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Acta Neurochirurgica

Alhusain Nagm, Tetsuya Goto, Toshihiro Ogiwara, Tetsuyoshi Horiuchi, Kazuhiro Hongo
No abstract text is available yet for this article.
June 18, 2018: Acta Neurochirurgica
Markus Bookland, Min Tang-Schomer, Eileen Gillan, Antonina Kolmakova
BACKGROUND: Juvenile pilocytic astrocytomas represent the largest group of pediatric brain tumors. The ideal management for these tumors is early, total surgical resection. To detect and track treatment response, a screening tool is needed to identify patients for surgical evaluation and assess the quality of treatment. The identification of aberrant miRNA profiles in the sera of juvenile pilocytic astrocytoma patients could provide such a screening tool. METHODS: The authors reviewed the serum profiles of 84 oncologically relevant miRNAs in pediatric juvenile pilocytic astrocytoma patients via qPCR screening...
June 18, 2018: Acta Neurochirurgica
Xiang Yang, Jiagang Liu, Yuekang Zhang, Seidu A Richard
OBJECT: Intratumoral hemorrhage (ITH) associated with vestibular schwannomas (VS) is very rare. We retrospectively analyzed VS patients presenting with ITH in our department to further gain a better understanding of this uncommon clinical presentation. METHODS: We treated seven patients who had VS presenting with ITH between January 2012 and June 2017. All the patients had preoperative computed tomography (CT), computed tomography angiography (CTA), and magnetic resonance imaging(MRI) done which aided in the radiological diagnosis as well as postoperative MRI to confirm the resection extent of the VS...
June 18, 2018: Acta Neurochirurgica
Giuseppe Lucente, Steven Lam, Heike Schneider, Thomas Picht
Funding information is added.
June 16, 2018: Acta Neurochirurgica
Ehab Shiban, Bernhard Meyer
No abstract text is available yet for this article.
June 8, 2018: Acta Neurochirurgica
Martin Barth, Christel Weiß, Gerrit J Bouma, Richard Bostelmann, Adisa Kursumovic, Javier Fandino, Claudius Thomé
No abstract text is available yet for this article.
June 7, 2018: Acta Neurochirurgica
Rossana Romani, George Ryan, Christian Benner, Jonathan Pollock
BACKGROUND: Improving access to neuroradiology investigations has led to an increased rate of diagnosis of incidental meningiomas. METHOD: A cohort of 136 incidental meningioma patients collected by a single neurosurgeon in a single neurosurgical centre is retrospectively analysed between 2002 and 2016. Demographic data, imaging and clinical features are presented. The radiological factors associated with meningiomas progression are also presented. RESULTS: The mean age at diagnosis was 65 (range, 33-94) years...
June 6, 2018: Acta Neurochirurgica
Tom Theys, Anais Van Hoylandt, Charlotte-Elise Broeckx, Laura Van Gerven, Joyce Jonkergouw, Marc Quirynen, Johannes van Loon
BACKGROUND: Cerebrospinal fluid (CSF) leakage represents an important and sometimes challenging complication in both cranial and spinal surgery. Current available options for dural closure pose inherent problems regarding safety, efficacy, immunogenicity, cost, and invasiveness. In this article, the use of leukocyte- and platelet-rich fibrin (L-PRF) derived from the patient's own blood is proposed to facilitate dural closure. We aim to describe the safety, feasibility, and applicability of L-PRF membranes and plugs in cranial and spinal neurosurgery...
June 6, 2018: Acta Neurochirurgica
Tiit Mathiesen
No abstract text is available yet for this article.
June 5, 2018: Acta Neurochirurgica
Jeffrey S Ehresman, David Mampre, Davis Rogers, Alessandro Olivi, Alfredo Quinones-Hinojosa, Kaisorn L Chaichana
OBJECT: There is currently no consensus as to whether meningiomas located inside the venous sinuses should be aggressively or conservatively treated. The goals of this study were to identify how sinus-invading meningiomas grow, report and compare growth rates of tumor components inside and outside the different venous sinuses, identify risk factors associated with increased tumor growth, and determine the effects of the extent of tumor resection on recurrence for meningiomas that invade the dural venous sinuses...
June 4, 2018: Acta Neurochirurgica
Ryo Kanematsu, Toshikazu Kimura, Yasumitsu Ichikawa, Tomohiro Inoue
BACKGROUND: Intravenous recombinant tissue-type plasminogen activator (rt-PA) with/without endovascular treatment is not as effective in atherosclerotic steno-occlusive acute ischemic stroke. Urgent superficial temporal artery-middle cerebral artery (STA-MCA) anastomosis is effective to some extent in progressing stroke, but the safety of STA-MCA anastomosis soon after rt-PA therapy is unknown. Our aim was to clarify the safety of STA-MCA anastomosis within 24 h after intravenous rt-PA...
June 4, 2018: Acta Neurochirurgica
José Fernando Guedes-Correa, Rosana Siqueira Brown
BACKGROUND: Fibrous bands (FB) are structures that cross the ulnar nerve (UN), distal to the cubital tunnel (CT). In surgical decompression of the UN in the elbow region, by endoscopy, these FB significantly impact UN visibility. The aim of the current study was to characterize the anatomical characteristics of these FB distal to the CT. METHODOLOGY: Eighteen formalinized upper limbs were dissected, nine right and nine left, within the Department of Anatomy of the Federal University of the State of Rio de Janeiro (UNIRIO)...
