Can we predict poor outcome at presentation in patients with lobar hemorrhage?

OBJECTIVE: Supratentorial lobar hemorrhage can be devastating. Outcome prediction at presentation is important in triage and management decisions as well as appropriate resource utilization. We performed a decision tree analysis combining clinical and CT scan features to predict poor and hopeless outcome at initial presentation in patients with lobar hemorrhage. METHODS: We analyzed 81 patients with spontaneous lobar hemorrhage presenting within 48 hours of initial neurologic symptoms. In the first analysis, poor outcome was defined as Glasgow outcome score (GOS) of 1 (death), 2 (vegetative state) or 3 (dependence) at discharge. A second analysis was based on worst possible outcome (GOS 1-2). Binary recursive partitioning was fitted in a model, and odds ratios with 95% confidence intervals (CI) were calculated. RESULTS: Lobes involved were temporal (36%), parietal (33%), frontal (25%) and occipital (6%). Seventy-three percent of patients presented less than 17 h after initial ictus. The probability of poor outcome was 97% (CI 85-100%) in patients with hemorrhage greater than 40 cm(3). In the subset of patients with a volume less than 40 cm(3), time interval from ictus to presentation (< 17 h) together with a Glasgow coma score (GCS) less than or equal to 13 predicted poor outcome. Eighty-five percent (CI 42-99%) of those presenting early with GCS less than or equal to 13 had a poor outcome. In the second analysis, all patients with GCS less than or equal to 12 and septum pellucidum shift > 6 mm had GOS of 1 or 2 (CI 72-100%). CONCLUSION: Poor outcome in patients with lobar hemorrhage is associated with a hemorrhage size of more than 40 cm(3), GCS less than or equal to 13, but also dependent on time interval between ictus and presentation. This is consistent with prior studies demonstrating deterioration from enlargement may occur when patients present early on. Stupor and septum pellucidum shift greater than 6 mm on CT scan at presentation predict a hopeless outcome in conservatively treated patients. Ninety-one percent of patients were treated medically, thus these outcomes are largely a reflection of the natural history of spontaneous lobar hemorrhage. These signs may influence triage and management decisions.     

Can memory and executive functions in patients with obsessive–compulsive disorder predict outcome of cognitive behavioural therapy?

Background: Most studies find that patients with obsessive–compulsive disorder (OCD) have impaired memory and executive functions. Cognitive behavioural therapy (CBT) is the recommended psychotherapeutic treatment of patients with OCD. We hypothesized that impairments in memory and executive functions would predict poor outcome of CBT. Aim: To investigate whether memory and executive functions in patients with OCD could predict outcome of CBT. Methods: We assessed 39 patients with OCD before CBT with neuropsychological tests of memory and executive functions, the Hamilton Depression Rating Scale, and the Global Assessment of Functioning Scale. Furthermore, we assessed severity of OCD symptoms before and after CBT using the Yale–Brown Obsessive Compulsive Scale. Results: There were no statistically significant differences between recovered (41%) and non-recovered patients (59%) on any neuropsychological test variables or on any baseline demographic variables. Furthermore, change in OCD symptoms was not predicted by neuropsychological test performances or baseline severity of OCD symptoms. The only statistically significant finding was that non-recovered patients had lower social functioning before CBT than recovered patients (p = 0.018, d = 0.797). Conclusions: Memory and executive functions in patients with OCD could not predict outcome of CBT, but level of social functioning may be a predictor of CBT outcome. Some of the main clinical implications are that we cannot use memory and executive functions, or baseline severity of OCD symptoms to determine which patients should be offered CBT.     

Does recovery from substance use disorder matter in patients with bipolar disorder?

