Trombose de seio sigmoide secundária a fístula liquórica espontânea para osso temporal: um relato de caso / Sigmoid sinus thrombosis secondary to spontaneous temporal bone cerebrospinal fluid fistula: a case report

A fístula liquórica para o osso temporal constitui um evento raro que decorre da comunicação anormal entre o espaço subaracnóideo e as células da mastoide, permitindo que o líquido cefalorraquidiano flua para as porções pneumatizadas do osso temporal. Tem como consequência a hipotensão intracraniana espontânea, caracterizada por perda de líquor e pela manifestação clínica de cefaleia ortostática. Acredita-se que a hipotensão intracraniana espontânea crie condições hemodinâmicas favoráveis à ocorrência de trombose venosa cerebral, uma desordem potencialmente fatal e de difícil diagnóstico, visto a inespecificidade de sinais clínicos e sintomas. Dessa forma, é pertinente atentar para a possibilidade de trombose venosa cerebral em pacientes com fístulas liquóricas, especialmente quando houver mudança do padrão da cefaleia, que passa de ortostática a intensa e contínua.

Temporal bone cerebrospinal fluid fistula is a rare event that results from abnormal communication between the subarachnoid space and the mastoid cells, allowing the cerebrospinal fluid to flow into the pneumatized portions of the temporal bone. It leads to spontaneous intracranial hypotension, characterized by loss of cerebrospinal fluid and orthostatic headache as a clinical manifestation. Spontaneous intracranial hypotension is believed to create favorable hemodynamic conditions to the occurrence of cerebral venous thrombosis, a potentially fatal disorder of difficult diagnosis given the nonspecific clinical signs and symptoms. Therefore, it is pertinent to consider the possibility of cerebral venous thrombosis in patients with cerebrospinal fluid fistulas, especially when there is a modification in the headache pattern from orthostatic to intense and continuous pain.

Inflammatory markers are beneficial in the early stages of cerebral venous thrombosis / Los marcadores inflamatorios son beneficiosos en las primeras etapas de la trombosis venosa cerebral

ABSTRACT Cerebral vein thrombosis (CVT) is a rare but serious cause of acute stroke. Inflammation is a hypothetical etiological factor in CVT. Objective: The aim of this study was to evaluate inflammatory marker levels in CVT patients and compare these with healthy individuals. Methods: This prospective case-control study was conducted with 36 newly-diagnosed CVT patients age- and sex-matched with 40 healthy individuals. The laboratory investigations included a serum hemogram, full biochemistry profiles, high sensitivity C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR). Neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and monocyte-to-HDL cholesterol ratio (MHR) values were calculated and compared between the patients and healthy participants. Results: The mean age was 41.4 ± 11.8 years for patients, and 39.3 ± 12.5 for controls. Lymphocyte, total bilirubin, indirect bilirubin, and HDL levels were significantly lower in CVT patients (p < 0.05), while CRP, and ESR values were significantly higher. In the CVT patients the mean NLR and PLR values were significantly higher than in the control individuals. Smoking rates, alcohol consumption, white blood cell, neutrophil, platelet, and MHR values were similar in both groups (p > 0.05). Conclusions: We suggest that NLR, PLR, CRP, ESR, and bilirubin can be used in clinical practice for prediction of CVT in suspected patients as they are inexpensive parameters and widely available. However, further large-scale studies are required to confirm this relationship.

