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Acta Neurochir (Wien) 2019 Apr 19. Epub 2019 Apr 19.

Department of Neurosurgery, Neuropsychiatric Institute (MC 799), University of Illinois at Chicago, 912 South Wood Street, Rm 451N, Chicago, IL, 60612-5970, USA.

Acta Neurochir (Wien) 2019 Apr 19. Epub 2019 Apr 19.

Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Berlin, Germany.

Background: We introduce a user-friendly, standardized protocol for tractography of the major language fiber bundles.

Method: The introduced method uses dMRI images for tractography whereas the ROI definition is based on structural T1 MPRAGE MRI templates, without normalization to MNI space. ROIs for five language-relevant fiber bundles were visualized on an axial, coronal, or sagittal view of T1 MPRAGE images. Read More

Acta Neurochir (Wien) 2019 Apr 17. Epub 2019 Apr 17.

Department of Neurosurgery, Addenbrooke's Hospital, Cambridge, UK.

Acta Neurochir (Wien) 2019 Apr 18. Epub 2019 Apr 18.

Department of Neurosurgery, Royal Hallamshire Hospital, Sheffield Teaching Hospitals, Glossop Rd, Sheffield, South Yorkshire, S10 2JF, UK.

Acta Neurochir (Wien) 2019 Apr 15. Epub 2019 Apr 15.

Department of Neurosurgery, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga-shi, Saga, 849-8501, Japan.

Background: The most frequent neurological complication during coil embolization of a ruptured cerebral aneurysm is a thromboembolic event. The association between the tortuosity of the internal carotid artery (ICA) and thromboembolic events (TEEs) during coil embolization of ruptured cerebral aneurysms remains unclear. The present study aimed to investigate the association between extracranial ICA tortuosity and thromboembolic complications during coil embolization of anterior circulation ruptured aneurysms. Read More

Acta Neurochir (Wien) 2019 Apr 13. Epub 2019 Apr 13.

Department of Neurosurgery, University Hospital Münster, Germany Albert-Schweitzer-Campus 1, Building A1, 48149, Munster, Germany.

Background: 5-Aminolevulinic acid (5-ALA)-guided resection of gliomas in adults enables better differentiation between tumor and normal brain tissue, allowing a higher degree of resection, and improves patient outcomes. In recent years, several reports have emerged regarding the use of 5-ALA in other brain tumor entities, including pediatric brains tumors. Since gross total resection (GTR) of many brain tumors in children is crucial and the role of 5-ALA-guided resection of these tumors is not clear, we sought to perform a comprehensive literature review on this topic. Read More

Acta Neurochir (Wien) 2019 Apr 15. Epub 2019 Apr 15.

Brain Physics Laboratory, Division of Neurosurgery, Dept of Clinical Neurosciences, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK.

Incorrect family name of Nino Stocchetti. Read More

Acta Neurochir (Wien) 2019 Apr 13. Epub 2019 Apr 13.

Department of Neurosurgery, Masaryk Hospital, J. E, Purkyně University, Socialni pece 3316/12A, 40113, Usti nad Labem, Czech Republic.

Facial paralysis is a severe disease and presents a formidable treatment challenge. A wide variety of surgical procedures are available with limited evidence. Major risk factors of suboptimal recovery include the duration of paralysis as well as higher age. Read More

Acta Neurochir (Wien) 2019 Apr 13. Epub 2019 Apr 13.

Department of Neuroscience/Neurosurgery, Section of Neurosurgery, Uppsala University Hospital, Uppsala University, SE-751 85, Uppsala, Sweden.

Background: The probability of favorable outcome after traumatic brain injury (TBI) decreases with age. Elderly, ≥ 60 years, are an increasing part of our population. Recent studies have shown an increase of favorable outcome in elderly over time. Read More

Acta Neurochir (Wien) 2019 Apr 12. Epub 2019 Apr 12.

Department of Neurosurgery, University Hospital of Münster, Münster, Germany.

