Abstract:
:OBJECTIVE Access to the third ventricle is a veritable challenge to neurosurgeons. In this context, anatomical and morphometric studies are useful for establishing the limitations and advantages of a particular surgical approach. The transchoroidal approach is versatile and provides adequate exposure of the middle and posterior regions of the third ventricle. However, the fornix column limits the exposure of the anterior region of the third ventricle. There is evidence that the unilateral section of the fornix column has little effect on cognitive function. This study compared the anatomical exposure afforded by the transforniceal-transchoroidal approach with that of the transchoroidal approach. In addition, a morphometric evaluation of structures that are relevant to and common in the 2 approaches was performed. METHODS The anatomical exposure provided by the transcallosal-transchoroidal and transcallosal-transforniceal-transchoroidal approaches was compared in 8 fresh cadavers, using a neuronavigation system. The working area, microsurgical exposure area, and angular exposure on the longitudinal and transversal planes of 2 anatomical targets (tuber cinereum and cerebral aqueduct) were compared. Additionally, the thickness of the right frontal lobe parenchyma, thickness of the corpus callosum trunk, and longitudinal diameter of the interventricular foramen were measured. The values obtained were submitted to statistical analysis using the Wilcoxon test. RESULTS In the quantitative evaluation, compared with the transchoroidal approach, the transforniceal-transchoroidal approach provided a greater mean working area (transforniceal-transchoroidal 150 ± 11 mm2; transchoroidal 121 ± 8 mm2; p < 0.05), larger mean microsurgical exposure area (transforniceal-transchoroidal 101 ± 9 mm2; transchoroidal 80 ± 5 mm2; p < 0.05), larger mean angular exposure area on the longitudinal plane for the tuber cinereum (transforniceal-transchoroidal 71° ± 7°; transchoroidal 64° ± 6°; p < 0.05), and larger mean angular exposure area on the longitudinal plane for the cerebral aqueduct (transforniceal-transchoroidal 62° ± 6°; transchoroidal 55° ± 5°; p < 0.05). No differences were observed in angular exposure along the transverse axis for either anatomical target (tuber cinereum and cerebral aqueduct; p > 0.05). The mean thickness of the right frontal lobe parenchyma was 35 ± 3 mm, the mean thickness of the corpus callosum trunk was 10 ± 1 mm, and the mean longitudinal diameter of the interventricular foramen was 4.6 ± 0.4 mm. In the qualitative assessment, it was noted that the transforniceal-transchoroidal approach led to greater exposure of the third ventricle anterior region structures. There was no difference between approaches in the exposure of the structures of the middle and posterior region. CONCLUSIONS The transforniceal-transchoroidal approach provides greater surgical exposure of the third ventricle anterior region than that offered by the transchoroidal approach. In the population studied, morphometric analysis established mean values for anatomical structures common to both approaches.
journal_name
J Neurosurgjournal_title
Journal of neurosurgeryauthors
Vitorino Araujo JL,Veiga JCE,Wen HT,de Andrade AF,Teixeira MJ,Otoch JP,Rhoton AL Jr,Preul MC,Spetzler RF,Figueiredo EGdoi
10.3171/2016.8.JNS16403subject
Has Abstractpub_date
2017-07-01 00:00:00pages
209-218issue
1eissn
0022-3085issn
1933-0693journal_volume
127pub_type
杂志文章abstract::Extensive histological and immunohistochemical studies were performed to elucidate the histopathogenesis of exencephaly induced in chick embryo as an experimental model. The findings were compared with those identified in a chick myeloschisis experimental model and in human autopsy cases. The experimental model of exe...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1990.72.3.0450
更新日期:1990-03-01 00:00:00
abstract::Increasing evidence suggests that disturbances in the modulatory influence of the vasoactive peptide, calcitonin gene-related peptide (CGRP), contribute to the pathogenesis of cerebral vasospasm after subarachnoid hemorrhage (SAH). However, only limited success has been achieved in trials attempting to ameliorate vaso...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1995.82.1.0091
更新日期:1995-01-01 00:00:00
abstract::A case-control analysis was performed to evaluate the association of 15 potential risk factors with postoperative infection in neurosurgical patients. All infections that developed postoperatively on the neurosurgical service at the University of Minnesota from January, 1970, to March, 1984, were identified. Among the...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1986.64.6.0902