June 4, 2018: Acta Neurochirurgica
Ruiqi Chen, Si Zhang, Rui Guo, Lu Ma, Chao You
BACKGROUND: Although research on pediatric intracranial aneurysms is well documented, studies of pediatric intracranial distal arterial aneurysms (PIDAAs) remain scarce. METHODS: All pediatric patients (≤ 18 years) with intracranial aneurysms located distally to the M2 segment of the middle cerebral artery (MCA), A2 segment of the anterior cerebral artery, P2 segment of the posterior cerebral artery, and other cerebral arteries distal to the main branch who were treated at our center between January 2012 and April 2017 were retrospectively reviewed...
June 2, 2018: Acta Neurochirurgica
B M Dijkstra, A Motekallemi, W F A den Dunnen, J R Jeltema, G M van Dam, F A E Kruyt, R J M Groen
BACKGROUND: Meningiomas are the most frequently occurring primary intracranial tumours in adults. Surgical removal can only be curative by complete resection; however surgical access can be challenging due to anatomical localization and local invasion of bone and soft tissues. Several intraoperative techniques have been tried to improve surgical resection, including intraoperative fluorescence guided imaging; however, no meningioma-specific (fluorescent) targeting has been developed yet...
June 1, 2018: Acta Neurochirurgica
Ayataka Fujimoto, Tohru Okanishi, Sotaro Kanai, Keishiro Sato, Shinji Itamura, Shimpei Baba, Mitsuyo Nishimura, Takayuki Masui, Hideo Enoki
BACKGROUND: When the results of electroencephalography (EEG), magnetic resonance imaging (MRI), and seizure semiology are discordant or no structural lesion is evident on MRI, single-photon emission computed tomography (SPECT) and positron emission tomography (PET) are important examinations for lateralization or localization of epileptic regions. We hypothesized that the concordance between interictal 2-[18 F]fluoro-2-deoxy-D-glucose (18 FDG)-PET and iomazenil (IMZ)-SPECT could suggest the epileptogenic lobe in patients with non-lesional findings on MRI...
June 1, 2018: Acta Neurochirurgica
Elisabetta Marton, Enrico Giordan, Giorgio Gioffrè, Giuseppe Canova, Adolfo Paolin, Marina Grazia Mazzucco, Pierluigi Longatti
OBJECTIVE: Surgical management of spinal dysraphism often requires the use of dural substitutes. Amniotic membrane (AM) has drawn the interest of clinicians for its valuable concentration of cytokines and factors capable of promoting wound healing, re-epithelialization, inhibiting fibrosis and regulating angiogenesis. These beneficial qualities could make AM an interesting dural substitute for spina bifida repair. In this study, we describe the use of banked homologous AM as a dural substitute for the repair of spinal dysraphism in newborns...
June 1, 2018: Acta Neurochirurgica
Depeng Meng, Jun Zhou, Yaofa Lin, Zheng Xie, Huihao Chen, Ronghua Yu, Haodong Lin, Chunlin Hou
BACKGROUND: Quadriceps palsy is mainly caused by proximal lesions in the femoral nerve. The obturator nerve has been previously used to repair the femoral nerve, although only a few reports have described the procedure, and the outcomes have varied. In the present study, we aimed to confirm the feasibility and effectiveness of this treatment in a rodent model using the randomized control method. METHODS: Sixty Sprague-Dawley rats were randomized into two groups: the experimental group, wherein rats underwent femoral neurectomy and obturator nerve transfer to the femoral nerve motor branch; and the control group, wherein rats underwent femoral neurectomy without nerve transfer...
May 28, 2018: Acta Neurochirurgica
Philip Kofoed Månsson, Torben Skovbo Hansen, Marianne Juhler
BACKGROUND: Gravitational shunt valves and most recently the adjustable proSA® gravitational valve have been designed to counteract overdrainage and thereby improving clinical outcome. So far, the applicability in a broader mix of hydrocephalus patients is unrevealed. The aim of this study was to evaluate the utility of gravitational valves in two different clinical settings. METHODS: This retrospective double-center cohort study was enabled by two different shunt management policies...
May 27, 2018: Acta Neurochirurgica
Luis A Robles, Jesus M Paez, Dafne Ayala, Bernardo Boleaga-Duran
BACKGROUND: Glioependymal cysts (GECs) are benign intracranial cysts that have been rarely reported in the literature. The exact pathogenesis of these developmental anomalies is controversial. Moreover, the terminology used to name GECs and other intracranial cysts is confusing because they are undistinguishably reported under a variety of names. The available information in the literature about GECs is scarce, and for this reason, a detailed description about these uncommon lesions is necessary...
May 25, 2018: Acta Neurochirurgica
Iyan Younus, Jonathan A Forbes, Edgar G Ordóñez-Rubiano, Rafael Avendano-Pradel, Emanuele La Corte, Vijay K Anand, Theodore H Schwartz
OBJECTIVE: Radiation therapy is often advocated for residual or recurrent craniopharyngioma following surgical resection to prevent local recurrence. However, radiation therapy is not always effective and may render tumors more difficult to remove. If this is the case, patients may benefit more from reoperation if gross total resection can be achieved. Nevertheless, there is little data on the impact of radiation on reoperations for craniopharyngioma. In this study, we sought to analyze whether a history of previous radiation therapy (RT) affected extent of resection in patients with recurrent craniopharyngiomas subsequently treated with reoperation via endoscopic endonasal approach (EEA)...
May 25, 2018: Acta Neurochirurgica
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