cognition in the global model was the prescription of antipsychotics. Patients taking antipsychotics had a poorer association between cognitive complaints and objective neuropsychological performance. This result suggests a role for dopamine in the modulation of metacognitive performance, and calls for the systematic control of antipsychotic medication in future studies documenting metacognitive deficits in severe and persistent mental disorders. Depression and impulsivity should be investigated as potential therapeutic targets for individuals with BD and cognitive complaints, before proposing an extensive neuropsychological evaluation.

Insight and self-esteem in patients with bipolar disorders

IntroductionThe recurrence of bipolar disorder due to poor treatment adherence can be explained by different factors.The poor awareness of the disorder seems to be the major cause.ObjectivesTo evaluate insight in patients followed for euthymic bipolar disorders and determine the factors correlated with it,mainly the self-esteem.MethodsA cross-sectional descriptive and analytical study of 33 euthymic subjects with bipolar I and II disorders (DSM 5) and followed up at the psychiatric consultation in Hédi Chaker university Hospital of Sfax.Data collection was performed using a sheet exploring socio-demographic and clinical data. We used Birchwood insight scale to assess the quality of insight and Rosenberg’s Self-Esteem scale.ResultsThe average age of our patients was 44,52±12,99 years old.The sex ratio =0.32.Patients were followed for bipolar I disorder(60.6%).The first episode of the disease was depressive in(51.5%) of cases.The average number of depressive episodes was1.97±1.87.The last episode was depressive in(57.6%) or manic in(42.4%).There were no psychotic characteristics in(42.4%) of cases.The patients had good insight in(54.5%).The average of self-esteem score was27±7.85and it was low in 51.5% of cases.Factors correlated with good insight were bipolar II disorder(p=0.001), high number of depressive episodes(p=0.013) and absence of psychotic characteristics(p=0.003) during the last episode.In addition,good insight was significantly associated with low self-esteem(p=0.023).ConclusionsOur study shows that a poor insight depends mainly on the clinical characteristics of bipolar disorders. Moreover,low self-esteem seems to be linked to it. For this reason, our attention should be focused on psychoeducation to improve insight, especially during episodes, in order to facilitate integration and increase patients’ self-esteem.

Clinical characteristics of bipolar disorders with postpartum depressive onset

BackgroundPostpartum period is associated with an increased risk of bipolar disorder diagnosis and relapse, mainly major depressive episode. Onset during this period might be associated with specific characteristics. AimTo compare the socio-demographic and clinical characteristics of parous women presenting with bipolar disorder and an index depressive episode occurring during or outside the postpartum period. MethodsUsing the multicenter cohort FACE-BD (FondaMental Academic Centers of Expertise for Bipolar Disorders), we considered all women who started their BD with a major depressive episode and have at least one child. We compared two groups depending on the onset: in or outside the postpartum period. ResultsAmong the 759 women who started BD with a major depressive episode, 93 (12.2%) had a postpartum onset, and 666 (87.8%) had not. Women who started BD in the postpartum period with a major depressive episode have a more stable family life, more children, an older age at onset, more Bipolar 2 disorder, less history of suicide attempts, less depressive episodes and more mood stabilizer treatments as compared to those who started with a major depressive episode outside the postpartum period. The multivariable logistic regression showed that women with an onset in the postpartum period had significantly more children, less lifetime depressive episodes and a lower rate of history of suicide attempts as compared to women with an onset outside the postpartum period. DiscussionOur results suggest that women starting their BD with postpartum depression have a more favorable course of BD, especially less history of suicide attempt and less lifetime depressive episodes.

Plasma microRNA Array Analysis Identifies Overexpressed miR-19b-3p as a Biomarker of Bipolar Depression Distinguishing From Unipolar Depression.

