Exploring the neural basis of non-invasive prehabilitation in brain tumour patients: An fMRI-based case report of language network plasticity.

Primary brain neoplasms are associated with elevated mortality and morbidity rates. Brain tumour surgery aims to achieve maximal tumour resection while minimizing damage to healthy brain tissue. Research on Neuromodulation Induced Cortical Prehabilitation (NICP) has highlighted the potential, before neurosurgery, of establishing new brain connections and transfer functional activity from one area of the brain to another. Nonetheless, the neural mechanisms underlying these processes, particularly in the context of space-occupying lesions, remain unclear. A patient with a left frontotemporoinsular tumour underwent a prehabilitation protocol providing 20 sessions of inhibitory non-invasive neuromodulation (rTMS and multichannel tDCS) over a language network coupled with intensive task training. Prehabilitation resulted in an increment of the distance between the tumour and the language network. Furthermore, enhanced functional connectivity within the language circuit was observed. The present innovative case-study exposed that inhibition of the functional network area surrounding the space-occupying lesion promotes a plastic change in the network's spatial organization, presumably through the establishment of novel functional pathways away from the lesion's site. While these outcomes are promising, prudence dictates the need for larger studies to confirm and generalize these findings.

The influence of epigenetic biological age on key complications and outcomes in aneurysmal subarachnoid haemorrhage.

BACKGROUND: We aimed to investigate the association between DNA-methylation biological age (B-age) calculated as age acceleration (ageAcc) and key aneurysmal subarachnoid haemorrhage (aSAH) complications such as vasospasm, delayed cerebral ischaemia (DCI), poor outcome, and mortality. METHODS: We conducted a prospective study involving 277 patients with aSAH. B-age was determined in whole blood samples using five epigenetic clocks: Hannum's, Horvath's, Levine's and both versions of Zhang's clocks. Age acceleration was calculated as the residual obtained from regressing out the effect of C-age on the mismatch between C-age and B-age. We then tested the association between ageAcc and vasospasm, DCI and 12-month poor outcome (mRS 3-5) and mortality using linear regression models adjusted for confounders. RESULTS: Average C-age was 55.0 years, with 66.8% being female. Vasospasm occurred in 143 cases (51.6%), DCI in 70 (25.3%) and poor outcomes in 99 (35.7%), with a mortality rate of 20.6%. Lower ageAcc was linked to vasospasm in Horvath's and Levine's clocks, whereas increased ageAcc was associated with 12-month mortality in Hannum's clock. No significant differences in ageAcc were found for DCI or poor outcome at 12 months with other clocks. CONCLUSIONS: Our study indicates that B-age is independently associated with vasospasm and 12-month mortality in patients with aSAH. These findings underscore the potential role of epigenetics in understanding the pathophysiology of aSAH-related complications and outcomes.

Narrative Review of Multidisciplinary Management of Central Nervous Involvement in Patients with HER2-Positive Metastatic Breast Cancer: Focus on Elderly Patients.

The tumor biology of human epidermal growth factor receptor 2 (HER2)-positive breast cancer (BC) promotes the development of central nervous system (CNS) metastases, with 25% of patients with HER2-positive BC developing CNS metastases. Furthermore, the incidence of HER2-positive BC brain metastases has increased in the last decades, likely because of the improved survival with targeted therapies and better detection methods. Brain metastases are detrimental to quality of life and survival and represent a challenging clinical problem, particularly in elderly women, who comprise a substantial proportion of patients diagnosed with BC and often have comorbidities or an age-related decline in organ function. Treatment options for patients with BC brain metastases include surgical resection, whole-brain radiation therapy, stereotactic radiosurgery, chemotherapy, and targeted agents. Ideally, local and systemic treatment decisions should be made by a multidisciplinary team, with input from several specialties, based on an individualized prognostic classification. In elderly patients with BC, additional age-associated conditions, such as geriatric syndromes or comorbidities, and the physiologic changes associated with aging, may impact their ability to tolerate cancer therapy and should be considered in the treatment decision-making process. This review describes the treatment options for elderly patients with HER2-positive BC and brain metastases, focusing on the importance of multidisciplinary management, the different points of view from the distinct disciplines, and the role of oncogeriatric and palliative care in this vulnerable patient group.

Safety and Performance of a New Burr Hole Covering Device: Results of the Multicenter COVER Registry.