OBJECTIVE: To examine the potential impact of recovery from substance use disorder (SUD) on the course of bipolar disorder among patients diagnosed with both bipolar and substance use disorders according to DSM-IV criteria. METHOD: As part of the multicenter Systematic Treatment Enhancement Program for Bipolar Disorder (STEP-BD), we examined bipolar disorder status (i.e., whether the patient is recovering or recovered), role functioning, and quality of life in the first 1000 patients to enter the STEP-BD study. We compared patients with no history of SUD, current SUD, and past SUD (i.e., lifetime SUD, but no current SUD) on these parameters. Data were collected between November 1999 and April 2001. RESULTS: A current clinical status of recovering or recovered from bipolar disorder was less likely among patients with current or past SUD compared to patients with no SUD (p < .002). Recovering/recovered status did not differ significantly between patients with current SUD versus past SUD. All 3 groups differed significantly on measures of role functioning as assessed by the Longitudinal Interval Follow-Up Evaluation-Range of Impaired Functioning Tool (LIFE-RIFT), with poorest role functioning among patients with current SUD, followed by patients with past SUD (p = .0002). Patients with current or past SUD reported significantly lower quality of life as measured by the LIFE-RIFT and the Quality of Life Enjoyment and Satisfaction Questionnaire and more lifetime suicide attempts (p < .001) than patients without an SUD; patients with past versus current SUD did not differ significantly on these measures. CONCLUSION: The results suggest that patients with bipolar disorder who experience sustained remission from an SUD fare better than patients with current SUD, but not as well as subjects with no history of SUD; differences among the 3 groups appear greatest in the area of role functioning.     

Do epileptic seizures predict outcome in patients with oligodendroglioma?

Zonisamide (ZNS) is an antiepileptic drug (AED) with multiple putative mechanisms of action. It is chemically unrelated to other AEDs. It has been available in Japan since 1989 but was only licensed in Europe in 2005. Its efficacy and tolerability have been shown in several randomised controlled trials, but large studies on long-term performance in Western clinical practice are scarce. We assessed a large cohort of consecutive people who started ZNS at a tertiary epilepsy referral centre, from June 2005 to July 2009. Forty-six percent of the 417 people included were still taking ZNS at last follow-up, with an estimated retention rate at three years of 30%. Almost one third of the population reported a period of improvement in terms of seizure reduction of at least six months duration whilst on ZNS. Sixteen people became seizure free for at least six months and seven of these were seizure free for one year or more. Adverse events occurred in 58%, frequently CNS-related. People on three or more AEDs and people starting zonisamide at 25mg daily rather than 50mg or more, were more likely to discontinue ZNS. Retention rates for ZNS were similar to those previously reported, and comparable to lamotrigine, topiramate, pregabalin, higher than gabapentin, and lower than levetiracetam.     

Does anxiety increase impulsivity in patients with bipolar disorder or major depressive disorder?

The objective of this study was to examine whether anxiety increases impulsivity among patients with bipolar disorder (BPD) and major depressive disorder (MDD). Subjects comprised 205 BPD (mean age ± SD 36.6 ± 11.5 y; 29.3% males) and 105 with MDD (mean age ± SD 38 ± 13.1 y; 29.5% males) diagnosed using the DSM-IV-SCID. Impulsivity was assessed with the Barratt Impulsivity Scale and anxiety with the Hamilton Anxiety Rating Scale. Comorbid anxiety disorders were present in 58.9% of the BPD and 29.1% of MDD. BPD were significantly more impulsive than MDD (p < 0.001), and both BPD and MDD subjects showed significantly higher impulsivity when anxiety was present either as a comorbidity (p = 0.010) or as a symptom (p = 0.011). Impulsivity rose more rapidly with increasing anxiety symptoms in MDD than in BPD. The presence of anxiety, either as a comorbid disorder or as current anxiety symptoms, is associated with higher impulsivity in subjects with either BPD or MDD.     

Do positive emotions predict symptomatic change in bipolar disorder?

