Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 15 de 15
Filter
1.
Medicina (B.Aires) ; 83(2): 264-272, jun. 2023. graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1448629

ABSTRACT

Resumen Introducción: La fístula dural arteriovenosa espinal (FDAVE) es una enfermedad vascular frecuentemente subdiagnosticada. El tratamiento puede ser microqui rúrgico o endovascular. Métodos: Estudio retrospectivo de una serie de pa cientes con FDAVE tratados por microcirugía entre los años 2010 y 2021. Fueron evaluados parámetros como edad, sexo, cuadro clínico pre y postoperatorio medido con las escalas de Aminoff-Logue y Rankin modificada (mRs). Los estudios diagnósticos se utilizaron para de terminar nivel lesional y resultados quirúrgicos. Resultados: Se incluyeron doce pacientes (10 hombres y 2 mujeres) con un promedio de edad de 60 años. El tiempo de evolución del cuadro clínico al diagnóstico fue menor a 12 meses salvo un caso de 32 meses. Las FDAVE fueron localizadas, 8 a nivel dorsal, 3 a nivel lumbar y una a nivel sacro. La arteria de Adamkiewicz se identificó en 5 casos en L1, 2 en D12, 2 en D10, 2 en D9 y un caso en D7. De los 12 pacientes operados, 3 fueron embolizados previamente; dos permanecieron estables en su evolución y 10 mejoraron uno o más puntos del mRs. No hubo complicaciones en el postoperatorio. Todos mostraron mejoría del edema medular en reso nancia magnética y la angiografía digital, luego de los 6 meses, fue negativa. El seguimiento promedio fue de 40 meses con un rango de 6 a 122 meses y ningún paciente presentó recidiva de la FDAVE. Conclusión: El tratamiento quirúrgico de las FDAVE es un método muy eficaz, de baja morbilidad y menor tasa de recurrencia comparado con el tratamiento en dovascular.


Abstract Introduction: Spinal dural arteriovenous fistula (SDA VF) is a rare vascular disease, of unknown etiology, fre quently underdiagnosed. Treatment can be microsurgical or endovascular. Methods: Retrospective and monocentric analysis of 12 SDAVF patients treated by microsurgery between 2010 and 2021. Parameters including age, sex, pre and postoperative clinical condition were analyzed according to modified Aminoff-Logue and Rankin scales. Diagnos tic studies such as magnetic resonance imaging (MRI), magnetic resonance angiogram (MRA) and spinal digital subtraction angiography (DSA), were evaluated for lesion level, as were surgical results. Results: Twelve patients (10 men and 2 women), average age: 60 years, were operated. The interval from symptom onset to diagnosis was <12 months in all cases except one (32 months). SDAVF locations were thoracic in 8 cases, between T6 and T12, 3 at lumbar spine (L1- L2) and at S1 in one case, with no difference regarding side. The Adamkiewicz artery was identified in 5 cases at L1, 2 at D12, 2 at D10, 2 at D9 and 1 at D7 (7 left-sided and 5 right-sided). Three of the 12 patients operated had undergone prior embolization. Postoperative neu rological outcomes showed: 2 patients remained stable and 10 improved one or more points on the mRs; no postoperative complications were observed. Follow-up MRI images improved in all cases and spinal DSA was negative at 6 months. Average follow-up was 40 months (range 6 to 122) and no patient presented recurrence. Conclusion: Microsurgical treatment of SDAVF proved to be efficient, with low morbidity and lower recurrence rates compared to endovascular results.