BACKGROUND: Burr hole covering in brain surgical procedures can avoid complications and unaesthetic results. The aim of this registry was to assess the safety and performance of a new polymeric burr hole covering device (Cranial COVER, NEOS Surgery). METHODS: A multicenter, prospective, clinical registry design was used for the study. All the patients who fulfilled the inclusion criteria were included in the study and followed up for 6 months. Baseline clinical parameters, surgical variables (technical success of the implantation, surgeon satisfaction), postoperative variables (aesthetic and functional results, neuroimaging artifacts), and adverse events were evaluated. RESULTS: Forty-three Cranial COVER devices were implanted in 30 patients. Most of them were implanted in frontal locations (53.5%). After implantation, 97.7% of the devices completely covered the burr hole, and 100% perfectly adapted to the skull surface. All surgeons ranked their satisfaction with the implantation procedure as very high or high. No artifacts were detected in any of the neuroimaging studies performed and no adverse events related with the device or its implantation were reported during the follow-up. There were significantly more scalp depressions associated with uncovered than with Cranial COVER-covered burr holes (p = 0.040). Patient satisfaction with covered burr holes located in the frontal and parietal areas was 9.0 ± 1.4 over 10. CONCLUSION: Cranial COVER is a safe and reliable burr hole covering system that offers excellent cosmetic results and high satisfaction rates for both surgeons and patients. Cranial COVER is highly adaptable to the skull surface, and it was predominantly used in frontal locations due to their cosmetic importance.

Assessment of THADA gene polymorphisms in a sample of Colombian women with polycystic ovary syndrome: A pilot study.

Polycystic ovary syndrome (PCOS) is a multifactorial and polygenic endocrine-metabolic disorder in women of reproductive age. SNPs in the THADA gene have been identified as PCOS risk loci. In this study, we evaluated the frequency of five polymorphisms in a sample of Colombian women with PCOS, and their association with clinical and endocrine-metabolic parameters. Forty-nine women with PCOS and forty-nine healthy women were included. Allelic discrimination was performed in the THADA gene by iPLEX and the MassARRAY system (Agena Bioscience). Haploview software was conducted to analyze the linkage disequilibrium (LD) and haplotypes of polymorphisms. There was an association between the genotypes TT of rs12468394, CC + AA of rs12468394, and GG of rs6544661 and an increase in the levels of free testosterone. The CC + AA of rs12468394 genotype also was associated with an increase of androstenedione levels. THADA gene SNPs were not associated with PCOS risk. There was very strong LD among the SNPs. No significant differences in the frequency of haplotypes between groups were observed. The statistical power of this analysis is low because of the small number of samples analyzed. Additional studies involving large populations of Colombian women with PCOS are needed to verify the role of the THADA gene in this disorder.

Comportamiento clínico del parto vertical y en posición de litotomía en dos centros de salud de Cusco, Perú / Clinical behavior of vertical delivery and in lithotomy position in two Health Centers of Cusco, Peru

Resumen OBJETIVO: Comparar el comportamiento clínico del parto vertical con el horizontal en embarazadas atendidas en dos centros de salud de Cusco, Perú. MATERIALES Y MÉTODOS: Estudio descriptivo, comparativo y prospectivo con un componente correlacional efectuado en dos centros de salud de la ciudad de Cusco, Perú, del 1 de septiembre del 2020 al 31 de enero del 2021, en mujeres embarazadas que tuvieron parto vertical u horizontal. El cálculo del tamaño de muestra se estableció con el programa estadístico EPIDAT mediante la comparación de medias de grupos independientes. RESULTADOS: Se estudiaron 212 pacientes (106 en parto vertical y 106 en posición de litotomía). En las pacientes con parto horizontal se registraron 3 casos de activación de código rojo (1.42%) con sangrado máximo de 2500 cc. El grado de desgarro vaginal más frecuente fue 1, en 103 mujeres (48.58%). La involución uterina en los dos grupos, a las 6 h, fue de 13 cm en 80 mujeres (37.74%), a las 12 h de 12 cm en 83 mujeres (39.15%) y para las 24 h de 11 cm en 84 mujeres (39.62%). Las horas mínimas de trabajo de parto fueron 2.38 h en el grupo de parto vertical; el puntaje Apgar más bajo fue 7 al primer minuto (1.42%) y al minuto 5 (0.47%). CONCLUSIONES: El parto vertical puede ofrecer ventajas significativas en comparación con el horizontal en algunas variables: trabajo de parto más corto, Apgar al minuto e involución uterina. Para las demás variables estudiadas no se encontraron diferencias estadísticamente significativas.

