Abstract:
:OBJECT The frontal and insular fiber network in humans remains largely unknown. This study investigated the connectivity of the frontal and anterior insular network in humans using cortico-cortical evoked potential (CCEP). METHODS This retrospective analysis included 18 patients with medically intractable focal epilepsy who underwent stereoelectroencephalography and CCEP. Alternating 1-Hz electrical stimuli were delivered to parts of the frontal lobe and anterior insula (prefrontal cortex [PFC], ventrolateral and dorsolateral premotor area [vPM and dPM, respectively], presupplementary motor area [pre-SMA], SMA, frontal operculum, and anterior insula). A total of 40-60 stimuli were averaged in each trial to obtain CCEP responses. The distribution of CCEP was evaluated by calculating the root mean square of CCEP responses. RESULTS Stimulation of the PFC elicited prominent CCEP responses in the medial PFC and PMs over the ipsilateral hemisphere. Stimulation of the vPM and dPM induced CCEP responses in the ipsilateral frontoparietal areas. Stimulation of the pre-SMA induced CCEP responses in the ipsilateral medial and lateral frontal areas and contralateral pre-SMA, whereas stimulation of the SMA induced CCEP responses in the bilateral frontoparietal areas. Stimulation of the frontal operculum induced CCEP responses in the ipsilateral insula and temporal operculum. CCEPs were observed in the ipsilateral medial, lateral frontal, and frontotemporal operculum in the anterior insular stimulation. Stimulation of the vPM and SMA led to the network in the dominant hemisphere being more developed. CONCLUSIONS Various regions within the frontal lobe and anterior insula were linked to specific ipsilateral and contralateral regions, which may reflect distinct functional roles.
journal_name
J Neurosurgjournal_title
Journal of neurosurgeryauthors
Enatsu R,Gonzalez-Martinez J,Bulacio J,Mosher JC,Burgess RC,Najm I,Nair DRdoi
10.3171/2015.6.JNS15622subject
Has Abstractpub_date
2016-07-01 00:00:00pages
90-101issue
1eissn
0022-3085issn
1933-0693journal_volume
125pub_type
杂志文章abstract::Bilateral intracerebral hydatid cysts developed in a 14-year-old patient after an infarct of presumed embolic origin in the left frontotemporoparietal region. The average rate of growth of these cysts was about 5 cm per year. This suggests that the growth rate is far from uniform and indeed, particularly in young pati...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1985.62.5.0781
更新日期:1985-05-01 00:00:00
abstract:OBJECT:Glioma resection under conscious ("awake") sedation (CS) is used for eloquent areas of the brain to minimize postoperative neurological deficits. The objective of this study was to compare the duration of hospital stay, overall hospital cost, perioperative morbidity, and postoperative patient functional status i...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2010.5.JNS1041
更新日期:2011-03-01 00:00:00
abstract::This report describes a new surgical technique to improve the results of conventional hypoglossal-facial nerve anastomosis that does not necessitate the use of nerve grafts or hemihypoglossal nerve splitting. Using this technique, the mastoid process is partially resected to open the stylomastoid foramen and the desce...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1997.86.2.0203
更新日期:1997-02-01 00:00:00
abstract::A survey of 89 patients with subdural empyema was conducted to assess the incidence of late seizures and morbidity in this disease. Twenty-four patients died during the acute stage of the illness and, of the 65 survivors, 13 were lost or had incomplete follow-up review. Hemiparesis occurred in 48 of the survivors duri...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1983.58.4.0569
更新日期:1983-04-01 00:00:00
abstract:OBJECT:Diffuse axonal injury (DAI) is a major complication of traumatic brain injury (TBI) that leads to functional and psychological deficits. Although DAI is frequently underdiagnosed by conventional imaging modalities, it can be demonstrated using diffusion tensor imaging. The aim of this study was to assess the pre...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2005.103.2.0298
更新日期:2005-08-01 00:00:00
abstract::A series of 87 patients with severe brain injury were studied. Intracranial pressure (ICP) monitoring and external ventricular drainage were used to control ICP at high and low levels. Clearance of ytterbium-169-labeled diethylenetriaminepentaacetic acid (169Yb-DTPA), Evans blue dye, and ventricular cerebrospinal flui...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1984.61.4.0707
更新日期:1984-10-01 00:00:00
abstract::An extra-abdominal cyst filled with cerebrospinal fluid was found postpartum in a patient with a ventriculoperitoneal (VP) shunt. No similar complication of VP shunting has been reported before. ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1986.64.1.0151
更新日期:1986-01-01 00:00:00
abstract:OBJECT:The goal of this study was fourfold: 1) to determine the incidence of traumatic subarachnoid hemorrhage (tSAH) in patients with traumatic brain injury (TBI); 2) to verify agreement in the diagnosis of tSAH in a multicenter study; 3) to assess the incidence of tSAH on the outcome of the patient; and 4) to establi...