RESUMEN la trombosis de la vena cerebral (CVT) es una causa rara pero grave de accidente cerebrovascular agudo. La inflamación es un factor etiológico hipotético en CVT. Objetivo: El objetivo de este estudio fue evaluar los niveles de marcadores inflamatorios en pacientes con CVT y compararlos con los sujetos sanos. Métodos: Este estudio prospectivo de casos y controles se realizó con 36 pacientes con TVC recién diagnosticados y 40 sujetos sanos con edad y sexo similares. Las investigaciones de laboratorio incluyeron hemograma sérico, perfiles bioquímicos completos, proteína C-reactiva (CRP) de alta sensibilidad y velocidad de sedimentación eritrocitaria (ESR). Se calculó la relación de neutrófilos a linfocitos (NLR), relación de plaquetas a linfocitos (PLR) y monocitos a HDL-colesterol (MHR) y se compararon entre pacientes y sujetos sanos. Resultados: La edad media fue de 41,4 ± 11,8 años para los pacientes y de 39,3 ± 12,5 para los controles. Los niveles de linfocitos, bilirrubina total, bilirrubina indirecta y HDL fueron significativamente más bajos en pacientes con CVT (p ≤ 0.05), mientras que los valores de CRP y ESR fueron significativamente más altos. En los pacientes con CVT, los valores medios de NLR y PLR fueron significativamente más altos que en los sujetos control. Las tasas de tabaquismo, consumo de alcohol, glóbulos blancos, neutrófilos, plaquetas y MHR fueron similares en ambos grupos (p > 0.05). Conclusiones: Sugerimos que la NLR, la PLR, la CRP, la ESR y la bilirrubina se pueden usar en la práctica clínica para la predicción de la CVT en pacientes sospechosos, ya que son parámetros económicos y están ampliamente disponibles. Sin embargo, se requieren más estudios a gran escala para confirmar esta relación.

Brain computed tomography angiography in postcardiac arrest patients and neurologic outcome

OBJECTIVE: This study aimed to analyze intracranial vessels using brain computed tomography angiography (CTA) and scoring systems to diagnose brain death and predict poor neurologic outcomes of postcardiac arrest patients.METHODS: Initial brain CTA images of postcardiac arrest patients were analyzed using scoring systems to determine a lack of opacification and diagnose brain death. The primary outcome was poor neurologic outcome, which was defined as cerebral performance category score 3 to 5. The frequency, sensitivity, specificity, positive predictive value, negative predictive value, and area under receiver operating characteristic curve for the lack of opacification of each vessel and for each scoring system used to predict poor neurologic outcomes were determined.RESULTS: Patients with poor neurologic outcomes lacked opacification of the intracranial vessels, most commonly in the vein of Galen, both internal cerebral veins, and the mid cerebral artery (M4). The 7-score results (P=0.04) and 10-score results were significantly different (P=0.04) between outcome groups, with an area under receiver operating characteristic of 0.61 (range, 0.48 to 0.72). The lack of opacification of each intracranial vessel and all scoring systems exhibited high specificity (100%) and positive predictive values (100%) for predicting poor neurologic outcomes.CONCLUSION: Lack of opacification of vessels on brain CTA exhibited high specificity for predicting poor neurologic outcomes of patients after cardiac arrest.

Persistent fetal superficial middle cerebral vein: an anatomical study / 대한해부학회지

The superficial middle cerebral vein (SMCV) drains the venous blood from most of the superolateral surface of the brain and drains typically into the cavernous sinus as mentioned in standard textbooks. But the drainage of the SMCV is variable as indicated by various radiological studies. Although variations in the drainage of the SMCV exist, there is a shortage in the literature providing cadaveric evidence for the same. The present study was designed to identify the variations in the drainage pattern of the SMCV in fetal cadavers. During the dissection of formalin-fixed full-term fetuses, deviation in the drainage of the SMCV was observed in five out of 30 cases. In three out of 30 specimens (10%), SMCV was observed draining into superior petrosal sinus; and in two specimens (6.6%) into the transverse sinus. In the remaining specimens, the SMCV drained directly into the cavernous sinus. Knowledge of the variations noted in the present study is essential, not only for diagnosing several diseases involving the cavernous sinus or paracavernous sinuses but also in surgeries of paracavernous sinus lesions and endovascular treatment of arteriovenous fistulas. The SMCV and superior petrosal sinus can be a venous refluxing route in patients with arteriovenous fistulas.

Drainage of the basal vein of Rosenthal into the confluence of sinuses / 대한해부학회지

An adult female was found to have a variation of the left basal vein of Rosenthal after presenting with complaints of headache. The vein, in this case, drained directly into the confluence of sinuses instead of the great vein of Galen. Variation of the basal vein is likely due to the embryonic development of the deep cerebral venous system as primitive structures either differentiate further or regress with age. Such changes may result in the uncommon presentation seen in this case. To our knowledge, this is the first case reported of the basal vein draining into the confluence of sinuses.

