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Acta Neurochirurgica

Floriaan G C M De Kleermaeker, Jan Meulstee, Ronald H M A Bartels, Wim I M Verhagen
BACKGROUND: The effectiveness of the surgical treatment of carpal tunnel syndrome (CTS) is well known on short term. However, limited data is available about long-term outcome after carpal tunnel release (CTR). The aims of this study were to explore the long-term outcome after CTR and to identify prognostic factors for long-term outcome. METHODS: Patients with clinically defined CTS underwent CTR and completed the Boston Carpal Tunnel Questionnaire at baseline (T0 ), at about 8 months (T1 ), and after a median follow-up of 9 years (T2 ), as well as a 6-point scale for perceived improvement (at T1 and T2 )...
February 19, 2019: Acta Neurochirurgica
Thibault Passeri, Pierre-Olivier Champagne, Anne-Laure Bernat, Shunya Hanakita, Henri Salle, Emmanuel Mandonnet, Sébastien Froelich
BACKGROUND: The relationship between increased meningioma incidence and growth and long-term hormonal therapy with cyproterone acetate (CPA) in women has been recently established in literature. Following the raise in awareness from hormonal treatment, we describe a potential relationship between the progesterone agonist nomegestrol acetate (NOMAC) and meningioma growth. METHODS: After implementation of a screening protocol to detect potential interactions between hormonal exposure and occurrence of meningioma, we identified patients taking NOMAC and newly diagnosed with a meningioma...
February 19, 2019: Acta Neurochirurgica
Arthur Hosmann, Felix Hinker, Christian Dorfer, Irene Slavc, Christine Haberler, Karin Dieckmann, Engelbert Knosp, Thomas Czech
BACKGROUND: Choroid plexus tumors are rare entities. Resection is the mainstay of treatment in grade I and grade II tumors and adjuvant treatment is usually reserved for the less frequent choroid plexus carcinoma (CPC). Outcome is not only related to their histological grade but also dependent on their size, location, and presence of often multifactorial disturbances of cerebrospinal fluid (CSF) circulation. METHODS: Retrospective analysis of 36 consecutive patients operated on a choroid plexus tumor at our institution in a mixed pediatric and adult population between 1991 and 2016...
February 19, 2019: Acta Neurochirurgica
N Scheer, R Ghaznawi, M A A van Walderveen, R W Koot, P W A Willems
BACKGROUND: Surgical treatment of intracranial saccular aneurysms aims to prevent (re)hemorrhage by complete occlusion of the aneurysmal lumen. It is unclear whether routine postoperative imaging, to assess aneurysmal occlusion, is necessary since intraoperative assessment by the neurosurgeon may be sufficient. We assessed routine clinical protocols for post-clipping imaging in the Netherlands and determined whether intraoperative assessment of aneurysm clippings sufficiently predicts aneurysm residuals...
February 19, 2019: Acta Neurochirurgica
Munehiro Otsuka, Yuichiro Kikkawa, Tomoya Kamide, Kaima Suzuki, Aoto Shibata, Toshiki Ikeda, Hiroki Kurita
BACKGROUND: This study aimed to investigate factors related to improvement of hemodynamics and evaluated the usefulness of intraoperative Doppler for predicting postoperative hemodynamics in patients with cerebrovascular atherosclerotic steno-occlusive disease (CASD) of the internal carotid artery (ICA) or middle cerebral artery (MCA) who were treated with extracranial-intracranial (EC-IC) bypass surgery. METHOD: Forty-eight patients with CASD of the ICA or MCA who were treated by superficial temporal artery to middle cerebral artery bypass with a follow-up longer than 12 months were enrolled...
February 18, 2019: Acta Neurochirurgica
Katsuhiro Mizutani, Arturo Consoli, Federico Di Maria, Oguzhan Coskun, Georges Rodesch
The superficial middle cerebral veins (SMCVs) are large veins to drain the brain and therefore anatomical knowledge of them is important for neurosurgeons and neuroradiologists. In a patient with a ruptured blister aneurysm, we incidentally found during angiography an aberrant drainage of the SMCVs, which penetrated the lateral part of the greater sphenoid wing and directly connected the SMCVs with the deep facial vein. Neurosurgeons usually need to remove that part of the greater sphenoid wing during the fronto-temporal approach...
