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Acta Neurochirurgica

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https://www.readbyqxmd.com/read/29450654/visualizing-protoporphyrin-ix-formation-in-the-dura-tail-of-meningiomas-by-mass-spectrometry-imaging
#1
Benjamin Brokinkel, Sabrina Kröger, Volker Senner, Astrid Jeibmann, Uwe Karst, Walter Stummer
BACKGROUND: The advantages of 5-aminolevulinacid (5-ALA)-induced fluorescence-guided surgery in meningiomas are increasingly discussed. In this context, despite detectable tumor tissue in histopathologial analyses, no fluorescence was shown at the dura tail using the standard operating microscope. Thus, 5-ALA metabolism in this surgically important site remains unknown but needs to be elucidated when further evaluating indications of fluorescence-guided surgery in meningiomas. METHOD: We here present the spatially resolved identification of protoporphyrin IX (PpIX) in sphenoid ridge meningioma cryosections from a patient who underwent fluorescence-guided microsurgery using molecular imaging analysis by matrix-assisted laser desorption/ionization tandem mass spectrometry (MALDI-MS/MS)...
February 15, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29450653/microdialysis-as-a-useful-tool-to-detect-cerebral-metabolic-crises
#2
LETTER
Marcelo de-Lima-Oliveira, Fernando Paschoal Junior, Edson Bor-Seng-Shu
No abstract text is available yet for this article.
February 15, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29445966/thoracic-ossification-of-ligamentum-flavum-manifesting-holocord-syringomyelia-case-report
#3
Yoshiaki Takamura, Yasuhiro Takeshima, Ryuta Matsuoka, Young Soo Park, Hiroyuki Nakase
It has been reported that syringomyelia is rarely associated with degenerative spinal disorders, but the case of holocord syringomyelia is never reported. We here present a case of a 59-year-old woman with right shoulder pain, dysesthesia of the right hand, and gait disturbance. Radiographically, examinations of the spine demonstrated holocord syringomyelia with ossification of ligamentum flavum at T2/3 level. Holocord syringomyelia was reduced remarkably after posterior decompression at the T2/3 level, and her symptoms also improved...
February 14, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29445965/traumatic-subarachnoid-hemorrhage-related-to-ophthalmic-artery-avulsion-a-case-report
#4
Alessandro Prior, Luca Allegretti, Ilaria Melloni, Marta Bovio, Francesco Laganà, Marco Ceraudo, Gianluigi Zona
We present a case of ophthalmic artery (OA) traumatic avulsion, leading to a post-traumatic subarachnoid hemorrhage (SAH) with ventricular blood invasion and hydrocephalus, mimicking an internal carotid aneurysm rupture. This is the third case of such an event reported in literature and the first without orbital fractures and optic nerve avulsion. Conservative treatment was sufficient for the avulsion, but surgery was needed for the coexisting eye luxation. Traumatic OA avulsion is a rare but possible event and should be suspected in case of basal cisterns SAH, evidence of orbital trauma and CT angiogram or angiographic absence of opacification of the OA...
February 14, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29423776/full-recovery-from-drummer-s-dystonia-with-foot-and-arm-symptoms-after-stereotactic-ventro-oral-thalamotomy-a-case-report
#5
Takashi Asahi, Takaomi Taira, Kiyonobu Ikeda, Jiro Yamamoto, Shuji Sato
Ventro-oral (Vo) thalamotomy is effective in patients with focal task-specific dystonias (FTSDs), but only in those with upper-limb symptoms. We describe a patient with drummer's dystonia who completely recovered after Vo thalamotomy. A 37-year-old man who started playing drums at 14 began having difficulty performing fine movements with his right foot when drumming at 22. He experienced right hand cramps while drumming 3 months before visiting our hospital. He was diagnosed with FTSD. Left Vo thalamotomy was performed, which led to complete improvement of symptoms...
