Clinical Assessment and Lesion-Specific Management of Orbital Vascular Malformations
J Neurol Surg B Skull Base 2021; 82: 116-128 DOI: 10.1055/s-0040-1722702The systematic classification of vascular disease as proposed and refined by the International Society for the Study of Vascular Anomalies (ISSVA) divides vascular pathology first into tumors and malformations. Malformations are described as simple and complex, where simple malformations contain a single vascular system and complex malformations comprised of multiple vascular systems. Arteriovenous malformations are considered in terms of inflow characteristics which are primarily responsible for the key management challenges. Management utilizing endo...
Source: Journal of Neurological Surgery Part B: Skull Base - March 23, 2021 Category: Neurosurgery Authors: Rootman, Daniel B. Diniz, Stefania B. Cohen, Liza M. Tags: Typical Orbital Pathologies Source Type: research

Orbital Surgery-Part 2
J Neurol Surg B Skull Base 2021; 82: 001-001 DOI: 10.1055/s-0041-1726099 Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 23, 2021 Category: Neurosurgery Authors: Kraus, Dennis H. Link, Michael J. Tags: Foreword Source Type: research

Gross Total Resection of a Recurrent in-and-around Cavernous Sinus Meningioma through a Combined Transcavernous Anterior and Middle Infratemporal Fossa Approach with Extracranial-Intracranial Bypass
Conclusion Although cerebral bypass surgery is a technically challenging procedure, it plays an important role in the surgical management of the complex vessel-engulfing tumor.The link to the video can be found at https://youtu.be/GCmpxK3hW18. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  open access Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 18, 2021 Category: Neurosurgery Authors: Nonaka, Yoichi Hayashi, Naokazu Fukushima, Takanori Tags: Skull Base: Operative Videos Source Type: research

Craniovertebral Junction Lesions (Part 2)
J Neurol Surg B Skull Base 2021; 82: S1-S1 DOI: 10.1055/s-0040-1721667 Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  open access Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 17, 2021 Category: Neurosurgery Authors: Liu, James K. Tags: Foreword Source Type: research

Three-Dimensional Exoscopic Temporal Bone Resections for Advanced Head and Neck Cancer
Conclusion In the largest case series of LTBR and STBR under exclusive 3D exoscopic visualization to date, we demonstrate the 3D exoscope is a feasible alternative to the operative microscope for LTBR and STBR. While oncologic outcomes remain to be clarified, it carries significant potential for use in complex oncologic procedures. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 15, 2021 Category: Neurosurgery Authors: Raymond, Mallory Soriano, Roberto M. Belcher, Ryan Pradilla, Gustavo Solares, C. Arturo Tags: Original Article Source Type: research

Comparison of Small Intestinal Submucosal Graft and Autologous Tissue in Prevention of CSF leak after Posterior Fossa Craniotomy
Conclusion The use of SISG as a component of complex skull base reconstruction after translabyrinthine tumor resection may help reduce CSF leak rates and need for further intervention. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 12, 2021 Category: Neurosurgery Authors: Totten, Douglas J. Manzoor, Nauman F. Yancey, Kristen L. Yawn, Robert J. Haynes, David S. Rivas, Alejandro Tags: Original Article Source Type: research

Do All Notochordal Lesions Require Proton Beam Radiotherapy? A Proposed Reclassification of Ecchordosis Physaliphora as Benign Notochord Cell Tumor
Conclusion EP is indistinguishable from BNCT. Both demonstrate markers of notochord cell lines without malignant features. Their management is also identical. We therefore propose grouping EP with BNCT. Close imaging surveillance is required for both as progression to chordoma remains an unquantified risk. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 12, 2021 Category: Neurosurgery Authors: Sooltangos, A ïsha Bodi, Istvan Ghimire, Prajwal Barkas, Konstantinos Al-Barazi, Sinan Thomas, Nick Maratos, Eleni C. Tags: Original Article Source Type: research

Anatomical Step-by-Step Dissection of Complex Skull Base Approaches for Trainees: Surgical Anatomy of the Middle Fossa Approaches and Anterior Petrosectomy, Surgical Principles, and Illustrative Cases
Conclusion The MF approaches are challenging. Operatively oriented skull base dissections provide a crucial foundation for learning these techniques. We describe comprehensive step-by-step approaches intended to develop familiarity in the cadaver laboratory and facilitate understanding of their potential for skull base disorders. Basic surgical principles are described to help in the operating room as well as illustrative cases. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full t...
Source: Journal of Neurological Surgery Part B: Skull Base - March 12, 2021 Category: Neurosurgery Authors: Salgado-Lopez, Laura Perry, Avital Graffeo, Christopher S. Carlstrom, Lucas P. Leonel, Luciano C.P.C. Driscoll, Colin L.W. Link, Michael J. Peris-Celda, Maria Tags: Original Article Source Type: research

