Anatomic Assessment of the Limits of an Endoscopically Assisted Retrolabyrinthine Approach to the Internal Auditory Canal
Conclusion Using endoscopic assistance, the retrolabyrinthine approach can expose the entire IAC. We recommend at least 1.5 cm of retrosigmoid posterior fossa dura exposure for this approach. Although this strategy provides significantly less instrument freedom of motion in both the horizontal and vertical axes than the translabyrinthine approach, it may be appropriate for carefully selected patients with intact hearing and small-to–medium sized tumors involving the IAC. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thieme eJournals: Table of contents  |  Abstract&...
Source: Journal of Neurological Surgery Part B: Skull Base - May 26, 2020 Category: Neurosurgery Authors: Muelleman, Thomas J. Maxwell, Anne K. Peng, Kevin A. Brackmann, Derald E. Lekovic, Gregory P. Mehta, Gautam U. Tags: Original Article Source Type: research

Progressive Vestibular Schwannoma following Subtotal or Near-Total Resection: Dose-Escalated versus Standard-Dose Salvage Stereotactic Radiosurgery
Conclusions Dose-escalated SRS has similar local control of recurrent VS following progression after subtotal or near-total resection and does not appear to have higher neurologic sequalae. Larger studies are needed. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - May 26, 2020 Category: Neurosurgery Authors: Khattab, Mohamed H. Sherry, Alexander D. Manzoor, Nauman Totten, Douglas J. Luo, Guozhen Chambless, Lola B. Rivas, Alejandro Haynes, David S. Cmelak, Anthony J. Attia, Albert Tags: Original Article Source Type: research

Prognostic Impact of Adverse Pathologic Features in Sinonasal Squamous Cell Carcinoma
Conclusion Our single-institution experience of 48 patients suggests that high grade and LVI are independently associated with survival outcomes in sinonasal SCC, while PNI and microscopically positive margins do not have a significant impact. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - May 19, 2020 Category: Neurosurgery Authors: Parikh, Anuraag S. Fuller, Jennifer C. Lehmann, Ashton E. Goyal, Neerav Gray, Stacey T. Lin, Derrick T. Tags: Original Article Source Type: research

A Systematic Review of Closure Techniques in Lateral Skull Base Tumor Surgery
Conclusion There are a plethora of closure techniques for lateral skull base surgery. Several techniques were identified in this review that may affect the postoperative wound complication rates in lateral skull base surgery. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - May 19, 2020 Category: Neurosurgery Authors: Malone, Alexander Randall, Michael Boyev, K. Paul Tags: Original Article Source Type: research

Treatment of Trigeminal Neuralgia with “Microvascular Decompression Plus” Technique
Conclusion Sufficient MVD with nerve-combing for the treatment of TN may produce a high rate of cure with less recurrence. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - May 19, 2020 Category: Neurosurgery Authors: Liu, Ming-Xing Zhong, Jun Xia, Lei Dou, Ning-Ning Shi, Juanhong Tags: Original Article Source Type: research

Endoscopic Adipofascial Radial Forearm Free Flap Reconstruction of the Skull Base: A Technical Update
Conclusion Endoscopic adipofascial radial forearm free flap delivered to the skull base through a Caldwell–Luc/transbuccal corridor is a feasible option with a high success rate and low morbidity when other reconstructive attempts have failed. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - May 15, 2020 Category: Neurosurgery Authors: Pipkorn, Patrik Lee, Jake J. Zenga, Joseph Chicoine, Michael R. Tags: Original Article Source Type: research

Transvenous Onyx Embolization of Carotid-Cavernous Fistulas: Mid- and Long-Term Outcomes
Conclusion Transvenous Onyx embolization is a safe and effective treatment of CCFs when technical aspects to reduce complications are performed diligently. Our technique demonstrates safety of the Onyx as a stand-alone embolization for the treatment of CCF. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - May 15, 2020 Category: Neurosurgery Authors: Beer-Furlan, Andr é Joshi, Krishna C. Brahimaj, Bledi Lopes, Demetrius K. Tags: Original Article Source Type: research

