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Obsessive compulsive disorder: a clinical update.

Recent epidemiologic studies have indicated that obsessive compulsive disorder is a fairly common psychiatric condition. In this article, obsessive compulsive disorder, its subtypes, and epidemiologic features are described. The common obsessions and compulsions are discussed, as are the comorbid conditions. Currently, etiologic hypotheses revolve around serotonergic and dopaminergic neurotransmitter systems. Management of patients with obsessive compulsive disorder involves education, pharmacotherapy, and behavior therapy, and recent advances in such treatments offer patients hope. Psychotherapy has not proved useful. In refractory cases, psychosurgical intervention remains an option.

Behavior Therapy↗

Therapeutic plasma exchange and intravenous immunoglobulin for obsessive-compulsive disorder and tic disorders in childhood.

BACKGROUND: In children, exacerbations of tics and obsessive symptoms may occur after infection with group A beta-haemolytic streptococci. If post-streptococcal autoimmunity is the cause of the exacerbations, then children might respond to immunomodulatory treatments such as plasma exchange or intravenous immunoglobulin (IVIG). We studied whether plasma exchange or IVIG would be better than placebo (sham IVIG) in reducing severity of neuropsychiatric symptoms. METHODS: Children with severe, infection-triggered exacerbations of obsessive-compulsive disorder (OCD) or tic disorders, including Tourette syndrome, were randomly assigned treatment with plasma exchange (five single-volume exchanges over 2 weeks), IVIG (1 g/kg daily on 2 consecutive days), or placebo (saline solution given in the same manner as IVIG). Symptom severity was rated at baseline, and at 1 month and 12 months after treatment by use of standard assessment scales for OCD, tics, anxiety, depression, and global function. FINDINGS: 30 children entered the study and 29 completed the trial. Ten received plasma exchange, nine IVIG, and ten placebo. At 1 month, the IVIG and plasma exchange groups showed striking improvements in obsessive-compulsive symptoms (mean improvement on children's Yale-Brown obsessive compulsive scale score of 12 [45%] and 13 [58%], respectively), anxiety (2.1 [31%] and 3.0 [47%] improvement on National Institute of Mental Health anxiety scale), and overall functioning (2.9 [33%] and 2.8 [35%] improvement on National Institute of Mental Health global scale). Tic symptoms were also significantly improved by plasma exchange (mean change on Tourette syndrome unified rating scale of 49%). Treatment gains were maintained at 1 year, with 14 (82%) of 17 children "much" or "very much" improved over baseline (seven of eight for plasma exchange, seven of nine for IVIG). INTERPRETATION: Plasma exchange and IVIG were both effective in lessening of symptom severity for children with infection-triggered OCD and tic disorders. Further studies are needed to determine the active mechanism of these interventions, and to determine which children with OCD and tic disorders will benefit from immunomodulatory therapies.

Adolescent↗

The clinical impact of bipolar and unipolar affective comorbidity on obsessive-compulsive disorder.

Previous studies on the comorbidity of Obsessive-Compulsive Disorder (OCD) have largely focused on comorbidity with major depressive and anxiety disorders. The present investigation deals with a more complex pattern of comorbidity involving bipolarity. Indeed, in a consecutive series of 315 OCD outpatients, 15.7% had such comorbidity (mostly with bipolar II disorder). Unlike non-bipolar OCD patients, these had a more gradual onset of their OCD which, nonetheless, pursued a more episodic course with a greater number of concurrent major depressive episodes. These bipolar OCD patients had a significantly higher rate of sexual and religious obsessions, and a significantly lower rate of checking rituals. OCD probands with non-bipolar major depressive comorbidity (34.8%) were then compared with the remainder of OCD. These 'unipolar' OCD were older, had a more chronic course with hospitalizations and suicide attempts, had greater comorbidity with generalized anxiety disorder and caffeine abuse; finally, they were more likely to have aggressive obsessions and those with a philosophical, superstitious or bizarre content. Our data suggest that when comorbidity occurs with bipolar and unipolar affective disorders it has a differential impact on the clinical characteristics, comorbidity and course of OCD. We submit that the presence of major depression in OCD is incidental, as OCD in such cases dominates the course and dictates treatment choice. By contrast, when bipolar and obsessive-compulsive disorders co-exist, bipolarity should take precedence in diagnosis, course and treatment considerations.

Adolescent↗

Obsessive-compulsive disorder in hospitalized patients with chronic schizophrenia.