February 8, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29417227/risk-of-de-novo-aneurysm-formation-in-patients-with-unruptured-intracranial-aneurysms
#6
Enrico Giordan, Waleed Brinjikji, Roanna L Vine, Giuseppe Lanzino
BACKGROUND AND PURPOSE: The rate of de novo aneurysm formation in patients with unruptured aneurysm without history of subarachnoid hemorrhage is scarcely defined in literature. We report the incidence of de novo aneurysm formation in a large contemporary series of patients with unruptured intracranial aneurysm (UIA) undergoing serial neurovascular imaging. METHODS: Neurovascular imaging studies of 321 consecutive UIA patients with no prior history of subarachnoid hemorrhage, with at least 3 years of follow-up imaging, were reviewed by a neuroradiologist and a neurosurgeon...
February 7, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29411117/computer-tomography-based-morphometric-analysis-of-the-cervical-spine-pedicles-c3-c7
#7
Leonard Westermann, Carolin Spemes, Peer Eysel, Marvin Simons, Max J Scheyerer, Jan Siewe, Dominik Baschera
BACKGROUND: Our aim was to examine the specific dimensions of cervical pedicles in a large Caucasian cohort on high dissolving CT scans. METHODS: A retrospective analysis of 100 cervical spine CT scans with a maximum slice thickness of 1 mm in axial, sagittal, and coronal reconstructions was performed. The pedicle axial length (PAL), inner and outer pedicle diameter (IPD/OPD), pedicle sagittal and transverse angle (PSA/PTA), pedicle height (PH), pedicle width (PW), and the cortical thickness (COT) at different margins were measured by two independent observers...
February 6, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29404703/the-role-of-computed-tomography-in-the-screening-of-patients-presenting-with-symptoms-of-an-intracranial-tumour
#8
Sharri Junadi Mortensen, Shima Naebi Bjerrum, Stine Frost Hedegaard, Anna Tietze, Hanne Gottrup, Gorm von Oettingen
BACKGROUND: To improve the quality of care for brain cancer patients, the Danish Ministry of Health has set standards for the diagnosis and treatment. When a patient is suspected of having a malignant tumour involving the brain, it is required that a magnetic resonance imaging of the cerebrum (MRI-C) be obtained within seven calendar days of referral from a primary care provider. This standard has the potential to consume MR imaging time that might otherwise be used for evaluation or treatment monitoring of other patients...
February 5, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29404702/on-government-regulated-access-to-diagnostic-imaging-in-neurosurgery
#9
EDITORIAL
Thomas Mindermann
No abstract text is available yet for this article.
February 5, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29397449/the-timing-of-stereotactic-radiosurgery-for-medically-refractory-trigeminal-neuralgia-the-evidence-from-diffusion-tractography-images
#10
Cheng-Chia Lee, Shin Tai Chong, Ching-Jen Chen, Sheng-Che Hung, Huai-Che Yang, Chung-Jung Lin, Chih-Chun Wu, Wen-Yuh Chung, Wan-Yuo Guo, David Hung-Chi Pan, Hsiu-Mei Wu, Jason P Sheehan, Ching-Po Lin
BACKGROUND: Diffusion tensor imaging (DTI) is a novel MRI technique that enables noninvasive evaluation of microstructural alterations in white matter of brain. Initially, DTI was used in intra- or inter-hemispheric association bundles. Recent technical advances are overcoming the challenges of imaging small white matter bundles, such as the cranial nerves. In this study, we use DTI to shed more light on the microstructure changes in long-standing trigeminal neuralgia. We also utilize DTI to study the effect of early stereotactic radiosurgery (SRS) on the microstructures of the trigeminal nerve and to predict the effectiveness of early SRS in the treatment of medically refractory trigeminal neuralgia (TN)...
