[Club drugs]. / Club drugs: Um Novo Perfil de Abuso de Substâncias em Adolescentes e Jovens Adultos.

Club drugs are the following substances: Methylenedioxymethamphetamine (MDMA); Methamphetamine; Lysergic Acid Diethylamide (LSD); Ketamine; Gamma-hydroxybutyrate (GHB) and Flunitrazepam. These substances are mainly used by adolescents and young adults, mostly in recreational settings like dance clubs and rave parties. These drugs have diverse psychotropic effects, are associated with several degrees of toxicity, dependence and long term adverse effects. Some have been used for several decades, while others are relatively recent substances of abuse. They have distinct pharmacodynamic and pharmacokinetic properties, are not easy to detect and, many times, the use of club drugs is under diagnosed. Although the use of these drugs is increasingly common, few health professionals feel comfortable with the diagnosis and treatment. The authors performed a systematic literature review, with the goal of synthesising the existing knowledge about club drugs, namely epidemiology, mechanism of action, detection, adverse reactions and treatment. The purpose of this article is creating in Portuguese language a knowledge data base on club drugs, that health professionals of various specialties can use as a reference when dealing with individual with this kind of drug abuse.

[Effectivity of screening, concepts and attitudes towards metabolic síndrome: a study in bipolar patients followed in Hospital Santa Maria psychiatric consultation]. / Efectividade do rastreio, análise de conceitos e atitudes perante o síndrome metabólico: um estudo em doentes bipolares da consulta de psiquiatria do Hospital Santa Maria.

INTRODUCTION: The Metabolic Syndrome (MS) is constituted by a set of specific metabolic alterations being postulated that the main dysfunction is insulin resistance, associated with abdominal type obesity, hypertension, hyperglycemia and dyslipidemia. Epidemiological data indicates prevalence of MS of about 25%. Estimates point to higher prevalence of MS in bipolar (BP) patients, between 30 to 35%. Cost-effective screening methods, not recurring to blood test, have been researched. OBJECTIVES: Test the viability of MS screening without using blood tests. Analyse knowledge and importance given to the issue of MS in Bipolar patients. METHODOLOGY: Observational, cross-sectional, exploratory study. Random sample of 15 BP patients, in euthymic phase, between 18 and 65 years. Semi-structured interview, YMRS, HAMD were applied. MS diagnosis was investigated according to the International Diabetes Federation (IDF), including blood tests. Screening of MS was defined positive if blood pressure > or = to 130/85 or on anti-hypertensive medication and Abdominal Perimeter > 90 cm in males or > 80 cm in females. Afterwards a questionnaire about knowledge, attitudes and concerns on MS was applied. MAIN RESULTS: 14 patients completed the investigation protocol, 1 patient didn't do blood testing for unknown reasons. Five patients (36%) met IDF criteria for MS. Screening sensitivity was 80% and specificity 78% on our sample (1 false positive and 2 false negative). Twelve patients (80%) were overweight or obese. Mean IMC in patients that met IDF criteria for MS was 30 while in the other group mean IMC was 26, showing statistical significance. Only 3 (20%) have ever heard about MS, but the majority of the patients were concerned, in decreasing order, about weight gain, blood pressure cholesterol and hyperglycemia control. CONCLUSIONS: Although limited by small sample size, this study strengthens the idea that MS screening can be effective in clinical practice, it also indicates the need to educate BP patients about MS and to prevent overweight.

Clinical features of adolescents with deliberate self-harm: A case control study in Lisbon, Portugal.

Deliberate self-harm (DSH) among adolescents is a high-risk condition for suicide. The aim of the present study is to describe the characteristic clinical features of adolescents with DSH according to our local context (Lisbon, Portugal), using easily available information from clinical settings. A case control study was constructed from a sample of 100 adolescents (aged 12 to 21 years). The sample was divided into two groups: adolescents with and without DSH. Case files were examined and data was completed by clinical interviews. Demographic, psychosocial, and psychopathological data were assessed and compared. Ninety-eight subjects completed the protocol. The DSH group was associated with the following: suicidal ideation or suicidal behavior as consultation motive, emergency room referral, previous follow-up attempts, suicidal ideation, psychosocial difficulties, or lack of therapeutic goals. There was a nonsignificant trend towards diagnosis of depression in the DSH group. These results reflect our clinical practice with adolescents and add data about teenagers who self-harm to the literature. Prevention and early recognition of DSH (and frequently associated depression) in adolescents are essential and could be life-saving measures. An integrated approach, which takes into account psychosocial difficulties, family dysfunction, and negative expectations, seems to be of great importance.