There is a distinct need for new and second-line therapies to delay or prevent local tumor regrowth after current standard of care therapy. Intracavitary radioimmunotherapy, in combination with radiotherapy, is discussed in the present review as a therapeutic strategy of high potential. We performed a systematic literature search following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA). Read More

Acta Neurochir (Wien) 2019 Apr 10. Epub 2019 Apr 10.

Department of Public Health and Medical Decision Making, Erasmus MC, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.

Background: There is an ongoing debate on the role of corticosteroids in the treatment of chronic subdural hematoma (CSDH). This study aims to evaluate the effectiveness of corticosteroids for the treatment of CSDH compared to surgery.

Method: A systematic search was performed in relevant databases up to January 2019 to identify RCTs or observational studies that compared at least two of three treatment modalities: the use of corticosteroids as a monotherapy (C), corticosteroids as an adjunct to surgery (CS), and surgery alone (S). Read More

Acta Neurochir (Wien) 2019 Apr 9. Epub 2019 Apr 9.

Department of Neurosurgery, Beijing Sanbo Brain Hospital, Capital Medical University, No. 50 Yikesong Rd, Haidian District, Beijing, 100093, China.

Serpentine aneurysms of the posterior cerebral artery (PCA) treated by the internal maxillary artery (IMA) bypass are rare. Here, the authors report the case of a 34-year-old male patient who presented with a half-year history of gradual severe headache and right-sided limb monoparesis and paresthesia lasting for 1 week. Preoperative angiograms showed a serpentine aneurysm in the left distal PCA, which was treated with internal maxillary artery-radial artery-posterior cerebral artery (IMA-RA-PCA) bypass followed by parent artery occlusion (PAO). Read More

Acta Neurochir (Wien) 2019 Apr 6. Epub 2019 Apr 6.

Departments of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo Chuo-ku, Kumamoto, 860-8556, Japan.

Radiation therapy is associated with the subsequent development of cerebral aneurysms; however, stereotactic radiosurgery (SRS)-associated aneurysm cases have not been well documented, with only 18 cases reported to date. We present a case of intracranial aneurysms with the rupture occurring 20 years after SRS for a growth hormone-producing pituitary adenoma. This is the first report of aneurysms diagnosed following transsphenoidal surgery and SRS for pituitary adenoma. Read More

Acta Neurochir (Wien) 2019 Apr 6. Epub 2019 Apr 6.

Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.

Objective: To assess the neuropsychological (NP) functioning and quality of life (QOL) before and 3 months after surgery on adults with Chiari I malformation (CMI).

Patients And Methods: All adult patients who had been diagnosed with CMI were invited to participate. Those who participated were assessed using a Hospital Anxiety and Depression scale (HAD) and NP examinations. Read More

Acta Neurochir (Wien) 2019 Apr 5. Epub 2019 Apr 5.

Department of Neurosurgery, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Frauenklinikstrasse10, 8091, Zurich, Switzerland.

Acta Neurochir (Wien) 2019 Apr 5. Epub 2019 Apr 5.

Department of Neurosurgery, University of Virginia, Charlottesville, VA, USA.

Background: For pineal tumors presenting with hydrocephalus, simultaneous endoscopic third ventriculostomy (ETV) and tumor biopsy is commonly used as the initial step in management. To analyze the restriction which the foramen of Monro poses to this procedure, one must start with a detailed description of the microsurgical anatomy of the foramen in living subjects. However, the orientation and shape of the foramen of Monro make this description difficult with conventional imaging techniques. Read More

Acta Neurochir (Wien) 2019 Apr 5. Epub 2019 Apr 5.

Service de Neurochirurgie, Hôpital d'Instruction des Armées Sainte Anne, HIA Sainte Anne - BP600, 83800, Toulon Cedex 9, France.

Background: Decompressive craniectomy is a surgical way to treat intracranial hypertension, by removing a large flap of skull bone.

Method: We report the case of a 48 years old right-handed man presenting an acute ischaemic stroke of all the right sylvian artery area, with rapid clinic deterioration then coma. Severe intracranial hypertension was confirmed by transcranial Doppler. Read More

Acta Neurochir (Wien) 2019 Apr 3. Epub 2019 Apr 3.

