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Cranial base endoscopic surgery

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https://www.readbyqxmd.com/read/29339322/endoscopic-endonasal-craniofacial-surgery-for-recurrent-skull-base-meningiomas-involving-the-pterygopalatine-fossa-the-infratemporal-fossa-the-orbit-and-the-paranasal-sinus
#1
Masahiro Shin, Masaaki Shojima, Kenji Kondo, Hirotaka Hasegawa, Shunya Hanakita, Akihiro Ito, Taichi Kin, Nobuhito Saito
OBJECT: Skull base meningiomas carry a non-negligible risk of recurrence. In particular, those arising from the sphenoid wings or middle cranial fossa penetrate into extracranial regions, uncommonly showing massive expansion into the craniofacial regions on recurrence. The role of endoscopic endonasal surgery for those intractable lesions remains unclear. METHODS: We performed endoscopic endonasal craniofacial surgery for 8 recurrent meningiomas invading into the pterygopalatine fossa, infratemporal fossa, nasopharynx, paranasal sinus, or orbit, comprising 2 meningothelial and 1 fibrous meningiomas (WHO grade I), 3 atypical and 1 clear cell meningiomas (grade II), and 1 anaplastic meningioma (grade III)...
January 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29305118/endoscope-holders-in-cranial-neurosurgery-part-2-an-international-survey
#2
Dimitrios Paraskevopoulos, Shlomi Constantini, Jarnail Bal, Jonathan Roth
BACKGROUND: Following a prior systematic review of currently available endoscope holders (EH), we aspired to detect trends, task-specific preferences and pitfalls of EH in various cranial neuroendoscopic procedures. METHODS: A questionnaire was disseminated to members of the International Federation of Neuroendoscopy (IFNE). The questionnaire evaluated indications and pitfalls of EH in different applications, in particular, differentiating between intraventricular and skull base endoscopy, as well as sub-categories of these two main fields...
January 2, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29280026/management-of-non-functioning-pituitary-adenomas-surgery
#3
REVIEW
David L Penn, William T Burke, Edward R Laws
Non-functional pituitary adenomas (NFPAs) are benign tumors of the pituitary gland that do not over-secrete hormonal products, therefore, they are generally detected through symptoms of mass effect, including headache, vision loss, or hypopituitarism. There are multiple pathological subtypes of NFPAs, such as null cell adenomas, silent gonadotrophs, silent somatotrophs, silent corticotrophs, and silent subtype 3, all of which can be classified based on immunohistochemical studies and electron microscopy. Despite these numerous pathological subtypes, surgical resection remains the first-line treatment for NFPAs...
December 26, 2017: Pituitary
https://www.readbyqxmd.com/read/29243982/endoscopic-transorbital-superior-eyelid-approach-anatomical-study-from-a-neurosurgical-perspective
#4
Alberto Di Somma, Norberto Andaluz, Luigi Maria Cavallo, Matteo de Notaris, Iacopo Dallan, Domenico Solari, Lee A Zimmer, Jeffrey T Keller, Mario Zuccarello, Alberto Prats-Galino, Paolo Cappabianca
OBJECTIVE Recent studies have proposed the superior eyelid endoscopic transorbital approach as a new minimally invasive route to access orbital lesions, mostly in otolaryngology and maxillofacial surgeries. The authors undertook this anatomical study in order to contribute a neurosurgical perspective, exploring the anterior and middle cranial fossa areas through this purely endoscopic transorbital trajectory. METHODS Anatomical dissections were performed in 10 human cadaveric heads (20 sides) using 0° and 30° endoscopes...
December 15, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29237926/endoscopic-approach-to-remove-intra-extracranial-tumors-in-various-skull-base-regions-10-year-experience-of-a-single-center
#5
Qiu-Hang Zhang, Zhen-Lin Wang, Hong-Chuan Guo, Feng Kong, Bo Yan, Ming-Chu Li, Ge Chen, Jian-Tao Liang, Yu-Hai Bao, Feng Ling
BACKGROUND: Some problems have been found in the usually adopted combined approach for the removal of intra-extracranial tumors in skull base. Herein, we described a pure endoscopic transnasal or transoral approach (ETA) for the removal of intra-extracranial tumors in various skull base regions. METHODS: Retrospectively, clinical data, major surgical complications, pre- and postoperative images, and follow-up information of a series of 85 patients with intra-extracranial tumors in various skull base regions who were treated by surgery via ETA in our skull base center during the past 10 years were reviewed and analyzed...
