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BACKGROUND: Treating unruptured brain arteriovenous malformations (bAVMs) represent significant challenges, with numerous uncertainties still in debate. The ARUBA trial induced further investigation into optimal management strategies for these lesions. Here, we present a systematic-review and meta-analysis focusing on ARUBA-eligible studies, aiming to correlate patient data with outcomes and discuss key aspects of these studies. METHODS: Following PRISMA guidelines, we conducted a systematic-review. Variables analyzed included bAVM Spetzler-Martin (SM) grade, treatment modalities, and outcomes such as mortality and neurological deficits. We compared studies with a minimum of 50% cases classified as SM 1-2 lesions and those with less than 50% in this category. Similarly, a comparison between studies with at least 50% microsurgery-cases and those with less than 50% was performed. We examined correlations between mortality incidence, SM distribution, and treatment modalities. RESULTS: Our analysis included 16 studies with 2.417 patients. The frequency of bAVMs SM-grade 1-2 ranged from 44% to 76%, SM-grade 3 from 19% to 48%, and SM 4-5 from 5 to 23%. Notably, studies with more than 50% cases presenting lesions SM-grade 1-2 presented significantly lower mortality rates than those with less than 50% cases of SM 1-2 lesions (P < 0.001). No significant difference in mortality rates or neurological deficits was identified between studies with more than 50% of microsurgery-cases and those with less than 50%. CONCLUSIONS: The analysis revealed that studies with a higher proportion of bAVMs presenting SM 1-2 lesions were associated with lower mortality rates. Mortality did not show a significant association with treatment modalities.
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Introdução: Craniossinostoses são definidas como fusões prematuras de uma ou mais suturas cranianas. Podem ser classificadas de acordo com as suturas envolvidas, malformações correlacionadas e alterações genéticas, podendo ser sindrômicas ou não. Sua incidência estimada em 1:2.000-2.500 nascidos vivos, sendo apenas 8% sindrômicas. Existem múltiplas opções cirúrgicas para a correção destas malformações, e o encaminhamento precoce para centros especializados no tratamento destes doentes é necessário para uma melhor indicação terapêutica. O diagnóstico é pautado no exame físico e tomografia computadorizada. O tratamento cirúrgico traz melhoras significativas estéticas e no convívio social dos pacientes. O objetivo é analisar os dados, retrospectivamente, dos pacientes submetidos à cirurgia para correção de craniossinostoses, no HC da UNESP-Botucatu. Métodos: Análise retrospectiva dos prontuários de pacientes submetidos à correção cirúrgica de craniossinostoses entre 2012 e 2017. Resultados: A prevalência de escafocefalia e trigonocefalia foi igual (38,5%), idade média de abordagem de 24 meses, o tempo cirúrgico médio foi de 3h48min, sendo menor nas escafocefalias, 2h50min. Todos os pacientes receberam transfusão de sangue no perioperatório com média percentual em relação ao volume sanguíneo pré-operatório de 24,9% e fizeram pós-operatório em UTI pediátrica. Não houve óbitos ou complicações, e os resultados tidos como bom pela equipe e familiares. Conclusão: O tratamento cirúrgico aberto das craniossinostoses não sindrômicas é um procedimento seguro. As equipes de cirurgia plástica conseguem alcançar resultados equiparáveis aos descritos na literatura, com baixas taxas de complicações, bom resultado estético, quando executado de maneira adequada, e com abordagem multidisciplinar.