ObjectivesThe clinical characteristics of bipolar disorder (current major depressive episode) (BD) overlap with unipolar depressive disorder (UD), which makes it difficult to perform an accurate diagnosis. We identified plasma microRNAs (miRNAs) that distinguished BD from UD and explored the relationship between miRNA expression levels and clinical characteristics.MethodsTotal miRNAs from blood plasma from seven UD patients, seven BD patients, and six controls were analyzed. The identified miRNAs were validated in a separate population group. Depression severity and early life adversities were assessed. Bioinformatic analysis was conducted to investigate the target genes that were identified and the pathways associated with the altered miRNAs.ResultsCompared to controls, 42 miRNAs were differentially expressed in patients. miR-19b-3p, miR-3921, and miR-1180-3p were selected to validate the microarray results. Only miR-19b-3p was validated as down-regulated in patients. The primary predicted genes associated with miR-19b-3p were MAPK1, PTEN, and PRKAA1. The most relevant KEGG pathways included mTOR, FoxO, and the PI3-K/Akt signaling pathway. BD patients were more likely to have higher expression levels of miR-19b-3p and more severe childhood trauma experience compared to UD patients.ConclusionsPlasma miR-19b-3p is a potential non-invasive biomarker that might be useful in distinguishing UD from BD. miR-19b3p was predicted to be involved in the pathway of inflammatory dysregulation associated with experiencing early childhood trauma.

Relationship of Intolerance of Uncertainty and Attachment Styles with the Clinical Features of Bipolar Disorder in Remission.

The intolerance of uncertainty and attachment styles may predict the severity and clinical characteristics of bipolar disorder. In this study, we aimed to investigate these features in remitted bipolar patients. This cross-sectional descriptive study included 150 BPD patients who were followed up at the outpatient clinics of Bakırköy Prof. Dr. Mazhar Osman Research and Training Hospital for Psychiatric and Neurological Diseases. After the evaluation for the inclusion/ exclusion criteria, scores on the Young Mania Rating Scale and the Hamilton Depression Rating Scale were determined to confirm the state of remission. A sociodemographic data form, the Intolerance of Uncertainty Scale (IUS-12), the Relationship Scales Questionnaire (RSQ), the Inventory of Close Relationship Experiences 2 (ICRE- 2), the Suicidal Behavior Questionnaire (SBQ) and the World Health Organization Disability Assessment Schedule 2.0 (WHODAS-2) were used to acquire data. Patients with a history of two or more suicidal attempts had significantly increased scores on the ICRE-2 avoidant subscale (p=0.001). Their scores on the ICRE-2 anxious subscale positively correlated with those on the IUS-12 prospective anxiety (p=0.000), and inhibitory anxiety (p=0.000) subscales. The linear regression model including the scores on the ICRE-2 avoidant and anxious subscales, the IUS-12 prospective anxiety and inhibitory anxiety subscales and the WHODAS-2 was predictive of the number of suicide attempts. The number of suicide attempts might be higher in BPD patients with avoidant or anxious attachment styles, high intolerance of uncertainty and high levels of disability.

Assessment of sleep quality in bipolar euthymic patients

ObjectiveSleep quality is affected in bipolar disorder even in euthymic episodes. The aim of this study was to assess sleep quality in bipolar euthymic patients, determine related clinical characteristics and evaluate its effects on functionality. MethodsA total of 122 outpatients were included. Scales were used to confirm that patients were euthymic. Mini Mental Test was performed to exclude patients with a diagnosis of dementia. A data form for socio-demographic features and clinical characteristics of bipolar disorder have been completed. SCID-I and SCID II were used. The general features of sleep were investigated by General Sleep Questionnaire. All patients completed Pittsburgh Sleep Quality Index, Epworth Sleepiness Scale and Bipolar Disorder Functioning Questionnaire. Results56.5% of our sample had poor sleep quality. Patients with poor sleep had a longer time to fall asleep and more frequent waking after sleep onset. Caffeine use and smoking, history of suicide attempts, seasonality, comorbidity of lifetime anxiety, somatoform and impulse control disorders, using antidepressant medication and administration of electroconvulsive therapy were significantly higher; emotional and intellectual functioning, household relations, taking initiative, self-sufficiency and total functionality were lower in bipolar patients with poor sleep quality (p<0.05). The strongest predictor of sleep quality problem was seasonality, recording an odds ratio of 3.91. ConclusionsSleep quality is closely related with clinical features of bipolar disorder. Sleep quality is affected negatively in euthymic episodes of bipolar disorder and poor sleep quality cause loss in functionality. Assessment of sleep disturbances routinely in psychiatric interviews and dealing with sleep problems regardless mood episodes may improve sleep quality, thereby functionality and quality of life.

