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https://www.readbyqxmd.com/read/29117409/development-of-a-perfusion-based-cadaveric-simulation-model-integrated-into-neurosurgical-training-feasibility-based-on-reconstitution-of-vascular-and-cerebrospinal-fluid-systems
#1
Gabriel Zada, Joshua Bakhsheshian, Martin Pham, Mike Minneti, Eisha Christian, Jesse Winer, Aaron Robison, Bozena Wrobel, Jonathan Russin, William J Mack, Steven Giannotta
BACKGROUND: Novel methodologies providing realistic simulation of the neurosurgical operating room environment are currently needed, particularly for highly subspecialized operations with steep learning curves, high-risk profiles, and demands for advanced psychomotor skills. OBJECTIVE: To describe the development of a curriculum for using perfusion-based cadaveric simulation models in a "Mock Operating Room" for neurosurgical procedures. METHODS: At the USC Keck School of Medicine Fresh Tissue Dissection Laboratory between 2012 and 2016, 43 cadaveric specimens underwent cannulation of the femoral or carotid artery and artificial perfusion of the arterial system, and/or cannulation of the intradural cervical spine for intrathecal reconstitution of the cerebrospinal fluid (CSF) system...
May 13, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28959000/detection-of-small-bowel-tumor-in-wireless-capsule-endoscopy-images-using-an-adaptive-neuro-fuzzy-inference-system
#2
Mahdi Alizadeh, Omid Haji Maghsoudi, Kaveh Sharzehi, Hamid Reza Hemati, Alireza Kamali Asl, Alireza Talebpour
Automatic diagnosis tool helps physicians to evaluate capsule endoscopic examinations faster and more accurate. The purpose of this study was to evaluate the validity and reliability of an automatic post-processing method for identifying and classifying wireless capsule endoscopic images, and investigate statistical measures to differentiate normal and abnormal images. The proposed technique consists of two main stages, namely, feature extraction and classification. Primarily, 32 features incorporating four statistical measures (contrast, correlation, homogeneity and energy) calculated from co-occurrence metrics were computed...
September 26, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28931265/diagnostic-and-interventional-optical-angioscopy-in-ex-vivo-carotid-arteries
#3
Luis E Savastano, Neeraj Chaudhary, Carlos Murga-Zamalloa, Michael Wang, Thomas Wang, B Gregory Thompson
BACKGROUND: Angioscopy - or endovascular endoscopy - is a catheter-based technique employing a flexible fiberoptic angioscope to directly visualize arterial lumen. Poor resolution and excessive stiffness of pre-existent angioscopes limited their use clinically. Recent advances resulted in novel fused optical fiber bundle angioscopes with improved flexibility and imaging resolution. Use of these devices in endovascular neurosurgery is still largely unexplored. OBJECTIVE: To evaluate image quality and feasibility of optical angioscopes for diagnostic and interventional neuro-angioscopy in carotid arteries of human cadavers...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28688566/dysphagia-in-healthy-children-characteristics-and-management-of-a-consecutive-cohort-at-a-tertiary-centre
#4
Orysya Svystun, Wendy Johannsen, Rabin Persad, Justine M Turner, Carina Majaesic, Hamdy El-Hakim
OBJECTIVE: Whereas the literature is replete with reports on complex children with dysphagia (DP), the parameters characterizing non-neurologically impaired (NNI) children have been underreported, leaving a substantial knowledge gap. We set to characterize a consecutive cohort of NNI children, their management, and outcomes. METHODS: We undertook a retrospective case series. Children (<18 years old) attending a tertiary multidisciplinary swallowing clinic were eligible...
August 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28550275/detection-of-small-bowel-tumor-in-wireless-capsule-endoscopy-images-using-an-adaptive-neuro-fuzzy-inference-system
#5
Alizadeh Mahdi, Haji Maghsoudi Omid, Sharzehi Kaveh, Reza Hemati Hamid, Kamali Asl Alireza, Talebpour Alireza
Automatic diagnosis tool helps physicians to evaluate capsule endoscopic examinations faster and more accurate. The purpose of this study was to evaluate the validity and reliability of an automatic post-processing method for identifying and classifying wireless capsule endoscopic images, and investigate statistical measures to differentiate normal and abnormal images. The proposed technique consists of two main stages, namely, feature extraction and classification. Primarily, 32 features incorporating four statistical measures (contrast, correlation, homogeneity and energy) calculated from co-occurrence metrics were computed...