Three-Dimensional Reconstruction of the Sphenoid Sinus Anatomy for Presurgical Planning with Free OSIRIX Software
Conclusion Our experience with the OSIRIX software from CTA as preoperative planning for endonasal pituitary surgery was valuable, because it gave us access in simple way to a free and reliable 3D image of the SS. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 12, 2021 Category: Neurosurgery Authors: Abarca-Olivas, Javier B ärtschi, Patrick Monjas-C ánovas, Irene Gonz ález-López, Pablo Garc ía-Garrigós, Elena S ánchez-Payá, Jose Moreno-L ópez, Pedro Tags: Original Article Source Type: research

Use of Radiofrequency Technology in Endonasal Skull Base and Transcranial Procedures
Conclusion Initial experience with radiofrequency ablation showed that it was a safe technique to use in both endonasal skull-base and transcranial procedures. It seemed particularly useful for highly vascularized tumors but a greater experience is needed to further clarify its role in these procedures. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 9, 2021 Category: Neurosurgery Authors: Tish, Shahed Habboub, Ghaith Borghei-Razavi, Hamid Woodard, Troy D. Sindwani, Raj Kshettry, Varun R. Recinos, Pablo F. Tags: Original Article Source Type: research

Impact of Type of Treatment Center and Access to Care on Mortality and Survival for Skull Base Chordoma and Chondrosarcoma
Conclusion Higher educational attainment and treatment at an academic facility were associated with decreased 90D mortality for patients with skull base chordoma and chondrosarcoma. For those with skull base chordoma, larger metro size, younger age, and private insurance were associated with prolonged survival; for those with chondrosarcoma, it was treatment at a high-volume or academic medical center, younger age, higher income or education, and private insurance. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Ab...
Source: Journal of Neurological Surgery Part B: Skull Base - March 9, 2021 Category: Neurosurgery Authors: Holtzman, Adam L. Bates, James E. Morris, Christopher G. Rutenberg, Michael S. Indelicato, Daniel J. Tavanaiepour, Daryoush Mendenhall, William M. Tags: Original Article Source Type: research

Transmastoid Trautman's Triangle Combined Low Retrosigmoid Approach for Foramen Magnum Meningiomas: Surgical Anatomy and Technical Note
Conclusion This transmastoid Trautman's triangle combined low retrosigmoid approach may represent a complement to treatment strategies for ventral and ventrolateral FMMs, particularly in patients with the potential for limited surgical positioning due to their being overweight, having a short neck and suffering from cerebellar tonsillar herniation. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 9, 2021 Category: Neurosurgery Authors: Di, Guangfu Zhou, Wei Fang, Xinyun Li, Qiang Sun, Lean Jiang, Xiaochun Tags: Original Article Source Type: research

Primary Calvarial Ewing Sarcoma: A Case Series
Conclusion Primary calvarial EWS is a rare entity. It usually affects patients in the first two decades of life. These tumors can be purely intracranial, causing raised intracranial pressure symptoms, which may exhibit rapidly enlarging subgaleal tumors with only cosmetic deformities or symptoms of both. Radical excision followed by adjuvant therapy may offer a favorable long-term outcome. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Sur...
Source: Journal of Neurological Surgery Part B: Skull Base - March 8, 2021 Category: Neurosurgery Authors: Mohindra, Sandeep Tripathi, Manjul Batish, Aman Kapoor, Ankur Patil, Ninad Ramesh Mahendru, Shaurya Ahuja, Chirag Chatterjee, Debajyoti Tags: Original Article Source Type: research

Vision Deterioration and Hydrocephalus: Rare Presentations of Vestibular Schwannoma and Evolution of Management
J Neurol Surg B Skull Base DOI: 10.1055/s-0041-1725032 Introduction The incidence of vestibular schwannoma is reported as 12 to 54 new cases per million per year, increasing over time. These patients usually present with unilateral sensorineural hearing loss, tinnitus, or vertigo. Rarely, these patients present with symptoms of hydrocephalus or vision changes. Objective The study aimed to evaluate the surgical management of vestibular schwannoma at a single institution and to identify factors that may contribute to hydrocephalus, papilledema, and the need for pre-resection diversion of cerebrospinal fluid. ...
Source: Journal of Neurological Surgery Part B: Skull Base - March 8, 2021 Category: Neurosurgery Authors: Keulen, Marte van Pace, Jonathan Burant, Christopher J. Penn, David L. Wilson, Betsy Ronald, Andrew Mowry, Sarah E. Megerian, Cliff A. Bambakidis, Nicholas C. Tags: Original Article Source Type: research