February 3, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29396603/endplate-changes-after-lumbar-discectomy-with-and-without-implantation-of-an-annular-closure-device
#11
Martin Barth, Christel Weiß, Gerrit J Bouma, Richard Bostelmann, Adisa Kursumovic, Javier Fandino, Claudius Thomé
BACKGROUND: The implantation of a bone-anchored annular closure device (ACD) might be associated with the developed new endplate changes (EPC) after surgery. METHODS: A post hoc analysis has been done in patients from a prospective randomized multicenter study. All patients underwent limited lumbar discectomy with intraoperative randomization into the groups limited lumbar discectomy alone or additional ACD implantation. Low-dose lumbar computed tomography (CT) and clinical investigations were performed preoperatively and 12 months after the operation...
February 2, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29396602/subthalamic-deep-brain-stimulation-under-general-anesthesia-and-neurophysiological-guidance-while-on-dopaminergic-medication-comparative-cohort-study
#12
Mohammed Jamil Asha, Benjamin Fisher, Jamilla Kausar, Hayley Garratt, Hari Krovvidi, Colin Shirley, Anwen White, Ramesh Chelvarajah, Ismail Ughratdar, James A Hodson, Hardev Pall, Rosalind D Mitchell
OBJECTIVES: The authors have previously reported on the technical feasibility of subthalamic nucleus deep brain stimulation (STN DBS) under general anesthesia (GA) with microelectrode recording (MER) guidance in Parkinsonian patients who continued dopaminergic therapy until surgery. This paper presents the results of a prospective cohort analysis to verify the outcome of the initial study, and report on wider aspects of clinical outcome and postoperative recovery. METHODS: All patients in the study group continued dopaminergic therapy until GA was administered...
February 2, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29380063/intraoperative-monitoring-of-cerebral-cortical-blood-flow-and-middle-cerebral-artery-pressure-as-a-substitute-for-preoperative-balloon-test-occlusion-in-patients-with-internal-carotid-artery-aneurysms
#13
Yoshitaka Kubo, Takahiro Koji, Ryushi Kondo, Kenji Yoshida, Kuniaki Ogasawara
BACKGROUND: Balloon test occlusion (BTO) is a useful examination to evaluate the indications and methods for revascularization when treating unclippable internal carotid artery (ICA) aneurysms by parent artery occlusion. The purpose of the present study was to investigate the relationship between intraoperative monitoring of cerebral cortical blood flow (CoBF) and middle cerebral artery (MCA) pressure during surgical parent artery occlusion and the findings of BTO. METHODS: Eleven patients with an ICA aneurysm in the cavernous portion underwent preoperative BTO with brain perfusion single-photon emission tomography...
January 29, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29372402/intraoperative-intravenous-fluorescein-as-an-adjunct-during-surgery-for-peroneal-intraneural-ganglion-cysts
#14
Jonathan J Stone, Christopher S Graffeo, Godard C W de Ruiter, Michael G Rock, Robert J Spinner
The intraoperative use of intravenous fluorescein is presented in a case of peroneal intraneural ganglion cyst. When illuminated with the operative microscope and yellow filter, this fluorophore provided excellent visualization of the abnormal cystic peroneal nerve and its articular branch connection. The articular (synovial) theory for the pathogenesis of intraneural cysts is further supported by this pattern of fluorescence. Further, our report presents a novel use of fluorescein in peripheral nerve surgery...
January 25, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29362933/supplementary-motor-area-syndrome-after-surgery-for-parasagittal-meningiomas
#15
Jon Berg-Johnsen, Einar August Høgestøl
BACKGROUND: Resection within the supplementary motor area (SMA) may be accompanied by dramatic motor deficits and speech arrest when the dominant hemisphere is involved, termed the SMA syndrome. Typically, the muscle tone of the paralyzed extremities is preserved, and in most cases, a complete or near complete recovery is seen within a few months. The SMA syndrome has not been recognized for extra-axial tumor surgery in approximation of the SMA. METHODS: We observed the SMA syndrome in a patient operated for a parasagittal meningioma in the posterior frontal region, and this observation intrigued us to prospectively collect similar cases...
