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Endoscopic skull base

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https://www.readbyqxmd.com/read/29049148/skull-base-neuroendoscopic-training-model-using-a-fibrous-injectable-tumor-polymer-and-the-nico-myriad
#1
Filippo Gagliardi, Anthony M Chau, Pietro Mortini, Anthony J Caputy, Cristian Gragnaniello
The Myriad is an innovative, high precision tool for tumor resection, designed to work within narrow endoscopic corridors. Due to its application in technically demanding situations, the learning curve associated with its use might be extremely challenging and time-consuming.The authors describe the application of an already validated training model, the skull base injectable tumor model (ITM), to allow trainees to practice with the use of the Myriad during endoscopic skull base procedures.A formalin embalmed cadaveric head was used for technical assessment...
October 18, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29048494/book-review-endoscopic-approaches-to-the-paranasal-sinuses-and-skull-base-a-step-by-step-anatomic-dissection-guide
#2
Benjamin Yim, Gabriel Zada
No abstract text is available yet for this article.
October 18, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28990255/role-of-surgery-in-the-treatment-of-osteoradionecrosis-and-its-complications-after-radiotherapy-for-nasopharyngeal-carcinoma
#3
Wen Bo Huang, Stanley Thian Sze Wong, Jimmy Yu Wai Chan
BACKGROUND: The purpose of this study was to review the efficacy of surgery for patients with osteoradionecrosis (ORN) after radiotherapy for nasopharyngeal carcinoma (NPC). METHODS: Between 2000 and 2016, we identified 162 patients with skull base ORN, among which 58 patients required surgery. A retrospective medical chart review was performed and the indications and results of surgical interventions were recorded. RESULTS: All surgeries were performed for the treatment of secondary complications of ORN, including central nervous system (CNS) infection (48...
October 9, 2017: Head & Neck
https://www.readbyqxmd.com/read/28987843/the-endoscopic-buccal-fat-pad-flap-for-closure-of-skull-base-defects-a-report-of-five-cases
#4
Daniel W Flis, John F Burke, Arnau Benet, Phillip Theodosopoulos, Manish Aghi, Ivan H El-Sayed
OBJECTIVE: To demonstrate the clinical utility of the buccal fat pad to close a variety of skull base defects. METHODS: A retrospective chart review of 5 consecutive patients who underwent endoscopic cranial base surgery with endoscopic harvest of BFPF pedicled along the internal maxillary artery for reconstruction of the skull base from October 2013 until November 2014. RESULTS: All 5 patients had complete take of the BFPFs with mucosalization on post-operative follow up with no reported complications or CSF leaks...
October 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28985669/establishment-of-next-generation-neurosurgery-research-and-training-laboratory-with-integrated-human-performance-monitoring
#5
Antonio Bernardo
Quality of neurosurgical care and patient outcomes are inextricably linked to surgical and technical proficiency and a thorough working knowledge of microsurgical anatomy. Neurosurgical laboratory-based cadaveric training is essential for the development and refinement of technical skills before their use on a living patient. Recent biotechnological advances including 3-dimensional (3D) microscopy and endoscopy, 3D printing, virtual reality, surgical simulation, surgical robotics, and advanced neuroimaging have proved to reduce the learning curve, improve conceptual understanding of complex anatomy, and enhance visuospatial skills in neurosurgical training...
October 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28967314/endoscopic-endonasal-pituitary-gland-hemi-transposition-for-resection-of-a-dorsum-sellae-meningioma
#6
Alaa S Montaser, Juan M Revuelta Barbero, Alexandre Todeschini, André Beer-Furlan, Russell R Lonser, Ricardo L Carrau, Daniel M Prevedello
A 69-year-old female with incidental diagnosis of a dorsum sellae meningioma had shown significant tumor growth after initial conservative management. The procedure started with a microscopic sublabial transsphenoidal approach to the sella and the suprasellar space. Due to limitations to a safe dissection and removal of the retrosellar component, the surgery was converted to a purely endoscopic endonasal approach with left hemi-transposition of the pituitary gland, followed by drilling of the dorsum sellae and removal of the left posterior clinoid process...
October 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28967307/introduction-surgical-management-of-skull-base-meningiomas
#7
Gabriel Zada, Mustafa K Başkaya, Mitesh V Shah
Meningiomas represent the most common primary intracranial neoplasm treated by neurosurgeons. Although multimodal treatment of meningiomas includes surgery, radiation-based treatments, and occasionally medical therapy, surgery remains the mainstay of treatment for most symptomatic meningiomas. Because of the intricate relationship of the dura mater and arachnoid mater with the central nervous system and cranial nerves, meningiomas can arise anywhere along the skull base or convexities, and occasionally even within the ventricular system, thereby mandating a catalog of surgical approaches that neurosurgeons may employ to individualize treatment for patients...