Abstract OBJECTIVE: To compare the clinical behavior of vertical delivery and delivery in the lithotomy position in pregnant women attended in two health centers in Cusco, Peru. MATERIALS AND METHODS: Descriptive, comparative and prospective study with a correlational component carried out in two health centers in the city of Cusco, Peru, from September 1, 2020 to January 31, 2021 in pregnant women who delivered vertically or horizontally. The sample size was calculated using the EPIDAT statistical program by comparing the means of independent groups. RESULTS: 212 patients were studied (106 in vertical delivery and 106 in lithotomy position). In horizontal delivery patients there were 3 cases of code red activation (1.42%) with maximum bleeding of 2500 cc. The most frequent vaginal tear grade was 1, in 103 women (48.58%). Uterine involution in the two groups, at 6 h, was 13 cm in 80 women (37.74%), at 12 h 12 cm in 83 women (39.15%) and by 24 h 11 cm in 84 women (39.62%). Minimum labor hours were 2.38 h in the vertical delivery group; the lowest Apgar score was 7 at 1 min (1.42%) and at 5 min (0.47%). CONCLUSIONS: Vertical delivery may offer significant advantages compared to horizontal delivery in some variables: shorter labor, Apgar at minute and uterine involution. For the other variables studied, no statistically significant differences were found.

Adaptación transcultural y validación de un contenido del cuestionario Texas Textbook Evaluation Tool (T-TET) de evaluación de libros de texto para ciencias de la salud / Cross-Cultural Adaptation and Content Validation of Texas Textbook Evaluation Tool (T-TET) a Book Evaluation Questionnaire for Health Sciences / Adaptação transcultural e validação de um questionário para as ciências da saúde

Introducción: La actualización y evaluación de libros de texto es esencial en el proceso educativo; sin embargo, en idioma español no se encuentran instrumentos para evaluarlos en el área de ciencias de la salud. Objetivo: Llevar a cabo la adaptación transcultural y validación de contenido del instrumento Texas Textbook Eva-luation Tool. Método: Estudio descriptivo de corte transversal con componente psicométrico. Se realizó la adaptación transcul-tural con traducción directa, síntesis de traducciones, traducción inversa, consolidación de traducciones en juicio de expertos y aplicación de una prueba piloto. Todo ello seguido del análisis de fiabilidad interobservador y la consistencia interna a través del alfa ordinal y el análisis factorial confirmatorio.Resultados: Se modificó un ítem que obtuvo un 36,66% de discrepancia. Se obtuvo un alfa de Cronbach de 0,98 y una kappa de Cohen de 0,91. Las pruebas de esfericidad de Barlett y Kaiser-Meyer-Olkin dieron como resulta-do 0,00 y 0,93, respectivamente. Así, se obtuvo en el análisis factorial confirmatorio que todas las variables se agrupan en las seis dimensiones propuestas. Conclusiones: Se realizó una apropiada implementación de los métodos. Los resultados obtenidos destacan la confianza e idoneidad del instrumento. El instrumento presenta una excelente consistencia interna, y se comprobó que mide las dimensiones para las que fue diseñado.

Introduction: The updating and evaluation of textbooks is essential in the educational process, however, in the Spanish language there are no instruments to evaluate them in Health Sciences. Objective: To make a cross-cultural adaptation and content validation of the Texas Textbook Evaluation Tool. Method: Cross-sectional descriptive study with a psychometric component, cross-cultural adaptation is carried out with direct translation, translation synthesis, reverse translation, consolidation of trans-lations in expert judgment and pilot test application. Followed by inter-observer reliability analysis and internal consistency through ordinal alpha and confirmatory factor analysis. Results: One item was modified that obtained a 36% discrepancy. An ordinal alpha of 0.98 and Cohen's Kappa index of 0.91 were obtained. The Bartlett and Kaiser-Meyer-Olkin sphericity tests resul-ted in 0.00 and 0.93 respectively, obtaining in the confirmatory factorial analysis that all the variables are grouped in the 6 proposed dimensions. Conclusions: An appropriate implementation of the methods, the results obtained highlight the con-fidence and suitability of the instrument. The instrument has excellent internal consistency, and it was verified that it measures the dimensions for which it was designed.

