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World Neurosurgery

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https://www.readbyqxmd.com/read/30223038/ictal-asystole-induced-by-right-posterior-quadrant-epilepsy-report-of-a-radically-treated-case
#1
Naoki Ichikawa, Ayataka Fujimoto, Tohru Okanishi, Keishiro Sato, Shimpei Baba, Shinji Itamura, Mitsuyo Nishimura, Hideo Enoki
BACKGROUND: Ictal asystole (IA) and ictal bradycardia (IB) are mainly seen with temporal or frontal lobe epilepsy. Many patients with these conditions undergo cardiac pacemaker therapy, but not epilepsy surgery. CASE DESCRIPTION: We report the case of a 15-year-old boy with IA and IB secondary to right posterior quadrant epilepsy (PoQE) who underwent right posterior quadrant disconnection, but not cardiac pacemaker implantation. He has remained free from daily epileptic seizures, IA and IB for more than 6 months postoperatively...
September 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30218805/treatment-of-unruptured-brain-arteriovenous-malformations-a-single-center-experience-of-86-patients-and-a-critique-of-the-aruba-trial
#2
Thomas W Link, Graham Winston, Justin T Schwarz, Ning Lin, Athos Patsalides, Pierre Gobin, Susan Pannullo, Philip E Stieg, Jared Knopman
OBJECTIVE: The A Randomized Trial of Unruptured Brain Arteriovenous Malformations (ARUBA) trial has received fierce criticism including considerable selection bias, poor generalizability, questionable clinical practices (only 15.8% underwent surgical resection, the gold standard for AVM treatment), and short follow-up (33 months) for a disease process that carries a life-long risk. In this study, we sought to present our own experience treating unruptured brain AVMs in order to provide supporting evidence of the ARUBA trial criticism...
September 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30218804/an-academic-genealogy-of-neurosurgery-via-the-department-chair
#3
Robert Ziechmann, Haydn Hoffman, Lawrence S Chin
BACKGROUND: An academic genealogy describes mentoring relationships in an academic discipline. In this study, we outline an academic genealogy of neurosurgery department chairs in the United States beginning with the founding members of the field. METHODS: The biographical information provided by the Society for Neurological Surgery provided the basis for our genealogy. We also performed a literature review with Pubmed using the term "neurosurgery department history"...
September 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30218803/establishment-of-a-nomogram-based-model-for-predicting-the-prognostic-value-of-inflammatory-biomarkers-and-preoperative-d-dimer-level-in-spinal-ewing-s-sarcoma-family-tumors-a-retrospective-study-of-83-patients
#4
Kehan Xu, Yan Lou, Rui Sun, Yujie Liu, Bo Li, Jialin Li, Quan Huang, Wei Wan, Jianru Xiao
BACKGROUND: Ewing's sarcoma family tumors (ESFTs) is the second most common malignancy in the children and adolescence. The purpose of this retrospective study was to evaluate the prognostic role of inflammatory biomarkers and preoperative D-dimer level in patients with spinal ESFTs. METHOD: Neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), lymphocyte-to-monocyte ratio (LMR), albumin/globulin ratio (AGR), and C-reactive protein to albumin ratio (CAR), preoperative D-dimer level and clinical parameters were conducted and analyzed...
September 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30218802/delayed-c5-palsy-after-anterior-cervical-decompression-surgery-preoperative-foraminal-stenosis-and-postoperative-spinal-cord-shift-increase-the-risk-of-palsy
#5
Hajime Takase, Hidetoshi Murata, Mitsuru Sato, Takahiro Tanaka, Ryohei Miyazaki, Tetsuya Yoshizumi, Kensuke Tateishi, Nobutaka Kawahara, Tetsuya Yamamoto
OBJECTIVE: Postoperative C5-palsy is now a well-known complication after cervical decompression with either a posterior or anterior approach. Its etiology has been discussed more regarding the posterior. The main hypothesis is that postoperative spinal cord-shift causes root traction and palsy. However, the pathogenesis in anterior cases has not been fully described. Therefore, the purpose of this study was to clarify the risk factors for C5-palsy in the anterior approach through our C5 palsy cases...
