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Search Results: 1 - 10 of 277903 matches for " José Píndaro Pereira; "
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Meningiomas of pineal region in children
Matushita, Hamilton;Pinto, Fernando Campos;Plese, José Píndaro Pereira;
Arquivos de Neuro-Psiquiatria , 2007, DOI: 10.1590/S0004-282X2007000600016
Abstract: meningiomas are uncommon tumors in children and either more rarely encountered in the pineal region. we report two cases of meningioma of the pineal region in children. one of these cases was a five years-old girl and the other a one year-old boy. no specific clinical presentation or tomographic examinations findings was identified before treatment, suggestive of a diagnosis of menigioma. the clinical and laboratory features were very similar to the most common tumors of the pineal region. prior to the surgery, the histology of these tumors was not suspected. both patients underwent direct surgery and complete removal was achieved by a suboccipital transtentorial approach. the tumors originated from velum interpositum in both cases. at the follow up, one case presented with recurrence six years later, and she underwent a reoperation with total resection without morbidity. long-term follow up presented no other recurrences.
Perspective of the frontolateral craniotomies
Figueiredo, Eberval Gadelha;Oliveira, Arthur Maynart Pereira;Plese, José Píndaro P;Teixeira, Manoel Jacobsen;
Arquivos de Neuro-Psiquiatria , 2010, DOI: 10.1590/S0004-282X2010000300020
Abstract: the pterional craniotomy is one of the most frequently surgical approaches used in neurosurgery and currently it has become a mainsteam. it allows excellent microsurgical exposure of anterior and posterior regions of the arterial circle of willis, supra and paraselar regions, the superior orbital fissure of sphenoid bone, cavernous sinus, orbit, temporal lobe, midbrain and the frontal lobe. like others techniques, the pterional craniotomy presented disadvantages related to dissection of the temporal muscle. from the first fronto lateral craniotomy described by dandy to expose the optic chiasm and the pituitary we pass through the yasargil's classical description of craniotomy centered in fronto-temporal sylvian fissure until reaching the recent"minipterional craniotomy", modifications of the pterional craniotomy were proposed to reduce the extra cranial tissue trauma and reduce the area of craniotomy without affecting the exposure of surgical targets, thus improving their aesthetic and functional results. an historical analysis of the frontolateral approaches has demonstrated that they have evolved from larger craniotomies to smaller ones, however only the minipterional craniotomy is able to offer similar surgical exposure.
Neurinoma do acústico em crian?as sem associa??o com neurofibromatose: relato de dois casos
Arquivos de Neuro-Psiquiatria , 1999, DOI: 10.1590/S0004-282X1999000100019
Abstract: acoustic schwannoma is the most common tumor of the cerebellopontine angle in adults and is rarely found in children without neurofibromatosis. in the literature there are 18 children under the age of 16 with such tumor. two female patients with age of 9 and 15 years old with acoustic schwannoma without neurofibromatosis are related. progressive deafness followed by signs and symptoms of a posterior fossa tumor were the initial complaint of both, as well as of the other related cases and in adulthood.
Correlation between parameters of electrophysiological, histomorphometric and sciatic functional index evaluations after rat sciatic nerve repair
Martins, Roberto Sergio;Siqueira, Mario Gilberto;Silva, Ciro Ferreira da;Plese, José Píndaro Pereira;
Arquivos de Neuro-Psiquiatria , 2006, DOI: 10.1590/S0004-282X2006000500010
Abstract: the rat sciatic nerve is a well-established model for the study of recovery from peripheral nerve injuries. traditional methods of assessing nerve regeneration after nerve injury and repair, such as electrophysiology and histomorphometry, despite widely used in neural regeneration experiments, do not necessarily correlate with return of motor and sensory functions. the aim of this experimental study is to investigate the possible correlation between several parameters of peripheral nerve regeneration after repair of sectioned sciatic nerve in wistar rat. a two-stage approach was used to obtain 17 parameters after electrophysiological, morphometric and sciatic functional index evaluations. pearson's correlation analysis was performed between these results. only two positives correlations between different classes of peripheral nerve assessments were noted, between sciatic functional index and proximal nerve fiber diameter (r=0.56, p<0.01) and between sciatic functional index and distal fiber diameter (r=0.50, p<0.01). the data presented in our study demonstrates that there is a poor correlation between the sciatic functional index and outcome measures of electrophysiological and morphometric evaluations.
Infec??es de deriva??es liquóricas em crian?as: revis?o de 100 infec??es em 87 crian?as
Martins, Roberto;Ciquini Jr., Orildo;Matushita, Hamilton;Cabral, Nilton Domingos;Plese, José Píndaro Pereira;
Arquivos de Neuro-Psiquiatria , 1997, DOI: 10.1590/S0004-282X1997000100012
Abstract: an analysis of 100 infections in 87 children treated with shunts in the period of 1982 to 1995 is reported. the clinical presentation has been more frequently secondary to inflamatory signals. staphylococcus were the most frequently microrganisms found. infection by gram negative agents was more aggressive and directly related with failure of therapy. treatment included since only systemic antibiotics until withdrawal of shunt with use of systemic and intrathecal antibiotics. the best therapeutic results were obtained with withdrawal of shunt system and replacement by external shunt system associated to systemic antibiotics. in our experience this management must be accepted for treatment of this severe complication.