Objectives:  Bipolar disorder is associated with positive emotion disturbance, though it is less clear which specific positive emotions are affected.
Methods:  The present study examined differences among distinct positive emotions in recovered bipolar disorder (BD) patients (n = 55) and nonclinical controls (NC) (n = 32) and whether they prospectively predicted symptom severity in patients with BD. At baseline, participants completed self-report measures of several distinct trait positive emotions. Structured assessments of diagnosis and current mood symptoms were obtained for BD participants. At a six-month follow-up, a subset of BD participants' (n = 39) symptoms were reassessed.
Results:  BD participants reported lower joy, compassion, love, awe, and contentment compared to NC participants. BD and NC participants did not differ in pride or amusement. For BD participants, after controlling for baseline symptom severity, joy and amusement predicted increased mania severity, and compassion predicted decreased mania severity at the six-month follow-up. Furthermore, amusement predicted increased depression severity and pride predicted decreased severity of depression. Awe, love, and contentment did not predict symptom severity.
Conclusions:  These results are consistent with a growing literature highlighting the importance of positive emotion in the course of bipolar disorder.     

Thought disorder in euthymic bipolar patients: a possible endophenotype of bipolar affective disorder?

The search for psychological markers or for psychological endophenotypes for bipolar affective disorder has been frustrating, and the study of neuropsychological and neurocognitive functioning may be useful in this search. This article presents the results of a study comparing Rorschach protocols from a sample of adult euthymic bipolar patients (N = 18) and matched healthy controls (N = 8). Bipolar patients showed a higher proportion of immature responses and more instances of thought disorder; patients also showed significantly more severe thought disorder. These findings are discussed in the context of 2 related previous studies. We suggest that our modest series of studies using the Rorschach Inkblot Test provides preliminary evidence that certain variables-especially the measures of thought disorder but possibly also the lack of emotional responses under cognitive "control" and the excessive proportion of immature content responses-may represent a possible endophenotype of bipolar disorder.     

Is bipolar disorder overdiagnosed among patients with substance abuse?

BACKGROUND: Bipolar illness is frequently misdiagnosed. Several studies have focused on the underdiagnosis of this condition and the frequent long delay in its recognition. However, the illness is difficult to diagnose and many of its symptoms are shared by other conditions. In order to determine the accuracy of the diagnosis of bipolar illness among subjects with substance abuse, we carried out a study in patients with a previous diagnosis of bipolar disorder (BD) and known history of substance abuse or dependence, who were currently engaged in treatment for substance abuse. METHODS: Individuals participating in a community-based substance treatment program and who had a previous diagnosis of BD were invited to undergo a structured clinical interview for diagnosis performed by a psychiatrist. In addition to the interview, previous hospital records were reviewed whenever possible. Diagnosis was made following strict DSM-IV criteria. RESULTS: Only 9 of 21 (42.9%) subjects met diagnostic criteria for BD. Seven were BD type II and two were BD I. CONCLUSIONS: Bipolar disorder is frequently misdiagnosed following strict DSM-IV criteria. Among subjects with substance abuse, it may be overdiagnosed by psychiatrists.     

Is bipolar disorder specifically associated with panic disorder in youths?

OBJECTIVE: To replicate previous findings of high rates of bipolar disorder (BPD) in patients with panic disorder (PD) and determine if youths with both PD and BPD have more severe illness. METHOD: 2025 youths aged 5 to 19 years seen at a mood and anxiety specialty clinic were assessed using the Schedule for Affective Disorders and Schizophrenia for School Aged Children-Present Episode, 4th Revision. Diagnoses were made using DSM-III and DSM-III-R criteria and then updated to conform to DSM-IV criteria. Patients were grouped into those with PD (N = 42), those with non-PD anxiety disorders (N = 407), and psychiatric controls with no anxiety diagnosis (N = 1576). RESULTS: Youths with PD were more likely to exhibit comorbid BPD (N = 8, 19.0%) than youths with either non-PD anxiety disorders (N = 22, 5.4%) or other nonanxious psychiatric disorders (N = 112, 7.1%). The symptoms of PD and mania were not affected by the comorbidity between PD and BPD. Youths with both PD and BPD had more psychotic symptoms and suicidal ideation than patients with PD and other non-bipolar psychiatric disorders and BPD patients with other nonanxious comorbid disorders. CONCLUSION: The presence of either PD or BPD in youths made the co-occurrence of the other condition more likely, as has been noted in adults. Patients with both PD and BPD are more likely to have psychotic symptoms and suicidal ideation. In treating youths with PD, clinicians must be vigilant for possible comorbid BPD or risk of pharmacologic triggering of a manic or hypomanic episode. Prospective studies are needed to learn if PD predicts the onset of BPD in children and adolescents.     

