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Neurosurgical planning

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https://www.readbyqxmd.com/read/28538516/left-lateralization-of-resting-state-functional-connectivity-between-the-presupplementary-motor-area-and-primary-language-areas
#1
William Lou, Kyung K Peck, Nicole Brennan, Arka Mallela, Andrei Holodny
An abundance of evidence points to the role of a presupplementary motor area (pre-SMA) in human language. This study explores the pre-SMA resting state connectivity network and the nature of its connections to known language areas. We tested the hypothesis that by seeding the pre-SMA, one would be able to establish language laterality to known cortical and subcortical language areas. We analyzed data from 30 right-handed healthy controls and performed the resting state functional MRI. A seed-based analysis using a manually drawn pre-SMA region of interest template was applied...
May 19, 2017: Neuroreport
https://www.readbyqxmd.com/read/28529875/advanced-magnetic-resonance-imaging-and-neuropsychological-assessment-for-detecting-brain-injury-in-a-prospective-cohort-of-university-amateur-boxers
#2
M G Hart, C R Housden, J Suckling, R Tait, A Young, U Müller, V F J Newcombe, I Jalloh, B Pearson, J Cross, R A Trivedi, J D Pickard, B J Sahakian, P J Hutchinson
BACKGROUND/AIM: The safety of amateur and professional boxing is a contentious issue. We hypothesised that advanced magnetic resonance imaging and neuropsychological testing could provide evidence of acute and early brain injury in amateur boxers. METHODS: We recruited 30 participants from a university amateur boxing club in a prospective cohort study. Magnetic resonance imaging (MRI) and neuropsychological testing was performed at three time points: prior to starting training; within 48 h following a first major competition to detect acute brain injury; and one year follow-up...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28481397/endoscopic-endonasal-cerebrospinal-fluid-leak-repair-on-the-ventral-midline-skull-base-a-single-neurosurgical-center-experience
#3
Cihan Isler, Merdin Lyutviev Ahmedov, Mehmet Yigit Akgun, Baris Kucukyuruk, Nurperi Gazioglu, Galip Sanus, Necmettin Tanriover
AIM: The aim of this study was to present the results of endoscopic endonasal repair of ventral midline skull base cerebrospinal fluid (CSF) leak (VMSBL) at our institution and to discuss the technique and results from a neurosurgical perspective. MATERIAL AND METHODS: A retrospective analysis of all VMSBL cases that underwent endoscopic endonasal skull base approach (EESBA) for CSF leak repair at a single tertiary neurosurgical center was performed. Twenty six patients with an average age of 44...
March 25, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28472336/association-of-hospitalization-for-neurosurgical-operations-in-magnet-hospitals-with-mortality-and-length-of-stay
#4
Symeon Missios, Kimon Bekelis
BACKGROUND: The association of Magnet hospital status with improved surgical outcomes remains an issue of debate. OBJECTIVE: To investigate whether hospitalization in a Magnet hospital is associated with improved outcomes for patients undergoing neurosurgical operations. METHODS: A cohort study was executed using all patients undergoing neurosurgical operations in New York registered in the Statewide Planning and Research Cooperative System database from 2009 to 2013...
May 3, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28463617/robot-assisted-procedures-in-pediatric-neurosurgery
#5
Alessandro De Benedictis, Andrea Trezza, Andrea Carai, Elisabetta Genovese, Emidio Procaccini, Raffaella Messina, Franco Randi, Silvia Cossu, Giacomo Esposito, Paolo Palma, Paolina Amante, Michele Rizzi, Carlo Efisio Marras
OBJECTIVE During the last 3 decades, robotic technology has rapidly spread across several surgical fields due to the continuous evolution of its versatility, stability, dexterity, and haptic properties. Neurosurgery pioneered the development of robotics, with the aim of improving the quality of several procedures requiring a high degree of accuracy and safety. Moreover, robot-guided approaches are of special interest in pediatric patients, who often have altered anatomy and challenging relationships between the diseased and eloquent structures...
