Article
Clinical Neurology
Nickalus R. Khan, Turki Elarjani, Aria M. Jamshidi, Stephanie H. Chen, Clifford S. Brown, Josh Abecassis, Michael A. Silva, Victor M. Lu, Eva Wu, Monica Diaz-Kanelidis, Rita Bhatia, Michael E. Hoffer, Adrien A. Eshraghi, Christine T. Dinh, Simon I. Angeli, Fred F. Telischi, Jacques J. Morcos
Summary: This study retrospectively evaluated the clinical and surgical outcomes of a large surgical series of vestibular schwannoma in North America over 20 years. The study found that facial nerve outcomes were correlated with cerebellopontine angle extension, tumor volume, facial nerve stimulation threshold, facial nerve consistency, preoperative facial nerve function, and history of a prior resection. The data supports a continuation of a strategy of gross total resection, modifiable by intraoperative findings and judgment.
WORLD NEUROSURGERY
(2022)
Review
Clinical Neurology
Max Whitmeyer, Bledi C. Brahimaj, Andre Beer-Furlan, Sameer Alvi, Madeline J. Epsten, Fred Crawford, Richard W. Byrne, R. Mark Wiet
Summary: This study focused on evaluating the outcomes of salvage microsurgery (MS) after stereotactic radiosurgery (SRS) for vestibular schwannomas (VS) based on a review of 20 studies and 300 cases. The primary indication for salvage surgery was tumor growth after an average of 39.4 months post-radiation. The study found no significant differences in outcomes based on surgical approach, but patients who underwent subtotal resection (STR) showed better House-Brackmann outcomes compared to those who had gross-total resection (GTR).
JOURNAL OF NEUROSURGERY
(2021)
Review
Clinical Neurology
Vera Ong, Ashley B. Zhang, Bayard Wilson, Nolan J. Brown, Brian V. Lien, Shane Shahrestani, Isaac Yang
Summary: This study provides a bibliometric analysis of hearing preservation in treating vestibular schwannomas, revealing a lack of prospective studies and novel treatment options in the current literature.
WORLD NEUROSURGERY
(2022)
Review
Clinical Neurology
Mingbin Bao, Yunsen He, Ye Tao, Li Liu, Yuheng Li, Yongjun Zhu, Qinjiang Huang, Mengjun Zhang, Bo Wu, Hao Wang
Summary: This article reports a case of a giant vestibular schwannoma during pregnancy, highlighting the importance of early diagnosis and treatment, and providing insights into the optimal timing for surgery.
FRONTIERS IN NEUROLOGY
(2023)
Article
Clinical Neurology
Zane Schnurman, Jason Gurewitz, Eric Smouha, Sean O. McMenomey, J. Thomas Roland, John G. Golfinos, Douglas Kondziolka
Summary: Through propensity score matching, this study found no significant difference in the loss of class A or serviceable hearing between patients managed with SRS or observation alone when controlling for potential confounders.
Article
Clinical Neurology
Kareem O. Tawfik, Marin McDonald, Yin Ren, Omid Moshtaghi, Marc S. Schwartz, Rick A. Friedman
Summary: The study found that preoperative cochlear FIESTA/CISS signal intensity may impact hearing outcomes after surgery for acoustic neuroma. Lower FIESTA/CISS signal ratios were associated with greater declines in hearing, suggesting a potential predictive value for postoperative hearing loss.
OTOLOGY & NEUROTOLOGY
(2021)
Review
Clinical Neurology
Amey R. Savardekar, Danielle Terrell, Saudamini J. Lele, Ryan Diaz, Praneeth Reddy Keesari, Krystle Trosclair, Jennifer Kosty, Chiachien Jake Wang, Gale Gardner, Bharat Guthikonda
Summary: A meta-analysis comparing the outcomes of sporadic vestibular schwannoma patients treated with stereotactic radiosurgery (SRS) or microsurgery (MS) revealed comparable results in hearing preservation and tumor control, but a higher occurrence of facial nerve dysfunction in the microsurgery group.
