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1.
Eur Spine J ; 26(2): 428-433, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-27272492

RESUMO

PURPOSE: To evaluate the impact of pelvic balance, physical activity, and fear-avoidance in a cohort of patients undergoing decompression and instrumented fusion for degenerative lumbar stenosis. MATERIALS AND METHODS: This study includes consecutive patients undergoing decompression and instrumented fusion for degenerative lumbar stenosis by one main surgeon from January 2014 to January 2015. Patients were interviewed by a psychologist and underwent standing whole spine X-ray. Lumbar and pelvic parameters (PI, SS, PT, iPT, LL) were measured by an independent spinal surgeon. Physical activity was measured with the International Physical Activity Questionnaire (IPAQ). The "fear-avoidance" was measured with the Tampa Scale for Kinesiophobia (TSK). Back pain was assessed by the Graphic Rating Scale (GRS). The disability was assessed by the Roland-Morris Low Back Pain and Disability Questionnaire. Statistical interpretation of the data was performed using SPSS v19 software (SPSS Inc, Chicago, Illinois). RESULTS: The sample included 51 patients underwent standard posterior laminectomy and instrumented fusion. Surgery has a positive global impact on the perceived low back pain. No significant (Spearman) correlations emerged among pelvic parameters and the pre- and post-surgical GSR. Patients were divided into three groups according to the IPAQ scores after the operation: "inactive" (I), "minimally inactive" (m-I), and "HEPA". Significant differences emerged between IPAQ and Roland-Morris scores (F(2, 48) = 5.48, p = 0.007): the "inactive" (M(R-M) = 11.3) or "minimally active" (M(R-M) = 9.8) groups scored significantly higher than the "HEPA" group (M(R-M) = 4.7). Tampa scores correlated with gender (rho = -0.408, p = 0.003) and with BMI (rho = -0.369, p = 0.008). Females and obese patients reported higher levels of Tampa scores. Significant relationship was found between Tampa scores and pre-GSR (rho(pre) = 0.250, p = 0.08) and significant with post-surgical GSR (rho(post) = 0.275, p = 0.05) and with post-Roland-Morris score (rho(post) = 0.599, p < 0.01). CONCLUSION: The fear-avoidance and the physical inactivity are related to the highest levels of low back pain, more than pelvic imbalance. "Inactive" and "fear-avoidant" patients have also the worst outcome after surgery and the worst level of disability.


Assuntos
Descompressão Cirúrgica , Vértebras Lombares/cirurgia , Fusão Vertebral , Estenose Espinal/cirurgia , Idoso , Estudos de Coortes , Avaliação da Deficiência , Exercício Físico , Medo , Feminino , Humanos , Laminectomia , Vértebras Lombares/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Movimento , Obesidade/complicações , Medição da Dor , Pelve/diagnóstico por imagem , Pelve/fisiologia , Equilíbrio Postural/fisiologia , Fatores Sexuais
2.
Eur Spine J ; 24 Suppl 7: 872-8, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26487473

RESUMO

PURPOSE: The stage of unstable dysfunction, also defined as "active discopathy" by Nguyen in 2015 and configuring the first phase of the degenerative cascade described by Kirkaldy-Willis, has specific pathoanatomical and clinical characteristics (low back pain) in the interested vertebral segment, without the presence of spondylolisthesis in flexion-extension radiography. This clinical condition has been defined as "microinstability" (MI). The term has currently not been recognized by the scientific community and is subject of debate for its diagnostic challenge. MI indicates a clinical condition in which the patient has a degeneration of the lumbar spine, causing low back pain, and radiological examinations do not show a spondylolisthesis. METHODS: We elaborated a clinical score test based on preoperative radiological examinations (static and dynamic X-Rays, CT and MRI) to detect and assess MI. Then, we enrolled 74 patients, all the levels from L1 to S1 were analysed, for a total amount of 370 retrospectively analysed levels. We excluded patients with degenerative scoliosis, as it is related to an advanced stage of degeneration. The test has been developed with the aim of furnishing quantitative data on the basis of the aforementioned radiological examinations and of elaborating a diagnosis and a treatment for the degenerative pathology in dysfunctional phase, responsible for low back pain. RESULTS: We performed a statistical analysis on the results obtained from the test in terms of significativity and predictive value with a 1-year follow-up, calculating the p value and the χ (2) value. CONCLUSIONS: In patients with low back pain and negative dynamic X-Rays, an accurate analysis of the radiological exams (CT, MRI, X-Rays) allows to formulate a diagnosis of suspect MI with a good predictive value. This situation opens many clinical and medicolegal scenarios. The preliminary results seem to validate the test with a good predictive value, especially towards ASD, but they need further studies. On the basis of the results obtained, the test seems to allow a good classification of the dysfunctional phase of the degenerative cascade, identifying and classifying MI as a pathologic entity, defining its pathoanatomical and clinical relevance and elaborating a treatment algorithm.


