Grace M. Thiong’o  MD , Thomas Looi  PhD , James T. Rutka  MD, PhD, FRCSC , Abhaya V. Kulkarni  MD, PhD, FRCSC , and James M. Drake  MBBCh
doi : 10.3171/2022.5.JNS22545
Volume 138: Issue 1 (Jan 2023)
Early adaptors of surgical simulation have documented a translation to improved intraoperative surgical performance. Similar progress would boost neurosurgical education, especially in highly nuanced epilepsy surgeries. This study introduces a hands-on cerebral hemispheric surgery simulator and evaluates its usefulness in teaching epilepsy surgeries.
Mathias Kunz  MD , Philipp Karschnia  MD , Ingo Borggraefe  MD , Soheyl Noachtar  MD , Joerg-Christian Tonn  MD , and Christian Vollmar  MD, PhD
doi : 10.3171/2022.4.JNS212753
Reoperation may be an option for select patients with unsatisfactory seizure control after their first epilepsy surgery. The aim of this study was to describe the seizure-free outcome and safety of repeated epilepsy surgery in our tertiary referral center.
Joseph H. Garcia  BS , Ramin A. Morshed  MD , Jason Chung  MD, PhD , Miguel A. Millares Chavez  MD , Vivek Sudhakar  MD , Satvir Saggi  BS , Lauro N. Avalos  BS , Aaron Gallagher  BS , Jacob S. Young  MD , Mariza Daras  MD , Michael W. McDermott  MD , Paul A. Garcia  MD , Edward F. Chang  MD , and Manish K. Aghi  MD, PhD
doi : 10.3171/2022.3.JNS212285
Epileptic seizures are a common and potentially devastating complication of metastatic brain tumors. Although tumor-related seizures have been described in previous case series, most studies have focused on primary brain tumors and have not differentiated between different types of cerebral metastases.
Yijie Lai  MD , Naying He  MD, PhD , Hongjiang Wei  PhD , Lifu Deng  PhD , Haiyan Zhou  MD, PhD , Jun Li  PhD , Marcus Kaiser  PhD , Chencheng Zhang  MD, PhD , Dianyou Li  MD, PhD , and Bomin Sun  MD, PhD
doi : 10.3171/2022.3.JNS212732
Functional connectivity shows the ability to predict the outcome of subthalamic nucleus deep brain stimulation (DBS) in Parkinson disease (PD).
Jun Torii  MD , Satoshi Maesawa  MD, PhD , Daisuke Nakatsubo  MD , Takahiko Tsugawa  MD, PhD , Sachiko Kato  MD , Tomotaka Ishizaki  MD, PhD , Sou Takai  MD , Masashi Shibata  MD , Toshihiko Wakabayashi  MD, PhD , Takashi Tsuboi  MD, PhD , Masashi Suzuki  MD, PhD , and Ryuta Saito  MD, PhD
doi : 10.3171/2022.3.JNS212460
The efficacy of magnetic resonance–guided focused ultrasound (MRgFUS) ablation for essential tremor (ET) is well known; however, no prognostic factors have been established. The authors aimed to retrospectively investigate MRgFUS ablation outcomes and associated factors and to define the cutoff values for each prognostic factor.
Jason Yuen  MSci, BMBCh , Abhinav Goyal  BS , Timothy J. Kaufmann  MD, MS , Lauren M. Jackson  MD , Kai J. Miller  MD, PhD , Bryan T. Klassen  MD , Neha Dhawan  MS , Kendall H. Lee  MD, PhD , and Vance T. Lehman  MD
doi : 10.3171/2022.5.JNS22350
One of the key metrics that is used to predict the likelihood of success of MR-guided focused ultrasound (MRgFUS) thalamotomy is the overall calvarial skull density ratio (SDR). However, this measure does not fully predict the sonication parameters that would be required or the technical success rates. The authors aimed to assess other skull characteristics that may also contribute to technical success.
