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1.
Arq. neuropsiquiatr ; 67(3b): 876-881, Sept. 2009. ilus, graf, tab
Article in English | LILACS | ID: lil-528680

ABSTRACT

Treatment of intracranial tumoral lesions is related to its correct histological diagnostic. We present a retrospective analysis of 32 patients submitted to 36 cerebral biopsies using neuronavigation and 44 patients using frame-based stereotaxy. Mean age was 46.6 and 49.3 years old respectively. Sex distribution in both groups was 50 percent for each. Most of lesions were lobar in both groups. Diagnostic yielding was 91.7 percent and 83.4 percent, respectively (p=0.26). We found in the postoperative CT scans intracranial hemorrhages in 13.8 percent cases of the first group and 9.8 percent cases in the second. Most of them were mild post-operative hemorrages in the biopsy site. There was one death related to the procedure in each group. Astrocytomas and metastatic adenocarcinomas were the most frequent diagnosis. Diagnostic yielding and the number of postoperative hemorrhage and death were similar on both groups and the same found in the literature.


O manejo das lesões intracranianas tumorais está relacionado ao seu diagnóstico histológico adequado. Foi realizado estudo retrospectivo com 32 pacientes submetidos a 36 biópsias cerebrais por neuronavegação e 44 pacientes por estereotaxia com arco. A idade média foi 46,6 e 49,3 anos respectivamente. Nos dois grupos a distribuição por sexo foi 50 por cento para cada. A maioria das lesões biopsiadas eram lobares nos dois grupos. A positividade diagnóstica foi 91,7 por cento para neuronavegação e 83,4 por cento para a estereotaxia com arco, respectivamente (p=0,26). Identificou-se hemorragia intracraniana na TC pós-operatória em 13,8 por cento dos casos no primeiro grupo e em 9,8 por cento no segundo, a maioria de pequena monta sem provocar piora neurológica. Ocorreu uma morte relacionada ao procedimento em cada grupo. Os diagnósticos mais freqüentes foram astrocitomas e adenocarcinomas metastáticos. A positividade diagnóstica, taxas de hemorragia pós-operatória e de mortalidade foram equiparáveis estatisticamente entre os dois métodos e se assemelham com as descritas na literatura.


Subject(s)
Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , Female , Humans , Male , Middle Aged , Young Adult , Biopsy/methods , Brain Neoplasms/pathology , Intracranial Hemorrhages/etiology , Stereotaxic Techniques , Biopsy/adverse effects , Brain Neoplasms/surgery , Neuronavigation/adverse effects , Neuronavigation/methods , Retrospective Studies , Stereotaxic Techniques/adverse effects , Tomography, X-Ray Computed , Young Adult
2.
Arq. neuropsiquiatr ; 67(1): 74-77, Mar. 2009. tab
Article in English | LILACS | ID: lil-509111

ABSTRACT

OBJECTIVE: In the majority of cases, the correct treatment of brain lesions is possible only when the histopathological diagnosis is made. Several deep-seated lesions near eloquent areas are not safely approached by the classical neurosurgical procedures. These patients can get benefit by a minimally invasive procedure. METHOD: We present a series of 176 consecutive patients submitted to stereotactic biopsies due to a great variety of brain lesions. RESULTS: Histological diagnosis found in this series: glioma in 40.1 percent of the patients, other neoplasms in 12.2 percent and infectious or inflammatory diseases in 29.1 percent. The result was inconclusive in 5.2 percent of the procedures. One patient died (0.6 percent) and two (1.2 percent) presented operative complications. The criteria, advantages and risks of the stereotactic biopsies are discussed. CONCLUSION: The efficacy of the method is adequate and morbid-mortality rates were low.


OBJETIVO: O diagnóstico anatomopatológico das lesões encefálicas é muitas vezes necessário para a instituição do tratamento adequado. Entretanto, muitas lesões localizadas profundamente no encéfalo ou em centros nervosos de grande importância funcional não podem ser acessadas sem riscos, com a aplicação dos procedimentos neurocirúrgicos habituais. MÉTODO: Apresentamos uma série de 176 doentes submetidos a biópsias estereotáxicas de lesões encefálicas. RESULTADOS: Em 40,1 por cento dos casos, o diagnóstico foi de glioma, em 12,2 por cento de outras neoplasias e em 29,1 por cento, de doenças infecciosas ou inflamatórias. O resultado foi inconclusivo em 5,2 por cento dos doentes. Um (0,6 por cento) doente faleceu e dois (1,2 por cento) apresentaram graves complicações operatórias. Os critérios de seleção, as vantagens e os riscos da biópsia estereotáxica são discutidos. CONCLUSÃO: A eficácia do método é boa e a morbimortalidade das biópsias estereotáxicas é baixa.