Assuntos
Técnicas de Apoio para a Decisão , Degeneração do Disco Intervertebral/diagnóstico , Dor Lombar/etiologia , Vértebras Lombares , Seguimentos , Humanos , Degeneração do Disco Intervertebral/classificação , Degeneração do Disco Intervertebral/complicações , Degeneração do Disco Intervertebral/cirurgia , Dor Lombar/cirurgia , Vértebras Lombares/diagnóstico por imagem , Vértebras Lombares/cirurgia , Imageamento por Ressonância Magnética , Valor Preditivo dos Testes , Estudos Retrospectivos , Tomografia Computadorizada por Raios X
3.
Eur Spine J ; 23 Suppl 6: 671-6, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25212446

RESUMO

PURPOSE: The aim of the study is to use an algorithm previously published to decide whether to perform open surgery or percutaneous surgery with short fixation in patients with thoraco-lumbar junction and lumbar spine fractures, and to compare retrospectively surgical and conservative options of treatment. METHODS: Between 2005 and 2009, two groups of 25 patients were analyzed to compare retrospectively surgical and conservative option of treatment to assess perception of pain and to evaluate quality of life during treatment, to evaluate how quickly patients return to work and to their daily activities, to evaluate patients' satisfaction. X-ray controls were performed to evaluate the fusion rate at 3 and 6 months and CT scans at 6 months. RESULTS: The surgical group had a better functional recovery, a better quality of life and returned to work earlier in comparison to the conservative group. CONCLUSIONS: We can conclude that the percutaneous procedure seems to give better results in terms of satisfaction and return to normal activities, although both procedures guarantee excellent fusion rates.


Assuntos
Vértebras Lombares/cirurgia , Vértebras Torácicas/cirurgia , Algoritmos , Humanos , Vértebras Lombares/diagnóstico por imagem , Vértebras Lombares/lesões , Qualidade de Vida , Radiografia , Estudos Retrospectivos , Fraturas da Coluna Vertebral/diagnóstico por imagem , Fraturas da Coluna Vertebral/cirurgia , Fusão Vertebral , Vértebras Torácicas/diagnóstico por imagem , Vértebras Torácicas/lesões , Resultado do Tratamento
4.
Neurosurg Rev ; 35(2): 245-53; discussion 253, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22009492

RESUMO

Spinal synovial cysts are cystic dilatations of the synovial membrane that may arise at all levels of the spine. We describe our experience, paying attention to diagnosis, surgical treatment, and long-term follow-up. Between 1995 and 2007, 18 patients were surgically treated. Of these, three patients were excluded from the study because they presented spinal instability at pre-operative assessment. All patients were evaluated pre-operatively with CT, MRI, and dynamic X-rays, and underwent surgery for removal of the cyst by hemilaminectomy and partial arthrectomy. All patients were evaluated with early MRI and had a minimum 2-year follow-up by dynamic X-rays. None of the patients required instrumented fusion due to the absence of radiological signs of instability on the pre-operative dynamic tests. In all patients, there was an immediate resolution of the symptoms, with evidence of complete removal of the cysts on post-operative MRI. At 2-year follow-up, all patients underwent dynamic X-rays and responded to a questionnaire for evaluation of outcome. None of them showed signs of relapse. The gold standard for treatment is surgery, even though other conservative treatment regimens have been proposed. Correct surgical strategy relies on pre-operative assessment of biomechanical stability for deciding whether patients need instrumented fusion during cyst removal. Patients with no instability signs are suitable for hemilaminectomy with partial arthrectomy, preserving 2/3 of the medial portion of the articular facet, because this represents a valid option of treatment with a low risk of complications and a low rate of relapse.