Noah M. Nichols  MD and Constantinos G. Hadjipanayis  MD, PhD
doi : 10.3171/2022.3.JNS22564
Extent of resection (EOR) is a significant modifiable prognostic factor in patients undergoing treatment for newly diagnosed glioblastoma (nGBM).1–3
Long Di  MD , Ashish H. Shah  MD , Anil Mahavadi  MD , Daniel G. Eichberg  MD , Raghuram Reddy  BS , Alexander D. Sanjurjo  BS , Alexis A. Morell  MD , Victor M. Lu  MD, PhD , Leonel Ampie  MD , Evan M. Luther  MD , Ricardo J. Komotar  MD , and Michael E. Ivan  MD, MBS
doi : 10.3171/2022.3.JNS212399
Supramaximal resection (SMR) has arisen as a possible surrogate to gross-total resection (GTR) to improve survival in newly diagnosed glioblastoma (nGBM).
Silky Chotai  MD , Alan R. Tang  BA , Jake R. McDermott  BA , Bradley S. Guidry  BS , Candace J. Grisham  BE , Aaron M. Yengo-Kahn  MD , Peter J. Morone  MD, MSCI , Reid C. Thompson  MD , and Lola B. Chambless  MD
doi : 10.3171/2022.4.JNS22290
Excision of intracranial meningiomas often requires resection or coagulation of the dura mater. The choice of dural closure technique is individualized and based on surgeon preference. The objective of this study was to determine outcomes following various dural closure techniques for supratentorial meningiomas.
Norio Ichimasu  MD , Michihiro Kohno  MD , Nobuyuki Nakajima  MD , Hiroki Sakamoto  MD , Ken Matsushima  MD , Masanori Yoshino  MD , and Kiyoaki Tsukahara  MD
doi : 10.3171/2022.3.JNS212477
Tumors around the cerebellopontine angle (CPA) and temporal bone can potentially affect hearing function. In patients with such tumors other than vestibular schwannomas (VSs), auditory tests were investigated before and after surgery to characterize the auditory effect of each tumor and to determine prognostic factors.
Minh P. Nguyen  BS , Ramin A. Morshed  MD , Cecilia L. Dalle Ore  MD , Daniel D. Cummins  BS , Satvir Saggi  BS , William C. Chen  MD , Abrar Choudhury  PhD , Akshay Ravi  MD , David R. Raleigh  MD, PhD , Stephen T. Magill  MD, PhD , Michael W. McDermott  MD , and Philip V. Theodosopoulos  MD
doi : 10.3171/2022.4.JNS212516
Meningiomas are the most common primary intracranial tumor, and resection is a mainstay of treatment. It is unclear what duration of imaging follow-up is reasonable for WHO grade I meningiomas undergoing complete resection.
Alexander Ramos  MD, PhD , Joseph A. Carnevale  MD , Kashif Majeed  MD , Gary Kocharian  MD , Ibrahim Hussain  MD , Jacob L. Goldberg  MD , Justin Schwarz  MD , David I. Kutler  MD , Jared Knopman  MD , and Philip Stieg  PhD, MD
doi : 10.3171/2022.3.JNS22136
Carotid body tumors (CBTs) are rare, slow-growing neoplasms derived from the parasympathetic paraganglia of the carotid bodies. Although inherently vascular lesions, the role of preoperative embolization prior to resection remains controversial.
Penny K. Sneed  MD , Jason W. Chan  MD , Lijun Ma  PhD , Steve E. Braunstein  MD, PhD , Philip V. Theodosopoulos  MD , Shannon E. Fogh  MD , Jean L. Nakamura  MD , Lauren Boreta  MD , David R. Raleigh  MD, PhD , Benjamin P. Ziemer  PhD , Olivier Morin  PhD , Shawn L. Hervey-Jumper  MD , and Michael W. McDermott  MD
doi : 10.3171/2022.4.JNS212597
The authors previously evaluated risk and time course of adverse radiation effects (AREs) following stereotactic radiosurgery (SRS) for brain metastases, excluding lesions treated after prior SRS.
Hirotaka Hasegawa  MD, PhD , Akitoshi Inoue  MD, PhD , Ahmed Helal  MBBCh, MSc , Kosuke Kashiwabara  PhD , and Fredric B. Meyer  MD
doi : 10.3171/2022.4.JNS22276
Pineal cyst (PC) is a relatively common true cyst in the pineal gland. Its long-term natural course remains ill defined. This study aims to evaluate the long-term natural history of PC and examine MRI risk factors for cyst growth and shrinkage to help better define which patients might benefit from surgical intervention.
