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Journal of Neurosurgery

Frederick L Hitti, Kerry A Vaughan, Ashwin G Ramayya, Brendan J McShane, Gordon H Baltuch
OBJECTIVE: Deep brain stimulation (DBS) has revolutionized the treatment of neurological disease, but its therapeutic efficacy is limited by the lifetime of the implantable pulse generator (IPG) batteries. At the end of the battery life, IPG replacement surgery is required. New IPGs with rechargeable batteries (RC-IPGs) have recently been introduced and allow for decreased reoperation rates for IPG replacements. The authors aimed to examine the merits and limitations of these devices...
September 28, 2018: Journal of Neurosurgery
Jian Guan, Michael Karsy, Andrea A Brock, William T Couldwell, John R W Kestle, Randy L Jensen, Andrew T Dailey, Erica F Bisson, Richard H Schmidt
OBJECTIVE: Overlapping surgery remains a controversial topic in the medical community. Although numerous studies have examined the safety profile of overlapping operations, there are few data on its financial impact. The authors assessed direct hospital costs associated with neurosurgical operations during periods before and after a more stringent overlapping surgery policy was implemented. METHODS: The authors retrospectively reviewed the records of nonemergency neurosurgical operations that took place during the periods from June 1, 2014, to October 31, 2014 (pre-policy change), and from June 1, 2016, to October 31, 2016 (post-policy change), by any of the 4 senior neurosurgeons authorized to perform overlapping cases during both periods...
September 28, 2018: Journal of Neurosurgery
José Pedro Lavrador, Shami Acharya, Anastasios Giamouriadis, Francesco Vergani, Keyoumars Ashkan, Ranjeev Bhangoo
No abstract text is available yet for this article.
September 28, 2018: Journal of Neurosurgery
Manjul Tripathi
No abstract text is available yet for this article.
September 28, 2018: Journal of Neurosurgery
Xin Zhang, Tamrakar Karuna, Zhi-Qiang Yao, Chuan-Zhi Duan, Xue-Min Wang, Shun-Ting Jiang, Xi-Feng Li, Jia-He Yin, Xu-Ying He, Shen-Quan Guo, Yun-Chang Chen, Wen-Chao Liu, Ran Li, Hai-Yan Fan
OBJECTIVE: Among clinical and morphological criteria, hemodynamics is the main predictor of aneurysm growth and rupture. This study aimed to identify which hemodynamic parameter in the parent artery could independently predict the rupture of anterior communicating artery (ACoA) aneurysms by using multivariate logistic regression and two-piecewise linear regression models. An additional objective was to look for a more simplified and convenient alternative to the widely used computational fluid dynamics (CFD) techniques to detect wall shear stress (WSS) as a screening tool for predicting the risk of aneurysm rupture during the follow-up of patients who did not undergo embolization or surgery...
September 28, 2018: Journal of Neurosurgery
Aziz S Alali, Nancy Temkin, Jason Barber, Jim Pridgeon, Kelley Chaddock, Sureyya Dikmen, Peter Hendrickson, Walter Videtta, Silvia Lujan, Gustavo Petroni, Nahuel Guadagnoli, Zulma Urbina, Randall M Chesnut
OBJECTIVE: While existing guidelines support the treatment of intracranial hypertension in severe traumatic brain injury (TBI), it is unclear when to suspect and initiate treatment for high intracranial pressure (ICP). The objective of this study was to derive a clinical decision rule that accurately predicts intracranial hypertension. METHODS: Using Delphi methods, the authors identified a set of potential predictors of intracranial hypertension and a clinical decision rule a priori by consensus among a group of 43 neurosurgeons and intensivists who have extensive experience managing severe TBI without ICP monitoring...
