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Neurosurgical Review

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https://www.readbyqxmd.com/read/27896457/the-value-of-quantitative-sensory-testing-in-spine-research
#1
Anja Tschugg, Wolfgang N Löscher, Sara Lener, Sebastian Hartmann, Matthias Wildauer, Sabrina Neururer, Claudius Thomé
The improvement of pain and functionality is the major goal of a surgical intervention. Thus, the purpose of the present prospective study was to evaluate whether subjective sensory deficits in patients with lumbar radiculopathy caused by a lumbar disc herniation are related to clinical status, using several outcome scores and the quantitative sensory testing (QST) pre- and 12 months postoperatively. We applied the QST in 52 patients with a single lumbar disc herniation treated by lumbar sequestrectomy pre- and 12 months postoperatively...
November 28, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27882440/hemodynamic-changes-in-a-middle-cerebral-artery-aneurysm-at-follow-up-times-before-and-after-its-rupture-a-case-report-and-a-review-of-the-literature
#2
A Sejkorová, K D Dennis, H Švihlová, O Petr, G Lanzino, A Hejčl, D Dragomir-Daescu
Hemodynamic parameters play a significant role in the development of cerebral aneurysms. Parameters such as wall shear stress (WSS) or velocity could change in time and may contribute to aneurysm growth and rupture. However, the hemodynamic changes at the rupture location remain unclear because it is difficult to obtain data prior to rupture. We analyzed a case of a ruptured middle cerebral artery (MCA) aneurysm for which we acquired imaging data at three time points, including at rupture. A patient with an observed MCA aneurysm was admitted to the emergency department with clinical symptoms of a subarachnoid hemorrhage...
November 24, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27873040/can-mri-predict-meningioma-consistency-a-correlation-with-tumor-pathology-and-systematic-review
#3
REVIEW
Amy Yao, Margaret Pain, Priti Balchandani, Raj K Shrivastava
Tumor consistency is a critical factor that influences operative strategy and patient counseling. Magnetic resonance imaging (MRI) describes the concentration of water within living tissues and as such, is hypothesized to predict aspects of their biomechanical behavior. In meningiomas, MRI signal intensity has been used to predict the consistency of the tumor and its histopathological subtype, though its predictive capacity is debated in the literature. We performed a systematic review of the PubMed database since 1990 concerning MRI appearance and tumor consistency to assess whether or not MRI can be used reliably to predict tumor firmness...
November 21, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27858303/multimodal-treatment-of-craniofacial-osteosarcoma-with-high-grade-histology-a-single-center-experience-over-35%C3%A2-years
#4
Marton König, Terje A Osnes, Ingvild Lobmaier, Bodil Bjerkehagen, Øyvind S Bruland, Kirsten Sundby Hall, Torstein R Meling
High-grade craniofacial osteosarcoma (CFOS) is an aggressive malignancy with a poor prognosis. Our goals were to evaluate treatment outcomes in those treated at a single referral institution over 35 years and to compare our results to the available literature. A retrospective analysis of all 42 patients treated between 1980 and 2015 at Oslo University Hospital, Norway, identified in a prospectively collected database, was conducted. Mean follow-up was 79.6 months. Overall survival at 2 and 5 years was 70...
November 17, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27841008/comparison-between-smaller-ruptured-intracranial-aneurysm-and-larger-un-ruptured-intracranial-aneurysm-gene-expression-profile-analysis
#5
Hao Li, Haowen Li, Haiyan Yue, Wen Wang, Lanbing Yu, ShuoWang, Yong Cao, Jizong Zhao
As it grows in size, an intracranial aneurysm (IA) is prone to rupture. In this study, we compared two extreme groups of IAs, ruptured IAs (RIAs) smaller than 10 mm and un-ruptured IAs (UIAs) larger than 10 mm, to investigate the genes involved in the facilitation and prevention of IA rupture. The aneurismal walls of 6 smaller saccular RIAs (size smaller than 10 mm), 6 larger saccular UIAs (size larger than 10 mm) and 12 paired control arteries were obtained during surgery. The transcription profiles of these samples were studied by microarray analysis...
November 14, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27832380/endoscopic-approach-routes-in-the-posterior-fossa-cisterns-through-the-retrosigmoid-keyhole-craniotomy-an-anatomical-study
#6
Peter Kurucz, Gabor Baksa, Lajos Patonay, Firas Thaher, Michael Buchfelder, Oliver Ganslandt
Endoscopy in cerebellopontine angle surgery is an increasingly used technique. Despite of its advantages, the shortcomings arising from the complex anatomy of the posterior fossa are still preventing its widespread use. To overcome these drawbacks, the goal of this study was to define the anatomy of different endoscopic approaches through the retrosigmoid craniotomy and their limitations by surgical windows. Anatomical dissections were performed on 25 fresh human cadavers to describe the main approach-routes...