Masahiro Tanji  MD, PhD , Yohei Mineharu  MD, PhD , Akihiko Sakata  MD, PhD , Sachi Okuchi  MD, PhD , Yasutaka Fushimi  MD, PhD , Masahiro Oishi  MD, PhD , Yukinori Terada  MD, PhD , Noritaka Sano  MD, PhD , Yukihiro Yamao  MD, PhD , Yoshiki Arakawa  MD, PhD , Kazumichi Yoshida  MD, PhD , and Susumu Miyamoto  MD, PhD
doi : 10.3171/2022.4.JNS212505
This study aimed to examine the association of preoperative intratumoral susceptibility signal (ITSS) grade with hemorrhage after stereotactic biopsy (STB).
Joshua S. Catapano  MD , Kavelin Rumalla  MD , Visish M. Srinivasan  MD , Peter M. Lawrence  MS, CMI , Kristen Larson Keil  MS, CMI , and Michael T. Lawton  MD
doi : 10.3171/2022.3.JNS22626
Medullary cavernous malformations are the least common of the brainstem cavernous malformations (BSCMs), accounting for only 14% of lesions in the authors’ surgical experience. In this article, a novel taxonomy for these lesions is proposed based on clinical presentation and anatomical location.
Takeshi Hara  MD , Toshinori Matsushige  MD , Michitsura Yoshiyama  MD , Yukishige Hashimoto  MD , Shohei Kobayashi  MD , and Shigeyuki Sakamoto  MD
doi : 10.3171/2022.4.JNS22421
Recent histopathological studies of unruptured intracranial aneurysms (UIAs) have confirmed that aneurysm wall enhancement (AWE) on MR vessel wall imaging (VWI) is related to wall degeneration with in vivo inflammatory cell infiltration. Therefore, pretreatment aneurysm wall status on VWI may be associated with recurrence after endovascular treatment.
Muhammad Ali  BA , Xiangnan Zhang  MS , Luis C. Ascanio  MD , Zachary Troiani  BS , Colton Smith  BS , Neha S. Dangayach  MD , John W. Liang  MD , Magdy Selim  MD, PhD , J Mocco  MD , and Christopher P. Kellner  MD
doi : 10.3171/2022.3.JNS22286
Intracerebral hemorrhage (ICH) is a devastating form of stroke with no proven treatment. However, minimally invasive endoscopic evacuation is a promising potential therapeutic option for ICH.
Daniel Mandel  MD , Scott Moody  BA , Kelly Pan  BS , Thanujaa Subramaniam  MD , Bradford B. Thompson  MD , Linda C. Wendell  MD , Michael E. Reznik  MD , Karen L. Furie  MD, MPH , and Ali Mahta  MD
doi : 10.3171/2022.3.JNS22157
Nonaneurysmal perimesencephalic subarachnoid hemorrhage (pmSAH) is considered to have a lower-risk pattern than other types of subarachnoid hemorrhage (SAH).
Annick Kronenburg  MD , Pieter T. Deckers  MD , Esther van den Berg  PhD , Monique M. van Schooneveld  PhD , Evert-Jan Vonken  MD, PhD , Albert van der Zwan  MD, PhD , Bart N. M. van Berckel  MD, PhD , Maqsood Yaqub  PhD , Willem Otte  PhD , Catharina J. M. Klijn  MD, PhD , and Kees P. J. Braun  MD, PhD
doi : 10.3171/2022.3.JNS212844
Patients with moyamoya vasculopathy often experience cognitive impairments. In this prospective single-center study, the authors investigated the profile of neurocognitive impairment and its relation with the severity of ischemic brain lesions and hemodynamic compromise.
Wei-Dong Xu  MS , Ru-Dong Chen  BS , Sheng-Qi Hu  BS , Yu-Yang Hou  BS , and Jia-Sheng Yu  MD
doi : 10.3171/2022.4.JNS22490
The aim of this study was to use morphological parameters of mirror posterior communicating artery (PCoA) aneurysms to evaluate aneurysm rupture risk.