更新日期:1986-06-01 00:00:00
abstract::To investigate the alteration of endothelium-dependent responses in chronic vasospasm after subarachnoid hemorrhage (SAH), experiments were carried out in the double-hemorrhage canine model. After the presence of vasospasm was confirmed by cerebral angiography on Days 0 and 7, pharmacological studies on the basilar ar...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1988.69.2.0239
更新日期:1988-08-01 00:00:00
abstract::This follow-up study analyzes the results of dorsal column stimulation instituted between 1972 and 1974 for the relief of pain in 84 patients, including 64 amputees. Good results decreased from 52.4% after 2 years of stimulation to 39% after 5 years. Special therapeutic problems in amputees are discussed. ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1980.52.3.0346
更新日期:1980-03-01 00:00:00
abstract::The use of drains in the treatment of syringomyelia has a simple and immediate appeal and has been practiced widely since the report of Abbe and Coley over 100 years ago. Good short-term results have been claimed in the past, but long-term outcome is largely unknown. An experience in Birmingham, England is reviewed in...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1995.82.1.0001
更新日期:1995-01-01 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:Occipital encephaloceles are relatively frequently encountered. Many investigators have addressed the embryogenesis of these formations, but the dural system has never before been studied. In this retrospective analysis the authors sought to gain a better understanding of the origins of these defects. METHODS:T...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1998.89.5.0738
更新日期:1998-11-01 00:00:00
abstract::Dose responses in vitro of the basilar arteries of the dog, rabbit, and man to human hemoglobin and reported. For each species, the response occurred over a range of 10(-9)M to greater than 10(-5)M hemoglobin. When compared to a maximum serotonin contraction, the relative constriction induced by 10(-5)M hemoglobin was...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1980.53.4.0486
更新日期:1980-10-01 00:00:00
abstract::Identification of blunt carotid injury prior to the development of ischemic symptoms requires aggressive screening of patients at risk. The treatment of these lesions has centered around long-term anticoagulation therapy. However, studies have revealed that many of these lesions persist despite medical treatment, as d...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1997.87.6.0825
更新日期:1997-12-01 00:00:00
abstract::Gadolinium-diethylenetriaminepenta-acetic acid (Gd-DTPA) is a chelated paramagnetic contrast agent under clinical trial for use in magnetic resonance (MR) imaging. The increased signal intensity following the intravenous infusion of contrast medium may improve the ability of MR imaging to delineate tumors. The use of ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1989.71.1.0049
更新日期:1989-07-01 00:00:00
abstract:OBJECT:Given the virtual absence of histologically detected, clinically unsuspected disease in intervertebral disc specimens, some authors have advocated that histological examination be discontinued. However, the examination of intervertebral disc specimens remains common practice in most pathology laboratories. No co...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1998.89.3.0378
更新日期:1998-09-01 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::Changes in the brain parenchyma and cerebrospinal fluid spaces were demonstrated in three cases of dural arteriovenous malformations by computerized tomography (CT). In various combinations, there were 1) vermiform or patchy enhancement after intravenous contrast infusion, 2) abnormal decreased density mainly in the w...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1980.53.5.0698
更新日期:1980-11-01 00:00:00
abstract:OBJECT:The authors of this retrospective review and analysis of the literature cover an institutional series of neurenteric cysts of the central nervous system in children treated in the magnetic resonance imaging era during a 14-year period. METHODS:Sixteen patients 20 days to 14 years of age are described. The most ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章,评审
doi:10.3171/ped.2005.103.6.0512
更新日期:2005-12-01 00:00:00
abstract::The authors report the neuroimaging features, treatment planning, and outcome in a case of radiosurgical thalamotomy targeting the centromedian nucleus (CMN) for stroke-induced thalamic pain. A 79-year-old man, with embolic occlusion of the left middle cerebral artery and large hemispheric infarction involving the tha...