May 26, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28488603/role-of-neuro-endoscopy-and-fenestration-in-the-management-of-brain-cysts
#6
EDITORIAL
Iype Cherian
No abstract text is available yet for this article.
May 2017: Neurology India
https://www.readbyqxmd.com/read/27891396/endoscopic-excision-of-symptomatic-simple-bone-cyst-at-skull-base
#7
Prashant Gunawat, Salman Tehran Shaikh, Vikram Karmarkar, Chandrashekhar Deopujari, Nishit Shah
Seizure is a classical feature of intra axial brain parenchymal lesion. Simple bone cyst is an unusual bony pathology at skull base presenting with unexpected symptoms of complex partial seizures. Skull base neuro-endoscopy has managed such lesions more effectively with reduced post-operative morbidity as compared to transcranial approach. This case report discusses a 20-year-old male who presented with 3 episodes of seizure over a time period of 10 months. MRI brain revealed T1 hypo and T2 hyper intense cystic lesion in middle cranial fossa with no enhancement on contrast administration...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/26410199/design-and-validation-of-an-open-source-partial-task-trainer-for-endonasal-neuro-endoscopic-skills-development-indian-experience
#8
Ramandeep Singh, Britty Baby, Natesan Damodaran, Vinkle Srivastav, Ashish Suri, Subhashis Banerjee, Subodh Kumar, Prem Kalra, Sanjiva Prasad, Kolin Paul, Sneh Anand, Sanjeev Kumar, Varun Dhiman, David Ben-Israel, Kulwant Singh Kapoor
BACKGROUND: Box trainers are ideal simulators, given they are inexpensive, accessible, and use appropriate fidelity. OBJECTIVE: The development and validation of an open-source, partial task simulator that teaches the fundamental skills necessary for endonasal skull-base neuro-endoscopic surgery. METHODS: We defined the Neuro-Endo-Trainer (NET) SkullBase-Task-GraspPickPlace with an activity area by analyzing the computed tomography scans of 15 adult patients with sellar suprasellar parasellar tumors...
February 2016: World Neurosurgery
https://www.readbyqxmd.com/read/26311099/unilateral-hemilaminectomy-for-intradural-lesions
#9
Ralph J Mobbs, Monish M Maharaj, Kevin Phan, Prashanth J Rao
OBJECTIVE: Unilateral hemilaminectomy (UHIL), an alternative surgical approach to intradural lesions, involves a unilateral approach to meningeal opening that provides an adequate window for tumor extraction while leaving most of the vertebral structures intact. The techniques and results of a modified hemilaminectomy technique with spinal endoscopy is discussed and limited unilateral hemilaminectomy for intradural tumors (UHIT) evaluated prospectively. METHODS: Relevant clinical variables, operative reports, histological findings, pre- and post-operative imaging, and follow-up data for 11 consecutive patients (five males, six females; mean age 63...
August 2015: Orthopaedic Surgery
https://www.readbyqxmd.com/read/26071176/intraoperative-monitoring-by-imaging-and-electrophysiological-techniques-during-giant-intracranial-aneurysm-surgery
#10
REVIEW
A Durand, G Penchet, L Thines
Difficulties in giant intracranial aneurysm surgery are the consequence of aneurysmal wall histology and the complex angioarchitecture of the vascular tree. In order to reduce complications and risks of those procedures, various imaging and electrophysiological techniques can be implemented perioperatively. The authors review the principles, goals and main results in this context of micro-Doppler and flowmeter techniques, near-infrared spectroscopy, operative microscope-integrated indocyanine green video-angiography, neuro-endoscopy, selective intraoperative angiography and electrophysiological monitoring...
