Prognostic significance of changes in the internal acoustic meatus caused by vestibular schwannoma.

Abstract:

:The prognostic significance of the variety of changes in the internal auditory meatus (IAM) caused by vestibular schwannoma was retrospectively analyzed in 69 consecutive patients with vestibular schwannoma. Preoperative bone-window computed tomography was used to classify IAM changes into extensive destruction (17%), widening (46%), and normal IAM (36%). Extensive destruction (47 +/- 19 years) and widening (48 +/- 13) occurred in significantly younger patients than normal IAM (59 +/- 9). Preoperative hearing was significantly more severely disturbed in patients with extensive destruction than in those with widening or normal IAM. IAM change was significantly related to the tumor consistency, as normal IAM was more common in patients with cystic tumor than in those with solid tumor. Postoperative hearing and facial function were worse in patients with severe IAM change, although the relationship between the IAM change and the surgical result was not significant. One patient with extensive destruction developed postoperative cerebrospinal fluid (CSF) leakage through the air cells around the IAM, and needed surgical repair. Severe IAM change occurs with solid tumor and causes severely disturbed preoperative hearing in younger patients, which reflects the tumor aggressiveness. Severe IAM change increases the technical difficulty of tumor removal and the risk of postoperative CSF leakage, and is associated with a poorer prognosis for patients with vestibular schwannoma.

authors

Yamakami I,Uchino Y,Kobayashi E,Saeki N,Yamaura A

doi

10.2176/nmc.42.465

keywords:

subject

Has Abstract

pub_date

2002-11-01 00:00:00

pages

465-70; discussion 470-1

issue

11

eissn

0470-8105

issn

1349-8029

pii

JST.JSTAGE/nmc/42.465

journal_volume

42

pub_type

杂志文章
  • Radiation-induced bilateral cystic frontal lobe necroses demonstrating a fluid-blood level--case report.

    abstract::A 41-year-old male developed radiation-induced bilateral cystic frontal lobe necroses after irradiation for an olfactory neuroblastoma. Computed tomography (CT) and magnetic resonance (MR) imaging revealed the lesions, one containing a fluid-blood level on CT scans and niveau formation on MR images. It was proved to b...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.32.104

    authors: Mineura K,Sasajima T,Kowada M,Ogawa T

    更新日期:1992-02-01 00:00:00

  • Supratentorial primitive neuroectodermal tumor in an aged patient--case report--.

    abstract::An 88-year-old woman presented with a supratentorial primitive neuroectodermal tumor (PNET) manifesting as disturbance of consciousness and left hemiplegia. Magnetic resonance imaging showed a large mass lesion in the right frontotemporal region. She underwent biopsy of the lesion that confirmed the diagnosis of PNET....

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.45.530

    authors: Shingu T,Kagawa T,Kimura Y,Takada D,Moritake K,Hoshii Y

    更新日期:2005-10-01 00:00:00

  • Central neurocytoma presenting with massive hemorrhage leading to coma--case report.

    abstract::A 21-year-old man presented with a hemorrhagic central neurocytoma manifesting as acute onset of disturbance of consciousness and right hemiparesis. Computed tomography (CT) demonstrated a tumor in the left lateral ventricle during the course of evaluation for mental alteration 12 days before onset, but the tumor was ...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.50.139

    authors: Terakawa Y,Tsuruno T,Ishibashi K,Okada Y,Shimotake K,Murata T

    更新日期:2010-01-01 00:00:00

  • Central tumor necrosis of a large meningioma following acute anemia caused by hysterectomy.

    abstract::A 55-year-old woman, with a one-year history of headache, gait disturbance, and slight aphasia, was transferred to our hospital after head injury. Magnetic resonance (MR) imaging and computed tomography revealed a large meningioma with peripheral edema. However, priority was given to previously planned gynecological s...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.49.424

    authors: Kano T,Kobayashi M,Yoshida K,Kawase T

    更新日期:2009-09-01 00:00:00

  • Familial multiple trichoepithelioma associated with subclavian-pulmonary collateral vessels and cerebral aneurysm--case report.

    abstract::A 63-year-old woman presented with cerebellar infarction caused by occlusion of the right posterior inferior cerebellar artery. She had papules on her face that were identified histologically as multiple trichoepithelioma. Angiography revealed right subclavian-pulmonary collateral vessels and a cerebral aneurysm arisi...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.41.556

    authors: Inatomi Y,Yonehara T,Fujioka S,Urata J,Ohyama K,Uchino M

    更新日期:2001-11-01 00:00:00

  • Low-grade astroblastoma recurring with extensive invasion.

