Endovascular Treatments Performed Collaboratively by the Society of Korean Endovascular Neurosurgeons Members : A Nationwide Multicenter Survey.
Conclusion: The SKEN members have been responsible for the major role of endovascular treatments in South Korea for the recent 5 years. This was achieved through the perseverance of senior members who started out in the midst of hardship, the establishment of standards for the training/certification of endovascular neurosurgery, and the enthusiasm of current SKEN members who followed. To provide better treatment to patients, we will have to make further progress in SKEN. PMID: 31288507 [PubMed - as supplied by publisher] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - July 12, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Intraoperative Neurophysiological Monitoring during Microvascular Decompression Surgery for Hemifacial Spasm.
Authors: Park SK, Joo BE, Park K Abstract Hemifacial spasm (HFS) is due to the vascular compression of the facial nerve at its root exit zone (REZ). Microvascular decompression (MVD) of the facial nerve near the REZ is an effective treatment for HFS. In MVD for HFS, intraoperative neurophysiological monitoring (INM) has two purposes. The first purpose is to prevent injury to neural structures such as the vestibulocochlear nerve and facial nerve during MVD surgery, which is possible through INM of brainstem auditory evoked potential and facial nerve electromyography (EMG). The second purpose is the unique feature of...
Source: Journal of Korean Neurosurgical Society - July 12, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Three Dimensional Measurement of Ideal Trajectory of Pedicle Screws of Subaxial Cervical Spine Using the Algorithm Could Be Applied for Robotic Screw Insertion.
CONCLUSION: The absolute values of transverse and sagittal angle in our study were not same but the trend of changes were similar to previous studies. Because we know 3D address of all points constituting cortical shell of cervical vertebrae. we can easily reconstruct 3D model and manage it freely using computer program. More creative measurement of morphological characteristics could be carried out than direct inspection of raw bone. Furthermore this concept of measurement could be used for the computing program of automated robotic screw insertion. PMID: 31290294 [PubMed] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - July 12, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Obtaining Informed Consent Using Patient Specific 3D Printing Cerebral Aneurysm Model.
CONCLUSION: The 3D printed models were accurate and useful for understanding the intracranial aneurysm structure. In this study, 3D printed intracranial aneurysm models were proven to be helpful in preoperative patient consultation. PMID: 31290295 [PubMed] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - July 12, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Efficacy of Combining Proximal Balloon Guiding Catheter and Distal Access Catheter in Thrombectomy with Stent Retriever for Anterior Circulation Ischemic Stroke.
Authors: Kim SH, Choi JH, Kang MJ, Cha JK, Kim DH, Nah HW, Park HS, Kim SH, Huh JT Abstract OBJECTIVE: We evaluated efficacy of combining proximal balloon guiding catheter (antegrade flow arrest) and distal access catheter (aspiration at the site of occlusion) in thrombectomy for anterior circulation ischemic stroke. METHODS: We retrospectively analyzed 116 patients who underwent mechanical thrombectomy with stent retriever. The patients were divided by the techniques adopted, the combined technique (proximal balloon guiding catheter and large bore distal access catheter) group (n=57, 49.1%) and the conventiona...
Source: Journal of Korean Neurosurgical Society - July 12, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Machine Learning Model to Predict Osteoporotic Spine with Hounsfield Units on Lumbar Computed Tomography.
CONCLUSION: This study is a simple machine learning model applicable in the spine research field. The machine learning model can predict the T-score and osteoporotic vertebrae solely by measuring the HU of conventional CT, and this would help spine surgeons not to under-estimate the osteoporotic spine preoperatively. If applied to a bigger data set, we believe the predictive accuracy of our model will further increase. We propose that machine learning is an important modality of the medical research field. PMID: 31290297 [PubMed] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - July 12, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Risk Factors of Allogenous Bone Graft Collapse in Two-Level Anterior Cervical Discectomy and Fusion.