2.
Rev. argent. neurocir ; 35(3): 193-206, sept. 2021. ilus
Article in Spanish | LILACS, BINACIS | ID: biblio-1418358

ABSTRACT

Introducción: el Moyamoya (MM) es una enfermedad crónica esteno-oclusiva de los vasos arteriales intracraneanos asociado al desarrollo secundario de arteriolas dilatadas en la base del cerebro. La historia natural de la enfermedad predispone a infartos y/o hemorragias cerebrales. El objetivo del presente trabajo es mostrar nuestra experiencia en el manejo quirúrgico del MM del adulto. Material y método: se realizó una revisión retrospectiva de 11 pacientes adultos con diagnóstico de MM tratados entre mayo 2014 y mayo 2020. Se analizaron las historias clínicas, estudios diagnósticos, protocolos y videos operatorios. En el preoperatorio se utilizó la escala angiográfica de Suzuki y para la valoración clínica pre y postoperatoria la escala de Rankin modificada. Resultados: se operaron 11 pacientes (8 femeninos), 9 son portadores de EMM y 2 con SMM secundario a NF1 y enfermedad de Hashimoto. Se realizaron 16 procedimientos de revascularización en 11 pacientes (en 5 pacientes la revascularización cerebral fue bilateral), 12 fueron combinados (bpTS más EDMS) y en 4 sólo sinangiosis tipo EDAMS.El aumento del flujo sanguíneo cerebral se constató en todos los casos mediante ADC luego de los 6 meses de la cirugía. La permeabilidad del bpTS se comprobó en 10 de 12 bpTS (83.3 %) y la revascularización de la sinangiosis fue muy buena en todos los pacientes. El 82 % de los pacientes mejoraron un punto o más en la escala de Rankin y un paciente presentó un infarto frontal en TAC postoperatoria sin repercusión clínica. Conclusiones: la evolución natural de la enfermedad conduce al deterioro neurológico por ACV isquémico y/o hemorrágico. En nuestra experiencia, la mejor opción terapéutica en el adulto es la revascularización cerebral combinada porque disminuye la incidencia de ACV con resultados favorables y escasa morbilidad


Introduction: Moyamoya is a chronic steno-occlusive disease of the intracranial vessels associated to the secondary development of dilated arterioles at the base of the brain. The natural history of the disease predisposes to cerebral infarcts and/or hemorrhages. The objective of this paper is to show our experience and surgical management of adult moyamoya. Materials and Methods: retrospective review of 11 adult patients with moyamoya treated from May 2014 to May 2020 was performed. Clinical charts, neuroimaging studies, operative records and surgical videos were analyzed. The Suzuki scale was used as a preoperative score, and the modified Rankin scale was used for pre and postoperative clinical assessment. Results: Eleven patients (8 females) were operated at our Institution: 9 are MMD and 2 MMS secondary to NF1 and Hashimoto disease. We performed 16 cerebral revascularizations in 11 patients (in 5 patients thecerebral revascularization was bilateral), 12 were combined (STA-MCA bypass plus EDMS) and in only 4 EDAMS synangiosis was done.The increase in cerebral blood flow was verified in all cases by follow-up DSA at 6 months. The STA-MCA bypass permeability was verified in 10 of 12 cases (83.3%) and the revascularization by synangiosis was demonstrated in all patients. Clinical follow-up showed that 82 % of the patients improved one point or more on the modified Rankin scale and one patient presented a frontal infarction on postoperative CT without clinical worsening. Conclusions: The natural course of the disease leads to neurological deterioration due to ischemic and hemorrhagic stroke. According to our experience, the best therapeutic option in adults is combined cerebral revascularization because it decreases the incidence of stroke with good results and low morbidity


Subject(s)
Cerebral Revascularization , Cerebral Infarction , Stroke , Cerebrum , Hemorrhagic Stroke
3.
Rev. argent. neurocir ; 34(4): 289-299, dic. 2020. ilus, tab
Article in Spanish | LILACS, BINACIS | ID: biblio-1150438

