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2.
Br J Neurosurg ; 31(4): 478-480, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27340929

RESUMO

Iatrogenic injury to the vertebral artery during cervical neurofibroma excision is rarely mentioned but may lead to potentially catastrophic complications. We reported a case of iatrogenic vertebral artery injury during cervical neurofibroma excision with management strategy.


Assuntos
Neoplasias de Bainha Neural/cirurgia , Neurofibroma/cirurgia , Artéria Vertebral/lesões , Adolescente , Falso Aneurisma/etiologia , Falso Aneurisma/cirurgia , Vértebras Cervicais/cirurgia , Humanos , Doença Iatrogênica , Complicações Intraoperatórias/etiologia , Imageamento por Ressonância Magnética , Masculino , Imagem Multimodal , Quadriplegia/etiologia , Compressão da Medula Espinal/etiologia , Tomografia Computadorizada por Raios X , Artéria Vertebral/cirurgia
3.
Turk Neurosurg ; 23(4): 539-42, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24101279

RESUMO

Melanocytomas are rare melanocytic tumors of the central nervous system and its presence at the foramen magnum is extremely rare. We report a case of a 55-year-old male presenting with progressive quadriparesis over one year. Imaging showed a well-defined intradural extramedullary lobulated mass at craniovertebral junction towards the left side and extending to left C2-3 neural foramina. Patient was operated through foramen magnum approach with near total excision of tumor. On a ten-month follow up, he was ambulatory with normal motor power on right side of body and left lower limb and with motor power of 4-/5 in left upper limb. Histopathology and immunohistochemistry confirmed the lesion to be a melanocytoma.


Assuntos
Vértebras Cervicais/cirurgia , Neoplasias da Coluna Vertebral/cirurgia , Vértebras Cervicais/patologia , Forame Magno/cirurgia , Humanos , Hipestesia/etiologia , Processamento de Imagem Assistida por Computador , Imuno-Histoquímica , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Debilidade Muscular/etiologia , Procedimentos Neurocirúrgicos , Quadriplegia/etiologia , Neoplasias da Coluna Vertebral/patologia , Resultado do Tratamento
5.
Trials ; 13: 87, 2012 Jun 21.
Artigo em Inglês | MEDLINE | ID: mdl-22721545

RESUMO

BACKGROUND: Worldwide, over 10 million people are killed or hospitalized because of traumatic brain injury each year. About 90% of deaths occur in low- and middle-income countries. The condition mostly affects young adults, and many experience long lasting or permanent disability. The social and economic burden is considerable. Tranexamic acid (TXA) is commonly given to surgical patients to reduce bleeding and the need for blood transfusion. It has been shown to reduce the number of patients receiving a blood transfusion by about a third, reduces the volume of blood transfused by about one unit, and halves the need for further surgery to control bleeding in elective surgical patients. METHODS/DESIGN: The CRASH-3 trial is an international, multicenter, pragmatic, randomized, double-blind, placebo-controlled trial to quantify the effects of the early administration of TXA on death and disability in patients with traumatic brain injury. Ten thousand adult patients who fulfil the eligibility criteria will be randomized to receive TXA or placebo. Adults with traumatic brain injury, who are within 8 h of injury and have any intracranial bleeding on computerized tomography (CT scan) or Glasgow Coma Score (GCS) of 12 or less can be included if the responsible doctor is substantially uncertain as to whether or not to use TXA in this patient. Patients with significant extracranial bleeding will be excluded since there is evidence that TXA improves outcome in these patients. Treatment will entail a 1 g loading dose followed by a 1 g maintenance dose over 8 h.The main analyses will be on an 'intention-to-treat' basis, irrespective of whether the allocated treatment was received. Results will be presented as appropriate effect estimates with a measure of precision (95% confidence intervals). Subgroup analyses for the primary outcome will be based on time from injury to randomization, the severity of the injury, location of the bleeding, and baseline risk. Interaction tests will be used to test whether the effect of treatment differs across these subgroups. A study with 10,000 patients will have approximately 90% power to detect a 15% relative reduction from 20% to 17% in all-cause mortality. TRIAL REGISTRATION: Current Controlled Trials ISRCTN15088122; Clinicaltrials.gov NCT01402882.