Introdução: A atualização dos livros de texto é essencial no processo educacional em Ciências da Saúde, mas no idioma espanhol não há instrumentos para sua avaliação. Objetivo: Adaptação transcultural e validação do instrumento Texas Textbook Evaluation Tool. Método: A tradução, retrotradução, teste piloto, confiabilidade, consistência interna e análise de fatores exploratórios foram abrangidos. Resultados: Um item foi modificado com uma discrepância de 36,66%. Foi obtido um coeficiente alfa de Cronbach de 0,98 e o índice Kappa de Cohen de 0,91. Os testes de esfericidade de Barlett e Kaiser-Meyer-Olkin resultaram em 0,00 e 0,93 respetivamente. Conclusões: Os métodos foram implementados adequadamente, e os resultados obtidos destacam a confiança e adequação do instrumento

Biological and genetic landscape of breast implant-associated anaplastic large cell lymphoma (BIA-ALCL).

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is an uncommon form of non-Hodgkin lymphoma (cancer of the immune system) that can develop around breast implants. Breast implants are among the most commonly used medical devices for cosmetic or reconstructive purposes. In the past few years, the number of women with breast implants diagnosed with anaplastic large cell lymphoma (ALCL) has increased, and several studies have suggested a direct association between breast implants and an increased risk of this disease. Although it has been hypothesized that chronic stimulation of the immune system caused by implant materials and biofilms as well as a possible genetic predisposition play an important role in this disease, the cellular and molecular causes of BIA-ALCL are not fully understood. This review aims to describe the current understanding around the environmental and molecular drivers of BIA-ALCL as well as the genetic and chromosomal abnormalities identified in this disease to date.

Normal-Weight Obesity Is Associated with Poorer Cardiometabolic Profile and Lower Physical Fitness Levels in Children and Adolescents.

Normal-weight obesity (NWO) syndrome has been shown to be associated with cardiometabolic dysfunction. However, little is known regarding this potential relationship in Latin American children and adolescents. The aim of this study was two-fold: (i) to investigate whether Colombian youth with NWO syndrome have a poorer cardiometabolic profile and physical fitness performance than normal-weight lean (NWL) peers; and (ii) to determine if physical fitness levels are related to prevalence of normal-weight obesity in youth. This was an analytical cross-sectional study of 1919 youths (9-179 years old, 53.0% girls) in the capital area of Colombia. NWO was defined as a body mass index < 25 kg/m2 and a validated body fat percentage above the sex-age-specific 90th percentile for Colombian children and adolescents. Body fat was estimated using bioelectrical impedance analysis, cardiorespiratory fitness (CRF) was estimated using the 20-meter shuttle run test, and muscular fitness with the handgrip test. Biochemical profile blood samples were collected for cardiometabolic risk factors. After adjusting for chronological age, pubertal stage, and Mediterranean diet adherence, the NWO group (boys and girls) had significantly higher values for cardiometabolic risk factors, and waist circumference (WC) than the NWL group. The prevalence of NWO was lower in youth classified with healthy CRF (boys, odds ratio (OR) = 0.54, 95% confidence interval (CI) 0.37 to 0.78; girls, OR = 0.35, 95% CI 0.24 to 0.50), p < 0.001. Our findings indicate that using only body mass index for the assessment of cardiometabolic risk likely misrepresents true adiposity and suggest the need to include the assessment of body fat in the routine clinical evaluation of individuals during childhood and adolescence.

Paget's disease of the breast without associated ductal carcinoma: case report and review of the literature / Enfermedad de Paget de la mama sin carcinoma ductal asociado: reporte de caso y revisión de la literatura

Objective: To present one case of Paget's disease (PD) of the breast without associated ductal carcinoma, and to conduct a review of the literature on its diagnosis and treatment. Materials and methods: 59-year-old woman with a two-year history of a chronic erythematous, ulcerated, itchy lesion in the left nipple, initially treated dermatologically with topical steroids with no improvement, finally visits a primary healthcare institution in the city of Tunja, Colombia for diagnosis. A biopsy and histochemical testing were performed to make the diagnosis and the lesion was then treated with central quadrantectomy. The post-operative pathology testing was negative for malignancy, without recurrence at one-year follow-up. A search was conducted in the PubMed, SciELO, ProQuest, ScienceDirect and Google Scholar databases using the terms "Paget´s Disease," "Breast Neoplasms," "Mammography," "Ultrasonography," Mammary," "Biopsy," and "Mastectomy," tracking bibliographic review articles, editorials, reports and clinical case series in English and Spanish, without time limitation. Results: Overall, 11 publications were included consisting of 5 case reports, 3 case series, 1 review of the literature based on a clinical case, and 2 letters to the editor describing cases related to Paget's disease of the nipple with no associated carcinoma. The diagnosis was based on the clinical suspicion of the disease and a biopsy of the lesion. Histochemistry was useful for the differential diagnosis: treatment options ranged from mastectomy to nipple-areolar complex resection. Radiotherapy has also been used. Conclusions: The diagnosis of Paget's disease with no associated ductal carcinoma is based on early clinical suspicion and histopathology of the nipple- areolar complex. There is no consensus regarding surgical management of this lesion. Follow-up studies of this subgroup of patients treated with radiotherapy or conservative surgery are required.

