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The general population and workers are exposed to organophosphate insecticides, one of the leading chemical classes of pesticides used in rural and urban areas. This paper aims to conduct an integrative review of the most used analytical methods for identifying and quantifying dialkylphosphate-which are metabolites of organophosphate insecticides-in the urine of exposed workers, discussing their advantages, limitations and applicability. Searches utilized the PubMed, the Scientific Electronic Library Online and the Brazilian Digital Library of Theses and Dissertations databases between 2000 and 2021. Twenty-five studies were selected. The extraction methods most used were liquid-liquid extraction (LLE) (36%) and solid-phase extraction (SPE) (36%), with the SPE being more economical in terms of time and amount of solvents needed, and presenting the best percentage of recovery of analytes, when compared with LLE. Nineteen studies (76%) used the gas chromatography method of separation, and among these, 12 records (63%) indicated mass spectrometry used as a detection technology (analyzer). Studies demonstrate that dialkylphosphates are sensitive and representative exposure biomarkers for environmental and occupational organophosphate exposure.

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The general population and workers are exposed to organophosphate insecticides, one of the leading chemical classes of pesticides used in rural and urban areas, in the control of arboviruses and agriculture. These pesticides cause environmental/occupational exposure and associated risks to human and environmental health. The objective of this study was to carry out an integrative review of epidemiological studies that identified and quantified dialkylphosphate metabolites in the urine of exposed populations, focusing on the vector control workers, discussing the application and the results found. Searches utilized the Pubmed, Scielo, and the Brazilian Digital Library of Theses and Dissertations (BDTD) databases between 2000 and 2021. From the 194 selected studies, 75 (39%) were with children/adolescents, 48 (24%) with rural workers, 36 (19%) with the general population, 27 (14%) with pregnant women, and 9 (4%) with vector control workers. The total dialkylphosphate concentrations found in the occupationally exposed population were higher than in the general population. Studies demonstrate that dialkylphosphates are sensitive and representative exposure biomarkers for environmental and occupational organophosphate exposure. The work revealed a lack of studies with vector control workers and a lack of studies in developing countries.

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RESUMO Objetivo Comparar o tempo de transição alimentar e a forma de alimentação por via oral na alta hospitalar, entre recém-nascidos prematuros com diagnóstico de displasia broncopulmonar e prematuros sem o diagnóstico. Métodos Estudo transversal, retrospectivo com base na coleta de dados nos prontuários. Foram coletados dados de 78 recém-nascidos, em uma maternidade de referência. A amostra foi estratificada em dois grupos, de acordo com a presença do diagnóstico de displasia broncopulmonar, sendo um grupo de prematuros com displasia broncopulmonar e outro sem. Foram analisados o tempo de transição alimentar e o método de alimentação na alta hospitalar de ambos os grupos. Resultados Houve diferença significativa no tempo de transição alimentar e no método de alimentação na alta hospitalar entre os grupos. Os recém-nascidos pré-termo com displasia broncopulmonar apresentaram média de 18,03 (± 5,5) dias de transição e saíram em uso de mamadeira. Conclusão O grupo com displasia broncopulmonar necessitou de maior tempo de transição alimentar e teve menor frequência de aleitamento materno exclusivo, em relação ao grupo sem o diagnóstico.

ABSTRACT Purpose To compare the time of food transition and the form of oral feeding at hospital discharge, between premature newborns diagnosed with bronchopulmonary dysplasia and premature newborns without the diagnosis. Methods Cross-sectional, retrospective study based on data collection from medical records. Data were collected from 78 newborns, in a reference maternity hospital, in which the sample was stratified into two groups according to the presence or absence of the diagnosis of bronchopulmonary dysplasia. The time of food transition and the feeding method at hospital discharge were analyzed for both groups. Results There was a significant difference in the time of food transition and in the feeding method at hospital discharge between the groups. Preterm newborns with bronchopulmonary dysplasia had an average of 18.03 (± 5.5) transition days and left using a bottle. Conclusion The group with bronchopulmonary dysplasia required a longer time of food transition and fewer ( of its ) infants had exclusive breastfeeding compared to the group without the diagnosis.