September 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30218801/revised-cardiac-risk-index-vs-asa-status-as-a-predictor-for-non-cardiac-events-following-posterior-lumbar-decompression
#6
Rachel S Bronheim, Eric K Oermann, David S Bronheim, John M Caridi
BACKGROUND: The Revised Cardiac Risk Index (RCRI) was designed to predict risk for cardiac events following non-cardiac surgery. However, there is a paucity of literature that directly addresses the relationship between RCRI and non-cardiac outcomes following posterior lumbar decompression (PLD). The objective of this study is to determine the ability of RCRI to predict non-cardiac adverse events following PLD. METHODS: ACS-NSQIP was utilized to identify patients undergoing PLD from 2006-2014...
September 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30218800/the-identification-of-factors-that-influence-the-quality-of-bypass-anastomosis-and-an-evaluation-of-the-usefulness-of-an-experimental-practical-scale-in-this-regard
#7
Ahmad Hafez, Justiina Huhtakangas, Muhammad Sajjad, Michael T Lawton, Rokuya Tanikawa, Mika Niemelä
BACKGROUND: Several factors associated with interrupted and continuous suturing techniques affect the quality of bypass anastomosis. It is difficult to determine the impact of these during surgery. Thus, the primary study objective was to evaluate factors with the potential to influence the quality of bypass anastomosis using either interrupted or continuous suturing. A secondary objective was to evaluate the usefulness of a practical scale when comparing interrupted and continuous suturing techniques, in order to improve bypass anastomosis...
September 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30218799/utility-of-early-post-operative-mri-after-glioblastoma-resection-implications-on-patient-survival
#8
Oliver D Mrowczynski, Samer Zammar, Alexandre J Bourcier, Sara T Langan, Jason Liao, Charles S Specht, Elias B Rizk
OBJECTIVES: The standard of care for glioblastoma is surgical resection followed by combination temozolomide and radiation. Magnetic resonance imaging (MRI) is utilized preoperatively for tumor resection planning and in some instances, MRI is also obtained post-operatively to assess for any complications and to determine extent of resection. There is some question whether early routine post-operative imaging of patients after tumor resection is beneficial to long term outcomes, especially with the increased scrutiny of increasing health care costs...
September 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30218798/the-intervertebral-disc-physiology-and-pathology-of-a-brittle-joint
#9
REVIEW
Aymeric Amelot, Christian Mazel
BACKGROUND: Intervertebral discs (ID) degeneration represents the number one cause for outpatient clinic visits worldwide. Mechanisms are discussed but not yet clearly established. Consequently, back pain management is commonly limited to symptomatic treatment therapies. OBJECTIVES: the aim of this review is to evaluate major progress and to unravel the biology and pathology of ID discogenic pain. STUDY DESIGN: the design of this study is a systematic review...
September 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30218797/preoperative-three-dimensional-angiography-may-reduce-ischemic-complications-during-clipping-of-ruptured-intracranial-aneurysms
#10
Lukas Goertz, Christoph Kabbasch, Jan Borggrefe, Christina Hamisch, Sergej Telentschak, Niklas von Spreckelsen, Pantelis Stavrinou, Marco Timmer, Gerrit Brinker, Roland Goldbrunner, Boris Krischek
OBJECTIVE: Microsurgical clipping of aneurysms demands precise spatial understanding of aneurysm morphology and vascular geometry. We analyzed the impact of preoperative three-dimensional (3D) angiographic imaging on clinical and angiographic outcome after clipping of ruptured intracranial aneurysms (RIAs). METHODS: This is a retrospective analysis of consecutive patients that underwent microsurgical clipping during the acute phase of subarachnoid hemorrhage between 2010 and 2017...