journal_title:Journal of neurosurgery
pub_type: 杂志文章,多中心研究
doi:10.3171/jns.2003.98.1.0037
更新日期:2003-01-01 00:00:00
abstract:OBJECT:Preoperative anemia may be treated with a blood transfusion. Both are associated with adverse outcomes in various surgical procedures, but this has not been clearly elucidated in surgery for cerebral aneurysms. In this study the authors assessed the association of preoperative anemia and perioperative blood tran...
journal_title:Journal of neurosurgery
pub_type: 杂志文章,多中心研究
doi:10.3171/2014.10.JNS14551
更新日期:2015-07-01 00:00:00
abstract:OBJECTIVE:The authors sought to determine the predictors of late neurological and hospital-acquired medical complications (HACs) in patients with low-grade aneurysmal subarachnoid hemorrhage (aSAH). METHODS:The authors conducted a retrospective study of 424 patients with low-grade aSAH admitted to their institution fr...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2019.1.JNS182394
更新日期:2019-05-03 00:00:00
abstract::The authors report on the case of a 29-year-old man who presented with new-onset, generalized tonic-clonic seizures 11 years after being treated with a halo orthosis for a neurologically intact C-7 fracture. Neuroimaging and surgical findings indicated that the epileptic focus was scar tissue, which developed secondar...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/spi.2000.92.2.0233
更新日期:2000-04-01 00:00:00
abstract:OBJECT:Microangiopathy associated with hypertension is a notable cause of cerebral small vessel disease (SVD), including deep intracerebral hemorrhage (ICH) and lacunar infarct. Dotlike low-intensity spots (dotlike hemosiderin spots: dotHSs) on T2*-weighted magnetic resonance (MR) images have been histologically diagno...
journal_title:Journal of neurosurgery
pub_type: 临床试验,杂志文章
doi:10.3171/jns.2004.101.6.0915
更新日期:2004-12-01 00:00:00
abstract::Hemodynamic insufficiency resulting from extracranial vertebral artery stenosis or occlusion is believed to be the major cause of vertebrobasilar transient ischemic attacks. The major difficulties in treating this disorder have been exposure of the vertebral artery distal to the stenosis and the risk of vertebral arte...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1985.62.3.0334
更新日期:1985-03-01 00:00:00
abstract::The author describes the history of neurosurgery in Manitoba, with particular emphasis on events that occurred after his arrival there in 1950. Highlights of global neurosurgery are spliced into the author's reminiscences to anchor the local history with that of neurosurgery as a whole. ...
journal_title:Journal of neurosurgery
pub_type: 历史文章,杂志文章
doi:10.3171/jns.1995.82.5.0900
更新日期:1995-05-01 00:00:00
abstract:OBJECT:Intracranial germinomas commonly occur in the pineal region, the floor of the third ventricle (hypothalamus), or both, and they are often associated with diabetes insipidus (DI). The authors conducted a study to correlate preoperative DI with the endoscopic and magnetic resonance (MR) imaging evidence of tumor o...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/ped.2004.100.5.0430
更新日期:2004-05-01 00:00:00
abstract::OBJECTIVE In severe traumatic brain injury (TBI), the effects of decompressive craniectomy (DC) on brain tissue oxygen pressure (PbtO2) and outcome are unclear. The authors aimed to investigate whether changes in PbtO2 after DC could be used as an independent prognostic factor. METHODS The authors conducted a retrospe...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2017.1.JNS161840
更新日期:2018-05-01 00:00:00
abstract:OBJECT:Scar formation in the carotid sheath is often identified during carotid endarterectomy (CEA) in patients with previous cardiac surgery, and dissection of the carotid sheath and exposure of the carotid arteries in such patients are difficult. The purpose of the present study was to investigate factors related to ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2010.4.JNS091819
更新日期:2010-10-01 00:00:00
abstract:OBJECT:Prior attempts to define normal cerebellar tonsil position have been limited by small numbers of patients precluding analysis of normal distribution by age group. The authors' objective in the present study was to analyze cerebellar tonsil location in every age range. METHODS:Two thousand four hundred patients ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2013.5.JNS121825
更新日期:2013-09-01 00:00:00
abstract::The hydrogen clearance method was used to measure total and focal cerebral blood flow (CBF) in the monkey before and for 5 hours after a simulated subarachnoid hemorrhage (SAH). Some monkeys also received 0.2 to 1.0 mg/kg phentolamine intracisternally 3 hours after SAH. Results show that SAH did not change cerebrovasc...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1976.44.3.0353
