Abstract：
Objective:Electrooculography (EOG) records eyeball movements as changes in the potential difference between the negatively charged retina and the positively charged cornea. We aimed to investigate whether reliable EOG waveforms can be evoked by electrical stimulation of the oculomotor and abducens nerves during skull base surgery. Methods:We retrospectively reviewed the records of 18 patients who had undergone a skull base tumor surgery using EOG (11 craniotomies and seven endonasal endoscopic surgeries). Stimulation was performed at 5 Hz with a stimulus duration of 200 μs and an intensity of 0.1-5 mA using a concentric bipolar probe. Recording electrodes were placed on the upper (active) and lower (reference) eyelids, and on the outer corners of both eyes; the active electrode was placed on the contralateral side. Results:Reproducibly triggered EOG waveforms were observed in all cases. Electrical stimulation of cranial nerves (CNs) III and VI elicited positive waveforms and negative waveforms, respectively, in the horizontal recording. The median latencies were 3.1 and 0.5 ms for craniotomies and endonasal endoscopic surgeries, respectively (p=0.007). Additionally, the median amplitudes were 33.7 and 46.4 μV for craniotomies and endonasal endoscopic surgeries, respectively (p=0.40). Conclusion:This study showed reliably triggered EOG waveforms with stimulation of CNs III and VI during skull base surgery. The latency was different according to the point of stimulation and thus predictable. As EOG is noninvasive and relatively easy to perform, it can be used to identify the ocular motor nerves during surgeries as an alternative of electromyography.
journal_name
J Korean Neurosurg Socjournal_title
Journal of Korean Neurosurgical Societyauthors
Jeong HN,Ahn SI,Na M,Yoo J,Kim W,Jung IH,Kang S,Kim SM,Shin HY,Chang JH,Kim EHdoi
10.3340/jkns.2020.0179subject
Has Abstractpub_date
2020-12-23 00:00:00eissn
2005-3711issn
1598-7876pii
jkns.2020.0179pub_type
杂志文章abstract：OBJECTIVE:We retrospectively evaluated the survival outcome of patients with brain metastasis from hepatocellular carcinoma (HCC). METHODS:Between 1991 and 2007, a total of 20 patients were diagnosed as having brain metastasis from HCC. The mean age of the patients was 55 +/- 13 years, and 17 (85.0%) were men. Sevente...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2010.47.5.325
更新日期：2010-05-01 00:00:00
abstract：:Alveolar soft part sarcoma (ASPS) with skull and brain metastases is extremely rare. A 53-year-old patient diagnosed as skull metastasis of ASPS visited our clinic complaining of an outgrowing scalp mass in spite of radiation therapy. Past medical history revealed that the patient had been diagnosed and treated for AS...
journal_title：Journal of Korean Neurosurgical Society
pub_type：
doi：10.3340/jkns.2012.52.1.55
更新日期：2012-07-01 00:00:00
abstract：:Carotid occlusion is an inevitable therapeutic modality for the treatment of complex aneurysms such as giant, traumatic, and intracavernous aneurysms. Late complications of carotid occlusion include 'de novo' aneurysm formation at a distant site because of hemodynamic changes in the circle of Willis. We report a case ...
journal_title：Journal of Korean Neurosurgical Society
pub_type：
doi：10.3340/jkns.2009.45.4.236
更新日期：2009-04-01 00:00:00
abstract：OBJECTIVE:The purpose of this study is to evaluate neuroprotective effect of sacral neuromodulation in rat spinal cord injury (SCI) model in the histological and functional aspects. METHODS:Twenty-one female Sprague Dawley rats were randomly divided into 3 groups : the normal control group (CTL, n=7), the SCI with sha...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2012.52.6.509
更新日期：2012-12-01 00:00:00
abstract：OBJECTIVE:The objective of study is to evaluate the incidence of leptomeningeal carcinomatosis (LMC) in breast cancer patients with parenchymal brain metastases (PBM) and clinical risk factors for the development of LMC. METHODS:We retrospectively analyzed 27 patients who had undergone surgical resection (SR) and 156 ...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2012.52.3.193
更新日期：2012-09-01 00:00:00
abstract：:Intracranial granulocytic sarcomas are rare tumors, which are composed of immature granulocytic cells. Although it has been well known that these tumors are associated with acute myeloblastic leukemia (AML), they have been almost always related to bone marrow relapse. However, isolated recurrence of granulocytic sarco...
