A5090887609- Meningioma and schwannoma management
- Spinal Fractures and Fixation Techniques
- Cerebrospinal fluid and hydrocephalus
- Vascular Malformations Diagnosis and Treatment
- Head and Neck Surgical Oncology
- Intracranial Aneurysms: Treatment and Complications
- Traumatic Brain Injury and Neurovascular Disturbances
- Craniofacial Disorders and Treatments
- Surgical Simulation and Training
- Anatomy and Medical Technology
- Cervical and Thoracic Myelopathy
- Glioma Diagnosis and Treatment
- Spinal Dysraphism and Malformations
- Neurosurgical Procedures and Complications
- Spine and Intervertebral Disc Pathology
- History of Medical Practice
- Traumatic Brain Injury Research
- Fetal and Pediatric Neurological Disorders
- Neurology and Historical Studies
- Trigeminal Neuralgia and Treatments
- Cerebral Venous Sinus Thrombosis
- Surgical Sutures and Adhesives
- Moyamoya disease diagnosis and treatment
- Musculoskeletal pain and rehabilitation
- Cardiac, Anesthesia and Surgical Outcomes
Universidade Federal de Minas Gerais
2011-2023
Hospital das Clínicas da Universidade Federal de Minas Gerais
2004-2021
Hospital Madre Teresa
1997-2021
Oxford University Press (United Kingdom)
2020
Diamant (Germany)
2018
Mount Sinai Hospital
2015
University of Toronto
2015
Montreal Neurological Institute and Hospital
2015
McGill University
2015
Fundación Juan March
2015
OBJECTIVE Surgery for brain aneurysms is technically demanding. In recent years, the process to learn technical skills necessary these challenging procedures has been affected by a decrease in number of surgical cases available and progressive restrictions on resident training hours. To overcome limitations, simulators such as cadaver heads human placenta models have developed. However, effectiveness improving unknown. This study assessed concurrent predictive validity aneurysm surgery...
<i>Background:</i> An important aspect of evaluating patients submitted to stereotactic biopsy the brainstem is trajectory used. The literature describes two principal approaches: suboccipital transcerebellar and transfrontal; however, no studies exist comparing these techniques. <i>Objective:</i> purpose this study was compare diagnosis success rates complications between transfrontal trajectories. <i>Methods:</i> evaluated 142 biopsy. presented tumors in...
The authors describe a new procedure for percutaneous trigeminal radiofrequency rhizotomy. Computerized tomography fluoroscopy is used guidance of the rhizotomy needle insertion through foramen ovale. Ten patients were treated using this method, and in each case target was reached with single puncture. potential benefits method are presented.
Object The aim of this study was to compare MR imaging characteristics with histopathological findings intrinsic brainstem lesions and also show the prognostic factors in patients diffuse glioma. Methods Between February 1988 August 2007, 44 biopsies were performed at Roger Salengro Hospital Lille, France, children not amenable excision. Twenty-six female 18 male, mean age 6 years. Results Histological evaluation revealed glioma all nonenhancing lesions. Diffuse found (90%) enhancing...
Brainstem gliomas were regarded as a single entity prior to the advent of MRI; however, several studies investigating MRI have recognized that these lesions are heterogeneous group, and certain subgroups better prognosis for long-term survival. The aim this study was conduct retrospective analysis prognostic factors patients with brainstem confirmed by histopathological diagnosis, particularly regarding assessment whether histological grade, age, findings patient survival.The evaluated 100...
✓ Almost 50 years of research on moyamoya disease (1957–2006) has led to the development a variety surgical and medical options for its management in affected patients. Some these have been abandoned, others served as basis better procedures, many are still use today. Investigators studying during this period concluded that best treatment is planned after each patient's presenting symptoms angiographic pattern. The procedures proposed can be classified into three categories: direct arterial...
Management of brainstem mass lesions remains a controversial issue, especially when the lesion cannot be excised and infiltration occurs; moreover, benefits stereotactic procedure are still under debate. In most studies, treatment decisions based solely on MRI features do not include histopathological diagnosis. current study, we compared characteristics with findings intrinsic identified associated diagnosis pathologies other than diffuse glioma. From February 1988 through August 2007, 96...
