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JOURNAL ARTICLE
Inês S Freire, Tânia S Lopes, Sónia G Afonso, Daniela J Pereira
INTRODUCTION: Diffusion tensor imaging (DTI) is a valuable non-invasive imaging modality for mapping white matter tracts and assessing microstructural integrity, and can be used as a "biomarker" in diagnosis, differentiation, and therapeutic monitoring. Although it has gained clinical importance as a marker of neuropathology, limitations in its interpretation underscore the need for caution. METHODS: This review provides an overview of the principles and clinical applicability of DTI...
April 18, 2024: Neuroradiology
#2
Galih Indra Permana, Takashi Morishita, Hideaki Tanaka, Ryuji Matsushita, Hiromasa Kobayashi, Hiroshi Abe
BACKGROUND: Deep brain stimulation (DBS) has consistently demonstrated high efficacy and safety in patients with Parkinson's disease. Twiddler's syndrome is a rare occurrence of hardware failure in patients undergoing neuromodulation. We report here a case of subclinical cable twisting jeopardizing Twiddler's syndrome in a patient with Parkinson's disease who underwent DBS surgery targeting the globus pallidus internus (GPI). CASE DESCRIPTION: A 70-year-old woman with a 7-year history of Parkinson's disease refractory to medication was referred to our department for treatment of involuntary movements of the left hand and leg...
2024: Surgical Neurology International
#3
Yukinori Takase, Tatsuya Tanaka, Satoshi Anai, May Pyae Kyaw, Yuhei Michiwaki, Hiroshi Itokawa, Fumitaka Yamane, Tatsuya Abe, Akira Matsuno
BACKGROUND: Treatment of calcified lesions with conventional angioplasty balloons can be difficult due to insufficient lumen expansion, high dissection rates, and repeated revascularization. We report a case in which a scoring balloon was used in lesions resistant to angioplasty with a semi-compliant balloon. CASE DESCRIPTION: A 72-year-old man presented with severe stenosis and a highly calcified lesion in the right cervical internal carotid artery. Right carotid artery stenting (CAS) was planned to prevent future ischemic stroke events...
2024: Surgical Neurology International
#4
JOURNAL ARTICLE
Shigeru Kamimura, Yuta Mitobe, Kazuki Nakamura, Kenichiro Matsuda, Yonehiro Kanemura, Masafumi Kanoto, Mitsuru Futakuchi, Yukihiko Sonoda
BACKGROUND: Although mutations in telomerase reverse transcriptase ( TERT ) promoter ( TERT p) are the most common alterations in glioblastoma (GBM), predicting TERT p mutation status by preoperative imaging is difficult. We determined whether tumour-surrounding hyperintense lesions on fluid-attenuated inversion recovery (FLAIR) were superior to those of contrast-enhanced lesions (CELs) in assessing TERT p mutation status using magnetic resonance imaging (MRI). METHODS: This retrospective study included 114 consecutive patients with primary isocitrate dehydrogenase (IDH)-wild-type GBM...
2024: Surgical Neurology International
#5
JOURNAL ARTICLE
Nadin J Abdala-Vargas, Paolo Palmisciano, Matías Baldoncini, Juan F Villalonga, Álvaro Campero
Large meningiomas extending through the middle cranial fossa, posterior fossa, and foramen magnum (FM) represent a surgical challenge even for experienced skull base surgeons.1 Although decompression may be necessary for offering clinical improvement, surgical risks may involve cranial nerves and vascular injury. We present a case of a sphenocavernopetroclival-FM meningioma, with our surgical plan extending through the sphenoid region, FM, and posterior fossa to the anterior arch of C1. We designed a 2-day, 3-stage surgical strategy to achieve complete surgical resection for offering better long-term prognosis and satisfactory postoperative neurological outcome...
April 16, 2024: Operative Neurosurgery (Hagerstown, Md.)
