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World Neurosurgery

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https://www.readbyqxmd.com/read/29339323/mechanical-thrombectomy-of-acute-middle-cerebral-artery-occlusion-using-trans-anterior-communicating-artery-approach
#1
Krishna Amuluru, Charles E Romero, Logan Pyle, Mohammad El-Ghanem, Fawaz Al-Mufti
BACKGROUND: A cross-circulation technique involves gaining access to a cerebral vessel through a patent anterior or posterior communicating artery. This technique may be utilized in patients with emergent large vessel occlusions and an unfavorable direct route to the occlusion. While few previous reports have demonstrated successful cross-circulation technique for treatment of emergent large vessel occlusions, we present the first two cases of trans-anterior communicating artery stent-retriever thrombectomy...
January 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29339322/endoscopic-endonasal-craniofacial-surgery-for-recurrent-skull-base-meningiomas-involving-the-pterygopalatine-fossa-the-infratemporal-fossa-the-orbit-and-the-paranasal-sinus
#2
Masahiro Shin, Masaaki Shojima, Kenji Kondo, Hirotaka Hasegawa, Shunya Hanakita, Akihiro Ito, Taichi Kin, Nobuhito Saito
OBJECT: Skull base meningiomas carry a non-negligible risk of recurrence. In particular, those arising from the sphenoid wings or middle cranial fossa penetrate into extracranial regions, uncommonly showing massive expansion into the craniofacial regions on recurrence. The role of endoscopic endonasal surgery for those intractable lesions remains unclear. METHODS: We performed endoscopic endonasal craniofacial surgery for 8 recurrent meningiomas invading into the pterygopalatine fossa, infratemporal fossa, nasopharynx, paranasal sinus, or orbit, comprising 2 meningothelial and 1 fibrous meningiomas (WHO grade I), 3 atypical and 1 clear cell meningiomas (grade II), and 1 anaplastic meningioma (grade III)...
January 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29339321/internal-thoracic-artery-to-middle-cerebral-artery-bypass-surgery-cadaveric-feasibility-study
#3
Stephen Monteith, Oded Goren, Ragu Sampath, Eric Lehr, Akshal Patel, Paul J Choi, Joe Iwanaga, Marios Loukas, R Shane Tubbs
BACKGROUND: A few options of extracranial donor vessels exist for utilization in intracranial vascular bypass procedures. To our knowledge, the use of an internal thoracic artery for cerebral revascularization has not been studied previously. Hence, this cadaveric feasibility study was performed. METHODS: The internal thoracic artery was dissected in five adult cadaveric specimens. The proximal diameter, distal diameter, and the length of the vessel were measured and recorded...
January 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29339320/primary-obstruction-of-the-foramen-of-luschka-anatomy-histology-and-clinical-significance
#4
Laszlo Barany, Gabor Baksa, Patonay Lajos, Gergely Racz, Oliver Ganslandt, Michael Buchfelder, Peter Kurucz
BACKGROUND: The foramen of Luschka is a natural aperture between the fourth ventricle and the subarachnoid space at the cerebellopontine angle (CPA). Membranous closure of this foramen is referred to as primary obstruction. The available information about this variant and its role in the development of the cysts of the posterior fossa are contradictory in the literature. METHODS: Sixty-one formalin-fixed human brains (122 foramina) were involved in this study. Both the macroscopic and the histological features of the obstructed foramina were examined...
January 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29337171/is-early-tracheostomy-better-for-severe-traumatic-brain-injury-a-meta-analysis
#5
Qin Lu, Yonglin Xie, Xunchen Qi, Xinwei Li, Shuxu Yang, Yirong Wang
OBJECTIVE: Tracheotomy have been proven to be benefit for the patients requiring prolonged mechanical ventilation. However, whether early tracheotomy (less than 10 days) could also improve the outcome of severe traumatic brain injury (TBI) patient (GCS≤8) remains controversial. The aim of this study was trying to clarify this question. METHODS: We searched four databases (PubMed, Web of Science, Elsevier and Cochrane Library) for articles comparing the outcome of early tracheostomy with late tracheostomy or prolonged intubation on the severe TBI patients...