November 10, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27822594/should-we-resect-peri-lesional-hemosiderin-deposits-when-performing-lesionectomy-in-patients-with-cavernoma-related-epilepsy-cre
#7
REVIEW
P Dammann, C Schaller, U Sure
In this review, the authors perform a database search and summarize and discuss all eligible studies that provide (subgroup) analysis of the postoperative seizure outcome of patients with cavernoma-related epilepsy undergoing sole lesionectomy or lesionectomy including the hemosiderin rim. Based on the currently available data, the authors conclude that if surgical treatment of cavernoma-related epilepsy is performed, the peri-lesional hemosiderin should be resected. However, cases of eloquent or multiple localization or widespread hemosiderin deposit in which a complete resection is challenging should undergo a specific preoperative work-up...
November 8, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27822593/primary-extramedullary-spinal-germinoma-case-report-and-review-of-the-literature
#8
Qiang Hu, Wenhua Yu, Quan Du, Qiang Zhu, Zhihao Che
The authors describe a case of a purely primary extramedullary spinal germinoma in a young Chinese male. Primary spinal germinoma is extremely rare tumor. Currently, less than 30 histologically verified spinal germinoma cases have been reported previously, mostly involving Asian of Japanese descent. This 24-year-old male suffered from progressive low back pain radiating to both legs. Magnetic resonance imaging showed a well-demarcated, intradural extramedullary mass at the level of L2 and L3. The lesion was totally removed and was confirmed as a germinoma...
November 7, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27796602/conservative-and-surgical-treatment-of-pediatric-asymptomatic-lumbosacral-lipoma-a-meta-analysis
#9
REVIEW
Yang Xiong, Liu Yang, Wang Zhen, Dong Fangyong, Wan Feng, Lei Ting
The aim of this study is to compare the outcomes of surgical and conservative treatments of pediatric asymptomatic lumbosacral lipomas, and to address whether the patients can benefit from prophylactic surgeries. The literature reports of surgical and conservative treatments of child asymptomatic lumbosacral lipomas were reviewed and collected, and a meta-analysis of the reports regarding the incidence of sphincter and lower limb dysfunctions was performed. A total of five literatures were collected, containing a total of 403 patients, among which 124 patients received conservative treatments with 32 (25...
October 28, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27766486/evaluation-of-posterior-clinoid-process-pneumatization-by-multidetector-computed-tomography
#10
Veysel Burulday, Mehmet Hüseyin Akgül, Nuray Bayar Muluk, Mehmet Faik Ozveren, Ahmet Kaya
In the present study, we investigated the types and ratio of posterior clinoid process (PCP) pneumatization in paranasal sinus multidetector computed tomography (MDCT). Paranasal MDCT images of 541 subjects (227 males, 314 females), between 15 and 65 years old, were included into the study. Pneumatization of anterior clinoid process and pneumatization types (I, II, or III) were evaluated in the males and females. PCP pneumatization was detected in 20.7 % of the males and 11.5 % of the females. Right, left, and bilateral PCP pneumatizations were detected in 7...
October 21, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27734209/fatal-complications-following-microvascular-decompression-could-it-be-avoided-and-salvaged
#11
Lei Xia, Ming-Xing Liu, Jun Zhong, Ning-Ning Dou, Bin Li, Hui Sun, Shi-Ting Li
Although the microvascular decompression (MVD) surgery has become an effective remedy for cranial nerve rhizopathies, it is still challengeable and may result in a fatal sequel sometimes. Therefore, the operative skill needs to be further highlighted with emphasis on the safety and a preplan for management of postoperative fatal complications should be established. We retrospectively analyzed 6974 cases of MVD. Postoperatively, 46 patients (0.66 %) presented decline in consciousness with a positive finger-nose test (or failure to be tested) after wake up from the anesthesia, whom were focused on in this study...
October 12, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27726038/catheter-placement-for-lysis-of-spontaneous-intracerebral-hematomas-does-a-catheter-position-in-the-core-of-the-hematoma-allow-more-effective-and-faster-hematoma-lysis
#12
Vesna Malinova, Anna Schlegel, Veit Rohde, Dorothee Mielke
For the fibrinolytic therapy of intracerebral hematomas (ICH) using recombinant tissue plasminogen activator (rtPA), a catheter position in the core of the hematoma along the largest clot diameter was assumed to be optimal for an effective clot lysis. However, it never had been proven that core position indeed enhances clot lysis if compared with less optimal catheter positions. In this study, the impact of the catheter position on the effectiveness and on the time course of clot lysis was evaluated. We analyzed the catheter position using a relative error calculating the distance perpendicular to the catheter's center in relation to hematoma's diameter and evaluated the relative hematoma volume reduction (RVR)...
October 10, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27718100/erratum-to-a-prospective-randomized-multicenter-phase-i-ii-clinical-trial-to-evaluate-safety-and-efficacy-of-novocart-disk-plus-autologous-disk-chondrocyte-transplantation-in-the-treatment-of-nucleotomized-and-degenerative-lumbar-disks-to-avoid-secondary-disease
#13
Anja Tschugg, Michael Diepers, Simone Steinert, Felix Michnacs, Sebastian Quirbach, Martin Strowitzki, Hans Jörg Meisel, Claudius Thomé
No abstract text is available yet for this article.