Department of Neurosurgery, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy.

Acta Neurochir (Wien) 2019 Apr 1. Epub 2019 Apr 1.

Department of Neurosurgery, University Hospital of Lausanne, Lausanne, Switzerland.

Background: The extreme lateral supracerebellar infratentorial (ELSI) approach was initially proposed to treat lesions of the posterolateral surface of the pons principally cavernomas. The versatility of the approach allowed its use for other pathologies like gliomas, aneurysms, epidermoids, and meningiomas.

Method: We describe here the ELSI approach along with its advantages and limits in comparison with other surgical approaches for the treatment of meningiomas of the petroclival region. Read More

Acta Neurochir (Wien) 2019 Apr 1. Epub 2019 Apr 1.

Department of Neurosurgery, University Hospital "Saint Ivan Rilski", "Acad. Ivan Geshov" №15, Sofia, Bulgaria.

Objectives: Epilepsy surgery is mainly cortical surgery and the precise definition of the epileptogenic zone on the complex cortical surface is of paramount importance. Stereoelectroencephalography (SEEG) may delineate the epileptogenic zone even in cases of non-lesional epilepsy. The aim of our study was to present a technique of 3D neuronavigation based on the brain surface and SEEG electrodes reconstructions using FSL and 3DSlicer software. Read More

Acta Neurochir (Wien) 2019 Mar 29. Epub 2019 Mar 29.

Neurosurgery Division, Department of Clinical Neurosciences, Faculty of Medicine, Geneva University Hospitals, Geneva, Switzerland.

Background: Differences in the postgraduate training programs of neurosurgical residents are suspected throughout Europe. The influence of working hour restrictions by the European Working Time Directive (WTD) 2003/88/EC on the number of surgical procedures remains unclear. We designed a survey to collect information on the number of surgical procedures, performed by European neurosurgical trainees during residency. Read More

Acta Neurochir (Wien) 2019 Mar 29. Epub 2019 Mar 29.

Department of Neurosurgery, Charité Universitätsmedizin Berlin, Berlin, Germany.

Objective: Navigated transcranial magnetic stimulation (nTMS) has found widespread usage across many clinical centers as part of their surgical planning routines. NTMS offers a non-invasive approach to delineation of the motor cortex, in which the region is outlined through electromagnetic stimulation and electromyographic recordings of target muscles. Several neurophysiological parameters such as the motor evoked potential (MEP) and its derivatives, the resting motor threshold (RMT) and motor latency, are collected. Read More

Acta Neurochir (Wien) 2019 Mar 29. Epub 2019 Mar 29.

Department of Neurosurgery, Sahlgrenska University Hospital, Blå Stråket 5, 413 45, Gothenburg, Sweden.

Acta Neurochir (Wien) 2019 Mar 28. Epub 2019 Mar 28.

Department of Neurosurgery, University Neurosurgical Center Holland (UNCH), Leiden University Medical Center & Haaglanden Medical Center & Haga Teaching Hospital, Leiden/The Hague, The Netherlands.

Background: The decision whether to operate or not in patients with a traumatic acute subdural hematoma (t-ASDH) can, in many cases, be a neurosurgical dilemma. There is a general conception that operating on severe cases leads to the survival of severely disabled patients and is associated with relatively high medical costs. There is however little information on the quality of life of patients after operation for t-ASDH, let alone on the cost-effectiveness. Read More

Acta Neurochir (Wien) 2019 Mar 26. Epub 2019 Mar 26.

Department of Neurosurgery, Rigshospitalet University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark.

Background: An increasing incidence of chronic subdural hematoma (CSDH) and an unchanging high recurrence rate of 10-20% call for individualized treatment. The aim of this study was to establish individualized prediction models for the risk of recurrence treating death as a competing risk.

Methods: A retrospective national cohort of unilateral CSDH was included for analysis. Read More

Acta Neurochir (Wien) 2019 Mar 26. Epub 2019 Mar 26.