February 18, 2019: Acta Neurochirurgica
Hiroaki Matsumoto, Hiroaki Minami, Ikuya Yamaura, Yasuhisa Yoshida
OBJECTIVE: We have recently seen cases of postoperative epidural and subdural hematomas after duraplasty with an artificial dura substitute. In these cases, the epidural hematoma flowed into the subdural space through a tear at the suture point of the artificial dura substitute. In this study, whether such hematomas are specific to a certain artificial dura substitute was investigated, and the cause and risk factors were examined. METHODS: In our institute, 46 patients underwent brain tumor extirpation with duraplasty with an artificial dura substitute; Gore-Tex and SEAMDURA were used as the artificial dura substitutes...
February 14, 2019: Acta Neurochirurgica
Kosaku Amano, Yasuo Aihara, Shunsuke Tsuzuki, Yoshikazu Okada, Takakazu Kawamata
BACKGROUND: For the precise removal of pituitary tumors, preserving the surrounding normal structures, we need real-time intraoperative information on tumor location, margins, and surrounding structures. The aim of this study was to evaluate the benefits of a new intraoperative real-time imaging modality using indocyanine green (ICG) fluorescence through an endoscopic system during transsphenoidal surgery (TSS) for pituitary tumors. METHODS: Between August 2013 and October 2014, 20 patients with pituitary and parasellar region tumors underwent TSS using the ICG fluorescence endoscopic system...
February 14, 2019: Acta Neurochirurgica
Bon-Jour Lin, Kun-Ting Hong, Tzu-Tsao Chung, Wei-Hsiu Liu, Dueng-Yuan Hueng, Yuan-Hao Chen, Da-Tong Ju, Hsin-I Ma, Ming-Ying Liu, Hung-Chang Hung, Chi-Tun Tang
BACKGROUND: Endoscopic transorbital approach is a novel development of minimally invasive skull base surgery. Recently, anatomical studies have started to discuss the expanded utilization of endoscopic transorbital route for intracranial intradural lesions. The goal of this cadaveric study is to assess the feasibility of endoscopic transorbital transtentorial approach for exposure of middle incisural space. METHODS: Anatomical dissections were performed in four human cadaveric heads (8 sides) using 0- and 30-degree endoscopes...
February 13, 2019: Acta Neurochirurgica
Peng Hu, Hong-Qi Zhang, Xing-Juan Li
BACKGROUND: Microsurgical clipping of large ophthalmic-carotid artery (OA) aneurysms is technically challenging. Among the reported approaches, pterional combined epidural and subdural approach is one of the efficient choices. METHOD: We have applied this approach to treat a 33-year old female patient with a left large OA aneurysm. The step-wise technical details of this approach are reported. CONCLUSION: We show that it is a safe way to clip large OA aneurysms through a step-wise pterional combined epidural and subdural approach, which could make a clear anatomy and a confident manipulation...
February 13, 2019: Acta Neurochirurgica
David van Nieuwenhuizen, K Mariam Slot, Martin Klein, Dagmar Verbaan, Esther Sanchez Aliaga, Jan J Heimans, W Peter Vandertop, Saskia M Peerdeman, Jaap C Reijneveld
BACKGROUND: Studies on the associations between preoperative cerebral edema, cognitive functioning, and health-related quality of life (HRQOL) in WHO grade I meningioma patients are virtually lacking. We studied the association between preoperative cerebral edema on postoperative cognitive functioning and HRQOL 6 months postoperatively in WHO grade I meningioma patients. METHODS: Twenty-one consecutive WHO grade I meningioma patients, who underwent surgery, were matched individually for age, gender, and educational level to healthy controls...
February 13, 2019: Acta Neurochirurgica
Chloe Gui, Jonathan C Lau, Suzanne E Kosteniuk, Donald H Lee, Joseph F Megyesi
BACKGROUND: An important aspect in the management of patients with diffuse low-grade gliomas (LGGs) involves monitoring the lesions via serial magnetic resonance imaging (MRI). However, radiological interpretations of LGG interval scans are often qualitative and thus difficult to use clinically. METHODS: To contextualize these assessments, we retrospectively compared radiological interpretations of LGG growth or stability to volume change measured by manual segmentation...