Trombosis de Senos Venosos, experiencia en un hospital pediátrico en Buenos Aires, Argentina / Venous sinus thrombosis: Experience at a pediatric hospital in Buenos Aires, Argentina

Introducción: La trombosis de senos venosos cerebrales (TSVC) es infrecuente en pediatría. Está asociada a condiciones como infecciones, deshidratación, fallo renal, traumatismo de cráneo, neoplasias, trastornos hematológicos, etc. Cefalea, vómitos, alteración del sensorio y hemiparesia son los síntomas más frecuentes. El diagnóstico es confirmado por TC con angio y/o RM con angio. La anticoagulación es el tratamiento de elección. Los pacientes suelen evolucionar favorablemente. Materiales y Métodos: Estudio descriptivo observacional de pacientes con TSVC atendidos en el Hospital Garrahan desde 2010 a 2017. Las variables registradas fueron: edad, sexo; manifestaciones clínicas, factores de riesgo; estudios diagnósticos, tratamiento y evolución. Resultados: Se describen 34 pacientes con TSVC. Los adolescentes fueron el grupo mayor. La cefalea fue el síntoma más frecuente. Angio TC, RM y/o angio RM confirmaron el diagnóstico; los senos transverso, sagital superior y sigmoideo fueron los más comprometidos. 21 pacientes tenían patología oncológica y 14 procesos infecciosos. El tratamiento de elección fue la anticoagulación. Tuvieron buena evolución el 82%. Conclusiones: Debemos sospechar esta entidad en dos grupos: el primero formado por lactantes y pre-escolares con patología infecciosa; y un segundo integrado por escolares y adolescentes con patología oncológica, especialmente aquellos que reciben L-ASA.Es importante resaltar el valor de la TC y angio TC para hacer diagnóstico oportuno, resultando accesible las 24 horas en el hospital

Introduction: Cerebral venous sinus thrombosis (CVST) is uncommon in children. CVST is associated with conditions, such as infections, dehydration, renal failure, head trauma, cancer, and hematological disorders. Headache, vomiting, sensory alterations, and hemiparesis are the most common symptoms. Diagnosis is confirmed by angio CT and/or MRA. Anticoagulation is the treatment of choice. Outcome is generally good. Material and Methods: An observational, descriptive study of patients with CVST seen at Garrahan Hospital between 2010 and 2017. The following variables were recorded: age, sex; clinical manifestations, risk factors; diagnostic studies, treatment, and outcome. Results: 34 patients with CVST were studied. Most patients were adolescents. Headache was the most common symptom. Angio CT, MRI, and/or MRA confirmed the diagnosis; the transverse, superior sagittal, and sigmoid sinuses were most frequently affected. Of the patients, 21 had oncological disease and 14 infections. Anticoagulation was the treatment of choice. Outcome was good in 82%. Conclusions: CVST should be suspected in the following two groups: A first group consisting of infants and preschool children with infections and a second group of school-age children and adolescents with cancer, especially those receiving L-ASA. It is important to highlight the role of CT and angio CT for early diagnosis as the study is available day and night at the hospital.

Aneurisma de la vena de Galeno: diagnóstico prenatal y manejo / Vein of Galen aneurysm: prenatal diagnosis and management

RESUMEN Las malformaciones vasculares cerebrales son infrecuentes, dentro de ellas, el aneurisma de la vena de Galeno (AVG) tiene una incidencia de 1 en 25.000 recién nacidos. El ultrasonido obstétrico de rutina ha permitido el diagnóstico prenatal de dicha alteración, permitiendo establecer el pronóstico del recién nacido. En la exploración mediante ultrasonido del cerebro fetal, la presencia de una imagen quística supratentorial con flujo turbulento al Doppler color permite establecer el diagnóstico. La asociación con signos de insuficiencia cardiaca ha mostrado altas tasas de mortalidad neonatal. Se presenta el caso de un feto al que se realiza el diagnóstico prenatal mediante ultrasonido y su confirmación por neuroimagenes al nacimiento.

ABSTRACT Cerebral vascular abnormalities are rare. The vein of Galen aneurysmal malformation (VGAM) has an incidence of 1 in 25,000 newborns. The routine obstetric ultrasound has allowed the prenatal diagnosis and establish the prognosis of the newborn. In the ultrasound examination of the fetal brain, the presence of a supratentorial cystic image with turbulent flow to the color Doppler makes the diagnosis. The association with signs of heart failure have shown high neonatal mortality. We present a case of a fetus with prenatal diagnosis of VGAM by 2D ultrasound and confirmation by neuroimaging at birth.