WORLD NEUROSURGERY
(2022)
Article
Otorhinolaryngology
Nicole Peter, Alexander Huber, Simon Egli, Ulrike Held, Klaus Steigmiller, Christof Roosli
Summary: The study found no significant difference in contralateral hearing of patients with sporadic VS between the wait-and-scan group and therapy group. However, the mean difference in hearing thresholds compared to norm values was greater for high frequencies, particularly in male patients.
OTOLARYNGOLOGY-HEAD AND NECK SURGERY
(2022)
Article
Clinical Neurology
Jason Gurewitz, Zane Schnurman, Aya Nakamura, Ralph E. Navarro, Dev N. Patel, Sean O. McMenomey, J. Thomas Roland, John G. Golfinos, Douglas Kondziolka
Summary: This study aimed to investigate the relationship between hearing loss and tumor volumetric growth rates in patients with untreated vestibular schwannoma (VS). The results showed that larger initial tumor size and faster tumor growth rates were associated with an elevated risk of loss of class A and serviceable hearing.
JOURNAL OF NEUROSURGERY
(2022)
Article
Otorhinolaryngology
Yin Ren, Kareem O. Tawfik, Bill J. Mastrodimos, Roberto A. Cueva
Summary: Radiographic predictors such as tumor size and extension relative to the internal auditory canal play a significant role in hearing preservation after retrosigmoid resection of vestibular schwannomas. Patients with small intracanalicular tumors and good preoperative hearing have the highest rates of hearing preservation, while tumors extending into the cerebellopontine angle may have worse outcomes if they have greater posterior and caudal extension relative to the internal auditory canal.
OTOLARYNGOLOGY-HEAD AND NECK SURGERY
(2021)
Article
Medicine, Research & Experimental
Robert J. Macielak, John P. Marinelli, Samuel A. Spear, Debbie L. Hahs-Vaughn, Michael J. Link, Chad Nye, Matthew L. Carlson
Summary: In a national cohort of patients with sporadic vestibular schwannoma, the majority of patients do not use hearing assistive devices long-term, suggesting that most patients adjust to unilateral hearing loss or are unsatisfied with current device options.
Article
Public, Environmental & Occupational Health
Michal Zurek, Tomasz Wojciechowski, Kazimierz Niemczyk
Summary: This study aimed to report the epidemiological characteristics and treatment of tumors of the cerebellopontine angle and internal acoustic meatus in the adult Polish population. A retrospective analysis of patients diagnosed with these tumors from 2011 to 2020 was conducted. The incidence of these tumors has increased over the past decade, with more patients opting for radiotherapy instead of surgery. Common symptoms include vertigo, dizziness, and sensorineural hearing loss. Sudden sensorineural hearing loss is an uncommon manifestation of these tumors but should be properly diagnosed as it indicates a higher risk of tumor detection.
Review
Clinical Neurology
Elie Massaad, Nima Hamidi, Jacalynn Goetz, Varun Padmanaban, Christine Mau, Derek Tsang, Fabio Y. de Moraes, Caroline Chung, Brad E. Zacharia, Alireza Mansouri
Summary: The evidence collected demonstrates that radiosurgery for cystic vestibular schwannomas exhibits effective tumor control probabilities similar to solid counterparts. It is necessary to establish consensus definitions and standard criteria in the future to better understand tumor growth patterns, treatment response, as well as long-term neurological and functional outcomes following radiosurgery for cystic vestibular schwannomas.
WORLD NEUROSURGERY
(2021)
Review
Neurosciences
Sanjeev Kumar, Debabrata Sahana, Anirudh Nair, Lavlesh Rathore, Rajiv K. Sahu, Amit Jain, Praveen Borde, Manish Tawari, Satya Narayan Madhariya, Suresh Nair
Summary: This review provides an overview of available hearing rehabilitation modalities and highlights the importance of hearing rehabilitation following treatment for vestibular schwannoma.