Partial Gyrus Rectus Resection as a Technique to Improve the Exposure to the Anterior Communicating Artery Complex through the Junctional Triangle: A Quantitative Study
Conclusion GR resection improves exposure of bilateral A2 segments through the junctional triangle. Exposure improvement is greater for the ipsilateral A2 than contralateral A2. The junctional triangle concept is enhanced by partial GR resection during surgery for superior and posterior AComA aneurysms. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - May 5, 2020 Category: Neurosurgery Authors: Valli, Daniel Zhao, Xiaochun Belykh, Evgenii Sun, Qing Lawton, Michael T. Preul, Mark C. Tags: Original Article Source Type: research

Stereotactic Radiosurgery and Hypofractionated Stereotactic Radiotherapy for Nonfunctioning Pituitary Adenoma
Conclusions HSRT is an appropriate treatment strategy for patients with NFPAs, particularly for optic pathway preservation in the setting of large tumors with chiasm involvement. Further studies are needed to optimize fractionated approaches and patient selection. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - May 5, 2020 Category: Neurosurgery Authors: Khattab, Mohamed H. Sherry, Alexander D. Xu, Mark C. Kelly, Patrick Anderson, Joshua L. Luo, Guozhen Chambless, Lola B. Cmelak, Anthony J. Attia, Albert Tags: Original Article Source Type: research

Presentation Abstracts
J Neurol Surg B 2020; 81: A1- DOI: 10.1055/s-0040-1702292 Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - April 6, 2020 Category: Neurosurgery Tags: 30th Annual Meeting of the North American Skull Base Society Source Type: research

Outcomes of Transzygomatic Middle Cranial Fossa Approach for Skull Base Tumors —A Single Institutional Experience
Conclusion Various skull base tumors involving MCF with extension to adjacent sites can be successfully resected using the TZ-MCF approach in a multidisciplinary fashion. This approach yields optimal exposure and permits excellent tumor control with acceptable CN and neurological morbidity. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 28, 2020 Category: Neurosurgery Authors: Manzoor, Nauman F. Morone, Peter Kelly, Patrick D. Chotai, Silky Yawn, Robert J. Chambless, Lola B. Thompson, Reid C. Rivas, Alejandro Tags: Original Article Source Type: research

Delaying Postoperative Radiotherapy in Low-Grade Esthesioneuroblastoma: Is It Worth the Wait?
Conclusion In our limited cohort, immediate postoperative radiotherapy did not demonstrate superiority in tumor control, although risk of radiotherapy toxicity appears low. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 25, 2020 Category: Neurosurgery Authors: Kiyofuji, Satoshi Agarwal, Vijay Hughes, Joshua D. Foote, Robert L. Janus, Jeffrey R. Moore, Eric J. Giannini, Caterina Link, Michael J. Van Gompel, Jamie J. Tags: Original Article Source Type: research

Neurophysiological Characteristics of Cranial Nerves V- and VII-Triggered EMG in Endoscopic Endonasal Approach Skull Base Surgery
Conclusions Our data support the notion that onset latency may be a feasible parameter in the differentiation between the CN V and VII during the crosstalk phenomenon in EEA surgeries but the particularities of this type of procedure should be taken into consideration. A prospective analysis with a larger data set is necessary. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 25, 2020 Category: Neurosurgery Authors: Ferreira, Carla J.A. Sherer, Marcus Anetakis, Katherine Crammond, Donald J. Balzer, Jeffrey R. Thirumala, Parthasarathy D. Tags: Original Article Source Type: research

Erratum: Inferolateral Transorbital Approach to the Petrous Apex. An Adjunctive Approach to the EEA
J Neurol Surg B 2020; 81: e1-e1 DOI: 10.1055/s-0040-1708047 Georg Thieme Verlag KG Stuttgart · New YorkArticle 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, 2020 Category: Neurosurgery Authors: Ali, Moustafa Marin, Janmaris Prevedello, Daniel Otto, Bradley Cho, Ray Carrau, Ricardo Tags: Erratum Source Type: research

Navigation-Assisted Posterior Open Reduction and Internal Fixation in a C-CLAMP Fashion for an Isolated C1 Fracture
J Neurol Surg B DOI: 10.1055/s-0040-1701692C1 fractures with an intact transverse ligament are usually treated conservatively. Patients who present with a progressive diastasis of bone fragments and a progressive articular subluxation mainly attributed to progressive lengthening of the transverse ligament (TAL) fibers can be treated with a C1 “C-clamp” fusion.A 75-year-old male who sustained a motor vehicle accident was neurologically intact. A computed tomography (CT) imaging demonstrated a Jefferson's type-C1 fracture with a slight lateral displacement of the C1 left lateral mass (LM) and a rotatory subluxati...
Source: Journal of Neurological Surgery Part B: Skull Base - March 20, 2020 Category: Neurosurgery Authors: Starnoni, Daniele Ecker, Timo Barges-Coll, Juan Tags: Skull Base: Operative Videos Source Type: research