January 11, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29337170/virtual-cerebral-aneurysm-clipping-with-real-time-haptic-force-feedback-in-neurosurgical-education
#6
Matthias Gmeiner, Johannes Dirnberger, Wolfgang Fenz, Maria Gollwitzer, Gabriele Wurm, Johannes Trenkler, Andreas Gruber
OBJECTIVE: Realistic, safe and efficient modalities for simulation-based training are highly warranted to enhance the quality of surgical education and should be incorporated in resident training. The aim of this study was to develop a patient-specific virtual cerebral aneurysm-clipping simulator with haptic force-feedback and real-time deformation of the aneurysm and vessels. METHODS: A prototype simulator was developed from 2012-2016. Evaluation of virtual clipping by blood flow simulation was integrated in this software and the prototype was evaluated by 18 neurosurgeons...
January 11, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29337169/the-prognostic-role-of-gender-and-mgmt-methylation-status-in-glioblastoma-patients-the-female-power
#7
Enrico Franceschi, Alicia Tosoni, Santino Minichillo, Roberta Depenni, Alexandro Paccapelo, Stefania Bartolini, Maria Michiara, Giacomo Pavesi, Benedetta Urbini, Girolamo Crisi, Michele A Cavallo, Luigino Tosatto, Claudio Dazzi, Claudia Biasini, Giuseppe Pasini, Damiano Balestrini, Francesca Zanelli, Vania Ramponi, Antonio Fioravanti, Ermanno Giombelli, Dario De Biase, Agostino Baruzzi, Alba A Brandes
BACKGROUND: Clinical and molecular factors are essential to define prognosis in glioblastoma (GBM) patients. MGMT methylation status, age, Karnofsky performance status (KPS) and extent of surgical resection are the most relevant prognostic factors. The role of gender in predicting patients prognosis has been investigated showing a slight survival advantage for female patients. METHODS: We performed a prospective evaluation from a registry called the Project of Emilia Romagna on Neuro-Oncology (PERNO) about prognostic factors in GBM patients who received standard treatment...
January 11, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29337168/aggressive-resection-of-congenital-lumbosacral-lipomas-in-adults-indications-techniques-and-outcomes-in-122-patients
#8
S C Bai, B Z Tao, L K Wang, X G Yu, B N Xu, A J Shang
OBJECTIVE: The authors reviewed the treatment of adult patients with congenital intraspinal lipomas with total/near-total resection and discussed their preoperative characteristics, prognostic factors and surgical outcomes. METHODS: Medical records of 122 adult patients with congenital lumbosacral lipomas undergoing total/near-total resection were systematically analyzed. The cohort was subdivided into three groups depending on symptom onset age: Group 1 (≤5 years, n = 40), Group 2 (>5 years but <18 years, n = 33), and Group 3 (>18 years, n = 49)...
January 11, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29337167/prognostic-factors-for-the-survival-outcome-of-high-grade-multicentric-glioma
#9
Tianwei Wang, Xiaodong Niu, Ting Gao, Lingling Zhao, Jiaoming Li, Youjun Gan, Yanhui Liu, Qing Mao
OBJECTIVE: The purpose of this study was to perform an survival analysis of patients with high-grade multicentric gliomas and to assess the influence of various prognostic factors on overall survival. METHODS: A literature search on PubMed and Web of Science was performed for literature in English published from 1880 to October 2017. Detailed information including demographics, clinical characteristics, treatments, critical events, and time to events for survival analysis were extracted from the included articles...
January 11, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29331747/dural-based-cavernous-malformation-at-the-cerebral-convexity-report-of-two-pediatric-patients
#10
Guichen Li, Xuan Zhai, Yang Zhang, Ping Liang, Xuanxuan Wu, Kun Hou
BACKGROUND: Intracranial (cavernous malformations) CMs are usually located at the cerebral parenchyma, dural-based CMs outside the middle fossa are rarely reported. To our knowledge, dural-based CMs located at the cerebral convexity are even rarer that only two pediatric cases were ever reported. In this report, we present two extremely rare cases of dural-based CMs at the cerebral convexity in pediatric patients. The clinical course, radiological and pathological features, treatment, and follow-up are described...