Características clínicas y radiológicas de una cohorte de niños con trombosis venosa intracraneal / Clinical and radiological features of cerebral venous thrombosis in a children cohort

Resumen: Introducción: La trombosis venosa intracraneal (TVI) es una condición infrecuente y poco estudiada en población pediátrica. Objetivos: Describir y comparar características clínicas/radiológicas de ni ños no neonatos con TVI según edad y analizar la asociación de estas variables con deterioro funcio nal al alta o mortalidad aguda. Metodología: Estudio observacional de una cohorte de niños > 30 días con una primera TVI diagnosticada con imágenes/venografía por resonancia magnética encefálica. Medimos funcionalidad con la escala modificada de Rankin definiendo compromiso funcional mar cado con 3 a 5 puntos. Comparamos los promedios de edades entre grupos con y sin las diferentes variables estudiadas con la prueba U-Mann-Whitney (significancia < 0,05). Realizamos análisis de regresión logística para estimar el riesgo de resultado adverso de cada variable expresado en Odds Ra tios (ORs) e intervalos de confianza (IC) al 95%. Resultados: De 21 pacientes, 42.8% eran niñas, me diana de edad 6,27 años (rango intercuartil: 0,74-10). El promedio de edad fue menor en niños con retardo diagnóstico > 48 h (p = 0,041), puntaje < 12 en la escala coma de Glasgow (p = 0,013), crisis epilépticas (p = 0,041), trombosis de seno recto (p = 0,011) y hemorragia intracraneal (p = 0,049); mientras que fue mayor en niños con síndrome de hipertensión endocraneal (p = 0,008). La presen cia de alguna condición crónica sistémica (OR = 11,2; IC = 1,04-120,4), TVI profunda (OR = 14; IC = 1,3-150,8) e infarto encefálico (OR = 15,8; IC = 1,4-174,2) se asoció a compromiso funcional marcado o mortalidad al alta. Conclusiones: Las características clínicas/radiológicas de la TVI varían según la edad. Las patologías crónicas, compromiso del sistema venoso profundo e infarto encefálico predicen mal pronóstico a corto plazo.

Abstract: Introduction: Cerebral venous thrombosis (CVT) is an uncommon and poorly studied condition in the pediatric population. Objectives: To describe and compare the clinical and radiological features of non-neonatal children with CVT according to age and to analyze their association with functional impairment or mortality at hospital discharge. Methodology: An observational cohort study of chil dren older than 30 days with a first CVT diagnosed with imaging/venography by magnetic resonance (IMR/VMR). We measure functionality with the modified Rankin scale defining marked impairment with 3 to 5 points. We used U-Mann-Whitney test to compare ages averages between groups with and without the different studied variables (significance < 0.05). We used logistic regression analyses to estimate the risk of adverse outcome for each variable expressed in Odds Ratios (ORs) and 95% confidence intervals (CI). Results: Among 21 patients recruited, 42.8% were girls, median age 6.27 years (Interquartile range: 0.74-10). The average age was lower in children with diagnostic delay > 48 hours (p = 0.041), score < 12 in the Glasgow coma scale (p = 0.013), seizures (p = 0.041), sinus rectus thrombosis (p = 0.011), and intracranial hemorrhage (p = 0.049); while it was significantly higher in children with intracranial hypertension syndrome (p = 0.008). The presence of some chro nic systemic condition (OR = 11.2; CI = 1.04-120.4), deep CVT (OR = 14; CI = 1.3-150.8), and brain ischemia (OR = 15.8; CI = 1.4-174.2) was associated with marked functional impairment or mor tality at discharge. Conclusions: Clinical and radiological features of CVT are age-related. Chronic illnesses, deep venous system involvement, and brain ischemia predict adverse short-term outcomes.