Assessment of Dyadic Adjustment and Sexual Functions in Patients with Bipolar Disorder.

There are limited studies investigating the relation between dyadic adjustment, and sexual functions. The aim of this study was to compare patients with bipolar disorder (BD) in euthymic phase with healthy controls, and confirm our hypothesis which we expect to find that dyadic adjustment is negatively affected in bipolar patients with sexual dysfunctions (SDs). A total of 50 euthymic bipolar patients (32 female, 18 male), and 50 healthy individuals as a control group (27 female, 23 male) were included in the study. A data form for socio-demographic features and two other forms for clinical characteristics of bipolar disorder and sexual functions have been filled by clinician. The Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders, fourth edition (DSM-4) Axis I was used to determine axis I psychiatric disorders. All patients completed Golombok Rust Inventory of Sexual Satisfaction (GRISS), and Dyadic Adjustment Scale (DAS). Twenty-five (50%) of bipolar patients, and 13 (48.8%) of healthy controls were found to have SDs. There was a significant difference between bipolar patients, and healthy controls in regard to the presence of SDs (p=0.013). Dissatisfaction, communication, and anorgasmia subscale scores, and total scores of GRISS was found to be higher in female patients with BD. Intercourse frequency, impotence and premature ejaculation subscale scores and total scores of GRISS were higher in male patient group than healthy controls. When bipolar patients and healthy controls were compared, there was a significant difference between dyadic cohesion and affectional expression scores as measured by DAS. As a result of the univariate and regression analyzes, it was determined that the variable affecting the dyadic adjustment in bipolar patients was affected by sexual dysfunction rather than disease presence. The results of this study have shown that the prevalence rate of SDs is higher in bipolar patients than healthy individuals. It was determined that the variable affecting the dyadic adjustment of patients with BB was affected by sexual function rather than disease presence. The presence of SDs in bipolar patients have negative effects on dyadic adjustment.

P.2.d.007 - Assessment of sleep quality in bipolar euthymic patients

Abstract Objective Sleep quality is affected in bipolar disorder even in euthymic episodes. The aim of this study was to assess sleep quality in bipolar euthymic patients, determine related clinical characteristics and evaluate its effects on functionality. Methods A total of 122 outpatients were included. Scales were used to confirm that patients were euthymic. Mini Mental Test was performed to exclude patients with a diagnosis of dementia. A data form for socio-demographic features and clinical characteristics of bipolar disorder have been completed. SCID-I and SCID II were used. The general features of sleep were investigated by General Sleep Questionnaire. All patients completed Pittsburgh Sleep Quality Index, Epworth Sleepiness Scale and Bipolar Disorder Functioning Questionnaire. Results 56.5% of our sample had poor sleep quality. Patients with poor sleep had a longer time to fall asleep and more frequent waking after sleep onset. Caffeine use and smoking, history of suicide attempts, seasonality, comorbidity of lifetime anxiety, somatoform and impulse control disorders, using antidepressant medication and administration of electroconvulsive therapy were significantly higher; emotional and intellectual functioning, household relations, taking initiative, self-sufficiency and total functionality were lower in bipolar patients with poor sleep quality (p Conclusions Sleep quality is closely related with clinical features of bipolar disorder. Sleep quality is affected negatively in euthymic episodes of bipolar disorder and poor sleep quality cause loss in functionality. Assessment of sleep disturbances routinely in psychiatric interviews and dealing with sleep problems regardless mood episodes may improve sleep quality, thereby functionality and quality of life.

A review of factors associated with greater likelihood of suicide attempts and suicide deaths in bipolar disorder: Part II of a report of the International Society for Bipolar Disorders Task Force on Suicide in Bipolar Disorder.