Tadashi Yamaguchi  MD , Takeshi Miyamoto  MD PhD , Eiji Shikata  MD , Izumi Yamaguchi  MD, PhD , Kenji Shimada  MD, PhD , Kenji Yagi  MD, PhD , Yoshiteru Tada  MD, PhD , Masaaki Korai  MD, PhD , Keiko T. Kitazato  MS , Yasuhisa Kanematsu  MD, PhD , and Yasushi Takagi  MD, PhD
doi : 10.3171/2022.4.JNS212945
Subarachnoid hemorrhage (SAH) due to intracranial aneurysm (IA) rupture is often a devastating event. Since the incidence of SAH increases especially in menopause, it is crucial to clarify the detailed pathogenesis of these events.
Bennett R. Levy  BA , Muhammad Waqas  MBBS , Andre Monteiro  MD , Justin M. Cappuzzo  MD , Ammad A. Baig  MD , Wasiq I. Khawar  BA , Jason M. Davies  MD, PhD , Kenneth V. Snyder  MD, PhD , Adnan H. Siddiqui  MD, PhD , Howard A. Riina  MD, MPhil , and Elad I. Levy  MD, MBA
doi : 10.3171/2022.4.JNS22420
Carotid stenosis is currently treated by carotid endarterectomy (CEA), carotid artery stenting (CAS), or transcarotid artery revascularization (TCAR). This study sought to add to the literature by providing real-world data comparing the safety and effectiveness associated with the performance of these carotid revascularization techniques by dual-trained neurosurgeons.
Jie Yang  MS , Fengli Li  MD , Zhongming Qiu  MD , Yan Wang  MS , Jun Luo  MS , Youlin Wu  MS , Guoyong Zeng  MS , Yue Wan  MS , Shuai Liu  MS , Chengsong Yue  MS , Jiaxing Song  MS , Weidong Luo  MS , Chang Liu  MD , Linyu Li  MS , Ruidi Sun  MS , Jiacheng Huang  MD , Hongfei Sang  MD , Chenhao Zhao  MD , Qingwu Yang  MD , and Wenjie Zi  MD
doi : 10.3171/2022.4.JNS22355
The aim of this study was to investigate the efficacy and safety of endovascular treatment (EVT) plus standard medical treatment (SMT) in patients with acute basilar artery occlusion (BAO) within 6 hours of the estimated occlusion time, based on a Chinese population.
Peixi Liu  MD , Zongze Li  MD , Liuxun Hu  MD , Yingjun Liu  MD, PhD , Peiliang Li  MD, PhD , Wei Zhu  MD, PhD , Yanlong Tian  MD, PhD , and Ying Mao  MD, PhD
doi : 10.3171/2022.4.JNS22609
The authors aimed to evaluate the clinical features, endovascular strategy selection, and outcomes of vertebral artery (VA) dissecting aneurysms (VADAs) near the origin of the posterior inferior cerebellar artery (PICA).
Adnan I. Qureshi  MD , Yasemin Akinci  MD , Wei Huang  MA , Muhammad F. Ishfaq  MD , Ameer E. Hassan  DO , Farhan Siddiq  MD , and Camilo R. Gomez  MD
doi : 10.3171/2022.4.JNS22514
Intravenous (IV) recombinant tissue plasminogen activator (r-tPA) may not provide additional benefit in terms of functional outcomes in patients with acute ischemic stroke (AIS) who undergo endovascular treatment (EVT). In this context, the cost-effectiveness of EVT alone compared with its application following IV r-tPA has not been evaluated.
Gaurav Jindal  MD , Ranyah Almardawi  MBBS, MPH , Rishi Gupta  MD , Geoffrey P. Colby  MD, PhD , Clemens M. Schirmer  MD, PhD, MBA , Sudhakar R. Satti  MD , Bryan Pukenas  MD , Ferdinand K. Hui  MD , Justin Caplan  MD , Timothy Miller  MD , Jacob Cherian  MD , Francois Aldrich  MD , Gulam Kibria  MBBS, MSPH , J. Marc Simard  MD , and for the ULTRA Study Investigators
doi : 10.3171/2022.5.JNS2296
The ULTRA Registry is a national multicenter prospective study designed to assess aneurysm occlusion rates and safety profiles of the Target Ultra and Nano coils in the treatment of small intracranial aneurysms (IAs).