ABSTRACT

Introducción: la fístula dural arteriovenosa espinal (FDAVE) es una enfermedad vascular rara, de etiología desconocida y frecuentemente subdiagnosticada. El tratamiento puede ser microquirúrgico o endovascular. Material y Método: Análisis retrospectivo de una serie de 8 pacientes consecutivos con FDAVE tratados por microcirugía entre 2010 y 2020. Fueron evaluados parámetros como edad, sexo, cuadro clínico pre y postoperatorio medido con las escalas de Aminoff-Logue y Rankin modificada. Los estudios diagnósticos con RMN (Resonancia Magnética Nuclear), ARM (Angio Resonancia Magnética) y ADM (Angiografía Digital Medular) se utilizaron para determinar nivel lesional y resultados quirúrgicos. Resultados: Fueron operados 8 pacientes (7 masculinos y 1 femenino) con un promedio de edad de 58 años. El tiempo de evolución del cuadro clínico al diagnóstico fue menor a 12 meses salvo un caso de 32 meses. Las FDAVE fueron localizadas en: 6 a nivel dorsal entre D6 y D12, una en L2 y la última en S1 (5 derechas y 3 izquierdas). La arteria de Adamkiewicz se identificó en: 4 casos en L1, 2 en D12, 1 en D10 y un caso en D7 (6 izquierdas y 2 derechas). De los 8 pacientes operados, 3 fueron embolizados previamente. La evolución postoperatoria del cuadro neurológico fue: 2 de 8 permanecieron estables y 6 de 8 mejoraron uno o más puntos en la escala de Rankin modificada; no hubo complicaciones en el postoperatorio. Todos los pacientes mejoraron las imágenes en RMN diferida y la ADM luego de los 6 meses fue negativa. El seguimiento promedio fue de 48 meses con un rango de 11 a 116 meses, ningún paciente presentó recidiva de la FDAVE. Conclusiones: El tratamiento quirúrgico de las FDAVE es un método muy eficaz, de baja morbilidad y menor tasa de recurrencia comparado con el tratamiento endovascular.


Introduction: Spinal dural arteriovenous fistula (SDAVF) is a rare vascular disease, of unknown etiology and frequently underdiagnosed. Treatment can be microsurgical or endovascular. Material and Method: Retrospective analysis of a series of 8 SDAVF patients treated by microsurgery between 2010 and 2020. Parameters including age, sex, pre and postoperative clinical condition were analyzed according to modified Aminoff-Logue and modified Rankin scales. Diagnostic studies such as MRI (Magnetic Resonance Imaging), MRA (Magnetic Resonance Angiogram) and spinal DSA (Digital Subtraction Angiography), were evaluated for lesion level, as were surgical results. Results: Eight patients (7 male and 1 female), average age of 58 years were operated. The interval from symptom onset to diagnosis was less than 12 months in all cases except one (32 months). SDAVF locations were thoracic in 6 cases between T6 and T12, at L2 in one and at S1 in one case (5 on the right and 3 on the left). The Adamkiewicz artery was identified in: 4 cases at L1, 2 at D12, 1 at D10 and in one case at D7 (6 left-sided and 2 right-sided). Three of the 8 patients operated had undergone prior embolization. Postoperative neurological outcomes showed: 2 patients remained stable and 6 had improved one or more points on the modified Rankin scale; no postoperative complications were observed. Follow-up MRI images improved in all cases and spinal DSA was negative at six months. Average follow-up was 48 months (range 11 to 116 months), no patient presented recurrence. Conclusions: Microsurgical treatment of SDAVF proved to be efficient, with low morbidity and lower recurrence rates compared to endovascular results.


Subject(s)
Humans , Fistula , Spinal Cord Diseases , Vascular Diseases , Angiography , Central Nervous System Vascular Malformations , Microsurgery
4.
Rev. argent. neurocir ; 34(1): 63-64, mar. 2020. ilus
Article in Spanish | LILACS, BINACIS | ID: biblio-1151255

ABSTRACT

Introducción: El hemiespasmo facial primario (HFP) se produce por la hiperexcitabilidad del nervio facial y sus núcleos de origen como consecuencia de la compresión vascular. La cirugía de descompresión neurovascular se plantea como alternativa al tratamiento médico refractario. Objetivos: Presentar nuestra experiencia respecto a esta patología. Material y métodos: Se realizó una revisión retrospectiva de pacientes operados por HPF refractarios a tratamiento médico en nuestra institución en los últimos 5 años (periodo 2014-2019). Todos fueron intervenidos vía retrosigmoidea. Se evaluaron datos demográficos, evaluación prequirúrgica y evolución postoperatoria. Resultados: Se operaron 4 pacientes bajo técnica microquirúrgica asistido por endoscopía. Edad promedio 52 años (rango 41-61) con una relación femenino masculino 3:1. El 25% (n=1) presentaba paresia facial grado 2 (HB) en el prequirúrgico. No hubo cambios en cuanto al grado de paresia facial en el postoperatorio en ningún caso. Sólo un paciente registró caída leve en la audiometría postquirúrgica. El 75% (n=3) resolvieron el HFP. Conclusión: Si bien nuestra serie es acotada a un número reducido de pacientes, la cirugía descompresiva microvascular es efectiva como alternativa al tratamiento médico refractario del HFP.


