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Neural surgery

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https://www.readbyqxmd.com/read/29778931/monitoring-tool-usage-in-surgery-videos-using-boosted-convolutional-and-recurrent-neural-networks
#1
Hassan Al Hajj, Mathieu Lamard, Pierre-Henri Conze, Béatrice Cochener, Gwenolé Quellec
This paper investigates the automatic monitoring of tool usage during a surgery, with potential applications in report generation, surgical training and real-time decision support. Two surgeries are considered: cataract surgery, the most common surgical procedure, and cholecystectomy, one of the most common digestive surgeries. Tool usage is monitored in videos recorded either through a microscope (cataract surgery) or an endoscope (cholecystectomy). Following state-of-the-art video analysis solutions, each frame of the video is analyzed by convolutional neural networks (CNNs) whose outputs are fed to recurrent neural networks (RNNs) in order to take temporal relationships between events into account...
May 9, 2018: Medical Image Analysis
https://www.readbyqxmd.com/read/29772400/neuro-endoscope-for-skull-base-tumors
#2
REVIEW
Hua Gao, Chunhui Liu, Yazhuo Zhang
The endoscope has traditionally been used in neurosurgery to access a lesion within a natural body cavity. The challenge has been to access and resect deep-seated intraparenchymal lesions using a minimally invasive endoscopic technique. Endoscopic endonasal trans-sphenoidal surgery has gained increasing acceptance by otolaryngologists and neurosurgeons. Surgical procedures of the skull base include exposure, resection, and base reconstruction. These approaches start at the sphenoid sinus, which provides a reference point to important vascular and neural structures...
May 14, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29770244/predicting-length-of-stay-in-intensive-care-units-after-cardiac-surgery-comparison-of-artificial-neural-networks-and-adaptive-neuro-fuzzy-system
#3
Hamidreza Maharlou, Sharareh R Niakan Kalhori, Shahrbanoo Shahbazi, Ramin Ravangard
Objectives: Accurate prediction of patients' length of stay is highly important. This study compared the performance of artificial neural network and adaptive neuro-fuzzy system algorithms to predict patients' length of stay in intensive care units (ICU) after cardiac surgery. Methods: A cross-sectional, analytical, and applied study was conducted. The required data were collected from 311 cardiac patients admitted to intensive care units after surgery at three hospitals of Shiraz, Iran, through a non-random convenience sampling method during the second quarter of 2016...
April 2018: Healthcare Informatics Research
https://www.readbyqxmd.com/read/29769463/the-kinematic-recovery-process-of-rhesus-monkeys-after-spinal-cord-injury
#4
Rui-Han Wei, Can Zhao, Jia-Sheng Rao, Wen Zhao, Xia Zhou, Peng-Yu Tian, Wei Song, Run Ji, Ai-Feng Zhang, Zhao-Yang Yang, Xiao-Guang Li
After incomplete spinal cord injury (SCI), neural circuits may be plastically reconstructed to some degree, resulting in extensive functional locomotor recovery. The present study aimed to observe the post-SCI locomotor recovery of rhesus monkey hindlimbs and compare the recovery degrees of different hindlimb parts, thus revealing the recovery process of locomotor function. Four rhesus monkeys were chosen for thoracic hemisection injury. The hindlimb locomotor performance of these animals was recorded before surgery, as well as 6 and 12 weeks post-lesion...