A Unique Subset: Idiopathic Intracranial Hypertension Presenting as Spontaneous CSF Leak of the Anterior Skull Base
Conclusion Spontaneous CSF leaks represent a distinct variant of IIH, distinguished by decreased prevalence of headaches, lack of visual deficits, and normal opening pressures. Delayed measurement of opening pressure after leak repair may be helpful to diagnose IIH. Permanent CSF diversion may be indicated in patients exhibiting significantly elevated opening pressures postoperatively, refractory symptoms of IIH, or recurrent CSF leak. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  ...
Source: Journal of Neurological Surgery Part B: Skull Base - March 8, 2021 Category: Neurosurgery Authors: Hong, Christopher S. Kundishora, Adam J. Elsamadicy, Aladine A. Vining, Eugenia M. Manes, R. Peter Omay, Sacit Bulent Tags: Original Article Source Type: research

Relationship between Signal Intensity of the Labyrinth and Cochleovestibular Testing and Morphologic Features of Vestibular Schwannoma
J Neurol Surg B Skull Base DOI: 10.1055/s-0041-1725035 Objectives The aim of this article was to evaluate the relationship between signal intensity of the labyrinth and vestibulocochlear function and morphologic features of vestibular schwannoma (VS). Design Cross-sectional Study. Setting Tertiary referral center. Participants Fifty-four patients with sporadic, untreated VS. Main Outcome Measure Signal intensity of the cochlea and vestibule (SIRc and SIRv: signal intensity of cochlea/vestibule compared with cerebellar signal intensity; AURc and AURv: SIRc/SIRv of the affected side co...
Source: Journal of Neurological Surgery Part B: Skull Base - March 8, 2021 Category: Neurosurgery Authors: Constanzo, Felipe Teixeira, Bernardo Corr êa de Almeida Sens, Patricia Escuissato, Dante Ramina, Ricardo Tags: Original Article Source Type: research

Novel Focal Therapeutic Hypothermia Device for Treatment of Acute Neurologic Injury: Large Animal Safety and Efficacy Trial
Conclusion The present study uses a large animal preclinical model to demonstrate the safety and efficacy of a novel, noninvasive device for the induction of robust and systemically safe hypothermia within the brain. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 8, 2021 Category: Neurosurgery Authors: Carlstrom, Lucas P. Perry, Avital Graffeo, Christopher S. Dai, Daying Ding, Yong H. Jakaitis, Daniel R. Lu, Aiming Rodgers, Seth Kreck, Thomas Hoofer, Kelly Gorny, Krzysztof R. Kadirvel, Ramanathan Kallmes, David F. Tags: Original Article Source Type: research

Orbital Surgical Guidelines —Clinical Evaluation
J Neurol Surg B Skull Base DOI: 10.1055/s-0040-1722699Orbital disorders may present with change in form or function or may be discovered incidentally during clinical or imaging evaluations. A standardized orbital clinical examination, with appropriate ancillary tests, is helpful in narrowing the differential diagnosis and in the development of plans for management, with an eye toward minimizing the morbidity of the disease or its treatment. Evaluation and management may best be performed with a multidisciplinary team, which has become more common in skull base surgery. [...] Georg Thieme Verlag KG Rüdigerstraße ...
Source: Journal of Neurological Surgery Part B: Skull Base - March 3, 2021 Category: Neurosurgery Authors: Krauss, Howard R. Tags: Review Article Source Type: research

Primary Dural Repair via an Endoscopic Endonasal Corridor: Preliminary Development of a 3D-Printed Model for Training
Conclusion The proposed model appears to be highly effective in enhancing the endoscopic skills and recapitulating the task of dural repair. Such a low-cost model may be especially important in enhancing endoscopic facility in countries/regions with limited access to cadaveric specimens. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 2, 2021 Category: Neurosurgery Authors: Nebor, Ivanna Hussein, Ahmed E. Montemagno, Kora Fumagalli, Rebecca Labiad, Ikrame Xu, Alice Anderson, Zoe Patil, Yash Sedaghat, Ahmad R. Forbes, Jonathan A. Tags: Original Article Source Type: research

