Abstract:
OBJECT:The authors sought to establish whether the volume of the posterior fossa in children suffering from Chiari malformation Type I (CM-I) is smaller than normal, as has been suggested previously. They also investigated the role of syringomyelia in posterior fossa development. METHODS:Both posterior fossa volume (PFV) and intracranial volume (ICV) were measured using segmentation techniques on preoperative magnetic resonance images obtained in 42 children who underwent surgery for CM-I (mean age 127 months, range 36-204 months); 25 (59%) of the patients had syringomyelia. The PFV/ICV ratio was calculated to eliminate differential supratentorial growth. Patients who had deformities potentially interfering with skull growth or who had undergone a shunt insertion procedure prior to craniovertebral decompression were excluded. The results were compared with measurements of 51 healthy children using one-way analysis of variance. In patients with CM-I only, the mean PFV and PFV/ICV ratios were not statistically different than those for healthy children. In patients with both CM-I and syringomyelia (CM-S), the mean PFV and PFV/ICV ratios were statistically smaller than those for healthy children. The ICV was 1383 cm3 in the healthy group, 1459 cm3 in the CM-I only group, and 1400 cm3 in the CM-S group (p = 0.363); the PFV was 186 cm3 in the healthy group, 196 cm3 in the CM-I only group, and 171 cm3 in the CM-S group (p = 0.036); the PFV/ICV ratio was 0.135 in the healthy group, 0.134 in the CM-I only group, and 0.122 in the CM-S group (p = 0.004). These differences were more prominent in the first 10 years of life. CONCLUSIONS:Children with isolated CM-I do not have a PFV smaller than normal, whereas children with both CM-I and syringomyelia have a PFV significantly smaller than normal. This result indicates that the two subgroups may represent different phenotypic expression or even a different pathogenesis.
journal_name
J Neurosurgjournal_title
Journal of neurosurgeryauthors
Sgouros S,Kountouri M,Natarajan Kdoi
10.3171/ped.2006.105.2.101subject
Has Abstractpub_date
2006-08-01 00:00:00pages
101-6issue
2 Suppleissn
0022-3085issn
1933-0693journal_volume
105pub_type
杂志文章abstract:OBJECT:Females comprise an increasing percentage of the athlete population across all age groups, and analysis of recent literature reveals that they sustain more concussions in collegiate sports. Results of human and animal studies indicate that females may have poorer outcomes after traumatic brain injury; however, n...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2005.102.5.0856
更新日期:2005-05-01 00:00:00
abstract::Five cases of diastematomyelia are described and illustrated. These and a further 60 cases from the literature are analyzed. The data corroborate the opinion that early diagnosis and treatment result in a better prognosis. ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1979.51.3.0355
更新日期:1979-09-01 00:00:00
abstract::In order to elucidate some of the signal transduction processes in human meningioma cells, the authors studied the effect of epidermal growth factor (EGF) and bromocriptine on inositol phospholipid hydrolysis, using low-passage human meningioma cells in culture. Epidermal growth factor is a well-studied mitogenic fact...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1994.80.5.0890
更新日期:1994-05-01 00:00:00
abstract::Erdheim-Chester disease (ECD) is a rare multiple system histiocytosis that is characterized pathologically by xanthogranulomatous infiltrates and radiologically by symmetrical sclerosis of long bones. The diagnosis is often confirmed by biopsy of bone or of orbital or retroperitoneal soft tissue. Intracranial involvem...
journal_title:Journal of neurosurgery
pub_type: 杂志文章,评审
doi:10.3171/jns.2002.96.2.0344
更新日期:2002-02-01 00:00:00
abstract:OBJECT:The authors describe a method that utilizes an image-guided robotic radiosurgical apparatus (the CyberKnife) for treatment of cerebral arteriovenous malformations (AVMs). This procedure required the development of an original technique that allows a high degree of automation. METHODS:Angiographic images were im...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2008.10.JNS08749
更新日期:2009-10-01 00:00:00
abstract::Although there are many cities that can claim to have been the incubator of modern neurological surgery, the rise of this surgical subspecialty in New York City in the late 19th and early 20th century mirrors what was occurring around the world. The first confirmed brain tumor operation in the US was performed there i...