May 16, 2018: Experimental Animals
https://www.readbyqxmd.com/read/29768345/atypical-symptoms-in-patients-with-cervical-spondylosis-comparison-of-the-treatment-effect-of-different-surgical-approaches
#5
Yuqing Sun, Aikeremujiang Muheremu, Wei Tian
To compare the effectiveness of total disk replacement (TDR), anterior cervical discectomy and fusion (ACDF), and laminoplasty on atypical symptoms of cervical spondylosis.Patients with confirmed diagnosis of cervical spondylosis and reported atypical symptoms such as blurred vision, headache, nausea, palpitation, tinnitus, vertigo, hypomnesia, and abdominal discomfort were retrospectively included in the present study. They were treated with TDR, ACDF, or laminoplasty depending on the etiology and patient preference...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29767566/external-beam-radiotherapy-for-the-treatment-of-feline-salivary-gland-carcinoma-six-new-cases-and-a-review-of-the-literature
#6
Laura Blackwood, Aaron Harper, James Elliott, Irina Gramer
Case series summary Salivary gland carcinoma is uncommon in cats. We report the outcome of radiation therapy in six cases (four salivary gland adenocarcinomas, one tubulopapillary adenocarcinoma, one carcinoma). Five were treated after surgical excision of the primary tumour, but four had gross disease (primary or metastatic) at the time of starting radiotherapy. Exact progression-free interval from the start of radiotherapy in the two cats where this was known was 120 and 144 days, respectively. One cat was signed off at 766 days with no evidence of recurrence...
May 1, 2018: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/29766939/minimally-invasive-options-for-surgical-management-of-adjacent-segment-disease-of-the-lumbar-spine
#7
Mazda K Turel, Mena G Kerolus, Brian T David, Richard G Fessler
Background: The incidence of adjacent segment disease (ASD) after lumbar spine surgery is a condition that has become increasingly common as the rate of lumbar spine surgery continues to rise. Minimally invasive techniques continue to be refined and offer an opportunity to treat ASD with minimal tissue disruption, lower blood loss, a shorter hospital stay, and decreased morbidity. The aim of this report is to describe the various minimally invasive options for ASD with a comprehensive review of the existing literature...
May 2018: Neurology India
https://www.readbyqxmd.com/read/29766231/available-bone-morphology-and-status-of-neural-structures-in-the-mandibular-interforaminal-region-three-dimensional-analysis-of-anatomical-structures
#8
Duygu Goller Bulut, Emre Köse
PURPOSE: This study aimed to clarify the size and morphology of the mandible and to determine state of neural structures for the planning of the dental implantation using cone-beam computerized tomography (CBCT). METHODS: Of the 252 patients, CBCT images of 48 selected patients were evaluated. The bone height and width were measured and the type of the mental portion of the inferior alveolar canal, the anterior loop length (ALL), the location of the incisive canal and lingual foramen were identified with cross-sectional and multiplane reformatted CBCT images...
May 15, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29765412/neural-stem-cell-conditioned-medium-ameliorated-cerebral-ischemia-reperfusion-injury-in-rats
#9
HongNa Yang, Cuilan Wang, Hui Chen, Lan Li, Shuang Ma, Hao Wang, YaRu Fu, Tingyu Qu
Introduction: Our previous study suggested that NSC-CM (neural stem cell-conditioned medium) inhibited cell apoptosis in vitro . In addition, many studies have shown that neurotrophic factors and microparticles secreted into a conditioned medium by NSCs had neuroprotective effects. Thus, we hypothesized that NSC-CM had the capacity of protecting against cerebral I/R injury. Methods: Adult male Sprague-Dawley rats receiving middle cerebral artery occlusion surgery as an animal model of cerebral I/R injury were randomly assigned to two groups: the control group and NSC-CM-treated group...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29765105/neural-predisposing-factors-of-postoperative-delirium-in-elderly-patients-with-femoral-neck-fracture
#10
Sunghyon Kyeong, Jung Eun Shin, Kyu Hyun Yang, Woo Suk Lee, Tae-Sub Chung, Jae-Jin Kim
Elderly adults are more likely to develop delirium after major surgery, but there is limited knowledge of the vulnerability for postoperative delirium. In this study, we aimed to identify neural predisposing factors for postoperative delirium and develop a prediction model for estimating an individual's probability of postoperative delirium. Among 57 elderly participants with femoral neck fracture, 25 patients developed postoperative delirium and 32 patients did not. We preoperatively obtained data for clinical assessments, anatomical MRI, and resting-state functional MRI...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29764274/delayed-transmastoid-facial-nerve-decompression-surgery-in-patients-with-ramsay-hunt-syndrome-presenting-with-neurophysiologically-complete-paralysis
#11
Yoshihiko Kumai, Momoko Ise, Satoru Miyamaru, Yorihisa Orita
OBJECTIVES: To determine the efficacy of delayed transmastoid facial nerve decompression in patients with Ramsay Hunt Syndrome (RHS) presenting with complete facial paralysis. METHODS: Twenty-five RHS patients with complete facial nerve paralysis presenting electroneuronographic (ENoG) degeneration ≥90% underwent transmastoid facial nerve decompression more than 3 weeks after the onset of paralysis. The principal features measured were 12 months pre- and post-operative House-Brackmann (HB) grades and the presence of a direct intraoperative neural response (INR) prior to decompression procedure...