Article
Otorhinolaryngology
Yin Ren, Bridget MacDonald, Kareem O. Tawfik, Marc S. Schwartz, Rick A. Friedman
Summary: Clinical predictors of facial nerve outcomes after microsurgical resection of vestibular schwannoma were identified, indicating excellent outcomes can be achieved with this procedure. Gross total resection and >= 100-mu V intraoperative FN electromyographic response were found to predict excellent FN outcomes.
OTOLARYNGOLOGY-HEAD AND NECK SURGERY
(2021)
Review
Clinical Neurology
Komal Preet, Vera Ong, John P. Sheppard, Methma Udawatta, Courtney Duong, Prasanth Romiyo, Thien Nguyen, Isabelle Kwan, Isaac Yang
Article
Clinical Neurology
John P. Sheppard, Carlito Lagman, Thien Nguyen, Hana Yokoi, Stacy H. Jeong, Peter Luong, Cheng Hao Jacky Chen, Vera Ong, Alexis French, Alyssa M. Franks, Isabelle Kwan, Mahlet Mekonnen, Edwin Ng, Audree Evans, Komal Preet, Methma Udawatta, Isaac Yang
Summary: The volume of academic publications among successful neurosurgery applicants in the U.S. has increased over the years, with a positive association with the reputation of matched residency programs. Men, PhD-holders, graduates from top 20 and top 40 U.S. medical schools, and IMGs generally had higher pre-residency publication counts. However, after stratifying by match cohort, gender did not have a significant effect on pre-residency publications.
JOURNAL OF THE NEUROLOGICAL SCIENCES
(2021)
Review
Oncology
Ansley Unterberger, Thien Nguyen, Courtney Duong, Aditya Kondajji, Daniel Kulinich, Isaac Yang
Summary: This study examined the impact of adjuvant radiotherapy (ART) on survival outcomes for high-grade meningiomas post-surgery compared to surgery alone. The results suggest that (surgery+ART) may increase progression free survival, overall survival, and tumor control rates in high-grade meningiomas. Further studies involving surgery+ ART are needed to fully evaluate the ideal radiosurgical candidate, modality, and dosage.
JOURNAL OF NEURO-ONCOLOGY
(2021)
Review
Clinical Neurology
Nolan J. Brown, Bayard Wilson, Shane Shahrestani, Elliot H. Choi, Brian Lien, Anushka Paladugu, Katelynn Tran, Seth C. Ransom, Ali R. Tafreshi, Ryan Chase Ransom, Ronald Sahyouni, Alvin Y. Chan, Isaac Yang
Summary: This article conducts a bibliometric analysis of the 100 most-cited articles on medulloblastoma, identifying key contributions to the understanding of this common pediatric brain tumor. The results provide insights into the histopathologic and molecular classification of medulloblastoma, as well as the efficacy of therapeutic interventions.
WORLD NEUROSURGERY
(2021)
Review
Clinical Neurology
Daniel P. Kulinich, John P. Sheppard, Thien Nguyen, Aditya M. Kondajji, Ansley Unterberger, Courtney Duong, Adam Enomoto, Kunal Patel, Isaac Yang
Summary: The combination of re-irradiation therapy (reRT) and bevacizumab (BVZ) therapy may improve overall survival (OS) and reduce rates of radiation necrosis (RN) in recurrent high-grade gliomas (HGG) patients. However, further controlled studies are needed to confirm these effects.
ACTA NEUROCHIRURGICA
(2021)
Article
Clinical Neurology
Shelby Willis, Courtney Duong, Isaac Yang, Quinton Gopen
Summary: Sigmoid sinus dehiscence (SSD) is a common condition in non-PT patients, with 34% prevalence in this study. The study established a grading system for SSD, with 75% Grade 1 and 25% Grade 2 dehiscences. Grade 3 dehiscences were absent in this non-PT cohort.