Department of Neurosurgery, University Hospital, LMU Munich, Marchioninistrasse 15, 81377, Munich, Germany.

Background: Diffusion-weighted magnetic resonance imaging (MRI-DWI) is the modality of choice for detecting intracranial abscesses; however, it is unclear whether prior brain surgery has an influence on its diagnostic value. Thus, we assessed the robustness of MRI-DWI and determination of an ADC cutoff value for detecting intracranial abscesses in patients who underwent brain surgery.

Methods: We retrospectively evaluated 19 patients prior to surgery for postoperative supratentorial parenchymal abscesses by means of MRI-DWI. Read More

Acta Neurochir (Wien) 2019 Mar 25. Epub 2019 Mar 25.

Department of Critical Care Medicine, Ghent University Hospital, Ghent, Belgium.

Intra-abdominal pressure (IAP) is a physiological parameter that has gained considerable attention during the last few decades. The incidence of complications arising from increased IAP, known as intra-abdominal hypertension (IAH) or abdominal compartment syndrome in critically ill patients, is high and its impact is significant. The effects of IAP in neurological conditions and during surgical procedures are largely unexplored. Read More

Acta Neurochir (Wien) 2019 Mar 25. Epub 2019 Mar 25.

Department of Neurosurgery, Hospital of the German Federal Armed Forces, Lange Straße 38, 26655, Westerstede, Germany.

Background: Percutaneous trigeminal nerve rhizotomy is usually performed by free-handed puncture of the foramen ovale under radiographic control with the patient kept semiconscious. The procedure has thus been reported to be highly uncomfortable for both the patient and surgeon. To our knowledge, this is the first description of a technique that includes precise navigated, CT-guided puncture of the foramen with the patient in general anesthesia and confirmation of needle placement by intraoperative CT. Read More

Acta Neurochir (Wien) 2019 Mar 21. Epub 2019 Mar 21.

Department of Neurosurgery, College of Medicine, Seoul St Mary's Hospital, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 137-701, Republic of Korea.

Background: Large intracranial aneurysm is challenging for both surgical and endovascular treatment. High recurrence and retreatment rates are still limitations for endovascular treatment. Analysing risk factors of recurrence after endovascular treatment can be useful for planning future treatment strategies. Read More

Acta Neurochir (Wien) 2019 Mar 20. Epub 2019 Mar 20.

Unit of Oncological Neurosurgery, Humanitas Clinical and Research Center - IRCCS, Rozzano (MI), Italy.

Background: Stereotactic biopsy is consistently employed to characterize cerebral lesions in patients who are not suitable for microsurgical resection. In the past years, technical improvement and neuroimaging advancements contributed to increase the diagnostic yield, the safety, and the application of this procedure. Currently, in addition to histological diagnosis, the molecular analysis is considered essential in the diagnostic process to properly select therapeutic and prognostic algorithms in a personalized approach. Read More

Acta Neurochir (Wien) 2019 Mar 18. Epub 2019 Mar 18.

Department of Neurosurgery, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.

Background: While periventricular anastomosis, a unique abnormal vasculature in moyamoya disease, has been studied in relation to intracranial hemorrhage, no study has addressed its change after bypass surgery. The authors sought to test whether direct bypass surgery could restore normal periventricular vasculature.

Methods: Patients who had undergone direct bypass surgery for moyamoya disease at a single institution were eligible for the study. Read More

Acta Neurochir (Wien) 2019 Mar 16. Epub 2019 Mar 16.

Department of Neurosurgery, San Giovanni Addolorata Hospital, Via Amba Aradam 9, 00184, Rome, Italy.

Full-endoscopic transforaminal lumbar discectomy is based on a puncture technique using a guide needle to reach the target area of the foramen via a percutaneous posterolateral/lateral approach. It may correlate with specific approach-related complications, as exiting nerve root injury. We report the first case of pseudoaneurysm of the lumbar segmental artery secondary to a transforaminal full-endoscopic surgery in the treatment of a lumbar herniated disc. Read More

Acta Neurochir (Wien) 2019 Mar 16. Epub 2019 Mar 16.