#6
JOURNAL ARTICLE
Vicente de Paulo Martins Coelho Junior, Joravar S Dhaliwal, Vikram B Chakravarthy
Around 40% of cancer patients present with spinal metastases (SM), the lumbar spine being the second most involved site (15%-30%) after the thoracic (60%-80%). Since the development of separation surgery, minimally invasive surgery (MIS) has increasingly been applied to approach SM, mirroring benefits yielded in the degenerative realm. Moreover, preoperative embolization potentially enhances local control for certain radioresistant histologies. Carbon fiber-reinforced PEEK hardware reduces image artifact, facilitating more accurate follow-up and radiotherapeutic planning...
April 2024: Neurosurgical focus: Video
#7
JOURNAL ARTICLE
Moon-Soo Han, Jong-Hwan Hong, Ji-Ho Jung, Jung-Kil Lee
OBJECTIVE: Several studies have investigated the mechanical behavior of the thoracolumbar spine. However, finding an accurate reference for the normal functional local alignment (LA) and segmental motion (SM) at the thoracolumbar junction (TLJ) is challenging. Therefore, this study aimed to assess age- and sex-related changes and differences in LA and SM at the TLJ. MATERIALS AND METHODS: The study recruited healthy subjects aged 20 to 79 without complaints of back pain...
April 12, 2024: World Neurosurgery
#8
REVIEW
Aurelia Peraud, Marie Schuler-Ortoli, Matthias Schaal, Frank Reister, Harald Ehrhardt, Ulrike Friebe-Hoffmann
OBJECTIVES: Prenatally diagnosed complex arachnoid cysts are very rare. While the true prenatal incidence is still unknown, they account for approximately 1% of intracranial masses in newborns. They rarely exhibit rapid growth or cause obstructive hydrocephalus, but if they increase to such a dimension during pregnancy, the ideal management is not well established. We present our detailed perinatal experience, covering prenatal diagnosis, a compassionate delivery process, and neonatal stabilization...
April 11, 2024: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
#9
JOURNAL ARTICLE
Lucy Liang, Isabela Zimmermann Rollin, Aydin Alikaya, Jonathan C Ho, Tales Santini, Andreea C Bostan, Helen N Schwerdt, William R Stauffer, Tamer S Ibrahim, Elvira Pirondini, David J Schaeffer
BACKGROUND: High-precision neurosurgical targeting in nonhuman primates (NHPs) often requires presurgical anatomy mapping with noninvasive neuroimaging techniques (MRI, CT, PET), allowing for translation of individual anatomical coordinates to surgical stereotaxic apparatus. Given the varied tissue contrasts that these imaging techniques produce, precise alignment of imaging-based coordinates to surgical apparatus can be cumbersome. MRI-compatible stereotaxis with radiopaque fiducial markers offer a straight-forward and reliable solution, but existing commercial options do not fit in conformal head coils that maximize imaging quality...
April 6, 2024: Journal of Neuroscience Methods
#10
REVIEW
Sukhraj Singh, Ramandeep Singh, Subodh Kumar, Ashish Suri
INTRODUCTION: High-fidelity visualization of anatomical organs is crucial for neurosurgical education, simulation, and planning. This becomes much more important for minimally invasive neurosurgical procedures. Realistic anatomical visualization can allow resident surgeons to learn visual cues and orient themselves with the complex 3D anatomy. Achieving full fidelity in 3D medical visualization is an active area of research, however, the prior reviews focus on the application area and lack the underlying technical principles...