Contemporary Surgical Management of Juvenile Nasopharyngeal Angiofibroma
Conclusion There have been significant changes regarding the management of patients with JNA compared with the previous Mayo Clinic experience. The EEA has become the preferred route over the transfacial approaches to treat JNA in selected patients who do not have intracranial extension. Preoperative embolization has aided in reducing the postoperative transfusion rates. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 2, 2021 Category: Neurosurgery Authors: Cohen-Cohen, Salomon Scheitler, Kristen M. Choby, Garret Janus, Jeffrey Moore, Eric J. Kasperbauer, Jan L. Cloft, Harry J. Link, Michael Gompel, Jamie J. Van Tags: Original Article Source Type: research

Medial Extension of Medial Sphenoid Wing Meningioma from the Anterior Clinoid Line: Does It Truly Affect the Surgical Outcome?
Conclusion The degree of medial extension of MSWM from the AC line has no statistically significant correlation with major postoperative complications, extent of resection, or clinical outcome. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 2, 2021 Category: Neurosurgery Authors: Arab, Ala Hawsawi, Aysha Bafaquh, Mohammed Orz, Yasser AlYamany, Mahmoud Alobaid, Abdullah Tags: Original Article Source Type: research

Complication Rates after Endoscopic Transsphenoidal Surgery for ACTH-Secreting Pituitary Adenomas: A Comparative Analysis with GH and Nonfunctioning Adenomas
Conclusion Complication rates were similar in all three adenoma groups, particularly concerning major infections, thrombotic events, postoperative cerebrospinal fluid (CSF) leak, and transient diabetes insipidus. Transient diabetes insipidus was related with adenoma size and intraoperative CSF leak. Despite postoperative bacterial sinusitis was statistically higher in the ACTH group, this data should be interpreted with caution given the low number of patients with this complication. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents &n...
Source: Journal of Neurological Surgery Part B: Skull Base - March 2, 2021 Category: Neurosurgery Authors: Aibar-Dur án, Juan Á. Oladotun-Anka, Michael Asencio-Cort és, Carlos Valassi, Elena Webb, Susan Gras-Cabrerizo, Juan R. Monserrat-Gili, Joan Rib ó, Pere Tresserras Mu ñoz-Hernández, Fernando Tags: Original Article Source Type: research

Orbital Surgical Guidelines: Pediatric Considerations
J Neurol Surg B Skull Base DOI: 10.1055/s-0040-1722637Pediatric orbital and skull base surgery comprises a wide array of tumors. An understanding of the location of the lesion, nature of the disease, and surrounding anatomy is paramount to surgical planning in these small spaces. The goals of pediatric skull base surgery are to avoid injury to the surrounding structures, minimize cosmetic deformities, and remove some or all of the tumors based on anticipated pathology and biologic cost of removal. Safe surgery on many of these tumors requires an understanding of the location of the lesion relative to the optic nerve or orb...
Source: Journal of Neurological Surgery Part B: Skull Base - March 1, 2021 Category: Neurosurgery Authors: Tran, Ann Q. Kazim, Michael Tags: Review Article Source Type: research

Facial Nerve Function Outcome and Risk Factors in Resection of Large Cystic Vestibular Schwannomas
Conclusion Our study confirmed that microsurgery of cystic VS has worse outcomes of facial nerve preservation and extent of resection compared with solid VS. Greater attention should be paid to the above-mentioned risk factors. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 1, 2021 Category: Neurosurgery Authors: Stastna, Daniela Mannion, Richard Axon, Patrick Moffat, David Andrew Donnelly, Neil Tysome, James R. Hardy, David G. Bance, Mahonar Joannides, Alexis Lawes, Indu Macfarlane, Robert Tags: Review Article Source Type: research

Orbital Surgery: Evolution and Revolution
This article traces the development of orbital surgery and its subsequent modifications. It also points out the importance of defining one’s goal before embarking on orbital surgery. Although generally considered part of ophthalmology, surgery on the orbit has been relatively neglected and not routinely practiced. This article reviews the history of development of orbital surgery, both the revolutionary ideas and the evolutionary changes. There are multiple orbital lesions that do not need to be treated with surgery at all. These days chemotherapy, radation therapy, or even immunotherapy may be more appropriate. The ...
Source: Journal of Neurological Surgery Part B: Skull Base - March 1, 2021 Category: Neurosurgery Authors: Newman, Steven A. Tags: Review Article Source Type: research