TITULO: ENFERMEDAD DE PAGET DE LA MAMA, SIN CARCINOMA DUCTAL ASOCIADO: REPORTE DE CASO Y REVISIÓN DE LA LITERATURA. Objetivo: Presentar un caso de enfermedad de Paget (EP) de la mama, sin carcinoma ductal asociado, y realizar una revisión de literatura respecto a su diagnóstico y tratamiento. Materiales y métodos: Mujer de 59 años, con lesión pruriginosa, eritematosa y ulcerada crónica, en pezón izquierdo, de 2 años de evolución, quien recibió inicialmente manejo dermatológico con corticoides tópicos sin mejoría clínica, que acude finalmente a una institución de atención primaria en Tunja (Colombia) para su diagnóstico, el cual se realizó por biopsia mediante inmunohistoquímica y posterior manejo por cuadrantectomía central con patología posquirúrgica negativa para malignidad, sin recurrencia al año de seguimiento. Se realizó una búsqueda en las bases de datos Medline vía PubMed, SciELO, ProQuest, ScienceDirect y Google Académico con los términos "Paget´s Disease", "Breast Neoplasms", "Mammography" "Ultraso- nography Mammary", "Biopsy" y "Mastectomy", rastreando artículos de revisión bibliográfica, editoriales, reportes y series de casos clínicos en inglés y español, sin límite de tiempo. Resultados: Se incluyeron 11 publicaciones correspondientes a 5 reportes de caso, 3 series de casos, 1 revisión de la literatura a partir de un caso clínico, y 2 cartas al editor que describieron casos relacionados con enfermedad de Paget del pezón sin carcinoma asociado. El diagnóstico se funda- mentó en la sospecha clínica de la enfermedad con la posterior realización de biopsia de la lesión; la inmunohistoquímica fue útil en el diagnóstico diferencial. El tratamiento varió desde mastectomía hasta resección de complejo areola-pezón. La radioterapia también ha sido utilizada. Conclusiones: El diagnóstico de la enfermedad de Paget sin carcinoma ductal asociado se fundamenta en una sospecha clínica temprana y en el estudio histopatológico del complejo areola-pezón. No hay consenso sobre el manejo quirúrgico de esta lesión. Se requieren estudios de seguimiento de este subgrupo de pacientes tratado con radioterapia o cirugía conservadora.

Misdiagnosis Worsens Prognosis in Subarachnoid Hemorrhage With Good Hunt and Hess Score.

Background and Purpose- Our aim was to describe variables associated with initial misdiagnosis of subarachnoid hemorrhage (SAH). We also analyzed the relationship of misdiagnosis with poor outcome and complications in good Hunt and Hess (HH) cases. Methods- In a prospective cohort of 401 patients with SAH, misdiagnosis was defined as failure to correctly identify, at first physician contact, a subsequently documented SAH; this meant no urgent radiological study and lumbar puncture was performed. Poor outcome was defined as modified Rankin Scale score 3 to 6 at 3-month follow-up. We recorded age, sex, hypertension, diabetes mellitus, current smoking, previous antithrombotic treatment, initial HH and radiological severity, presence of aneurysm, first therapeutic procedure, hydrocephalus, delayed cerebral ischemia (DCI), rebleeding, and procedure-related complications. Results- Misdiagnosis was confirmed in 104/401 (25.9%) patients, who also had a longer time-to-admission to hospital. Misdiagnosis was associated with less clinical and radiological severity, compared with a correct diagnosis; the 2 groups did not differ in age or cardiovascular risk factor profile. Poor outcome was registered in 167/401 patients (41.6%). Age, misdiagnosis, and greater clinical and radiological initial severity were independent predictors of poor outcome. In the 236 patients (58.8% of cohort) with HH 1-2, misdiagnosis was associated with poor outcome in univariate and multivariate analysis, respectively (odds ratio=3.89; 95% CI, 1.89-8.01). Delayed cerebral ischemia (odds ratio=2.47; 95% CI, 1.2-5.09) and procedure-related complications (odds ratio=2.27; 95% CI, 1.07-4.82) were independently associated with misdiagnosis. Conclusions- Misdiagnosis is an unresolved problem in SAH, and it is a missed opportunity for good outcome in patients with HH 1-2. The poor outcome is partially explained by a higher risk of delayed cerebral ischemia and procedure-related complications in misdiagnosed patients. There is a need to improve the diagnostic strategy in patients reporting only a headache (HH 1-2) after SAH.