Introduction: Primary hemifacial spasm (PHS) is defined as the hyper excitability of the nerve due to the compression of the facial nerve or its nuclei, most commonly by a vascular structure. The surgical indication for microvascular decompression is resistance to pharmacological treatment or severe adverse effects. Objectives: To present our experience in the surgical treatment of this pathology with this novel technique. Materials and methods: We retrospectively reviewed all patients (n=4) with a diagnosis of PHS, who underwent endoscope-assisted microvascular decompression surgery in our institution during the last 5 years. In all the cases, we choose the retrosigmoid approach. We evaluated demographic data, preoperative evaluation, and post-operative evolution. Results: Endoscope-assisted microvascular decompression was the surgical technique in all the patients. The median age was 52 years, the female-male ratio of 3:1. Only one patient presented a grade 2 facial palsy (House-Brackmann scale) in the preoperative evaluation; there were no significant changes in the post-operative evaluation in any patient. Only one patient experienced worsening in the post-operative audiometric follow-up. The 75% (n=3) of the patients solved the HFP after the surgical treatment. Conclusion: By taking into account our experience in this small case series, we can support the concept that endoscope-assisted microvascular decompression is as effective as the open surgical treatment of the PHS.


Subject(s)
Hemifacial Spasm , Skull Base , Decompression , Endoscopy , Facial Nerve , Facial Paralysis , Microvascular Decompression Surgery
5.
Arq. neuropsiquiatr ; 76(3): 139-144, Mar. 2018. tab, graf
Article in English | LILACS | ID: biblio-888366

ABSTRACT

ABSTRACT Background Primary central nervous system lymphomas (PCNSL) are infrequent. The traditional treatment of choice is chemotherapy. Complete resections have generally not been recommended, because of the risk of permanent central nervous system deficits with no proven improvement in survival. The aim of the current study was to compare survival among patients with PCNSL who underwent biopsy versus surgical resection. Methods A retrospective study was conducted on 50 patients with a confirmed diagnosis of PCNSL treated at our center from January 1994 to July 2015. Results Patients in the resection group exhibited significantly longer median survival time, relative to the biopsy group, surviving a median 31 months versus 14.5 months; p = 0.016. Conclusions In our series, patients who had surgical resection of their tumor survived a median 16.5 months longer than patients who underwent biopsy alone.


RESUMO Introducción Los linfomas primarios del sistema nervioso central (LPSNC) son infrecuentes. Tradicionalmente el tratamiento de elección es la quimioterapia. Existe un paradigma de no indicar resección, por el riesgo de déficit neurológico sin aumento de la sobrevida. El objetivo del presente estudio es comparar la sobrevida de pacientes con LPSNC sometidos a biopsia versus resección. Métodos Estudio retrospectivo que incluye 50 pacientes con diagnóstico confirmado de LPSNC tratados en nuestra Institución desde enero de 1994 hasta julio de 2015. Resultados Los pacientes del "grupo resección" mostraron una sobrevida media significativamente mayor respecto a los del "grupo biopsia"; 31 meses versus 14,5 meses respectivamente, p = 0,016. Conclusiones En nuestra serie, los pacientes que con resección quirúrgica de su tumor tuvieron una sobrevida media de 16,5 meses superior que los pacientes biopsiados.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Central Nervous System Neoplasms/surgery , Lymphoma/surgery , Time Factors , Biopsy , Retrospective Studies , Risk Factors , Treatment Outcome , Central Nervous System Neoplasms/immunology , Central Nervous System Neoplasms/mortality , Central Nervous System Neoplasms/pathology , Kaplan-Meier Estimate , Immunocompetence , Lymphoma/immunology , Lymphoma/mortality , Lymphoma/pathology
6.
Rev. Asoc. Argent. Ortop. Traumatol ; 82(1): 59-64, mar. 2017. []
Article in Spanish | LILACS, BINACIS | ID: biblio-842511