Does the risk of developing dementia increase with the number of episodes in patients with depressive disorder and in patients with bipolar disorder?

OBJECTIVE: Several findings suggest that some patients with depressive or bipolar disorder may be at increased risk of developing dementia. The present study aimed to investigate whether the risk of developing dementia increases with the number of affective episodes in patients with depressive disorder and in patients with bipolar disorder. METHODS: This was a case register study including all hospital admissions with primary affective disorder in Denmark during 1970-99. The effect of the number of prior episodes leading to admission on the rate of readmission with a diagnosis of dementia following the first discharge after 1985 was estimated. A total of 18,726 patients with depressive disorder and 4248 patients with bipolar disorder were included in the study. RESULTS: The rate of a diagnosis of dementia on readmission was significantly related to the number of prior affective episodes leading to admission. On average, the rate of dementia tended to increase 13% with every episode leading to admission for patients with depressive disorder and 6% with every episode leading to admission for patients with bipolar disorder, when adjusted for differences in age and sex. CONCLUSION: On average, the risk of dementia seems to increase with the number of episodes in depressive and bipolar affective disorders.     

Does socioeconomic status predict course and outcome in patients with psychosis?

Background We examined the relationship between socioeconomic status (SES) and course and outcome of patients with psychosis. Two hypotheses were examined: a) patients with higher best-ever SES will have better course and outcome than those with lower best-ever SES, and b) patients with greater downward drift in SES will have poorer course and outcome than those with less downward drift. Method Data were drawn from the baseline and 2-year follow-up assessments of the UK700 Case Management Trial of 708 patients with severe psychosis. The indicators of SES used were occupational status and educational achievement. Drift in SES was defined as change from best-ever occupation to occupation at baseline. Results For the baseline data highly significant differences were found between best-ever groups and negative symptoms (non-manual vs. unemployed – coef −10.5, p=0.000, 95 % CIs 5.1–15.8), functioning (non-manual vs. unemployed – coef −0.6, p=0.000, 95 % CIs 0.3 to −0.8) and unmet needs (manual vs. unemployed – coef 0.5, p=0.004, 95 % CIs 0.2–0.9). No significant differences between best-ever groups were found for days in hospital, symptoms, perceived quality of life and dissatisfaction with services. Significant differences for clinical and social variables were found between drift and non-drift SES groups. There were no significant findings between educational groups and clinical and social variables. Conclusions Best-ever occupation, but not educational qualifications, appeared to predict prognosis in patients with severe psychosis. Downward drift in occupational status did not result in poorer illness course and outcome. Accepted: 3 August 2001     

Does percent body fat predict outcome in anorexia nervosa?

OBJECTIVE: The goal of this study was to investigate the relationship of body composition and neuroendocrine levels with clinical outcome in women with anorexia nervosa in a relapse-prevention trial. METHOD: Body composition and fasting cortisol and leptin levels were assessed before random assignment in 32 weight-recovered subjects with anorexia nervosa from the New York site of the Fluoxetine to Prevent Relapse in Women With Anorexia Nervosa trial. Clinical outcome at the end of study participation was defined using modified Morgan-Russell criteria (full, good, fair, poor), then dichotomized into treatment "success" or "failure." RESULTS: In a binary logistic regression model examining the effect of percent body fat, body mass index, anorexia nervosa subtype, waist-to-hip ratio, and serum cortisol and leptin levels on treatment outcome, only percent body fat was significantly associated with outcome. CONCLUSIONS: In recently weight-restored women with anorexia nervosa, lower percent body fat was associated with poor long-term outcome.     

