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Acta Neurochirurgica

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https://www.readbyqxmd.com/read/29224085/aphasia-and-cognitive-impairment-decrease-the-reliability-of-rntms-language-mapping
#1
Vera Schwarzer, Ina Bährend, Tizian Rosenstock, Felix R Dreyer, Peter Vajkoczy, Thomas Picht
BACKGROUND: Navigated transcranial magnetic stimulation (nTMS) is a non-invasive mapping tool to locate functional areas of the brain. While gaining importance in the preoperative planning process in motor eloquent regions, its usefulness for reliably identifying language areas is still being discussed. The aim of this study was to identify biometric factors which might influence and therefore bias the results of repetitive nTMS (rnTMS) over cortex areas relevant for language. METHOD: We included data of 101 patients with language eloquent brain lesions who underwent preoperative rnTMS examination bihemispherically...
December 9, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29224084/bipolar-dual-lead-spinal-cord-stimulation-between-two-electrodes-on-the-ventral-and-dorsal-sides-of-the-spinal-cord-consideration-of-putative-mechanisms
#2
Mitsuru Watanabe, Takamitsu Yamamoto, Chikashi Fukaya, Toshiki Obuchi, Toshikazu Kano, Kazutaka Kobayashi, Hideki Oshima, Atsuo Yoshino
We have applied bipolar dual-lead spinal cord stimulation (SCS) between two cylinder-type electrodes placed on the ventral and dorsal sides of the spinal cord (dual-VD-SCS). A 36-year-old man suffered from burning pain from his right elbow down to his hand after brachial plexus avulsion. The areas with paresthesia induced by conventional SCS did not include the painful hand area. However, dual-VD-SCS completely induced paresthesia in the painful hand area. We speculate that dual-VD-SCS can be applied to stimulate deeper sites of the dorsal column and dorsal horn than conventional SCS and is useful for pain reduction...
December 9, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29222590/technical-accuracy-of-the-integration-of-an-external-ultrasonography-system-into-a-navigation-platform-effects-of-ultrasonography-probe-registration-and-target-detection
#3
Frederic A Wanis, Lars Wessels, Marcus H T Reinges, Eberhard Uhl, Andreas Jödicke
BACKGROUND: Intraoperative navigated ultrasonography has reached clinical acceptance, while published data for the accuracy of some systems are missing. We technically quantified and optimised the accuracy of the integration of an external ultrasonography system into a BrainLab navigation system. METHODS: A high-end ultrasonography system (Elegra; Siemens, Erlangen, Germany) was linked to a navigation system (Vector Vision; BrainLab, Munich, Germany). In vitro accuracy and precision was calculated from differences between a real world target (high-precision crosshair phantom) and the ultrasonography image of this target in the navigation coordinate system...
December 8, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29214402/decision-making-and-neurosurgeons-agreement-in-the-management-of-aneurysmal-subarachnoid-haemorrhage-based-on-computed-tomography-angiography
#4
Nicolai Maldaner, Jan-Karl Burkhardt, Martin Nikolaus Stienen, Johannes Goldberg, David Bervini, Philippe Bijlenga, Davide Croci, Daniel Zumofen, Donato D'Alonzo, Serge Marbacher, Rodolfo Maduri, Roy Thomas Daniel, Carlo Serra, Giuseppe Esposito, Marian C Neidert, Oliver Bozinov, Luca Regli
BACKGROUND: To determine the neurosurgeon's agreement in aneurysmal subarachnoid haemorrhage (aSAH) management with special emphasis on the rater's level of experience. A secondary aim was to analyse potential aneurysm variables associated with the therapeutic recommendation. METHOD: Basic clinical information and admission computed tomography angiography (CTA) images of 30 consecutive aSAH patients were provided. Twelve neurosurgeons independently evaluated aneurysm characteristics and gave recommendations regarding the emergency management and aneurysm occlusion therapy...
December 7, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29214401/predictors-of-surgical-outcomes-for-severe-cubital-tunnel-syndrome-a-review-of-146-patients
#5
Jinsong Tong, Zhen Dong, Bin Xu, Chenggang Zhang, Yudong Gu
BACKGROUND: Full recovery is unlikely for severe cubital tunnel syndrome, and prognostic factors remain uncertain. We aimed to identify predictors of surgical outcome for these patients. METHODS: One hundred forty-six patients with McGowan grade III cubital tunnel syndrome were evaluated retrospectively with a minimum follow-up of 2 years. All patients underwent either in situ decompression or subcutaneous transposition. The primary outcome measure was postoperative McGowan grade...
December 7, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29214400/vasomodulatory-effects-of-the-angiotensin-ii-type-1-receptor-antagonist-losartan-on-experimentally-induced-cerebral-vasospasm-after-subarachnoid-haemorrhage
#6
Stefan Wanderer, Jan Mrosek, Gessler Florian, Seifert Volker, Juergen Konczalla
BACKGROUND: Cerebral vasospasm following subarachnoid haemorrhage (SAH) remains one of the major factors contributing to poor overall patient outcome. Prostaglandin F2-alpha (PGF2a) induces vasoconstriction. After SAH, PGF2a leads to cerebral inflammation and enhanced vasoconstriction, resulting in cerebral vasospasm. Losartan is already known to have beneficial effects in stroke models and also on several cerebral inflammatory processes. Therefore, the aim of the study was to analyse the effect of losartan on PGF2a-enhanced vasoconstriction after SAH...