ABSTRACT

El quiste neuroentérico espinal es una lesión de rara presentación, sólo existen reportes de casos aislados. Representa del 0,3% al 1,3% de los tumores espinales según las distintas citas bibliográficas. Suele afectar el canal espinal, especialmente a nivel cervical bajo y torácico superior. Aproximadamente el 90% de estos quistes se localiza en el espacio intradural/ extramedular, mientras que el 10% restante se divide entre la localización intradural/intramedular o extradural. El tratamiento de los quistes neuroentéricos intraespinales es quirúrgico, mediante la resección lo más radical posible. Los resultados son favorables y las tasas de recurrencia después de la resección parcial son bajas. Nivel de Evidencia: IV


Spinal neurenteric cyst is a rare lesion, only anecdotal case reports have been published. The neurenteric cyst accounts for 0.3 to 1.3% of spinal axis tumors. It affects the inferior cervical and superior thoracic spine level. Approximately 90% of neurenteric cysts are located in the intradural/extramedullary compartment while the remaining10% are divided between an intradural/intramedullary or extradural location. Surgical intervention with radical resection is the best treatment. The outcome is favorable and the recurrence rates after partial resection are low. Level of Evidence: IV


Subject(s)
Adolescent , Spinal Neoplasms/surgery , Lumbar Vertebrae/surgery , Neural Tube Defects/surgery
7.
Rev. argent. neurocir ; 30(3): 96-102, ago. 2016. ilus, tab
Article in Spanish | LILACS | ID: biblio-982821

ABSTRACT

Introducción: Los meningiomas intraventriculares tienen una baja prevalencia. Dado su origen en plexos coroideos o tela coroidea presentan predilección por los ventrículos laterales. Suelen ser de gran tamaño al momento diagnóstico y de histología preponderantemente benigna. Materiales y Métodos: Realizamos revisión retrospectiva de historias clínicas de pacientes operados de estos tumores durante el período 1999-2014, en nuestra institución junto a una revisión bibliográfica. Resultados: Se operaron siete pacientes con meningiomas intraventriculares de los cuales seis tuvieron localización atrial, cinco fueron derechos y uno izquierdo; el caso restante corresponde a una lesión del IV ventrículo. Todos fueron de sexo femenino con edad promedio de 49 años. La presentación clínica prevalente fue cefalea, trastorno cognitivo leve y hemianopsia homónima en los tumores supratentoriales. Disfunción trigeminal y facial periférica izquierda, disfagia y ataxia troncal se observaron en la lesión del IV ventrículo. Se realizaron dos abordajes parietales, uno precuneal, tres temporales y un abordaje telovelar. En el postoperatorio, 2 pacientes presentaron hemianopsia homónima secuelar. Dos pacientes presentaron signos de atipia por lo cual recibieron radioterapia postoperatoria. Conclusión: Dada su escasa prevalencia el objetivo quirúrgico en meningiomas intraventriculares es la remoción completa con la menor morbilidad postoperatoria posible. En los casos atípicos sugerimos realizar radioterapia postoperatoria para reducir el riesgo de recidivas.


Introduction: Intraventricular meningioma’s have a low prevalence. Given its origin in choroid plexus or tela choroidea presents predilection by the lateral ventricles. They tend to be large at the time of diagnosis and predominantly benign histology. Methods: We performed retrospective review records of patients operated of intraventricular meningioma’s during the period 1999-2014 in our institution with a review of the literature. Development: We operated seven patients with these tumors, six with atrial location, five were right and one left; the remaining case corresponds to a lesion in the fourth ventricle. All were female with an average age of 49 years. The prevalent clinical presentation was headache, mild cognitive disorder and homonymous hemianopsia in supratentorial tumors. Trigeminal and peripheral left facial dysfunction, dysphagia and central ataxia were observed in the lesion of the fourth ventricle. Parieto-occipital two approaches, one interhemispheric precuneal approach, three temporal and a telovelar approach were carried out. Postoperatively, two patients had homonymous hemianopsia. Two patients presented signs of atypia which received postoperative radiation therapy.Conclusion: Given its low prevalence the surgical goal in intraventricular meningiomas is complete removal with less possible postoperative morbidity. In atypical cases we suggest to perform postoperative radiotherapy to reduce risk of recurrence.