September 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30218796/neuroendoscopic-resection-of-trigeminal-schwannoma-in-the-pterygopalatine-infratemporal-fossa-via-the-transnasal-perpendicular-plate-palatine-bone-or-transnasal-maxillary-sinus-approach
#11
Jinlong Shi, Jian Chen, TengFei Chen, Xide Xu, Zhongzheng Jia, Lanchun Ni, Yu Zhang, Shi Wei
BACKGROUND: Both the pterygopalatine fossa (PPF) and the infratemporal fossa (ITF) lie outside the midline of the skull base. Lesions in the PPF or ITF include trigeminal schwannoma (trigeminal schwannoma, TS), which originates from the second or third branch of the trigeminal nerve (maxillary nerve or mandibular nerve). Due to their typically deep anatomical location, lesions in the PPF or ITF can be difficult to treat using traditional surgical approaches. In recent years, because of their advantages, which include the fact that they allow the problem to be observed close up, neuroendoscopic techniques are increasingly being applied in skull base surgery, especially in treatment of lesions around the midline of the base of the skull...
September 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30218795/surgical-removal-of-skull-base-meningiomas-in-symptomatic-elderly-patients
#12
Carlos Eduardo da Silva, Paulo Eduardo Peixoto de Freitas
OBJECTIVES: Meningiomas are tumors that frequently occur in elderly patients, surgical treatment of which is hazardous due to multiple comorbidities. The authors report on a series of elderly patients who were treated with surgical removal and compare them with a group of younger patients with similar tumors. METHODS: A retrospective study, including a group of elderly patients with symptomatic skull base meningiomas and a matched control group of younger patients was carried out...
September 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30218794/cervical-myelopathy-caused-by-intracranial-dural-arteriovenous-fistula-with-acute-worsening-following-steroid-administration
#13
Sunfu Zhang, Hao Liu, Jin Li
Intracranial dural arteriovenous fistulas (DAVFs) draining into the perimedullary venous system are rare and potentially life-threatening lesions often presenting as a myelopathy. The early and proper diagnosis of this rare disease is challenging because the symptoms are nonspecific. Acute clinical deterioration in patients with spinal DAVFs treated with steroid administration has been described. Here we report a case of cervical myelopathy caused by intracranial DAVF with acute worsening after steroid administration...
September 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30217783/ventricular-volume-dynamics-during-the-development-of-adult-chronic-communicating-hydrocephalus-in-a-rodent-model
#14
T Vivas-Buitrago, G Pinilla-Monsalve, I Jusué-Torres, K Oishi, J Robison, J A Crawford, M V Pletnikov, J Xu, O Baledént, A Lokossou, A L Hung, A M Blitz, J Lu, D A Herzka, H Guerrero-Cazares, K Oishi, S Mori, Quiñones-Hinojosa, D Rigamonti
INTRODUCTION: The pathophysiology of normal pressure hydrocephalus and the correlation with its symptomatology is not well understood. OBJECTIVE: To monitor and evaluate the enlargement patterns of the ventricular system (VS) for each ventricle and its correlation with the presenting symptoms. METHODS: Bilateral Kaolin injection into the subarachnoid space overlying the cranial convexities was done in 18 adult rats. MRI was performed on an 11...
September 11, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30217782/impact-of-connector-placement-and-design-on-bending-stiffness-of-spinal-constructs
#15
Jakub Godzik, Nick Hool, Jonathan F Dalton, Alexander C Whiting, Anna G U S Newcomb, Brian P Kelly, Neil R Crawford
OBJECTIVE: To evaluate the stability of multiple rod-connector construct designs using a mechanical 4-point bending testing frame. METHODS: A mechanical study was used to evaluate the bending stiffness of 3 connectors across 12 different configurations of rod-connector-rod constructs. Stability was evaluated in flexion-extension and lateral bending. Combinations of rods having 1 of 3 diameters (4.0 mm, 5.5 mm, and 6.0 mm) connected by 1 of 3 connector types (parallel open, snap-on, and hinged) were compared...