January 23, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29362932/increased-rate-of-ventriculostomy-related-hemorrhage-following-endovascular-treatment-of-ruptured-aneurysms-compared-to-clipping
#16
Christian Scheller, Christian Strauss, Julian Prell, Sebastian Simmermacher, Silvio Brandt
OBJECTIVE: Acutely ruptured aneurysms can be treated by endovascular intervention or via surgery (clipping). After endovascular treatment, the risk of thromboembolic complications is reduced by the use of anticoagulative agents, which is not required after clipping. The aim of the study is to investigate the rate of ventriculostomy-related hemorrhage after endovascular treatment and clipping. METHODS: A consecutive series of 99 patients treated for a ruptured aneurysm which required an external ventricular drainage between 2010 and 2015 were included...
January 23, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29356895/management-of-spinal-infection-a-review-of-the-literature
#17
REVIEW
Sara Lener, Sebastian Hartmann, Giuseppe M V Barbagallo, Francesco Certo, Claudius Thomé, Anja Tschugg
Spinal infection (SI) is defined as an infectious disease affecting the vertebral body, the intervertebral disc, and/or adjacent paraspinal tissue and represents 2-7% of all musculoskeletal infections. There are numerous factors, which may facilitate the development of SI including not only advanced patient age and comorbidities but also spinal surgery. Due to the low specificity of signs, the delay in diagnosis of SI remains an important issue and poor outcome is frequently seen. Diagnosis should always be supported by clinical, laboratory, and imaging findings, magnetic resonance imaging (MRI) remaining the most reliable method...
January 22, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29353408/clinical-applications-of-dynamic-ct-angiography-for-intracranial-lesions
#18
Saksham Gupta, Wenya Linda Bi, Srinivasan Mukundan, Ossama Al-Mefty, Ian F Dunn
BACKGROUND: Dynamic CT angiography (dCTA) augments traditional CTA with temporal resolution and has been demonstrated to influence operative planning in skull base surgery. METHODS: Three hundred twenty-five dynamic CTA cases from a single institution were reviewed for indication of study, findings, and comparison to other modalities of imaging. RESULTS: The most frequent application of dCTA was pre-operative surgical planning (59.4%); resection of skull base tumors represented the majority of these pre-operative studies (93...
January 20, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29353407/role-of-the-petrous-ridge-and-angulation-of-the-trigeminal-nerve-in-the-pathogenesis-of-trigeminal-neuralgia-with-implications-for-microvascular-decompression
#19
Andrei Brinzeu, Chloé Dumot, Marc Sindou
INTRODUCTION: Vascular compression is the main pathogenetic factor in apparently primary trigeminal neuralgia; however some patients may present with clinically classical neuralgia but no vascular conflict on MRI or even at surgery. Several factors have been cited as alternative or supplementary factors that may cause neuralgia. This work focuses on the shape of the petrous ridge at the point of exit from the cavum trigeminus as well as the angulation of the nerve at this point. METHODS: Patients with trigeminal neuralgia that had performed a complete imagery workup according to our protocol and had microvascular decompression were included as well as ten controls...
January 20, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29350292/disc-herniation-occult-on-preoperative-imaging-but-visualized-microsurgically-as-the-cause-of-idiopathic-thoracic-spinal-cord-herniation
#20
Christian T Ulrich, Christian Fung, Eike Piechowiak, Jan Gralla, Andreas Raabe, Jürgen Beck
Idiopathic spinal cord herniation (ISCH) through an anterior dural defect is rare and the cause is uncertain. Recently, through interpreting imaging studies, disc herniation was proposed to be a major cause for ISCH. We describe the case of a 50-year-old woman with progressive myelopathy who was diagnosed with a thoracic spinal cord herniation. Microsurgical exploration revealed an anterior vertical dural defect and a small concomitant disc herniation, occult on the preoperative imaging, which caused the dural defect and led to ISCH...
January 19, 2018: Acta Neurochirurgica
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