journal_title：Journal of Korean Neurosurgical Society
pub_type：
doi：10.3340/jkns.2010.47.5.385
更新日期：2010-05-01 00:00:00
abstract：OBJECTIVE:Penumbra ACE68 reperfusion catheter is a new large bore aspiration catheter used for reperfusion of large vessel occlusion. The objective of this study was to investigate the efficacy of this catheter in comparison to that of previous Penumbra catheters in patients with acute ischemic stroke related to intern...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2019.0108
更新日期：2019-09-01 00:00:00
abstract：OBJECTIVE:Outcome of gamma knife radiosurgery (GKS) in the consecutive 100 cases with cerebral arteriovenous malformations (AVMs) was analyzed. METHODS:Data from initial 100 patients treated with GKS in the authors' institute were reviewed retrospectively. Spetzler-Martin grade at diagnosis were I in 18 patients, II i...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2008.43.6.265
更新日期：2008-06-01 00:00:00
abstract：:The demineralized bone matrix (DBM) as the bone graft material to increase the fusion rate was widely used in spinal fusion. The current study aimed to compare the fusion rate of DBM to the fusion rate of autograft in lumbar spine fusion via meta-analysis of published literature. After systematic search, comparative s...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2019.0185
更新日期：2020-11-01 00:00:00
abstract：OBJECTIVE:Preoperative parameters including the T1 slope (T1S) and C2-C7 sagittal vertical axis (SVA) have been recognized as predictors of kyphosis after laminoplasty, which is accompanied by posterior neck muscle damage. The importance of preoperative parameters has been under-estimated in anterior cervical discectom...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2017.0404.001
更新日期：2017-09-01 00:00:00
abstract：:[This corrects the article on p. 338 in vol. 47, PMID: 20539792.]. ...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章,已发布勘误
doi：10.3340/jkns.2010.47.6.480
更新日期：2010-06-01 00:00:00
abstract：:Parkinsonism secondary to intracranial mass lesions usually results from compression or distortion of the basal ganglia. Secondary parkinsonism due to midbrain infiltration or compression is rare and generally associated with other neurologic signs caused by pyramidal tract and/or cranial nerve involvement. We report ...
journal_title：Journal of Korean Neurosurgical Society
pub_type：
doi：10.3340/jkns.2012.51.3.144
更新日期：2012-03-01 00:00:00
abstract：:Injury to the vertebral artery during anterior cervical discectomy is rare but potentially fatal. We report a case of cerebellar infarction after endovascular embolization for iatrogenic vertebral artery injury at C5-C6 during an anterior cervical discectomy and fusion. A 61-year-old man had an intraoperative injury o...
journal_title：Journal of Korean Neurosurgical Society
pub_type：
doi：10.3340/jkns.2011.50.6.520
更新日期：2011-12-01 00:00:00
abstract：:We experienced a rare case of solitary syphilitic osteomyelitis of the skull without any other clinical signs or symptoms of syphilis. A 20-year-old man was referred due to intermittent headache and mild tenderness at the right parietal area of the skull with a palpable coin-sized lesion of softened cortical bone. On ...
journal_title：Journal of Korean Neurosurgical Society
pub_type：
doi：10.3340/jkns.2010.48.1.85
更新日期：2010-07-01 00:00:00
abstract：OBJECTIVE:The objectives of this study was to determine the incidence and outcomes of procedural rupture (PR) during coil embolization of unruptured intracranial aneurysm (UIA) and to explore potential risk factors. METHODS:This retrospective study evaluated 1038 patients treated with coil embolization between January...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2016.59.1.6
更新日期：2016-01-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to evaluate the efficacy of endovascular therapy as a primary treatment for spinal dural arteriovenous fistula (DAVF). METHODS:The authors reviewed 18 patients with spinal DAVFs for whom endovascular therapy was considered as an initial treatment at a single institute between 1993 a...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2008.44.6.364
更新日期：2008-12-01 00:00:00
abstract：OBJECTIVE:Preoperative prediction of the arachnoid membrane descent in pituitary surgery is useful for achieving gross total removal and avoiding cerebrospinal fluid leakage resulting from tearing of the arachnoid membrane in the chiasmatic cistern. In this study, we analyzed the patterns of arachnoid membrane descent ...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2020.0140
更新日期：2021-01-01 00:00:00
abstract：:Chronic subdural hematoma (SDH) is a well-known disease entity and is traditionally managed with surgery. However, when associated with spontaneous intracranial hypotension (SIH), the treatment strategy ought to be modified, as classical treatment could lead to unwanted consequences. A 59-year-old man presented with a...