Subject(s)
Humans , Choroid Plexus , Fourth Ventricle , Lateral Ventricles , Meningioma , Neoplasms , Third Ventricle
8.
Rev. argent. neurocir ; 25(2): 63-69, abr.-jun. 2011. ilus
Article in Spanish | LILACS | ID: lil-605493

ABSTRACT

Objetivo: reportar el primer caso de EVN atípico con siembra neoplásica por trayecto de biopsia y diseminación craneoespinal. Descripción: paciente de 19 años con debilidad y parestesias en hemicuerpo derecho de dos meses de evolución evidenciando en resonancia magnética (IRM) tumor talámico izquierdo sin realce tras el contraste. Intervención: la biopsia esterotáctica revela un tumor redondo-celular compatible con oligodendroglioma. Se indica radioterapia y quimioterapia. Al tercer mes presenta hidrocefalia por progresión tumoral. Se coloca shunt de LCR. Al año se intensifica el síndrome talámico, presenta trastornos oculomotores y esfinterianos. IRM evidencia compromiso leptomeníngeo difuso con implantes nodulares espinales, en tronco encefálico y a nivel de abordaje estereotáctico frontal izquierdo compatible con siembra por trayecto de biopsia. Craneotomía centrada en trepanación previa permite resecar tejido neoplásico reinterpretado anatomopatológicamente como EVN atípico diseminado con Ki67>30%. Conclusión: los oligodendrogliomas representan el principal diagnóstico diferencial imagenológico y anatomopatológico de EVN. Se presume su origen en células precursoras biopotenciales de matriz germinal periventricular con capacidad de diferenciación glial y neuronal que explicaría su capacidad excepcional para la diseminación leptomeníngea. El Ki67 es el principal factor pronóstico evolutivo en neurocitomas. Aquellos con Ki67>2% (atípicos) requieren monitoreo estricto por mayor riesgo de recurrencia y diseminación.


Subject(s)
Biopsy , Neurocytoma
9.
Rev. argent. neurocir ; 24(4): 169-180, oct.-dic. 2010. ilus
Article in Spanish | LILACS | ID: lil-590614

ABSTRACT

Objetivo. Presentar nuestra experiencia en el tratamiento de los Schwannomas vestibulares quísticos comparándolos con lesiones sólidas. Material y método. Se evaluaron en forma retrospectiva los síntomas de presentación clínica, tasas de preservación facial, grado de resección quirúrgica, complicaciones postoperatorias y hallazgos histológicos de los Schwannomas quísticos pareados en base al tamaño tumoral con un grupo de lesiones sólidas. Resultados. Durante el período junio 1995 julio 2010, 27 pacientes con Schwannomas quísticos se operaron en nuestro Departamento. El diámetro promedio fue de 29,6 mm. Los síntomas de presentación clínica más frecuentes fueron la hipoacusia, inestabilidad en la marcha y parestesias faciales. Al año de cirugía, el 74% de los pacientes tenían función facial HB I-III sin diferencias significativas con el grupo de lesiones sólidas. La remoción completa fue 55,5% y 85% de los pacientes en las lesiones quísticas ysólidas respectivamente. Conclusión. Los Schwannomas quísticos deben ser evaluados en forma separada de las lesiones sólidas debido a que pueden crecer rápidamente, presentar mayor complejidad quirúrgica y desarrollar complicaciones postoperatorias con mayor frecuencia.


Objective. To present our experience treating this rare tumor variant.Material and Method. Retrospective evaluation of an institutional cystic vestibular schwannoma series, based on initial symptoms, rate of facial preservation, extent of surgical resection, postoperative complication rate and cystic lesion quantificationon histology in comparison to solid tumor type. Results. During the period June 1995-July 2010, 27 cysticschwannomas were operated on at the FLENI neurological Institute. Mean tumor diameter was 29,6mm. The most frequent presenting symptoms included hypoacusia, unsteadiness and facial paresthesias. One year after surgery, 74% of patients presented facial function HB I-III, showing no statistical difference in comparison to solid lesions. Complete surgical resectionwas possible in 55, 5% of the cystic and 85% of the solid tumor groups, respectively. Conclusion. Cystic vestibular schwannomas should be identified separately from vestibular schwannomas in general, particularlybecause they often undergo more rapid expansion, and may present greater surgical risk as well as higher rates ofpostoperative complications.