May 15, 2018: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29760182/alternating-modulation-of-subthalamic-nucleus-beta-oscillations-during-stepping
#12
Petra Fischer, Chiung Chu Chen, Ya Ju Chang, Chien-Hung Yeh, Alek Pogosyan, Damian M Herz, Binith Cheeran, Alexander L Green, Tipu Z Aziz, Jonathan Hyam, Simon Little, Thomas Foltynie, Patricia Limousin, Ludvic Zrinzo, Harutomo Hasegawa, Michael Samuel, Keyoumars Ashkan, Peter Brown, Huiling Tan
Gait disturbances in Parkinson's disease are commonly refractory to current treatment options and majorly impair patient's quality of life. Auditory cues facilitate gait and prevent motor blocks. We investigated how neural dynamics in the human subthalamic nucleus of Parkinsons's disease patients (14 male, 2 female) vary during stepping and whether rhythmic auditory cues enhance the observed modulation. Oscillations in the beta band were suppressed after ipsilateral heel strikes, when the contralateral foot had to be raised, and re-appeared after contralateral heel strikes, when the contralateral foot rested on the floor...
May 14, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29759043/electrochemotherapy-of-spinal-metastases-using-transpedicular-approach-a-numerical-feasibility-study
#13
Helena Cindrič, Bor Kos, Giuseppe Tedesco, Matteo Cadossi, Alessandro Gasbarrini, Damijan Miklavčič
Vertebral column is the most frequent site for bone metastases. It has been demonstrated in previous studies that bone metastases can be efficiently treated by electrochemotherapy. We developed a novel approach to treat spinal metastases, that is, transpedicular approach that combines electrochemotherapy with already established technologies for insertion of fixation screws in spinal surgery. In the transpedicular approach, needle electrodes are inserted into the vertebral body through pedicles and placed around the tumor...
January 1, 2018: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29755240/comparison-of-thermal-spread-with-the-use-of-an-ultrasonic-osteotomy-device-sonopet-ultrasonic-aspirator-versus-misonix-bonescalpel-in-spinal-surgery
#14
Nadim Tarazi, Sudarshan Munigangaiah, Mutaz Jadaan, John P McCabe
Background: The development of high speed rotating burrs has greatly advanced spinal surgery in recent years. However, they produce unwanted frictional heat and temperature elevation during the burring process. We compare the misonix bone scalpel (MBS) and the Sonopet ultrasonic aspirator to assess which would be the safer device in terms of the risk of thermal injury following laminectomy. Methods: We describe an experimental nonrandomized study comparing two ultrasonic osteotomy devices...
January 2018: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/29749918/operative-and-consultative-proportions-of-neurosurgical-disease-worldwide-estimation-from-the-surgeon-perspective
#15
Michael C Dewan, Abbas Rattani, Ronnie E Baticulon, Serena Faruque, Walter D Johnson, Robert J Dempsey, Michael M Haglund, Blake C Alkire, Kee B Park, Benjamin C Warf, Mark G Shrime
OBJECTIVE The global magnitude of neurosurgical disease is unknown. The authors sought to estimate the surgical and consultative proportion of diseases commonly encountered by neurosurgeons, as well as surgeon case volume and perceived workload. METHODS An electronic survey was sent to 193 neurosurgeons previously identified via a global surgeon mapping initiative. The survey consisted of three sections aimed at quantifying surgical incidence of neurological disease, consultation incidence, and surgeon demographic data...