Assuntos
Vértebras Lombares/cirurgia , Doenças da Coluna Vertebral/cirurgia , Cisto Sinovial/complicações , Cisto Sinovial/cirurgia , Idoso , Feminino , Seguimentos , Humanos , Laminectomia , Masculino , Microcirurgia/métodos , Pessoa de Meia-Idade , Doenças da Coluna Vertebral/diagnóstico , Cisto Sinovial/diagnóstico , Resultado do Tratamento
5.
J Neurosurg Sci ; 55(3): 283-8, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21968591

RESUMO

This paper describes the surgical management of a post-traumatic calcified thoracic disc herniation treated using ultrasonic bone curette SONO-PET®. The case described concerns a young man with a symptomatic calcified thoracic disc herniation, who underwent posterolateral approach and transversoarthropediculectomy. Patient underwent posterolateral approach with excellent postoperative results. Neurophysiological monitoring somato-sensory evoked potential (SSEP) and muscle motor evoked potentials (MMEP), inclination of 30° toward the unaffected side of the operating table, the use of Ultrasonic Bone-Curette SONO-PET® and proper reconstruction of the three floors of the back muscles allows the removal of the disc herniation safer and risk's free, and less invasive for the patient.


Assuntos
Calcinose/cirurgia , Discotomia Percutânea/métodos , Deslocamento do Disco Intervertebral/cirurgia , Terapia por Ultrassom/métodos , Adulto , Calcinose/diagnóstico por imagem , Discotomia Percutânea/instrumentação , Humanos , Deslocamento do Disco Intervertebral/diagnóstico por imagem , Masculino , Monitorização Intraoperatória/métodos , Radiografia , Vértebras Torácicas , Terapia por Ultrassom/instrumentação
6.
J Neurosurg Sci ; 55(1): 1-6, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21464805

RESUMO

AIM: Among physicians there is still a reluctant attitude in the employment of combined treatment with surgery and intraoperative placement of carmustina 7.7 mg wafers (Gliadel®), followed by standard adjuvant treatment with radiotherapy and concomitant and subsequent chemiotherapy with temozolomide (TMZ), for supratentorial high grade gliomas at first diagnosis. To determine the safety and feasibility of this multimodality sequential adjuvant therapy, we reviewed our single-institution experience, in the light to provide more insights on this continuous multi-stage chemotherapy approach to such a challenging disease as glioblastoma multiforme. METHODS: From February 2006 to January 2008, 32 patients were treated at our institution for cerebral supratentorial high grade glioma with surgery and intraoperative placement of carmustine wafers. No postsurgical complications could be observed. After a median time of 4,8 weeks all patients began adjuvant concomitant radiotherapy with a mean of 60 Gy and TMZ chemotherapy 75 mg/m2 during which weekly hematologic assessments were performed. After 3 to 6 weeks patients commenced adjuvant TMZ, administered 5 days every 28, 200 mg/m2 for not less than 12 cycles. A contrast-enhanced magnetic resonance imaging (MRI) was routinely performed. Median follow-up after surgery was of 6.5 months, ranging from 4 to 23 months. RESULTS: The mean presurgical KPS was of 80 (range: from 60 to 100), and it remained unmodified after adjuvant therapies even at suspension of steroids. In 4 cases there was a radiologic evidence of progression of the disease and the necessity of steroids, with a progression-free survival (PFS) of 6, 8, 9,5 and 13,6 months. One case died 14 months after first operation. All other patients are still alive. CONCLUSION: The integration of local chemiotherapy with carmustine wafers and the standard adjuvant regimen with radiotherapy and concomitant chemiotherapy appears to be safe and feasible, without any adjunctive complication. Promising results on the efficacy require more follow up to be quantified.


Assuntos
Antineoplásicos Alquilantes/administração & dosagem , Materiais Biocompatíveis/administração & dosagem , Carmustina/administração & dosagem , Ácidos Decanoicos/administração & dosagem , Glioma/tratamento farmacológico , Poliésteres/administração & dosagem , Neoplasias Supratentoriais/tratamento farmacológico , Adulto , Idoso , Antineoplásicos Alquilantes/efeitos adversos , Carmustina/efeitos adversos , Terapia Combinada , Sistemas de Liberação de Medicamentos/métodos , Estudos de Viabilidade , Feminino , Seguimentos , Glioma/patologia , Glioma/cirurgia , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Neoplasias Supratentoriais/patologia , Neoplasias Supratentoriais/cirurgia , Taxa de Sobrevida
7.
Eur Spine J ; 20 Suppl 1: S8-12, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21404034