CONCLUSION: We experienced a higher frequency rate of collapse than subsidence in ACDF using an allograft. Of the various preoperative factors, intra-operative distraction was the most predictable factor of the allograft collapse. This was especially true when the intraoperative distraction was more than 37%, in which case the occurrence of graft collapse increased 4.6 times. We also found that instrument failure occurs only after the allograft collapse. PMID: 31290298 [PubMed] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - July 12, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Erratum to "A Primer on Magnetic Resonance-Guided Laser Interstitial Thermal Therapy for Medically Refractory Epilepsy" by Lee EJ, et al. (J Korean Neurosurg Soc 62 : 353-360, 2019).
Erratum to "A Primer on Magnetic Resonance-Guided Laser Interstitial Thermal Therapy for Medically Refractory Epilepsy" by Lee EJ, et al. (J Korean Neurosurg Soc 62 : 353-360, 2019). J Korean Neurosurg Soc. 2019 Jul;62(4):492 Authors: PMID: 31290299 [PubMed - in process] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - July 12, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Quantitative Feasibility Evaluation of 11C-Methionine Positron Emission Tomography Images in Gamma Knife Radiosurgery : Phantom-Based Study and Clinical Application.
Conclusion: The geometric accuracy of the diagnostic MET-PET co-registered with stereotactic MR in LGP is acceptable on phantom-based study. However, the MET-PET images could the limitations in providing exact stereotactic information in clinical study. PMID: 31154754 [PubMed - as supplied by publisher] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - June 5, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Factors Related to Successful Energy Transmission of Focused Ultrasound through a Skull : A Study in Human Cadavers and Its Comparison with Clinical Experiences.
This study was undertaken to identify skull characteristics that contribute to optimal ultrasonic energy transmission for MRgFUS procedures. Methods: For ex vivo skull experiments, various acoustic fields were measured under different conditions, using five non-embalmed cadaver skulls. For clinical skull analyses, brain computed tomography data of 46 patients who underwent MRgFUS ablations (18 unilateral thalamotomy, nine unilateral pallidotomy, and 19 bilateral capsulotomy) were retrospectively reviewed. Patients' skull factors and sonication parameters were comparatively analyzed with respect to the cadaveric skulls....
Source: Journal of Korean Neurosurgical Society - June 1, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Newly-Diagnosed, Histologically-Confirmed Central Nervous System Tumours in a Regional Hospital in Hong Kong : An Epidemiological Study of a 21-Year Period.
Conclusion: This retrospective study of CNS tumour epidemiology revealed increasing trends in the incidences of several common CNS tumour histologies in Hong Kong, which agrees with the findings in large-scale studies in Korea and the United States. It is important for different geographic locations to establish their own CNS tumour registry with well-defined and structured data collection and analysis system to meet the international standards. PMID: 31142102 [PubMed - as supplied by publisher] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - June 1, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Preface : Invited Issue Editor, Professor Byung-Kyu Cho, and the Pediatric Epilepsy Surgery.
Authors: Kim SK, Wang KC PMID: 31085951 [PubMed] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Normal and Disordered Formation of the Cerebral Cortex : Normal Embryology, Related Molecules, Types of Migration, Migration Disorders.
Authors: Lee JY Abstract The expansion and folding of the cerebral cortex occur during brain development and are critical factors that influence cognitive ability and sensorimotor skills. The disruption of cortical growth and folding may cause neurological disorders, resulting in severe intellectual disability and intractable epilepsy in humans. Therefore, understanding the mechanism that regulates cortical growth and folding will be crucial in deciphering the key steps of brain development and finding new therapeutic targets for the congenital anomalies of the cerebral cortex. This review will start with a brief i...
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Mechanistic Target of Rapamycin Pathway in Epileptic Disorders.
Authors: Kim JK, Lee JH Abstract The mechanistic target of rapamycin (mTOR) pathway coordinates the metabolic activity of eukaryotic cells through environmental signals, including nutrients, energy, growth factors, and oxygen. In the nervous system, the mTOR pathway regulates fundamental biological processes associated with neural development and neurodegeneration. Intriguingly, genes that constitute the mTOR pathway have been found to be germline and somatic mutation from patients with various epileptic disorders. Hyperactivation of the mTOR pathway due to said mutations has garnered increasing attention as culpri...