May 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28463609/initial-academic-experience-and-learning-curve-with-robotic-spine-instrumentation
#6
Timur M Urakov, Ken Hsuan-Kan Chang, S Shelby Burks, Michael Y Wang
OBJECTIVE Spine surgery is complex and involves various steps. Current robotic technology is mostly aimed at assisting with pedicle screw insertion. This report evaluates the feasibility of robot-assisted pedicle instrumentation in an academic environment with the involvement of residents and fellows. METHODS The Renaissance Guidance System was used to plan and execute pedicle screw placement in open and percutaneous consecutive cases performed in the period of December 2015 to December 2016. The database was reviewed to assess the usability of the robot by neurosurgical trainees...
May 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28458878/rendering-a-ruptured-arteriovenous-malformation-more-susceptible-to-spontaneous-obliteration-as-a-possible-treatment-strategy-for-cerebral-avm
#7
Szu-Kai Hsu, Chih-Ju Chang, I-Chang Su
Spontaneous regression of cerebral arteriovenous malformation (AVM) is a rare phenomenon, but its occurrence is an important consideration in treatment planning. A 58-year-old male was found to have a high-flow AVM of Spetzler-Martin Grade III. Before his scheduled treatment, the AVM ruptured with a large parenchymal hemorrhage. Following emergency decompressive surgery, a targeted embolization procedure was performed to obliterate the ruptured weak point and to reduce the shunting flow. The residual AVM became a malformation harboring angio-architectural factors favoring spontaneous obliteration...
April 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28456743/does-objective-quality-of-physicians-correlate-with-patient-satisfaction-measured-by-hospital-compare-metrics-in-new-york-state
#8
Kimon Bekelis, Symeon Missios, Todd A MacKenzie, Patrick M O'Shaughnessy
BACKGROUND: It is unclear whether publicly reported benchmarks correlate with the quality of physicians and institutions. We investigated the association of patient satisfaction measures from a public reporting platform with the performance of neurosurgeons in New York State. METHODS: We performed a cohort study involving patients undergoing neurosurgical operations from 2009-2013, who were registered in the Statewide Planning and Research Cooperative System (SPARCS) database...
April 26, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28414967/pharmacodynamics-of-remifentanil-induced-intracranial-spike-activity-in-mesial-temporal-lobe-epilepsy
#9
Troels Wesenberg Kjaer, Hans Hogenhaven, Andrea P Lee, Flemming Find Madsen, Bo Jespersen, Jannick Brennum, Lennart Derm, Finn Borgbjerg Moltke
Patients with medically refractory epilepsy may benefit from resective epilepsy surgery. However even the best centers experience surgical failures. It is therefore important to find techniques that may aid in neurosurgical planning of epileptic focus resection. Recordings of electrical brain activity with EEG during seizures reveal abnormal cortical hypersynchronization. Between seizures the EEG often shows interictal depolarizing phenomena such as spikes reflecting an irritable focus of the brain. In the present study we investigated the effect of intravenous remifentanil on the spike activity in the temporal neocortex and hippocampus...
March 31, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28400898/many-neurology-readmissions-are-nonpreventable
#10
Sidney T Le, S Andrew Josephson, Hans A Puttgen, Lorrie Gibson, Elan L Guterman, Heather M Leicester, Carla L Graf, John C Probasco
INTRODUCTION: Reducing unplanned hospital readmissions has become a national focus due to the Centers for Medicare and Medicaid Services' (CMS) penalties for hospitals with high rates. A first step in reducing unplanned readmission is to understand which patients are at high risk for readmission, which readmissions are planned, and how well planned readmissions are currently captured in comparison to patient-level chart review. METHODS: We examined all 5455 inpatient neurology admissions over a 2-year period to University of California San Francisco Medical Center and Johns Hopkins Hospital via chart review...
