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Neurosurgery technique

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https://www.readbyqxmd.com/read/29660551/photogrammetry-of-the-human-brain-a-novel-method-for-3d-the-quantitative-exploration-of-the-structural-connectivity-in-neurosurgery-and-neurosciences
#1
Alessandro De Benedictis, Erica Nocerino, Fabio Menna, Fabio Remondino, Mattia Barbareschi, Umberto Rozzanigo, Francesco Corsini, Emanuele Olivetti, Carlo Efisio Marras, Franco Chioffi, Paolo Avesani, Silvio Sarubbo
BACKGROUND: Anatomical awareness of brain's structural connectivity is mandatory for neurosurgeons, to select the most effective approaches for brain resections. Although standard micro-dissection is a validated technique to investigate the different white matter (WM) pathways and to verify results coming from tractography, the possibility of an interactive exploration of the specimens and of a reliable acquisition of quantitative information has not been described so far. Photogrammetry is a well-established technique allowing an accurate metrology on highly defined 3D-models...
April 13, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29651751/usefulness-of-venous-catheter-as-an-intraluminal-stent-for-end-to-end-venous-anastomosis
#2
Tetsuyoshi Horiuchi, Yoshinari Miyaoka, Takatoshi Hasegawa, Kiyoshi Ito, Kazuhiro Hongo
BACKGROUND: Venous anastomosis is one of the most difficult techniques in vascular neurosurgery. METHOD: We present a simple technique of end-to-end venous anastomosis for reconstruction of accidentally injured vein. A venous catheter was used for the stent during the end-to-end anastomosis. RESULTS: The venous catheter as the stent facilitated confirmation of the ostium of the vein. The venous end-to-end anastomosis was successfully performed...
April 12, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29644899/technical-notes-on-the-endoscopic-endonasal-approach-to-the-craniovertebral-junction-for-odontoidectomy
#3
Dennis Tang, Christopher Roxbury, Brian D'Anza, Varun Kshettry, Troy Woodard, Pablo Recinos, Raj Sindwani
INTRODUCTION: Odontoidectomy can help decompress ventral compression of the brainstem and upper cervical spinal cord in the presence of bony abnormalities of the craniovertebral junction (CVJ), e.g., an odontoid pannus. Endonasal approaches have been shown to be associated with lower morbidity compared with traditional transoral approaches. We demonstrated an entirely endonasal approach to the CVJ. MATERIALS AND METHODS: We presented our technique for performing an endoscopic endonasal odontoidectomy...
March 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29621813/cushing-s-syndrome-a-historic-review-of-the-treatment-strategies-and-corresponding-outcomes-in-a-single-tertiary-center-over-the-past-half-century
#4
Anelia Nankova, Maria Yaneva, Atanaska Elenkova, Dimitar Tcharaktchiev, Marin Marinov, Asen Hadzhiyanev, Tanyo Sechanov, Georgi Gantchev, Georgi Todorov, Georgi Kirilov, Krasimir Kalinov, Maria Andreeva, Sabina Zacharieva
Cushing's syndrome (CS) is associated with serious comorbidities and an increased mortality rate that could be reduced only if strict biochemical control is achieved. The aim of this study was to show the 50-year experience of a single tertiary center in the management of CS patients - the different treatment modalities used over the years and the corresponding outcomes. It was a retrospective study of a large cohort of patients from the Bulgarian CS database: 613 patients (374 with ACTH-dependent and 239 with ACTH-independent CS)...
April 2018: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/29599629/the-first-awake-clipping-of-a-brain-aneurysm-in-malaysia-and-in-asean-achieving-international-standards
#5
EDITORIAL
Zamzuri Idris, Regunath Kandasamy, Yee Yik Neoh, Jafri Malin Abdullah, Wan Mohd Nazaruddin Wan Hassan, Mohd Erham Mat Hassan
World-renowned neurosurgeon, Professor Saleem Abdulrauf, has been featured in several medical journals for his successful "Awake Brain Aneurysm Surgery". Regarded as a "world first", this surgery, involves clipping un-ruptured brain aneurysms while patients are awake. Only one or two neurosurgery centres worldwide are capable of this. Performing the surgery while the patient is awake lowers risks of brain ischemia with neurological deficits and ventilator associated morbidities. The technique has been viewed as the start of a new era in brain surgery...