September 28, 2018: Journal of Neurosurgery
Guglielmo Puglisi, Tommaso Sciortino, Marco Rossi, Antonella Leonetti, Luca Fornia, Marco Conti Nibali, Alessandra Casarotti, Federico Pessina, Marco Riva, Gabriella Cerri, Lorenzo Bello
OBJECTIVE: The goal of surgery for gliomas is maximal tumor removal while preserving the patient's full functional integrity. At present during frontal tumor removal, this goal is mostly achieved, although the risk of impairing the executive functions (EFs), and thus the quality of life, remains significant. The authors investigated the accuracy of an intraoperative version of the Stroop task (iST), adapted for intraoperative mapping, to detect EF-related brain sites by evaluating the impact of the iST brain mapping on preserving functional integrity following a maximal tumor resection...
September 28, 2018: Journal of Neurosurgery
Joshua A Hanna, Tyler Scullen, Lora Kahn, Mansour Mathkour, Edna E Gouveia, Juanita Garces, Leah M Evans, Georgia Lea, David J Houghton, Erin Biro, Cuong J Bui, Olawale A Sulaiman, Roger D Smith
OBJECTIVE: Deep brain stimulation (DBS) is the procedure of choice for Parkinson's disease (PD). It has been used in PD patients younger than 70 years because of better perceived intra- and postoperative outcomes than in patients 70 years or older. However, previous studies with limited follow-up have demonstrated benefits associated with the treatment of elderly patients. This study aims to evaluate the long-term outcomes in elderly PD patients treated with DBS in comparison with a younger population...
September 28, 2018: Journal of Neurosurgery
Andrew J Fabiano
No abstract text is available yet for this article.
September 28, 2018: Journal of Neurosurgery
Yasuo Aihara, Sinichiro Watanabe, Kosaku Amano, Kana Komatsu, Kentaro Chiba, Kosuke Imanaka, Tomokatsu Hori, Takashi Ohba, Hitoshi Dairoku, Yoshikazu Okada, Osami Kubo, Takakazu Kawamata
OBJECTIVE: Placental alkaline phosphatase (PLAP) in CSF can provide a very high diagnostic value in cases of intracranial germ cell tumors (GCTs), especially in pure germinomas, to the level of not requiring histological confirmation. Unlike other tumor markers, reliable data analysis with respect to the diagnostic value of PLAP serum or CSF levels has not been available until now. This is the first systematic and comprehensive study examining the diagnostic value of CSF PLAP in patients with intracranial GCTs...
September 28, 2018: Journal of Neurosurgery
Bradley A Gross, Ashutosh P Jadhav, Brian T Jankowitz, Tudor G Jovin
No abstract text is available yet for this article.
September 21, 2018: Journal of Neurosurgery
Shiro Horisawa, Toshio Yamaguchi, Keiichi Abe, Hiroki Hori, Masatake Sumi, Yoshiyuki Konishi, Takaomi Taira
Musician's dystonia (MD) is a type of focal hand dystonia that develops only while playing musical instruments and interferes with skilled and fine movements. Lesioning of the ventro-oral (Vo) nucleus of the thalamus (Vo-thalamotomy) using radiofrequency can cause dramatic improvement in MD symptoms. Focused ultrasound (FUS) can make intracranial focal lesions without an incision. The authors used MRI-guided FUS (MRgFUS) to create a lesion on the Vo nucleus to treat a patient with MD. Tubiana's MD scale (TMDS) was used to evaluate the condition of musical play ranging from 1 to 5 (1: worst, 5: best)...
September 21, 2018: Journal of Neurosurgery
Whitney E Muhlestein, Dallin S Akagi, Amy R McManus, Lola B Chambless
OBJECTIVE: Efficient allocation of resources in the healthcare system enables providers to care for more and needier patients. Identifying drivers of total charges for transsphenoidal surgery (TSS) for pituitary tumors, which are poorly understood, represents an opportunity for neurosurgeons to reduce waste and provide higher-quality care for their patients. In this study the authors used a large, national database to build machine learning (ML) ensembles that directly predict total charges in this patient population...