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Pathological Classification of Focal Cortical Dysplasia (FCD) : Personal Comments for Well Understanding FCD Classification.
Authors: Kim SH, Choi J Abstract In 2011, the International League against Epilepsy (ILAE) proposed a first international consensus of the classification of focal cortical dysplasia (FCD). This FCD classification had been widely used in worldwide. In this review paper, the authors would like to give helpful comments for better understanding of the current FCD classification. Especially, the basic concepts of FCD type I, such as "radial", "tangential" and "microcolumn" will be discussed with figures. In addition, the limitations, genetic progress and prospect of FCD will be suggested. ...
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Antiepileptic Drugs in Children : Current Concept.
This article will delineate the general principles for selecting, introducing, and discontinuing AEDs and outline guidelines for monitoring adverse effects. In general, AED therapy following a first unprovoked seizure in children is not recommended. However, treatment should be considered after a second seizure. In children and adolescents, if they are seizure-free for at least 2 years, attempts to withdraw medication/s should be made, taking into account the risks vs. benefits for the individual patient. The decision on when and what AED to use should be tailored according to the patient. For optimal treatment, the select...
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Stereoelectroencephalography in Pediatric Epilepsy Surgery.
Authors: Tomlinson SB, Buch VP, Armstrong D, Kennedy BC Abstract Stereoelectroencephalography (SEEG) is an invasive technique used during the surgical management of medically refractory epilepsy. The utility of SEEG rests in its ability to survey the three-dimensional organization of the epileptogenic zone as well as nearby eloquent cortices. Once concentrated to specialized centers in Europe and Canada, the SEEG methodology has gained worldwide popularity due to its favorable morbidity profile, superior coverage of deep structures, and ability to perform multilobar explorations without the need for craniotomy. Thi...
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Clinical Pearls and Advances in Molecular Researches of Epilepsy-Associated Tumors.
Authors: Phi JH, Kim SK Abstract Brain tumors are the second most common type of structural brain lesion that causes chronic epilepsy. Patients with low-grade brain tumors often experience chronic drug-resistant epilepsy starting in childhood, which led to the concept of long-term epilepsy-associated tumors (LEATs). Dysembryoplastic neuroepithelial tumor and ganglioglioma are representative LEATs and are characterized by young age of onset, frequent temporal lobe location, benign tumor biology, and chronic epilepsy. Although highly relevant in clinical epileptology, the concept of LEATs has been criticized in the n...
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

The Surgical and Cognitive Outcomes of Focal Cortical Dysplasia.
Authors: Choi SA, Kim KJ Abstract Focal cortical dysplasia (FCD) is the major cause of intractable focal epilepsy in childhood leading to epilepsy surgery. The overall seizure freedom after surgery ranges between 50-75% at 2 years after surgery and the long-term seizure freedom remain relatively stable. Seizure outcome after surgery depends on a various factors such as pathologic etiologies, extent of lesion, and types of surgery. Therefore, seizure outcome after surgery for FCD should be analyzed carefully considering cohorts' characteristics. Studies of pediatric epilepsy surgery emphasize the early surgical inte...
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Epilepsy Surgery in Children versus Adults.
Authors: Lee KH, Lee YJ, Seo JH, Baumgartner JE, Westerveld M Abstract Epilepsy is one of the most common chronic neurological disorder affecting 6-7 per 1000 worldwide. Nearly one-third of patients with newly diagnosed epilepsy continue to have recurrent seizures despite adequate trial of more than two anti-seizure drugs : drug-resistant epilepsy (DRE). Children with DRE often experience cognitive and psychosocial co-morbidities requiring more urgent and aggressive treatment than adults. Epilepsy surgery can result in seizure-freedom in approximately two-third of children with improvement in cognitive development ...
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

From Resection to Disconnection for Seizure Control in Pediatric Epilepsy Children.