February 2018: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/29595352/the-inhibitory-effect-of-functional-lesions-on-eloquent-brain-areas-from-research-bench-to-operating-bed
#6
Mojtaba Rismanchi
OBJECTIVES: Functioning, but injured cerebral connections are hypothesized to inhibit cortical plasticity. Study of neural networks can validate this hypothesis, and provide further practical clues for clinical and surgical options to restore function in eloquent brain areas. MATERIAL AND METHODS: Cortical lesions in eloquent areas were simulated by means of artificial neural networks. Next, functional restoration of these networks after lesional bypass was studied...
March 29, 2018: International Journal of Neuroscience
https://www.readbyqxmd.com/read/29595045/the-endoscopic-surgical-resection-of-intrasellar-lesions-conserves-the-hormonal-function-a-negative-correlation-to-the-microsurgical-technique
#7
Stefan Linsler, Sebastian Senger, Renate Hero-Gross, Wolf-Ingo Steudel, Joachim Oertel
BACKGROUND: The endonasal endoscopic approach is still currently under investigation for sellar tumour surgery: a higher resection rate is to be expected and complications should be minimized. The authors report their surgical results of endonasal endoscopic neurosurgery with special focus on postoperative hypopituitarism in comparison to microsurgical procedures. METHODS: Sixty patients received endoscopic endonasal transsphenoidal procedures for sellar pathologies...
March 28, 2018: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/29588484/neurosurgical-untethering-with-or-without-syrinx-drainage-results-in-high-patient-satisfaction-and-favorable-clinical-outcome-in-post-traumatic-myelopathy-patients
#8
Ulrika Holmström, Parmenion P Tsitsopoulos, Hjalmar Flygt, Anders Holtz, Niklas Marklund
STUDY DESIGN: Retrospective data collection and patient-reported outcome measures. OBJECTIVES: To investigate surgical outcome, complications, and patient satisfaction in patients with chronic SCI and symptomatic post-traumatic progressive myelopathy (PPM) who underwent neurosurgical untethering and/or spinal cord cyst drainage with the aim of preventing further neurological deterioration. SETTING: Single-center study at an academic neurosurgery department...
March 27, 2018: Spinal Cord
https://www.readbyqxmd.com/read/29557532/cisterna-magna-arachnoid-membrane-suturing-decreases-incidence-of-pseudomeningocele-formation-and-incisional-csf-leakage
#9
David Pitskhelauri, Elina Kudieva, Dmitrii Moshchev, Evgeny Ananev, Michail Shifrin, Gleb Danilov, Tatiana Melnikova-Pitskhelauri, Igor Kachkov, Andrey Bykanov, Alexander Sanikidze
OBJECTIVE: A pseudomeningocele and an incisional cerebrospinal fluid leak are considered frequent complications following neurosurgical operations. The rate of these complications especially increases following neurosurgical procedures on the posterior cranial fossae. According to some publications, the rate of pseudomeningoceles has been reported as high as 40%, whereas that of incisional cerebrospinal fluid leaks is up to 17%. For the purposes of reducing the risk of these complications after a midline suboccipital craniotomy, we propose suturing the arachnoid membrane of the cisterna magna...
March 20, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29554379/effectiveness-of-the-thoracic-pedicle-screw-placement-using-the-virtual-surgical-training-system-a-cadaver-study
#10
Yang Hou, Yanping Lin, Jiangang Shi, Huajiang Chen, Wen Yuan
BACKGROUND: The virtual simulation surgery has initially exhibited its promising potentials in neurosurgery training. OBJECTIVE: To evaluate effectiveness of the Virtual Surgical Training System (VSTS) on novice residents placing thoracic pedicle screws in a cadaver study. METHODS: A total of 10 inexperienced residents participated in this study and were randomly assigned to 2 groups. The group using VSTS to learn thoracic pedicle screw fixation was the simulation training (ST) group and the group receiving an introductory teaching session was the control group...
