Surgical outcome of spinal schwannoma and neurofibroma

SUMMARY OBJECTIVE: The aim of this study was to evaluate the outcome and surgical complications in patients with spinal schwannoma or neurofibroma surgically treated at the Hospital das Clínicas of the State University of Campinas. METHODS: This was a retrospective cohort study, using medical records of patients operated between 2011 and 2021. The sample distribution was verified using the Kolmogorov-Smirnov test. The dynamics between qualitative variables were assessed using Fisher's exact test. We used means analysis to assess patient improvement based on Frankel scores. RESULTS: A total of 16 patients were evaluated, of whom 56.25% (9) were men and 43.75% (7) were women. There were 13 (81.25%) patients with schwannomas and 3 (18.75%) with neurofibromas. Patients with deficits had neurological improvement, such as walking or with at least Frankel D or E after surgery. Laminectomy, performed in 8 patients (50%), and laminoplasty, used in 9 patients (56.25%), were the main techniques. CONCLUSION: The surgical approach was proved to be an effective and safe alternative to the treatment of these tumors, with neurological improvement and minor surgical complications.

Patterns of arterial vascularization in swine hearts / Padrões de vascularização arterial em corações de suínos

This study aimed to characterize the patterns of arterial vascularization in swine hearts. Ninety swine hearts were submitted to the Spalteholz diaphanization technique in order to dissect the coronary arteries. Three types of arterial vascularization patterns were characterized through the behaviorof the rami circumflexus and interventricularis, namely: balanced, right and left types. The balanced pattern was the most frequently (42.2%); in this case, the rami circumflexus and interventricularis occupied their respective sulci. The right type (40%) was further categorized into three vascularization subtypes. In the first, ramus circumflexus dexter branched from the ramus interventricularis subsinuosus. In the second, the arteria coronaria dextra branched from ramus interventricularis subsinuosus and ramus circumflexus. In the third model, arteria coronaria sinister branched from ramus interventricularis paraconalis. The left type (17.7%) exhibited two subtypes. In the first, ramus interventricularis paraconalis ran through the entire corresponding sulcus and the ventral third of sulcus interventricularis subsinuosus, and ramus interventricularis subsinuosus occupied the dorsal and middle third of its respective sulcus. In the second, ramus interventricularis subsinuosus branched from arteria coronaria dextra and ran through the dorsal and medium thirds of its respective sulcus, and the ventral third was occupied by the collateral branch of ramus circumflexus sinister. Our results reinforce the thesis that the blood distribution system through the coronary artery in swine is similar to human, not only in qualitative but also by a quantitative comparison.

Este estudo teve como objetivo caracterizar os padrões de vascularização arterial em corações de suínos. Para tanto, 90 corações de suínos foram submetidos à técnica de diafanização de Spalteholz com a finalidade de dissecar as artérias coronárias. Através do comportamento dos rami circumflexus e interventricularis caracterizou-se três modalidades de vascularização arterial do coração de suínos, sendo eles os tipos equilibrado, direito e esquerdo. O equilibrado foi observado com maior frequência (42,2%), neste caso os rami circumflexus e interventricularis das artérias coronárias ocupavam seus respectivos sulcos. O tipo direito (40%) apresentou três subtipos de vascularização. No primeiro o ramus circumflexus dexter ramificava-se formando o ramus interventricularis subsinuosus. No segundo, a arteria coronaria dextra emitia o ramus interventricularis subsinuosus e ramus circunflexus. E no terceiro modelo, da arteria coronaria sinistra emergia o ramus interventricularis paraconalis. O tipo esquerdo (17,7%) apresentou dois subtipos. No primeiro, o ramus interventricularis paraconalis percorria todo o sulco correspondente e o terço ventral do sulcus interventricularis subsinuosus, o ramus interventricularis subsinuosus ocupava os terços dorsal e médio do seu respectivo sulco. No segundo, o ramus interventricularis subsinuosus oriundo da arteria coronaria dextra percorria apenas os terços dorsal e médio do seu respectivo sulco, ficando o terço ventral ocupado por colateral do ramus circumflexus sinister. Nossos resultados reforçam a tese de que a distribuição do suprimento sanguíneo pela artéria coronária em suínos é semelhante ao humano, não apenas de maneira qualitativa, mas também do ponto de vista quantitativo.

Impacto dos marcadores socioeconômicos na gravidade do linfedema das extremidades inferiores / Impact of socioeconomic markers in severity of lower extremity lymphedema Marcadores na gravidade do linfedema das extremidades inferiores

No Brasil, a incidência do linfedema é pouco conhecida e poucas são as documentações científicas reportando a associação do linfedema com os fatores sociais e econômicos na nossa região. O objetivo do estudo foi analisar o impacto dos marcadores socioeconômicos na gravidade do linfedema das extremidades inferiores conforme a classificação de Mowlem, na região metropolitana de Salvador (BA). Dos 324 pacientes estudados, 200 (62 por cento) eram do gênero feminino. A idade variou entre 14 e 69 anos, com mediana de 48 anos. Analisando comparativamente as variáveis: gravidade do linfedema versus grau de escolaridade e gravidade versus renda familiar, observou-se que 93,8 por cento dos pacientes classificados como Mowlem III estavam incluídos no grupo dos pacientes sem escolaridade e/ou com renda familiar de até três salários-mínimos. Não houve registro de doença avançada em pacientes com renda familiar acima de sete salários-mínimos e/ou com terceiro grau completo.

In Brazil, the incidence of lymphedema is poorly known, and there is little scientific documentation reporting the association of lymphedema with the social and economic factors in our region. The objective was to analyze the impact of socioeconomic markers on the severity of lymphedema of the lower extremities according to the classification of Mowlem in the metropolitan region of Salvador (BA), Brazil. Of the 324 patients studied, 200 (62 percent) were female. The age ranged between 14 and 69 years, median 48 years. Comparatively analyzing the varying severity of lymphedema versus education level and severity versus family income, it showed that 93.8 percent of patients classified as Mowlem III were included in the group of patients without education and/or with income up to three minimum wages. There was no record of advanced disease in patients with family incomes greater than seven minimum wages and/or graduate.