February 2016: Neuro-Chirurgie
https://www.readbyqxmd.com/read/25988050/an-unexpected-cause-of-orbital-apex-syndrome-in-an-immune-competent-elderly-male
#11
Harjit Singh, Ramesh Kandel, Sobia Nisar, Chandan J Das, Aparajit Ballav Dey
Invasive aspergillosis causing orbital apex syndrome (OAS) in an immune-competent individual is a very rare phenomenon, scarcely reported in medical literature. A 68-year-old male presented with progressive loss of vision in the right eye, starting after a cataract surgery. Neurological examination suggested OAS. Imaging was suggestive of mass lesion causing destruction of ethmoid bone. Biopsy of the lesion could not be done initially in view of its proximity to the major neuro-vascular bundle in the orbital apex and cavernous sinus and the major risk involved in the procedure relative to its yield...
September 2014: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/25968965/endoscopic-treatment-of-temporal-arachnoid-cysts-in-34-patients
#12
Tim Couvreur, Giorgio Hallaert, Tatjana Van Der Heggen, Edward Baert, Frank Dewaele, Jean-Pierre Kalala Okito, Dimitri Vanhauwaert, Marc Deruytter, Dirk Van Roost, Jacques Caemaert
INTRODUCTION: Arachnoid cysts are lesions present in 1% of the population and usually found in the temporal fossa. Clinical and radiologic presentations can differ greatly. Despite intensive research, it is still debatable which patients will benefit from surgery. OBJECTIVE: This study aims to investigate the pretreatment parameters influencing the outcome after neuroendoscopic treatment of temporal arachnoid cysts. MATERIALS AND METHODS: A retrospective analysis of 34 patients who underwent an endoscopic fenestration of a temporal arachnoid cyst between July 1991 and December 2013 was performed...
September 2015: World Neurosurgery
https://www.readbyqxmd.com/read/24768092/brainstem-auditory-evoked-potential-monitoring-and-neuro-endoscopy-two-tools-to-ensure-hearing-preservation-and-surgical-success-during-microvascular-decompression
#13
Cheng-Chia Lee, Chih-Hsiang Liao, Chun-Fu Lin, Tsui-Fen Yang, Sanford P C Hsu, Yu-Shu Yen, Yang-Hsin Shih
BACKGROUND: The effectiveness of microvascular decompression (MVD) has made trigeminal neuralgia (TN), hemifacial spasm (HFS), glossopharyngeal neuralgia, and other cranial nerve rhizopathy diseases treatable by surgery. To ensure hearing preservation and surgical success, we have presented our experience in the application of brainstem auditory evoked potential (BAEP) monitoring and neuro-endoscopy during MVD. METHODS: From July 2007 to October 2012, a total of 93 patients in our institution received MVD for cranial nerve rhizopathies...
June 2014: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/24702621/neuroendoscopic-lavage-for-the-treatment-of-intraventricular-hemorrhage-and-hydrocephalus-in-neonates
#14
COMPARATIVE STUDY
Matthias Schulz, Christoph Bührer, Anja Pohl-Schickinger, Hannes Haberl, Ulrich-Wilhelm Thomale
Object Neonatal intraventricular hemorrhage (IVH) may evolve into posthemorrhagic hydrocephalus and cause neurodevelopmental impairment. In this study, an endoscopic surgical approach directed toward the removal of intraventricular hematoma was evaluated for its safety and efficacy. Methods Between August 2010 and December 2012 (29 months), 19 neonates with posthemorrhagic hydrocephalus underwent neuro endoscopic lavage for removal of intraventricular blood remnants. During a similar length of time (29 months) from March 2008 to July 2010, 10 neonates were treated conventionally, initially using temporary CSF diversion via lumbar punctures, a ventricular access device, or an external ventricular drain...
June 2014: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/24440311/enteroscopy-for-the-early-detection-of-small-bowel-tumours-in-at-risk-celiac-patients
#15
Carolina Tomba, Luca Elli, Maria Teresa Bardella, Marco Soncini, Paolo Contiero, Leda Roncoroni, Martina Locatelli, Dario Conte
BACKGROUND: A subset of celiac patients shows a high risk for small bowel malignancies. AIMS: To select celiac patients considered at risk and evaluate the diagnostic yield of enteroscopy in this context. METHODS: Celiac patients were enrolled from a tertiary referral centre during the period June 2011-June 2013, based on the following criteria: (i) patients diagnosed when aged 50+ and with poor response to gluten-free dieting; (ii) low dietary compliance; (iii) alarm symptoms...