Basilar Invagination: Transoral Microsurgical Endoscopically-Controlled Odontoidectomy without Palatotomy in Extreme form of Basilar Invagination
Conclusions Palatotomy with its potential adverse effects can usually be avoided even for the treatment of extreme forms of basilar invagination.The link to the video can be found at: https://youtu.be/CBKE4n94W4g. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 20, 2020 Category: Neurosurgery Authors: Bassiouni, Hischam Tags: Skull Base: Operative Videos Source Type: research

The Clinical Implications of Spontaneous Hemorrhage in Vestibular Schwannomas
We describe our series of hemorrhagic VS (HVSs) and systematically reviewed the literature to better understand relevant clinical factors and outcomes. Methods Retrospective case review series and systematic review of the literature using PRISMA guidelines. Results Fifty-three patients with HVS met inclusion criteria. Compared with historical data for all VS, patients with HVS had relatively higher rates of perioperative mortality, significant preoperative facial weakness, and harbored relatively larger tumors. Regardless of the extent of resection (EOR), surgery for HVS resulted in significant improvement ...
Source: Journal of Neurological Surgery Part B: Skull Base - March 16, 2020 Category: Neurosurgery Authors: Hong, Christopher S. Jin, Lan David, Wyatt B. Shear, Brian Zhao, Amy Y. Zhang, Yawei Erson-Omay, E. Zeynep Fulbright, Robert K. Huttner, Anita Kveton, John Moliterno, Jennifer Tags: Original Article Source Type: research

Transtemporal Suprajugular Approach with Neck Dissection for Jugular Foramen Tumor Resection: Operative Video
J Neurol Surg B DOI: 10.1055/s-0040-1701680This video demonstrates the transmastoid suprajugular approach with neck dissection to a solitary fibrous tumor involving the jugular foramen and upper cervical region. This patient was a 39-year-old man who presented with dysphagia and cranial nerve (CN) XI and CN XII palsies. Imaging revealed a large homogenously enhancing lesion involving the jugular foramen and extending into the retropharyngeal space (Fig. 1). Radiographic findings supported a diagnosis of jugular foramen schwannoma. After an initial period of observation, the tumor demonstrated significant growth, and the pa...
Source: Journal of Neurological Surgery Part B: Skull Base - March 13, 2020 Category: Neurosurgery Authors: Sarris, Christina E. Stevens, Shawn M. Almefty, Kaith K. Tags: Skull Base: Operative Videos Source Type: research

Resection of a Recurrent Cervicomedullary Junction Fibromyxoid Sarcoma through a Far Lateral Approach
Conclusion Understanding the microsurgical anatomy of the craniocervical junction and ventrolateral brainstem and meticulous microneurosurgical technique are necessary to achieve adequate resection of lesions involving the ventrolateral brainstem. The far lateral approach provides an adequate corridor to this region.The link to the video can be found at: https://youtube/uYEhgPbgrTs. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 13, 2020 Category: Neurosurgery Authors: Nguyen, Vincent Mangham, William Basma, Jaafar Khan, Nickalus Sorenson, Jeffrey Michael, L. Madison Tags: Skull Base: Operative Videos Source Type: research

Far Lateral Approach for Resection of Transverse Ligament Cyst
Conclusion The far lateral approach provides an adequate corridor to the ventrolateral brainstem in combination with utilization of the dentate ligament to reach ventral cysts compressing the spinal cord. An adequate understanding of the relevant microsurgical anatomy is a key to safe surgery in this region.The link to the video can be found at: https://youtu.be/5MGVPO2Q2pI. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 13, 2020 Category: Neurosurgery Authors: Michael, Lattimore Madison Nguyen, Vincent Basma, Jaafar Mangham, William Khan, Nickalus Sorenson, Jeffrey Tags: Skull Base: Operative Videos Source Type: research