journal_title:Journal of neurosurgery
pub_type: 历史文章,杂志文章
doi:10.3171/2015.7.JNS15732
更新日期:2016-11-01 00:00:00
abstract:OBJECT:To establish a new method for the diagnosis of central nervous system diseases, the authors visualized the cerebral cisterns and ventricles via a percutaneous lumbosacral route by using newly developed fine, flexible fiberscopes. METHODS:Fine, flexible fiberscopes, 0.9 and 1.4 mm in diameter, were introduced up...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2007.12.17287
更新日期:2009-02-01 00:00:00
abstract::An elderly man presented with signs of normotensive hydrocephalus. Elevated protein content in the spinal fluid led to the diagnosis of an "asymptomatic" cauda equine neurilemoma and its removal. Within 6 weeks the patient's mental status had dramatically improved. Chronic transudation of plasma proteins including fib...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1976.45.1.0104
更新日期:1976-07-01 00:00:00
abstract::OBJECTIVE Epilepsy surgery is an effective means of treating focal epilepsy associated with long-term epilepsy-associated tumors. This study evaluated a large population of surgically treated patients with childhood onset of epilepsy and a histologically confirmed diagnosis of long-term epilepsy-associated tumors. The...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2016.9.JNS161176
更新日期:2017-11-01 00:00:00
abstract::Fourteen cases of primary intracranial germ-cell tumors are presented. Histologically, there were eight germinomas, three teratomas, and three germ-cell tumors of more than one histological type. Immunohistochemical studies revealed alpha-fetoprotein in yolk-sac tumor components in two cases and beta human choriogonad...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1985.62.6.0826
更新日期:1985-06-01 00:00:00
abstract::A case of solitary dorsal intramedullary schwannoma diagnosed by magnetic resonance imaging and treated surgically is reported. The authors review the previously published cases. The possible etiology of the tumor as well as some difficulties encountered in the diagnostic procedure and treatment are discussed. ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章,评审
doi:10.3171/jns.1991.74.5.0816
更新日期:1991-05-01 00:00:00
abstract:OBJECT:Growth factors such as bone morphogenetic protein-2 (BMP-2) have been proven to promote spine fusion and to overcome the disadvantages of an autologous bone graft. The optimum method to deliver such growth factors remains a matter of discussion. The purpose of this study was to determine the safety and efficacy ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/spi.2002.97.1.0040
更新日期:2002-07-01 00:00:00
abstract::The magnetic resonance longitudinal relaxation time (T1) and transverse relaxation time (T2) of the water proton of the periventricular white and cortical gray matter were measured for 17 control patients and 21 patients with suspected normal-pressure hydrocephalus (NPH). Of the latter group, 14 showed good response t...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1990.73.6.0864
更新日期:1990-12-01 00:00:00
abstract:OBJECT:Pituitary adenomas represent a large proportion of brain tumors that are increasing in incidence because of improved imaging techniques. Headache is the primary symptom in patients with large tumors (macroadenomas), but is also a symptom in patients with small tumors (microadenomas, tumors < 1.0 cm). The prevale...
journal_title:Journal of neurosurgery
pub_type: 杂志文章,评审
doi:10.3171/2008.8.JNS08805
更新日期:2009-02-01 00:00:00
abstract:OBJECTIVE:Cavernous sinus meningiomas are complex tumors that offer a perpetual challenge to skull base surgeons. The senior author has employed a management strategy for these lesions aimed at maximizing tumor control while minimizing neurological morbidity. This approach emphasizes combining "safe" tumor resection an...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2018.10.JNS181480
更新日期:2020-02-01 00:00:00
abstract::OBJECT The authors assessed the feasibility of the dynamic decompressive craniotomy technique using a novel cranial fixation plate with a telescopic component. Following a craniotomy in human cadaver skulls, the telescopic plates were placed to cover the bur holes. The plates allow constrained outward movement of the ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2015.6.JNS15706
更新日期:2016-09-01 00:00:00
abstract:OBJECT:Stereotactic radiosurgery is an increasingly used and the least invasive surgical option for patients with trigeminal neuralgia. In this study, the authors investigate the clinical outcomes in patients treated with this procedure. METHODS:Independently acquired data from 220 patients with idiopathic trigeminal ...