January 10, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29331746/canadian-neurosurgery-educators-views-on-stereotactic-radiosurgery-in-residency-training
#11
Nardin Samuel, Justine Philteos, Naif M Alotaibi, Christopher Ahuja, Alireza Mansouri, Abhaya V Kulkarni
OBJECTIVE: Despite the increasing prominence of stereotactic radiosurgery (SRS) in treating intracranial and spinal pathologies, there is currently a dearth of exposure to this modality in neurosurgical residency. To address this gap, the aim of this study is to assess neurosurgery educators' views regarding the current state of SRS exposure, and to identify potential approaches to improve residency education in this domain. METHODS: Qualitative thematic analysis and constructivist grounded theory methodology were employed...
January 10, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29331745/tumefactive-multiple-sclerosis-masquerading-as-high-grade-glioma
#12
Michelle Lin, Patrick Reid, Joshua Bakhsheshian
Tumefactive multiple sclerosis is a demyelinating lesion that can radiographically mimic high-grade gliomas during acute episodes, impacting clinical decision making. Delay in appropriate diagnoses may result in unnecessary invasive resections. The following case is a patient who presented with unilateral weakness and radiologic findings concerning for a high grade glioma. Peripheral studies were equivocal. The decision was made to proceed with a stereotactic biopsy, yielding a definitive diagnosis of tumefactive demyelinating lesion (TDL)...
January 10, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29330080/use-of-a-pulsed-radiofrequency-energy-device-peak-plasmablade%C3%A2-in-neuromodulation-implant-revisions
#13
I Ughratdar, K A Kawsar, R Mitchell, R Selway, K Ashkan
BACKGROUND: Battery replacement or revision surgery for neuromodulation implants is conventionally performed using sharp dissection. Meticulous dissection within thick scar tissue is vital to avoid damage to surrounding lead(s) which could result in more extensive revision surgery. Traditional electrosurgery devices are contraindicated as the emitted energy can be transferred to the hardware resulting in implant or tissue damage with severe consequent complications. OBJECTIVE: We report our experience and potential applications of a novel, pulsed monopolar radiofrequency energy device (PEAK PlasmaBlade™, Medtronic plc) which facilitates dissection around implants without the risk of damaging or transmitting energy through the system...
January 9, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29330079/impact-of-platelet-transfusion-on-intracerebral-hemorrhage-ich-in-patients-on-antiplatelet-therapy-an-analysis-based-on-ich-score
#14
Gregory D Arnone, Prateek Kumar, Matt C Wonais, Darian R Esfahani, Sally A Campbell-Lee, Fady T Charbel, Sepideh Amin-Hanjani, Ali Alaraj, Andreea Seicean, Ankit I Mehta
OBJECTIVE: Platelet transfusions for intracerebral hemorrhage (ICH) patients on antiplatelet therapy (APT) remain controversial. Diverging past research and differences in platelet preparation warrant further investigation of this topic. In this study, the association between platelet transfusion and clinical outcomes of ICH is investigated in patients matched by ICH score, a validated predictor of mortality. METHODS: A consecutive review of all patients from 2012 to 2015 with non-traumatic ICH was performed...
January 9, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29330078/intraoperative-flow-cytometry-enables-the-differentiation-of-primary-central-nervous-system-lymphoma-from-glioblastoma
#15
Shunichi Koriyama, Masayuki Nitta, Takahiro Shioyama, Takashi Komori, Takashi Maruyama, Takakazu Kawamata, Yoshihiro Muragaki
OBJECTIVE: Accurate preoperative and intraoperative differentiation between primary central nervous system lymphoma (PCNSL) and glioblastoma (GBM) is sometimes difficult. Distinguishing between these tumors during surgery is important because surgical treatment is different between the two tumors. In this study, we established a new method of intraoperative differentiation between PCNSL and GBM using intraoperative flow cytometry (iFC), and we retrospectively tested whether iFC was useful for the intraoperative diagnosis of PCNSL and GBM...