October 8, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27714480/impact-of-spinal-cord-compression-from-intradural-and-epidural-spinal-tumors-on-perioperative-symptoms-implications-for-surgical-decision-making
#14
Malte Mohme, Klaus Christian Mende, Theresa Krätzig, Rosemarie Plaetke, Kerim Beseoglu, Julian Hagedorn, Hans-Jakob Steiger, Frank W Floeth, Sven O Eicker
Spinal cord or cauda equina compression (SCC) is an increasing challenge in clinical oncology due to a higher prevalence of long-term cancer survivors. Our aim was to determine the clinical relevance of SCC regarding patient outcome depending on different tumor entities and their anatomical localization (extradural/intradural/intramedullary). We retrospectively analyzed 230 patients surgically treated for SCC. Preoperative status for pain and neurological impairment were correlated to the degree of compression, tumor location, and early as well as short-term follow-up outcome parameters...
October 7, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27709410/innervation-of-the-blood-vessels-of-the-spinal-cord-a-comprehensive-review
#15
Michael J Montalbano, Marios Loukas, Rod J Oskouian, R Shane Tubbs
There is growing evidence that the nervous system influences spinal cord vasculature. However, most descriptions of the spinal cord have paid little attention to this important aspect. We reviewed the literature on the innervation of spinal cord vessels with an emphasis on findings that may be applicable to human medicine. Multiple neurotransmitters and competing theories have been implicated in the neural regulation of spinal cord blood vessels. Identifying valid mechanisms of pathogenesis could be beneficial to human patients with spinal cord lesions...
October 6, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27709409/radiation-induced-gliomas-a-comprehensive-review-and-meta-analysis
#16
Ryuya Yamanaka, Azusa Hayano, Tomohiko Kanayama
By conducting a systemic search of the PubMed database, we performed a comprehensive literature review to characterize secondary gliomas following radiotherapy treatment and to determine the most appropriate treatment strategy. Our analysis included 296 cases of radiation-induced gliomas. The primary lesion was characterized as a hematological malignancy in 104 cases (35.1 %), pituitary adenoma in 35 (11.8 %), craniopharyngioma in 19 (6.4 %), medulloblastoma in 38 (12.8 %), germ cell tumor in 13 (4.3 %), low-grade glioma in 28 (9...
October 5, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27696005/erratum-to-fourth-cranial-nerve-surgical-anatomy-in-the-subtemporal-transtentorial-approach-and-in-the-pretemporal-combined-inter-intradural-approach-through-the-fronto-temporo-orbito-zygomatic-craniotomy-a-cadaveric-study
#17
https://www.readbyqxmd.com/read/27647276/the-superior-petrosal-sinus-a-review-of-anatomy-embryology-pathology-and-neurosurgical-relevance
#18
Martin M Mortazavi, Marcus A Cox, Erfanul Saker, Sanjay Krishnamurthy, Ketan Verma, Christoph J Griessenauer, Marios Loukas, Rod J Oskouian, R Shane Tubbs
The superior petrosal sinus is located between the middle and posterior cranial fossae and is important during many neurosurgical approaches to the skull base. Using standard search engines, the anatomical and clinical importance of the superior petrosal sinus was investigated. The superior petrosal sinus is important in many neurosurgical approaches and pathological entities. Therefore, it is important for those who operate at the skull base or interpret imaging here to have a good working knowledge of its anatomy, development, and pathological involvement...
September 19, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27623783/vertebral-artery-and-osseous-anomalies-characteristic-at-the-craniocervical-junction-diagnosed-by-ct-and-3d-ct-angiography-in-normal-czech-population-analysis-of-511-consecutive-patients
#19
P Vaněk, Ondřej Bradáč, P de Lacy, R Konopková, J Lacman, V Beneš
There are numerous indications for stabilization using instrumentation of the upper cervical spine. This area is comprised of sophisticated anatomy. There is no study describing bony and vascular anomalies of this area in the middle European population. The main aim of this study was to investigate prevalence of any vertebral artery (VA) variations and osseous anomalies in the region of the craniocervical junction in a large sample of Czech patients based on three-dimensional computed tomographic angiography (3D CTA)...
September 13, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27452953/a-54-year-old-man-with-12-intracranial-aneurysms-and-familial-subarachnoid-hemorrhage-case-report
#20
Sayied Abdol Mohieb Hosainey, Torstein R Meling
Unruptured intracranial aneurysms occur in 1-3 % of the general population, and the risk of rupture is generally considered to be low. However, patients with multiple aneurysms and familial predisposition carry a particular risk of subarachnoid hemorrhage (SAH). A 54-year-old hypertensive man underwent screening with a head CT angiography (CTA) because of his comorbidities. CTA revealed multiple bilateral aneurysms around the circle of Willis. At first surgery, seven aneurysms were clipped (BA, ACOM, ICA ×2, and MCA ×3), two of which were detected intraoperatively only...
October 2016: Neurosurgical Review
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