Do personality traits predict first onset in depressive and bipolar disorder?

The aim was to investigate whether personality traits predict onset of the first depressive or manic episode (the vulnerability hypothesis) and whether personality might be altered by the mood disorder (the scar hypothesis). A systematic review of population-based and high-risk studies concerning personality traits and affective disorder in adults was conducted. Nine cross-sectional high-risk studies, seven longitudinal high-risk studies and nine longitudinal population-based studies were found. Most studies support the vulnerability hypothesis and there is evidence that neuroticism is a premorbid risk factor for developing depressive disorder. The evidence for the scar hypothesis is sparse, but the studies with the strongest design showed evidence for both hypotheses. Only few studies of bipolar disorder were found and the association between personality traits and bipolar disorder is unclear. Neuroticism seem to be a risk factor by which vulnerable individuals can be identified, thus preventing the development of depressive disorder. A connection between personality traits and development of bipolar disorder, and evidence of a personality-changing effect of affective episodes need to be further investigated.     

Can stimulant rebound mimic pediatric bipolar disorder?

The authors describe the case of a 7-year-old girl diagnosed with attention deficit hyperactivity disorder (ADHD) who, following an unsuccessful trial of stimulant medication and subsequent mood symptoms, was diagnosed with bipolar disorder. Following a comprehensive, multidisciplinary assessment, and withdrawal of her complex medication regimen, she was rediagnosed with ADHD. She displayed a positive response to behavioral parent training and pharmacological treatment with a long-acting stimulant. The case illustrates the benefits of a comprehensive, multidisciplinary evaluation and multimodal treatment. Her dramatic response to the long-acting stimulant suggests that many of her affective symptoms were due to stimulant "rebound" versus bipolar disorder. This case highlights the complexities of differentiating severe ADHD from bipolar disorder and suggests that stimulant rebound and other iatrogenic effects should be considered during the differential diagnostic process as potential mimics of bipolar disorder.     

A growth in bipolar disorder?

OBJECTIVE: This case report suggests that screening of patients with psychiatric symptoms using modern neuroimaging can help identify organic causes of mental illness. METHOD: A single case study was reported. RESULTS: We report the case of a 25-year-old woman with a recent diagnosis of bipolar II disorder having an magnetic resonance imaging (MRI) scan as part of a research project that reveals an intraventricular brain tumour. The latter is most likely the cause of her irritability and 'hypomanic' symptoms and is defined anatomically using diffusion tensor imaging and structural and functional imaging using MRI and positron emission tomography. CONCLUSION: The lesion in this individual case most probably produces mood symptoms by impinging upon the fornix, a component of the limbic system. However, more generally, the increase in diagnosis of bipolar disorder has to be tempered against alternate causes of similar symptoms and necessitates vigilance of potential organic mechanisms.     

Measurement of insight in patients with bipolar disorder: are self-rated scales developed for patients with schizophrenia applicable?

Our aim was to study if the Birchwood Insight Scale has acceptable psychometric properties when used for patients with bipolar disorders. Patients with schizophrenia (n = 101), bipolar I (n = 57), and bipolar II disorder (n = 37) completed the self-report scale. The items form 3 subscales, awareness of illness, relabeling of symptoms, and need for treatment. The total scale had good internal consistency for patients with schizophrenia, fairly good for bipolar I, but poor for bipolar II disorder. On subscale level the internal consistency was mostly marginal to poor for all patient groups. The level of insight was similar in schizophrenia and bipolar I disorder. The psychometric properties for the insight scale were poorer in bipolar disorders than in schizophrenia, and the scale did not work for patients with bipolar II disorder. This suggests a cautious use of the scale across different diagnostic groups.