Obsessive-compulsive (OC) symptoms have been observed in a substantial proportion of schizophrenic patients. In this study, we assessed the rate of occurrence of OC symptoms and the interrelationship between OC and schizophrenic symptoms in 68 hospitalized chronic schizophrenic patients. The patients were interviewed with the Structured Clinical Interview for Axis-I DSM-IV Disorders - Patient Edition (SCID-P) and the appropriate rating scales including the Scale for the Assessment of Positive Symptoms, the Scale for the Assessment of Negative Symptoms, the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS), the Barnes Akathisia Scale, the Abnormal Involuntary Movement Scale, and the Social Behaviour Schedule (SBS). Sixteen patients (23.5%) met the DSM-IV criteria for OCD. A comparison of schizophrenic patients with and without OCD showed that the schizo-obsessive patients were significantly (1.7-fold) more impaired in basic social functioning, as reflected by the SBS score. No significant between-group differences for any of the other clinical variables were found. There was no significant correlation between OC and schizophrenic symptoms within the schizo-obsessive subgroup. The mean Y-BOCS score for the patients with both schizophrenia and OCD was within the typical range (22.8+/-1.7) observed in OCD without psychosis. The findings provide further evidence for the importance of the OC dimension in schizophrenia and may have important implications for the application of effective treatment approaches in this difficult-to-treat subgroup of schizophrenic patients.

Adult↗

Hypochondriasis and its relationship to obsessive-compulsive disorder.

Hypochondriasis is a heterogeneous disorder. This was well demonstrated in the study by Kellner et al, which showed that patients with high levels of disease fear tended to be more anxious or phobic, whereas patients with high levels of disease conviction tended to have more and more severe somatic symptoms. Little comorbidity exists to support the statement that hypochondriasis is an obsessive-compulsive spectrum disorder. Although patients exist whose hypochondriac concerns are identical in quality to the intrusive thoughts of patients with OCD, as a group, patients with hypochondriasis do not share a comorbidity profile comparable with that of patients with OCD. The data support a closer relationship between hypochondriasis and somatization disorder than between hypochondriasis and OCD. The family history data is limited by the lack of adequate studies. Using comparable methods of the family history approach, Black's study reported a higher frequency of GAD but not OCD among the relatives of OCD patients--a finding similar to what Noyes found among the relatives of hypochondriac patients; however, using the direct interview method, somatization disorder was the only statistically more common disorder, among relatives of female hypochondriac patients. Therefore, although the parallel in overlap with GAD is suggestive of a commonality between OCD, GAD, and hypochondriasis, the finding of a greater frequency of somatization disorder leans against the hypothesis that hypochondriasis is best considered an OCD spectrum disorder. The pharmacologic treatment data are the one type of biologic evidence that supports a bridge to OCD. The pharmacologic studies suggest that for patients with general hypochondriasis, TCAs are not effective and that higher dosages and longer trials of the SRIs are needed. These pharmacologic observations are comparable with the ones made for patients with OCD but dissimilar to the observations made for depression. The benefit of imipramine among patients with illness phobia must be assessed in placebo-controlled trials among illness phobics and among hypochondriacs. Even more valuable would be a direct comparison of a TCA (e.g., imipramine or desipramine) and a selective SRI (e.g., fluoxetine) to determine whether the response to selective SRIs is greater. Although the pharmacologic data are compelling in supporting the hypothesis that hypochondriasis is an obsessive-compulsive spectrum disorder, the comorbidity data are equally compelling in dispelling that hypothesis. Perhaps future studies clarify the subtypes of hypochondriasis, be they "phobic, obsessive, and depressive," "chronic and episodic," "early onset versus late onset" or some other as yet undetermined subtype. Such clarification may be aided by better instruments to assess the obsessive-compulsive and hypochondria spectrums within individuals and families and by neuropsychological or pharmacologic challenge and neuroimaging studies.

Adult↗

Tourette syndrome. Neuropsychological tests for obsessive-compulsive disorder and attention deficit hyperactivity disorder.

Recent evidence has suggested that the commonly observed comorbid behavioral disorders of Tourette syndrome, including attention deficit hyperactivity disorder and obsessive-compulsive disorder clearly have an impact on cognitive, educational, and psychosocial function. These behavioral features of Tourette syndrome can be more debilitating than the cardinal motor features of the disorder and they require careful clinical assessment so that appropriate treatment intervention can be offered to patients and their families. This article focuses on objective neuropsychological and behavioral assessment of obsessive-compulsive disorder and attention deficit hyperactivity disorder which have proven useful for both the clinical evaluation and treatment of obsessive-compulsive disorder and attention deficit hyperactivity disorder associated with Tourette syndrome and in the research setting. Instruments with proven psychometric reliability and validity for assessing obsessive-compulsive disorder and attention deficit hyperactivity disorder which also have been useful in Tourette syndrome populations are discussed. Objective and quantitative assessment of these comorbid behavioral conditions greatly enhance our ability to treat the full neurobehavioral spectrum of Tourette syndrome.