September 21, 2018: Journal of Neurosurgery
Hidetoshi Matsukawa, Hiroyasu Kamiyama, Yu Kinoshita, Norihiro Saito, Yuto Hatano, Takanori Miyazaki, Nakao Ota, Kosumo Noda, Takaharu Shonai, Osamu Takahashi, Sadahisa Tokuda, Rokuya Tanikawa
OBJECTIVE: It is well known that larger aneurysm size is a risk factor for poor outcome after surgical treatment of unruptured saccular intracranial aneurysms (USIAs). However, the authors have occasionally observed poor outcome in the surgical treatment of small USIAs and hypothesized that size ratio has a negative impact on outcome. The aim of this paper was to investigate the influence of size ratio on outcome in the surgical treatment of USIAs. METHODS: Prospectively collected clinical and radiological data of 683 consecutive patients harboring 683 surgically treated USIAs were evaluated...
September 21, 2018: Journal of Neurosurgery
Marcelo de Lima Oliveira, Juliana R Caldas, Manoel Jacobsen Teixeira, Edson Bor-Seng-Shu
No abstract text is available yet for this article.
September 21, 2018: Journal of Neurosurgery
Carl H Snyderman, Paul A Gardner
No abstract text is available yet for this article.
September 21, 2018: Journal of Neurosurgery
Ramin A Morshed, Jacob S Young, Seunggu J Han, Shawn L Hervey-Jumper, Mitchel S Berger
OBJECTIVE: Greater extent of resection (EOR) improves overall survival and progression-free survival for patients with low- and high-grade glioma. While resection for newly diagnosed insular gliomas can be performed with minimal morbidity, perioperative morbidity is not clearly defined for patients undergoing a repeat resection for recurrent insular gliomas. In this study the authors report on tumor characteristics, tumor EOR, and functional outcomes in patients undergoing reoperation for recurrent insular glioma...
September 21, 2018: Journal of Neurosurgery
Ariel Kaen, Eugenio Cárdenas Ruiz-Valdepeñas, Alberto Di Somma, Francisco Esteban, Javier Márquez Rivas, Jesús Ambrosiani Fernandez
OBJECTIVE: The endoscopic endonasal transpterygoid route has been widely evaluated in cadavers, and it is currently used during surgery for specific diseases involving the lateral skull base. Identification of the petrous segment of the internal carotid artery (ICA) is a key step during this approach, and the vidian nerve (VN) has been described as a principal landmark for safe endonasal localization of the petrous ICA at the level of the foramen lacerum. However, the relationship of the VN to the ICA at this level is complex as well as variable and has not been described in the pertinent literature...
September 21, 2018: Journal of Neurosurgery
Marcio S Rassi, Sashank Prasad, Anil Can, Svetlana Pravdenkova, Rami Almefty, Ossama Al-Mefty
OBJECTIVE: Although meningiomas frequently involve the optic nerve, primary optic nerve sheath meningiomas (ONSMs) are rare, accounting for only 1% of all meningiomas. Given the high risk of vision loss with these tumors, surgical intervention is seldom considered, and radiation or observation is commonly applied. Here, the authors describe the visual outcomes for a series of patients who were treated with surgery aiming at maximal tumor resection and highlight their prognostic factors...
September 21, 2018: Journal of Neurosurgery
Takero Hirata, Manabu Kinoshita, Keisuke Tamari, Yuji Seo, Osamu Suzuki, Nobuhide Wakai, Takamune Achiha, Toru Umehara, Hideyuki Arita, Naoki Kagawa, Yonehiro Kanemura, Eku Shimosegawa, Naoya Hashimoto, Jun Hatazawa, Haruhiko Kishima, Teruki Teshima, Kazuhiko Ogawa
OBJECTIVE: It is important to correctly and precisely define the target volume for radiotherapy (RT) of malignant glioma. 11 C-methionine (MET) positron emission tomography (PET) holds promise for detecting areas of glioma cell infiltration: the authors' previous research showed that the magnitude of disruption of MET and 18 F-fluorodeoxyglucose (FDG) uptake correlation (decoupling score [DS]) precisely reflects glioma cell invasion. The purpose of the present study was to analyze volumetric and geometrical properties of RT target delineation based on DS and compare them with those based on MRI...
September 21, 2018: Journal of Neurosurgery
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