April 3, 2024: World Neurosurgery
#11
JOURNAL ARTICLE
Alexander T Yahanda, Joyce Koueik, Laurie L Ackerman, P David Adelson, Gregory W Albert, Philipp R Aldana, Tord D Alden, Richard C E Anderson, David F Bauer, Tammy Bethel-Anderson, Karin Bierbrauer, Douglas L Brockmeyer, Joshua J Chern, Daniel E Couture, David J Daniels, Brian J Dlouhy, Susan R Durham, Richard G Ellenbogen, Ramin Eskandari, Herbert E Fuchs, Gerald A Grant, Patrick C Graupman, Stephanie Greene, Jeffrey P Greenfield, Naina L Gross, Daniel J Guillaume, Todd C Hankinson, Gregory G Heuer, Mark Iantosca, Bermans J Iskandar, Eric M Jackson, George I Jallo, James M Johnston, Bruce A Kaufman, Robert F Keating, Nickalus R Khan, Mark D Krieger, Jeffrey R Leonard, Cormac O Maher, Francesco T Mangano, Jonathan Martin, J Gordon McComb, Sean D McEvoy, Thanda Meehan, Arnold H Menezes, Michael S Muhlbauer, Brent R O'Neill, Greg Olavarria, John Ragheb, Nathan R Selden, Manish N Shah, Chevis N Shannon, Joshua S Shimony, Matthew D Smyth, Scellig S D Stone, Jennifer M Strahle, Mandeep S Tamber, James C Torner, Gerald F Tuite, Elizabeth C Tyler-Kabara, Scott D Wait, John C Wellons, William E Whitehead, Tae Sung Park, David D Limbrick, Raheel Ahmed
OBJECTIVE: Congenital anomalies of the atlanto-occipital articulation may be present in patients with Chiari malformation type I (CM-I). However, it is unclear how these anomalies affect the biomechanical stability of the craniovertebral junction (CVJ) and whether they are associated with an increased incidence of occipitocervical fusion (OCF) following posterior fossa decompression (PFD). The objective of this study was to determine the prevalence of condylar hypoplasia and atlas anomalies in children with CM-I and syringomyelia...
April 5, 2024: Journal of Neurosurgery. Pediatrics
#12
JOURNAL ARTICLE
Yiheng Tan, Ruchit V Patel, Zongming Wang, Yu Luo, Jinping Chen, Jie Luo, Wenli Chen, Zhigang Mao, Raymond Y Huang, Haijun Wang, Wenya Linda Bi, Shun Yao
OBJECTIVE: CT and MRI are synergistic in the information provided for neurosurgical planning. While obtaining both types of images lends unique data from each, doing so adds to cost and exposes patients to additional ionizing radiation after MRI has been performed. Cross-modal synthesis of high-resolution CT images from MRI sequences offers an appealing solution. The authors therefore sought to develop a deep learning conditional generative adversarial network (cGAN) which performs this synthesis...
April 5, 2024: Journal of Neurosurgery
#13
JOURNAL ARTICLE
Marco Previsdomini, Andreas Perren, Alessandro Chiesa, Mark Kaufmann, Hans Pargger, Roger Ludwig, Bernard Cerutti
BACKGROUND AND AIM: The coronavirus disease 2019 (COVID-19) outbreak deeply affected intensive care units (ICUs). We aimed to explore the main changes in the distribution and characteristics of Swiss ICU patients during the first two COVID-19 waves and to relate these figures with those of the preceding two years. METHODS: Using the national ICU registry, we conducted an exploratory study to assess the number of ICU admissions in Switzerland and their changes over time, characteristics of the admissions, the length of stay (LOS) and its trend over time, ICU mortality and changes in therapeutic nursing workload and hospital resources in 2020 and compare them with the average figures in 2018 and 2019...
February 5, 2024: Swiss Medical Weekly
#14
JOURNAL ARTICLE
Jie Chen, Xing Cheng, Jiashang Huang, Pengren Luo, Deqiang Mao, Haifeng Yang
BACKGROUND AND OBJECTIVES: To assess the feasibility, accuracy, and safety of 3-dimensional (3D) structure light robot-assisted frameless stereotactic brain biopsy. METHODS: Five consecutive patients (3 males, 2 females) were included in this study. The patients' clinical, imaging, and histological data were analyzed, and all patients received a 3D structure light robot-assisted frameless stereotactic brain biopsy. The raw and/or analyzed data of the study are available from the corresponding author...
April 4, 2024: Operative Neurosurgery (Hagerstown, Md.)
#15
JOURNAL ARTICLE
Brandon J Toll, Yagiz U Yolcu, Joel Z Passer, Andrew Y Yew, Subu N Magge, Zoher Ghogawala, Robert G Whitmore
INTRODUCTION: Depression and anxiety are common in patients undergoing spinal surgery and might negatively impact outcomes. This study investigates the possible effect of these diagnoses on patient reported outcomes following lumbar fusion. METHODS: Retrospective review of a registry containing prospectively collected data of lumbar fusion procedures at a single institution was performed from 5/23/2012 to 6/15/2022. Patients with a minimum of two year follow up were included...