Many factors influence the likelihood of suicide attempts or deaths in persons with bipolar disorder. One key aim of the International Society for Bipolar Disorders Task Force on Suicide was to summarize the available literature on the presence and magnitude of effect of these factors. A systematic review of studies published from 1 January 1980 to 30 May 2014 identified using keywords 'bipolar disorder' and 'suicide attempts or suicide'. This specific paper examined all reports on factors putatively associated with suicide attempts or suicide deaths in bipolar disorder samples. Factors were subcategorized into: (1) sociodemographics, (2) clinical characteristics of bipolar disorder, (3) comorbidities, and (4) other clinical variables. We identified 141 studies that examined how 20 specific factors influenced the likelihood of suicide attempts or deaths. While the level of evidence and degree of confluence varied across factors, there was at least one study that found an effect for each of the following factors: sex, age, race, marital status, religious affiliation, age of illness onset, duration of illness, bipolar disorder subtype, polarity of first episode, polarity of current/recent episode, predominant polarity, mood episode characteristics, psychosis, psychiatric comorbidity, personality characteristics, sexual dysfunction, first-degree family history of suicide or mood disorders, past suicide attempts, early life trauma, and psychosocial precipitants. There is a wealth of data on factors that influence the likelihood of suicide attempts and suicide deaths in people with bipolar disorder. Given the heterogeneity of study samples and designs, further research is needed to replicate and determine the magnitude of effect of most of these factors. This approach can ultimately lead to enhanced risk stratification for patients with bipolar disorder.

Clinical characteristics of bipolar disorder: a comparative study between Argentina and the United States.

BackgroundBipolar disorder presents with diverse clinical manifestations. Numerous investigators have sought to identify variables that may predict a more severe illness course.MethodsWith the objective of studying the clinical characteristics of bipolar patients between South and North America, a comparison was performed between a sample from Argentina (n = 449) and a sample from the United States (n = 503) with respect to demographics and clinical characteristics, including presence of comorbidities.ResultsThe Argentinian sample had more unfavorable demographics and higher rates of prior psychiatric hospitalization and prior suicide attempt but a better social outcome. However, the sample from the United States had a higher rate of prior year rapid cycling, as well as younger bipolar disorder onset age (mean ± SD, 17.9 ± 8.4 vs. 27.1 ± 11.4 years) and more severe clinical morbidity, though there was no significant difference in terms of the total duration of the illness. Argentinian compared to American patients were taking more mood stabilizers and benzodiazepines/hypnotics, but fewer antipsychotics and other psychotropic medications, when considering patients in aggregate as well as when stratifying by illness subtype (bipolar I versus bipolar II) and by illness onset age (≤21 vs. >21 years). However, there was no significant difference in rate of antidepressant prescription between the two samples considered in aggregate.ConclusionsAlthough possessing similar illness durations, these samples presented significant clinical differences and distinctive prescription patterns. Thus, though the Argentinian compared to North American patients had more unfavorable demographics, they presented a better social outcome and, in several substantive ways, more favorable illness characteristics. In both samples, early onset (age ≤ 21 years) was a marker for poor prognosis throughout the illness course, although this phenomenon appeared more robust in North America.

Comorbidity of Adult Attention Deficit and Hyperactivity Disorder in Bipolar Patients: Prevalence, Sociodemographic and Clinical Correlates.

The aims of this study were to determine the frequency of adult attention deficit and hyperactivity disorder (ADHD) comorbidity in bipolar patients and to investigate the influence of this comorbidity on the clinical characteristics of bipolar disorder (BD). A total of 135 patients with BD type I and II and BD not otherwise specified were included in this study. First, the Adult ADD/ADHD DSM-IV-Based Diagnostic Screening and Rating Scale (ADHD scale) was administered to all patients, and all of the patients were also interviewed for the diagnosis. Patients who were diagnosed as having ADHD comorbidity (n=23) on the basis of DSM-IV and those who were not diagnosed to have ADHD comorbidity (n=32) were compared in terms of sociodemographic and clinical correlates. Twenty-three of 135 patients (17%) were found to have ADHD comorbidity. In the ADHD comorbidity group, the level of education and the number of suicide attempts were higher (p=.011 and .043, respectively). Although not significant, subthreshold depressive symptoms in interepisodic periods, the lifetime history of antidepressant use and the total number of lifetime depressive episodes tended to be more frequent in bipolar disorder with ADHD comorbidity group than in the control group. Bipolar disorder has a frequent comorbidity with ADHD, and contrary to expectations, it might be related to the depressive aspect, rather than the manic aspect, of bipolar disorder. Early diagnosis of ADHD comorbidity in bipolar patients might help to prevent serious risk factors.