Adjuvant Coil Assisted Glue Embolization of Vein of Galen Aneurysmal Malformation in Pediatric Patients / 신경중재치료의학

PURPOSE: Adjuvant coils may offer advantages in flow control during glue embolization of high flow vein of Galen aneurysmal malformation (VGAM) patients but involves specific issues such as feasibility, durability and coil mass effect. The purpose of this study is to assess the outcome of adjuvant coils in addition to transarterial glue embolization for treatment of these patients. MATERIALS AND METHODS: Five pediatric VGAM patients (age range; 11 weeks to 2 yrs 2 mos) with high flow fistulous angioarchitecture were treated with adjuvant coils 1) in the distal feeding artery and/or 2) in the vein of Galen followed by glue embolization of the shunt. The angiographic / clinical outcomes were assessed. RESULTS: Adjuvant coils were deployed in the distal feeding artery (n=3), vein of Galen pouch plus distal feeding artery (n=2). Additional transarterial glue embolization of the fistulae was successfully performed (n=4). Complete occlusion was achieved with coils in one case. Complete occlusion was achieved for all mural type cases (n=4). Residual feeders remained in a case of choroidal type of VGAM. No complications were noted related to the treatment. All patients showed normal development on follow up (range: 7.6 to 88.8 mo, mean 49.3 mo). Initial hydrocephalus improved on follow up despite coil mass effect in dilated vein of Galen. CONCLUSION: Adjuvant coils for flow control with glue embolization may be a safe and effective treatment method for VGAM patients with high flow fistulous feeders.

Neonato con malformación de la vena de Galeno con diagnóstico oportuno: reporte de caso / Timely diagnosis of a Newborn wth Vein of Galen aneurysmal malformation: a case report

RESUMEN La malformación de la vena de Galeno a pesar de ser una patología poco frecuente representa un desafío clínico, por lo que debe ser detectada de forma temprana y manejada por un grupo multidisciplinario, iniciando desde los médicos generales quienes son los encargados de realizar el reconocimiento durante los controles prenatales, y así continuar el manejo de la mano de perinatólogos, pediatras, neonatólogos y radiólogos intervencionistas, todos ellos encargados de supervisar la evolución del paciente y dar tratamiento oportuno para mejorar el pronóstico de vida. A continuación, se presenta un caso clínico cuyo diagnóstico prenatal y manejo medico logró disminuir las complicaciones y comorbilidades resultantes, y así garantizar su preparación para una intervención endovascular posterior.

SUMMARY The vein of Galen malformation is a clinical challenge despite its low frequency, this disease must be detected early during the prenatal age and managed by a multidisciplinary group, beginning with the general physician in the antenatal medical appointment and later receiving treatment with perinatologists, pediatricians, neonatologists and interventional radiologists; all of this in order to ensure a better outcome and neurologic and systemic consequences. This report shows a female patient with an early and accurate antenatal diagnosis of vein of Galen malformation; during the postnatal period multidisciplinary approach and rationale medical management lowered the risk and possible complications, allowing the preparation for a late endovascular intervention.

Clinical Outcome of Nonfistulous Cerebral Varices: the Analysis of 39 Lesions

OBJECTIVE: Cerebral varices (CVs) without an arteriovenous shunt, so called nonfistulous CVs, are very rare, and their etiology and natural course are not well understood. The aim of this study is to evaluate the clinical outcomes of nonfistulous CVs by the analysis of 39 cases.METHODS: From 2000 to 2015, 22 patients with 39 nonfistulous CVs (≥5 mm) were found by searching the medical and radiologic records of our institute. Clinical data and radiological data including numbers, sizes and locations of CVs and associated anomalies were retrospectively collected and analyzed. Previously reported cases in literature were reviewed as well.RESULTS: The mean age of the patients was 21 years (range, 0–78 years). On average, 1.8±1.2 CVs were found per patient. CVs were categorized as either fusiform or saccular depending on their shapes. Two patients had saccular type CVs, seventeen patients had fusiform types, and three patients had both fusiform and saccular CVs. Eight patients had associated compromise of the vein of Galen and the straight sinus. Four of those patients had sinus pericranii, as well. Five patients had CVs that were distal draining veins of large developmental venous anomalies. One patient had associated migration anomaly, and two patients had Sturge- Weber syndrome. Six patients with an isolated cerebral varix were observed. Of the 39 CVs in 22 patients, 20 lesions in 14 patients were followed up in outpatient clinics with imaging studies. The average follow-up duration was 6.6 years. During this period, no neurological events occurred, and all the lesions were managed conservatively.CONCLUSION: Nonfistulous CVs seemed to be asymptomatic in most cases and remained clinically silent. Hence, we suggest conservative management.