Long-Term Outcomes of the Electrically Unresponsive, Anatomically Intact Facial Nerve Following Vestibular Schwannoma Surgery
Conclusion Intraoperative conduction block does not condemn a patient to permanent FN palsy. There is potential for a degree of recovery comparable with those undergoing nerve grafting. Our data do not clearly support a policy of same-surgery or early-postoperative primary nerve grafting in the event of a complete conduction block, and instead we favor monitoring for recovery in an anatomically intact nerve. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal ...
Source: Journal of Neurological Surgery Part B: Skull Base - March 1, 2021 Category: Neurosurgery Authors: Shoakazemi, Alireza Feria, Alejandro Kanakis, Constantine E. Stapleton, Emma Pathmanaban, Omar N. Freeman, Simon R. Lloyd, Simon Rutherford, Scott A. King, Andrew Thomas Hammerbeck-Ward, Charlotte L. Tags: Original Article Source Type: research

Delayed Craniospinal Metastasis of Aggressive Nonfunctioning Pituitary Adenomas as Pituitary Carcinomas
Conclusion Delayed drop dural metastasis of pituitary carcinoma is becoming increasingly recognized. Surgical resection of the distant disease to confirm the diagnosis and relieve the mass effect, followed by temozolomide chemotherapy, is the current treatment of choice. The need for both long-term follow-up in patients with APA, and a high degree of suspicion toward dural-based radiographic findings is emphasized. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: J...
Source: Journal of Neurological Surgery Part B: Skull Base - March 1, 2021 Category: Neurosurgery Authors: Raghu, Ashley L. B. Everson, Megan C. Helal, Ahmed Kiyofuji, Satoshi Clarke, Michelle J. Link, Michael J. Tags: Original Article Source Type: research

Prevention of Superior Petrosal Vein Injury during Microvascular Decompression for Trigeminal Neuralgia: Operative Nuances
Conclusion MVD for the treatment of trigeminal neuralgia can be achieved safely without sacrificing the SPV. A key step is positioning the patient's vertex at a 10-degree elevation from the floor, which can ease venous return and loosen the SPV, making it less fragile to manipulation and providing a wider surgical corridor. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 1, 2021 Category: Neurosurgery Authors: Kim, Minsoo Park, Sang-Ku Lee, Seunghoon Lee, Jeong-A Park, Kwan Tags: Original Article Source Type: research

Multimodal Microvascular Mapping for Head and Neck, Skull Base Research and Education: An Anatomical Donor Study
Conclusion A final combination of BaSO4, 3% agar, and fluorescein proves to be a powerful and novel combination enabling CT imaging, fluorescence imaging, and dissection of vasculature. This paves the way for future translational research and education. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - March 1, 2021 Category: Neurosurgery Authors: House, Adrian E. Romano, Michael F. Orczykowski, Mary E. Zumwalt, Ann Devaiah, Anand K. Tags: Original Article Source Type: research

Putting the Pieces Back Together Optimizing Function and Appearance after Orbital Surgery
J Neurol Surg B Skull Base DOI: 10.1055/s-0040-1722631 Objectives To describe medical and surgical options and techniques for functional and aesthetic abnormalities after orbital surgery and multidisciplinary approaches that include the orbit. Design A review of current management options in outpatient clinics and ambulatory surgery centers with selected illustrative cases. The rationale for choosing specific medical and surgical interventions will be discussed with a focus on eyelid malposition and double vision. Setting Outpatient clinics and ambulatory surgery centers. Participants Patien...
Source: Journal of Neurological Surgery Part B: Skull Base - February 22, 2021 Category: Neurosurgery Authors: Cockerham, Kimberly Laplant, Jacquelyn Tags: Review Article Source Type: research

Cerebellopontine Angle Epidermoids: Comparative Results of Microscopic and Endoscopic Excision Using the Retromastoid Approach ”
Conclusion Endoscope assistance in CPE surgery is a useful addition to conventional microscopic retromastoid approach. Pure endoscopic excision in CPE is feasible, associated with a lesser duration of hospital stay, better extent of excision in selected cases, and it has a comparable cranial nerve morbidity profile albeit with a higher rate of CSF leak. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - February 22, 2021 Category: Neurosurgery Authors: Singh, Suyash Das, Kuntal Kanti Kumar, Krishna Rangari, Kamlesh Dikshit, Priyadarshi Bhaisora, Kamlesh Singh Sardhara, Jayesh Mehrotra, Anant Srivastava, Arun Kumar Jaiswal, Awadhesh Kumar Behari, Sanjay Tags: Original Article Source Type: research