Subject(s)
Adolescent , Adult , Aged, 80 and over , Child , Humans , Male , Middle Aged , Young Adult , Biopsy/methods , Brain Neoplasms/pathology , Brain/pathology , Glioma/pathology , Stereotaxic Techniques , Biopsy/adverse effects , Biopsy/mortality , Brain Neoplasms/surgery , Glioma/surgery , Stereotaxic Techniques/adverse effects , Stereotaxic Techniques/mortality , Young Adult
3.
Pan Arab Journal of Neurosurgery. 2005; 9 (1): 61-64
in English | IMEMR | ID: emr-74279

ABSTRACT

In a series of 300 patients who had stereotactic biopsy procedures, a case of germinoma developed a second lesion one year following conventional radiotherapy course. This lesion appeared directly along the biopsy trajectory at a distance from the primary tumour showing mostly iatrogenic seeding


Subject(s)
Humans , Male , Brain Neoplasms , Biopsy , Neoplasm Seeding , Iatrogenic Disease , Stereotaxic Techniques/adverse effects
4.
Arq. neuropsiquiatr ; 58(3B): 830-5, Sept. 2000.
Article in English | LILACS | ID: lil-273107

ABSTRACT

Twenty-three patients with Parkinson's disease underwent stereotactic surgery. To study the long-term motor performance, the patients were evaluated at the pre-operative period and at the 1st, 3rd, 6th, and 12th post-operative months, with the following scales: Unified Parkinson's Disease Rating Scale (UPDRS) motor score and Larsen's Scale for Dyskinesias. The patients under levodopa therapy were assessed both in "on" and "off" periods. Fourteen unilateral ventrolateral thalamotomies (VLT), 4 unilateral posteroventral pallidotomies (PVP), 2 bilateral PVP, and 3 VLT with contralateral PVP were performed. The motor improvement was significant and long-lasting in the "off" period, except for 2 patients. The "on" period quality improved, mainly due to the control of dyskinesias. The improvement of dyskinesias was long-lasting for the majority of the patients. There was no significant decrease in the levodopa dose. Three patients showed permanent complications, but none was severe


Subject(s)
Humans , Middle Aged , Adult , Globus Pallidus/surgery , Motor Activity , Parkinson Disease/surgery , Stereotaxic Techniques , Thalamus/surgery , Analysis of Variance , Antiparkinson Agents/therapeutic use , Follow-Up Studies , Levodopa/therapeutic use , Parkinson Disease/drug therapy , Stereotaxic Techniques/adverse effects , Treatment Outcome
5.
Rev. cuba. cir ; 39(3): [173-83], ene.-abr. 2000. tab, ilus
Article in Spanish | LILACS, CUMED | ID: lil-295659

ABSTRACT

Se reporta que la orientación espacial durante la microcirugía, constituye un elemento indispensable. Se demuestra esta aplicación de la cirugía estereotáxica en el Centro Internacional de Restauración Neurológica (CIREN) de mayo de 1994 a febrero de 1998, al describir la realización de 65 intervenciones microquirúrgicas en condiciones estereotáxicas, a 62 pacientes con tumores cerebrales intracraneales. El proceder se dividió en 3 etapas: adquisición de la imagen, tomografía axial computadorizada, planificación quirúrgica, con sistema de planeamiento STASSIS y procederes microquirúrgicos, que incluyeron los sistemas estereotáxicos: Leksell, Micromar y Estereoflex. Del total, 27 de estos pacientes presentaron tumores gliales, 33 no gliales y sólo 2 lesiones no neoplásicas de localización y tamaño variados. Se realizaron 30 resecciones totales. La morbilidad quirúrgica fue mínima y no hubo mortalidad quirúrgica. Las principales ventajas del método son: localización exacta de la craneotomía, fácil orientación espacial, facilidad para distinguir los límites entre el tumor y el tejido sano. Se verificó la aplicabilidad del Estereoflex a la microcirugía cerebral(AU)


It is reported that spatial guidance during microsurgery is an essential element. This application of stereotaxic surgery is shown at the International Center of Neurological Restoration (CIREN, in Spanish) from May, 1994, to February, 1998, on describing the performance of 65 microsurgical procedures under stereotaxic conditions among 62 patients with cerebral intracranial tumors. The procedure was divided into 3 stages: image adquisition, CAT, surgical planning , with STASSIS planning system, and microsurgical procedures that included the Leksell, Micromar and Esteroflex stereotaxic systems. 27 of the total of patients presented glial tumors; 33, non-glial; and only 2 non-neoplastic lesions of diverse localization and size. 30 total resections were made. Surgical morbidity was minimum and there was no surgical mortality. The main advantages of this method are: exact localization of the craniotomy, easy spatial guidance, and the opportunity to distinguish the limits between the tumor and the sound tissue. The possibility to apply Esteroflex to cerebral microsurgery was demonstrated(AU)


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Adolescent , Adult , Middle Aged , Aged , Brain Neoplasms/surgery , Tomography, X-Ray Computed/methods , Stereotaxic Techniques/adverse effects , Microsurgery/methods , Image Processing, Computer-Assisted/methods
6.
Arq. neuropsiquiatr ; 57(3A): 615-20, set. 1999. tab
Article in Portuguese | LILACS | ID: lil-242266

ABSTRACT

Analisamos 75 pacientes com lesões do sistema nervoso central submetidos a biópsia estereotáxica no período de março de 1993 a dezembro de 1998 na Universidade Federal de São Paulo - Escola Paulista de Medicina. As três lesões mais frequentes foram: metástase, astrocitoma de baixo grau e glioblastoma multiforme. O índice de morbidade foi 2,66 por cento decorrente de: infecção de ferida operatória em uma paciente portadora de cisto talâmico; e de um paciente com linfoma que apresentou crise convulsiva parcial motora durante a cirurgia. A mortalidade foi 1,33 por cento decorrente de piora intensa de edema perilesional, falecendo o paciente após uma semana. O índice de diagnóstico foi 89,33 por cento.


Subject(s)
Adult , Child , Child, Preschool , Middle Aged , Humans , Male , Female , Biopsy/methods , Brain/pathology , Stereotaxic Techniques , Biopsy/adverse effects , Stereotaxic Techniques/adverse effects , Tomography, X-Ray Computed
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