JOURNAL OF CLINICAL NEUROSCIENCE
(2021)
Review
Clinical Neurology
Aditya M. Kondajji, Audree Evans, Meachelle Lum, Daniel Kulinich, Ansley Unterberger, Kevin Ding, Courtney Duong, Kunal Patel, Isaac Yang
Summary: Stereotactic Radiofrequency Ablation (SRFA) appears to be a potential therapy for patients with hypothalamic hamartomas (HHs) suffering from refractory seizures, with the majority of patients experiencing some extent of therapeutic benefit and a significant percentage achieving complete freedom from seizures. Common transient complications include hyponatremia, hyperphagia, hyperthermia, Horner's syndrome, and weight gain. Further case series and clinical trials are needed to establish the efficacy of SRFA for HHs due to limited available data.
JOURNAL OF THE NEUROLOGICAL SCIENCES
(2021)
Article
Clinical Neurology
Edjah K. Nduom, Melanie Hayden Gephart, Milan G. Chheda, Mario L. Suva, Nduka Amankulor, James D. Battiste, Jian L. Campian, Ralph G. Dacey, Sunit Das, Peter E. Fecci, Constantinos G. Hadjipanayis, Kimberly B. Hoang, Ali Jalali, Daniel Orringer, Akash J. Patel, Dimitris Placantonakis, Analiz Rodriguez, Isaac Yang, Jennifer S. Yu, Greg J. Zipfel, Gavin P. Dunn, Eric C. Leuthardt, Albert H. Kim
Summary: A bold new approach is proposed to routinely biopsy recurrent GBM at the time of presumed recurrence, to help identify true recurrence vs treatment effect, avoid futile treatments, enable clinical trial access, and advance scientific understanding of GBM.
Review
Oncology
Ashley B. B. Zhang, Khashayar Mozaffari, Brian Aguirre, Victor Li, Rohan Kubba, Nilay C. Desai, Darren Wei, Isaac Yang, Madhuri Wadehra
Summary: Glioblastoma, the most common malignant primary brain tumor, has a poor prognosis despite advancements in treatment. Angiogenesis, particularly involving vascular endothelial growth factor-A (VEGF-A), plays a critical role in the growth and invasion of glioblastoma cells. Bevacizumab, a medication targeting VEGF-A, has been approved for recurrent glioblastoma but has not significantly improved survival. Other agents with similar mechanisms of action have also shown unfavorable results. This review explores the current state and future potential of anti-angiogenesis therapeutic agents.
Review
Surgery
Nolan J. Brown, Bayard Wilson, Stephen Szabadi, Cameron Quon, Vera Ong, Alexander Himstead, Nathan A. Shlobin, Chen Yi Yang, Brian V. Lien, Shane Shahrestani, Katelynn Tran, Ali R. Tafreshi, Jack Birkenbeuel, Seth C. Ransom, Elliot H. Choi, Ronald Sahyouni, Alvin Y. Chan, Aaron Kheriaty, Isaac Yang
Summary: This article discusses the ethical issues of canceling elective surgeries during the COVID-19 pandemic, including beneficence, non-maleficence, justice, and autonomy. The paper points out that postponing non-urgent surgeries can cause cumulative harm and proposes a method to address these issues by improving algorithms to increase healthcare access and reduce long-term harm.
PATIENT SAFETY IN SURGERY
(2021)
Review
Clinical Neurology
Prasanth Romiyo, Kevin Ding, Dillon Dejam, Alyssa Franks, Edwin Ng, Komal Preet, Alexander M. Tucker, Tianyi Niu, Daniel T. Nagasawa, Shayan Rahman, Isaac Yang
Summary: This study identified ideal predictive models for spinal surgeries and emphasized the importance of using reliable variables and larger prospective databases for future optimization. These models showed promise in evaluating patients as candidates for spinal procedures.