RESUMO

From January 1, 2001 to December 31, 2003, in the Neurosurgery Department of Rome University o "Sapienza," 167 patients underwent anterior surgery for cervical spondylodiscoarthrosis. The levels treated by the anterior stand-alone technique were: C3-C4 (11%), C4-C5 (19%), C5-C6 (40%), and C6-C7 (30%). All patients underwent left anterior presternocleidomastoid-precarotid approach, microdiscectomy, and interbody fusion using a carbon fiber cage filled with hydroxyapatite. All patients were discharged within 48 h after surgery with cervical orthosis. In one case, a hematoma of the surgical site occurred within 12 h of surgery; for this reason the patient underwent surgical revision and was discharged 4 days later. All patients have worn cervical orthosis for a mean period of 7 weeks and underwent radiological follow-up with cervical RX at 1 and 3 months after surgery. All patients underwent follow-up from 54 to 90 months after surgery, and all of them underwent cervical RX, cervical CT scans for the estimate of fusion, and evaluation of neurological status using VAS and NDI. Of 167 patients, 132 were cooperative for this study, 18 were non-cooperative, and 17 died. The estimation of fusion made by cervical CT scans with sagittal reconstruction showed complete osteointegration of the cage in 115 patients (87.1%), while it showed pseudoarthrosis in 17 patients (12.9%). In 24 patients, we observed adjacent segment degeneration, and 13 of these underwent new surgical procedures in this institute or in another hospital. Clinical evaluation with VAS and NDI showed a good outcome, with poorest benefit in patients over 60 years. The clinical analysis showed a good fusion rate in according with literature, 13% of non-fusion rate without clinical evidence and 20% of ASDegeneration but only 10% had required new surgery. We also observed that patients over 60 years of age had less satisfactory outcome, probably related with the evolution of pathophysiological degeneration of the cervical spine. In the opinion, pseudoarthrosis is caused by malpositioning of the carbon fiber cage.


Assuntos
Vértebras Cervicais/cirurgia , Disco Intervertebral/cirurgia , Fusão Vertebral/instrumentação , Espondilose/cirurgia , Vértebras Cervicais/diagnóstico por imagem , Discotomia/métodos , Feminino , Seguimentos , Humanos , Disco Intervertebral/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Próteses e Implantes , Radiografia , Espondilose/diagnóstico por imagem , Resultado do Tratamento
8.
Eur Spine J ; 20 Suppl 1: S61-7, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21416280

RESUMO

Over the last few years, some hemocomponents have been used advantageously in clinical neurosurgical practice, not systemically via transfusion but topically as a sealant (fibrin glue). This has diverted the attention of many authors to the role of platelets in the healing process. The combination of hyper-concentrated platelets and fibrin glue (fibrinogen, XIII factor, fibronectin) with activated thrombin produces a platelet gel that can be easily applied to "difficult" wounds. This topical use of hemocomponents has gained an important role in regenerative medicine. The authors have considered the possibility of using a preparation with a high autologous platelet concentration applied in addition to autologous bone during vertebral postero-lateral fusion. The aim of the procedure is to induce a higher rate of vertebral fusion. Between November 2007 and November 2008, 14 patients (9 men and 5 women, mean age 58.9) underwent laminectomy, vertebral stabilization and postero-lateral fusion. The number of vertebral levels involved in stabilization was: 1 in 2 patients, 2 in 5 patients, 3 in 5 patients, 4 in 1 patient and 5 in 1 patient. Platelet gel was obtained by taking 16 ml of peripheral venous blood from the patient. For this procedure two patented test tubes were used for each patient, with a capacity of 8 m each. These make up the REGEN-THT(®) (Thrombocyte Harvesting Tube) system that makes it possible to obtain 8 ml of autologous platelet gel in 40-45 min. The addition of Ca gluconate and ethanol at 95% makes it possible to obtain a preparation of plasma rich in platelets and activated thrombin with a platelet concentration five times superior to the haematic one. The platelet gel is combined with fragments of autologous bone and synthetic bone during surgical operation. To allow a comparative assessment of the degree of fusion achieved with and without application of the platelet preparation in each patient, it was arbitrarily decided to use it in only one half of the operative field. All patients underwent serial CT scans 3 and 6 months after surgery as well as plain X-rays to evaluate bone fusion. The reconstructed CT images, especially in sagittal and axial planes, permitted an evaluation of the degree of vertebral fusion and "bone growth". The fusion rate was calculated measuring the increment of bone density on CT images, by means of an evaluation of the ROI (HU) in the newly formed bone, and comparing bone density within the bone callus formed by autologous and synthetic bone alone in the one to which the platelet preparation had been added. A good rate of fusion was observed in all patients. Furthermore, a comparative analysis of ROI at 3 and 6 months after surgery demonstrated a high increase in the fusion rate during the first 3 months after surgery. After 6 months the differences in ROI between the two sides had balanced out. However, at 6-month follow-up examination, bone density in the half of the surgical field in which platelet gel had been added to autologous-heterologous bone was higher in comparison to the contralateral one. Bony neoformation after posterior-lateral arthrodesis is well-evident 3 months after surgery and usually continues gradually for the following 18-24 months. The autologous platelet preparation used seems to accelerate bony deposition and to promote tissue healing, increasing bone density at the level of posterior-lateral arthrodesis. Moreover, this preparation has low production costs and is easy to apply.