    abstract::A 17-year-old male presented with morning headache and double vision. Neuroimaging revealed a lobulated enhanced mass lesion with a blurred margin and remarkable peritumoral edema, and high uptake of methionine. The gray, soft, well-circumscribed mass was grossly totally resected. Histological examination showed the t...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.46.450

    authors: Kaji M,Takeshima H,Nakazato Y,Kuratsu J

    更新日期:2006-09-01 00:00:00

  • Nestin expression in vascular malformations: a novel marker for proliferative endothelium.

    abstract::Cavernous angiomas (CAs) and arteriovenous malformations (AVMs) sometimes show growth or de novo appearance. Proliferative capacity of the endothelium is evident in such malformations. Intermediate filament nestin is a newly identified marker for proliferative endothelium, which was originally detected in the neuroepi...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.46.111

    authors: Shimizu T,Sugawara K,Tosaka M,Imai H,Hoya K,Takeuchi T,Sasaki T,Saito N

    更新日期:2006-03-01 00:00:00

  • Treatment selection for ruptured aneurysm and outcomes: clipping or coil embolization.

    abstract::The International Subarachnoid Aneurysm Trial has shown that coil embolization achieves a better outcome for aneurysms treatable by either clipping or coil embolization. However, many ruptured aneurysms are hardly treatable by either clipping or coil embolization. Selection of either clipping or coil embolization will...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.51.23

    authors: Tenjin H,Takadou M,Ogawa T,Mandai A,Umebayashi D,Osaka Y,Nakahara Y,Kubo S

    更新日期:2011-01-01 00:00:00

  • An experimental model of cerebral venous hypertension in the rat.

    abstract::Several means of establishing a useful experimental model of cerebral venous hypertension were examined in rats. Retrograde embolization with an autologous blood clot passed through a catheter inserted in an external jugular vein, combined with ligation of the contralateral external jugular vein, was found to produce ...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.29.175

    authors: Kurokawa Y,Hashi K,Okuyama T,Sasaki S

    更新日期:1989-03-01 00:00:00

  • Traumatic carotid-cavernous fistula identified by three-dimensional digital subtraction angiography--technical note.

    abstract::Conventional digital subtraction angiography (DSA) identified a right carotid-cavernous fistula (CCF). Three-dimensional DSA (3D-DSA) was used to evaluate the CCF before treatment. The 3D-DSA images showed the anatomical relationship of the parent artery and the veins, which was difficult to understand on conventional...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.43.369

    authors: Ishida F,Kojima T,Kawaguchi K,Hoshino T,Murao K,Taki W

    更新日期:2003-07-01 00:00:00

  • [The usefulness of lumbar epidural pressure as an index of intracranial pressure].

    abstract::The reliability of lumbar intraspinal epidural pressure (ISEDP) as an index of intracranial pressure was investigated in seven patients with high intracranial pressure following neurosurgery. ISEDP and intracranial epidural pressure (ICEDP) were measured simultaneously, the latter by the conventional method. ISEDP was...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.29.484

    authors: Fujioka S,Kaku M,Hamada J,Yokota A,Ushio Y

    更新日期:1989-06-01 00:00:00

  • Basilar invagination associated with an intercarotid paraganglioma--case report.

    abstract::A 24-year-old female presented with basilar invagination and kyphoscoliosis of the cervical spine associated with a large intercarotid paraganglioma. She had suffered from pharyngeal discomfort from the age of 9 years due to the tumor. The tumor had originated from the right carotid body and extended in the parapharyn...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.37.279

    authors: Ishii N,Sawamura Y,Tada M,Kato T,Abe H

    更新日期:1997-03-01 00:00:00

  • Acute subdural hematoma after intra-arterial thrombolysis for acute ischemic stroke--case report.

    abstract::A 79-year-old man with a cardiac pacemaker for bradycardia fell down and presented with sudden onset of right hemiplegia and aphasia. Initial computed tomography (CT) showed no cerebral infarction but angiography revealed occlusion of the left middle cerebral artery (MCA). Local intra-arterial thrombolysis with tissue...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.45.627

    authors: Meguro T,Higashi H,Nishimoto K

    更新日期:2005-12-01 00:00:00

  • Pineocytoma with massive intratumoral hemorrhage after ventriculoperitoneal shunt--case report.

    abstract::A 58-year-old male suffered a massive intratumoral hemorrhage after placement of a ventriculoperitoneal shunt before treatment for pineocytoma. At admission, he complained of headache, urinary incontinence, gait disturbance, and recent memory disturbance. His neurological examination revealed impaired memory and papil...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.37.911

    authors: Matsumoto K,Imaoka T,Tomita S,Ohmoto T

    更新日期:1997-12-01 00:00:00

  • Ligamentum flavum hematoma in the lumbar spine.

