ABSTRACT Objectives: To evaluate the predictive capacity of gestational weight gain recommendations regarding low birth weight (LBW) and neonatal macrosomia, proposed by the Institute of Medicine (IOM) and the Latin American Center of Perinatology (CLAP). Mate rials and methods: The bibliographic search was performed in PubMed, Embase (via Ovid), Cochrane Library, EBSCOhost, Sco pus, LILACS and SciELO. Methodological quality was evaluated using QUADAS 2. Results: A total of 1,192 articles were identified, only 5 articles met the inclusion criteria, no study evluated the CLAP recomendations. Sensitivity and specificity to predict LBW and macrosomia varied widely depending on which country the study took place. In the Latin American cohorts, the sensitivity for predicting LBW ranged from 62.8% to 74% and the specificity from 61.7% to 68%, while the sensitivity for predicting macrosomia was 28.8% and the specificity 43.8%. In most studies the positive predictive value was less than 25%, and the negative predictive va lue was more than 90%. Most studies had high risk of bias and applicability problems in patient selection. Conclusions: The limited methodological quality and representativeness of the studied cohorts, probable unadjusted confounding factors and modest values of sensitivity and specificity suggest the need to develop studies aimed at providing recommendations that fit the epidemiological characteristics of the Peruvian population.

RESUMEN Objetivos: Evaluar la capacidad predictiva de las recomendaciones de ganancia de peso gestacional respecto del bajo peso al nacer (BPN) y la macrosomía neonatal, propuestas por el Institute of Medicine (IOM) y el Centro Latinoamericano de Perinatología (CLAP). Materiales y métodos: La búsqueda bibliográfica se realizó en PubMed, Embase (vía Ovid), Cochrane Library, EBSCO host, Scopus, LILACS y SciELO. La calidad metodológica se evaluó utilizando QUADAS 2. Resultados: Se obtuvieron 1192 artícu los, cinco cumplieron los criterios de inclusión, ningún estudio evaluó las recomendaciones CLAP. La sensibilidad y especificidad para predecir el BPN y la macrosomía variaron largamente según el país de realización del estudio. En las cohortes de América Latina, la sensibilidad para predecir el BPN varió entre 62,8% y 74%, y la especificidad, entre 61,7% y 68%, mientras que la sensi bilidad para predecir macrosomía fue 28,8%, y la especificidad, 43,8%. En la mayoría de estudios el valor predictivo positivo fue inferior al 25%, y el valor predictivo negativo, superior al 90%. La mayoría de los estudios tuvo alto riesgo de sesgo y problemas de aplicabilidad en la selección de pacientes. Conclusiones: La limitada calidad metodológica y representatividad de las cohortes estudiadas, probables factores de confusión no ajustados y modestos valores de sensibilidad y especificidad sugieren la necesidad de desarrollar estudios para establecer recomendaciones que se ajusten a las características epidemiológicas de la población peruana.

ABSTRACT Objectives: To evaluate the predictive capacity of gestational weight gain recommendations regarding low birth weight (LBW) and neonatal macrosomia, proposed by the Institute of Medicine (IOM) and the Latin American Center of Perinatology (CLAP). Mate rials and methods: The bibliographic search was performed in PubMed, Embase (via Ovid), Cochrane Library, EBSCOhost, Sco pus, LILACS and SciELO. Methodological quality was evaluated using QUADAS 2. Results: A total of 1,192 articles were identified, only 5 articles met the inclusion criteria, no study evluated the CLAP recomendations. Sensitivity and specificity to predict LBW and macrosomia varied widely depending on which country the study took place. In the Latin American cohorts, the sensitivity for predicting LBW ranged from 62.8% to 74% and the specificity from 61.7% to 68%, while the sensitivity for predicting macrosomia was 28.8% and the specificity 43.8%. In most studies the positive predictive value was less than 25%, and the negative predictive va lue was more than 90%. Most studies had high risk of bias and applicability problems in patient selection. Conclusions: The limited methodological quality and representativeness of the studied cohorts, probable unadjusted confounding factors and modest values of sensitivity and specificity suggest the need to develop studies aimed at providing recommendations that fit the epidemiological characteristics of the Peruvian population.