Assuntos
Vértebras Lombares/cirurgia , Transfusão de Plaquetas , Fusão Vertebral/instrumentação , Estenose Espinal/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Plaquetas , Transfusão de Sangue Autóloga , Feminino , Géis/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
9.
Anaesthesia ; 64(5): 503-7, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-19413819

RESUMO

The aim of this prospective study was to determine the prevalence of pre-operative atrial fibrillation and the incidence of postoperative atrial fibrillation in patients undergoing elective or emergency intracranial neurosurgical procedures and the relation to survival and neurological outcome at 6-months follow-up compared to patients with sinus rhythm. A total of 2020 patients were enrolled; 1540 patients underwent elective procedures and 480 underwent emergency procedures. Prevalence of pre-operative atrial fibrillation was 3.7% in elective and 7.2% in emergency procedures (p = 0.0012). In patients undergoing elective cerebral procedures with pre-operative atrial fibrillation, compared to patients with sinus rhythm, 6-month neurological outcome and survival rate are similar. In patients undergoing emergency neurosurgical cerebral procedures, the presence of pre-operative atrial fibrillation is related to an increased risk of poor neurological outcome but with similar survival rate.


Assuntos
Fibrilação Atrial/complicações , Procedimentos Neurocirúrgicos/efeitos adversos , Adulto , Idoso , Fibrilação Atrial/epidemiologia , Avaliação da Deficiência , Procedimentos Cirúrgicos Eletivos/efeitos adversos , Emergências , Métodos Epidemiológicos , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Procedimentos Neurocirúrgicos/reabilitação , Prognóstico , Resultado do Tratamento , Adulto Jovem
10.
J Neurosurg Sci ; 52(3): 83-5, 2008 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-18636053
11.
J Neurosurg Sci ; 51(2): 61-4, 2007 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-17571036

RESUMO

AIM: The anterior cervical presternocleidomastoid approach is a safe and standardized procedure. Nevertheless, in all the largest series presented in literature, a certain risk of injury to the recurrent laryngeal nerves (RLNs) is reported and the choice of the side of the approach seems to influence such risk. Our aim was to study the surgical anatomy of the RLNs and to understand whether the side of the approach can be a risk factor for their surgical damage. METHODS: We performed an anatomical dissection of 6 fresh cadavers, studying the origin and the course of both the RLNs, to assess their vulnerability in the anterior presternocleidomastoid approach to the cervical spine. RESULTS: The origin of the right RLN was at C7 in 2 cases and at T1 in 4 cases. In all cases it arose where vagus nerve crossed the subclavian artery and it was directed superiorly and transversely to the esophagotracheal groove. CONCLUSIONS: The right and left RLNs have different origin and course. Although the discussion about the best side for the anterior cervical approach is debated, in our opinion, both anatomical and surgical considerations, concerning RLNs, lead to the evidences that the left side approach, when possible, should be preferred below the level of C4.


Assuntos
Vértebras Cervicais/cirurgia , Procedimentos Neurocirúrgicos/métodos , Complicações Pós-Operatórias/prevenção & controle , Nervo Laríngeo Recorrente/anatomia & histologia , Doenças da Coluna Vertebral/cirurgia , Paralisia das Pregas Vocais/prevenção & controle , Aorta Torácica/anatomia & histologia , Aorta Torácica/cirurgia , Cadáver , Dissecação/métodos , Esôfago/cirurgia , Lateralidade Funcional/fisiologia , Humanos , Doença Iatrogênica/prevenção & controle , Procedimentos Neurocirúrgicos/efeitos adversos , Procedimentos Neurocirúrgicos/normas , Complicações Pós-Operatórias/etiologia , Nervo Laríngeo Recorrente/cirurgia , Traumatismos do Nervo Laríngeo Recorrente , Artéria Subclávia/anatomia & histologia , Artéria Subclávia/cirurgia , Traqueia/anatomia & histologia , Traqueia/cirurgia , Paralisia das Pregas Vocais/etiologia
12.
Clin Ter ; 158(3): 227-30, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17612282

RESUMO

AIM: To evaluate efficacy of short-course radiotherapy in elderly and/or poor performance status patients with high grade glioma. MATERIALS AND METHODS: Twenty-one patients with high grade astrocytoma were selected in our Institute to receive hypofractionated radiotherapy. We considered two radiotherapy treatment arms: in arm I there were 22 patients treated with 60 Gy in 30 fractions at 5 fractions per week; in arm 2 there were 21 patients who received hypofractionated radiotherapy course of 30 Gy in 10 fractions at 5 fractions per week. RESULTS: In arm1 the median survival time was 8.2 months and the 1 year overall survival was 36%; in arm 2 the estimated median survival was 6.2 months and the 1 year overall survival was 23%. Treatment was without acute toxicity. CONCLUSIONS: In our experience, hypofractionated radiotherapy seems to be a reasonable treatment option for poor prognosis patients with high grade astrocytoma. It is well tolerated and can reduce the overall treatment time without negative effects on survival compared with conventional fractionation.