    abstract::A 62-year-old male presented with a rare case of ligamentum flavum hematoma manifesting as low back pain and gait difficulty beginning 1 month before consulting our institute. He had no history of lumbar spine surgery or lumbar puncture. However, he might have suffered forgotten back injury while practicing martial ar...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章,评审

    doi:10.2176/nmc.45.272

    authors: Yamaguchi S,Hida K,Akino M,Seki T,Yano S,Iwasaki Y

    更新日期:2005-05-01 00:00:00

  • Target Selection of Directional Lead in Patients with Parkinson's Disease.

    abstract::Several structures including subthalamic nucleus (STN), the caudal zona incerta (cZI), the prelemniscal radiation (Raprl), and the thalamic ventral intermediate nucleus (Vim) have been reported to be useful for improving symptoms of Parkinson's disease (PD). However, the effect of each target is still unclear. Therefo...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.tn.2020-0210

    authors: Sasagawa A,Enatsu R,Kitagawa M,Mikami T,Nakayama-Kamada C,Kuribara T,Hirano T,Arihara M,Mikuni N

    更新日期:2020-12-15 00:00:00

  • Endoscopic endonasal approach to the middle cranial fossa through the cavernous sinus triangles: anatomical considerations.

    abstract::The lateral limit of endoscopic endonasal surgery has yet to be defined. The aim of this study was to investigate the lateral limit of endoscopic endonasal surgery at the level of the sphenoid sinus. Access from the sphenoid sinus to the middle cranial fossa through the cavernous sinus triangles was evaluated by cadav...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:

    authors: Komatsu F,Oda S,Shimoda M,Imai M,Shigematsu H,Komatsu M,Tschabitscher M,Matsumae M

    更新日期:2014-01-01 00:00:00

  • Neural differentiation and maturation in metastatic medulloblastoma--case report.

    abstract::A 6-year-old boy presented with a cerebellar medulloblastoma. Radical removal of the tumor and postoperative irradiation achieved complete remission. However, a metastatic tumor in the frontal lobe developed 2 years later. Radical removal and postoperative chemotherapy achieved partial remission, but he died of multip...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.35.32

    authors: Kadota Y,Arai H,Sato K

    更新日期:1995-01-01 00:00:00

  • [Immunological function in head-injured patients. Relationship with severity of injury and age].

    abstract::The immunological function of 29 head-injured patients was investigated, with special reference to the relationships between changes in immunity and both severity of head injury and age. The patients were classified according to Glasgow Coma Scale scores (15, 9 to 14, and 3 to 8) and age (under 35, 35 to 65, and over ...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.29.297

    authors: Ikeda J,Kuratsu J,Nonaka N,Matsukado Y,Ushio Y

    更新日期:1989-04-01 00:00:00

  • A biomechanical comparison of three different posterior fixation constructs used for c6-c7 cervical spine immobilization: a finite element study.

    abstract::The intralaminar screw construct has been recently introduced in C6-C7 fixation. The aim of the study is to compare the stability afforded by three different C7 posterior fixation techniques using a three-dimensional finite element model of a C6-C7 cervical spine motion segment. Finite element models representing thre...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.oa.2013-0004

    authors: Hong JT,Qasim M,Espinoza Orías AA,Natarajan RN,An HS

    更新日期:2014-01-01 00:00:00

  • Oxyhemoglobin changes during cognitive rehabilitation after traumatic brain injury using near infrared spectroscopy.

    abstract::To investigate cerebral reactions to cognitive rehabilitation tasks, oxyhemoglobin changes were compared in 9 patients with cognitive impairments after traumatic brain injury (TBI) and 47 healthy controls using functional near infrared spectroscopy (fNIRS) during nine cognitive rehabilitation tasks employed at Nagoya ...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.53.299

    authors: Hibino S,Mase M,Shirataki T,Nagano Y,Fukagawa K,Abe A,Nishide Y,Aizawa A,Iida A,Ogawa T,Abe J,Hatta T,Yamada K,Kabasawa H

    更新日期:2013-01-01 00:00:00

  • Parent artery occlusion for unruptured cerebral aneurysms: the Japanese Registry of Neuroendovascular Therapy (JR-NET) 1 and 2.

    abstract::Parent artery occlusion (PAO) is an alternative to surgical clipping or endovascular endosaccular coil embolization for the management of cerebral aneurysms. Most giant and fusiform aneurysms are not amenable to endosaccular coil embolization due to anatomical considerations, such as a broad-neck. However, majority of...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:

    authors: Ishii A,Miyamoto S,Ito Y,Fujinaka T,Sakai C,Sakai N,Japanese Registry of Neuroendovascular Therapy Investigators.

