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11.

Purpose

Dimensional approaches are likely to advance understanding of human behaviors and emotions. Nevertheless, it is unclear whether instruments in psychiatry capture variability at the full spectrum of these dimensions. We aimed to investigate this issue for two scales assessing distinct aspects of social functioning: the Social Aptitudes Scale (SAS), a “bidirectional” scale constructed to investigate both “ends” of social functioning; and the social Child Behavior Checklist (CBCL-social), a “unidirectional” scale constructed to assess social problems.

Methods

We investigated 2512 children and adolescents aged 6–14. Item response theory was used to investigate on which range of the trait each scale captures information. We performed quantile regressions to investigate if correlations between SAS and CBCL-social vary within different levels of social aptitudes dimension and multiple logistic regressions to investigate associations with negative and positive clinical outcomes.

Results

SAS was able to provide information on the full range of social aptitudes, whereas CBCL-social provided information on subjects with high levels of social problems. Quantile regressions showed SAS and CBCL-social have higher correlations for subjects with low social aptitudes and non-significant correlations for subjects with high social aptitudes. Multiple logistic regressions showed that SAS was able to provide independent clinical predictions even after adjusting for CBCL-social scores.

Conclusions

Our results provide further validity to SAS and exemplify the potential of “bidirectional” scales to dimensional assessment, allowing a better understanding of variations that occur in the population and providing information for children with typical and atypical development.
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OBJECTIVE: This study aims to investigate the effect of sociodemographic and clinical features on the short-term response to pharmacological treatment in obsessive-compulsive disorder (OCD). We focused especially on investigating factors previously associated with poorer prognosis, such as comorbidity with tic disorders, early onset of symptoms, and sensory phenomena preceding compulsions, which have been described as common in both tic-related and early-onset OCD. METHOD: The study involved 41 consecutive adult patients with OCD diagnosed according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria and was conducted at the OCD Spectrum Disorders Clinic of the University of Sao Paulo School of Medicine in S?o Paulo, Brazil, between January of 2000 and December of 2001. All patients were treated exclusively with oral clomipramine for 14 weeks. Treatment response, measured for Yale-Brown Obsessive-Compulsive Scale score decrease from baseline, was assessed by an investigator blinded as to the variables of interest present. RESULTS: Linear regression analysis showed that having a partner and sensory phenomena preceding compulsions were associated with better response to clomipramine treatment (P = .04 and P = .002, respectively). Tic comorbidity and early onset of symptoms were not associated with poorer response. CONCLUSIONS: In OCD, having a partner and sensory phenomena preceding compulsions seem to be associated with a favorable response to pharmacological treatment.  相似文献   
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BackgroundFactor analyses indicate that hoarding symptoms constitute a distinctive dimension of obsessive-compulsive disorder (OCD), usually associated with higher severity and limited insight. The aim was to compare demographic and clinical features of OCD patients with and without hoarding symptoms.MethodA cross sectional study was conducted with 1001 DSM-IV OCD patients from the Brazilian Research Consortium of Obsessive-Compulsive Spectrum Disorders (CTOC), using several instruments. The presence and severity of hoarding symptoms were determined using the Dimensional Yale-Brown Obsessive-Compulsive Scale. Statistical univariate analyses comparing factors possibly associated with hoarding symptoms were conducted, followed by logistic regression to adjust the results for possible confounders.ResultsApproximately half of the sample (52.7%, n = 528) presented hoarding symptoms, but only four patients presented solely the hoarding dimension. Hoarding was the least severe dimension in the total sample (mean score: 3.89). The most common lifetime hoarding symptom was the obsessive thought of needing to collect and keep things for the future (44.0%, n = 440). After logistic regression, the following variables remained independently associated with hoarding symptoms: being older, living alone, earlier age of symptoms onset, insidious onset of obsessions, higher anxiety scores, poorer insight and higher frequency of the symmetry-ordering symptom dimension. Concerning comorbidities, major depressive, posttraumatic stress and attention deficit/hyperactivity disorders, compulsive buying and tic disorders remained associated with the hoarding dimension.ConclusionOCD hoarding patients are more likely to present certain clinical features, but further studies are needed to determine whether OCD patients with hoarding symptoms constitute an etiologically discrete subgroup.  相似文献   