January 9, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29330077/blood-ethanol-levels-are-not-related-to-coagulation-changes-as-measured-by-thromboelastography-in-traumatic-brain-injury-patients
#16
Abigail J Rao, Amber Laurie Lin, Cole Hilliard, Rongwei Fu, Tori Lennox, Ronald R Barbosa, Susan E Rowell
No abstract text is available yet for this article.
January 9, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29330076/frontoethmoidal-schwannoma-with-exertional-cerebrospinal-fluid-rhinorrhea-a-case-report-and-review-of-the-literature
#17
Yuichiro Yoneoka, Katsuhiko Akiyama, Yasuhiro Seki, Go Hasegawa, Akiyoshi Kakita
BACKGROUND: Frontoethmoidal schwannomas are rare. No case manifesting exertional cerebrospinal fluid (CSF) rhinorrhea has ever been reported to the best of our knowledge. CASE DESCRIPTION: In this report, we describe an extremely rare case of frontoethmoidal schwannoma extending through the olfactory groove (OG) with exertional CSF rhinorrhea as the initial symptom. A 50-year-old woman was presented to our clinic for frequent nasal discharge on exertion. A postcontrast computed tomographic scan demonstrated heterogeneously enhanced tumor from the anterior cranial fossa to the anterior ethmoid sinus...
January 9, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29325964/spontaneous-repeated-disappearance-and-recurrence-of-multiple-spinal-intradural-arachnoid-cysts-in-a-child
#18
Kenyu Hayashi, Keishi Makino, Takashi Nakagawa, Shigetoshi Yano
BACKGROUND: Spinal intradural arachnoid cysts are rare in the pediatric population. We present a very rare case of intradural spinal arachnoid cysts that spontaneously and repeatedly disappeared and reoccurred. CASE DESCRIPTION: A 2-year-and-8-months-old boy presenting with lower extremity weakness was found to have spinal intradural arachnoid cysts in cervical and thoracolumbar regions at separate times. Although spontaneous disappearance of both lesions was observed, surgical treatment was finally performed for the symptomatic recurrent thoracolumbar lesion...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29325963/surgical-anatomy-of-the-eustachian-tube-for-endoscopic-transnasal-skull-base-surgery-a-cadaveric-and-radiological-study
#19
Noritaka Komune, Satoshi Matsuo, Koichi Miki, Yojiro Akagi, Ryota Kurogi, Koji Iihara, Takashi Nakagawa
OBJECTIVE: The endoscopic endonasal approach to the anatomically complex lateral skull base presents technical challenges. The use of the Eustachian tube as a landmark to identify the petrous internal carotid artery has recently been reported, and this study aims to define the anatomical relationship between the Eustachian tube and its surrounding structures using cadaveric dissection and radiologic analysis. METHODS: To clarify the relationship of the Eustachian tube with its surrounding structures, we performed endoscopic and microscopic dissection of four adult cadaveric heads, and analyzed computed topography scans from 20 patients...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29325962/systematic-review-of-factors-influencing-surgical-performance-practical-recommendations-for-microsurgical-procedures-in-neurosurgery
#20
Evgenii Belykh, Naomi R Onaka, Iraklii T Abramov, Kaan Yağmurlu, Vadim A Byvaltsev, Robert F Spetzler, Peter Nakaji, Mark C Preul
BACKGROUND: Microneurosurgical techniques involve complex manual skills and hand-eye coordination that require substantial training. Many factors affect microneurosurgical skills. The goal of this study was to use a systematic evidence-based approach to analyze the quality of evidence for intrinsic and extrinsic factors that influence microneurosurgical performance and to make weighted practical recommendations. MATERIALS AND METHODS: A literature search of factors that may impact microsurgical performance was conducted using PubMed and Embase...
January 8, 2018: World Neurosurgery
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