Authors: Hwang JK, Kim DS Abstract Epilepsy surgery revealed dramatically improved seizure outcomes over medical therapy in drug-resistant epilepsy patients. Children with epilepsy, however, have multiple epileptic focuses which require multilobar resection for better seizure outcome. Multilobar resection has not only the several severe surgical complications, such as hydrocephalus and shunt-related craniosynostosis, due to intracranial volume reduction. Isolation method (disconnection surgery) was progressively studied over epileptic focus removal (resective surgery) for seizure control. This concept was first int...
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

The Present and Future of Vagus Nerve Stimulation.
In conclusion, VNS has been demonstrated to be beneficial and effective in the treatment of epilepsy and various diseases, and more development is expected in the future. PMID: 31085961 [PubMed] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

A Primer on Magnetic Resonance-Guided Laser Interstitial Thermal Therapy for Medically Refractory Epilepsy.
Authors: Lee EJ, Kalia SK, Hong SH Abstract Epilepsy surgery that eliminates the epileptogenic focus or disconnects the epileptic network has the potential to significantly improve seizure control in patients with medically intractable epilepsy. Magnetic resonance-guided laser interstitial thermal therapy (MRgLITT) has been an established option for epilepsy surgery since the US Food and Drug Administration cleared the use of MRgLITT in neurosurgery in 2007. MRgLITT is an ablative stereotactic procedure utilizing heat that is converted from laser energy, and the temperature of the tissue is monitored in real-time b...
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Epilepsy Surgery in 2019 : A Time to Change.
Authors: Phi JH, Cho BK Abstract Epilepsy has been known to humankind since antiquity. The surgical treatment of epilepsy began in the early days of neurosurgery and has developed greatly. Many surgical procedures have stood the test of time. However, clinicians treating epilepsy patients are now witnessing a huge tide of change. In 2017, the classification system for seizure and epilepsy types was revised nearly 36 years after the previous scheme was released. The actual difference between these systems may not be large, but there have been many conceptual changes, and clinicians must bid farewell to old terminolo...
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Erratum to "Endoscopic Spine Surgery" by Choi G, et al. (J Korean Neurosurg Soc 60 : 485-497, 2017).
Erratum to "Endoscopic Spine Surgery" by Choi G, et al. (J Korean Neurosurg Soc 60 : 485-497, 2017). J Korean Neurosurg Soc. 2019 May;62(3):366 Authors: PMID: 31085964 [PubMed - in process] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Antibiotic-Induced Increase in Inflammatory Markers in Cured Infectious Spondylitis : Two Case Reports.
Authors: Eom KS Abstract Conservative therapy with appropriate antibiotics is essential for most patients with infectious spondylitis. Although most antibiotics do not cause problems if it used properly and serious side effects are rare, side effects can occur with any class of drugs and adverse reactions of antibiotics can range from mild allergic reactions to serious and fulminant adverse events. These side effects are also extremely variable from patient to patient and from antibiotic to antibiotic. A side effect of antibiotics may paradoxically increase inflammatory marker levels. Here, the author presents two ...
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Biomechanical Properties of the Cranial Dura Mater with Puncture Defects : An In Vitro Study.
Conclusion: This biomechanical study may contribute to the future development of artificial dura mater substitutes and medical needles that have a lower negative impact on the biomechanical properties of dura mater. PMID: 31089067 [PubMed - as supplied by publisher] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - May 16, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Outcomes of Non-Operative Management for Pseudarthrosis after Pedicle Subtraction Osteotomies at Minimum 5 Years Follow-Up.
This study reports radiographic and clinical outcomes of non-operative management for post-PSO pseudarthrosis at a minimum 5 years post-detection. Methods: Nineteen consecutive patients with implant breakage indicating probable pseudarthrosis after PSO surgery (13 women/ six men; mean age at surgery, 58 years) without severe pain and disability were treated with non-operative management (mean follow-up, 5.8 years; range, 5-10 years). Non-operative management included medication, intermittent brace wearing and avoidance of excessive back strain. Radiographic and clinical outcomes analysis was performed. Results: Sag...
Source: Journal of Korean Neurosurgical Society - May 15, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Surgical Outcomes According to Dekyphosis in Patients with Ossification of the Posterior Longitudinal Ligament in the Thoracic Spine.