Assuntos
Antifibrinolíticos/uso terapêutico , Lesões Encefálicas/tratamento farmacológico , Protocolos Clínicos , Ácido Tranexâmico/uso terapêutico , Adulto , Análise Custo-Benefício , Coleta de Dados , Método Duplo-Cego , Humanos , Consentimento Livre e Esclarecido , Projetos de Pesquisa , Ácido Tranexâmico/efeitos adversos
6.
Emerg Med Australas ; 23(5): 632-9, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21995479

RESUMO

Injury is a major global health problem. India suffers more deaths from vehicle collisions than any other country. Since 2004 The Alfred Hospital in Melbourne, Australia has established strong linkages with Christian Medical College (CMC) in Ludhiana, the Punjab, India and Teaching Hospital Karapitiya (THK) in Galle, Sri Lanka, supporting trauma care capacity-building. In response to the demand for a systematic approach to trauma care in India and Sri Lanka, The Alfred Trauma Team Training Program was developed, funded by the Australian Agency for International Development, The Alfred and its participating staff, CMC and THK. The aim of the programme was to enhance the understanding and skill in reception and resuscitation of critically injured patients in a cohort of providers of emergency care. Participants were selected from nine sites: CMC, five government hospitals across the Punjab, Delhi, THK and Teaching Hospital Peradeniya in Kandy, Sri Lanka. The programme was conducted at CMC, with follow-up visits to THK and Teaching Hospital Peradeniya, and focused on team-based scenarios. The faculty included emergency clinicians from The Alfred. Participants showed improvement in the knowledge and skills of trauma reception and resuscitation. Observed programme challenges included the variety of health systems from which the participants were sourced. The Trauma Team Training Program allowed Australian emergency clinicians to impart some skills towards improving the level of trauma reception and resuscitation by 26 participants from nine sites. The team-based systematic approach to the delivery of emergency trauma care was valued by the participants.


Assuntos
Auxiliares de Emergência/educação , Capacitação em Serviço , Ferimentos e Lesões , Educação Médica Continuada , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Índia , Avaliação de Programas e Projetos de Saúde , Sri Lanka
7.
Lancet ; 377(9771): 1096-101, 1101.e1-2, 2011 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-21439633

RESUMO

BACKGROUND: The aim of the CRASH-2 trial was to assess the effects of early administration of tranexamic acid on death, vascular occlusive events, and blood transfusion in trauma patients with significant haemorrhage. Tranexamic acid significantly reduced all-cause mortality. Because tranexamic acid is thought to exert its effect through inhibition of fibrinolysis, we undertook exploratory analyses of its effect on death due to bleeding. METHODS: The CRASH-2 trial was undertaken in 274 hospitals in 40 countries. 20,211 adult trauma patients with, or at risk of, significant bleeding were randomly assigned within 8 h of injury to either tranexamic acid (loading dose 1 g over 10 min followed by infusion of 1 g over 8 h) or placebo. Patients were randomly assigned by selection of the lowest numbered treatment pack from a box containing eight numbered packs that were identical apart from the pack number. Both participants and study staff (site investigators and trial coordinating centre staff ) were masked to treatment allocation. We examined the effect of tranexamic acid on death due to bleeding according to time to treatment, severity of haemorrhage as assessed by systolic blood pressure, Glasgow coma score (GCS), and type of injury. All analyses were by intention to treat. The trial is registered as ISRCTN86750102, ClinicalTrials.gov NCT00375258, and South African Clinical Trial Register/Department of Health DOH-27-0607-1919. FINDINGS: 10,096 patients were allocated to tranexamic acid and 10,115 to placebo, of whom 10,060 and 10,067, respectively, were analysed. 1063 deaths (35%) were due to bleeding. We recorded strong evidence that the effect of tranexamic acid on death due to bleeding varied according to the time from injury to treatment (test for interaction p<0.0001). Early treatment (≤1 h from injury) significantly reduced the risk of death due to bleeding (198/3747 [5.3%] events in tranexamic acid group vs 286/3704 [7.7%] in placebo group; relative risk [RR] 0.68, 95% CI 0.57-0.82; p<0.0001). Treatment given between 1 and 3 h also reduced the risk of death due to bleeding (147/3037 [4.8%] vs 184/2996 [6.1%]; RR 0.79, 0.64-0.97; p=0.03). Treatment given after 3 h seemed to increase the risk of death due to bleeding (144/3272 [4.4%] vs 103/3362 [3.1%]; RR 1.44, 1.12-1.84; p=0.004). We recorded no evidence that the effect of tranexamic acid on death due to bleeding varied by systolic blood pressure, Glasgow coma score, or type of injury. INTERPRETATION: Tranexamic acid should be given as early as possible to bleeding trauma patients. For trauma patients admitted late after injury, tranexamic acid is less effective and could be harmful. FUNDING: UK NIHR Health Technology Assessment programme, Pfizer, BUPA Foundation, and J P Moulton Charitable Foundation.