Astrocitomas do cerebelo na infancia: experiência em 25 casos
Cabral, Nilton Domingos;Ciquini Jr., Orildo;Matushita, Hamilton;Neves, Valdir Delmiro;Plese, José Píndaro Pereira;
Arquivos de Neuro-Psiquiatria , 1997, DOI: 10.1590/S0004-282X1997000100013
Abstract: the experience with the surgical treatment of cerebellar astrocytomas in 25 children is reported. the clinical presentation, incidence, ct-scan diagnostic studies, pathology, recurrence and treatment aspects are discussed. the series included children until 10 years old with peak (7 cases) in the 7th year of age. the more frequent opening symptoms were: headache, vomit and gait disturbances. no surgical mortality occurred in the series. the autors conclude that surgical radical resection is the best therapeutics for this type of tumor and that radiotherapy is indicated only for tumors with malignant histology.
Ressonancia nuclear magnética nos disrafismos espinais
Souza, Márcia Regina de;Plese, José Píndaro Pereira;Matushita, Hamilton;Ciquini, Orildo;
Arquivos de Neuro-Psiquiatria , 1994, DOI: 10.1590/S0004-282X1994000200016
Abstract: we studied by magnetic resonance imaging the incidence of associated malformations in a group of 38 patients with diagnosis of spina bifida followed in our outpatient clinic. twenty-two children were born with spina aperta and 16 with spina bifida occulta. tethered cord was found in the majority of patients of both groups. syringomyelia was found in 13 patients. the craniocervical region was studied in 11 patients with diagnosis of spina bifida aperta; chiari malformation was found in 8. the results point to the fact that asymptomatic malformations detected by mri techniques are frequent in patients with spina bifida.
Neurinoma do acústico em crian as sem associa o com neurofibromatose: relato de dois casos
Arquivos de Neuro-Psiquiatria , 1999,
Abstract: O neurinoma do acústico é o tumor da regi o angulo ponto-cerebelar mais comum em indivíduos adultos, sendo raro em crian as sem neurofibromatose. A literatura consultada mostra 18 casos bem documentados de crian as portadoras de neurinomas do VII nervo craniano com idade inferior a 16 anos. Relatamos dois casos de crian as com idade de 9 e 15 anos, portadoras desta patologia e submetidas a tratamento cirúrgico. Nestes casos, assim como nos relatados na literatura, o quadro clínico é semelhante ao do adulto, em que o primeiro sintoma é a surdez progressiva, mais tardiamente seguindo-se sinais e sintomas relacionados à les o expansiva na fossa posterior.
Intracranial arterial aneurysms in childhood: case report
Pinto, Fernando Campos Gomes;Valiengo, Leandro;Santos, Pedro Paulo Mariani Lima;Matushita, Hamilton;Plese, José Píndaro Pereira;
Arquivos de Neuro-Psiquiatria , 2006, DOI: 10.1590/S0004-282X2006000400031
Abstract: a case of an intracranial arterial aneurysm at internal carotid bifurcation in a 10-year-old girl is described with the special features of cerebral aneurysm which occur in children, comparing with the adults. we alert for the necessity of carefully operative technique in order to avoid damage and intraoperative rupture of the aneurysm due to the very thin vessel wall that this population can develop. our recommendation is early surgery in these patients.
Electrophysiologic assessment of regeneration in rat sciatic nerve repair using suture, fibrin glue or a combination of both techniques
Martins, Roberto Sergio;Siqueira, Mario Gilberto;Silva, Ciro Ferreira da;Godoy, Benedito Ortiz de;Plese, José Píndaro Pereira;
Arquivos de Neuro-Psiquiatria , 2005, DOI: 10.1590/S0004-282X2005000400009
Abstract: we evaluated the repair of seccioned rat sciatic nerve by the comparison of electrophysiologic parameters. the repair was effected with suture (group a), fibrin glue (group b) or a combination of both techniques (group c). the amplitude, latency and conduction velocity of the motor and nerve action potentials were assessed before the nerve section and at reoperation after 24 weeks. there was no difference between the groups when the nerve action potential was evaluated. rats of group b presented better results than those of group a (p<0.05) when latency and the nerve conduction velocity assessed at the reoperation, and the ratio between the conduction velocity at the reoperation and before the nerve section in the motor action potential evaluation were measured. animals of group c presented better results than those of group a when the ratio between the conduction velocity of motor action potential at the reoperation and before the nerve division was considered (p<0.05). no difference between groups b and c was found. we conclude that repair using fibrin glue presented better results than suture following transection of sciatic nerve when the motor action potential was evaluated in the rat experimental model.
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