Reconstructive Outcomes of Multilayered Closure of Large Skull Base Dural Defects Following Open Anterior Craniofacial Resection
Conclusion A standardized multilayered closure technique of dural graft matrix, pericranial flap, and MVFTT overlay in the reconstruction of large open anterior craniofacial dural defects can assist the reconstructive team in approaching these complex deformities and may help prevent postoperative complications. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - February 22, 2021 Category: Neurosurgery Authors: Shi, Justin Ayeni, Tokunbo Gallagher, Kathleen Kelly Patel, Akash J. Jalali, Ali Hernandez, David J. Haskins, Angela D. Sandulache, Vlad C. Sturgis, Erich M. Huang, Andrew T. Tags: Original Article Source Type: research

Occipital Neuralgia following Acoustic Neuroma Resection
Conclusion Our series demonstrates success with conservative management in some, but overall a minority (40%) of patients, reserving decompression only for refractory cases. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - February 22, 2021 Category: Neurosurgery Authors: Riedy, Loren N. Heiferman, Daniel M. Szujewski, Caroline C. Malina, Giselle EK. Rezaii, Elhaum G. Martin, Brendan Grahnke, Kurt A. Doerrler, Michael Leonetti, John P. Anderson, Douglas E. Tags: Original Article Source Type: research

Pathological Spectrum of Dura-Based Nonmeningothelial Lesions: 5 Years' Experience from a Tertiary Care Centre
Conclusion Awareness of the spectrum of nonmeningothelial dural lesions is useful for pathologists as well as the treating surgeon. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - February 22, 2021 Category: Neurosurgery Authors: Rao, Shilpa Chandran, Chitra Konar, Subhas Mahadevan, Anita Santosh, Vani Nandeesh, B N. Tags: Original Article Source Type: research

Retrosigmoid Craniectomy with a Layered Soft Tissue Dissection and Hydroxyapatite Reconstruction: Technical Note, Surgical Video, Regional Anatomy, and Outcomes
Conclusions The relevant regional anatomy and a revised technique for retrosigmoid craniectomy with reconstruction have been presented with acceptable results. Readers can consider this technique when using the retrosigmoid approach for pathology in the cerebellopontine angle. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - February 22, 2021 Category: Neurosurgery Authors: Magill, Stephen T. Lee, Young M. Rubio, Roberto R. Nguyen, Minh P. Heilman, Carl B. McDermott, Michael W. Tags: Original Article Source Type: research

Anatomic Considerations of Microvascular Free Tissue Transfer in Endoscopic Endonasal Skull Base Surgery
J Neurol Surg B Skull Base DOI: 10.1055/s-0041-1722935 Objective Though microvascular free tissue transfer is well established for open skull base reconstruction, normative data regarding flap design and inset after endoscopic endonasal skull base surgery (ESBS) is lacking. We aim to describe anatomical considerations of endoscopic endonasal inset of free tissue transfer of transclival (TC) and anterior cranial base resection (ACBR) defects. Design and Setting Radial forearm free tissue transfer (RFFTT) model. Participants Six cadaveric specimens. Main Outcome Measures Pedicle orientation, p...
Source: Journal of Neurological Surgery Part B: Skull Base - February 22, 2021 Category: Neurosurgery Authors: Mady, Leila J. Kaffenberger, Thomas M. Baddour, Khalil Melder, Katie Godse, Neal R. Gardner, Paul Snyderman, Carl H. Solari, Mario G. Kubik, Mark W. Wang, Eric W. Sridharan, Shaum Tags: Original Article Source Type: research

Anatomical Variants of Post-ganglionic Fibers within the Pterygopalatine Fossa: Implications for Endonasal Skull Base Surgery
Conclusion Neural communications between the PPG and the maxillary nerve were present in all specimens. A neural branch from V1 to the PPG potentially contributes additional postganglionic parasympathetic function to the lacrimal gland. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - February 22, 2021 Category: Neurosurgery Authors: Li, Lifeng London, Nyall R. Prevedello, Daniel M. Carrau, Ricardo L. Tags: Original Article Source Type: research