Attention Deficit Disorder with Hyperactivity↗

Obsessions and compulsions and intolerance for uncertainty in a non-clinical sample.

It has been hypothesized that decision-making difficulties in patients with obsessive-compulsive disorder may arise from intolerance for uncertainty. We investigated the relationship between obsessivity and intolerance for uncertainty (defined in terms of need for cognitive closure), controlling for state and trait anxiety and depression. We tested nonclinical subjects through the Need for Closure Scale (NFCS), the Padua Inventory Revised (PI-R), the Beck Depression Inventory (BDI), and the State-Trait Anxiety Inventory (Form-Y; STAI-Y). A principal component analysis showed a lack of correlation between the PI-R and the NFCS subscales. A set of multiple regression analyses performed on PI-R subscales showed that the need for cognitive closure cannot be considered as a strong predictor of obsessions and compulsions. These results speak against the hypothesis that people with high obsessivity have difficulties in taking decisions because of a cognitive need for certainty. We instead argue that difficulties in taking decisions may be related to other specific cognitive beliefs or meta-beliefs.

Adolescent↗

Personality traits and smoking in patients with obsessive-compulsive disorder.

As opposed to other psychiatric populations, subjects with obsessive-compulsive disorder (OCD) smoke less than the general population. The present study aims at further investigating the relationship between smoking in OCD subjects and personality traits. Sixty-four subjects with OCD were interviewed concerning their smoking habits. Personality traits were evaluated using the Karolinska Scales of Personality, and specific obsessive-compulsive personality traits were elicited through self-report questionnaires. Non-smokers were more easily fatigued, more inclined to worry, more remorseful, less self-confident, less impulsive and became uneasy more frequently when urged to speed up, than smokers with OCD. Additionally, non-smokers fulfilled significantly more obsessive-compulsive personality disorder criteria as compared to the smokers (P < 0.001). We propose a clinical subtype of OCD related to non-smoking, psychasthenia, anxiety, and pronounced obsessive-compulsive personality disorder traits.

Adult↗

The cAMP-dependent protein kinase substrate Rap1 in platelets from patients with obsessive compulsive disorder or schizophrenia.

Previous studies have reported that the cAMP-dependent protein kinase and one of its substrates, namely Rap1, are altered in patients with affective disorders. Abnormalities in the cAMP-dependent protein kinase have also been reported in platelets of patients with obsessive compulsive disorder and schizophrenia. However, it remains to be determined whether abnormalities in Rap1 are specifically related to affective disorders or may also be present in schizophrenia and obsessive compulsive disorder. Thus, we investigated Rap1 in platelets from 12 drug-free patients with obsessive compulsive disorder, ten drug-free patients with schizophrenia, and 20 healthy subjects. While no difference was observed in the levels of Rap1 between groups, the phosphorylation state of Rap1 was significantly lower in patients with obsessive compulsive disorder than in schizophrenic patients and controls. These data further support the idea that abnormalities of cAMP signalling pathway could be associated, albeit in a somewhat different way, with several psychiatric disorders.

Adult↗

Obsessive-compulsive disorder in popular magazines.

To examine what the general public is learning about Obsessive-Compulsive Disorder (OCD) through popular magazines, all articles listed in the Reader's Guide to Periodical Literature under the topic headings of "obsessive-compulsive behavior" or "obsessive-compulsive disorder" between 1983 and 1997 were read and rated. Only 31 of the 107 articles under these headings dealt explicitly with OCD, and these were found to be reasonably accurate in their presentations of symptoms, causes, and treatments. Many of the other articles under the target headings, however, focused on incidents of "stalking" of famous people by "obsessed" fans. The implications of the content patterns of these articles for understanding and misunderstanding of OCD are discussed.

Humans↗

[Obsessive-compulsive disorder, frontostriatal system and the effect of the serotonergic system].