December 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/29204309/laser-application-in-neurosurgery
#6
REVIEW
Evgenii Belykh, Kaan Yagmurlu, Nikolay L Martirosyan, Ting Lei, Mohammadhassan Izadyyazdanabadi, Kashif M Malik, Vadim A Byvaltsev, Peter Nakaji, Mark C Preul
Background: Technological innovations based on light amplification created by stimulated emission of radiation (LASER) have been used extensively in the field of neurosurgery. Methods: We reviewed the medical literature to identify current laser-based technological applications for surgical, diagnostic, and therapeutic uses in neurosurgery. Results: Surgical applications of laser technology reported in the literature include percutaneous laser ablation of brain tissue, the use of surgical lasers in open and endoscopic cranial surgeries, laser-assisted microanastomosis, and photodynamic therapy for brain tumors...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29130555/ethmoidal-adenocarcinoma-treated-by-exclusive-endoscopic-approach-focus-on-learning-curve-and-modification-of-management
#7
Natalie Oker, Benjamin Verillaud, Michel Wassef, Sébastien Froelich, Damien Bresson, Romain Kania, Philippe Herman
BACKGROUND: The purpose of this study was to investigate the outcome and recurrences for ethmoidal adenocarcinomas treated by exclusive endoscopic surgery in curative intent and investigate the role of the learning curve. METHODS: We conducted a single-center retrospective study, including 60 patients separated in 2 groups (2002-2011 n = 28 and 2012-2015 n = 32). RESULTS: The global survival rate at 5 years was 72.6%, and the global and local recurrence rates were 21...
November 11, 2017: Head & Neck
https://www.readbyqxmd.com/read/29032218/the-hypoglossal-nerve-anatomical-study-of-its-entire-course
#8
Giorgio Iaconetta, Domenico Solari, Alessandro Villa, Clotilde Castaldo, Rosa Maria Gerardi, Gianluigi Califano, Stefania Montagnani, Paolo Cappabianca
OBJECT: Only a few anatomic studies concerning the entire course of the hypoglossal nerve (cranial nerve XII) have been reported. The purpose of the present study is to analyze all the relationships of the XII nerve with the surrounding structures from the brainstem to the tongue through a microscopic perspective. A comprehensive anatomically and clinically oriented classification of its different segments is proposed. METHODS: Ten formalin-fixed adult human cadaveric heads (20 sides) were dissected with the aim to explore the entire course of the XII cranial nerve via the lateral suboccipital, the far lateral partial or total transcondilar routes...
October 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28987843/the-endoscopic-buccal-fat-pad-flap-for-closure-of-skull-base-defects-a-report-of-five-cases
#9
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/28967307/introduction-surgical-management-of-skull-base-meningiomas
#10
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/28922880/a-side-door-to-meckel-s-cave-anatomic-feasibility-study-for-the-lateral-transorbital-approach
#11
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/28922233/endoscopic-versus-open-repair-for-craniosynostosis-in-infants-using-propensity-score-matching-to-compare-outcomes-a-multicenter-study-from-the-pediatric-craniofacial-collaborative-group
#12
Douglas R Thompson, David Zurakowski, Charles M Haberkern, Paul A Stricker, Petra M Meier
BACKGROUND: The North American Pediatric Craniofacial Collaborative Group (PCCG) established the Pediatric Craniofacial Surgery Perioperative Registry to evaluate outcomes in infants and children undergoing craniosynostosis repair. The goal of this multicenter study was to utilize this registry to assess differences in blood utilization, intensive care unit (ICU) utilization, duration of hospitalization, and perioperative complications between endoscopic-assisted (ESC) and open repair in infants with craniosynostosis...
September 14, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28875119/indocyanine-green-fluorescence-to-evaluate-nasoseptal-flap-viability-in-endoscopic-endonasal-cranial-base-surgery
#13
Edward E Kerr, Ali Jamshidi, Ricardo L Carrau, Raewyn G Campbell, Leo F Ditzel Filho, Bradley A Otto, Daniel M Prevedello
Objectives  The pedicled nasoseptal flap (NSF) has dramatically reduced postoperative cerebrospinal fluid leakage following endoscopic endonasal approach (EEA) surgery. Although rare, its arterial supply may be damaged during harvest or may be preoperatively damaged for numerous reasons. Early recognition permits harvesting a contralateral flap before sacrificing its pedicle as part of the surgical exposure or use of an alternative flap. Design  Technical feasibility study and case series. Setting  Tertiary care university-associated medical center...
October 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28867323/endoscopic-middle-cranial-fossa-reconstruction-via-a-subtemporal-keyhole-a-technical-note
#14
Fuminari Komatsu, Masaaki Imai, Akihiro Hirayama, Naokazu Hayashi, Shinri Oda, Masami Shimoda, Mitsunori Matsumae
BACKGROUND: Skull base reconstruction is an essential technique for repairing cerebrospinal fluid (CSF) leakage. A reliable method for middle cranial fossa (MCF) reconstruction with minimal invasiveness has not been reported. An initial case of endoscopic MCF reconstruction via a subtemporal keyhole is described. CASE DESCRIPTION: A 57-year-old man developed severe meningitis and was diagnosed with spontaneous CSF leakage from bone defects on the tegmen tympani...