JOURNAL OF THE NEUROLOGICAL SCIENCES
(2021)
Review
Surgery
Michael Johanis, Russell De Jong, Tyler Miao, Leslie Hwang, Meachelle Lum, Taranjit Kaur, Shelby Willis, John J. Arsenault, Courtney Duong, Isaac Yang, Quinton Gopen
Summary: Superior semicircular canal dehiscence (SSCD) and endolymphatic hydrops (EH) have overlapping symptoms but result from different pathophysiologies and require different interventions. Concurrent SSCD and EH is rare but can be treated with medications and hearing aids. Post-surgical persistence of shared symptoms is a key indicator for physicians to investigate for concurrent EH and consider ordering an MRI.
INTERNATIONAL JOURNAL OF SURGERY CASE REPORTS
(2021)
Letter
Clinical Neurology
Methma Udawatta, Vera Ong, Courtney Duong, Yasmine Alkhalid, Thien Nguyen, Jos'lyn Woodard, Isaac Yang
Article
Clinical Neurology
Vivian Wung, Prasanth Romiyo, Edwin Ng, Courtney Duong, Thien Nguyen, David Seo, Isaac Yang, Quinton Gopen
JOURNAL OF NEUROSURGERY
(2020)
Meeting Abstract
Oncology
Ansley Unterberger, Aditya Kondajji, Daniel Kulinich, Courtney Duong, Isaac Yang
Review
Clinical Neurology
Oday Atallah, Amr Badary, Yasser F. Almealawy, Vivek Sanker, Wireko Andrew Awuah, Toufik Abdul-Rahman, Sura N. Alrubaye, Bipin Chaurasia
Summary: This study investigates unexpected deaths resulting from primary brain tumors and analyzes the contributing variables. The findings reveal that unexpected deaths are a complex phenomenon, with headache being the most common initial symptom and meningiomas and astrocytomas being the most common lesions.
JOURNAL OF CLINICAL NEUROSCIENCE
(2024)
Article
Clinical Neurology
Alexandra E. Quimby, Mandy K. Salmon, Christopher H. Zhao, John Y. K. Lee, Douglas C. Bigelow, Michael J. Ruckenstein, Jason A. Brant
Summary: The study found that socioeconomic factors including race, health insurance, and income have an impact on the quality of life at the time of vestibular schwannoma diagnosis. Black/African American and uninsured/self-pay patients had lower quality of life, while patients with higher income had higher quality of life.
JOURNAL OF CLINICAL NEUROSCIENCE
(2024)
Review
Clinical Neurology
Arosha S. Dissanayake, Kwok M. Ho, Timothy J. Phillips, Stephen Honeybul, Graeme J. Hankey
Summary: This study systematically reviews models that aim to provide patient-specific predictions of pre-treatment rebleeding risk in patients with aneurysmal subarachnoid hemorrhage. The reported discriminative performance of the models varied, and no model showed consistently low bias risk and clinical applicability in all domains. Only one model was formulated using a patient cohort that underwent contemporary, evidence-based aneurysm treatment practices, but this model lacked calibration or clinical utility.
JOURNAL OF CLINICAL NEUROSCIENCE
(2024)
Article
Clinical Neurology
Colin Kok Ann Teo, Yilong Zheng, Jeremy Bingyuan Lin, Hock Luen Teoh, Bernard Poon Lap Chan, Vijay Kumar Sharma, Kejia Teo, Vincent Diong Weng Nga, Tseng Tsai Yeo
Summary: This study retrospectively reviewed the clinical characteristics and outcomes after surgical revascularization for adult Moyamoya disease (MMD) in a Southeast Asian cohort. The incidence of postoperative transient ischemic attack (TIA)/stroke was 25.9%, with most cases occurring within 7 days postoperatively. Risk factors for 30-day postoperative TIA/stroke included a higher number of preoperative TIAs/strokes and indirect revascularization.
JOURNAL OF CLINICAL NEUROSCIENCE
(2024)
Article
Clinical Neurology
Cheng-Chi Lee, Abel Po-Hao Huang, Ching-Chang Chen, Zhuo-Hao Liu, Mun-Chun Yeap, Ko-Ting Chen, Peng-Wei Hsu, Kuo-Chen Wei, Chun-Ting Chen, Yu-Chi Wang, Ting-Wei Chang, Chi-Cheng Chuang
Summary: Using a novel portable neuroendoscopic system for minimally invasive evacuation of intracerebral hemorrhage (ICH) has shown positive outcomes in reducing hematoma volume and improving neurological function without any death or rebleeding incidents.