C1 Hemilaminectomy for Resection of Foramen Magnum Meningioma: 2-Dimensional Operative Video
We present a case of a sizeable foramen magnum meningioma that was resected through a C1 hemilaminectomy in prone (concorde) position. The patient is a 51-year-old woman with a 3-month history of progressive paresthesia of the upper and lower extremities, followed by gait disturbance, and hand apraxia. There was no complaint of nuchal pain.On magnetic resonance imaging (MRI) a briskly enhancing extra-axial, intradural craniospinal lesion, extending from the basion of the lower clivus, over the tectorial membrane to the middle of the axis' body was discovered. There was significant transposition and compression of the medul...
Source: Journal of Neurological Surgery Part B: Skull Base - March 13, 2020 Category: Neurosurgery Authors: Lieber, Stefan Evangelista-Zamora, Rocio Nunez, Maximiliano Tatagiba, Marcos Tags: Skull Base: Operative Videos Source Type: research

Integrating Stereoscopic Video with Modular 3D Anatomic Models for Lateral Skull Base Training
Conclusion This investigation provides proof of concept that a hybrid of stereoscopic video and VR simulation is possible, and that this tool may significantly aid lateral skull base trainees as they learn to navigate a complex 3D surgical environment. Future studies will validate methodology. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 13, 2020 Category: Neurosurgery Authors: Barber, Samuel R. Jain, Saurabh Son, Young-Jun Almefty, Kaith Lawton, Michael T. Stevens, Shawn M. Tags: Original Article Source Type: research

Outcomes in Pediatric Transsphenoidal Pituitary Surgery Stratified by the Use of Image Guidance: An Analysis of the Kids' Inpatient Database from 1997 to 2016
J Neurol Surg B DOI: 10.1055/s-0040-1701602 Background To evaluate the utilization of image guidance technology for pediatric transsphenoidal pituitary resection (TSPR) and analyze the complication rates, length of stay (LOS), and total cost for such surgeries as function of time and utilization of image guidance. Methods The Healthcare Cost and Utilization Project Kids' Inpatient Database (KID) was queried for all cases of TSPR between 1997 and 2016. Factors extracted included patient demographics, use of image guidance, LOS, total cost, and complications, including panhypopituitarism, diabetes insipidus (...
Source: Journal of Neurological Surgery Part B: Skull Base - March 9, 2020 Category: Neurosurgery Authors: Lovin, Benjamin D. Yu, Justin Choi, Jonathan S. Patel, Akash J. Giannoni, Carla M. Gallagher, K. Kelly Tags: Original Article Source Type: research

Indications and Safety of the Zygomatic Osteotomy in Middle Cranial Fossa Surgery: A Retrospective Cohort Review
J Neurol Surg B DOI: 10.1055/s-0040-1705166 Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 9, 2020 Category: Neurosurgery Authors: Ricciardi, Luca Mongardi, Lorenzo Dones, Flavia Tags: Letter to the Editor Source Type: research

Morphometric and Topographic Features of Stylomastoid Foramen and its Clinical Significance in Facial Nerve Block
Conclusions The recommended angles of application are 30 degrees on the horizontal plane and 55 degrees on the sagittal plane for Type 1 when point B is considered. A needle length below 10 mm is more suitable to minimize the potential complications of the nerve block. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 6, 2020 Category: Neurosurgery Authors: Kuto ğlu, Tunç Çetkin, Murat Turan, Ömer Bayko, Selin Yarkan, İlda Sinem Tags: Original Article Source Type: research

Endoscope-Assisted Middle Fossa Approach: Optimizing the Surgical Corridor for the Resection of Multicompartmental Chordomas
Conclusion Endoscopic assistance in the middle fossa approach is a safe and valuable tool for maximizing the reach of the surgical corridor when treating skull base chordomas. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 6, 2020 Category: Neurosurgery Authors: Beer-Furlan, Andr é Vellutini, Eduardo de Arnaldo Silva Balsalobre, Leonardo Stamm, Aldo Cassol Tags: Original Article Source Type: research