Assuntos
Astrocitoma/mortalidade , Astrocitoma/radioterapia , Neoplasias Encefálicas/mortalidade , Neoplasias Encefálicas/radioterapia , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida
13.
J Neurosurg Sci ; 50(1): 17-20; discussion 20, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16557196

RESUMO

We present a case of isolated cerebral neurosarcoidosis with remitting nodular lesions resembling intraventricular neoplasms. The patient, admitted at our Department for surgical treatment of a magnetic resonance imaging (MRI) demonstrated fourth ventricle lesion, presented acute intracranial hypertension. A second MRI performed before the scheduled operation showed the disappearance of the fourth ventricle lesion and a tetra-ventricular hydrocephalus. The patient has been treated with a third-ventriculostomy, followed, after 15 days, by ventriculoperitoneal shunt. High doses of steroids have been administered. Cerebrospinal fluid analysis has been conducted and a high concentration of ACE, specific marker of neurosarcoidosis, has been found. No biopsy was performed to avoid surgical complications. A systemic chemotherapy with azathioprine has been started, but the patient died six months later for worsening of the clinical conditions. The autopsy confirmed the diagnosis of neurosarcoidosis. This is the first MRI documented case of neurosarcoidosis with remitting lesions. Diagnosis of isolated neurosarcoidosis is difficult and it is based on clinical and radiological exclusion of other entities. CSF examination is useful for diagnosis, for the reported specificity and sensibility of ACE. Medical treatment is based on corticosteroids and chemotherapic agents. Neurosurgical intervention can be related to treat hydrocephalus due to ependymal and arachnoidal involvement or to remove large lesions. In our opinion biopsy should be limited only to ACE negative patients and to those who do not respond to chemotherapy.


Assuntos
Encefalopatias/diagnóstico , Encefalopatias/patologia , Neoplasias do Ventrículo Cerebral/patologia , Sarcoidose/diagnóstico , Sarcoidose/patologia , Encefalopatias/cirurgia , Neoplasias do Ventrículo Cerebral/diagnóstico , Neoplasias do Ventrículo Cerebral/cirurgia , Diagnóstico Diferencial , Evolução Fatal , Quarto Ventrículo/patologia , Humanos , Hidrocefalia/diagnóstico , Hidrocefalia/patologia , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Peptidil Dipeptidase A/líquido cefalorraquidiano , Sarcoidose/cirurgia , Terceiro Ventrículo/patologia
14.
J Neurointerv Surg ; 8(10): 1078-82, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26541791

RESUMO

The treatment protocols for glioblastoma multiforme (GBM) involve a combination of surgery, radiotherapy and adjuvant chemotherapy. Despite this multimodal approach, the prognosis of patients with GBM remains poor and there is an urgent need to develop novel strategies to improve quality of life and survival in this population. In an effort to improve outcomes, intra-arterial drug delivery has been used in many recent clinical trials; however, their results have been conflicting. The blood-brain barrier (BBB) is the major obstacle preventing adequate concentrations of chemotherapy agents being reached in tumor tissue, regardless of the method of delivering the drugs. Therapeutic failures have often been attributed to an inability of drugs to cross the BBB. However, during the last decade, a better understanding of BBB physiology along with the development of new technologies has led to innovative methods to circumvent this barrier. This paper focuses on strategies and techniques used to bypass the BBB already tested in clinical trials in humans and also those in their preclinical stage. We also discuss future therapeutic scenarios, including endovascular treatment combined with BBB disruption techniques, for patients with GBM.