Introduction: Craniosynostoses are defined as premature fusions of one or more cranial sutures. They can be classified according to the sutures involved, correlated malformations and genetic alterations, and maybe syndromic or not. Its incidence is estimated at 1: 2,000-2,500 live births, with only 8% being syndromic. There are multiple surgical options for the correction of these malformations, and early referral to specialized centers for the treatment of these patients is necessary for a better therapeutic indication. The diagnosis is based on physical examination and computed tomography. The surgical treatment brings significant aesthetic and social improvements to patients. The objective is to analyze retrospectively patient data who underwent surgery to correct craniosynostosis at HC of UNESP-Botucatu. Methods: Retrospective analysis of the medical records of patients who underwent surgical correction of craniosynostosis between 2012 and 2017. Results: The prevalence of scaphocephaly and trigonocephaly was the same (38.5%). The mean age of the approach was 24 months; the mean surgical time was 3h48min, lower in scaphocephaly, 2h50min. All patients received blood transfusions in the perioperative period, with a mean percentage of 24.9% in relation to the preoperative blood volume. They underwent postoperative in a pediatric ICU. There were no deaths or complications, and the results were considered good by the team and family. Conclusion: Open surgical treatment of non-syndromic craniosynostosis is a safe procedure. Plastic surgery teams can achieve results comparable to those described in the literature, with low complication rates, good aesthetic results when performed correctly and with a multidisciplinary approach.
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INTRODUCTION: Formaldehyde is a compound with a wide range and is commonly used in anatomy and pathology laboratories. At room temperature is quickly volatilized to a pungent and suffocating gas and its inhalation has been correlated to nuclear alterations in different tissues. We aimed to investigate whether exposure to this compound was correlated with the appearance of cytotoxic and genotoxic features in the nasal epithelial cells of students enrolled in a human anatomy course. MATERIAL AND METHODS: This prospective study collected periodically nasal cells from mucosa of 17 volunteers from two different undergraduate programs with different workloads of practical lessons in an anatomy laboratory, 30 and 90 hours per semester. Cells were staining according to Feulgen method and nuclear morphology was analyzed to detect possible damage. Dunn's post hoc test was used in the statistical analysis. Pearson's correlation was performed for gender, age and questionnaire responses. RESULTS: Epithelial cells showed indicators of cytotoxicity and mutagenicity. Students with a more extensive workload in anatomy laboratory displayed a more severe profile with an increase in karyorrhexis (p 0.05). CONCLUSION: Individuals exposed for short periods of time to formaldehyde are subject to the toxic action of this gas. Karyorrhexis was the most frequently observed cytotoxic feature and micronucleus showed an increase between the first time point. The patterns observed between the student's groups suggest a negative effect due to exposure time
INTRODUCCIÓN: El formaldehído es un compuesto con una amplia variedad y se utiliza comúnmente en los laboratorios de anatomía y patología. En la temperatura ambiente se volatiliza rápidamente en un gas acre sofocante. Su inhalación se ha correlacionado con la aparición de alteraciones nucleares en diferentes tejidos. El objetivo fue investigar si la exposición a este compuesto podría estar relacionado con la aparición de aspectos citotóxicos y genotóxicos en las células epiteliales nasales de los estudiantes del curso de anatomía humana. MATERIAL Y MÉTODOS: En este estudio las células nasales proclives se recogieron periódicamente de la mucosa de los 17 voluntarios de las carreras universitarias con diferentes cargas de clases prácticas en el laboratorio de anatomía, 30 y 90 horas semestrales. Las células fueron teñidas por el método de Feulgen y la morfología nuclear fue evaluada para la detección de posibles daños. Prueba post hoc de Dunn fue utilizada para el análisis estadístico. Correlación de Pearson fue realizada con los datos de sexo, edad y las respuestas del cuestionario. RESULTADOS: Las células epiteliales mostraron indicadores de citotoxicidad, mutagenicidad. Los estudiantes con una carga de trabajo más extensa en el laboratorio de anatomía mostraron perfil más grave con el aumento de cariorrexis (p 0,05). CONCLUSIÓN: Individuos expuestos durante cortos períodos de tiempo a formaldehído están sujetos a la acción tóxica de gas. Cariorrexis fue la característica citotóxica observada con mayor frecuencia y micronúcleos mostraron un aumento entre el primer punto de tiempo. Los diferentes patrones de daños observados entre los grupos de estudiantes sugieren que el efecto negativo de gas puede está relacionado con el tiempo de exposición