Clinical Outcome of Nonfistulous Cerebral Varices: the Analysis of 39 Lesions

OBJECTIVE: Cerebral varices (CVs) without an arteriovenous shunt, so called nonfistulous CVs, are very rare, and their etiology and natural course are not well understood. The aim of this study is to evaluate the clinical outcomes of nonfistulous CVs by the analysis of 39 cases. METHODS: From 2000 to 2015, 22 patients with 39 nonfistulous CVs (≥5 mm) were found by searching the medical and radiologic records of our institute. Clinical data and radiological data including numbers, sizes and locations of CVs and associated anomalies were retrospectively collected and analyzed. Previously reported cases in literature were reviewed as well. RESULTS: The mean age of the patients was 21 years (range, 0–78 years). On average, 1.8±1.2 CVs were found per patient. CVs were categorized as either fusiform or saccular depending on their shapes. Two patients had saccular type CVs, seventeen patients had fusiform types, and three patients had both fusiform and saccular CVs. Eight patients had associated compromise of the vein of Galen and the straight sinus. Four of those patients had sinus pericranii, as well. Five patients had CVs that were distal draining veins of large developmental venous anomalies. One patient had associated migration anomaly, and two patients had Sturge- Weber syndrome. Six patients with an isolated cerebral varix were observed. Of the 39 CVs in 22 patients, 20 lesions in 14 patients were followed up in outpatient clinics with imaging studies. The average follow-up duration was 6.6 years. During this period, no neurological events occurred, and all the lesions were managed conservatively. CONCLUSION: Nonfistulous CVs seemed to be asymptomatic in most cases and remained clinically silent. Hence, we suggest conservative management.

Cranial venous sinus dominance: what to expect? Analysis of 100 cerebral angiographies / Dominância dos seios venosos cranianos: o que esperar? Análise de 100 angiografias cerebrais

ABSTRACT We report an analysis of the cranial venous sinuses circulation, emphasizing morphological and angiographic characteristics. Methods Data of 100 cerebral angiographies were retrospectively analyzed (p = 0.05). Results Mean age was 56.3 years, 62% female and 38% male. Measurements and dominance are shown in the Tables. There was no association between age or gender and dominance. Right parasagittal division of the superior sagittal sinus was associated with right dominance of the transverse sinus, sigmoid sinus and internal jugular vein; and left parasagittal division of the superior sagittal sinus was associated with left dominance of the transverse sinus, sigmoid sinus and internal jugular vein. Conclusion A dominance pattern of cranial venous sinuses was found. Age and gender did not influence this pattern. Angiographic findings, such as division of the superior sagittal sinus, were associated with a pattern of cranial venous dominance. We hope this article can add information and assist in preoperative venous analysis for neurosurgeons and neuroradiologists.

RESUMO Relatamos uma análise da circulação dos seios venoso cranianos, enfatizando características morfológicas e angiográficas. Métodos Dados de 100 angiografias cerebrais foram retrospectivamente analisados (p = 0,05). Resultados Média de idade 56,3 anos, 62% feminino e 38% masculino. Medições e dominância expostos em tabelas. Sem associação entre idade ou sexo e dominância. Divisão parassagittal direita do Seio Sagital Superior (SSS) foi associada com dominância direita do Seio Transverso (ST), Seio Sigmóide (SS) e Veia Jugular Interna (VJI), e divisão parassagittal esquerda do SSS foi associada com dominância esquerda do ST, SS e VJI. Conclusão Um padrão de dominância dos seios venosos do crânio foi encontrado. Idade e sexo não influenciaram esse padrão. Achados angiográficos, como divisão do SSS, foram associados com o padrão de dominância venoso cerebral. Esperamos que este artigo acrescente informações e auxilie na análise venosa pré-operatória para neurocirurgiões e neuroradiologistas.