3D Printing for Complex Cranial Surgery Education: Technical Overview and Preliminary Validation Study
Conclusion: 3D printed models incorporating skull base approaches and/or pathologies provide a compelling addition to the complex cranial education armamentarium. Based on our preliminary analysis, 3D printed models offer substantial potential for pedagogical value as dissection guides, adjuncts to preoperative study and case preparation, or tools for approach selection training and evaluation. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurologica...
Source: Journal of Neurological Surgery Part B: Skull Base - February 22, 2021 Category: Neurosurgery Authors: Graffeo, Christopher S Perry, Avital Carlstrom, Lucas P Peris-Celda, Maria Alexander, Amy Dickens, Hunter J Holroyd, Michael J Driscoll, Colin L W Link, Michael J Morris, Jonathan Tags: Original Article Source Type: research

Keyhole Endoscopic-Assisted Transcervical Approach to the Upper and Middle Retrostyloid Parapharyngeal Space: An Anatomic Feasibility Study
Conclusion The novel MIKET approach provides in the cadaver straightforward access to the upper and middle retrostyloid PPS through a natural corridor without injuring important neurovascular structures. Our work sets the anatomical nuances and limitations that should guide future clinical studies to prove its efficacy and safety either as a stand-alone procedure or as an adjunct to other approaches, such as the endonasal endoscopic approach. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |&nbs...
Source: Journal of Neurological Surgery Part B: Skull Base - February 22, 2021 Category: Neurosurgery Authors: Eguiluz-Melendez, Aldo Torres-Bayona, Sergio Vega, Mar ía Belen Hern ández-Hernández, Vanessa Wang, Erik W. Snyderman, Carl H. Gardner, Paul A. Tags: Original Article Source Type: research

Estimating Risk of Pituitary Apoplexy after Resection of Giant Pituitary Adenomas
J Neurol Surg B Skull Base DOI: 10.1055/s-0041-1722993 Background Pituitary apoplexy after resection of giant pituitary adenomas is a rare but often cited morbidity associated with devastating outcomes. It presents as hemorrhage and/or infarction of residual tumor in the postoperative period. Because of its rarity, its incidence and consequences remain ill defined. Objective The aim of this study is to estimate the rate of postoperative pituitary apoplexy after resection of giant pituitary adenomas and assess the morbidity and mortality associated with apoplexy. Methods A systematic review of litera...
Source: Journal of Neurological Surgery Part B: Skull Base - February 22, 2021 Category: Neurosurgery Authors: Butterfield, John T. Araki, Takako Guillaume, Daniel Tummala, Ramachandra Caicedo-Granados, Emiro Tyler, Matthew A. Venteicher, Andrew S. Tags: Original Article Source Type: research

Systematic Review Comparing Open versus Endoscopic Surgery in Clival Chordomas and a 10-Year Single-Center Experience
Conclusion Although there is clear evidence in the literature that endoscopic approaches provide better rates of GTR with fewer overall complications compared to open surgery. However, there are still situations where endoscopy is not viable, and thus, open surgery should still be considered if required. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - February 22, 2021 Category: Neurosurgery Authors: Baig Mirza, Asfand Visagan, Ravindran Okasha, Mohamed Boardman, Timothy Martyn Maratos, Eleni Sinan, Barazi Thomas, Nick Tags: Original Article Source Type: research

Primary and Secondary Optic Nerve Sheath Meningioma
Conclusion A wide variety of radiotherapeutic and surgical treatment modalities for ONSM exist. The specific indications for each management strategy continue to be redefined. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - February 18, 2021 Category: Neurosurgery Authors: Solli, Elena Turbin, Roger E. Tags: Review Article Source Type: research

Primary Malignant Orbital Tumors
Conclusions Advances in imaging technologies and surgical techniques have facilitated the diagnosis and management of primary orbital malignancies. Evolution toward less invasive orbital surgery with focus on preservation and restoration of function is underway. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - February 18, 2021 Category: Neurosurgery Authors: Laplant, Jacquelyn Cockerham, Kimberly Tags: Review Article Source Type: research

Masses of the Lacrimal Gland: Evaluation and Treatment
J Neurol Surg B Skull Base DOI: 10.1055/s-0040-1722700Lacrimal gland lesions account for approximately 9 to 10% of all biopsied orbital masses. Potential causes include nongranulomatous and granulomatous inflammation, autoimmune disease, lymphoproliferative disorders, benign epithelial proliferation, malignant neoplasia, and metastatic disease. Inflammatory lesions and lymphoproliferative disorders are the most common and may be unilateral or bilateral; they may also be localized to the orbit or associated with systemic disease. Both benign and malignant epithelial lacrimal gland masses tend to be unilateral and involve th...
Source: Journal of Neurological Surgery Part B: Skull Base - February 18, 2021 Category: Neurosurgery Authors: Kim, Jane S. Liss, Jason Tags: Review Article Source Type: research