Paget's disease of the breast without associated ductal carinoma: Case report and review of the literature / Enfermedad de paget de la mama, sin carcinoma ductal asociado: reporte de caso y revisión de la literatura

RESUMEN Objetivo: presentar un caso de enfermedad de Paget (EP) de la mama, sin carcinoma ductal asociado, y realizar una revisión de literatura respecto a su diagnóstico y tratamiento. Materiales y métodos: mujer de 59 años, con lesión pruriginosa, eritematosa y ulcerada crónica, en pezón izquierdo, de 2 años de evolución, quien recibió inicialmente manejo dermatológico con corticoides tópicos sin mejoría clínica, que acude finalmente a una institución de atención primaria en Tunja (Colombia) para su diagnóstico, el cual se realizó por biopsia mediante inmunohistoquímica y posterior manejo por cuadrantectomía central con patología posquirúrgica negativa para malignidad, sin recurrencia al año de seguimiento. Se realizó una búsqueda en las bases de datos Medline vía PubMed, SciELO, ProQuest, ScienceDirect y Google Académico con los términos "Paget´s Disease", "Breast Neoplasms", "Mammography" "Ultrasonography Mammary", "Biopsy" y "Mastectomy", rastreando artículos de revisión bibliográfica, editoriales, reportes y series de casos clínicos en inglés y español, sin límite de tiempo. Resultados: se incluyeron 11 publicaciones correspondientes a 5 reportes de caso, 3 series de casos, 1 revisión de la literatura a partir de un caso clínico, y 2 cartas al editor que describieron casos relacionados con enfermedad de Paget del pezón sin carcinoma asociado. El diagnóstico se fundamentó en la sospecha clínica de la enfermedad con la posterior realización de biopsia de la lesión; la inmunohistoquímica fue útil en el diagnóstico diferencial. El tratamiento varió desde mastectomía hasta resección de complejo areola-pezón. La radioterapia también ha sido utilizada. Conclusiones: el diagnóstico de la enfermedad de Paget sin carcinoma ductal asociado se fundamenta en una sospecha clínica temprana y en el estudio histopatológico del complejo areola-pezón. No hay consenso sobre el manejo quirúrgico de esta lesión. Se requieren estudios de seguimiento de este subgrupo de pacientes tratado con radioterapia o cirugía conservadora.

ABSTRACT Objective: To present one case of Paget's disease (PD) of the breast without associated ductal carcinoma, and to conduct a review of the literature on its diagnosis and treatment. Materials and methods: A 59-year-old woman with a two-year history of a chronic erythematous, ulcerated, itchy lesion in the left nipple, initially treated dermatologically with topical steroids with no improvement, finally visits a primary healthcare institution in the city of Tunja, Colombia for diagnosis. A biopsy and histochemical testing were performed to make the diagnosis and the lesion was then treated with central quadrantectomy. The post-operative pathology testing was negative for malignancy, without recurrence at one-year follow-up. A search was conducted in the PubMed, SciELO, ProQuest, ScienceDirect and Google Scholar databases using the terms "Paget´s Disease," "Breast Neoplasms," "Mammography," "Ultrasonography," Mammary," "Biopsy," and "Mastectomy," tracking bibliographic review articles, editorials, reports and clinical case series in English and Spanish, without time limitation. Results: Overall, 11 publications were included consisting of 5 case reports, 3 case series, 1 review of the literature based on a clinical case, and 2 letters to the editor describing cases related to Paget's disease of the nipple with no associated carcinoma. The diagnosis was based on the clinical suspicion of the disease and a biopsy of the lesion. Histochemistry was useful for the differential diagnosis: treatment options ranged from mastectomy to nipple-areolar complex resection. Radiotherapy has also been used. Conclusions: The diagnosis of Paget's disease with no associated ductal carcinoma is based on early clinical suspicion and histopathology of the nipple-areolar complex. There is no consensus regarding surgical management of this lesion. Follow-up studies of this subgroup of patients treated with radiotherapy or conservative surgery are required.

Safety and Efficacy of 5-Aminolevulinic Acid for High Grade Glioma in Usual Clinical Practice: A Prospective Cohort Study.