Assuntos
Antineoplásicos/uso terapêutico , Barreira Hematoencefálica/fisiopatologia , Neoplasias Encefálicas/fisiopatologia , Neoplasias Encefálicas/cirurgia , Procedimentos Endovasculares/métodos , Glioblastoma/fisiopatologia , Glioblastoma/cirurgia , Antineoplásicos/administração & dosagem , Neoplasias Encefálicas/tratamento farmacológico , Sistemas de Liberação de Medicamentos , Glioblastoma/tratamento farmacológico , Humanos
15.
Acta Neurochir (Wien) ; 147(7): 741-50; discussion 750, 2005 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-15711890

RESUMO

STUDY DESIGN: Spinal subarachnoid hematomas are unusual and difficult to diagnose and the outcome of treatment is influenced by the lesions that frequently accompany them. OBJECTIVES: To clarify the neuroradiological diagnostic aspects of spinal subarachnoid hematoma as well as the results of treatment. BACKGROUND: Only recently has subarachnoid hematoma been clearly distinguished from more common subarachnoid hemorrhage and its characteristics have still not been dealt with in detail. METHODS: A total of 69 cases (3 personal case, 66 published cases) were revised in terms of etiology, diagnostic imaging and the results of both surgical and conservative treatment. RESULTS: The most common causes of spinal subarachnoid hematoma are coagulopathies (either pharmacologically-induced or resulting from systemic diseases) (40.5%), lumbar puncture for diagnostic or anesthesiological purposes (44.9%) and traumatic injuries (15.9%): these factors may be present singly or variously combined. They may be spontaneous (17.3%) or, in rare cases, associated with aortic coarctation or degenerative vascular diseases. Overall mortality is 25.7%. In the 50 cases in whom long-term follow-up was possible, the outcome of treatment, which is almost exclusively always surgical, was good in 93.5% of 31 patients in whom neurological status on admission was satisfactory and in 15.8% of 19 cases with severe neurological deficits. CONCLUSIONS: MRI and CT are not usually diagnostic because they are not able to differentiate between a subarachnoid lesion and a subdural one. However, diagnosis may be possible when these investigations detect the CSF or the contrast medium surrounding the hematoma. Although the risks of producing spinal subarachnoid hematoma as a result of LP are remote, this is, in fact, the primary cause in patients with coagulopathies. The results of treatment depend on the patient's initial neurological condition, the severity of any concomitant pathologies, the position of the hematoma and the eventual association of a subdural hematoma.


Assuntos
Hemorragia Subaracnóidea/cirurgia , Idoso , Anticoagulantes/efeitos adversos , Feminino , Seguimentos , Hematoma Subdural/diagnóstico , Hematoma Subdural/etiologia , Hematoma Subdural/mortalidade , Hematoma Subdural/cirurgia , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Exame Neurológico , Remissão Espontânea , Estudos Retrospectivos , Sensibilidade e Especificidade , Compressão da Medula Espinal/diagnóstico , Compressão da Medula Espinal/mortalidade , Compressão da Medula Espinal/cirurgia , Punção Espinal/efeitos adversos , Hemorragia Subaracnóidea/diagnóstico , Hemorragia Subaracnóidea/etiologia , Hemorragia Subaracnóidea/mortalidade , Hemorragia Subaracnoídea Traumática/diagnóstico , Hemorragia Subaracnoídea Traumática/etiologia , Hemorragia Subaracnoídea Traumática/mortalidade , Hemorragia Subaracnoídea Traumática/cirurgia , Taxa de Sobrevida , Tomografia Computadorizada por Raios X
16.
Neurosurgery ; 15(1): 73-5, 1984 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-6472596

RESUMO

The authors present a case of injury to the 4th lumbar root secondary to a gunshot wound. The lesion was not directly related to the traumatic action of the projectile, but was caused by the compressive action of disc material forced into the vertebral canal as a result of the destructive effects of a 7.65 caliber bullet.


Assuntos
Deslocamento do Disco Intervertebral/etiologia , Vértebras Lombares/lesões , Síndromes de Compressão Nervosa/etiologia , Raízes Nervosas Espinhais , Ferimentos por Arma de Fogo/complicações , Adulto , Humanos , Disco Intervertebral/patologia , Deslocamento do Disco Intervertebral/patologia , Masculino , Raízes Nervosas Espinhais/patologia , Ferimentos por Arma de Fogo/patologia
17.
Neurosurgery ; 8(1): 104-7, 1981 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-7207765

RESUMO

Three new cases of intradural lumbar disc hernia are added to the 25 previously published cases. The clinical features of the lesion, which usually occurs at the level of the cauda equina, and its pathogenesis are discussed.