Cavernomatosis múltiple y aneurisma cerebral trombosado: una asociación inusual / Cavernous haemangioma multiple and brain aneurysm thrombosed: an unusual association

Los cavernomas son malformaciones angiográficamente ocultas, pueden ser únicos o múltiples y esporádica o familiar.Suelen asociarse a otras malformaciones vasculares como las anomalías de drenaje venoso, sin embargo no es habitual su asociación con aneurismas cerebrales. Los aneurismas son malformaciones evidenciables en angiografía, sin embargo cuando se encuentran trombosados puede dificultarse su diagnostico, observándose en algunos casos como lesiones pseudotumorales. Nuestro objetivo es exponer una rara asociación entre cavernomatosis múltiple y aneurisma cerebral trombosado en un paciente pediátrico. Presentamos una paciente de 2 años de edad con diagnóstico de cavernomatosis múltiple y aneurisma cerebral trombosado. Se realiza una revisión de la literatura de ambas entidades y su rara asociación, medianteuna búsqueda exhaustiva en la base de datos de PUBMED Y COCHRANE utilizando las siguientes palabras claves: Cavernous angioma. Familial cavernomatosis. Hemorrhagic stroke. Multiple cavernomatosis. Cerebral aneurysm. Thrombosed aneurysm. Se discute la epidemiologia, diagnóstico y manejo quirúrgico de la cavernomatosis múltiple y sus asociaciones, preconizando fundamentalmente la evaluación pre quirúrgica de estos pacientes. No encontramos ningún caso de asociación entre cavernomatosis múltiple y aneurismas en nuestra revisión bibliográfica. Dado que se pueden presentar como lesiones pseudotumorales, la tomografía computada, resonancia magnética y la angiografía cerebral son métodos fundamentales para llegar a un diagnostico prequirúrgico certero. La indicación quirúrgica debe ser evaluada individualmente en cada paciente, y se debe realizar un seguimiento clínico-imagenologico.

Cavernomas are angiographically occult malformations may be single or multiple and sporadic or familial. Usually associated with other vascular malformations such as venous drainage anomalies, however it is not common its association with brain aneurysms. Aneurysms are into evidence malformations in angiography, however when they meet their diagnosis can be difficult thrombosed observed in some cases as pseudotumoral injuries. Our goal is to present a rare association between multiple cavernous haemangioma and thrombosed cerebral aneurysm in a pediatric patient. We present a patient 2 years old diagnosed with multiple cavernous haemangioma and thrombosed cerebral aneurysm. A review of the literature of both entities and its rare association is done through an exhaustive search in the database PUBMED and COCHRANE using the following keywords: Cavernous angioma. Familial cavernous haemangioma. Hemorrhagic stroke. Multiple cavernous haemangioma. Brain aneurysm. Thrombosed aneurysm. The epidemiology, diagnosis and surgical management of multiple cavernous haemangioma and their associations is discussedessentially advocating the presurgical evaluation of these patients. No case of association between multiple cavernous haemangioma and aneurysms in our literature review. Because can be presented as pseudotumoral lesions, computed tomography, magnetic resonance imaging and cerebral angiography are fundamental methods to reach an certain diagnosis preoperatively. The surgical indication should be evaluated individually for each patient, and should be performed a clinical-imaging follow-up.

Onyx Embolization of Intracranial Pial Arteriovenous Fistula

Intracranial pial arteriovenous fistulas (AVFs) are rare cerebrovascular lesions consisting of one or more arterial connections to a single venous channel without an intervening nidus. Because of the location and high flow dynamics of these lesions, neurosurgeons may have a difficulty deciding between endovascular treatment and open surgical treatment. We report on a patient who underwent endovascular treatment with liquid embolic agent. A 50-year-old man with a decreased mental state and a tonic seizure event was brought to our hospital. Computed tomography (CT) of the brain showed a subcortical hematoma in the right temporoparietal lobe. On three-dimensional cerebral artery CT, there was no evidence of definite cerebrovascular abnormality. Cerebral angiography showed a pial AVF supplied by the right middle cerebral artery with early drainage into the right superior cerebral vein. The patient was treated with Onyx embolization for definitive closure of the fistula. The patient was transferred to the department of rehabilitation medicine two weeks later with grade 4 left hemiparesis. The application of advanced equipment, such as the latest angiography and endovascular tools, will facilitate the correct diagnosis and delicate treatment of pial AVF.