April 2, 2024: World Neurosurgery
#16
JOURNAL ARTICLE
Nithish Jayakumar, Aasim Hagroo, Oliver Kennion, Damian Holliman
BACKGROUND: The National Neurosurgical Audit Programme (NNAP) publishes mortality outcomes of consultants and neurosurgical units across the United Kingdom. It is unclear how useful outcomes data is for patients and whether it influences their decision-making process. Our aim was to identify patients' perceptions and understanding of the NNAP data and its influences. MATERIALS AND METHODS: This single-centre study was conducted in the outpatient neurosurgery clinics at a regional neurosurgical centre...
April 2, 2024: British Journal of Neurosurgery
#17
JOURNAL ARTICLE
Tao Zhang, Yinghu Deng, Zhongshan Yuan, Minghao Zhou, Zhixiang Ma, Mingkai Zhang
BACKGROUND: Although many risk factors for residual pain following percutaneous vertebroplasty or kyphoplasty have been reported in many studies, research methods and cohorts differ greatly. A previous meta-analysis identified patient- and operation-specific risk factors for residual pain. This study aimed to examine the available data and identify significant risk factors for residual pain after percutaneous vertebroplasty or kyphoplasty. METHODS: PubMed, EMBASE, Web of Science, and the Chinese Wanfang Database were searched for relevant research in English and Chinese, and full-text publications including patients with and without residual pain were compared...
March 30, 2024: World Neurosurgery
#18
JOURNAL ARTICLE
Nathan A Shlobin, Gail Rosseau
INTRODUCTION: Global neurosurgery is a public health focus in neurosurgery that seeks to ensure safe, timely, and affordable neurosurgical care to all individuals worldwide. Although investigators have begun to explore the promise of AI for neurosurgery, its applicability to global neurosurgery has been largely hypothetical. We characterize opportunities and considerations for the incorporation of AI into global neurosurgery by synthesizing key themes yielded from a series of generative pre-trained transformers (GPTs), discuss important limitations of GPTs and cautions when using AI in neurosurgery, and develop a framework for the equitable incorporation of AI into global neurosurgery...
March 30, 2024: World Neurosurgery
#19
JOURNAL ARTICLE
Kyle C Wu, Jeffrey P Guenette, Raymond Y Huang, Ossama Al-Mefty, Ian F Dunn, Wenya Linda Bi
OBJECTIVE: This study describes an innovative optic nerve MRI protocol for better delineating optic nerve anatomy from neighboring pathology. METHODS: Twenty-two patients undergoing MRI examination of the optic nerve with the dedicated protocol were identified and included for analysis of imaging, surgical strategy, and outcomes. T2-weighted and fat-suppressed T1-weighted gadolinium-enhanced images were acquired perpendicular and parallel to the long axis of the optic nerve to achieve en face and in-line views along the course of the nerve...
April 2024: Neurosurgical Focus
#20
JOURNAL ARTICLE
Gardashkhan Karımzada, Demet Evleksiz Karımzada, Gökberk Erol, Beste Gülsuna, Pelin Kuzucu, Abuzer Güngör, Ahmet Murat Kutlay, Muammer Melih Şahin, Emrah Çeltikçi
OBJECTIVE: The aim of this study was to evaluate the efficacy and safety of transorbital neuroendoscopic surgery (TONES) in the management of sphenoid wing meningiomas (SWMs) with cavernous sinus and orbital invasion. METHODS: The authors conducted a retrospective review of 32 patients with SWMs treated at Gazi University using TONES from October 2019 to May 2023. The study includes clinical applications to elucidate the endoscopic transorbital approach. Surgical techniques focused on safe subtotal resection, aiming to minimize residual tumor volume for subsequent radiosurgery...
April 2024: Neurosurgical Focus
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