BACKGROUND: During the last decade, the use of 5-aminolevulinic acid (5-ALA) has been steadily increasing in neurosurgery. The study's main objectives were to prospectively evaluate the effectiveness and safety of 5-ALA when used in clinical practice setting on high-grade gliomas' patients. METHODS: National, multicenter and prospective observational study. INCLUSION CRITERIA: authorized conditions of use of 5-ALA. EXCLUSION CRITERIA: contraindication to 5-ALA, inoperable or partial resected tumors, pregnancy and children. Epidemiological, clinical, laboratory, radiological, and safety data were collected. Effectiveness was assessed using complete resection of the tumor, and progression-free and overall survival probabilities. RESULTS: Between May 2010 and September 2014, 85 patients treated with 5-ALA were included, and 77 were suitable for the effectiveness analysis. Complete resection was achieved in 41 patients (54%). Surgeons considered suboptimal the fluorescence of 5-ALA in 40% of the patients assessed. The median duration of follow-up was 12.3 months. The progression-free survival probability at 6 months was 58%. The median duration overall survival was 14.2 months. Progression tumor risk factors were grade of glioma, age and resection degree; and death risk factors were grade of glioma and gender. No severe adverse effects were reported. At one month after surgery, new or increased neurological morbidity was 6.5%. Hepatic enzymes were frequently increased within the first month after surgery; however, they subsequently normalized, and this was found to have no clinical significance. CONCLUSION: In clinical practice, the 5-ALA showed a good safety profile, but the benefits related to 5-ALA have not been yet clearly shown. The improved differentiation expected by fluorescence between normal and tumor cerebral tissue was suboptimal in a relevant number of patients; in addition, the expected higher degree of resection was lower than in clinical trials as well as incomplete resection was not identified as a prognostic factor risk for death. Because optimal fluorescence was correlated to higher complete resection rate, further research is needed to identify patients (or tumors) with more surgery benefits when using the 5-ALA.

[Incidence and causes of early end in awake surgery for language mapping not directly related to eloquence]. / Incidencia y causas de finalización anticipada de la cirugía con paciente despierto para mapeo del lenguaje, no relacionadas directamente con la elocuencia.

The incidence and causes that may lead to an early end (unfinished cortical/subcortical mapping) of awake surgery for language mapping are little known. A study was conducted on 41 patients with brain glioma located in the language area that had awake surgery under conscious sedation. Surgery was ended early in 6 patients. The causes were: tonic-clonic seizure (1), lack of cooperation due to fatigue/sleep (4), whether or not word articulation was involved, a decreased level of consciousness for ammonia encephalopathy that required endotracheal intubation (1). There are causes that could be expected and in some cases avoided. Tumour size, preoperative aphasia, valproate treatment, and type of anaesthesia used are variables to consider to avoid failure in awake surgery for language mapping. With these results, the following measures are proposed: l) If the tumour is large, perform surgery in two times to avoid fatigue, 2) if patient has a preoperative aphasia, do not use sedation during surgery to ensure that sleepiness does not cause worse word articulation, 3) if the patient is on valproate treatment, it is necessary to rule out the pre-operative symptoms that are not due to ammonia encephalopathy.

Mapeo del lenguaje utilizando estimulación magnética transcraneal repetitiva por navegación: un estudio comparativo con la estimulación cortical directa intraoperatoria / Language mapping using repetitive transcranial magnetic stimulation by navigation: a comparative study with direct intraoperative cortical stimulation

Introducción: la estimulación cortical directa (DCS) es una metodología corrientemente usada para localizar áreas del lenguaje en intervenciones quirúrgicas que incluyan resecciones.La estimulación magnética transcraneana repetitiva (rTMS) a demostrado también su capacidad para inducir alteraciones transitorias. Recientemente el desarrollo del Sistema de Navegación de TMS asegura precisa localización del sitio estimulado. El objetivo del trabajo es estudiar la confiabilidad de la estimulación magnética transcraneal repetitiva navegada (nrTMS) en la localización de los sitios del lenguaje. Métodos: Once pacientes seleccionados para mapeo del lenguaje por DCS fueron evaluados pre-cirugía con nrTMS. Los mapeos de lenguaje prequirúrgicos mediante nrTMS fueron comparados con DCS. Resultados: Un total de 25 nrTMS sitios del lenguaje y 38 DCS fueron localizados. La sensibilidad y la especificidad obtenida fue de 88.4 y 95.6, respectivamente. La distancia media fue evaluada en 4,5mm. Conclusiones: Los dispositivos de nrTMS permiten la identificación de las áreas corticales del lenguaje. Con un alto grado de concordancia con el mapeo TMS. La nrTMS se muestra como una herramienta de interés en la investigación y aplicación práctica en la función del lenguaje.