April 2017: Neurohospitalist
https://www.readbyqxmd.com/read/28382397/does-scope-of-practice-correlate-with-the-outcomes-of-craniotomy-for-tumor-resection-in-children
#11
Symeon Missios, Kimon Bekelis
BACKGROUND: The relationship of scope of practice (predominantly adult, versus predominantly pediatric) with the outcomes of brain tumor surgery in children remains uncertain. We investigated the association of practice focus with the outcomes of neurosurgical oncology operations in pediatric patients. METHODS: We performed a cohort study of all pediatric patients (younger than 18 years old) who underwent craniotomies for tumor resections from 2009 to 2013 and were registered in the Statewide Planning and Research Cooperative System (SPARCS) database...
June 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28377253/implementing-functional-preoperative-mapping-in-the-clinical-routine-of-a-neurosurgical-department-technical-note
#12
Nico Sollmann, Bernhard Meyer, Sandro M Krieg
BACKGROUND: Navigated transcranial magnetic stimulation (nTMS) is increasingly being used for mapping of various brain functions and nTMS-based tractography in neurosurgical departments worldwide. When a department starts integrating nTMS data into the clinical workflow, smooth implementation in the existing hospital's infrastructure is mandatory. However, standardized approaches beyond the mapping or tractography procedures themselves have not yet been described. METHODS: To create an effective workflow for neurosurgical nTMS mapping, we present the results of our 7 years of experience and progressive integration into clinical routine...
April 1, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28362962/correlation-of-subjective-hospital-compare-metrics-with-objective-outcomes-of-cranial-neurosurgical-procedures-in-new-york-state
#13
Kimon Bekelis, Symeon Missios, Shannon Coy, Redi Rahmani, Todd A MacKenzie, Anthony L Asher
BACKGROUND: Public reporting is at the forefront of health care reform. OBJECTIVE: To investigate whether patient satisfaction as expressed in a public reporting platform correlates with objective outcomes for cranial neurosurgery patients. METHODS: We performed a cohort study involving patients undergoing cranial neurosurgery from 2009 to 2013 who were registered in the Statewide Planning and Research Cooperative System database. This cohort was merged with the corresponding data from the Centers for Medicare and Medicaid Services Hospital Compare website...
March 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28362934/three-dimensional-printed-modeling-of-diffuse-low-grade-gliomas-and-associated-white-matter-tract-anatomy
#14
Jayesh P Thawani, Nickpreet Singh, Jared M Pisapia, Kalil G Abdullah, Drew Parker, Bryan A Pukenas, Eric L Zager, Ragini Verma, Steven Brem
BACKGROUND: Diffuse low-grade gliomas (DLGGs) represent several pathological entities that infiltrate and invade cortical and subcortical structures in the brain. OBJECTIVE: To describe methods for rapid prototyping of DLGGs and surgically relevant anatomy. METHODS: Using high-definition imaging data and rapid prototyping technologies, we were able to generate 3 patient DLGGs to scale and represent the associated white matter tracts in 3 dimensions using advanced diffusion tensor imaging techniques...
April 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28362185/reoperations-within-48-hours-following-7942-pediatric-neurosurgery-procedures
#15
Anil K Roy, Jason Chu, Caroline Bozeman, Samir Sarda, Michael Sawvel, Joshua J Chern
OBJECTIVE Various indicators are used to evaluate the quality of care delivered by surgical services, one of which is early reoperation rate. The indications and rate of reoperations within a 48-hour time period have not been previously reported for pediatric neurosurgery. METHODS Between May 1, 2009, and December 30, 2014, 7942 surgeries were performed by the pediatric neurosurgery service in the operating rooms at a single institution. Demographic, socioeconomic, and clinical characteristics associated with each of the operations were prospectively collected...