Association between family history of mood disorders and clinical characteristics of bipolar disorder: Results from the Brazilian bipolar research network

ObjectivesTo compare clinical characteristics of bipolar disorder (BD) in patients with and without a family history of mood disorders (FHMD) in a large sample from the Brazilian Research Network of Bipolar Disorders. MethodsFour-hundred eighty-eight DSM-IV BD patients participating in the Brazilian Research Network of Bipolar Disorders were included. Participants were divided between those with FHMD (n=230) and without FHMD (n=258). We compared these two groups on demographic and clinical variables and performed a logistic regression to identify which variables were most strongly associated with positive family history of mood disorders. ResultsBD patients with FHMD presented with significantly higher lifetime prevalence of any anxiety disorder, obsessive-compulsive disorder, social phobia, substance abuse, and were more likely to present history of suicide attempts, family history of suicide attempts and suicide, and more psychiatric hospitalizations than BD patients without FHMD. Logistic regression showed that the variables most strongly associated with a positive FHMD were any comorbid anxiety disorder, comorbid substance abuse, and family history of suicide. LimitationsCross-sectional study and verification of FHMD by indirect information. ConclusionBD patients with FHMD differ from BD patients without FHMD in rates of comorbid anxiety disorder and substance abuse, number of hospitalizations and suicide attempts. As FHMD is routinely assessed in clinical practice, these findings may help to identify patients at risk for particular manifestations of BD and may point to a common, genetically determined neurobiological substrate that increases the risk of conditions such as comorbidities and suicidality in BD patients.

EEG abnormality in first episode mania: relation with clinical properties in subsequent remission period

Objective: The aim of this study is to investigate the frequency of abnormal EEG findings in first attack mania and to determine whether EEG abnormality improves at the subsequent remission period. The secondary, to compare cases with or without abnormal EEG findings with regard to clinical characteristics of bipolar disorder in remission period. Methods: In the present study, 86 consecutive first episode mania cases between the ages of 18-65 diagnosed as Bipolar Disorder according to DSM-IV who referred to our outpatient clinic or emergency service whose informed consent form was signed by first degree relatives were evaluated. Inclusion criteria were not having previous depressive episode absence of any neurologic disorder, especially epilepsy, absence of history head trauma and/or loss of consciousness and not using any drugs which can influence electroencephalographic activity before EEG (antiepileptic, anxiolytic, antidepressant and antipsychotics) diagnostic interviews were made with SCID-I (DSM-IV Structured Clinical Interview) and information on disease was recorded with SKIP-TURK (Mood Disorder Diagnosis and Follow up Form). EEG recordings were made with digital EEG device in 16 channels. Results: EEG abnormality is more frequent in mania than remission period (p= 0.022). All cases with continuing abnormal EEG findings in remission period are women. In cases with continuing EEG abnormality, the age of menarche is smaller (p= 0.032) but family history is less frequent (p= 0.008). Childhood trauma and history of suicide attempt is more frequent in cases with persistent EEG abnormality in remission period as well (p= 0.001 and 0.005). Of the cases whose abnormal EEG findings improved in remission period, 83.3% were treated with anticonvulsants. Conclusion: In some bipolar cases, abnormal EEG is present from the onset of disease and is associated with clinical characteristics. Abnormal EEG returns to normal in half of the cases in remission period.

Childhood Trauma Is Associated With Severe Clinical Characteristics of Bipolar Disorders