RESUMEN Objetivos: Evaluar la capacidad predictiva de las recomendaciones de ganancia de peso gestacional respecto del bajo peso al nacer (BPN) y la macrosomía neonatal, propuestas por el Institute of Medicine (IOM) y el Centro Latinoamericano de Perinatología (CLAP). Materiales y métodos: La búsqueda bibliográfica se realizó en PubMed, Embase (vía Ovid), Cochrane Library, EBSCO host, Scopus, LILACS y SciELO. La calidad metodológica se evaluó utilizando QUADAS 2. Resultados: Se obtuvieron 1192 artícu los, cinco cumplieron los criterios de inclusión, ningún estudio evaluó las recomendaciones CLAP. La sensibilidad y especificidad para predecir el BPN y la macrosomía variaron largamente según el país de realización del estudio. En las cohortes de América Latina, la sensibilidad para predecir el BPN varió entre 62,8% y 74%, y la especificidad, entre 61,7% y 68%, mientras que la sensi bilidad para predecir macrosomía fue 28,8%, y la especificidad, 43,8%. En la mayoría de estudios el valor predictivo positivo fue inferior al 25%, y el valor predictivo negativo, superior al 90%. La mayoría de los estudios tuvo alto riesgo de sesgo y problemas de aplicabilidad en la selección de pacientes. Conclusiones: La limitada calidad metodológica y representatividad de las cohortes estudiadas, probables factores de confusión no ajustados y modestos valores de sensibilidad y especificidad sugieren la necesidad de desarrollar estudios para establecer recomendaciones que se ajusten a las características epidemiológicas de la población peruana.

OBJETIVO: Determinar as correlações clínicas da síndrome das pernas inquietas (SPI) em um centro brasileiro de distúrbios de sono. MÉTODOS: Foram estudados retrospectivamente 118 pacientes com SPI atendidos entre janeiro de 2004 e dezembro de 2010. As variáveis analisadas compreendiam: idade ao início da doença, sexo, raça, escolaridade, SPI primária e secundária e tratamento da SPI. RESULTADOS: Do total de pacientes estudados, 83,9% eram mulheres e a razão mulher∕homem foi de 5:1. A média de idade dos pacientes ± desvio padrão de quando iniciaram sintomas da SPI foi de 41,7±17,9 anos. Oitenta e cinco por cento dos pacientes apresentaram SPI primária. Os restantes 15% apresentaram a forma secundária, que estava associada à neuropatia periférica, anemia por deficiência de ferro, insuficiência renal crônica e doença de Parkinson. Foi introduzida medicação para SPI em 67% dos pacientes. CONCLUSÕES: A maioria dos pacientes apresentou SPI primária com início precoce da doença. Mais estudos epidemiológicos são necessários para prover informações sobre as causas secundárias de SPI no Brasil.

OBJECTIVE: To determine the clinical correlates of the restless legs syndrome (RLS) in a Brazilian sleep disorders center. METHODS: We retrospectively studied 118 patients with RLS from January, 2004, to December, 2010. The analyzed variables were: age at disease onset, gender, race, years of school instruction, primary and secondary RLS, and treatment options. RESULTS: Among the studied patients, 83.9% were women with a female/male sex ratio of 5:1. Mean age of the patients at symptom onset ± standard deviation was 41.7±17.9 years-old. The primary RLS was found in 85% of patients. The other 15% remainders consisted of secondary forms, and they were associated with neuropathy, iron deficiency anemia, end-stage renal disease, or Parkinson's disease. Drug therapy for RLS was introduced in 67% of patients. CONCLUSIONS: Most patients presented primary RLS with an early disease onset. Further epidemiological studies are welcomed to provide better information on secondary RLS in Brazil.