August 31, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28862552/cavernous-sinus-compartments-from-the-endoscopic-endonasal-approach-anatomical-considerations-and-surgical-relevance-to-adenoma-surgery
#15
Juan C Fernandez-Miranda, Nathan T Zwagerman, Kumar Abhinav, Stefan Lieber, Eric W Wang, Carl H Snyderman, Paul A Gardner
OBJECTIVE Tumors with cavernous sinus (CS) invasion represent a neurosurgical challenge. Increasing application of the endoscopic endonasal approach (EEA) requires a thorough understanding of the CS anatomy from an endonasal perspective. In this study, the authors aimed to develop a surgical anatomy-based classification of the CS and establish its utility for preoperative surgical planning and intraoperative guidance in adenoma surgery. METHODS Twenty-five colored silicon-injected human head specimens were used for endonasal and transcranial dissections of the CS...
September 1, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28838112/endoscopic-endonasal-surgery-for-cranial-base-chondrosarcomas
#16
Francisco Vaz-Guimaraes, Juan C Fernandez-Miranda, Maria Koutourousiou, Ronald L Hamilton, Eric W Wang, Carl H Snyderman, Paul A Gardner
BACKGROUND: Microsurgical resection via open approaches is considered the main treatment modality for cranial base chondrosarcomas (CBCs). The use of endoscopic endonasal approaches (EEAs) has been rarely reported. OBJECTIVE: To present the endoscopic endonasal experience with CBCs at our institution. METHODS: Retrospective review of the medical records of 35 consecutive patients who underwent EEA for CBC resection between January 2004 and April 2013...
August 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28716164/collagen-matrix-as-an-inlay-in-endoscopic-skull-base-reconstruction
#17
G M Oakley, J M Christensen, M Winder, B P Jonker, A Davidson, T Steel, C Teo, R J Harvey
BACKGROUND: Multi-layer reconstruction has become standard in endoscopic skull base surgery. The inlay component used can vary among autografts, allografts, xenografts and synthetics, primarily based on surgeon preference. The short- and long-term outcomes of collagen matrix in skull base reconstruction are described. METHODS: A case series of patients who underwent endoscopic skull base reconstruction with collagen matrix inlay were assessed. Immediate peri-operative outcomes (cerebrospinal fluid leak, meningitis, ventriculitis, intracranial bleeding, epistaxis, seizures) and delayed complications (delayed healing, meningoencephalocele, prolapse of reconstruction, delayed cerebrospinal fluid leak, ascending meningitis) were examined...
July 18, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28686110/role-of-endoscopic-transnasal-surgery-for-skull-base-chondrosarcoma-a-retrospective-analysis-of-19-cases-at-a-single-institution
#18
Hirotaka Hasegawa, Masahiro Shin, Kenji Kondo, Shunya Hanakita, Akitake Mukasa, Taichi Kin, Nobuhito Saito
OBJECTIVE Skull base chondrosarcoma is one of the most intractable tumors because of its aggressive biological behavior and involvement of the internal carotid artery and cranial nerves (CNs). One of the most accepted treatment strategies for skull base chondrosarcoma has been surgical removal of the tumor in conjunction with proactive extensive radiation therapy (RT) to the original tumor bed. However, the optimal strategy has not been determined. The goal of this study was to evaluate the early results of endoscopic transnasal surgery (ETS)...
July 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28623412/long-term-follow-up-after-endoscopic-trans-sphenoidal-surgery-or-initial-observation-in-clivus-chordomas
#19
Jon Ramm-Pettersen, Radek Frič, Jon Berg-Johnsen
BACKGROUND: Resection of clivus chordomas through extensive skull base approaches is associated with high mortality and morbidity even in experienced hands. We report our experience with endoscopic trans-sphenoidal surgery, or a "wait-and-scan" strategy in selected patients. METHOD: Ten patients were diagnosed with clivus chordomas during an 8-year period. Six patients underwent primary treatment with endoscopic trans-sphenoidal surgery, followed by adjuvant proton-beam therapy in three of these patients...
October 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28540121/comprehensive-preoperative-staging-system-for-endoscopic-single-and-multicorridor-approaches-to-juvenile-nasal-angiofibromas
#20
Trichy N Janakiram, Shilpee B Sharma, Ekkehard Kasper, Onkar Deshmukh, Iype Cherian
BACKGROUND: Juvenile nasal angiofibromas (JNA) is a benign lesion with high vascularity and propensity of bone erosion leading to skull base invasion and intracranial extension. It is known to involve multiple compartments, which are often surgically difficult to access. With evolution in surgical expertise and technical innovations, endoscopic and endoscopic-assisted management has become the preferred choice of surgical management. Over the last four decades, various staging systems have been proposed, which are largely based on the extent of nasal angiofibroma...
2017: Surgical Neurology International
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