Authors: Kim SY, Hyun SJ, Kim KJ, Jahng TA Abstract Objective: Ossification of posterior longitudinal ligament (OPLL) in the thoracic spine may cause chronic compressive myelopathy that is usually progressive, and unfavorable by conservative treatment. Although surgical intervention is often needed, the standard surgical method has not been established. Recently, it has been reported that posterior decompression with dekyphosis is effective surgical technique for favorable clinical outcome. The purpose of this study was to evaluate the surgical outcomes in patients with thoracic OPLL according to dekyphosis procedu...
Source: Journal of Korean Neurosurgical Society - May 15, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Evaluation of Dimensions of Kambin's Triangle to Calculate Maximum Permissible Cannula Diameter for Percutaneous Endoscopic Lumbar Discectomy : A 3-Dimensional Magnetic Resonance Imaging Based Study.
Conclusion: The largest mean diameter of endoscopic cannula passable through "bony" Kambin's triangle was distinctively smaller than the largest mean diameter of endoscopic cannula passable through "neural" Kambin's triangle at all levels. Although proximity of exiting root to the facet joint is always taken into consideration before PELD procedure, our 3D MRI based anatomical study is the first to provide actual maximum cannula dimensions permissible in this region. PMID: 31079448 [PubMed - as supplied by publisher] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - May 15, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Clinical Outcome of Patients Over 90 Years of Age Treated for Chronic Subdural Hematoma.
Conclusion: In this study, we demonstrate that surgery for very old patients above 90 years of age affected by CSDH is safe and allows complete recovery. Comparing two groups of patients above and under 90 years old we found that complication rate and recovery were similar in both groups. PMID: 31064037 [PubMed - as supplied by publisher] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - May 9, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Spontaneously Regressed Rathke's Cleft Cyst.
We report two rare cases of spontaneously regressed Rathke's cleft cyst (RCC). A 52-year-old woman presented with headache. A pituitary hormone study was normal. Brain magnetic resonance imaging (MRI) showed a 0.45-cm3 cystic sellar lesion. The cyst was hyperintense on T1-weighed imaging and hypointense on T2-weighted imaging without rim enhancement, comparable to a RCC. Six months later, brain MRI showed no change in the cyst size. Without any medical treatments, brain MRI 1 year later revealed a spontaneous decrease in cyst volume to 0.05 cm3. A 34-year-old woman presented with headache and galactorrhea lasting 1 week. A...
Source: Journal of Korean Neurosurgical Society - May 9, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Stereotactic Radiosurgery for Dural Arteriovenous Fistulas Involving the Transverse-Sigmoid Sinus : A Single Center Experience and Review of the Literatures.
Conclusion: SRS with or without embolization is a safe and effective treatment to relieve symptoms and obliterate DAVFs on the transverse-sigmoid sinus. PMID: 31064039 [PubMed - as supplied by publisher] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - May 9, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Trends in the Incidence and Treatment of Cerebrovascular Diseases in Korea : Part II. Cerebral Infarction, Cerebral Arterial Stenosis, and Moyamoya Disease.
Conclusion: Although the incidence of CI showed a declining trend over a 9-year period, the number and proportion of patients treated for CI increased. Meanwhile, the incidence of CASTN and the number of patients treated for CASTN have demonstrated increasing trends since 2008. On the other hand, the number of patients diagnosed with pediatric MMD decreased, despite no significant change in the incidence. In contrast, the number of patients and the incidence of adult MMD increased. These trends reflect changes in the population structure, gains in the accessibility of imaging examinations, and the development of endovascul...
Source: Journal of Korean Neurosurgical Society - May 9, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Trends in the Incidence and Treatment of Cerebrovascular Diseases in Korea : Part I. Intracranial Aneurysm, Intracerebral Hemorrhage, and Arteriovenous Malformation.