Assuntos
Deslocamento do Disco Intervertebral/diagnóstico por imagem , Adulto , Cauda Equina/diagnóstico por imagem , Dura-Máter/diagnóstico por imagem , Humanos , Deslocamento do Disco Intervertebral/complicações , Vértebras Lombares/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Radiografia , Compressão da Medula Espinal/etiologia
18.
Neurosurgery ; 42(1): 51-5, 1998 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-9442503

RESUMO

OBJECTIVE: Posttraumatic acute subdural hematoma carries a high postoperative mortality rate. Preservation of subarachnoid spaces in preoperative computed tomographic (CT) scans may be interpreted as a favorable prognostic factor. METHODS: Thirty-one cases of posttraumatic acute subdural hematoma operated on consecutively, with an interval from trauma to surgery of less than 4 hours and a Glasgow Coma Scale score of less than 8, were reviewed. The immediate and long-term results were evaluated with reference to preoperative CT images, distinguishing cases with preserved subarachnoid spaces from the others. RESULTS: In 5 of the 31 cases, preoperative CT scans showed intact subarachnoid spaces and the absence of blood in the cerebrospinal fluid. These cases presented a much better postoperative course than did the others. CONCLUSION: The presence of intact subarachnoid spaces in CT scans for patients with acute subdural hematomas may be interpreted as an extremely favorable prognostic factor; this may be attributed to the protective effect of the integral visceral membrane of the hematoma, which prevents the diffusion of neurotoxic and vasoactive substances into the subarachnoid spaces. This group of hematomas was classified as "intradural," with reference to the concept of the "subdural compartment" described in studies conducted using an electron microscope.


Assuntos
Traumatismos Craniocerebrais/complicações , Dura-Máter/diagnóstico por imagem , Hematoma Subdural/diagnóstico por imagem , Hematoma Subdural/etiologia , Tomografia Computadorizada por Raios X , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Hematoma Subdural/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Mortalidade , Período Pós-Operatório , Prognóstico , Espaço Subaracnóideo/diagnóstico por imagem , Resultado do Tratamento
19.
Neurosurgery ; 34(3): 515-8; discussion 518-9, 1994 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-8190229

RESUMO

Eight patients underwent microsurgical excision of small, deep-seated cavernous angiomas (maximum diameter, 0.9 to 2 cm; distance from cortical surface, 3.5 to 6.5 cm) by the stereotactic implantation of a guide catheter. In all cases, the lesion was quickly localized and completely removed. None of the patients had postoperative neurological deficits. Once the guide catheter has been implanted, the stereotactic headframe can be removed, allowing the unobstructed use of the operating microscope with frames not suitable for open surgery. Target localization is not affected by brain movement, which is inevitable during open surgery. The procedure described here is simple to perform and relatively inexpensive. It requires no specially designed equipment, only a standard stereotactic apparatus, an operating microscope, and the usual microsurgical instruments.


Assuntos
Neoplasias Encefálicas/cirurgia , Hemangioma Cavernoso/cirurgia , Microcirurgia , Técnicas Estereotáxicas , Adulto , Neoplasias Encefálicas/diagnóstico , Córtex Cerebral/cirurgia , Craniotomia , Feminino , Hemangioma Cavernoso/diagnóstico , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios X
20.
Neurosurgery ; 31(4): 628-34; discussion 634-5, 1992 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-1407447

RESUMO

We present a series of 19 surgically treated osteomas involving the orbital walls. Eight were localized at the junction of the frontal sinus and orbital roof, three were frontoethmoidal, two were of the orbital roof, one of the lateral wall, one of the orbital floor, and four involved all the walls of the orbit and were termed panorbital. All tumors at the junction of the frontal sinus and the orbital roof as well as those originating from the orbital roof proper were removed by frontal craniotomy. In the three that were frontoethmoidal, osteotomies were performed. Lateral and inferior orbitotomies were done when the corresponding orbital walls were affected. The four panorbital osteomas required large frontotemporal craniotomies in association with superolateral orbitotomy and zygomatic and/or malar osteotomy, when necessary. Satisfactory cosmetic and functional results were obtained in all but two cases of panorbital osteomas, in which the neurological deficit worsened after surgery. We discuss the choice of the various approaches described, with reference to the relevant literature.


Assuntos
Neoplasias Orbitárias/cirurgia , Osteossarcoma/cirurgia , Adulto , Transplante Ósseo , Seio Etmoidal/patologia , Seio Etmoidal/cirurgia , Exoftalmia/patologia , Exoftalmia/cirurgia , Feminino , Seguimentos , Seio Frontal/patologia , Seio Frontal/cirurgia , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Neoplasias Orbitárias/diagnóstico , Osteossarcoma/diagnóstico , Neoplasias dos Seios Paranasais/diagnóstico , Neoplasias dos Seios Paranasais/cirurgia , Complicações Pós-Operatórias/diagnóstico , Tomografia Computadorizada por Raios X , Acuidade Visual/fisiologia
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