更新日期:1976-03-01 00:00:00
abstract:OBJECT:Little has been written about the appropriate diagnosis, investigation, and management of subarachnoid-pleural fistula (SPF). The authors report a series of patients with SPF that developed after resection of spinal tumor and discuss the diagnosis and treatment of this entity. METHODS:Between 1993 and 2002, nin...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/spi.2004.100.4.0332
更新日期:2004-04-01 00:00:00
abstract:OBJECT:The Wilms tumor 1 (WT1) protein-a developmentally regulated transcription factor-is aberrantly expressed in gliomas and promotes their malignant phenotype. However, little is known about the molecular allies that help it mediate its oncogenic functions in glioma cells. METHODS:The authors used short interfering...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2011.11.JNS111455
更新日期:2012-04-01 00:00:00
abstract:OBJECT:In this study the authors compare the clinical outcomes after particle embolization of hemangioblastomas in the cerebellum and spinal cord. They also review the literature of similar cases. METHODS:Seven patients with hemangioblastomas in the spinal cord (four patients) and cerebellum (three patients) underwent...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2007.106.6.994
更新日期:2007-06-01 00:00:00
abstract::A patient is reported with a purely pial arteriovenous malformation (AVM) supplied from the posterior parietal artery. The prominent middle meningeal artery contributed to opacification of the angular branches distal to the AVM, but did not contribute to the AVM. After total removal of the AVM, the angular branches be...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1979.50.4.0522
更新日期:1979-04-01 00:00:00
abstract::Pituitary apoplexy has not been reported in the setting of lymphocytic hypophysitis. The authors present the case of a woman with sudden vision loss and headache. Magnetic resonance imaging revealed focal hemorrhages in a sellar lesion with suprasellar extension. The results of histopathological analysis were consiste...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2003.98.1.0183
更新日期:2003-01-01 00:00:00
abstract::A 24-hour intensive intravenous dosing regimen with the glucocorticoid steroid methylprednisolone has recently been shown to be effective in enhancing neurological recovery in spinal cord-injured patients when initiated within 8 hours after injury. The state of knowledge concerning the neuroprotective pharmacology of ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章,评审
doi:10.3171/jns.1992.76.1.0013
更新日期:1992-01-01 00:00:00
abstract::In a retrospective analysis, the authors studied the pial and dural blood supplies in 74 intracranial meningiomas and quantified their associated peritumoral brain edema (PTBE). The extent and localization of pial blush in relation to the total tumor volume were determined angiographically. The amount of edema and tum...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1997.87.3.0368
更新日期:1997-09-01 00:00:00
abstract::Suprascapular nerve entrapment (SNE) in the suprascapular notch is a rare entity that must be considered in the differential diagnosis of radicular pain, as well as that of shoulder discomfort. Over a period of 10 years (1985-1995), the authors treated 28 cases of SNE in 27 patients by surgical decompression of the ne...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1996.85.6.1020
更新日期:1996-12-01 00:00:00
abstract::The intracranial vertebral artery and its branches are a common site of aneurysms in the posterior fossa. Ninety-four aneurysms in 86 patients were analyzed for their clinical manifestation, diagnosis, and treatment. There were three distinct varieties of aneurysm in this group: 56 (60%) saccular aneurysms, 26 (28%) d...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1988.69.3.0345
更新日期:1988-09-01 00:00:00
abstract::Surgical sacrifice of the carotid artery is a frequently anticipated event during the treatment of certain aneurysms and tumors. The ability to predict tolerance to carotid artery occlusion is therefore of benefit when planning procedures in which the carotid artery is at risk. A trial of carotid artery occlusion usin...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1994.81.1.0015
更新日期:1994-07-01 00:00:00
abstract::Klatzo's classification of brain edema into two types, vasogenic and cytotoxic, has been in general use since 1967. The former involves overall brain swelling due to fluid entry from the vasculature because of openings in the blood-brain barrier (BBB), whereas the latter refers to cell swelling without any loss of the...
journal_title:Journal of neurosurgery
pub_type: 杂志文章,评审
doi:10.3171/jns.1995.83.6.1051
更新日期:1995-12-01 00:00:00