February 13, 2019: Acta Neurochirurgica
Ida Christine Olesrud, Mette Katrine Schulz, Ljubo Marcovic, Bjarne Winther Kristensen, Christian Bonde Pedersen, Charlotte Kristiansen, Frantz Rom Poulsen
BACKGROUND: This study aimed to investigate the incidence of residual tumour after resection of brain metastases using early postoperative magnetic resonance imaging (MRI) and the influence of residual tumour on overall patient survival. METHODS: Data from 72 consecutive adult patients undergoing surgery for cerebral metastases over an 18-month study period were retrospectively collected. Early postoperative MRI was used to determine the presence of postoperative residual tumour...
February 13, 2019: Acta Neurochirurgica
Henrikki Rönkkö, Harry Göransson, Hanna-Stiina Taskinen, Pasi Paavilainen, Tero Vahlberg, Matias Röyttä
BACKGROUND: Side-to-side neurorrhaphy may protect the denervated end organ and preserve the initial connection with proximal stump. We examined the effect of protective side-to-side anastomosis on nerve and end organ regeneration in proximal nerve injury model. METHODS: The left common peroneal nerve of 24 Sprague Dawley rats was proximally transected. In groups B and C, side-to-side neurorrhaphy was performed distally between the peroneal and tibial nerves without (group B) and with (group C) partial donor nerve axotomy inside the epineural window...
February 12, 2019: Acta Neurochirurgica
Atsushi Ogata, Kazuhiko Oho, Noriaki Matsumoto, Jun Masuoka, Kohei Inoue, Motofumi Koguchi, Fumitaka Yoshioka, Tatsuya Abe
Proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors, a novel class of monoclonal antibodies, reduce low-density lipoprotein cholesterol levels and improve outcomes of myocardial infarction and stroke. However, the effects of PCSK9 inhibitors on carotid plaques remain unclear. We describe three patients treated with PCSK9 inhibitor alirocumab for progressive carotid stenosis despite lipid-lowering statin therapy. All three patients had vulnerable plaques on magnetic resonance (MR) plaque imaging...
February 7, 2019: Acta Neurochirurgica
Yusuke Tomita, Kazuhiko Kurozumi, Kenichi Inagaki, Masahiro Kameda, Joji Ishida, Takao Yasuhara, Tomotsugu Ichikawa, Tomoko Sonoda, Fumio Otsuka, Isao Date
BACKGROUND: Hyponatremia generally occurs after transsphenoidal surgery (TSS) in a delayed fashion. Most patients with delayed postoperative hyponatremia (DPH) are asymptomatic or only express non-specific symptoms; consequently, DPH is associated with prolonged hospitalization. No consensus has been reached on which patients are at greatest risk of developing DPH. We reviewed patients with DPH and evaluated predictive factors for DPH. METHODS: We retrospectively analyzed 107 consecutive patients who underwent endoscopic TSS for pituitary adenoma (January 2010-December 2016)...
February 5, 2019: Acta Neurochirurgica
Anna Bjornson, Tamara Tajsic, Angelos G Kolias, Adam Wells, Mohammad J Naushahi, Fahim Anwar, Adel Helmy, Ivan Timofeev, Peter J Hutchinson
BACKGROUND: Cranioplasty is an increasingly common procedure performed in neurosurgical centres following a decompressive craniectomy (DC), however, timing of the procedure varies greatly. OBJECTIVES: The aim of this study is to compare the surgical outcomes of an early compared to a late cranioplasty procedure. METHODS: Ninety adult patients who underwent a prosthetic cranioplasty between 2014 and 2017 were studied retrospectively. Timing of operation, perioperative complications and length of stay were assessed...
February 4, 2019: Acta Neurochirurgica
Timothy H Ung, Alexander Yang, Mohammed Aref, Zach Folzenlogen, Vijay Ramakrishnan, A Samy Youssef
BACKGROUND: Olfaction is an undervalued sense in neurosurgery. Attempted surgical resection of anterior cranial fossa meningiomas puts the olfactory pathway at risk. Preservation of olfaction may increase the postoperative quality of life. Objective assessment of olfaction may inform clinical decision-making and influence the selection of operative approaches for surgical resection. METHODS: We reviewed all patients who underwent surgical resection for midline anterior skull base meningiomas from July 1, 2014, through December 31, 2017...
February 4, 2019: Acta Neurochirurgica
Thomas A van Essen, Hugo F den Boogert, Maryse C Cnossen, Godard C W de Ruiter, Iain Haitsma, Suzanne Polinder, Ewout W Steyerberg, David Menon, Andrew I R Maas, Hester F Lingsma, Wilco C Peul
The collaborator names are inverted.
February 4, 2019: Acta Neurochirurgica
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