December 6, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29214399/preservation-of-motor-maps-with-increased-motor-evoked-potential-amplitude-threshold-in-rmt-determination
#7
Giuseppe Lucente, Steven Lam, Heike Schneider, Thomas Picht
OBJECTIVE: Non-invasive pre-surgical mapping of eloquent brain areas with navigated transcranial magnetic stimulation (nTMS) is a useful technique linked to the improvement of surgical planning and patient outcomes. The stimulator output intensity and subsequent resting motor threshold determination (rMT) are based on the motor-evoked potential (MEP) elicited in the target muscle with an amplitude above a predetermined threshold of 50 μV. However, a subset of patients is unable to achieve complete relaxation in the target muscles, resulting in false positives that jeopardize mapping validity with conventional MEP determination protocols...
December 6, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29214398/monisha-kumar-joshua-m-levine-james-schuster-w-andrew-kofke-eds-neurocritical-care-management-of-the-neurosurgical-patient-elsevier-2017-558%C3%A2-pp-300-tables-450-illustrations-isbn-978-0-323-32-106-8-e-isbn-9780323322225
#8
https://www.readbyqxmd.com/read/29197937/parapharyngeal-neuroglial-heterotopia-appearing-as-high-uptake-on-18f-fdg-pet-case-report-and-literature-review-of-radiographical-findings
#9
Masayuki Kameyama, Tomohiro Kawaguchi, Hidetaka Niizuma, Takenori Ogawa, Kenichi Watanabe, Toshiaki Hayashi, Kanako Sato, Masayuki Kanamori, Mika Watanabe, Yukio Katori, Shigeo Kure, Teiji Tominaga
Parapharyngeal neuroglial heterotopia is a rare entity, and the specific radiographical findings are unclear. We present a case of parapharyngeal neuroglial heterotopia examined with proton magnetic resonance spectroscopy (1H-MRS) and 18F-fluorodesoxyglucose positron emission tomography (18F-FDG PET). Our neonate patient presented with neck mass and polyhydramnios during gestation. Computed tomography and magnetic resonance imaging demonstrated the morphological characteristics, but failed to establish the diagnosis...
December 2, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29197023/cerebral-and-spinal-cavernomas-associated-with-klippel-trenaunay-syndrome-case-report-and-literature-review
#10
Takaya Yoshinaga, Kenji Yagi, Takashi Morishita, Hiroshi Abe, Masani Nonaka, Tooru Inoue
Klippel-Trenaunay-Weber syndrome (KTWS) involves a triad of conditions, including cutaneous hemangiomas, venous varicosities, and osseous and soft-tissue hypertrophy of the affected limb. We describe a rare case of multiple cavernomas in the central nervous system in a patient with KTWS. A-64-year-old man with KTWS and a previous brain hemorrhage presented with sudden onset of gait and vesicorectal disturbance. The magnetic resonance imaging scan showed a cavernoma associated with hemorrhage in his lumbosacral spinal cord...
December 1, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29192373/flexible-endoscopically-assisted-evacuation-of-acute-and-subacute-subdural-hematoma-through-a-small-craniotomy-preliminary-results
#11
Toshinari Kawasaki, Yoshitaka Kurosaki, Hitoshi Fukuda, Masanori Kinosada, Ryota Ishibashi, Akira Handa, Masaki Chin, Sen Yamagata
BACKGROUND: The first choice to treat acute subdural hematoma (SDH) is a large craniotomy under general anesthesia. However, increasing age or comorbid burden of the patients may render invasive treatment strategy inappropriate. These medically frail patients with SDH may benefit from a combination of small craniotomy and endoscopic hematoma removal, which is less invasive and even available under local anesthesia. Although hematoma evacuation with a rigid endoscope for acute or subacute SDHs has been reported in the literature, use of a flexible endoscope may have distinct advantages...
November 30, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29189910/bacterial-colonisation-of-suture-material-after-routine-neurosurgical-procedures-relevance-for-wound-infection
#12
Bujung Hong, Andreas Winkel, Philipp Ertl, Sascha Nico Stumpp, Kerstin Schwabe, Meike Stiesch, Joachim K Krauss
BACKGROUND: Wound healing impairment is a serious problem in surgical disciplines which may be associated with chronic morbidity, increased cost and patient discomfort. Here we aimed to investigate the relevance of bacterial colonisation on suture material using polymerase chain reaction (PCR) to detect and taxonomically classify bacterial DNA in patients with and without wound healing problems after routine neurosurgical procedures. METHODS: Repeat surgery was performed in 25 patients with wound healing impairment and in 38 patients with well-healed wounds...