March 14, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29554126/spatio-spectral-classification-of-hyperspectral-images-for-brain-cancer-detection-during-surgical-operations
#11
Himar Fabelo, Samuel Ortega, Daniele Ravi, B Ravi Kiran, Coralia Sosa, Diederik Bulters, Gustavo M Callicó, Harry Bulstrode, Adam Szolna, Juan F Piñeiro, Silvester Kabwama, Daniel Madroñal, Raquel Lazcano, Aruma J-O'Shanahan, Sara Bisshopp, María Hernández, Abelardo Báez, Guang-Zhong Yang, Bogdan Stanciulescu, Rubén Salvador, Eduardo Juárez, Roberto Sarmiento
Surgery for brain cancer is a major problem in neurosurgery. The diffuse infiltration into the surrounding normal brain by these tumors makes their accurate identification by the naked eye difficult. Since surgery is the common treatment for brain cancer, an accurate radical resection of the tumor leads to improved survival rates for patients. However, the identification of the tumor boundaries during surgery is challenging. Hyperspectral imaging is a non-contact, non-ionizing and non-invasive technique suitable for medical diagnosis...
2018: PloS One
https://www.readbyqxmd.com/read/29547143/walter-edward-dandy-1886-1946-the-epitome-of-adroitness-and-dexterity-in-neurosurgery
#12
Kalyan B Bhattacharyya
Walter Edward Dandy did pioneering work in Neurosurgery in the early part of the 19th century. He worked all his life at the Johns Hopkins Hospital in USA and contributed extensively to research in hydrocephalus, the physiology of the cerebrospinal fluid and devised the technique of pneumoencephalography, apart from performing the first clipping operation in cerebral aneurysm and the division of the trigeminal nerve in neuralgic pain. This article summarizes his immense contributions in the field of Neurosurgery...
March 2018: Neurology India
https://www.readbyqxmd.com/read/29544791/blood-vessel-segmentation-algorithms-review-of-methods-datasets-and-evaluation-metrics
#13
REVIEW
Sara Moccia, Elena De Momi, Sara El Hadji, Leonardo S Mattos
BACKGROUND: Blood vessel segmentation is a topic of high interest in medical image analysis since the analysis of vessels is crucial for diagnosis, treatment planning and execution, and evaluation of clinical outcomes in different fields, including laryngology, neurosurgery and ophthalmology. Automatic or semi-automatic vessel segmentation can support clinicians in performing these tasks. Different medical imaging techniques are currently used in clinical practice and an appropriate choice of the segmentation algorithm is mandatory to deal with the adopted imaging technique characteristics (e...
May 2018: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/29536207/bypass-in-neurosurgery-indications-and-techniques
#14
REVIEW
L Wessels, N Hecht, P Vajkoczy
Since the introduction of cerebral bypass surgery by Professor Yasargil in 1967, a plethora of literature has been published on direct cerebral revascularization. Against this background, it is remarkable that at present, only three randomized controlled trials (RCTs) exist in the field, both dealing with extracranial to intracranial bypass surgery for flow augmentation in patients at risk to suffer ischemic or hemorrhagic stroke due to cerebrovascular disease. Next to flow augmentation, the other main indication for bypass surgery is to provide flow replacement following proximal vessel sacrifice for treatment of complex aneurysms or skull base tumors...
March 13, 2018: Neurosurgical Review
https://www.readbyqxmd.com/read/29534420/-implement-of-multimodal-navigation-based-virtual-reality-in-the-needle-biopsy-of-intracranial-eloquent-lesions
#15
J S Zhang, L Qu, Q Wang, Q P Gui, Y Z Hou, G C Sun, F Y Li, Z Z Zhang, X L Chen, J Zhang, Z H Sun, X G Yu, B N Xu
Objective: To investigate the clinical value of multimodal navigation-based virtual reality (MNVR) in the needle biopsy of intracranial eloquent lesions. Methods: From January 2016 to January 2017, 20 patients with intracranial deep-seated lesions involving eloquent brain areas underwent MNVR-aided needle biopsy at Department of Neurosurgery, People's Liberation Army General Hospital. Preoperatively, MNVR was used to propose and revise the biopsy planning. Intraoperatively, navigation helped trajectory avoid the eloquent structures...