Departmesnt of Neurosurgery, University Medical Center Utrecht, Internal Postage G03.124, PO-box 85500, 3584 CX, Utrecht, The Netherlands.

Object: In the past, the accuracy of surface matching has been shown to be disappointing. We aimed to determine whether this had improved over the years by assessing application accuracy of current navigation systems, using either surface matching or point-pair matching.

Methods: Eleven patients, scheduled for intracranial surgery, were included in this study after a power analysis had shown this small number to be sufficient. Read More

Acta Neurochir (Wien) 2019 Mar 15. Epub 2019 Mar 15.

Klinik für Neurochirurgie, Universitätsklinikum des Saarlandes, 66421, Homburg, Saar, Germany.

Background: The use of five-aminolevulinic acid (5-ALA) in the staining of malignant glioma cells has significantly improved intraoperative radicality in the resection of gliomas in the last decade. Currently, there is no comparable selective fluorescent substance available for meningiomas. There is however a demand for intraoperative fluorescent identification of, e. Read More

Acta Neurochir (Wien) 2019 Mar 15. Epub 2019 Mar 15.

Department of Orthopedic Trauma and Hand Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, 530021, People's Republic of China.

Background: Traumatic brachial plexus injuries are severe lesions, and the incidence of these injuries has been increasing in recent years.

Methods: The clinical data of 510 operated patients with brachial plexus injury recruited from 74 hospitals in Guangxi from 2004 to 2016 were retrospectively studied.

Results: Our study included 447 males and 63 females, with an average age of 29. Read More

Acta Neurochir (Wien) 2019 Mar 15. Epub 2019 Mar 15.

Department of Neurosurgery, Hannover Medical School, Carl-Neuberg Str. 1, 30625, Hannover, Germany.

Acta Neurochir (Wien) 2019 Mar 15. Epub 2019 Mar 15.

Brain Physics Laboratory, Division of Neurosurgery, Dept of Clinical Neurosciences, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK.

Background: Monitoring cerebrovascular reactivity in adult traumatic brain injury (TBI) has been linked to global patient outcome. Three intra-cranial pressure (ICP)-derived indices have been described. It is unknown which index is superior for outcome association in TBI outside previous single-center evaluations. Read More

Acta Neurochir (Wien) 2019 Mar 15. Epub 2019 Mar 15.

Department of Neurosurgery, Medical Center, Georg August University of Göttingen, Göttingen, Germany.

Background: Brain metastases (BMs) are the most frequent malignancy of the central nervous system. Previous research suggested that some metastases show infiltrative behavior rather than sharp demarcation. We hypothesized that three magnetic resonance (MR) imaging parameters-(a) tumor size, (b) extent of peritumoral edema, and (c) presence of multiple BMs-are predictors of cellular invasion beyond the surgically identifiable tumor margins. Read More

Acta Neurochir (Wien) 2019 Mar 15. Epub 2019 Mar 15.

Department of Neuroscience, Neurosurgery, Uppsala University, Uppsala University Hospital, SE-751 85, Uppsala, Sweden.

Background: Supratentorial intracerebral haemorrhage (ICH) carries an excessive mortality and morbidity. Although surgical ICH treatment can be life-saving, the indications for surgery in larger cohorts of ICH patients are controversial and not well defined. We hypothesised that surgical indications vary substantially among neurosurgical centres in Sweden. Read More

Acta Neurochir (Wien) 2019 Mar 12. Epub 2019 Mar 12.

Department of Neurosurgery, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan.

Background: Oculomotor cistern extension (OMCE) of pituitary adenoma through the oculomotor triangle may be one of the major characteristics of multi-lobulated adenoma. The OMCE may be hard to remove only through the endonasal approach.

Method: We applied the simultaneous combined supra-infrasellar approach to remove pituitary adenoma with relatively large OMCE. Read More

Acta Neurochir (Wien) 2019 Mar 12. Epub 2019 Mar 12.

Department of Neurosurgery, University Hospital KU Leuven, Herestraat 49, B-3000, Leuven, Belgium.