Endoscopic Endonasal Odontoidectomy Preserving Atlantoaxial Stability: a Pediatric Case
Conclusion Endoscopic endonasal odontoidectomy is a feasible approach for CVJ malformation. In this case, bulbar decompression was achieved preserving CVJ stability and avoiding posterior fixation.The link to the video can be found at: https://youtu.be/VIobocHfCuc. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 4, 2020 Category: Neurosurgery Authors: Veiceschi, Pierlorenzo Pozzi, Fabio Restelli, Francesco Alfiero, Tommaso Castelnuovo, Paolo Locatelli, Davide Tags: Skull Base: Operative Videos Source Type: research

Evaluation of Surgical Freedom for One-and-a-Half Nostril, Mononostril, and Binostril Endoscopic Endonasal Transsphenoidal Approaches
Conclusion The OETA has similar exposed area, surgical freedom, and attack angle for most anatomic targets to the BETA without resecting contralateral nasal septal mucosa, and obviously superior to the META. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 28, 2020 Category: Neurosurgery Authors: Yang, Jin Wen, Guodao Tang, Chao Zhong, Chunyu Zhu, Junhao Cong, Zixiang Ma, Chiyuan Tags: Original Article Source Type: research

Using the Arcuate Eminence –Trigeminal Notch Line to Localize the Anterior Wall of the Internal Auditory Canal in a Subtemporal Approach: An Anatomical Study
Conclusion The ATL corresponded to the projection of the anterior wall of the IAC on the anterior petrous surface and could be used as an alternative landmark for localizing the anterior wall of the IAC. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 28, 2020 Category: Neurosurgery Authors: Yang, Haifeng Li, Mengjun Chen, Ge Liang, Jiantao Bao, Yuhai Li, Mingchu Ling, Feng Tags: Original Article Source Type: research

Computed Tomography as a Predictor of Sinonasal Inverted Papilloma Origin, Skull Base Involvement, and Stage
Conclusion Interrater agreement on CT findings was substantial except on skull base involvement. CT correctly predicted site of tumor origin in up to 74% of subjects. CT was not sensitive for diagnosing skull base involvement but had substantial-to-near perfect agreement with pathologic tumor staging. CT is a useful but albeit limited adjunct for tumor localization and surgical planning for sinonasal IP. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 20, 2020 Category: Neurosurgery Authors: Lee, Jake J. Orlowski, Hilary L. P. Schneider, John S. Roland, Lauren T. Eldaya, Rami Jiramongkolchai, Pawina Kallogjeri, Dorina Chernock, Rebecca D. Klatt-Cromwell, Cristine N. Tags: Original Article Source Type: research

The Past, Present, and Future Statuses of Formerly Classified “Atypical Pituitary Adenomas”: A Clinicopathological Assessment of 101 Cases in a Cohort of More than 1,000 Pure Endoscopically Treated Patients in Single Center
This study was aimed to assess the clinical aggressiveness of pituitary neoplasms that were previously defined as atypical adenomas. Methods A total of 1,042 pituitary adenomas were included in the study and 101 of them were diagnosed as atypical adenoma. Demographic characteristics, radiological evaluations, and clinical information were obtained from a computer-based patient database. Cases were categorized as atypical or typical using the criteria listed in 2004 Classification of Tumors of Endocrine Organs. Results The cure and reoperation rates did not show any statistically significant difference betwe...
Source: Journal of Neurological Surgery Part B: Skull Base - February 20, 2020 Category: Neurosurgery Authors: Bal, Ercan Kula ç, İbrahim Ayhan, Selim S öylemezoğlu, Figen Berker, Mustafa Tags: Original Article Source Type: research

Benefit of Endoscopic Surgery in the Management of Acute Invasive Skull Base Fungal Rhinosinusitis
Conclusion Surgical endoscopic intervention is an option for definitive management of acute invasive skull base fungal rhinosinusitis; however, postoperative mortality and risk of recurrence requiring additional surgical interventions remains high. Patients with hematologic malignancy may be more susceptible to recurrent infection requiring multiple surgical debridements. We recommend early aggressive multimodal treatment. Multiple debridements may be warranted in most cases; close clinical surveillance is needed during neurosurgical intervention. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thie...
Source: Journal of Neurological Surgery Part B: Skull Base - February 11, 2020 Category: Neurosurgery Authors: D'Andrea, Megan R. Gill, Corey M. Umphlett, Melissa Govindaraj, Satish Del Signore, Anthony Bederson, Joshua B. Iloreta, Alfred M.C. Shrivastava, Raj K. Tags: Original Article Source Type: research