[Liaison psychiatry in a general hospital: seven paradigmatic cases]. / Psiquiatria de ligação em hospital geral: sete casos paradigmáticos.

Through the use of case reports, this article reviews frequent causes that origin the need for psychiatric intervention in patients hospitalized in medical and surgical wards. Particular diagnosis aspects are focused, so is the necessity of integration of the biological, psychological and social dimensions of the patient. The integrated approach by the various members of the medical staff is also emphasised. The cases presented were observed in the Liaison Psychiatry Consult of the Psychiatry Service of Hospital Santa Maria, in Lisbon, between November 2007 and January 2008. Seven cases were selected because they reflect paradigms in the intervention of the Liaison Psychiatrist, and reflect the following psychiatric diagnosis: Panic Disorder; Paranoid Schizophrenia; Bipolar Disorder; Personality Disorder; Major Depression, Dementia and Abstinence Syndrome.

Hemispheric asymmetry in resting motor threshold in major depression.

OBJECTIVES: Previous studies of repetitive transcranial magnetic stimulation suggest a hemispheric imbalance in patients with major depression. These studies report an antidepressant effect by activation of the left prefrontal cortex or inhibition of the right prefrontal cortex. The aim of this study is to investigate interhemispheric differences in cortical excitability in a large sample of patients with major depression. METHODS: The resting motor threshold (RMT) was measured on 91 patients with treatment-resistant major depression. We controlled for current medication use, gender, age, handedness, and study site. RESULTS: There was no significant difference between the left RMT (55.96 [10.356]) and the right (57.74 [11.359]) (P = 0.131, Wilcoxon matched-pairs test). A multivariate analysis found no significant association between depression scores and right or left RMT. After adjusting for important cofactors, benzodiazepine use was found to be a significant predictor of left RMT (P = 0.017, linear regression) and right RMT (P = 0.007, linear regression). CONCLUSION: Our results do not support the existence of an interhemispheric imbalance of cortical excitability in depressed patients. Benzodiazepine use was found to raise both the left and right RMT.

The effect of daily prefrontal repetitive transcranial magnetic stimulation over several weeks on resting motor threshold.

BACKGROUND: The resting motor threshold (rMT) is an important factor in the selection of treatment intensity for patients receiving repetitive transcranial magnetic stimulation (rTMS). In many clinical studies to date, due to concerns about potential drift, the rMT has been routinely re-measured weekly or every fifth session. OBJECTIVE: Our aim is to investigate whether ongoing treatment with rTMS affects the rMT, the degree of change, and whether frequent remeasurement is needed. METHODS: Clinical data were drawn from 50 medication free patients receiving treatment for major depression with rTMS in a large U.S. NIH-sponsored multisite study. Four measurements of rMT were obtained including before and after the double blind phase, followed by weekly measurements during the open phase. Active treatment consisted of 75 four second trains of 10Hz stimulation applied over 37.5 minutes with the coil over the left DLPFC at 120% rMT. RESULTS: For the group as a whole, there was no significant change in the rMT during a minimum of 2 weeks of treatment with prefrontal rTMS (p=0.911, one way ANOVA). The average within-subject coefficient of variation was 6.58%. On average the last rMT was 2.45% less than the baseline rMT (range 32.3% increase, 40.6% decrease). CONCLUSION: Daily left prefrontal rTMS over several weeks as delivered in this trial does not cause systematic changes in rMT. While most subjects had <10% variance in rMT over time, 5 subjects had changes of approximately 20% from baseline, raising dosing and safety issues if undetected. We recommend that clinical trials of rTMS have periodic retesting of rMT, especially if the dose is at or near the edge of the TMS safety tables.

Fenotipos y genotipos del sistema Lutheran (LU) en Costa Rica / Phenotypes and genotypes of the Lutheran system in Costa Rica

Se analizaron 427 muestras de sangre para investigar las frecuencias de los genes, genotipos y fenotipos del sistema Lutheran en Costa Rica. Se encontró una frecuencia del 93,45 por ciento para el fenotipo Lu (a-b+), del 6,32 por ciento para Lu (a+b+) y de 0,23 por ciento para Lu (a+b). Esto implica una frecuencia alélica de 0,034 para Lu a(p) y de 0,966 para Lub(q). La distribución observada nos indica que este sistema tiene en este país muy poca importancia clínica y médicolegal debido a la prevalencia polarizada de sus alelos