October 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28962038/site-specific-considerations-in-the-surgical-management-of-skull-base-chondrosarcomas
#8
Shaan M Raza, Paul W Gidley, Michael E Kupferman, Ehab Y Hanna, Shirley Y Su, Franco DeMonte
BACKGROUND: Numerous approaches have been reported in the management of skull base chondrosarcomas. Data are lacking for surgical outcomes by the tumor site of origin. OBJECTIVE: To provide insight into outcomes by site of origin and factors affecting resection in order to aid in surgical approach selection. METHODS: A retrospective review was conducted of 49 patients with chondrosarcoma treated at our institution. Charts were reviewed for tumor- and treatment-related factors...
September 9, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28943419/severe-cerebral-complications-secondary-to-perforation-injury-of-the-anterior-skull-base-during-sinonasal-surgery-an-underappreciated-problem
#9
Shadi Al-Afif, Elvis J Hermann, Gökce Hatipoglu Majernik, Makoto Nakamura, Peter Raab, Thomas Lenarz, Joachim K Krauss
OBJECTIVE: Functional endonasal sinus surgery (FESS) is widely practiced and is considered a generally safe procedure. Skull base injuries occur in less than 1% of procedures and are typically associated with cerebrospinal fluid leaks. Rarely, skull base injuries might result in cerebral lesions. Here we present a series of four patients with iatrogenic perforating injuries of the anterior skull base and cerebral lesions after routine FESS. METHODS: Four patients with iatrogenic perforating cerebral lesions after routine FESS performed at other institutions were referred to a tertiary neurosurgery department within a 10-year period...
September 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28938328/bulla-down-endoscopic-sphenoidotomy
#10
Mohannad Al-Qudah
Surgical approach to the sphenoid sinus is still one of the most challenging steps in sinus surgery. The author describes a novel, simple, and safe technique to access sphenoid sinus to manage isolated sphenoid pathologies or approach skull base by removing the bulla ethmoidalis and temporarily lateralizing the middle turbinate during endoscopic sinus surgery. The current approach provides an effective method to access the sphenoid sinus without increasing morbidity and avoids unnecessary possible complications associated with turbinates' resection...
September 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28931257/morphometric-analysis-of-the-middle-clinoid-process-using-maxillofacial-computed-tomography-scans
#11
Christopher Miller, Roukoz Chamoun, David Beahm
BACKGROUND: The interest in detailed anatomy of the sella and parasellar regions has resurged recently due to the wide clinical applications of the expanded endoscopic approaches to the skull base. The middle clinoid process (MCP) is a bony structure that can affect wide endoscopic exposure of the sella and parasellar region. OBJECTIVE: To study and analyze the anatomic variations of the MCP in the general population using computed tomography scans. METHODS: A total of 150 maxillofacial computed tomography scans were reviewed to characterize the MCP...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28931251/managing-arterial-injury-in-endoscopic-skull-base-surgery-case-series-and-review-of-the-literature
#12
Alicia Del Carmen Becerra Romero, Jagath Lal Gangadharan, Evan D Bander, Yves Pierre Gobin, Vijay K Anand, Theodore H Schwartz
BACKGROUND: The most feared complications following endoscopic endonasal skull base surgery are arterial vascular injuries. Previously published literature is restricted to internal carotid artery injuries. The ideal method for controlling arterial bleeding during this kind of procedure is debated, and a variety of techniques have been advocated. OBJECTIVE: To evaluate the management and outcome following intraoperative arterial injury during endoscopic endonasal skull base surgery...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28924072/-pre-and-intra-operative-supporting-technology-for-brain-tumors-11-microscopic-transcranial-and-endoscopic-transsphenoidal-approaches-for-resection-of-skull-base-tumors-in-the-cavernous-sinus
#13
https://www.readbyqxmd.com/read/28922927/book-review-endoscopic-approaches-to-the-paranasal-sinuses-and-skull-base-bernal-sprekelsen-manuel-alobid-isam-ensenat-joaquim-prats-galino-alberto-eds-endoscopic-approaches-to-the-paranasal-sinuses-and-skull-base-barcelona-thieme-2017-hard-cover-and-e-book
#14
https://www.readbyqxmd.com/read/28922880/a-side-door-to-meckel-s-cave-anatomic-feasibility-study-for-the-lateral-transorbital-approach
#15
Blake Harrison Priddy, Cristian Ferrareze Nunes, Andre Beer-Furlan, Ricardo Carrau, Iacopo Dallan, Daniel Monte-Serrat Prevedello
BACKGROUND: In the last decade, endoscopic skull base surgery has significantly developed and generated a plethora of techniques and approaches for access to the cranial ventral floor. However, the exploration for the least-aggressive, maximally efficient approach continues. OBJECTIVE: To describe in detail an anatomical study, along with the technical nuances of a novel endoscopic approach to Meckel's Cave (MC) using a lateral transorbital (LTO) route. METHODS: Eighteen orbits of injected cadaveric specimens were operated on, using an endoscopic LTO approach to MC, middle cranial fossa, and paramedian skull base preserving the orbital rim...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28922579/evaluating-real-time-effects-of-topical-1-1000-epinephrine-in-endoscopic-sinus-and-skull-base-surgery-on-hemodynamic-parameters-through-intraoperative-arterial-line-monitoring
#16
Michael T Yim, Omar G Ahmed, Masayoshi Takashima
BACKGROUND: Administration of topical 1:1000 epinephrine is commonly used in practice to achieve vasoconstriction during endoscopic sinus surgery and skull-base surgery; however, real-time effects on cardiovascular changes from systemic absorption have not been well studied. METHODS: Twenty-six patients undergoing endoscopic transsphenoidal resection of a pituitary lesion at a single institution were included into the study. Following arterial line placement by anesthesiology, 6 cottonoid pledgets soaked in 1:1000 epinephrine were placed into the bilateral nasal passages...