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BACKGROUND: Acute kidney injury (AKI) is a frequent complication during the postoperative period following liver transplantation. Occurrence of AKI in intensive care unit (ICU) patients is associated with increased mortality and higher costs. OBJECTIVE: To evaluate occurrences of moderate or severe AKI among patients admitted to the ICU after liver transplantation and investigate characteristics associated with this complication. DESIGN AND SETTING: Single-center retrospective cohort study in a public hospital, Belo Horizonte, Brazil. METHODS: Forty-nine patients admitted to the ICU between January 2015 and April 2017 were included. AKI was defined from a modified Kidney Disease Improving Global Outcomes (KDIGO) score (i.e. based exclusively on serum creatinine levels). RESULTS: Eighteen patients (36.7%) developed AKI KDIGO 2 or 3; mostly KDIGO 3 (16 out of the 18 patients). Lactate level within the first six hours after ICU admission (odds ratio, OR: 1.3; 95% confidence interval, CI: 1.021-1.717; P = 0.034) and blood transfusion requirement within the first week following transplantation (OR: 8.4; 95% CI: 1.687-41.824; P = 0.009) were independently associated with development of AKI. Patients with AKI KDIGO 2 or 3 underwent more renal replacement therapy (72.2% versus 3.2%; P < 0.01), had longer hospital stay (20 days versus 15 days; P = 0.001), higher in-hospital mortality (44.4% versus 6.5%; P < 0.01) and higher mortality rate after one year (44.4% versus 9.7%; P = 0.01). CONCLUSION: Need for blood transfusion during ICU stay and hyperlactatemia within the first six postoperative hours after liver transplantation are independently associated with moderate or severe AKI. Developing AKI is apparently associated with poor outcomes.

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ABSTRACT BACKGROUND: Acute kidney injury (AKI) is a frequent complication during the postoperative period following liver transplantation. Occurrence of AKI in intensive care unit (ICU) patients is associated with increased mortality and higher costs. OBJECTIVE: To evaluate occurrences of moderate or severe AKI among patients admitted to the ICU after liver transplantation and investigate characteristics associated with this complication. DESIGN AND SETTING: Single-center retrospective cohort study in a public hospital, Belo Horizonte, Brazil. METHODS: Forty-nine patients admitted to the ICU between January 2015 and April 2017 were included. AKI was defined from a modified Kidney Disease Improving Global Outcomes (KDIGO) score (i.e. based exclusively on serum creatinine levels). RESULTS: Eighteen patients (36.7%) developed AKI KDIGO 2 or 3; mostly KDIGO 3 (16 out of the 18 patients). Lactate level within the first six hours after ICU admission (odds ratio, OR: 1.3; 95% confidence interval, CI: 1.021-1.717; P = 0.034) and blood transfusion requirement within the first week following transplantation (OR: 8.4; 95% CI: 1.687-41.824; P = 0.009) were independently associated with development of AKI. Patients with AKI KDIGO 2 or 3 underwent more renal replacement therapy (72.2% versus 3.2%; P < 0.01), had longer hospital stay (20 days versus 15 days; P = 0.001), higher in-hospital mortality (44.4% versus 6.5%; P < 0.01) and higher mortality rate after one year (44.4% versus 9.7%; P = 0.01). CONCLUSION: Need for blood transfusion during ICU stay and hyperlactatemia within the first six postoperative hours after liver transplantation are independently associated with moderate or severe AKI. Developing AKI is apparently associated with poor outcomes.

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PURPOSE: To characterize the transition from alternative feeding methods to oral feeding, to investigate techniques to favor feeding used during the transition, and the prevalence of breastfeeding at hospital discharge of premature newborns. METHODS: The following variables were considered: gender, gestational age and birth weight, classification of prematurity, time of transition to oral use, corrected gestational age and newborn weight at the beginning and end of the food transition, transition technique used, length of hospitalization and type of breastfeeding at discharge. For data analysis, the software SPSS version 25.0 was used considering the significance level of 5%. RESULTS: Significant results were observed between the premature groups for corrected gestational age at the beginning of the food transition, transition time, and hospital days. CONCLUSION: The study concludes that the breast-probe technique was the most used. The length of hospital stay was shorter for the group of late and moderate preterm newborns. The transition time to the oral route was longer in the group of very preterm infants. Moreover, the proportion of exclusive breastfeeding at hospital discharge was similar between the prematurity classification groups.