JOURNAL OF CLINICAL NEUROSCIENCE
(2024)
Article
Clinical Neurology
Michael M. Haglund, Bruce M. McCormack, Daniel M. Williams, Alexander C. Lemons, Erik M. Summerside
Summary: This study evaluated the long-term radiographic outcomes of patients receiving tissue-sparing posterior cervical fusion (PCF) for the treatment of pseudarthrosis. The results showed that patients achieved rates of arthrodesis similar to open PCF, with fewer postoperative complications and long-term soft tissue pain.
JOURNAL OF CLINICAL NEUROSCIENCE
(2024)
Article
Clinical Neurology
Dong-Dong Meng, Zhe Ruan, Yong-Lan Tang, Zhao-Hua Ji, Yue Su, Tuo Xu, Bo-Zhou Cui, Da-Lin Ren, Ting Chang, Qian Yang
Summary: Depression symptom level, MG severity classification and family's monthly per capita income are independent factors related to the caregivers' disease family burden for MG patients. The daily activity burden of the family and the economic burden of the family were the heaviest among the six dimensions of the caregivers' family disease burdens.
JOURNAL OF CLINICAL NEUROSCIENCE
(2024)
Article
Clinical Neurology
Tugba Ozudogru Celik, Umit Gorgulu, Safiye Gul Kenar, Nadide Koca, Elif Yalcin, Ipek Koymen, Evren Yasar
Summary: This study investigated the forward head posture (FHP), thoracic kyphosis, and their relationship in individuals with migraine compared to healthy controls. The results showed that patients with migraine had a greater FHP and thoracic kyphosis. This suggests that a 3-dimensional objective measurement could be a reliable tool for evaluating posture analysis in clinical practice.
JOURNAL OF CLINICAL NEUROSCIENCE
(2024)
Article
Clinical Neurology
Jason A. Chen, Ari D. Kappel, Erickson F. Torio, David I. Bass, Abdullah Feroze, Nirav J. Patel
Summary: This report presents a case of a 63-year-old woman with a ruptured giant ICA terminus aneurysm, who underwent coil embolization followed by parent vessel sacrifice and high-flow bypass.
JOURNAL OF CLINICAL NEUROSCIENCE
(2024)
Article
Clinical Neurology
Sandeep Kandregula, Sneha Sai Mannam, Shahbaz Saad, Saarang Patel, Visish M. Srinivasan
Summary: A 39-year-old female with a history of smoking and a family predisposition to unruptured aneurysms presented with clinical symptoms of intermittent right-sided headaches, flashes of light, and pulsatile tinnitus. Diagnostic evaluations identified a right occipital arteriovenous malformation (AVM). Treatment involved partial embolization of primary arterial feeders followed by surgical resection, resulting in a successful outcome.
JOURNAL OF CLINICAL NEUROSCIENCE
(2024)
Article
Clinical Neurology
Ari D. Kappel, Jason A. Chen, Joshua I. Chalif, David I. Bass, Erickson F. Torio, Abdullah H. Feroze, Nirav J. Patel
Summary: A 48-year-old male with progressive congestive myelopathy underwent surgical clipping to treat a craniocervical DAVF. Intraoperatively, ICG was used to confirm the solitary inflow.
JOURNAL OF CLINICAL NEUROSCIENCE
(2024)
Article
Clinical Neurology
Aryeh Zolin, Cenai Zhang, Hwai Ooi, Harini Sarva, Hooman Kamel, Neal S. Parikh
Summary: In people with Parkinson's disease, comorbid liver fibrosis is associated with more rapid cognitive decline across multiple domains.
JOURNAL OF CLINICAL NEUROSCIENCE
(2024)