Assuntos
Antifibrinolíticos/uso terapêutico , Hemorragia/tratamento farmacológico , Ácido Tranexâmico/uso terapêutico , Ferimentos e Lesões/complicações , Adulto , Hemorragia/mortalidade , Humanos , Modelos Logísticos , Fatores de Tempo
8.
Lancet ; 376(9734): 23-32, 2010 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-20554319

RESUMO

BACKGROUND: Tranexamic acid can reduce bleeding in patients undergoing elective surgery. We assessed the effects of early administration of a short course of tranexamic acid on death, vascular occlusive events, and the receipt of blood transfusion in trauma patients. METHODS: This randomised controlled trial was undertaken in 274 hospitals in 40 countries. 20 211 adult trauma patients with, or at risk of, significant bleeding were randomly assigned within 8 h of injury to either tranexamic acid (loading dose 1 g over 10 min then infusion of 1 g over 8 h) or matching placebo. Randomisation was balanced by centre, with an allocation sequence based on a block size of eight, generated with a computer random number generator. Both participants and study staff (site investigators and trial coordinating centre staff) were masked to treatment allocation. The primary outcome was death in hospital within 4 weeks of injury, and was described with the following categories: bleeding, vascular occlusion (myocardial infarction, stroke and pulmonary embolism), multiorgan failure, head injury, and other. All analyses were by intention to treat. This study is registered as ISRCTN86750102, Clinicaltrials.govNCT00375258, and South African Clinical Trial RegisterDOH-27-0607-1919. FINDINGS: 10 096 patients were allocated to tranexamic acid and 10 115 to placebo, of whom 10 060 and 10 067, respectively, were analysed. All-cause mortality was significantly reduced with tranexamic acid (1463 [14.5%] tranexamic acid group vs 1613 [16.0%] placebo group; relative risk 0.91, 95% CI 0.85-0.97; p=0.0035). The risk of death due to bleeding was significantly reduced (489 [4.9%] vs 574 [5.7%]; relative risk 0.85, 95% CI 0.76-0.96; p=0.0077). INTERPRETATION: Tranexamic acid safely reduced the risk of death in bleeding trauma patients in this study. On the basis of these results, tranexamic acid should be considered for use in bleeding trauma patients. FUNDING: UK NIHR Health Technology Assessment programme, Pfizer, BUPA Foundation, and J P Moulton Charitable Foundation.


Assuntos
Antifibrinolíticos/uso terapêutico , Transfusão de Sangue , Hemorragia/tratamento farmacológico , Trombose/prevenção & controle , Ácido Tranexâmico/uso terapêutico , Ferimentos e Lesões/complicações , Adulto , Feminino , Hemorragia/etiologia , Hemorragia/mortalidade , Hemorragia/terapia , Humanos , Masculino , Trombose/etiologia
9.
Trials ; 10: 109, 2009 Dec 03.
Artigo em Inglês | MEDLINE | ID: mdl-19958521

RESUMO

BACKGROUND: Cerebral oedema is associated with significant neurological damage in patients with traumatic brain injury. Bradykinin is an inflammatory mediator that may contribute to cerebral oedema by increasing the permeability of the blood-brain barrier. We evaluated the safety and effectiveness of the non-peptide bradykinin B2 receptor antagonist Anatibant in the treatment of patients with traumatic brain injury. During the course of the trial, funding was withdrawn by the sponsor. METHODS: Adults with traumatic brain injury and a Glasgow Coma Scale score of 12 or less, who had a CT scan showing an intracranial abnormality consistent with trauma, and were within eight hours of their injury were randomly allocated to low, medium or high dose Anatibant or to placebo. Outcomes were Serious Adverse Events (SAE), mortality 15 days following injury and in-hospital morbidity assessed by the Glasgow Coma Scale (GCS), the Disability Rating Scale (DRS) and a modified version of the Oxford Handicap Scale (HIREOS). RESULTS: 228 patients out of a planned sample size of 400 patients were randomised. The risk of experiencing one or more SAEs was 26.4% (43/163) in the combined Anatibant treated group, compared to 19.3% (11/57) in the placebo group (relative risk = 1.37; 95% CI 0.76 to 2.46). All cause mortality in the Anatibant treated group was 19% and in the placebo group 15.8% (relative risk 1.20, 95% CI 0.61 to 2.36). The mean GCS at discharge was 12.48 in the Anatibant treated group and 13.0 in the placebo group. Mean DRS was 11.18 Anatibant versus 9.73 placebo, and mean HIREOS was 3.94 Anatibant versus 3.54 placebo. The differences between the mean levels for GCS, DRS and HIREOS in the Anatibant and placebo groups, when adjusted for baseline GCS, showed a non-significant trend for worse outcomes in all three measures. CONCLUSION: This trial did not reach the planned sample size of 400 patients and consequently, the study power to detect an increase in the risk of serious adverse events was reduced. This trial provides no reliable evidence of benefit or harm and a larger trial would be needed to establish safety and effectiveness. TRIAL REGISTRATION: This study is registered as an International Standard Randomised Controlled Trial, number ISRCTN23625128.