Conclusion: In Korea, age-related cerebral vascular diseases, such as RIA, ICH, and RAVM, demonstrated a declining trend in agestandardized incidence; meanwhile, UIA and UAVM demonstrated an increased trend in both crude incidence and age-standardized incidence for 9 years. The increase in the elderly population, management of hypertension, and development of diagnostic and endovascular techniques appear to have influenced this trend. PMID: 31064041 [PubMed - as supplied by publisher] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - May 9, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

The Effects of Balloon-Guide Catheters on Outcomes after Mechanical Thrombectomy in Acute Ischemic Strokes : A Meta-Analysis.
Conclusion: Our meta-analysis demonstrates that BGC enhance recanalization rates. However, BGC use did not decrease distal emboli after mechanical thrombectomies. This should be interpreted with caution due to possible publication bias and heterogeneity. Additional meta-analyses based on individual patient data are needed to clarify the role of BGC in mechanical thrombectomies. PMID: 31064042 [PubMed - as supplied by publisher] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - May 9, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Risk Factors and Preoperative Risk Scoring System for Shunt-Dependent Hydrocephalus Following Aneurysmal Subarachnoid Hemorrhage.
Conclusion: Our results suggest that the herein-described AFA score is a useful tool for predicting SdHCP before aneurysm obliteration. Prospective validation is needed. PMID: 31064043 [PubMed - as supplied by publisher] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - May 9, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Correction of Spondylolisthesis by Lateral Lumbar Interbody Fusion Compared with Transforaminal Lumbar Interbody Fusion at L4-5.
Authors: Ko MJ, Park SW, Kim YB Abstract Objective: In an aging society, the number of patients with symptomatic degenerative spondylolisthesis (DS) is increasing and there is an emerging need for fusion surgery. However, few studies have compared transforaminal lumbar interbody fusion (TLIF) and lateral lumbar interbody fusion (LLIF) for the treatment of patients with DS. The purpose of this study was to investigate the clinical and radiological outcomes between TLIF and LLIF in DS. Methods: We enrolled patients with symptomatic DS at L4-5 who underwent TLIF with open pedicle screw fixation (TLIF group, n=41) ...
Source: Journal of Korean Neurosurgical Society - May 9, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Effect of Cage in Radiological Differences between Direct and Oblique Lateral Interbody Fusion Techniques.
Authors: Ko MJ, Park SW, Kim YB Abstract Objective: Few studies have reported direct comparative data of lumbar spine angles between direct lateral interbody fusion (DLIF) and oblique lateral interbody fusion (OLIF). The purpose of this study was to investigate the clinical and radiological outcomes of DLIF and OLIF, and determine influential factors. Methods: The same surgeon performed DLIF from May 2011 to August 2014 (n=201) and OLIF from September 2014 to September 2016 (n=142). Radiological parameters, cage height, cage angle (CA), cage width (CW), and cage location were assessed. We checked the cage locat...
Source: Journal of Korean Neurosurgical Society - May 9, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Minimally Invasive Surgery without Decompression for Hepatocellular Carcinoma Spinal Metastasis with Epidural Spinal Cord Compression Grade 2.
Conclusion: MIS without decompression would be a good choice for patients with HCC spinal metastasis of ESCC grade 2, especially those with limited prognosis, mechanical instability and no neurologic deficit. PMID: 30919607 [PubMed - as supplied by publisher] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - March 30, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Editorial Statistics and Best Reviewers Award 2018 for Journal of Korean Neurosurgical Society.
Authors: Chung M, Kim BT PMID: 30915200 [PubMed] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - March 29, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Journal of Korean Neurosurgical Society from 2001 to 2006, the Pivotal Period of Transition and Preparation for Making Great Stride.
Authors: Yang HJ Abstract In the circumstances of overflowing numbers of medical journals, progress of their own medical journal is one of the primary concerns of many medical societies. Among the 46-year-history of Journal of Korean Neurosurgical Society (JKNS), it undertook a period of important transition and preparation to take off for journal with international reputation during the period from 2001 to 2006. The overall process of manuscript handling, peer review, and editorial work has undergone systematic improvement. Workshops for authors, reviewer and editors were held, which were very helpful to improve t...
Source: Journal of Korean Neurosurgical Society - March 7, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Reduction of Inflammation and Enhancement of Motility after Pancreatic Islet Derived Stem Cell Transplantation Following Spinal Cord Injury.