    更新日期:2014-01-01 00:00:00

  • Comparing accuracy of cerebral aneurysm size measurements from three routine investigations: computed tomography, magnetic resonance imaging, and digital subtraction angiography.

    abstract::Modern imaging technologies, such as computed tomography (CT) angiography, magnetic resonance (MR) angiography, and digital subtraction (DS) angiography are widely used for pretreatment evaluation of cerebral aneurysms, but the relative accuracies of these modalities are unclear. This study compared the measurements o...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.50.893

    authors: Takao H,Murayama Y,Ishibashi T,Saguchi T,Ebara M,Arakawa H,Irie K,Iwasaki K,Umezu M,Abe T

    更新日期:2010-01-01 00:00:00

  • Changes in the level of 7 alpha-hydroxy-3-oxo-4-cholestenoic acid in cerebrospinal fluid after subarachnoid hemorrhage.

    abstract::A high concentration of a type of cholic acid, 7 alpha-hydroxy-3-oxo-4-cholestenoic acid, is observed in the content of chronic subdural hematoma. To investigate the possible causes, the level of this compound was measured in the cerebrospinal fluid of patients who underwent surgery for aneurysmal subarachnoid hemorrh...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.35.294

    authors: Nagata K,Seyama Y,Shimizu T

    更新日期:1995-05-01 00:00:00

  • Thoracic epidural angiolipoma--case report.

    abstract::We report a rare case of thoracic epidural angiolipoma in a 38-year-old female with clinical, radiological, and histological findings including magnetic resonance imaging. Magnetic resonance imaging can provide preoperative diagnosis of spinal angiolipoma, and complete removal can achieve a successful outcome. The pos...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章,评审

    doi:10.2176/nmc.33.316

    authors: Shibata Y,Sugimoto K,Matsuki T,Nose T

    更新日期:1993-05-01 00:00:00

  • Expression of WT1 protein and correlation with cellular proliferation in glial tumors.

    abstract::The expression of Wilms' tumor gene WT1 protein was investigated immunohistochemically in 73 glial tumors, including 60 astrocytic tumors, eight oligodendroglial tumors, and five ependymal tumors. WT1 protein was detected in 70 of the 73 glial tumors (95.9%) examined. Almost all glioblastomas, anaplastic astrocytomas,...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.47.165

    authors: Hashiba T,Izumoto S,Kagawa N,Suzuki T,Hashimoto N,Maruno M,Yoshimine T

    更新日期:2007-04-01 00:00:00

  • Simulation of clipping position for cerebral aneurysms using three-dimensional computed tomography angiography.

    abstract::A novel method for the simulation of the clipping position for cerebral aneurysms based on three-dimensional computed tomography (3D CT) angiography was evaluated. Rotating the regional 3D CT angiography images including the aneurysm provided the virtual intraoperative views of 36 cerebral aneurysms that were eligible...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.44.6

    authors: Futami K,Nakada M,Iwato M,Kita D,Miyamori T,Yamashita J

    更新日期:2004-01-01 00:00:00

  • Spontaneous subperiosteal hematoma of the orbit--case report.

    abstract::A 62-year-old female was admitted with complaints of sudden proptosis of the left eye and severe left orbital pain without history of trauma or previous illness. Computed tomography and magnetic resonance imaging demonstrated a biconvex extraconal hematoma in the upper part of the left orbit. Surgical exploration of t...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.34.27

    authors: Matsumoto S,Yamamoto T,Ban S,Motozaki T,Sato S,Shingu T,Yoshida S,Tsuiki H

    更新日期:1994-01-01 00:00:00

  • Aneurysm of the distal anterior inferior cerebellar artery--case report.

    abstract::A 38-year-old female presented with vertigo, right hearing disturbance, and slight headache which were treated medically. However, she suddenly developed severe headache with vomiting and vertigo. Computed tomography revealed subarachnoid hemorrhage, and right vertebral angiography disclosed a rare aneurysm at the dis...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.35.587

    authors: Yokoyama S,Kadota K,Asakura T,Kawazoe K

    更新日期:1995-08-01 00:00:00

  • Surgical treatment for intractable epilepsy caused by cavernous angioma in the temporal lobe of the dominant hemisphere--three case reports.

    abstract::The surgical treatment modality for intractable epilepsy with cavernous angioma in the dominant hemisphere is still unclear. Three patients with medically intractable seizures associated with cavernous angioma in the dominant hemispheric temporal lobe underwent tailored resection based on magnetic resonance (MR) imagi...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.40.439

    authors: Arita K,Kurisu K,Iida K,Hanaya R,Sugiyama K,Akimitsu T,Takeshita S,Kiura Y

    更新日期:2000-08-01 00:00:00