September 11, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30217781/minimally-invasive-interhemisferic-approach-for-giant-olfactory-groove-meningioma-technical-note
#16
Adriana Rodrigues Libório Dos Santos, Marcos Vinícius Calfat Maldaun, Daniel Andrade Gripp, Jonathan Watanabe, Ricardo Hiroshi Fujiki, Paulo Henrique Pires de Aguiar
BACKGROUND: Skull base tumors, such as large olfactory groove meningiomas (OGM), are a challenge for neurosurgeons. However the tendency to reduce invasive surgeries is gaining more adepts. Authors describe a minimally invasive interhemisferic approach with falx window for microsurgical resection of the giant OGM as technical note. METHODS: A minimal medial frontal craniotomy measuring 3 to 5 cm in size is performed and interhemisferic approach is combined with an opening in the falx to improve microsurgical resection of the giant OGM...
September 11, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30217780/alignment-risk-factors-for-proximal-junctional-kyphosis-and-the-effect-of-lower-thoracic-junctional-tethers-for-adult-spinal-deformity
#17
Thomas J Buell, Ching-Jen Chen, John C Quinn, Avery L Buchholz, Marcus D Mazur, Jeffrey P Mullin, James H Nguyen, Davis G Taylor, Shay Bess, Breton G Line, Christopher P Ames, Frank J Schwab, Virginie Lafage, Christopher I Shaffrey, Justin S Smith
OBJECTIVE: The aims of this retrospective cohort study were to: 1) identify new alignment risk factors for proximal junctional kyphosis (PJK) in adult spinal deformity (ASD) patients with lower thoracic upper instrumented vertebra (UIV); and 2) determine the effect of junctional tethers on PJK and UIV alignment. METHODS: We analyzed consecutive ASD patients who underwent posterior instrumented fusion with lower thoracic UIV (T9-T11). Posteriorly-anchored junctional tethers were utilized more recently for ligamentous augmentation to prevent PJK...
September 11, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30213682/automatic-intra-operative-correction-of-brain-shift-for-accurate-neuro-navigation
#18
Daniel Høyer Iversen, Wolfgang Wein, Frank Lindseth, Geirmund Unsgård, Ingerid Reinertsen
BACKGROUND: Unreliable neuro-navigation due to inaccurate patient-to-image registration and brain-shift is a major problem in conventional MR guided neurosurgery. OBJECTIVE: Perform a prospective intra-operative validation of a system for fully automatic correction of this inaccuracy based on intra-operative 3D ultrasound (US) and MR-to-US registration. METHODS: The system has been tested intra-operatively in thirteen tumor resection cases and the performance has been evaluated intra-operatively and post-operatively...
September 10, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30213681/neurosurgical-residency-training-in-latin-america-current-status-challenges-and-future-opportunities
#19
Ricardo Murguia-Fuentes, Nuruddin Husein, Alfonso Vega, Leonardo Rangel-Castilla, J Marcus Rotta, Alfredo Quinones-Hinojosa, Gerardo Guinto, Yoshua Esquenazi
No abstract text is available yet for this article.
September 10, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30213680/vagal-nerve-stimulation-indications-for-revision-in-adult-refractory-epilepsy
#20
Michael J Gigliotti, Gordon Mao, Derrick A Dupré, Jack Wilberger
OBJECTIVE: The goal of this study was to assess the indications of revision for vagal nerve stimulation at a single institution in an adult population with drug resistant epilepsy. METHODS: This was a retrospective review of a prospectively collected database who underwent vagal nerve stimulator implantation for drug-resistant epilepsy from 1992-2017. Patients receiving VNS implants were monitored throughout their peri-operative and post-operative course and were classified according to type of seizure at the time of diagnosis and indications for VNS revision...
September 10, 2018: World Neurosurgery
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