Background: The aim of this retrospective study was to investigate and compare the outcome after surgery in patients with a supratentorial solitary metastasis (SSM) and an infratentorial solitary metastasis (ISM). A worse prognosis has been reported in ISM.

Methods: Fifty-two patients with a newly diagnosed solitary brain metastasis on MRI were included to identify risk factors affecting the outcome. Read More

Acta Neurochir (Wien) 2019 Mar 11. Epub 2019 Mar 11.

Department of Clinical Neurosciences, Division of Neurosurgery, Geneva University Hospitals, 1205, Genève, Switzerland.

Background: Posterior fossa meningiomas (PFMs) often represent surgical challenges due to their proximity to neurovascular structures. Factors predicting the extent of resection (EOR), overall survival (OS), and progression-free survival (PFS) were identified and integrated in a prediction tool to offer evidence-based personalized therapeutic strategies.

Methods: All meningiomas managed surgically from 1990 to 2010 from a single-center were reviewed. Read More

Acta Neurochir (Wien) 2019 Mar 9. Epub 2019 Mar 9.

Clinical Neurophysiology Department, National Institute of Neurology and Neurosurgery of Mexico, Av. Insurgentes Sur 3877, Col. La Fama, Tlalpan, 14269, Mexico City, Mexico.

Background: Spreading depolarization (SD) is a fundamental pathophysiological mechanism of both pannecrotic and selective neuronal lesions following deprivation of energy. SD with brain injury has been reported including in one patient during an intracranial operation. However, the incidence of SDs in operative resections is unknown. Read More

Acta Neurochir (Wien) 2019 Apr 8;161(4):635-642. Epub 2019 Mar 8.

Department of Clinical Sciences, Neurosurgery, Skane University Hospital, Lund, Sweden.

Background: Continuous monitoring of intracranial pressure (ICP) was introduced in the 1950s. For correct ICP recordings, the zero-reference point for the external pressure gauge must be placed next to a head anatomical structure. We evaluated different anatomical points as zero reference for the ICP device at different head positions and their relation to brain centre (BC), foramen of Monro (Monro), and brain surface. Read More

Acta Neurochir (Wien) 2019 Apr 4;161(4):657-661. Epub 2019 Mar 4.

Department of Neurosurgery, Kushiro Rosai Hospital, 13-23, Nakazono-cho, Kushiro, Hokkaido, Japan.

Background: Sacroiliac joint (SIJ)-related pain is associated with low back- and buttock pain and the SIJ score is diagnostically useful because it helps to differentiate between SIJ-related pain and pain due to other factors such as lumbar disc herniation and lumbar spinal canal stenosis. Middle cluneal nerve (MCN) entrapment (MCN-E) can produce pain involving the lower back and buttocks. Therefore, the origin of the pain must be identified. Read More

Acta Neurochir (Wien) 2019 Apr 4;161(4):739-743. Epub 2019 Mar 4.

Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.

Background: Jugular foramen tumors, particularly those that are triple dumbbell-shaped with intracranial, intraforaminal, and extracranial extensions, are difficult to access surgically. However, advances in neuroimaging, neuromonitoring, and skull base surgery have enabled their safe resection with lower rates of morbidity and mortality.

Method: We share our experience with the surgical technique for the management of triple dumbbell-shaped jugular foramen schwannomas. Read More

Acta Neurochir (Wien) 2019 Mar 1. Epub 2019 Mar 1.

Division of Breast Surgery, Department of Women's and Children's Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli, 8, 00168, Rome, Italy.

Acta Neurochir (Wien) 2019 Feb 28. Epub 2019 Feb 28.

Skane University Hospital, Lund, Sweden.

Acta Neurochir (Wien) 2019 Apr;161(4):737

Department of Neurological Surgery, School of Medicine, University of Colorado, 12631 E. 17th Ave., C307, Aurora, CO, 80045, USA.

Result is incorrect. Read More

Acta Neurochir (Wien) 2019 Apr 26;161(4):719-720. Epub 2019 Feb 26.

Department of Neurosurgery, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland.