Conquering the Rock —A Retrospective Single-Center Experience of the Transapical Petrosal Transtentorial (Kawase) Approach: Operative Technique and Impact on Cranial Nerve Function
In conclusion, the Kawase approach is a highly complex, but essential middle fossa approach, extremely robust, and able to serve a wide array of pathologies together with its extensions. It is very accurate for performing hearing preservation surgery, but not without caveats and inherent risk of 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 - June 21, 2019 Category: Neurosurgery Authors: Volovici, V. Dammers, R. Dirven, C. M. F. Delwel, E. J. Tags: Original Article Source Type: research

A Classification for the Anterior Inferior Cerebellar Artery —Subarcuate Artery Complex Based on the Embryological Development
J Neurol Surg B DOI: 10.1055/s-0039-1692474 Objective To hierarchize the anterior inferior cerebellar artery (AICA)–subarcuate artery (SAA) complex's variations in the surgical field. Background The AICA's “subarcuate loop” (SL) presents multiple variations, closely related to the SAA. AICA-SAA complex's variations may represent major issues in cerebellopontine angle (CPA) surgery. As the spectrum of configurations is originated during the development, a systematized classification was proposed based on the interaction between the petrosal bone and the AICA in the embryonic period. Meth...
Source: Journal of Neurological Surgery Part B: Skull Base - June 21, 2019 Category: Neurosurgery Authors: Rasmussen, Jorge Plou, Pedro Campero, Álvaro Ajler, Pablo Tags: Original Article Source Type: research

Risk Factors for 30-Day Non-Neurological Morbidity and Cerebrospinal Fluid Leak in Patients Undergoing Surgery for Vestibular Schwannoma
Conclusion Dependent functional status preoperatively, preoperative anemia, and duration of surgery over 8 hours are the greatest predictors of complications in the 30-day postoperative period. [...] 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 - June 21, 2019 Category: Neurosurgery Authors: Gelfand, Yaroslav Longo, Michael Berezin, Naomi Nakhla, Jonathan P. De la Garza-Ramos, Rafael Agarwal, Vijay Tags: Original Article Source Type: research

Endoscopic Endonasal Transpterygoid Approach to Sphenoid Sinus Lateral Recess Defects
Conclusions Although the endoscopic endonasal transpterygoid approach is an excellent corridor for dealing with lesions of the SSLR, limited rate of neurologic and lacrimal complications was observed. Potential morbidity of the intervention should be discussed during preoperative counselling. [...] 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 - June 21, 2019 Category: Neurosurgery Authors: Bozkurt, G ülpembe Turri-Zanoni, Mario Coden, Elisa Russo, Federico Elhassan, Hassan Ahmed Gallo, Stefania Zocchi, Jacopo Bignami, Maurizio Locatelli, Davide Castelnuovo, Paolo Tags: Original Article Source Type: research

Disorders Involving a Persistent Craniopharyngeal Canal: A Case Series
Conclusion The persistent CPC is a rare congenital anomaly associated with diverse pathology and careful review of preoperative radiology is critical to the management. When warranted, subsequent surgical repair and reconstruction is associated with excellent postoperative outcomes. [...] 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 - June 21, 2019 Category: Neurosurgery Authors: Poonia, Seerat K. Cazzador, Diego Kaufman, Adam C. Kohanski, Michael A. Kuan, Edward C. Tong, Charles C. L. Carlson, Roy D. Borsetto, Daniele Emanuelli, Enzo Palmer, James N. Adappa, Nithin D. Tags: Case Report Source Type: research

Endoscopic Transnasal Skull Base Surgery in Pediatric Patients
Conclusions Despite anatomy-related challenges in children, adequate results can be achieved with high rates of success, and the functional and anatomical integrity of the developing skull and nose of children can be preserved. In pediatric patients, ETNS is a safe and effective option for addressing various lesions along the skull base. [...] 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 - June 18, 2019 Category: Neurosurgery Authors: Kahilogullari, Gokmen Meco, Cem Beton, Suha Zaimoglu, Murat Ozgural, Onur Basak, Hazan Bozkurt, Melih Unlu, Agahan Tags: Original Article Source Type: research

Clinical Outcomes and Multidisciplinary Patterns of Failure for Olfactory Neuroblastoma: The Ohio State Experience
Conclusion In this retrospective cohort, patients with positive nodes or HHG have significantly worse clinical outcomes. Future studies should explore treatment intensification for HHG or positive nodes. [...] 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 - June 12, 2019 Category: Neurosurgery Authors: Wolfe, Adam R. Blakaj, Dukagjin London, Nyall Blakaj, Adriana Klamer, Brett Pan, Jeff Wakely, Paul Prevedello, Luciana Bonomi, Marcelo Bhatt, Aashish Raval, Raju Palmer, Joshua Prevedello, Daniel Carrau, Ricardo Tags: Original Article Source Type: research

The Angelina Dissectors: A Novel Design of Dissectors for Endoscopic Endonasal Approaches
Conclusion Even though an endoscopic endonasal approach is possible using other instruments, the design of these dissectors aids the surgeon's work. It is our impression, based on personal experience that it allows more freedom of movement and dexterity during the procedure, which could translate as an improved patient outcome. [...] 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 - June 12, 2019 Category: Neurosurgery Authors: Todeschini, Alexandre B. Otto, Bradley A. Carrau, Ricardo L. Prevedello, Daniel M. Tags: Original Article Source Type: research

Incidence and Predictive Factors for Additional Opioid Prescription after Endoscopic Skull Base Surgery
Conclusion The requirement for extended postoperative opioid pain control is common after ESBS. Patient demographics including age and psychosocial factors, such as depression may predict the need for AOP after ESBS. These results suggest that patient-driven factors, rather than surgical characteristics, may determine the need for prolonged pain control requirements after ESBS. [...] 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 - June 12, 2019 Category: Neurosurgery Authors: Shen, Sarek A. Jafari, Aria Qualliotine, Jesse R. DeConde, Adam S. Tags: Original Article Source Type: research

MRI and CT Guided Cryoablation for Intracranial Extension of Malignancies along the Trigeminal Nerve
Conclusions Percutaneous MRI-guided cryoablation is a feasible treatment option for malignancies tracking intracranially along the trigeminal nerve. [...] 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 - June 12, 2019 Category: Neurosurgery Authors: Lee, Thomas C. Guenette, Jeffrey P. Moses, Ziev B. Lee, Jong Woo Annino, Donald J. Chi, John H. Tags: Original Article Source Type: research

Longitudinal Radiographic Outcomes of Vestibular Schwannoma in Single and Fractionated Stereotactic Radiosurgery: A Retrospective Cohort Study
J Neurol Surg B DOI: 10.1055/s-0039-1692642Management of vestibular schwannoma (VS) includes stereotactic radiosurgery (SRS) in single or fractionated treatments. There is a paucity of literature on the three-dimensional (3D) volumetric kinetics and radiological changes following SRS and no consensus on appropriate post-SRS surveillance imaging timeline. This is a retrospective cohort study with institutional review board approval. A total of 55 patients met study criteria. We collected volumetric kinetic data in VS treated with SRS over time using a target volume contouring software. We also tracked radiographic phenomena...
Source: Journal of Neurological Surgery Part B: Skull Base - June 12, 2019 Category: Neurosurgery Authors: Khattab, Mohamed H. Newman, Neil B. Wharton, David M. Sherry, Alexander D. Luo, Guozhen Manzoor, Nauman F. Rivas, Alejandro Davis, L. Taylor Chambless, Lola B. Attia, Albert Cmelak, Anthony J. Tags: Original Article Source Type: research

Erratum: Increased Defect Size is Associated with Increased Complication Rate after Free Tissue Transfer for Midanterior Skull-Base Reconstruction
J Neurol Surg B DOI: 10.1055/s-0039-1692394 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 - June 10, 2019 Category: Neurosurgery Authors: Nakamura, Ryota Takanari, Keisuke Nakamura, Yutaka Kambe, Miki Hishida, Masashi Ebisawa, Katsumi Fujimoto, Yasushi Fujii, Masazumi Kamei, Yuzuru Tags: Erratum Source Type: research

The Patient-Centered Approach: A Review of the Literature and Its Application for Acoustic Neuromas
J Neurol Surg B DOI: 10.1055/s-0039-1692396Patient-centered care is defined as “care that is consistent with and respects the values, needs, and wishes of patients” and is best achieved when clinicians involve patients and their support system in health care discussions and decisions. While this approach has been well established and supported in more general medical specialties, such as primary care, that may encompass a more holistic approach, it has rarely been described in surgical disciplines. Acoustic neuromas (ANs) can be unique among other skull base and intracranial pathologies, in that the management ...
Source: Journal of Neurological Surgery Part B: Skull Base - June 6, 2019 Category: Neurosurgery Authors: Hong, Christopher S. Moliterno, Jennifer Tags: Original Article Source Type: research

Preoperative Computed Tomography Imaging of the Sphenoid Sinus: Striving Towards Safe Transsphenoidal Surgery
Conclusions Our study highlights and reviews the key variants that have potential to impact surgical complications and outcomes in a heterogeneous patient population. The proposed preoperative CT checklist for patients, undergoing transsphenoidal surgery, consistently identifies these higher risk anatomical variants. [...] 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 28, 2019 Category: Neurosurgery Authors: Raseman, John Guryildirim, Melike Beer-Furlan, Andr é Jhaveri, Miral Tajudeen, Bobby A. Byrne, Richard W. Batra, Pete S. Tags: Original Article Source Type: research

Smell Preservation following Unilateral Endoscopic Transnasal Approach to Resection of Olfactory Groove Meningioma: A Multi-institutional Experience
Conclusion Smell preservation is possible following unilateral endoscopic endonasal resection of carefully selected OGM. [...] 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 28, 2019 Category: Neurosurgery Authors: Orgain, Carolyn A. Kuan, Edward C. Alvarado, Raquel Adappa, Nithin D. Jonker, Benjamin P. Lee, John Y. K. Palmer, James N. Winder, Mark Harvey, Richard J. Tags: Original Article Source Type: research

Middle Cranial Fossa Encephalocele and Cerebrospinal Fluid Leakage: Etiology, Approach, Outcomes
Conclusions Middle cranial fossa tegmen defects are most commonly seen in obese females and are spontaneous in origin. The most common location was the tegmen mastoideum, and these defects were most commonly repaired through the transmastoid approach, with no greater risk of 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 28, 2019 Category: Neurosurgery Authors: McNulty, Beth Schutt, Christopher A. Bojrab, Dennis Babu, Seilesh Tags: Original Article Source Type: research

Sellar Diaphragm Reconstruction with Tachosil During Endoscopic Endonasal Surgery: Technical Note
This report introduces a new closure technique for the management of intraoperative cerebrospinal fluid (CSF) leakage during endoscopic endonasal surgery. The procedure is based on the combination of a traditional autologous tissue flap with a heterologous fibrin graft (TachoSil). We performed a retrospective analysis on 121 patients with pituitary adenomas treated in our center by the senior neurosurgeon (author V.R.B) in the previous 4 years. Only one patient (0.8%) developed a CSF leakage and no adverse events were found related to the use of TachoSil. Compared with other techniques used previously, sellar diaphragm rec...
Source: Journal of Neurological Surgery Part B: Skull Base - May 28, 2019 Category: Neurosurgery Authors: Jim énez Zapata, Herbert Daniel Rodr íguez Berrocal, Víctor Vior Fern ández, Carlos S ánchez, Franklin Mariño Garc ía Fernández, Alfredo Tags: Original Article Source Type: research

Cerebellopontine Angle Lesions (Part 2)
J Neurol Surg B 2019; 80: S265-S266 DOI: 10.1055/s-0039-1688825 Georg Thieme Verlag KG Stuttgart · New YorkArticle 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 - May 24, 2019 Category: Neurosurgery Authors: Liu, James K. Tags: Foreword Source Type: research

An Assessment of Globe Position Dynamics following Transcranial Lateral and Superior Orbital Wall Resections without Rigid Reconstruction: A Case Series of 55 Patients
Conclusions Excellent results in long-term postoperative globe position dynamics can be achieved without the use of rigid reconstruction after transcranial lateral and superior orbital wall resections, regardless of the PO globe positioning. [...] 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 21, 2019 Category: Neurosurgery Authors: Krug, Randall G. Bradley, Elizabeth A. Van Gompel, Jamie J. Tags: Original Article Source Type: research

Resumption of Positive-Pressure Ventilation Devices for Obstructive Sleep Apnea following Transsphenoidal Surgery: An Institutional Experience of a Surgical Cohort
Conclusions Resuming PPV use after transsphenoidal surgery did not result in intracranial complications. However, delay in resuming PPV resulted in four patients requiring oxygen at home. We propose a preliminary PPV device management algorithm based on the size of the intraoperative CSF leak to facilitate future studies. [...] 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 17, 2019 Category: Neurosurgery Authors: Gravbrot, Nicholas Jahnke, Heidi White, William L. Little, Andrew S. Tags: Original Article Source Type: research

Enlargement of Dorello's Canal as a Novel Radiographic Marker of Idiopathic Intracranial Hypertension
The objective of this study is to compare the visibility and size of Dorello's canal (DC) on magnetic resonance imaging between patients with idiopathic intracranial hypertension (IIH) and control patients, for its evaluation as a potential novel marker for chronic increased intracranial pressure (ICP). Design Retrospective blinded case–control study. Setting Tertiary care academic center. Participants Fourteen patients with spontaneous cerebrospinal fluid (CSF) rhinorrhea and diagnosed IIH, as well as an equal number of age and gender-matched controls. Main Outcome Measures Radiograph...
Source: Journal of Neurological Surgery Part B: Skull Base - May 3, 2019 Category: Neurosurgery Authors: Eggerstedt, Michael Dua, Sumeet G. Varelas, Antonios N. Bhabad, Sudeep H. Batra, Pete S. Tajudeen, Bobby A. Tags: Original Article Source Type: research

Combined Petrosal Approach for Resection of Petroclival Meningioma with Endoscopic Assistance: Operative Video and Technical Nuances
J Neurol Surg B DOI: 10.1055/s-0039-1688487Petroclival meningiomas are formidable lesions due to their deep location in the skull base and proximity to critical neurovascular structures. The combined petrosal approach, comprised of an anterior petrosectomy and posterior retrolabyrinthine petrosectomy, allows for both supra- and infratentorial exposure of the tumor in the petroclival region while potentially preserving hearing function (Fig. 1). In this operative video atlas manuscript, the authors demonstrate a step-by-step technique for microsurgical resection of a petroclival meningioma via the combined petrosal approach...
Source: Journal of Neurological Surgery Part B: Skull Base - April 30, 2019 Category: Neurosurgery Authors: Liu, James K. Dodson, Vincent N. Tags: Skull Base: Operative Videos Source Type: research

Endoscopic-Assisted Microvascular Decompression of Ectatic Vertebral Artery for Hemifacial Spasm: Operative Video and Technical Nuances
J Neurol Surg B DOI: 10.1055/s-0039-1688807In this operative video atlas manuscript, the authors demonstrate the operative nuances and surgical technique for endoscopic-assisted microvascular decompression of a large ectatic vertebral artery causing hemifacial spasm. A retrosigmoid approach was performed and a large ectatic vertebral artery was transposed away from the root exit zone of cranial nerve VII (Fig. 1). The lateral spread response disappeared, signifying adequate decompression of the facial nerve (Fig. 2). The use of endoscopic-assistance during the microsurgical decompression was very useful to confirm the orig...
Source: Journal of Neurological Surgery Part B: Skull Base - April 30, 2019 Category: Neurosurgery Authors: Liu, James K. Dodson, Vincent N. Tags: Skull Base: Operative Videos Source Type: research

Retrosigmoid Transmeatal Approach for Resection of Acoustic Neuroma: Operative Video and Technical Nuances of Subperineural Dissection for Facial Nerve Preservation
J Neurol Surg B DOI: 10.1055/s-0039-1688488The retrosigmoid (suboccipital) approach is the workhorse for most acoustic neuromas in the cerebellopontine angle. In this operative video atlas manuscript, the authors demonstrate the nuances of the subperineural dissection technique for microsurgical resection of an acoustic neuroma via the retrosigmoid transmeatal approach. The plane is developed by separating the perineurium of the vestibular nerve away from the tumor capsule. This perineurium provides a protective layer between the tumor capsule and the facial nerve which serves as a buffer to avoid direct dissection and pot...
Source: Journal of Neurological Surgery Part B: Skull Base - April 30, 2019 Category: Neurosurgery Authors: Liu, James K. Dodson, Vincent N. Jyung, Robert W. Tags: Skull Base: Operative Videos Source Type: research

Translabyrinthine Approach for Resection of Large Cystic Acoustic Neuroma: Operative Video and Technical Nuances of Subperineural Dissection for Facial Nerve Preservation
J Neurol Surg B DOI: 10.1055/s-0039-1685534The translabyrinthine approach is advantageous for the resection of large acoustic neuromas compressing the brainstem when hearing loss is nonserviceable. This approach provides wide access through the presigmoid corridor without prolonged cerebellar retraction. Early identification of the facial nerve at the fundus is also achieved. In this operative video atlas manuscript, the authors demonstrate a step-by-step technique for microsurgical resection of a large cystic acoustic neuroma via a translabyrinthine approach. The nuances of microsurgical and skull base technique are illus...
Source: Journal of Neurological Surgery Part B: Skull Base - April 24, 2019 Category: Neurosurgery Authors: Liu, James K. Dodson, Vincent N. Jyung, Robert W. Tags: Skull Base: Operative Videos Source Type: research

Retrosigmoid Approach: A Simple and Safe Way to Resect Intrinsic Pontomedullary Lesions
Conclusions Radical resection of ventral intrinsic pontomedullary lesions displays a high degree of intraoperative reliability, and a good clinical result is possible using simple surgical procedures. The anatomical references are the first element in the decision-making process during 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 - April 23, 2019 Category: Neurosurgery Authors: Gonz ález-Darder, José M. Capilla-Guasch, Pau Real-Pe ña, Luis Tags: Original Article Source Type: research

Retrosigmoid Suprameatal Approach for Resection of Petrotentorial Cerebellopontine Angle Meningioma: Operative Video and Technical Nuances
J Neurol Surg B DOI: 10.1055/s-0039-1685532Meningiomas are the second most common tumor to arise in the cerebellopontine angle. In this operative video atlas manuscript, the authors demonstrate a step-by-step technique for microsurgical resection of a petrotentorial meningioma in the cerebellopontine angle via a retrosigmoid suprameatal approach. Drilling of the hyperostotic suprameatal tubercle was necessary to gain access to the dural origin and anterior petrosal extent of the tumor. The nuances of microsurgical and skull base technique are illustrated including microsurgical dissection of the tumor away from the brainst...
Source: Journal of Neurological Surgery Part B: Skull Base - April 22, 2019 Category: Neurosurgery Authors: Liu, James K. Dodson, Vincent N. Tags: Skull Base: Operative Videos Source Type: research

Internal Acoustic Canal Stenosis Due to Hyperostosis
Conclusion IAC exostoses and osteomas are rare lesions that lead to insidious onset of debilitating symptoms from vestibulocochlear nerve dysfunction. Although the role of surgical decompression remains unclear, it appears that patients presenting with vertigo have more favorable response to surgical decompression as compared with those presenting with tinnitus and sensorineural hearing loss. [...] 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 - April 22, 2019 Category: Neurosurgery Authors: Goodarzi, Amir Toussi, Atrin Garza, Nicholas Lechpammer, Mirna Brodie, Hilary Diaz, Rodney C. Shahlaie, Kiarash Tags: Original Article Source Type: research

Smoking and Obesity are Risk Factors for Thirty-Day Readmissions Following Skull Base Surgery
Conclusion In this series, smoking and raised BMI may be indicators for within 30-day readmission and complications in this population, raising the question of risk factor modification prior to elective intervention. [...] 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 - April 2, 2019 Category: Neurosurgery Authors: Makwana, Milan Taylor, Peter N. Stew, Benjamin T. Shone, Geoffrey Hayhurst, Caroline Tags: Original Article Source Type: research

Multi-modality Treatment and Survival in Sinonasal Minor Salivary Gland Tumors
Conclusion The most common treatment was surgery and RT, consistent with National Comprehensive Cancer Network (NCCN) guidelines which recommends chemotherapy (CT) only in the most concerning cases. However, we found no difference in survival among most treatment modalities when compared with triple modality therapy, with the exception of RT alone. Although margins were prognostic within these cancers, we found no evidence that adjuvant CRT provides any survival benefit over surgery and RT, though surgery alone was associated with decreased survival. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle in T...
Source: Journal of Neurological Surgery Part B: Skull Base - April 1, 2019 Category: Neurosurgery Authors: Torabi, Sina J. Spock, Todd Cardoso, Bruno Chao, Janet Manes, R Peter Judson, Benjamin L. Tags: Original Article Source Type: research

Hearing Preservation and Auditory Rehabilitation in Skull Base Surgery
J Neurol Surg B 2019; 80: 109-110 DOI: 10.1055/s-0039-1683881 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 28, 2019 Category: Neurosurgery Authors: Carlson, Matthew L. Jethanamest, Daniel Tags: Preface Source Type: research

Preoperative Evaluation of the Effects of Sigmoid Sinus Ligation with both Endovascular and Open-Field Occlusion Tests before Removal of Petroclival Tumors
J Neurol Surg B DOI: 10.1055/s-0039-1684021 Background Surgery for petroclival tumors is very challenging for neurosurgeons because the position of the tumor in relation to the brainstem, cranial nerves, and posterior fossa vessels greatly restricts the surgical field. Some papers have described using sigmoid sinus ligation to open the surgical field; however, pre- and intraoperative evaluations of the safety of ligation have been limited, despite the risk of complications from venous insufficiency. Here, we describe our method of preoperatively evaluating the potential safety of a retrolabyrinthine transsigmoid ap...
Source: Journal of Neurological Surgery Part B: Skull Base - March 26, 2019 Category: Neurosurgery Authors: Shitara, Satoshi Inoue, Takuro Tanaka, Toshiki Hirai, Hisao Fukushima, Takanori Tags: Original Article Source Type: research

Mental Health Disorders Associated with Sinonasal and Skull Base Malignancies: A Large Cohort Study
J Neurol Surg B DOI: 10.1055/s-0039-1679889 Objective The main purpose of this article is to examine the prevalence, incidence, sociodemographic, and clinical characteristics of mental health disorders (MHDs) among patients with skull base malignancies. Design Retrospective cohort study. Settings/Participants Six-thousand seven-hundred sixty sinonasal/skull base cancer patients in the MarketScan database between 2005 and 2014. Main Outcome Measures Frequency of MHDs pre- and post-diagnosis in patients harboring sinonasal/skull base malignancies. Results A significant increase in MHDs...
Source: Journal of Neurological Surgery Part B: Skull Base - March 19, 2019 Category: Neurosurgery Authors: Lee, Ji Hyae Zacharia, Brad E. Ba, Djibril Leslie, Douglas Liu, Guodong Goyal, Neerav Tags: Original Article Source Type: research

Evaluation of Skull Base Tumors with Dynamic TurboFLASH MRI during Gadolinium Injection
Conclusion The dynamic analysis of tumor contrast enhancement with the TurboFLASH sequence provides useful additional information to that obtained with conventional MR, improving the differential diagnosis of skull base tumors, particularly in the distinction between glomus and nonglomus tumors and in diagnosing CSCH. [...] 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 15, 2019 Category: Neurosurgery Authors: Trasimeni, Guido Auconi, Marina Grossi, Andrea Gagliardo, Olga Romano, Andrea Covelli, Edoardo Bozzao, Alessandro Tags: Original Article Source Type: research

A Population-Level Analysis of Pituitary Carcinoma from the National Cancer Database
Conclusions The most common treatment for pituitary carcinoma is surgery alone followed by no surgery. Surgery alone has significantly better OS compared with no treatment. The efficacy of radiation, chemotherapy, and neurohormonal treatments needs to be examined with prospective studies. [...] 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 15, 2019 Category: Neurosurgery Authors: Carey, Ryan M. Kuan, Edward C. Workman, Alan D. Patel, Neil N. Kohanski, Michael A. Tong, Charles C.L. Chen, Jinbo Palmer, James N. Adappa, Nithin D. Brant, Jason A. Tags: Original Article Source Type: research

Stereotactic Radiosurgery of Cavernous Sinus Meningiomas
Conclusion SRS for CSM provides excellent long-term tumor and symptom control without considerable permanent side effects. Thus, SRS should be considered when counseling patients suffering from CSM. [...] 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 12, 2019 Category: Neurosurgery Authors: Rue ß, Daniel Fritsche, Fenja Grau, Stefan Treuer, Harald Hoevels, Mauritius Kocher, Martin Baues, Christian Ruge, Maximilian I. Tags: Original Article Source Type: research

Euclidean Relationship between the Superior Semicircular Canal and the Arcuate Eminence
Conclusions This study represents a comprehensive analysis of the relational anatomy of the floor of the middle fossa to date. In quantifying relationships between the AE, SSC, and GG, and by understanding the variability of these relationships in some planes, the middle fossa surgeon can feel more comfortable with this most challenging 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 - March 12, 2019 Category: Neurosurgery Authors: Nourbakhsh, Aida Tang, Yang DiPace, Brian S. Coelho, Daniel H. Tags: Original Article Source Type: research

Retrosigmoid Transmeatal Approach with 360-Degree Drilling of the Internal Auditory Canal for the Resection of Intracanalicular Meningioma
Conclusions The retrosigmoid transmeatal approach is suitable to achieve GTR in intracanalicular meningiomas. Some modifications of the approach intended for vestibular schwannomas are necessary and may be performed during the procedure.The link to the video can be found at: https://youtu.be/A9OXRFIl1e8. [...] 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 7, 2019 Category: Neurosurgery Authors: Ramina, Ricardo Constanzo, Felipe da Silva, Erasmo Barros Coelho Neto, Maur ício Tags: Skull Base: Operative Videos Source Type: research

Middle Fossa Approach for Resection of an Intracanalicular Vestibular Schwannoma
Conclusion With radiosurgery gaining increasing popularity, patients with intracanalicular vestibular schwannomas are frequently treated with it, or are managed with observation. The middle fossa approach is therefore becoming a “lost art,” but as demonstrated in this video, remains an effective technique for tumor removal and nerve preservation.The link to the video can be found at: https://youtu.be/MD6o3DF6jYg. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thieme eJournals: Table of contents  |  Abstract  |  open access Full text (Source: ...
Source: Journal of Neurological Surgery Part B: Skull Base - March 7, 2019 Category: Neurosurgery Authors: Jean, Walter C. Mueller, Kyle Kim, H. Jeffrey Tags: Skull Base: Operative Videos Source Type: research

Retrosigmoid Approach for Resection of Medium-Sized Vestibular Schwannoma
Conclusion The retrosigmoid approach is a good strategy to remove VS involving the CPA and the IAC.The link to the video can be found at: https://youtu.be/B6K_UkrKitg. [...] 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, 2019 Category: Neurosurgery Authors: Link, Michael J. Driscoll, Colin L. W. Feng, Yening Peris-Celda, Maria Graffeo, Christopher S. Tags: Skull Base: Operative Videos Source Type: research

Endoscopic Resection of a Cerebellopontine Angle Epidermoid Cyst via a Retrosigmoid Approach
J Neurol Surg B DOI: 10.1055/s-0039-1677852A variety of lesions may arise within the cerebellopontine angle (CPA). Schwannomas and meningiomas are most commonly found in this location; however epidermoid cysts may also be found in this area. Here, we present the case of a 31-year-old man with severe right facial pain. Magnetic resonance imaging (MRI) demonstrated a right CPA mass that had heterogenous intensity on T2-weighted imagining and restricted diffusion on diffusion-weighted imaging. The patient was offered resection of the mass for treatment of his facial pain via an endoscopic retrosigmoid approach. We provide a v...
Source: Journal of Neurological Surgery Part B: Skull Base - March 4, 2019 Category: Neurosurgery Authors: Hitti, Frederick Luke Lee, John Y.K. Tags: Skull Base: Operative Videos Source Type: research

Posterior Approach to Meckel's Cave: Retrosigmoid Craniectomy with Endoscopic Assistance
Conclusions The retrosigmoid approach is familiar to all neurosurgeons and with the adjunct of an angled endoscope, the posterior Meckel's cave can be easily reached. This is particularly useful for tumors with soft consistency. The assistance of the endoscope allows Meckel's cave visualization without additional drilling while still allowing safe resection of tumor from around the trigeminal nerve.The link to the video can be found at: https://youtu.be/01aqOyUmSW0. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thieme eJournals: Table of contents  |  Abstract  | ...
Source: Journal of Neurological Surgery Part B: Skull Base - March 4, 2019 Category: Neurosurgery Authors: Das, Paramita Borghei-Razavi, Hamid Moore, Nina Z. Recinos, Pablo F. Tags: Skull Base: Operative Videos Source Type: research

Translabyrinthine Approach for Resection of Vestibular Schwannoma
Conclusion This instructional video documents the surgical steps and relevant anatomy for translabyrinthine resection of vestibular schwannoma.The link to the video can be found at: https://youtu.be/CJ2vKMLs7aI. [...] 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 1, 2019 Category: Neurosurgery Authors: Feng, Yening Patel, Neil S. Gompel, Jamie J. Van Carlson, Matthew L. Tags: Skull Base: Operative Videos Source Type: research

Intentional Subtotal Resection of Vestibular Schwannoma: A Reexamination
J Neurol Surg B DOI: 10.1055/s-0039-1679898 Background Treatment of vestibular schwannomas (VS) remains controversial. Historical surgical series prioritized gross total resections (GTR); however, near total resections (NTR) and intentional subtotal resections (STR) aiming at improving cranial nerve outcomes are becoming more popular. Objective The main purpose of this article is to assess the tumor control and facial nerve outcomes in VS patients treated with STR or NTR. Methods VS patients undergoing STR or NTR at our institution between 1984 and 2016 were retrospectively reviewed. Patient demogra...
Source: Journal of Neurological Surgery Part B: Skull Base - March 1, 2019 Category: Neurosurgery Authors: Strickland, Ben A. Ravina, Kristine Rennert, Robert C. Jackanich, Anna Aaron, Ksenia Bakhsheshian, Joshua Russin, Jonathan J. Friedman, Rick A. Giannotta, Steven L. Tags: Original Article Source Type: research

Single-Step Resection of Sphenoorbital Meningiomas and Orbital Reconstruction Using Customized CAD/CAM Implants
Conclusions The concept of preoperative 3D virtual treatment planning and single-step orbital reconstruction with CAD/CAM implants after tumor resection involving the orbit is well feasible and can lead to good cosmetic results. [...] 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 1, 2019 Category: Neurosurgery Authors: Goertz, Lukas Stavrinou, Pantelis Stranjalis, George Timmer, Marco Goldbrunner, Roland Krischek, Boris Tags: Original Article Source Type: research

Super-resolution Diffusion Tensor Imaging for Delineating the Facial Nerve in Patients with Vestibular Schwannoma
Conclusion SRR improves the resolution of CN VII and VIII. The technique can be readily applied in the clinical setting, improving surgical counseling and planning in patients with VS. [...] 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 1, 2019 Category: Neurosurgery Authors: Epprecht, Lorenz Kozin, Elliott D. Piccirelli, Marco Kanumuri, Vivek V. Tarabichi, Osama Remenschneider, Aaron Barker, Frederick G. McKenna, Michael J. Huber, Alexander M. Cunnane, Marybeth E. Reinshagen, Katherine L. Lee, Daniel J. Tags: Original Article Source Type: research

Scalp Reconstruction after Malignant Tumor Resection: An Analysis and Algorithm
Conclusion Microsurgical reconstruction of moderate-to-extensive scalp defects remains a reliable method with overall low risks and satisfactory aesthetic results, while, according to our experience, muscle flaps show the best functional and aesthetic results. However, in cases of central scalp defects and in situations when a long vascular pedicle of the flap is important, the ALT flap seems to be the best solution. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Neurological S...
Source: Journal of Neurological Surgery Part B: Skull Base - March 1, 2019 Category: Neurosurgery Authors: Ehrl, Denis Brueggemann, Alexandra Broer, P. Niclas Koban, Konstantin Giunta, Riccardo Thon, Niklas Tags: Original Article Source Type: research

Systematic Review of Hearing Preservation in Observed Vestibular Schwannoma
J Neurol Surg B DOI: 10.1055/s-0039-1679894 Objective This is a systematic review of the literature on the spontaneous course of hearing in patients observed with a vestibular schwannoma. Included studies are appraised using the Grading of Recommendations Assessment, Development and Evaluation system. Design PubMed, Embase, Medline, Cochrane library, and CINAHL (Cumulative Index to Nursing and Allied Health Literature) were searched for literature on hearing in patients observed with a vestibular schwannoma. Participants Of 217 evaluated papers, 15 were included, representing a total of 2,142 patien...
Source: Journal of Neurological Surgery Part B: Skull Base - March 1, 2019 Category: Neurosurgery Authors: Reznitsky, Martin Cay é-Thomasen, Per Tags: Invited Review Source Type: research

Intralabyrinthine Schwannomas: Disease Presentation, Tumor Management, and Hearing Rehabilitation
J Neurol Surg B DOI: 10.1055/s-0039-1678731Intralabyrinthine schwannomas (ILS) are rare tumors that frequently cause sensorineural hearing loss. The development and increased use of magnetic resonance imaging in recent years have facilitated the diagnosis of these tumors that present with otherwise nondiscriminant symptoms such as tinnitus, vertigo, and hearing loss. The following is a review of the presentation, pathophysiology, imaging, and treatment with a focused discussion on auditory rehabilitation options of ILS. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thieme eJournals: Table of contents&n...
Source: Journal of Neurological Surgery Part B: Skull Base - March 1, 2019 Category: Neurosurgery Authors: Choudhury, Baishakhi Carlson, Matthew L. Jethanamest, Daniel Tags: Invited Review Source Type: research

Staged Approach for Petroclival Meningioma Resection
Conclusion Staged approach for petroclival meningiomas represents a safe and effective surgical management, tolerable for the patient and more comfortable for the neurosurgeon.The link to the video can be found at: https://youtu.be/QJJchjAwD5c. [...] 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 - February 28, 2019 Category: Neurosurgery Authors: Klironomos, Georgios Chiluwal, Amrit Dehdashti, Amir Reza Tags: Skull Base: Operative Videos Source Type: research