Anatomic Variability of the Morphometric Parameters of the Third Ventricle of the Brain and Its Relations to the Shape of the Skull
Conclusion The morphometric parameters of the third ventricle of the brain, such as height, anteroposterior diameter, and transverse diameter, depend on the individual anatomic variability of the skull shape and gender. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 7, 2020 Category: Neurosurgery Authors: Zhuravlova, Iuliia Kornieieva, Maryna Tags: Original Article Source Type: research

CT-MRI Image Fusion-Based Computer-Assisted Navigation Management of Communicative Tumors Involved the Infratemporal-Middle Cranial Fossa
Conclusions CT-MRI image fusion combined with computer-assisted navigation management, optimized the accuracy, safety, and surgical results for core needle biopsy and surgery of ICFCTs. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 7, 2020 Category: Neurosurgery Authors: Yang, Rong Lu, Han Wang, Yang Peng, Xin Mao, Chi Yi, Zhiqiang Guo, Yuxing Guo, Chuanbin Tags: Original Article Source Type: research

Surgical Treatment of Sinonasal Mucosal Melanoma in Patients Treated with Systemic Immunotherapy
Conclusion Surgical resection for local control plays a critically important role in the treatment of sinonasal mucosal melanoma regardless of the presence of metastases and whether immunotherapy will be given. This case series suggests that, though immunotherapy may demonstrate efficacy in managing distant disease, surgery should remain the first-line treatment for the primary site. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 7, 2020 Category: Neurosurgery Authors: Chao, Tiffany N. Kuan, Edward C. Tong, Charles C. L. Kohanski, Michael A. Grady, M. Sean Palmer, James N. Adappa, Nithin D. O'Malley, Bert W. Tags: Original Article Source Type: research

Management of Recurrent or Progressing Skull Base Chondrosarcomas: Predictors of Long-Term Outcomes
This study aims to identify presentation and treatment-related factors which impact the progression free survival (PFS) and disease specific survival (DSS) for recurrent CSA, and to identify salvage treatment factors associated with successful restoration to the natural history following primary treatment. Methods This single-institution retrospective review included patients with recurrent/progressive CSA over a 25-year period. Survival analysis for factors impacting PFS and DSS was performed. Salvage treatment factors associated with achieving PFS ≥newly diagnosed median PFS were identified using univariate st...
Source: Journal of Neurological Surgery Part B: Skull Base - February 7, 2020 Category: Neurosurgery Authors: Breshears, Jonathan D. DeMonte, Franco Habib, Ahmed Gidley, Paul W. Raza, Shaan M. Tags: Original Article Source Type: research

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Journal of Neurological Surgery Part B: Skull Base 2020; S 01 Article in Thieme eJournals: Table of contents  |  Congress (Source: Journal of Neurological Surgery Part B: Skull Base)
Source: Journal of Neurological Surgery Part B: Skull Base - February 5, 2020 Category: Neurosurgery Source Type: research

Visual Outcomes after Endoscopic Endonasal Transsphenoidal Resection of Pituitary Adenomas: Our Institutional Experience
J Neurol Surg B DOI: 10.1055/s-0039-3402020 Objectives Visual dysfunction in patients with pituitary adenomas is a clear indication for endoscopic endonasal transsphenoidal surgery (EETS). However, the visual outcomes vary greatly among patients and it remains unclear what tumor, patient, and surgical characteristics contribute to postoperative visual outcomes. Methods One hundred patients with pituitary adenomas who underwent EETS between January 2011 and June 2015 in a single institution were retrospectively reviewed. General patient characteristics, pre- and postoperative visual status, clinical presenta...
Source: Journal of Neurological Surgery Part B: Skull Base - February 3, 2020 Category: Neurosurgery Authors: van Essen, Max J. Muskens, Ivo S. Lamba, Nayan Belunek, Stephan F.J. van der Boog, Arthur T.J. Amelink, G. Johan Gosselaar, Peter H. van Doormaal, Tristan P.C. Stades, Aline M.E. Verhoeff, Joost J.C. van Genderen, Maria M. Eenhorst, Christine A.E. Broekma Tags: Original Article Source Type: research