To prospectively evaluate the results of endoscopic choroid plexus cauterization (ECPC) and ventriculoperitoneal shunts (VPSs) in infants with hydranencephaly or near hydranencephaly.We collected clinical data from all untreated hydranencephalic children October 2006 to March 2008. All patients treated were randomly divided into 2 groups, ECPC VPS, submitted either shunt placement.Seventeen entered study. was completed 9 patients; procedure successfully controlled excessive head...
BACKGROUND: Brain tumors are complex 3-dimensional lesions. Their resection involves training and the use of multiple microsurgical techniques available for removal. Simulation models, with haptic visual realism, may be useful improving bimanual technical skills neurosurgical residents neurosurgeons, potentially decreasing surgical errors thus patient outcomes. OBJECTIVE: To describe assess an ex vivo placental model brain tumor microsurgery using a simulation tool in psychomotor teaching...
The authors have reported a macro- and microscopic study of brain lesions in 120 victims fatal road traffic accidents, independent the survival time. Diffuse vascular injury (DVI) was found 14 patients (11.7%). All with DVI died within 24 h after accident. also showed severe (Grade 2 or 3) diffuse axonal (DAI). Since is restricted to accidents incompatible life, high frequency observed our series could be explained by fact that all were 69.2% had association between DAI (Grades suggests both...
Decompressive craniotomy (DC) is applied to treat post-traumatic intracranial hypertension (ICH). The purpose of this study identify prognostic factors and complications unilateral DC. Eighty-nine patients submitted DC were retrospectively analyzed over a period 30 months. Chi square independent test Fisher used factors. majority male (87%). Traffic accidents had occurred in 47% the cases. 64% suffered severe head injury, while pupillary abnormalities already present 34%. Brain swelling plus...
Craniotomies involving the midline are regular practice in neurosurgery, during which injury to superior sagittal sinus (SSS), an uncommon yet devastating event, may occur. The tends be most common landmark used identify position of SSS. In this study we examined reliability as a for SSS.We performed bilateral craniectomies on eight cadaveric heads, preserving coronal, sagittal, and lambdoid sutures. width SSS its displacement from were measured specimens 105 normal magnetic resonance images...
Dural arteriovenous fistulas (DAVFs) may have aggressive symptoms, especially if there is direct cortical venous drainage. We report our preliminary experience in transarterial embolization of DAVFs with drainage (CVR) using Onyx.Nine patients were treated: eight type IV and one III (Cognard). Treatment consisted Onyx-18. Immediate post treatment angiographies, clinical outcome late follow-up angiographies studied.Complete occlusion the fistula was achieved all only procedure injection...
Surgical performance evaluation was first described with the OSATS (Objective Structured Assessment of Technical Skills) and modified for aneurysm microsurgery simulation OSAACS Aneurysm Clipping Skills). These methods rely on subjective opinions evaluators, however, there is a lack objective proficiency in microsurgical treatment brain aneurysms. The authors present new instrument, Skill Microsurgery Brain Aneurysms (SAMBA) scale, which can be used similarly model unruptured middle cerebral...
The laminoplasty technique was devised by Hirabayashi in 1978 for patients diagnosed with multilevel cervical spondylotic myelopathy.To describe an easy modification of Hirabayashi's method and present the clinical radiological results from a five-year follow-up study.Eighty had 5 levels decompression (C3-C7), 3 6 (C2-T1) 4 (C3-C6). Foraminotomies were performed 23 cases (27%). Following Nurick`s scale, 76 (88%) improved, 9 (11%) same Nurick grade, one patient worsened advised to undergo...
OBJETIVO: Descrever a anatomia do nervo laríngeo recorrente (NLR) bilateralmente, correlacionando-a com os prováveis mecanismos de lesão na abordagem cervical anterior. MÉTODO: Foram examinados 12 cadáveres adultos provenientes Laboratório Microcirurgia da Faculdade Medicina UFMG. Os dados foram analisados em termos freqüência, média e desvio-padrão. RESULTADOS: O NLR esquerdo teve comprimento total médio 9,4 ± 1,6 cm. Penetra laringe 36,3% dos casos altura C5, 18,2% C4, C5-C6, C6 9,1%...
Relatam-se os trabalhos pioneiros de Broca sobre localizações cerebrais e topografia cranioencefálica a aplicação dos mesmos à primeira craniotomia baseada em localização cerebral.