CONCLUSION: Transplantation of PI-SCs might be an effective strategy to improve functional recovery following spinal cord trauma. PMID: 30840970 [PubMed] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - March 7, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Change of Extracellular Glutamate Level in Striatum during Deep Brain Stimulation of the Entopeduncular Nucleus in Rats.
CONCLUSION: Clinical results of GPi DBS are not only limited to direct inhibitory outflow to thalamus. They also include extensive alteration within basal ganglia. PMID: 30840971 [PubMed] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - March 7, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Prevalence and Anatomy of Aberrant Right Subclavian Artery Evaluated by Computed Tomographic Angiography at a Single Institution in Korea.
CONCLUSION: It is important to be aware ARSA before surgical approaches to upper thoracic vertebrae in order to avoid complications and effect proper treatment. In patients with a known ARSA, a right transradial approach for aortography or cerebral angiography should be changed to a left radial artery or transfemoral approach. PMID: 30840972 [PubMed] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - March 7, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Patient-Specific Computational Fluid Dynamics in Ruptured Posterior Communicating Aneurysms Using Measured Non-Newtonian Viscosity : A Preliminary Study.
CONCLUSION: By using measured non-Newtonian viscosity and geometry on patient-specific CFD analysis, morphologic differences in hemodynamic features, such as changes in whole blood viscosity and WSS, were observed. Therefore, measured non-Newtonian viscosity might be possibly useful to obtain patient-specific hemodynamic and morphologic result. PMID: 30840973 [PubMed] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - March 7, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Meta-Analysis of Endovascular Treatment for Acute M2 Occlusion.
CONCLUSION: EVT seems to be technically feasible for acute M2 occlusion. Direct comparative studies between EVT and medical treatment are needed further to find specific beneficiary group after EVT in patient with M2 occlusion. PMID: 30840974 [PubMed] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - March 7, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Efficacy and Safety of Endovascular Treatment in Patients with Internal Carotid Artery Occlusion and Collateral Middle Cerebral Artery Flow.
CONCLUSION: In patients with ICA occlusion and collateral MCA flow, decisions regarding treatment strategy based on TFCA can help achieve favorable clinical outcomes. EVT strategy with respect to etiology of ICA occlusion might help achieve better angiographic outcomes. PMID: 30840975 [PubMed] (Source: Journal of Korean Neurosurgical Society)
Source: Journal of Korean Neurosurgical Society - March 7, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Spinal Hydatid Cyst Disease : Challenging Surgery - an Institutional Experience.
CONCLUSION: The two-way drainage catheter placed inside a cyst provides post-operative chlorhexidine washing inside the cavity. Although a spinal hydatid cyst is a benign pathology and seen rarely, it is extremely difficult to achieve a real cure for patients with this disease. Treatment modalities should be aggressive and include total excision of cyst without rupture, decompression of spinal cord, flushing of the area with scolicidal drugs, and ensuring spinal stabilization. After the operation the patients should be kept under routine follow up. Radiological and clinical examinations are useful in spotting a recurrence....
Source: Journal of Korean Neurosurgical Society - March 7, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research

Association of Congestive Heart Failure and Death with Ankylosing Spondylitis : A Nationwide Longitudinal Cohort Study in Korea.
Authors: Bae KH, Hong JB, Choi YJ, Jung JH, Han IB, Choi JM, Sohn S Abstract OBJECTIVE: We attempted to discover that Ankylosing spondylitis (AS) has a comprehensive relationship with congestive heart failure and death. METHODS: We used a nationwide database managed by the Korean National Health Insurance Service from 2010 to 2014. Twelve thousand nine hundred eighty-eight patients with a diagnosis of AS and 64940 age- and sex- stratified matching subjects without AS were enrolled in the AS and control groups. Incidence probabilities of 6 years congestive heart failure and death in each group were calculated. T...
Source: Journal of Korean Neurosurgical Society - March 7, 2019 Category: Neurosurgery Tags: J Korean Neurosurg Soc Source Type: research