journal_title：Journal of Korean Neurosurgical Society
pub_type：
doi：10.3340/jkns.2016.59.1.69
更新日期：2016-01-01 00:00:00
abstract：:Mild traumatic brain injury is common in elderly patients, many of whom are on anticoagulant. The common practice is to discharge these patients from the emergency room if the computed tomography (CT) of the brain is normal. However, a very small proportion of these patients may develop a life threatening intracranial...
journal_title：Journal of Korean Neurosurgical Society
pub_type：
doi：10.3340/jkns.2014.55.1.51
更新日期：2014-01-01 00:00:00
abstract：OBJECTIVE:To evaluate the relationship between postoperative increase in intervertebral disc space height (IVH) and posterior axial neck in cases of degenerative cervical disease treated with anterior cervical discectomy and fusion (ACDF). METHODS:A total of 155 patients who underwent ACDF with more than 1 year follow...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2014.55.6.343
更新日期：2014-06-01 00:00:00
abstract：OBJECTIVE:Because the anatomical structure of the brachial plexus is very complex, surgical treatment of tumors in this region is challenging. Therefore, a lot of clinical and surgical experience is required for successful treatment; however, many neurosurgeons have difficulty accumulating this experience owing to the ...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2018.0045
更新日期：2018-09-01 00:00:00
abstract：:The authors present a case of multiple intracranial calcifications after the procedure of external ventricular drain placement in a 50-year-old man with pericallosal artery aneurysm. We believe that calcifications formed dust that had fallen into the track during the external ventricular drain procedure. The clinical ...
journal_title：Journal of Korean Neurosurgical Society
pub_type：
doi：10.3340/jkns.2010.47.2.158
更新日期：2010-02-01 00:00:00
abstract：OBJECTIVE:Metaplastic meningioma is an extremely rare subtype of World Health Organization (WHO) grade I meningioma. It has distinctive histological subtypes according to its own mesenchymal components. Owing to its scarcity, clinical or radiological features of a metaplastic meningioma are poorly described. METHODS:B...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2020.0151
更新日期：2020-09-01 00:00:00
abstract：Objective:Morphometric data for the lumbar posterior longitudinal ligament (PLL) was investigated to identify whether there is a difference in the morphometry of the PLL of the lumbar spine at each level with respect to the pattern of intervertebral disc displacement. Methods:In 14 formalin-fixed adult cadavers (12 ma...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2017.0257
更新日期：2018-01-01 00:00:00
abstract：:Spinal epidural hematoma is a rare complication associated with pain control procedures such as facet block, acupuncture, epidural injection, etc. Although it is an uncommon cause of acute myelopathy, and it may require surgical evacuation. We report four patients with epidural hematoma developed after pain control pr...
journal_title：Journal of Korean Neurosurgical Society
pub_type：
doi：10.3340/jkns.2010.48.3.281
更新日期：2010-09-01 00:00:00
abstract：OBJECTIVE:We attempted to compare the incidence of pyogenic spondylitis (PS) and tuberculous spondylitis (TS) between 2007 and 2016. Furthermore, we investigated the patients who underwent surgery in 2016 compared to that in 2007. METHODS:We used a nationwide database managed by the Korean National Health Insurance Se...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2020.0013
更新日期：2020-11-01 00:00:00
abstract：:Among the spinal disorders, the treatment approach for spinal deformities has been discussed least among department of neurosurgery. But nowadays, more and more neurosurgeons are interested in spinal deformities as well as complex spinal disorders and are doing not a few surgeries for these kinds of disease. Neverthel...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2018.0150
更新日期：2018-11-01 00:00:00
abstract：OBJECTIVE:On the basis of preoperative computed tomography (CT) scans, we studied the change of the size of anterior primary division (APD) of the L5 spinal root in the presence of foraminal/extraforaminal entrapment of the L5 spinal root. METHODS:Two independent radiologists retrospectively reviewed the preoperative ...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2010.47.1.1
更新日期：2010-01-01 00:00:00
abstract：OBJECTIVE:Several surgical procedures have been reported for the treatment of chronic subdural hematoma (CSDH). We compared the results of treatments for CSDH obtained from one burr-hole craniostomy with closed system drainage with or without irrigation, two burr-hole craniostomy with closed system drainage with irriga...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2009.46.3.210
更新日期：2009-09-01 00:00:00
abstract：OBJECTIVE:The objectives of the present study were to characterize the natural course of initially non-operated traumatic acute subdural hematoma (ASDH) and to identify the risk factors of hematoma progression. METHODS:Retrospective analysis was performed using sequential computed tomography (CT) images maintained in ...
journal_title：Journal of Korean Neurosurgical Society
pub_type： 杂志文章
doi：10.3340/jkns.2013.54.3.211
更新日期：2013-09-01 00:00:00