OBJECTIVES: Focal issues of recent research on obsessive-compulsive disorders have been the involvement of the frontostriatal system in the patho-physiology, as well as the manner of effect and efficacy of the serotonin reuptake inhibitors that unfold their specific efficacy in the frontostriatal system. The course of treatment among adolescent inpatients with obsessive-compulsive disorder was analyzed with regard to the medications used and their effects upon the course of treatment. METHODS: The data for all adolescents with obsessive-compulsive disorder admitted as inpatients to the Hospital for Child and Adolescent Psychiatry and Psychotherapy in Mannheim since 01.01.1990 were analyzed with regard to medication and the parameters for course and outcome. RESULTS: Five patients dropped out of treatment, five patients received no medication, eight received sulpiride, ten were treated with clomipramine, and three with fluvoxamine. The average length of inpatient stay was longer for the groups treated with sulpiride and clomipramine than for the group that received no medication, but equivalent for these two medication groups. The success of treatment for obsessive-compulsive disorder was rated as higher in these two groups than in the group without medication. On sulpiride, patients gained weight and exhibited fatigue and increased levels of prolactin. On clomipramine, half of the patients exhibited cardiac side effects. CONCLUSIONS: This small, nonrandomized medicated sample analyzed under non-double-blind conditions shows no difference in the efficacy of clomipramine and sulpiride under post hoc analysis. Rather, the side effects that occurred in patients on clomipramine indicate a more frequent use of SSRI to increase compliance as regards medication intake.

Adolescent↗

The Children's Yale-Brown Obsessive-Compulsive Scale: item structure in an outpatient setting.

The Children's Yale-Brown Obsessive-Compulsive Scale (CY-BOCS) is one of the most popular measures of symptom severity for childhood obsessive-compulsive disorder (OCD). This study describes the factor structure of the CY-BOCS. A total of 233 children diagnosed with OCD were evaluated with the CY-BOCS. The results indicated that 2 alternate 2-factor solutions (obsessions and compulsions; severity and disturbance) fit the data set best. The results also suggested that items assessing resistance to obsessions and compulsions provide unreliable evaluations of these symptoms in children with OCD. Recommendations for modifications to the CY-BOCS as well as clinical applications and for future research with the measure are made.

Adolescent↗

Phenomenology of obsessive-compulsive disorder in Taiwan.

This study was designed to assess the phenomenology, comorbidities, correlation with depressive disorders, and gender differences in obsessive-compulsive disorder (OCD) in Taiwan. Two hundred outpatients who fulfilled the diagnostic criteria of OCD according to DSM-IV were included. Patient characteristics, age at onset, symptom profile, and Axis I comorbidity were recorded. Gender differences, age at onset, and comorbidity of depressive disorders among different subtypes of OCD were compared. The most common obsession was contamination, followed by pathological doubt, and need for symmetry. The most common compulsion was checking, followed by washing, and orderliness compulsions. More men than women presented with the obsession of need for symmetry. Eighty-three (41.5%) subjects had comorbid depressive disorders. Women had more major depressive disorder. Patients with somatic obsessions were more likely to have major depressive disorder. Most clinical characteristics of OCD in Taiwan were similar to that of previous studies in other countries.

Adolescent↗

Phenotypic differences in early- and late-onset obsessive-compulsive disorder.

Early-onset forms of many medical diseases have been associated with specific genetic anomalies. To assess the potential marker value of onset age in obsessive-compulsive disorder (OCD), we examined and compared the phenotypic characteristics of patients with early and later onset. The study sample included 38 children with DSM-IV OCD and 129 adults 19 years of age or older, 77 of whom reported OCD onset prior to age 18 and 52 of whom reported OCD onset at 18 years of age or older. DSM-IV diagnoses were ascertained for all subjects using an amended version of the Diagnostic Interview for Genetic Studies (DIGS). An initial comparison of children and adults with childhood onset revealed several differences, including an earlier onset of clinically significant symptoms without impairment and earlier onset of DSM-IV OCD, a higher frequency of learning disabilities, and fewer obsessions and compulsions among our child patients. For this reason, subsequent analyses included only adult patients with early and later OCD onset. Nonimpairing symptom onset prior to puberty, a relatively aggressive course, and a greater number of obsessions and compulsions unrelated to the amount of time in illness characterized early-onset OCD. Later-onset OCD was characterized by nonimpairing symptom onset during puberty, a static course, and relatively few obsessions and compulsions that were variably related to the amount of time in illness. We conclude that children with OCD and adults with childhood onset differ in their report of clinical characteristics and should be analyzed separately in studies concerning the phenotypic characteristics of OCD. Early- and late-onset forms of OCD appear to be characterized by phenotypic features that have important neurobiologic and perhaps genetic implications.

Adolescent↗

[Personality disorders and psychiatric comorbidity in obsessive-compulsive disorder and anorexia nervosa].