journal_title:Journal of neurosurgery
pub_type: 评论,信件
doi:10.3171/jns.2002.96.1.0160
更新日期:2002-01-01 00:00:00
abstract::A cohort of 514 hospitalized head-injury survivors was identified based on their injury and 448 (87%) of them were followed for 1 year. Comprehensive neurobehavioral testing was performed 1 month and 1 year after injury. The authors developed predictions of six neuropsychological and two psychosocial outcomes 1 year a...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1995.82.5.0764
更新日期:1995-05-01 00:00:00
abstract:OBJECT:In many new clinical trials of patients with malignant gliomas surgical intervention is incorporated as an integral part of tumor-directed interstitial therapies such as gene therapy, biodegradable wafer placement, and immunotherapy. Assessment of toxicity is a major component of evaluating these novel therapeut...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2003.98.6.1175
更新日期:2003-06-01 00:00:00
abstract:OBJECT:The authors performed an analysis of retrospectively obtained data to compare the outcomes of pediatric patients admitted to their institution for traumatic injuries resulting from car, motorcycle, and all-terrain vehicle (ATV) accidents. METHODS:The authors conducted a retrospective review of Columbus Children...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/ped.2006.105.3.182
更新日期:2006-09-01 00:00:00
abstract::The purpose of this prospective study was twofold: 1) to determine the sensitivity and specificity of computer-derived density spectral array in detecting analog electroencephalographic (EEG) ischemic pattern changes during carotid artery cross-clamping in patients undergoing carotid endarterectomy; and 2) to assess t...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1993.78.6.0884
更新日期:1993-06-01 00:00:00
abstract:OBJECT:Although nucleus ventralis intermedius stimulation has been shown to be safe and efficacious in the treatment of essential tremor, there is a subset of patients who eventually lose benefit from their stimulation. Proposed causes for this phenomenon include tolerance, disease progression, and suboptimal location....
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/JNS/2008/109/10/0640
更新日期:2008-10-01 00:00:00
abstract:OBJECT:Patients with gliomas frequently have cognitive deficits, and surgery can exacerbate these deficits. Preoperative assessment is therefore crucial in patients undergoing surgery for glioma in eloquent areas, because the proximity of functional areas increases the risk of permanent postoperative cognitive disturba...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2012.7.JNS12263
更新日期:2012-11-01 00:00:00
abstract::Lumbar cerebrospinal fluid (CSF) pressure was recorded in 116 adult neurosurgical patients in the lateral and sitting positions. The level of zero CSF pressure while in the sitting position (ZPS) and hydrostatic indifferent point (HIP) for lateral and sitting positions were determined and referred to the craniospinal ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1976.44.6.0698
更新日期:1976-06-01 00:00:00
abstract::The problem of implanted metals causing tissue damage by movement in patients exposed to MRI fields has produced a confusing welter of erroneous, pseudoscientific publications about magnetics, metals, medical equipment, and tissue compatibility. Quite simply, among the devices made for implantation, only those fabrica...
journal_title:Journal of neurosurgery
pub_type: 历史文章,杂志文章,评审
doi:10.3171/2012.1.JNS111786
更新日期:2012-07-01 00:00:00
abstract:OBJECT:Extracorporeal shock wave therapy (ESWT) is widely used for the clinical treatment of various human diseases. Recent studies have demonstrated that low-energy ESWT upregulates the expression of vascular endothelial growth factor (VEGF) and promotes angiogenesis and functional recovery in myocardial infarction an...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2014.8.JNS132562
更新日期:2014-12-01 00:00:00
abstract::A case is reported of a 63-year-old woman with thalamic syndrome as the presenting feature of an unruptured cerebral aneurysm. Unruptured aneurysm is a rare cause of thalamic syndrome; the possible mechanisms of production of the sensory disturbance are discussed. ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1995.82.2.0291
更新日期:1995-02-01 00:00:00
abstract::OBJECT Experimental studies have shown numerous neuroprotective properties of alcohol ("ethanol") after TBI, but clinical studies have provided conflicting results. The authors aimed to assess the relationship between positive blood alcohol concentration (BAC) on hospital admission and mortality after moderate to seve...
journal_title:Journal of neurosurgery
pub_type: 杂志文章,多中心研究
doi:10.3171/2015.4.JNS141746
更新日期:2016-06-01 00:00:00
abstract::Isolated nerve segments may inherently contain all of the necessary factors required to support regeneration within a silicone tube conduit placed across a nerve gap. Thirty-six adult Lewis rats each weighing approximately 250 g were randomized into three groups. A sciatic nerve gap (13-15 mm in length) was bridged by...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1997.87.6.0887
更新日期:1997-12-01 00:00:00
abstract::The AANS was founded in 1931 as an educational and scientific organization whose principal purpose was to foster optimum neurosurgical care. Because socioeconomic and political pressures on medicine generally and neurosurgery specifically have escalated in recent years, the American Association of Neurological Surgeon...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1994.81.5.0651
更新日期:1994-11-01 00:00:00