May 11, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29749917/a-novel-neural-prosthesis-providing-long-term-electrocorticography-recording-and-cortical-stimulation-for-epilepsy-and-brain-computer-interface
#16
Pantaleo Romanelli, Marco Piangerelli, David Ratel, Christophe Gaude, Thomas Costecalde, Cosimo Puttilli, Mauro Picciafuoco, Alim Benabid, Napoleon Torres
OBJECTIVE Wireless technology is a novel tool for the transmission of cortical signals. Wireless electrocorticography (ECoG) aims to improve the safety and diagnostic gain of procedures requiring invasive localization of seizure foci and also to provide long-term recording of brain activity for brain-computer interfaces (BCIs). However, no wireless devices aimed at these clinical applications are currently available. The authors present the application of a fully implantable and externally rechargeable neural prosthesis providing wireless ECoG recording and direct cortical stimulation (DCS)...
May 11, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29747962/comparison-of-vemps-vhit-and-caloric-test-outcomes-after-vestibular-neurectomy-in-meni%C3%A3-re-s-disease
#17
Andrea Canale, Federico Caranzano, Michele Lanotte, Alessandro Ducati, Francesco Calamo, Andrea Albera, Michelangelo Lacilla, Marco Boldreghini, Sergio Lucisano, Roberto Albera
OBJECTIVE: Selective unilateral vestibular neurectomy (VN) is considered a reliable surgical treatment in case of recurrent vertigo in Menière's disease (MD) because of hearing preservation and a minimally invasive posterior fossa retrosigmoid approach. The present study aimed to assess the quality of life and the long-term vestibular function in patients submitted to yearly follow-up after VN because of intractable MD. METHODS: Retrospective series of 15 MD patients undergoing retrosigmoid VN for recurrent vertigo...
May 7, 2018: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/29746889/modular-auditory-decision-making-behavioral-task-designed-for-intraoperative-use-in-humans
#18
Anand Tekriwal, Gidon Felsen, John A Thompson
BACKGROUND: Neurosurgical interventions that require active patient feedback, such as deep brain stimulation surgery, create an opportunity to conduct cognitive or behavioral experiments during the acquisition of invasive neurophysiology. Optimal design and implementation of intraoperative behavioral experiments require consideration of stimulus presentation, time and surgical constraints. We describe the use of a modular, inexpensive system that implements a decision-making paradigm, designed to overcome challenges associated with the operative environment...
May 7, 2018: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/29746446/reduced-hemidiaphragmatic-paresis-with-a-corner-pocket-technique-for-supraclavicular-brachial-plexus-block-single-center-observer-blinded-randomized-controlled-trial
#19
Ryung A Kang, Yang Hoon Chung, Justin Sangwook Ko, Mi Kyung Yang, Duck Hwan Choi
BACKGROUND AND OBJECTIVE: Hemidiaphragmatic paresis is common after supraclavicular brachial plexus block (SCBPB). In this randomized trial, we compared the incidence of hemidiaphragmatic paresis in patients who had local anesthetic injected primarily in the corner pocket (defined as the intersection of the first rib and subclavian artery) during SCBPB with that of patients who underwent injection primarily inside the neural cluster. METHODS: Thirty-six patients scheduled for right elbow, forearm, wrist, or hand surgery under SCBPB (using 12...
May 10, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29742889/intraoperative-neurophysiological-monitoring-a-review-of-techniques-used-for-brain-tumor-surgery-in-children
#20
REVIEW
Keewon Kim, Charles Cho, Moon-Suk Bang, Hyung-Ik Shin, Ji-Hoon Phi, Seung-Ki Kim
Intraoperative monitoring (IOM) utilizes electrophysiological techniques as a surrogate test and evaluation of nervous function while a patient is under general anesthesia. They are increasingly used for procedures, both surgical and endovascular, to avoid injury during an operation, examine neurological tissue to guide the surgery, or to test electrophysiological function to allow for more complete resection or corrections. The application of IOM during pediatric brain tumor resections encompasses a unique set of technical issues...
May 2018: Journal of Korean Neurosurgical Society
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