OBJETIVO: Caracterizar a transição alimentar da via alternativa para via oral, investigar as técnicas para favorecer a alimentação e a prevalência de aleitamento materno na alta hospitalar de recém-nascidos prematuros. MÉTODO: Estudo observacional, longitudinal e prospectivo desenvolvido numa maternidade. Amostra foi composta por 52 recém-nascidos prematuros e estratificada entre os grupos de prematuridade tardio, moderado e muito pré-termo. Consideraram-se as variáveis: gênero, idade gestacional e peso de nascimento, classificação da prematuridade, tempo de transição para via oral, idade gestacional corrigida e peso do recém-nascido no início e final da transição alimentar, técnica de transição utilizada, tempo de internação hospitalar e tipo de aleitamento no momento da alta. A análise estatística foi realizada com o Software SPSS, versão 25.0. Considerou-se o nível de significância de 5%. RESULTADOS: Foram observados resultados significativos entre os grupos com relação à idade gestacional corrigida no início da transição alimentar, tempo de transição alimentar da via alternativa para via oral e dias de internação. CONCLUSÃO: O estudo conclui que a técnica sonda-peito foi a mais utilizada. O tempo de internação foi menor para o grupo de recém-nascidos pré-termo tardio e moderado. O tempo de transição alimentar para via oral maior no grupo de prematuros muito pré-termo e a proporção do aleitamento materno exclusivo na alta hospitalar foi semelhante entre os grupos de classificação da prematuridade.

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Cavernous malformations (CM) affect approximately 0.5% of the population, with only a limited portion being located in the optic nerve and chiasma. The clinical presentation is determined by their locations. In the optochiasmatic CM, the acute visual disturbance is the most common presentation. Chronically, many show a progressive visual loss, chronic headache, and pituitary disturbances. The differential diagnosis includes optic glioma, arteriovenous malformations, aneurysm, craniopharyngioma, pituitary apoplexy, and inflammatory conditions. In Video 1, we present the case of a 39-year-old woman with a history of a hemorrhagic optochiasmatic cavernoma in 2016, who started using propranolol to reduce the lesion and symptoms of visual loss. Moreover, the first microsurgical resection of the cavernoma and evacuation of the hematoma were performed in the same year. Owing to evolvement from a partial to a total vision loss in the left eye and presentation of new symptoms in the right eye, the patient underwent microsurgical resection. The surgery was performed sequentially. An awake craniotomy was performed to monitor the chiasma and right optic nerve. The postoperative magnetic resonance imaging showed complete resection of the CM, and the patient fully recovered. The patient signed the institutional consent form, stating that he or she accepts the procedure and allows the use of his or her images and videos for any type of medical publications in conferences and/or scientific articles.

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RESUMO Objetivo Caracterizar a transição alimentar da via alternativa para via oral, investigar as técnicas para favorecer a alimentação e a prevalência de aleitamento materno na alta hospitalar de recém-nascidos prematuros. Método Estudo observacional, longitudinal e prospectivo desenvolvido numa maternidade. Amostra foi composta por 52 recém-nascidos prematuros e estratificada entre os grupos de prematuridade tardio, moderado e muito pré-termo. Consideraram-se as variáveis: gênero, idade gestacional e peso de nascimento, classificação da prematuridade, tempo de transição para via oral, idade gestacional corrigida e peso do recém-nascido no início e final da transição alimentar, técnica de transição utilizada, tempo de internação hospitalar e tipo de aleitamento no momento da alta. A análise estatística foi realizada com o Software SPSS, versão 25.0. Considerou-se o nível de significância de 5%. Resultados Foram observados resultados significativos entre os grupos com relação à idade gestacional corrigida no início da transição alimentar, tempo de transição alimentar da via alternativa para via oral e dias de internação. Conclusão O estudo conclui que a técnica sonda-peito foi a mais utilizada. O tempo de internação foi menor para o grupo de recém-nascidos pré-termo tardio e moderado. O tempo de transição alimentar para via oral maior no grupo de prematuros muito pré-termo e a proporção do aleitamento materno exclusivo na alta hospitalar foi semelhante entre os grupos de classificação da prematuridade.