Cerebral venous sinus stenting for pseudotumor cerebri: a review

Pseudotumor cerebri is characterized by headaches, visual field changes, papilledema and an elevated cerebrospinal fluid opening pressure without evidence of an intracranial mass. In the setting of failed medical therapy, surgical options such as ventriculoperitoneal shunts and optic nerve sheath fenestrations are considered. Recently, venous sinus stenting has emerged as a new treatment option for patients with pseudotumor cerebri. We review the role of cerebral venous sinus stenting in the management of patients with medically refractory pseudotumor cerebri. Although long- term studies are needed in this field, the current reports indicate a favorable outcome for preventing vision loss and symptom control

Subtraction MR Venography Acquired from Time-Resolved Contrast-Enhanced MR Angiography: Comparison with Phase-Contrast MR Venography and Single-Phase Contrast-Enhanced MR Venography

OBJECTIVE: To evaluate the image characteristics of subtraction magnetic resonance venography (SMRV) from time-resolved contrast-enhanced MR angiography (TRMRA) compared with phase-contrast MR venography (PCMRV) and single-phase contrast-enhanced MR venography (CEMRV). MATERIALS AND METHODS: Twenty-one patients who underwent brain MR venography (MRV) using standard protocols (PCMRV, CEMRV, and TRMRA) were included. SMRV was made by subtracting the arterial phase data from the venous phase data in TRMRA. Co-registration and subtraction of the two volume data was done using commercially available software. Image quality and the degree of arterial contamination of the three MRVs were compared. In the three MRVs, 19 pre-defined venous structures (14 dural sinuses and 5 cerebral veins) were evaluated. The signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) of the three MRVs were also compared. RESULTS: Single-phase contrast-enhanced MR venography showed better image quality (median score 4 in both reviewers) than did the other two MRVs (p < 0.001), whereas SMRV (median score 3 in both reviewers) and PCMRV (median score 3 in both reviewers) had similar image quality (p ≥ 0.951). SMRV (median score 0 in both reviewers) suppressed arterial signal better than did the other MRVs (median score 1 in CEMRV, median score 2 in PCMRV, both reviewers) (p < 0.001). The dural sinus score of SMRV (median and interquartile range [IQR] 48, 43-50 for reviewer 1, 47, 43-49 for reviewer 2) was significantly higher than for PCMRV (median and IQR 31, 25-34 for reviewer 1, 30, 23-32 for reviewer 2) (p < 0.01) and did not differ from that of CEMRV (median and IQR 50, 47-52 for reviewer 1, 49, 45-51 for reviewer 2) (p = 0.146 in reviewer 1 and 0.123 in reviewer 2). The SNR and CNR of SMRV (median and IQR 104.5, 83.1-121.2 and 104.1, 74.9-120.5, respectively) were between those of CEMRV (median and IQR 150.3, 111-182.6 and 148.4, 108-178.2) and PCMRV (median and IQR 59.4, 49.2-74.9 and 53.6, 43.8-69.2). CONCLUSION: Subtraction magnetic resonance venography is a promising MRV method, with acceptable image quality and good arterial suppression.

Management of Venous Thrombosis in Atypical Location / 대한내과학회지

Venous thrombosis in atypical locations means thrombosis of upper extremity deep vein, cerebral venous sinus, splanchnic vein including portal, hepatic, mesenteric and splenic vein, renal vein, ovarian vein and retinal vein. This thrombosis rarely occurred and could be affected by the involved organ when compared to the incidence and cause of deep vein thrombosis in lower extremity with or without pulmonary embolism. There is a limitation to perform a large-scaled randomized trial for these rare conditions, and several recommendations based on results of small-sized studies and observational registries are available now. Therefore, we need multi-department and international collaboration to test the efficacy and safety of anticoagulation including new oral anticoagulants in the treatment of venous thrombosis in atypical locations.

Trombosis de seno venoso secundaria a traumatismo encéfalo craneano: caso clínico / Cerebral vein thrombosis secondary to closed head injury: Report of one case

Intracranial sinus thrombosis (1ST) after closed head injury is an uncommon but potentially serious complication. It has no correlation with the severity of the injury. The symptoms and clinical course are highly variable. The most frequent but least specific symptom is severe headache. Cerebral lesions and neurologic signs develop in half of patients with IST. We report a 29 year-old male who had an IST after a severe closed head injury. The patient initially developed headache and had later 2 secondarily generalized seizures. The magnetic resonance imaging showed a superior sagittal sinus thrombosis. Anticoagulation with unfractionated heparin and intravenous phenytoin was started. At the moment of this report he is asymptomatic and continues with oral anticoagulants and phenytoin.