Subject(s)
Cysts , General Surgery , Neuroma, Acoustic
10.
Rev. argent. neurocir ; 24(3): 101-103, jul.-sept. 2010. ilus
Article in Spanish | LILACS | ID: lil-583689

ABSTRACT

Objetivo. Describir dos casos de hematoma cerebeloso después de cirugía supratentorial: un hematoma subdural (caso 1) y un higroma subdural (caso 2). Material y método. Análisis de las historias clínicas e imágenes de dos pacientes evaluadas en el Hospital de Clínicas y en el Hospital Español en 2009. Resultados. Caso 1: Paciente masculino de 70 años, con hemiparesia izquierda y lúcido que después de la evacuación de un hematoma subdural sufrió una hemorragia sobre las folias cerebelosas y presentó hematoma vermiano de 2,5 cm a las 72 horas de la cirugía. La evolución fue desfavorable con un súbito déficit neurológico e insuficiencia cardiorrespiratoria. Caso 2: Paciente femenino de 40 años, con un hematoma vermiano asintomático de 1 cm encontrado en la TAC de control a las 72 horas de la cirugía. Evoluciónsin déficit neurológico. Conclusión. La cirugía supratentorial con pérdida abundante de LCR sería el factor más importante de esta complicación. Elhiperdrenaje de LCR produce relajación del cerebelo con la consiguiente tracción y rotura de las venas puente que van a la tienda, provocando hematomas subdurales e infartos venosos hemorrágicos del cerebelo. Estos dos casos reportados fueron operados sin drenaje subdural aspirativo con pérdida abundante de LCR durante 72 y 48 horas respectivamente, que es el patrón etiológico más frecuente según la mayoría de los autores.


Subject(s)
General Surgery , Hematoma
11.
Rev. argent. neurocir ; 21(3): 104-107, jul.-sept. 2007. ilus, tab
Article in Spanish | LILACS | ID: lil-511267

ABSTRACT

Objective. To present our experience in the management of olfactory goove meningiomas analyzing their clinical presentation, radiological features, surgical outcomes and postoperative complications. Methods. A retrospective study was conducted by analyzing the charts of the patients including surgical records, imaging studies and histopatological records. Results. A total of 304 meningiomas were operated on betwiin 1994-2007 in our department. There were 16 patients with olfactory groove meningiomas including 9 women and 7 men. A men age of 52.8 yr (age range 21-72yr). The most frequent symptom was a higher function impairment (5pt). Olfactory simptons were infrequent in our series. The average maximum tumoral diameter was 5.8 cm. The approaches used were the subfrontal, bifrontal craniotomy with orbital osteotomy, pterional and frontolateral. CSF fistula was the most frequent complication. Perioperative mortality was recorded in two cases. No relation with surgery was demonstrated. The mean follow-up period was 78 months. Conclusion. The olfactory groove meningiomas reaches a big size due to delay in diagnosis. The best treatment is the surgical excision with a surgical approach wich provides quick access to the tumor with the lesser morbimortality possible.


Subject(s)
Meningioma , Meningioma/surgery , Radiology
12.
Rev. argent. neurocir ; 21(3): 108-110, jul.-sept. 2007. ilus
Article in Spanish | LILACS | ID: lil-511268

ABSTRACT

Objective. To present the clinical and radiologic features and surgical results in the management of dermal and epidermal cysts treated in our institution between 1997 and 2006. Material a method. Age, sex, way of presentation, location, radiologic features, surgical technique and compications of 15 epidermal and 1 dermal tumors diagnosed between may 1997 and October 2006, were retrospectively assessed. Results. Mean age: 43 yrs. Most frequent clinical manifestation: headache. Most tumors were at CPA. All resections were done with microsurgical technique. There were 3 cases of chemical meningitis that resolve without sequel. Discussion. Dermal and epidermal cysts are originated by inclusion of ectodermic material at the moment of occlusion of the neural tube. They represent the 0.3-1.5 of intracranial tumors beeng dermal 5-9 times less frequent. The most frequent location of epidermal cysts is at the CPA while dermal are more frequent in the midline. Clinical fatures depend on location. MRI is the gold standard for diagnosis, epecially the DWI sequence. CT is important for the detection of bone invasion. Treatement is so extensive as possible surgical resection, difficult, sometimes because of strong adhesions to eloquent structures. Conclusion. Dermal and epidermal cysts are high fat content lesions, that produce edherence to neural structures. Surgical excision is the election tratement.