Po-Wei Huang  MD , Syu-Jyun Peng  PhD , David Hung-Chi Pan  MD , Huai-Che Yang  MD , Jo-Ting Tsai  MD, PhD , Cheng-Ying Shiau  MD , I-Chang Su  MD , Ching-Jen Chen  MD , Hsiu-Mei Wu  MD , Chung-Jung Lin  MD , Wen-Yuh Chung  MD , Wan-Yuo Guo  MD, PhD , Wei-Lun Lo  MD , Shao-Wen Lai , and Cheng-Chia Lee  MD, PhD
doi : 10.3171/2022.4.JNS212369
The goal of the study was to define and quantify brain arteriovenous malformation (bAVM) compactness and to assess its effect on outcomes after Gamma Knife radiosurgery (GKRS) for unruptured bAVMs.
James Feghali  MD , Albert Antar  BS , Elizabeth E. Wicks  BA , Shahab Aldin Sattari  MD , Sean Li , Timothy F. Witham  MD , Henry Brem  MD , and Judy Huang  MD
doi : 10.3171/2022.4.JNS22410
The authors aimed to characterize which US medical schools have the most female neurosurgery residents and to identify potential associations between medical school characteristics and successful recruitment of women pursuing a neurosurgery career.
Andy Y. Wang  AB , Vaishnavi Sharma  BA , Wenya Linda Bi  MD, PhD , William T. Curry  MD , Jeffrey E. Florman  MD , Michael W. Groff  MD , Carl B. Heilman  MD , Jennifer Hong  MD , James Kryzanski  MD , S. Scott Lollis  MD , Gerald T. McGillicuddy  MD , Jennifer Moliterno  MD , Christopher S. Ogilvy  MD , Dennis S. Oh  MD , Adetokunbo A. Oyelese  MD, PhD , Mark R. Proctor  MD , Perry A. Shear  MD , Andrew E. Wakefield  MD , Robert G. Whitmore  MD , and Ron I. Riesenburger  MD
doi : 10.3171/2022.3.JNS212777
The New England Neurosurgical Society (NENS) was founded in 1951 under the leadership of its first President (Dr. William Beecher Scoville) and Secretary-Treasurer (Dr. Henry Thomas Ballantine).
Risheng Xu  MD, PhD , Joshua Materi  BS , Divyaansh Raj  BS , Safwan Alomari  MD , Yuanxuan Xia  MD , Sumil K. Nair  BA , Pavan P. Shah  BS , Nivedha Kannapadi  BA , Timothy Kim  BS , Judy Huang  MD , Chetan Bettegowda  MD, PhD , and Michael Lim  MD
doi : 10.3171/2022.3.JNS212956
Internal neurolysis (IN) and intraoperative glycerin rhizotomy (ioGR) are emerging surgical options for patients with trigeminal neuralgia without neurovascular contact. The objective of this study was to compare the neurological outcomes of patients who underwent IN with those of patients who underwent ioGR.
Lorenzo Giammattei  MD , Thibault Passeri  MD , Rosaria Abbritti  MD , Stefan Lieber  MD , Fumihiro Matano  MD, PhD , Tuan Le Van  MD , Atsushi Okano  MD , Arianna Fava  MD , Paolo di Russo  MD , and Sébastien Froelich  MD
doi : 10.3171/2022.3.JNS212962
Concerns about the approach-related morbidity of the extradural anterior petrosal approach (EAPA) have been raised, especially regarding temporal lobe and venous injuries, hearing impairment, facial nerve palsy, cerebrospinal fluid fistula, and seizures. There is lack in the literature of studies with detailed analysis of surgical complications.
Anja I. Srienc  MD, PhD , Sophie C. Church  BA , Stephen J. Korn  PhD , Russell R. Lonser  MD , and Gregory J. Zipfel  MD
doi : 10.3171/2022.5.JNS212846
Binghao Zhao  MD , Hao Xing  MD , Yu Xia  MD , and Wenbin Ma  MD
doi : 10.3171/2022.6.JNS221338
Songshan Chai  MD, PhD , Qiangqiang Zhou  MD , Yuankun Cai  MD , Zhimin Mei  MD , and Nanxiang Xiong  MD, PhD
doi : 10.3171/2022.6.JNS221342
Josue M. Avecillas-Chasin  MD, PhD
doi : 10.3171/2022.7.JNS221572
Basel A. Taweel  MPhil , Cathal J. Hannan  MRCS , and Emmanuel Chavredakis  FRCS
doi : 10.3171/2022.5.JNS22904
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