May 2014: Digestive and Liver Disease
https://www.readbyqxmd.com/read/24139488/mixed-adeno-neuro-endocrine-carcinoma-arising-from-the-ectopic-gastric-mucosa-of-the-upper-thoracic-esophagus
#16
Toshihiro Kitajima, Sachiko Kaida, Seigi Lee, Shusuke Haruta, Hisashi Shinohara, Masaki Ueno, Koichi Suyama, Yasunori Oota, Takeshi Fujii, Harushi Udagawa
We report a case of mixed adenoendocrine carcinoma of the upper thoracic esophagus arising from ectopic gastric mucosa. A 64-year-old man who had been diagnosed with an esophageal tumor on the basis of esophagoscopy was referred to our hospital. Upper gastrointestinal endoscopy revealed the presence of ectopic gastric mucosa and an adjacent pedunculated lesion located on the posterior wall of the upper thoracic esophagus. Subtotal esophagectomy with three-field lymph node dissection was performed. A microscopic examination revealed that there was a partially intermingling component of neuroendocrine carcinoma adjacent to a tubular adenocarcinoma which was conterminous with the area of the ectopic gastric mucosa...
2013: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/23866573/-endoscopic-endonasal-anterior-extended-transsphenoidal-approach-in-craniopharyngioma-surgery
#17
COMPARATIVE STUDY
P L Kalinin, D V Fomichev, M A Kutin, B A Kadashev, L I Astaf'eva, A B Kurnosov, K A Popugaev, L A Fomochkina, O F Tropinskaia
The paper describes results of treatment of 56 patients with suprasellar craniopharyngioma (stem, intra-extraventricular) who were operated in Burdenko Neurosurgical Institute using endoscopic endonasal anterior extended transsphenoidal approach. Assessed dynamics of major clinical syndromes (neuro-ophthalmological symptoms, neurological and hormonal status), radicality of surgery, incidence and nature of postoperative complications, postoperative mortality. A comparative analysis of the results obtained in previous studies of our Institute, as well as with those of foreign authors is performed...
2013: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/23611638/the-evolution-of-neurosurgery-how-has-our-practice-changed
#18
A S Kamat, A Parker
INTRODUCTION: Neurosurgery is a rapdily evolving speciality and has often taken a lead in adopting new technologies. Advancing technology however is not the only force driving change in this discipline. Other factors include an escalation in patient expectations, an increasing (and ageing) population and the prevailing economic conditions. The aim of our study was to analyse the trends in neurosurgical practice over a 10-year period. MATERIALS AND METHODS: The details of every neurosurgical procedure performed at Wellington Regional Hospital from 2001 to 2011 were prospectively recorded in a relational database...
December 2013: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/23390785/neuro-ophthalmic-manifestations-in-sinusitis-patients-who-underwent-endoscopic-sinus-surgery
#19
Kitthisak Kitthaweesin, Triyapa Theerakul
OBJECTIVE: To describe neuro-ophthalmic manifestations in sinusitis patients who underwent functional endoscopic sinus surgery MATERIAL AND METHOD: The medical records of 341 patients who underwent functional endoscopic sinus surgery (FESS) between October and January 2001 were reviewed in this retrospective study. RESULTS: Patient mean age was 37.09 years (range, 3-77) and 171 (50.15%) patients had no underlying disease. Visual loss and limited ocular motility were revealed in 43 (12...
December 2012: Journal of the Medical Association of Thailand, Chotmaihet Thangphaet
https://www.readbyqxmd.com/read/23235502/endoscopic-microvascular-decompression-a-stepwise-operative-technique
#20
Shih-Shan Lang, H Isaac Chen, John Y K Lee
BACKGROUND/AIMS: Microvascular decompression (MVD) of the trigeminal nerve is a widely accepted treatment for patients with trigeminal neuralgia caused by vascular compression. The neuroendoscope is rapidly becoming a complementary tool in minimally invasive neurosurgery of the ventral anterior skull base. Its adoption in the lateral approach to the posterior fossa has been slower and has been used primarily as an adjunct to conventional microscopic surgical techniques, e.g. endoscope-assisted microsurgery...
2012: ORL; Journal for Oto-rhino-laryngology and its related Specialties
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