INTRODUÇÃO: A relação entre AVC e infecção pelo vírus da imunodeficiência humana (HIV) pode ser atribuída em alguns casos a uma vasculopatia subjacente, assim como ocorre nas dissecções arteriais cervicais espontâneas. RELATO DO CASO: Relatamos o caso de um paciente com infecção pelo HIV que desenvolveu uma síndrome de Wallemberg devido a dissecção da artéria vertebral. Os exames laboratoriais revelaram aumento da homocisteina sérica e proteína C reativa. CONCLUSÃO: Este é o primeiro caso na literatura descrevendo a associação entre dissecção arterial e infecção pelo HIV. Sugerimos que o diagnóstico de dissecção arterial deve ser lembrado como um possível mecanismo de AVC isquêmico em pacientes com infecção pelo HIV.

BACKGROUND: The relationship between human immunodeficiency virus infection and stroke may be attributed in some cases to an underlying vasculopathy such as in spontaneous cervical arteries dissections. CASE REPORT: We report the case of an HIV-infected patient who developed a Wallemberg's syndrome due to a vertebral artery dissection. Screening laboratory exams showed hyperhomocysteinemia and also high C-reactive protein plasma levels. CONCLUSIONS: This is the first case describing the association between arterial dissection (AD) and HIV-infection. We suggest that AD should also be remembered as a possible mechanism of ischemic stroke in HIV-infected patients.

OBJETIVO: Analisar os aspectos demográficos da população em estudo, o tempo decorrido desde o início da queixa de cefaléia até a busca pelo serviço, assim como o diagnóstico das cefaléias primárias e secundárias. MÉTODO: 3328 pacientes foram analisados retrospectivamente de acordo com sexo, idade, raça, escolaridade, tempo decorrido entre o início da cefaléia e a busca ao médico e diagnóstico (ICHD-II, 2004). RESULTADOS: A razão Mulher/Homem foi 4:1, ambos com média de idade 40,7±15anos, não havendo diferença significativa entre os sexos. Aproximadamente 65% dos pacientes eram brancos e 55% tinha menos de 8 anos de escolaridade. A duração da queixa de cefaléia até a primeira consulta foi de 1 a 5 anos em 32,99% dos pacientes. Os diagnósticos mais prevalentes foram: migrânea (37,98%), cefaléia do tipo tensional-CTT (22,65%) e cefaléia em salvas (2,73%). CONCLUSÃO: Existem poucos dados epidemiológicos de pacientes atendidos em serviços terciários, principalmente em países subdesenvolvidos. De acordo com a literatura, a migrânea foi mais prevalente que a CTT. Também é relevante observar a baixa escolaridade da população, assim como o grande tempo de espera até a primeira consulta. Um número incomum de pacientes com síndrome de cefaléia hípnica foi observado na amostra.

OBJECTIVE: To analyze the demographic features of the population sample, the time of headache complaint until first consultation and the diagnosis of primary and secondary headaches. METHOD: 3328 patients were analyzed retrospectively and divided according to gender, age, race, school instruction, onset of headache until first consultation and diagnosis(ICHD-II, 2004). RESULTS: Sex ratio (Female/Male) was 4:1, and the mean age was 40.7±15 years, without statistical differences between sexes. Approximately 65% of the patients were white and 55% had less than eight years of school instruction. Headache complaint until first consultation ranged from 1 to 5 years in 32.99% patients. The most prevalent diagnosis were migraine (37.98%), tension-type headache-TTH (22.65%) and cluster headache (2.73%). CONCLUSION: There are few data on epidemiological features of headache clinic populations, mainly in developing countries. According to the literature, migraine was more frequent than TTH. It is noteworthy the low school instruction of this sample and time patient spent to seek for specialized attention. Hypnic headache syndrome was seen with an unusual frequency.