March 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29531882/creating-a-student-centered-learning-environment-implementation-of-problem-based-learning-to-teach-microbiology-to-undergraduate-medical-students
#16
Venkataramana Kandi, Parimala Reddy Basireddy
Introduction Medical education involves training necessary to become a physician or a surgeon. This includes various levels of training like undergraduate, internship, and postgraduate training. Medical education can be quite complex, since it involves training in pre-clinical subjects (anatomy, physiology, biochemistry), the para-clinical subjects (microbiology, pathology, pharmacology, and forensic medicine), and a discrete group of clinical subjects that include general medicine, surgery, obstetrics and gynaecology, ear, nose and throat specialization, paediatrics, cardiology, pulmonology, dermatology, ophthalmology, and orthopaedics, and many other clinical specializations and super specialities (cardio-thoracic surgery, neurosurgery, etc...
January 5, 2018: Curēus
https://www.readbyqxmd.com/read/29529913/smartphone-assisted-minimally-invasive-neurosurgery
#17
Mauricio Mandel, Carlo Emanuel Petito, Rafael Tutihashi, Wellingson Paiva, Suzana Abramovicz Mandel, Fernando Campos Gomes Pinto, Almir Ferreira de Andrade, Manoel Jacobsen Teixeira, Eberval Gadelha Figueiredo
OBJECTIVE Advances in video and fiber optics since the 1990s have led to the development of several commercially available high-definition neuroendoscopes. This technological improvement, however, has been surpassed by the smartphone revolution. With the increasing integration of smartphone technology into medical care, the introduction of these high-quality computerized communication devices with built-in digital cameras offers new possibilities in neuroendoscopy. The aim of this study was to investigate the usefulness of smartphone-endoscope integration in performing different types of minimally invasive neurosurgery...
March 13, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29501044/sphenoid-meningioma-enplaque-with-proptosis-surgical-excision-reconstruction-and-outcome
#18
Abdelhakeem A Essa, Ali R Hamdan
OBJECTIVE: To evaluate surgical outcome and reconstruction of bone defects after excision of sphenoid meningioma enplaque. PATIENT AND METHODS: Between June 2012 and May 2016, a series of 15 patients presented by proptosis attended to neurosurgery departments, Assiut university hospital, Qena university hospital, South Valley University and, These patients were diagnosed with sphenoid meningioma enplaque by fulfilling its criteria by neuroimaging (sheet-like meningioma and hyperostosis)...
February 21, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29499015/electrical-stimulation-mapping-of-the-brain-basic-principles-and-emerging-alternatives
#19
Anthony L Ritaccio, Peter Brunner, Gerwin Schalk
The application of electrical stimulation mapping (ESM) of the brain for clinical use is approximating a century. Despite this long-standing history, the value of ESM for guiding surgical resections and sparing eloquent cortex is documented largely by small retrospective studies, and ESM protocols are largely inherited and lack standardization. Although models are imperfect and mechanisms are complex, the probabilistic causality of ESM has guaranteed its perpetuation into the 21st century. At present, electrical stimulation of cortical tissue is being revisited for network connectivity...
March 2018: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/29495222/-the-curative-effect-analysis-of-unilateral-subfrontal-combined-with-interhemispheric-approach-on-the-microsurgery-of-large-anterior-skull-base-meningioma
#20
X L Zheng, Z Q Jiang, Y Han, T Sun, T Zhang, S J Zhang, F Y Lou
Objective: To explore the surgical technique and curative effect of microsurgical resection of large anterior skull base meningioma via unilateral subfrontal and interhemispheric approach. Method: The clinical data of 14 patients with large anterior skull base meningioma who received surgical treatment in the Department of neurosurgery in First Affiliated Hospital of Bengbu Medical College from April 2015 to September 2017 were analysed retrospectively.Of 9 cases were olfactory groove meningioma and 5 cases were tuberculum sellae meningioma...
February 13, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
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