Subject(s)
Dermoid Cyst/surgery , Dermoid Cyst/radiotherapy , Epidermal Cyst/surgery , Epidermal Cyst/radiotherapy , Magnetic Resonance Imaging , Microsurgery
13.
Rev. argent. neurocir ; 21(3): 123-126, jul.-sept. 2007. ilus
Article in Spanish | LILACS | ID: lil-511273

ABSTRACT

Objective: To analyze the anatomical and semiological features of the syndrome of the SMA through the presentation of a patient. Description: 55 female. Two yrs history of generalized convultions. Left frontomedial lesion biopsied outwards. PA: low grade astrocytoma. Medically trated until feb 2007. Sudden headache and right sided hemiparesis with crural predominance. Hoffmann and slight right hyper reflexia. MRI: expansion of primary lesion with intra lesional hemorrhage. Surgical resection. PA: mixed anaplastic glioma. The inmediate postoperative status was of a right CB plejia with severe apathy and abulia with right spatial hemineglect and hypofluent and anomic language, with preserved repetition and comprehension. Total recovery of paresis and language except when stressed. Discussion: The SMA is limited by cingulated cortex inferiorly, PMC posteriorly, and vertex surperiorly. The anterior border is not well defined. SMA activates before the PMC, during planification and iniciation of movement. Is connected with the PMC, spinal cord neurons, basal ganglia and contralateral SMA. By intraoperative stimulation it could be established the somatotopic organization of SMA, with the hindlimb posterior the forelimb intermediate and face anterior. Before the facial representation is the language area in the dominant hemisphere. Epileptogenic crisis originated in this area produce abduction and supination of the contralateral forelimb with deviation of the head to the same side. The syndrome of lesion of SMA includes: global akinesis, proximal predominance of motor deficit, with secuelar difficulty for the fine movements of hands an a quick recuperation (days to weeks). Conclusion: The syndrome of the supplementary motor area is well recognized after medial frontal lobe surgery. Its features include reduction of spontaneous movements in the contralateral limbs and speech deficit. The impairment of volitional movements is the main finding...


Subject(s)
Brain Neoplasms , Frontal Lobe/surgery , Magnetic Resonance Imaging , Radiation Oncology
14.
Rev. argent. neurocir ; 18(3): 149-151, jul.-sept. 2004. ilus
Article in Spanish | LILACS | ID: lil-390638

ABSTRACT

Objective: to present a case of a patient with "os odontoideum" treated by posterior occipitocervical fusion. Description: we report a case of a patient suffering posterior cervical pain, left brachialgia, lip numbness and paresthesias in the tip of the tongue. A compressive "os odonteideum" was found which was treated by a posterior approach. The patient did well showing symptoms relief. Intervention: the patient was operated through a posterior approach and an occipitocervical (2) fixation and arthrodesis with iliac bone graft were reformed. Conclusion: patients harboring compressive "os odontoideum" and / or C1-C2 instability associated or not to neurological symptoms should be surgically treated. The occipitocervical fixation and fusion through a posterior approach offered stability and allowed symptoms improvement in some cases


Subject(s)
Humans , Female , Cervical Vertebrae , Fracture Fixation , Joint Instability , Odontoid Process , Spinal Cord Compression
15.
Rev. argent. neurocir ; 17(3): 147-149, jul.-sept. 2003. ilus
Article in Spanish | LILACS | ID: lil-390608

ABSTRACT

Objectives: To describe a spinal-pelvic fixation system in a patient with a primary sacral neoplasma that caused spinal-pelvic instability. Description: A 26 years old female patient harboring a sacral tumor was treated two years before by surgery with a good clinical outcome. Intervention: The tumor recurred and it was successfully resected in a second surgery that required fixation by using a modified Galveston technique and bony fusion. Two years later, she suffered a new recurrence without neurological deficit.Conclusion: In patients harboring sacral neoplasms associated to spinal pelvic instability, tumor resection followed by modified Galveston technique is the best way to achieve stabilization and symptomatic relief


Subject(s)
Humans , Adult , Female , Sacroiliac Joint , Giant Cell Tumors
SELECTION OF CITATIONS
SEARCH DETAIL