Beyond genetic risk variants, the pathophysiology of bipolar disorders is likely to be partly determined by environmental susceptibility factors. Our study is one of the first to investigate, in a large sample of well-characterized bipolar patients, associations between clinical presentations and childhood trauma subtypes, including neglect and abuse items. 587 patients with DSM-IV-defined bipolar disorder were recruited from France and Norway between 1996-2008 and 2007-2012, respectively. History of childhood trauma was obtained using the Childhood Trauma Questionnaire. Clinical variables were assessed with the Structured Clinical Interview for DSM-IV Axis I Disorders (Norwegian sample) or the Diagnostic Interview for Genetic Studies (French sample). Earlier age at onset of bipolar illness, suicide attempts, rapid cycling, and an increased number of depressive episodes each had significant associations (P ≤ .001) with at least 1 subtype of childhood trauma (emotional abuse, sexual abuse, and emotional neglect). Multivariate analyses investigating trauma variables together showed that both emotional and sexual abuse were independent predictors of lower age at onset (P = .002 for each) and history of suicide attempts (OR = 1.60 [95% CI, 1.07 to 2.39], P = .023; OR = 1.80 [95% CI, 1.14 to 2.86], P = .012, respectively), while sexual abuse was the strongest predictor of rapid cycling (OR = 2.04 [95% CI, 1.21 to 3.42], P = .007). Females reported overall higher childhood trauma frequency and greater associations to clinical expressions than males (P values < .05). Our results demonstrate consistent associations between childhood trauma and more severe clinical characteristics in bipolar disorder. Further, they show the importance of including emotional abuse as well as the more frequently investigated sexual abuse when targeting clinical characteristics of bipolar disorder.

Comparison of clinical characteristics of bipolar and depressive disorders in Korean clinical sample of youth: a retrospective chart review

The purpose of this study was to compare the clinical characteristics of bipolar disorder I, II (BD I and II) and not otherwise specified (BD NOS) to those of major depressive disorder (MDD) in a clinical sample of Korean children and adolescents. This study was a cross-sectional review of longitudinal observational data. Two psychiatrists retrospectively reviewed the medical records of 198 children and adolescents (age 6-18) that were diagnosed as having bipolar or depressive disorders from March 2010 to February 2012 at Department of Psychiatry of Asan Medical Center, Seoul, Korea. Every subject's diagnoses were reviewed and confirmed. BD I, II and MDD were assessed according to the Diagnostic and Statistical Manual-IV criteria. BD NOS was defined based on the criteria for the Course and Outcome of Bipolar Youth study. Comparisons were made in demographic information, clinical characteristics, family history, and psychiatric comorbidities at baseline and during observation. Among 198 subjects, 20 (10.1%) subjects were diagnosed as having BD I, 10 (5.1%) as BD II, 25 (12.6%) as BD NOS and 143 (73.7%) as MDD. BD depression was associated with mood change while taking an antidepressant, familial bipolarity, aggressive behaviors, and atypical features. Comorbid obsessive-compulsive disorder tended to be higher in BD NOS than in MDD. Presence of psychosocial stressors was more common in MDD than in BD depression. In children and adolescents, bipolar depression is distinct from unipolar depression in family history, comorbidity, and clinical characteristics.

Bipolar Disorder with Seasonal Pattern: Clinical Characteristics and Gender Influences

Bipolar disorder (BD) has a multifactorial etiology with heterogeneous clinical presentations. Around 25% of BD patients may present with a depressive seasonal pattern (SP). However, there are limited scientific data on the prevalence of SP, its clinical manifestations, and any gender influence. Four hundred and fifty-two BD I and II cases (62% female), recruited from three French university-affiliated psychiatric departments, were assessed for SP. Clinical, treatment, and sociodemographic variables were obtained from structured interviews. One hundred and two (23%) cases met DSM-IV (Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition) criteria for SP, with similar frequency according to gender. Multivariate analysis showed a significant association between SP and BD II (odds ratio [OR] = 1.99, p = 0.01), lifetime history of rapid cycling (OR = 2.05, p = 0.02), eating disorders (OR = 2.94, p = 0.003), and total number of depressive episodes (OR = 1.13, p = 0.002). Seventy-one percent of cases were correctly classified by this analysis. However, when stratifying the analyses by gender, SP was associated with BD II subtype (OR = 2.89, p = 0.017) and total number of depressive episodes (OR = 1.21, p = 0.0018) in males but with rapid cycling (OR = 3.02, p = 0.0027) and eating disorders (OR = 2.60, p = 0.016) in females. This is the first study to identify different associations between SP and clinical characteristics of BD according to gender. The authors suggest that SP represents a potentially important specifier of BD. These findings indicate that seasonality may reflect increased severity or complexity of disorder.