The aim of this prospective longitudinal study was to examine the course of adolescent anorexia nervosa and obsessive-compulsive disorder (OCD) (fulfilling DSM-III-R criteria) to compare psychiatric comorbidity and personality disorders of both groups. Because anorexia nervosa patients are mainly female, we compared them only with female OCD patients. Ten years after discharge the whole sample (32 female patients; 100%) of a group of 39 (32 female; 7 male) anorexia nervosa patients could be reexamined personally. 25 (61%) female patients of a group of 116 patients (41 female; 75 male) with obsessive-compulsive disorder were also reexamined. The anorexia nervosa patients were interviewed using the Structured Interview for Anorexia and Bulimia nervosa (SIAB [39]) to assess eating disorder symptomatology. To examine comorbid psychiatric disorders we used the Composite International Diagnostic Interview, WHO [44] and SCID-II [45] for personality disorders. One fourth of the patients with anorexia nervosa (AN) and 20% of the patients with obsessive-compulsive disorder had a personality disorder according to DSM-III-R. Most of them were "Cluster C"-personality disorders (AN: 28%; OCD: 20%). In the group of the female OCD patients 8% schizoid, 4% schizotype and 12% paranoid personality disorders were observed. The most prevalent psychiatric disorders were anxiety (AN: 28%; OCD: 20%) and affective disorders (AN: 16%; OCD: 16%). Our results support the view that in the course of anorexia nervosa and in obsessive-compulsive disorder there is a high prevalence of psychiatric comorbidity and "Cluster C"-personality disorders according to DSM-III-R. These results might confirm a model of a high vulnerability of the serotonergic neurotransmitter system in patients with anorexia nervosa or OCD.

Adolescent↗

[Neuropsychological findings in obsessive-compulsive disorder].

The results of neuropsychological-cognitive investigations in patients with obsessive-compulsive disorder are presented in a meta-analysis. The analysis differentiates between intelligence, attention and concentration, memory executive functions, and visual-spatial and visuo-constructive performance. Changes in intelligence are only rarely manifest in obsessive-compulsive patients, and if so, principally in the visuo-constructive field, possibly including abstract-logical processes of thinking. Similarly, they are largely normal in functions of attention and verbal memory; only complex study designs reveal deficits in comparison to control subjects. Obtained deficits in visual memory should be interpreted as being likely due to deficient visuo-perceptive and visuo-constructive performance. Executive functions have not been studied in depth and are unimpaired in most investigations. Visuo-constructive problems are observed most frequently and might best be attributed to problems in Gestalt perception. It has to be pointed out that up to now techniques and designs of investigation are, in the majority of studies, imperfect and that it seems necessary to consider the existence of subgroups of obsessive-compulsive patients with differing degrees of impairment. Prognosis and evaluation of patients with obsessive-compulsive symptomatology depend considerably on their insight into the irrelevance of their behavioural patterns and on the contents of their predominant thoughts and actions. Transferring the deficit patterns to the brain level points to (a) right hemispheric damage and (b) damage in the frontostriatal system.

Attention↗

Sexual history and quality of current relationships in patients with obsessive compulsive disorder: a comparison with two other psychiatric samples.

It has been hypothesized that sexual conflict is a causal factor in the development of obsessive compulsive disorder. This study investigated the relationship between obsessive compulsive disorder and variables related to the individual's sexual history, present life, sexual satisfaction, and marital adjustment. Of inpatient admissions, 363 who met criteria for obsessive compulsive disorder, panic disorder, and depressive disorder completed a standard history questionnaire and the Marital Adjustment Test. Findings showed that obsessive compulsive individuals cannot be distinguished from either depressive or panic disordered groups by a particular sexual history. Future studies should use measures that do not rely on patient self-report.

Adolescent↗

Effects of September 11 on patients with obsessive compulsive disorder.

Effects of the September 11, 2001 terrorist attacks in the USA were investigated in 25 patients with obsessive compulsive disorder and 27 normal controls 4-6 months after the attacks. Participants completed a 15-item questionnaire to retrospectively assess changes in mood, cognition, behavior and somatic complaints since September 11, 2001. Overall, both patients with obsessive compulsive disorder and normal controls reported minor changes in mood, behavior and somatic complaints. However, normal controls reported severe to extreme initial impact, slightly more cognitive symptoms (uncertainty about the future, intrusive recollections and greater desire to be with loved ones) and a slightly greater degree of overall impact on emotion and behavior at 1, 2 and 3 months after September 11 than did patients with obsessive compulsive disorder. Results support previous research that has found a relatively minor lasting impact of September 11 on both clinical and normal populations. Differences in cognition and coping mechanisms between normal controls and patients with obsessive compulsive disorder are proposed.

Adult↗