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BackgroundPatients with obsessive-compulsive disorder (OCD) frequently show poor social adjustment, which has been associated with OCD severity. Little is known about the effects that age at symptom onset, specific OCD symptoms, and psychiatric comorbidities have on social adjustment. The objective of this study was to investigate the clinical correlates of social functioning in OCD patients.MethodsCross-sectional study involving 815 adults with a primary DSM-IV diagnosis of OCD participating in the Brazilian Research Consortium on Obsessive-Compulsive Spectrum Disorders. Patients were assessed with the Social Adjustment Scale, the Medical Outcomes Study 36-item Short-Form Health Survey, the Yale-Brown Obsessive-Compulsive Scale, the Dimensional Yale-Brown Obsessive-Compulsive Scale, and the Structured Clinical Interview for DSM-IV Axis I Disorders. Clinical correlates of social adjustment were assessed with generalized linear models with gamma distribution.ResultsPoor overall social functioning was associated with greater OCD severity (p = 0.02); hoarding symptoms (p = 0.004); sexual/religious obsessions (p = 0.005); current major depressive disorder (p = 0.004); current post-traumatic stress disorder (p = 0.002); and current eating disorders (p = 0.02). Poor social adjustment was also associated with impaired quality of life.ConclusionsPatients with OCD have poor social functioning in domains related to personal relationships and professional performance. Hoarding symptoms and sexual/religious obsessions seem to have the strongest negative effects on social functioning. Early age at OCD symptom onset seems to be associated with professional and academic underachievement and impairment within the family unit, whereas current psychiatric comorbidity worsen overall social functioning. In comparison with quality of life, social adjustment measures seem to provide a more comprehensive overview of the OCD-related burden.  相似文献   
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Hypoglycemia is a well recognized cause of acute symptomatic seizures. The fact that hypoglycemia can cause peripheral neuropathy is less appreciated. We describe a case of insulinoma associated peripheral neuropathy. A 17 year-old previously healthy man was referred for investigation of refractory epilepsy. A history of recurrent seizures, slowly progressive weakness of his feet and hands, and weight gain was obtained. Physical examination showed signs of a chronic sensory-motor polyneuropathy. He was diagnosed with insulinoma and primary hyperparathyroidism, characterizing multiple endocrine neoplasia, type 1 syndrome. Cases of insulinoma associated peripheral neuropathy are very rare. The more characteristic clinical picture appears to be distal weakness, worse in the intrinsic hand and feet muscles, and no or mild sensory signs. Peripheral nervous system symptoms may not completely resolve, despite removal of the cause of hyperinsulinism/hypoglycemia and full reversion of central nervous system symptoms. Mechanisms underlying hypoglycemic neuropathy are still poorly understood.  相似文献   
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茶碱类药物在治疗哮喘及慢性阻塞性肺疾病中的作用   总被引:68,自引:1,他引:68  
茶碱类药物在治疗哮喘及慢性阻塞性肺疾病中的作用钟南山徐军茶碱用以治疗哮喘及慢性阻塞性肺疾病(COPD)已达半世纪之久。过去使用茶碱是基于其对支气管平滑肌的直接舒张作用,但此种舒张作用一般需在其血浆浓度达到10mg/L以上方较明显。而这个血浆浓度已接近...  相似文献   
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Responses to pharmacotherapy and psychotherapy in obsessive-compulsive disorder (OCD) range from 60 to 80% of cases. However, a subset of OCD patients do not respond to adequately conducted treatment trials, leading to severe psychosocial impairment. Stereotactic surgery can be indicated then as the last resource. Five surgical techniques are available, with the following rates of global post-operative improvement: anterior capsulotomy (38-100%); anterior cingulotomy (27-57%); subcaudate tractotomy (33-67%); limbic leucotomy (61-69%), and central lateral thalamotomy/anterior medial pallidotomy (62.5%). The first technique can be conducted as a standard neurosurgery, as radiosurgery or as deep brain stimulation. In the standard neurosurgery neural circuits are interrupted by radiofrequency. In radiosurgery, an actinic lesion is provoked without opening the brain. Deep brain stimulation consists on implanting electrodes which are activated by stimulators. Literature reports a relatively low prevalence of adverse events and complications. Neuropsychological and personality changes are rarely reported. However, there is a lack of randomized controlled trials to prove efficacy and adverse events/complication issues among these surgical procedures. Concluding, there is a recent development in the neurosurgeries for severe psychiatric disorders in the direction of making them more efficacious and safer. These surgeries, when correctly indicated, can profoundly alleviate the suffering of severe OCD patients.  相似文献   
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