Assuntos
Antagonistas de Receptor B2 da Bradicinina , Lesões Encefálicas/tratamento farmacológico , Mediadores da Inflamação/administração & dosagem , Quinolinas/administração & dosagem , Adulto , Lesões Encefálicas/imunologia , Lesões Encefálicas/mortalidade , Escala de Coma de Glasgow , Humanos , Mediadores da Inflamação/efeitos adversos , Morbidade , Efeito Placebo , Quinolinas/efeitos adversos , Fatores de Risco
10.
Indian J Orthop ; 43(2): 205-9, 2009 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19838372

RESUMO

BACKGROUND: Cervical spondylotic myelopathy (CSM) is serious consequence of cervical intervertebral disk degeneration. Morbidity ranges from chronic neck pain, radicular pain, headache, myelopathy leading to weakness, and impaired fine motor coordination to quadriparesis and/or sphincter dysfunction. Surgical treatment remains the mainstay of treatment once myelopathy develops. Compared to more conventional surgical techniques for spinal cord decompression, such as anterior cervical discectomy and fusion, laminectomy, and laminoplasty, patients treated with corpectomy have better neurological recovery, less axial neck pain, and lower incidences of postoperative loss of sagittal plane alignment. The objective of this study was to analyze the outcome of corpectomy in cervical spondylotic myelopathy, to assess their improvement of symptoms, and to highlight complications of the procedure. MATERIALS AND METHODS: Twenty-four patients underwent cervical corpectomy for cervical spondylotic myelopathy during June 1999 to July 2005.The anterior approach was used. Each patient was graded according to the Nuricks Grade (1972) and the modified Japanese Orthopaedic Association (mJOA) Scale (1991), and the recovery rate was calculated. RESULTS: Preoperative patients had a mean Nurick's grade of 3.83, which was 1.67 postoperatively. Preoperative patients had a mean mJOA score of 9.67, whereas postoperatively it was 14.50. The mean recovery rate of patients postoperatively was 62.35% at a mean follow-up of 1 year (range, 8 months to 5 years).The complications included one case (4.17%) of radiculopathy, two cases (8.33%) of graft displacement, and two cases (8.33%) of screw back out/failure. CONCLUSIONS: Cervical corpectomy is a reliable and rewarding procedure for CSM, with functional improvement in most patients.

11.
Neurol India ; 57(2): 197-9, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19439855

RESUMO

Technological development in neuroendoscopy has lead to an expansion of its applications. The dimensions of a microsurgical approach to the brain can greatly be enlarged with the use of endoscope, making it possible to look behind structures and around corners. We performed an endoscopic assisted microsurgical decompression of an adenoid cystic carcinoma of paranasal sinus with intracranial sellar extension with good results.


Assuntos
Carcinoma Adenoide Cístico/cirurgia , Descompressão Cirúrgica/métodos , Endoscopia , Microcirurgia/métodos , Neoplasias Hipofisárias/cirurgia , Sela Túrcica/cirurgia , Adulto , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Tomografia Computadorizada por Raios X/métodos
12.
Indian J Pathol Microbiol ; 47(1): 32-3, 2004 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-15471121

RESUMO

Primary carcinoid tumours of the presacral region are extremely infrequent with just a handful of such cases reported in literature. Tailgut cysts(retrorectal cystic hamartoma) are also very uncommon lesions which are usually identified in adult life. They are developmental abnormalities and consist of multiloculated cysts lined by squamous, transitional or glandular epithelium. Malignant transformation within tailgut cysts is rare; the tumours which arise include carcinoid tumours and adenocarcinomas. We report the unusual occurrence of a carcinoid tumour developing within a tailgut cyst.


Assuntos
Tumor Carcinoide/patologia , Adulto , Tumor Carcinoide/etiologia , Feminino , Hamartoma/complicações , Hamartoma/patologia , Humanos , Região Sacrococcígea
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