September 18, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28914866/-extended-endoscopic-endonasal-posterior-transclival-approach-to-tumors-of-the-clival-region-and-ventral-posterior-cranial-fossa-part-1-topographic-and-anatomical-features-of-the-clivus-and-adjacent-structures
#17
A N Shkarubo, K V Koval', G F Dobrovol'skiy, M A Shkarubo, V V Karnaukhov, B A Kadashev, D N Andreev, I V Chernov, O A Gadzhieva, O Yu Aleshkina, E A Anisimova, P L Kalinin, M A Kutin, D V Fomichev, O I Sharipov, D B Ismailov, E S Selivanov
OBJECTIVE: to describe the main topographic and anatomical features of the clival region and its adjacent structures for improvement and optimization of the extended endoscopic endonasal posterior (transclival) approach for resection of tumors of the clival region and ventral posterior cranial fossa. MATERIAL AND METHODS: We performed a craniometric study of 125 human skulls and a topographic anatomical study of heads of 25 cadavers, the arterial and venous bed of which was stained with colored silicone (the staining technique was developed by the authors) to visualize bed features and individual variability...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28887281/cerebrospinal-fluid-leak-rhinorrhea-after-systemic-erlotinib-chemotherapy-for-metastatic-lung-cancer-a-familiar-problem-from-an-unfamiliar-culprit
#18
Blake Priddy, Douglas A Hardesty, André Beer-Furlan, Bradley Otto, Daniel M Prevedello
BACKGROUND: Cerebrospinal fluid (CSF) rhinorrhea after medical therapy for pituitary prolactinoma is a rare but well-described phenomenon. To our knowledge, no CSF leaks have been reported after targeted medical treatment of pituitary or anterior skull base metastases. We report this unusual case to raise awareness of spontaneous CSF leaks in the setting of skull base metastatic disease. CASE PRESENTATION: A 66-year-old woman presented with epidermal growth factor receptor-mutant stage IV adenocarcinoma of the lung...
September 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28882714/combined-minimally-invasive-supraciliary-and-transfacial-approach-for-large-tumors-with-skull-base-and-sinonasal-involvement
#19
Pal Barzo, Zsolt Zador, Mihaly Bodosi, Zsolt Bella, Daniel Jambor, Bela Fulop, Jeno Czigner
BACKGROUND: Tumors invading both the anterior skull base and the sinonasal area have been traditionally accessed via largely invasive open craniofacial approaches. Minimally invasive extended endoscopic endonasal approaches have recently become increasingly available, but have anatomical limitations and require incremental experience and thus high patient volume. Our objective was to assess the applicability of a novel combination of the minimally invasive supraciliary incision and the limited maxillofacial osteotomy as a combined surgical approach for large tumors invading both the anterior skull base and the sinonasal area...
September 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28881251/registration-and-fusion-quantification-of-augmented-reality-based-nasal-endoscopic-surgery
#20
Yakui Chu, Jian Yang, Shaodong Ma, Danni Ai, Wenjie Li, Hong Song, Liang Li, Duanduan Chen, Lei Chen, Yongtian Wang
This paper quantifies the registration and fusion display errors of augmented reality-based nasal endoscopic surgery (ARNES). We comparatively investigated the spatial calibration process for front-end endoscopy and redefined the accuracy level of a calibrated endoscope by using a calibration tool with improved structural reliability. We also studied how registration accuracy was combined with the number and distribution of the deployed fiducial points (FPs) for positioning and the measured registration time...
August 3, 2017: Medical Image Analysis
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