The Effect of Prescription Isodose Variation on Tumor Control and Toxicities in Stereotactic Radiosurgery for Sporadic Vestibular Schwannoma: Propensity Score-Matched Case –Control Study
This study aimed to compare tumor control (TC) and toxicities between treatment at 40% (IDL40) and 50% (IDL50). Methods and Materials Sporadic/unilateral VS patients treated with SRS dose 12 to 14 Gy and prescription isodose volume ≤10cm3 were included. Propensity score matching was applied to IDL40 cohort to generate an IDL50 companion cohort, adjusting for age and prescription isodose volume. After exclusion of patients with follow-up
Source: Journal of Neurological Surgery Part B: Skull Base - February 18, 2021 Category: Neurosurgery Authors: Teyateeti, Achiraya Graffeo, Christopher S. Perry, Avital Tryggestad, Eric J. Brown, Paul D. Pollock, Bruce E. Link, Michael J. Tags: Original Article Source Type: research

Morphological Measurement and Anatomical Variations of the Clivus Using Computed Tomography
Conclusions The anatomical variations of the clivus are rare and important for the oral and maxillofacial radiologist to make the differential diagnosis. These anatomical variations should not be confused with pathologic formations. The morphological measurements and anatomical variations of the clivus can be evaluated in detail on CT images. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - February 18, 2021 Category: Neurosurgery Authors: Serindere, Gozde Gunduz, Kaan Avsever, Hakan Tags: Original Article Source Type: research

Case Series of Skull Base Meningioma Resection in the Octogenarian Population
Conclusion Octogenarian patients were able to tolerate surgery for skull base meningiomas resection. This outcome data may be used to inform surgical decision and guide conversation with patients and their families. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - February 18, 2021 Category: Neurosurgery Authors: Kusyk, Dorian M. Mao, Gordon Dabecco, Rocco Yu, Alexander K. Tags: Original Article Source Type: research

Changes in the Options for Management of Prolactin Secreting Pituitary Adenomas
Conclusion This review supports the consideration of transsphenoidal surgery as an early intervention for some women with prolactin-secreting microadenoma. Indications include significant side effects of medical therapy and tumors that do not respond to standard medical management. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - February 18, 2021 Category: Neurosurgery Authors: Iuliano, Sherry L. Bi, Wenya Linda Laws, Edward R. Tags: Original Article Source Type: research

Sinonasal Symptoms and Self-Reported Health before and after Endoscopic Pituitary Surgery —A Prospective Study
Conclusions Although self-reported overall health improved, significant deterioration of rhinologic symptoms was seen 6 months after ETSS. This information is important for preoperative patient counselling. Further refinement of the surgical technique and follow-up strategies to reduce postoperative sinonasal morbidity could be of value, especially in patients who have undergone prior sinonasal surgery. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Ne...
Source: Journal of Neurological Surgery Part B: Skull Base - February 18, 2021 Category: Neurosurgery Authors: Hall én, Tobias Olsson, Daniel S Farahmand, Dan Esposito, Daniela Olofsson, Ann-Charlotte Jakobsson, Sofie Jakobsson Ung, Eva Sahlstrand-Johnson, Pernilla Johannsson, Gudmundur Skoglund, Thomas Bergquist, Henrik Tags: Original Article Source Type: research

Vascularized Pericranial Flap for Endonasal Anterior Skull Base Reconstruction
This study was conducted at Academic tertiary referral center. Participants A total of nine patients with advanced anterior cranial base malignancies were identified who were treated with a minimally invasive, endoscopic anterior craniofacial resection from the years 2011 to 2017. Due to the nature of the resection in these patients, nasoseptal flaps and inferior/middle turbinate flaps were unavailable or insufficient for anterior skull base defect repair. Each patient underwent reconstruction of the anterior cranial base defect using an anteriorly based pericranial flap harvested by bicoronal incision, and tunnele...
Source: Journal of Neurological Surgery Part B: Skull Base - February 18, 2021 Category: Neurosurgery Authors: Giurintano, Jonathan McDermott, Michael W. El-Sayed, Ivan H. Tags: Original Article Source Type: research