Comparative Efficacy of Transsphenoidal Endonasal Endoscopic and Microscopic Pituitary Surgery at Single Center of a Developing Country
Conclusions The transsphenoidal approaches for resection of pituitary adenoma, both endoscopic and microscopic approach, are minimally invasive and effective for disease control. Both the approaches lead to similar endocrine control, visual symptoms, complications, and long-term outcome. Therefore, the selection of the final approach should be individualized, ultimately depending on the surgeons' comfort, experience, and familiarity with the particular technique. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thieme eJournals: Table of contents  |  Abstract  | &nb...
Source: Journal of Neurological Surgery Part B: Skull Base - February 3, 2020 Category: Neurosurgery Authors: Phogat, Vivek Agarwal, Manish Sinha, Virendra D. Purohit, Devendra Tags: Original Article Source Type: research

Evaluating an Image-Guided Operating Room with Cone Beam CT for Skull Base Surgery
J Neurol Surg B DOI: 10.1055/s-0040-1701211 Importance Skull base surgery requires precise preoperative assessment and intraoperative management of the patient. Surgical navigation is routinely used for complex skull base cases; however, the image guidance is commonly based on preoperative scans alone. Objective The primary objective of this study was to assess the image quality of intraoperative cone-beam computed tomography (CBCT) within anatomical landmarks used in sinus and skull base surgery. The secondary objective was to assess the registration error of a surgical navigation system based on intraoper...
Source: Journal of Neurological Surgery Part B: Skull Base - February 3, 2020 Category: Neurosurgery Authors: Muhanna, Nidal Douglas, Catriona M. Daly, Michael J. Chan, Harley H.L. Weersink, Robert Townson, Jason Monteiro, Eric Yu, Eugene Weimer, Emilie Kucharczyk, Walter Jaffray, David A. Irish, Jonathan C. de Almeida, John R. Tags: Original Article Source Type: research

Anterior Ethmoidal Artery: A Computed Tomography Analysis and New Classifications
Conclusion Provided AEA details improve surgeons' awareness of AEA variations in the endoscopic field and can help residents in training. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - January 27, 2020 Category: Neurosurgery Authors: El-Anwar, Mohammad Waheed Khazbak, Alaa Omar Eldib, Diaa Bakry Algazzar, Hesham Youssef Tags: Original Article Source Type: research

Initial Observation among Patients with Vestibular Schwannoma
J Neurol Surg B DOI: 10.1055/s-0040-1701222 Introduction Vestibular schwannomas (VS) are slow growing tumors. Although there are a wide variety of available treatment options, these tumors are often initially observed. We aimed to establish the presenting symptoms and outcomes of patients treated with initial observation at our institution. Methods The medical records of patients with radiographically diagnosed VS were reviewed from 1989 to 2018. Actuarial estimates of radiographic tumor control and freedom of local therapy were calculated and compared using Cox regression analyses. Results A total ...
Source: Journal of Neurological Surgery Part B: Skull Base - January 24, 2020 Category: Neurosurgery Authors: Ruiz-Garcia, Henry Peterson, Jennifer Leon, Janet Malouff, Timothy Vallow, Laura Lundy, Larry Chaichana, Kaisorn L. Vibhute, Prasanna Trifiletti, Daniel M. Tags: Original Article Source Type: research

Orbitozygomatic Craniotomy via an Eyebrow Incision: Management of the Opened Frontal Sinus
Conclusion Breach of the frontal sinus is common during eyebrow craniotomies. Despite reduced options for local repair, these patients have experienced no CSF leaks requiring intervention and no infections in our series. Long-term mucocele risk is not reliably determined with our length of follow-up. Breach of the frontal sinus is not a contraindication to the eyebrow approach. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - January 24, 2020 Category: Neurosurgery Authors: Peters, David R. Payne, Caitlin Wait, Scott D. Tags: Original Article Source Type: research

Sinonasal Osteosarcoma: Report of 14 New Cases and Systematic Review of the Literature
Conclusions Sinonasal osteosarcomas are uncommon tumors and can pose a significant therapeutic challenge. Increasing age and T4 disease are associated with worse prognosis. This disease usually warrants consultation by a multidisciplinary team and consideration of multimodality therapy. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - January 24, 2020 Category: Neurosurgery Authors: Low, Christopher M. Gruszczynski, Nelson R. Moore, Eric J. Price, Daniel L. Janus, Jeffrey R. Kasperbauer, Jan L. Van Abel, Kathryn M. Stokken, Janalee K. Van Gompel, Jamie J. Link, Michael J. Choby, Garret Tags: Original Article Source Type: research