March 31, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28359922/first-application-of-7t-magnetic-resonance-imaging-in-endoscopic-endonasal-surgery-of-skull-base-tumors
#16
Thomas F Barrett, Hadrien A Dyvorne, Francesco Padormo, Puneet S Pawha, Bradley N Delman, Raj K Shrivastava, Priti Balchandani
BACKGROUND: Successful endoscopic endonasal surgery for the resection of skull base tumors is reliant on preoperative imaging to delineate pathology from the surrounding anatomy. The increased signal-to-noise ratio afforded by 7T MRI can be used to increase spatial and contrast resolution, which may lend itself to improved imaging of skull base. In this study, we apply a 7T imaging protocol to patients with skull base tumors and compare the images to clinical standard of care. METHODS: Images were acquired at 7T on 11 patients with skull base lesions...
March 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28331887/android-application-for-determining-surgical-variables-in-brain-tumor-resection-procedures
#17
Rohan C Vijayan, Reid C Thompson, Lola B Chambless, Peter J Morone, Le He, Logan W Clements, Rebekah H Griesenauer, Hakmook Kang, Michael I Miga
The fidelity of image-guided neurosurgical procedures is often compromised due to the mechanical deformations that occur during surgery. In recent work, a framework was developed to predict the extent of this brain shift in brain-tumor resection procedures. The approach uses preoperatively determined surgical variables to predict brain shift and then subsequently corrects the patient's preoperative image volume to more closely match the intraoperative state of the patient's brain. However, a clinical workflow difficulty with the execution of this framework is the preoperative acquisition of surgical variables...
January 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28328648/the-economic-and-clinical-impact-of-sustained-use-of-a-progressive-mobility-program-in-a-neuro-icu
#18
Jeannette M Hester, Peggy R Guin, Gale D Danek, Jaime R Thomas, William L Titsworth, Richard K Reed, Terrie Vasilopoulos, Brenda G Fahy
OBJECTIVE: To investigate a progressive mobility program in a neurocritical care population with the hypothesis that the benefits and outcomes of the program (e.g., decreased length of stay) would have a significant positive economic impact. DESIGN: Retrospective analysis of economic and clinical outcome data before, immediately following, and 2 years after implementation of the Progressive Upright Mobility Protocol Plus program (UF Health Shands Hospital, Gainesville, FL) involving a series of planned movements in a sequential manner with an additional six levels of rehabilitation in the neuro-ICU at UF Health Shands Hospital...
June 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28291210/-long-association-tracts-of-the-human-white-matter-an-analysis-of-18-hemisphere-dissections-and-in-vivo-hardi-csd-tractography
#19
S A Goryainov, A V Kondrashov, M F Gol'dberg, A I Batalov, R A Sufianov, N E Zakharova, I N Pronin, D A Gol'bin, V Yu Zhukov, G F Dobrovol'sky, S Yu Shelyakin, V N Vorob'ev, S S Dadykin, A A Potapov
BACKGROUND: Anatomy of the conduction tracts of the cerebral cortex has been studied for a long time. Invention of diffusion tensor tractography renewed interest in this subject. The objectives of this work were to develop and improve protocols for dissection of the long association tracts of the human brain with studying the features of their segmentation, topography, and variability, compare the obtained data with the MR tractography data, and prepare for further clinical and anatomical studies...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28286317/7t-fmri-faster-temporal-resolution-yields-optimal-bold-sensitivity-for-functional-network-imaging-specifically-at-high-spatial-resolution
#20
Peter E Yoo, Sam E John, Shawna Farquharson, Jon O Cleary, Yan T Wong, Amanda Ng, Claire B Mulcahy, David B Grayden, Roger J Ordidge, Nicholas L Opie, Terence J O'Brien, Thomas J Oxley, Bradford A Moffat
Recent developments in accelerated imaging methods allow faster acquisition of high spatial resolution images. This could improve the applications of functional magnetic resonance imaging at 7 Tesla (7T-fMRI), such as neurosurgical planning and Brain Computer Interfaces (BCIs). However, increasing the spatial and temporal resolution will both lead to signal-to-noise ratio (SNR) losses due to decreased net magnetization per voxel and T1-relaxation effect, respectively. This could potentially offset the SNR efficiency gains made with increasing temporal resolution...
March 8, 2017: NeuroImage
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