journal_title:Journal of neurosurgery
pub_type: 杂志文章,评审
doi:10.3171/sup.2006.105.7.222
更新日期:2006-12-01 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:Prognostic factors for outcome after aneurysmal subarachnoid hemorrhage (SAH) include the clinical and pathological characteristics of the patient and hemorrhage as well as some aspects of treatment. Because treatment can vary between countries and continents, the authors used a large database of patients with S...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2008.10.JNS08184
更新日期:2009-07-01 00:00:00
abstract:OBJECT:Patients with intracranial vertebrobasilar artery (VBA) atherosclerotic occlusive disease have few therapeutic options. Unfortunately, VBA transient ischemic attacks (TIAs) herald a lethal or devastating event within 5 years in 25 to 30% of patients. The authors report their initial experience with eight patient...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2000.92.5.0771
更新日期:2000-05-01 00:00:00
abstract::The clinical and angiographic findings of 55 patients with a spinal dural arteriovenous malformation (AVM) are reviewed, and the results of surgery assessed. The symptoms of dural AVM are usually gradual in onset, and hemorrhage from this type of AVM is less common than in true spinal cord angiomas. Other clinical fea...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1984.60.2.0238
更新日期:1984-02-01 00:00:00
abstract:OBJECT:Systemic administration of 23.5% hypertonic saline enhances cerebral blood flow (CBF) in patients with poor-grade spontaneous subarachnoid hemorrhage (SAH). Whether the increment of change in CBF correlates with changes in autoregulation of CBF or outcome at discharge remains unknown. METHODS:Thirty-five patien...
journal_title:Journal of neurosurgery
pub_type: 临床试验,杂志文章
doi:10.3171/JNS-07/08/0274
更新日期:2007-08-01 00:00:00
abstract:OBJECT:The authors conducted a study to determine age-related changes in expression of transforming growth factor (TGF)-beta1, -beta2, -beta3, and Type I and Type II receptors in various cells in the nucleus pulposus and anulus fibrosus. Immunolocalization of TGFbetas and Type I and II receptors was examined during the...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/spi.2003.98.1.0063
更新日期:2003-01-01 00:00:00
abstract::The authors present a case of spontaneous regression of a herniated cervical nucleus pulposus in a patient with myelopathy. This 37-year-old woman developed sudden quadriparesis; she had reported no history of trauma. Magnetic resonance (MR) imaging revealed a large disc herniation and increased signal intensity of th...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/spi.1999.90.1.0138
更新日期:1999-01-01 00:00:00
abstract:OBJECTIVE:Placental alkaline phosphatase (PLAP) in CSF can provide a very high diagnostic value in cases of intracranial germ cell tumors (GCTs), especially in pure germinomas, to the level of not requiring histological confirmation. Unlike other tumor markers, reliable data analysis with respect to the diagnostic valu...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2018.3.JNS172520
更新日期:2018-09-28 00:00:00
abstract::An anatomical study of the vascularization of the hippocampus was performed on 30 hemispheres. There were a total of 140 arteries supplying the hippocampi, for an average of 4.7 arteries per hemisphere (range three to seven arteries). Based on the origin and caliber of the arteries supplying the hippocampus, the hemis...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1993.79.2.0256
更新日期:1993-08-01 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::Perimesencephalic nonaneurysmal subarachnoid hemorrhage (PNSAH) is a benign variant of SAH defined by clinical symptoms of SAH, a characteristic pattern of extravasated blood on noncontrast CT, and negative findings on cerebral angiography. This syndrome carries a favorable prognosis with reportedly no risk of recurre...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2011.5.JNS102020
更新日期:2011-09-01 00:00:00
abstract:OBJECT:Pituitary adenomas are usually benign tumors; however, some behave aggressively and metastasize. Until now, no specific marker of aggressive behavior or malignancy has been found. The polysialylated neural cell adhesion molecule (NCAM), which is highly expressed in embryonic tissues such as the brain and pituita...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2003.98.5.1084
更新日期:2003-05-01 00:00:00
abstract::Arteriovenous malformations (AVM's) of the medial temporal lobe frequently involve the basal ganglia and the thalamus and, for this reason, are commonly judged to be inoperable. However, when the medial involvement is limited to the posterolateral part of the thalamus and to the inferior portion of the basal ganglia l...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1982.56.1.0044
更新日期:1982-01-01 00:00:00
abstract::In this paper, the authors describe the history of neurosurgery at St. Michael's Hospital, University of Toronto. St. Michael's has long been regarded as one of the top teaching and research hospitals in Canada. A detailed literature review of published and unpublished works was performed to formulate a succinct but i...
journal_title:Journal of neurosurgery
pub_type: 历史文章,杂志文章
doi:10.3171/2016.9.JNS161119
更新日期:2017-12-01 00:00:00