November 30, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29188367/traumatic-vertebral-artery-rupture-causing-intraspinal-hematoma-and-progressive-neurological-symptoms
#13
Ehab Shiban, Bernhard Meyer
Traumatic vertebral artery rupture is extremely rare. Herein, we report a case of traumatic vertebral artery rupture causing extensive intraspinal hematoma and progressive neurological symptoms.
November 30, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29188366/pre-operative-neutrophil-count-and-neutrophil-lymphocyte-count-ratio-nlcr-in-predicting-the-histological-grade-of-paediatric-brain-tumours-a-preliminary-study
#14
J R F Wilson, F Saeed, A K Tyagi, J R Goodden, G Sivakumar, D Crimmins, M Elliott, S Picton, P D Chumas
INTRODUCTION: The neutrophil-lymphocyte count ratio (NLCR) is an established prognostic marker for renal, lung and colorectal carcinomas and has been suggested to be predictive of histological grade and outcome in adult intracranial tumours. The purpose of this study was to determine whether a correlation of the pre-operative neutrophil count (NC) and NLCR with the final histological grade exists in paediatric intracranial tumours. METHODS: A retrospective analysis was undertaken at a single centre...
November 29, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29185056/intramedullary-holocord-abscess-secondary-to-infected-dermoid-cyst
#15
Dorota Tassigny, Edward Fomekong, Guus Koerts, Christian Raftopoulos
In the literature, less than ten cases of holocord intramedullary abscess in children have been described. A 15-month-old girl presented with flaccid paraplegia and dermal sinus in the sacral region. MRI highlighted an infected lumbar dermoid cyst. The child underwent surgery to remove the cyst and purulent collection. Five days after surgery, she developed upper limbs paresis. An MRI showed a holocord abscess. A catheter was inserted through a cervical myelotomy into the abscess for drainage with a good postoperative recovery...
November 28, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29185055/bioglue%C3%A2-induced-granuloma-causing-symptomatic-spinal-cord-compression-a-late-complication
#16
F T Rasul, D Tusnea, K M David
BioGlue® is an inert, bioadhesive surgical substance commonly used in spinal surgery to aid dural closure. The authors describe two cases in which the use of BioGlue® caused a local reaction culminating in the formation of a granuloma that caused cord compression several years after surgery in one case in which a second operation was required to relieve cord compression and remove the foreign material. In the other case spontaneous resolution occurred. To our knowledge these are the first reports of delayed spinal cord compression secondary to BioGlue®-induced granuloma...
November 28, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29177631/manipulating-an-internal-pulse-generator-until-twiddler-s-syndrome-in-a-patient-treated-with-deep-brain-stimulation-for-obsessive-compulsive-disorder
#17
Andrea Franzini, Rebecca Ranieri, Orsola Gambini, Giuseppe Messina
BACKGROUND: Twiddler's syndrome consists of rotation or manipulation of an implantable pulse generator (IPG) in its subcutaneous pocket by a patient, thus causing hardware malfunction. METHODS: This syndrome is being reported more frequently in patients treated with deep brain stimulation (DBS). RESULTS: We report the case of a woman who had received bed nucleus of stria terminalis (BNST) electrodes for obsessive-compulsive disorder (OCD) and developed twiddler's syndrome a few months after surgery, causing hardware malfunction due to obsessive manipulation of the IPG...
November 25, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29177630/intraoperative-monitoring-of-sensory-part-of-the-trigeminal-nerve-using-blink-reflex-during-microvascular-decompression-for-trigeminal-neuralgia
#18
Valentina Simioni, J G Capone, E Sette, E Granieri, M Farneti, M A Cavallo, V Tugnoli
Intraoperative monitoring during cerebellopontine angle surgery is widely accepted. While techniques which monitor cranial motor nerves are commonly used, monitoring the sensory afferents has been challenging. Considering the reflex arc, blink reflex (BR) might be useful in monitoring the sensory part of the trigeminal nerve, the brainstem connections and the facial nerve. We describe the case of a patient who developed hemifacial hypoesthesia after microvascular decompression surgery for trigeminal neuralgia...
November 25, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29177598/systemic-metabolism-and-energy-consumption-after-microsurgical-clipping-and-endovascular-coiling-for-aneurysmal-subarachnoid-hemorrhage
#19
Hiroya Shimauchi-Ohtaki, Masahiko Tosaka, Toshiyuki Ohtani, Keiya Iijima, Nobuo Sasaguchi, Hideyuki Kurihara, Yuhei Yoshimoto
BACKGROUND: The postoperative metabolic states of subarachnoid hemorrhage (SAH) patients were investigated using indirect calorimetry (IDC) and various nutritional evaluations to establish any difference in perioperative metabolic and nutritional states between microsurgical and endovascular treatment. METHODS: This study included 30 acute aneurysmal SAH patients with ruptured intracranial aneurysms treated by surgical clipping (n = 16) or coil embolization (n = 14) at a single institute...
November 24, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29177597/aggressive-pituitary-adenomas-is-pathology-the-only-feature-of-aggressiveness
#20
EDITORIAL
Amir R Dehdashti, Shamik Chakraborty
No abstract text is available yet for this article.
November 24, 2017: Acta Neurochirurgica
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