Relationship between Recurrence Rates of Rathke's Cleft Cysts and Surgical Approaches to Sellar Reconstruction
Conclusion The results of this small study suggest that reconstruction of the sellar floor, and microscopic rather than endoscopic techniques, may be associated with a higher rate of Rathke's cleft cyst recurrence. However, these trends did not reach statistical significance. Patients undergoing nonreconstructive procedures may be more prone to certain postoperative complications. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - January 24, 2020 Category: Neurosurgery Authors: Limb, Rebecca King, James Tags: Original Article Source Type: research

Transsphenoidal Resection of Pituitary Tumors in the United States, 2009 to 2011: Effects of Hospital Volume on Postoperative Complications
Conclusions Our analysis shows that increased case volume is related to superior perioperative outcomes for TNTS pituitary tumor resections. Despite the recent adoption of newer endoscopic techniques and concerns of technical learning curves, this VOR remains undisturbed. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - January 24, 2020 Category: Neurosurgery Authors: Li, Daphne Johans, Stephen Martin, Brendan Cobb, Adrienne Kim, Miri Germanwala, Anand V. Tags: Original Article Source Type: research

The Effect of Timing of Surgery in Pituitary Apoplexy on Continuously Valued Visual Acuity
This study was aimed to assess for a relationship between continuously valued surgery delay and visual acuity recovery after pituitary apoplexy. Methods In this retrospective study, all patients presenting with symptomatic pituitary apoplexy between 2004 and 2016 were identified from an institutional database. The primary endpoint was visual acuity improvement, measured as the difference in acuity from the pre- to postoperative period, and measured in Logarithm of the Minimal Angle of Resolution (LogMAR) units. Analysis was performed using continuous values of time delay and visual acuity to assess for an underlyin...
Source: Journal of Neurological Surgery Part B: Skull Base - January 24, 2020 Category: Neurosurgery Authors: Kelly, Patrick D. Fernando, Shanik J. Malenke, Jordan A. Chandra, Rakesh K. Turner, Justin H. Chambless, Lola B. Tags: Original Article Source Type: research

Modification of the Fetal Profile Line to Measure Reversal of Forehead Slope after Early Repair of Frontoethmoidal Encephalocele
Conclusion Early repair with bone grafting can promote normal frontal bone development and improve forehead slope. The mFP line is a useful method to measure degree of forehead slope. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - January 24, 2020 Category: Neurosurgery Authors: Das, Paramita Lacey, Martin Guillaume, Daniel J. Tags: Original Article Source Type: research

Use of Salvage Surgery or Stereotactic Radiosurgery for Multiply Recurrent Skull Base Chordomas: A Single-Institution Experience and Review of the Literature
Conclusion Refractory skull base chordomas present a challenging treatment dilemma. Repeat surgical resection or SRS seems to provide adequate salvage therapy that is well-tolerated when treated at a tertiary center offering multimodality care. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - January 14, 2020 Category: Neurosurgery Authors: Yoo, Stella K. Strickland, Ben A. Zada, Gabriel Bian, Shelly X. Garsa, Adam Ye, Jason C. Yu, Cheng Weiss, Martin H. Wrobel, Bozena B. Giannotta, Steven Chang, Eric L. Tags: Original Article Source Type: research

Pain and Psychological Distress: Effect of Microvascular Decompression on Sleep Disorders and Obsessions in Trigeminal Neuralgia
This study was aimed to investigate the effects of microvascular decompression (MVD) on sleep disorders and obsessions in trigeminal neuralgia. Methods Clinical data from 115 patients with trigeminal neuralgia treated with MVD from August 1, 2017 to May 31, 2018 at Jining First People's Hospital were analyzed retrospectively. The preoperative and postoperative risk factors for sleep disorders and obsessions, as well as the effects of MVD on sleep disorders and obsessions, were examined. Results In 115 patients, there were significant differences in preoperative sleep disorders associated with sex, monthly h...
Source: Journal of Neurological Surgery Part B: Skull Base - January 14, 2020 Category: Neurosurgery Authors: Wang, Yanglingxi Sun, Kai Zhang, Wenling Zhang, HaiTao Wang, Chong Tags: Original Article Source Type: research