ABSTRACT Purpose To characterize the transition from alternative feeding methods to oral feeding, to investigate techniques to favor feeding used during the transition, and the prevalence of breastfeeding at hospital discharge of premature newborns. Methods The following variables were considered: gender, gestational age and birth weight, classification of prematurity, time of transition to oral use, corrected gestational age and newborn weight at the beginning and end of the food transition, transition technique used, length of hospitalization and type of breastfeeding at discharge. For data analysis, the software SPSS version 25.0 was used considering the significance level of 5%. Results Significant results were observed between the premature groups for corrected gestational age at the beginning of the food transition, transition time, and hospital days. Conclusion The study concludes that the breast-probe technique was the most used. The length of hospital stay was shorter for the group of late and moderate preterm newborns. The transition time to the oral route was longer in the group of very preterm infants. Moreover, the proportion of exclusive breastfeeding at hospital discharge was similar between the prematurity classification groups.

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Cerebral cavernous malformations, also known as cavernomas, are vascular abnormalities of the brain that are clinically associated with a variety of neurologic symptoms that may include hemorrhagic strokes. They are the most common vascular abnormality, representing 10%-25% of all vascular malformations.1 Lesions associated with cavernomas include developmental venous anomalies, capillary telangiectasias, and other vascular malformations2 but not intracranial aneurysms. The latter association is extremely rare; in fact, there is only 1 case reported in the literature, in which the cavernoma was obscured by the presence of a cerebral hemorrhage and an unruptured aneurysm, which was presumed to be the primary cause of the bleeding, thereby misleading the surgeons to treat only the aneurysm.2 There are different alternatives for the management of different types of lesions.3-5 In this 3-dimensional operative video (Video 1), we present a case of a cavernoma associated with hemorrhage coexisting with an unruptured aneurysm in which we achieved complete resolution of both with microsurgical treatment through a pterional approach.6 The patient consented to publication of images.

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OBJECTIVES: To map the number and geospatial distribution of Brazilian long-term care facilities (LTCFs) for older adults. Additionally, we sought to highlight the relationship between these findings and the number of older people in the country's 27 Federation Units, demonstrating the growth of these facilities in the last decade. METHODS: This is a descriptive observational study, using secondary data, which was performed in 3 stages: 1) searching and consolidating national and subnational data from different sources and mapping LTCFs; 2) preparing a geospatial map using Brazilian postal codes; and 3) triangulating the number of facilities and of older people in each state and all 5 Brazilian regions. RESULTS: We found 7029 LTCFs in the country, mostly in the Southeast and South regions: São Paulo, Minas Gerais and Rio Grande do Sul had the highest numbers of facilities while states in the North region represented only 1.12% of Brazilian LTCFs. Geospatial mapping highlighted that 64% of the 5 570 Brazilian municipalities did not have any LTCFs for older adults. CONCLUSIONS: We observed a large difference between Brazilian regions regarding the provision of long-term care.

OBJETIVOS: Mapeamento do número e distribuição geoespacial das Instituições de Longa Permanência para idosos (ILPI) brasileiras. Além disso, procuramos destacar a relação entre estes resultados e o número de pessoas idosas nas 27 unidades de da federação, exibindo o crescimento dessas instalações na última década. METODOLOGIA: Estudo observacional descritivo, a partir de dados secundários, realizado em 3 etapas: 1) pesquisa e consolidação de dados nacionais e subnacionais de diferentes fontes e mapeamento de ILPI; 2) elaboração de mapa geoespacial utilizando o código de endereço postal do Brasil, e 3) triangulação do número de instituições com dados sobre o número dos idosos em cada estado e nas cinco regiões brasileiras. RESULTADOS: Encontramos 7.029 ILPI no país, principalmente nas regiões Sudeste e Sul: São Paulo, Minas Gerais e Rio Grande do Sul tiveram o maior número de instalações, enquanto os estados da região Norte representavam apenas 1,12% das ILPI brasileiras. O mapeamento geoespacial destacou que 64% dos 5 570 municípios brasileiros não possuem ILPI para os idosos. CONCLUSÕES: Observamos uma grande diferença no Brasil em relação à prestação de cuidados de longa duração.

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