Introduction: direct cortical stimulation (DCS) is currently used to localise language areas in surgical resections. Repetitive transcranial magnetic stimulation (rTMS) has also shown its capacity to induce transient language alterations. Newly developed Navigated Brain Systems of TMS ensure precise topographical localisation of the stimulated site. The objective was to study the reliability of navigated repetitive transcranial magnetic stimulation (nrTMS) in language sites localisation.Methods: Eleven patients selected for DCS language mapping were presurgically evaluated with nrTMS. These presurgicalnrTMS language maps were then compared with DCS.Results: A total number of 25 nrTMS and 38 DCS language sites were localised. Sensitivity and specificity were calculated as 88.4 and 95.6 respectively. Mean distance was assessed as 4.5 millimetres. Conclusions: nrTMS devices allow identification of cortical language areas, with a high degree of concordance to TMS mapping. NrTMS shows up as an interesting tool for research and practical application in language function.

Trauma mamario por mordedura de caballo: Reporte de caso / Breast injury due to horse bite: Case report

Objetivo: presentar un caso de trauma mamario por mordedura de caballo en una mujer y revisar el manejo de este tipo de accidentes. Materiales y métodos: se presenta un caso de trauma mamario izquierdo por mordedura de equino, de 10 días de evolución, en una mujer de 43 años de edad atendida en una institución de primer nivel de complejidad, posteriormente remitida para estudio imaginológico y manejo a una institución de tercer nivel de complejidad. Se realizó una búsqueda de la información en las bases de datos SciELO y PubMed con la terminología MeSH “Bite horsebreast trauma”, y en español “trauma mamario por mordedura de equino”. Conclusiones: los traumatismos mamarios por mordedura de caballo son infrecuentes y pueden acompañarse de lesiones que van desde laceraciones, equimosis, hematomas, amputación de la glándula mamaria y complicaciones sistémicas de tipo infeccioso, así como secuelas severas de tipo funcional y estético. Es indispensable adoptar medidas preventivas generales y manejar secuencialmente el caso como se recomienda en el presente reporte.

Objective: To present a case of female breast trauma due to horse bite and review the management of this type of injury. Materials and methods: Case presentation of left beast injury caused by horse bite in a 43 year-old woman who came to a first level institution 10 days after the accident, and was then referred for imaging studies and management to a level 3 complexity institution. A search was conducted in the SciELO and PubMed databases using MeSH terms “Bite horse breast Trauma” in English and “mammary trauma due to equine bite” in Spanish. Conclusions: Breast injury due to horse bite is infrequent and may be accompanied by lesions ranging from lacerations to bruising, hematomas, mammary gland amputation and infectious systemic complications, as well as severe functional and cosmetic sequelae. It is of the utmost importance to adopt general preventive measures and treat the case sequentially as recommended in this report.

[Normal pressure hydrocephalus: prognostic value of height in patients treated with an identical shunt system]. / Hidrocefalia crónica del adulto: valor pronóstico de la estatura en pacientes manejados con un mismo sistema derivativo valvular.

INTRODUCTION: Normal pressure hydrocephalus (NPH) is a clinical entity frequently managed by means of a cerebrospinal fluid shunt. Hydrodynamic hypotheses consider hydrostatic pressure (as well as height) a very important variable for shunt system function. However, we did not find empirical studies supporting the influence of height on clinical response in the literature. Our objective was to study the prognostic value of height, as a variable related to hydrostatic pressure, when an identical shunt system is used. MATERIAL AND METHOD: A prospective series of 61 idiopathic NPH cases was analyzed. All cases were shunted by means of a ventricle-peritoneal system with a 100mmH2O opening pressure valve. Anthropometric, clinical, radiological and pressure variables were registered, as well as delay for treatment, improvement and complications. RESULTS: 78.7% of cases improved after shunting. This group of patients was significantly taller (P=.005) than the group without response (median value 165cm versus 152cm). There was also a significant correlation between height and ventricular size decrease after the shunt. CONCLUSIONS: In our series opening valve pressure was a constant (100mmHg) and we could consequently focus on the effect of hydrostatic pressure (height). Moreover, we found a positive predictive value for taller patients, probably because we had selected an opening pressure especially suitable for them. Current gravitational valve shunt systems also recommend considering patient height when customising the system. Our study empirically supports this idea.