Pedro Gomes de Alvarenga

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OBJECTIVE To evaluate the prevalence and clinical associated factors of alcohol use disorders (AUD) comorbidity in a large clinical sample of patients with obsessive-compulsive disorder (OCD). METHODS A cross-sectional study including 630 DSM-IV OCD patients from seven Brazilian university services, comparing patients with and without AUD comorbidity. The(More)
INTRODUCTION Obsessive-compulsive disorder (OCD) is a heterogeneous condition, in which subtypes have been proposed. Previous studies suggested that gender plays a relevant role in OCD phenotypic expression. This study aimed to review the literature on gender differences in clinical, genetic or familial aspects of OCD. METHOD A conventional review was(More)
BACKGROUND Although knowledge on developmental psychiatry is fundamental for the early recognition, treatment, and prevention of mental disorders, this subject has not been incorporated into the medical curriculum or psychiatric practice in Brazil. OBJECTIVE To evaluate the effect of a short course on developmental psychiatry for undergraduate students(More)
BACKGROUND Clinical and sociodemographic findings have supported that OCD is heterogeneous and composed of multiple potentially overlapping and stable symptom dimensions. Previous neuroimaging investigations have correlated different patterns of OCD dimension scores and gray matter (GM) volumes. Despite their relevant contribution, some methodological(More)
The objective of this study is to present the rationale, methods, design and preliminary results from the High Risk Cohort Study for the Development of Childhood Psychiatric Disorders. We describe the sample selection and the components of each phases of the study, its instruments, tasks and procedures. Preliminary results are limited to the baseline phase(More)
Obesity is a chronic, progressive and prevalent disorder. Morbid obesity, in particular, is associated with numerous comorbidities and early mortality. In patients with morbid obesity, pharmacological and behavioral approaches often have limited results. Bariatric surgery is quite effective but is associated with operative failures and a non-negligible(More)
Pediatric-onset obsessive–compulsive disorder (OCD) is underdiagnosed, and many affected children are untreated. The present study seeks to evaluate the presence and the clinical impact of OCD and obsessive–compulsive symptoms (OCS) in a large sample of school-age children. In Phase I, we performed an initial screening using the Family History Screen (FHS).(More)
By comparing 51 heart disease patients with history of rheumatic fever and 46 heart disease patients with no rheumatic fever history, the authors found a higher prevalence of obsessive-compulsive symptoms in rheumatic fever subjects. This suggests that rheumatic fever activity is not a necessary condition for the expression of neuropsychiatric symptoms.
INTRODUCTION Findings suggest that obsessive-compulsive disorder (OCD) and related disorders, referred to as obsessive-compulsive spectrum disorders (OCSDs), are more common in patients with rheumatic fever (RF). OBJECTIVES To determine whether RF or Sydenham's chorea increases the probability of anxiety disorders in the relatives of individuals with RF(More)