journal
https://read.qxmd.com/read/38719581/ictal-semiology-important-for-electrode-implantation-and-interpretation-of-stereoelectroencephalography
#1
JOURNAL ARTICLE
Katsuya Kobayashi, Akio Ikeda
Scalp video-electroencephalography (video-EEG) monitoring should be analyzed thoroughly to preoperatively evaluate stereoelectroencephalography (SEEG). Formulating the working hypotheses for the epileptogenic zone (EZ) considering "anatomo-electroclinical correlations" is the most crucial step, which determines the placement of SEEG electrodes. If these hypotheses are insufficient, precise EZ identification may not be achieved during SEEG recording.In ictal semiology analysis, temporal and spatial patterns with reference to ictal EEG changes are emphasized...
May 8, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38719580/which-theory-of-cerebrospinal-fluid-production-and-absorption-do-neurosurgeons-teach-to-medical-students-survey-from-medical-universities-in-japan-2022
#2
JOURNAL ARTICLE
Natsumi Fujii, Sadahiro Nomura, Hiroshi Izuma, Hideyuki Ishihara
Several new studies have been conducted on cerebrospinal fluid (CSF) dynamics. Our educational guidelines, the Model Core Curriculum for Medical University, recommend access to the best current information. However, we do not know whether or when to introduce changes to this concept.We surveyed which theory of CSF dynamics taught to students by neurosurgeons. The old theory is the bulk flow theory, and the new theory explains that CSF is produced from the choroid plexus and capillaries; CSF then pulsates and drains into the venous and lymphatic systems through newly discovered pathways...
May 8, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38719579/consideration-of-brain-ct-imaging-standard-for-mild-head-injuries
#3
JOURNAL ARTICLE
Takahiro Kumagawa, Ryo Otaki, Takeshi Maeda, Katsunori Shijo, Atsuo Yoshino
It has been reported that various clinical criteria indicate computed tomography (CT) examination for mild head injury (MHI). However, the decision to perform CT for MHI largely depends on the physician. Data on severe head injuries is available in sources such as the Japan Neurotrauma Data Bank, but only a few data has been collected on MHI. A total of 1688 patients with MHI (Glasgow Coma Scale 14 and 15) treated at our hospital from June 2017 to May 2019 were reviewed. CT was performed in 1237 patients (73...
May 8, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38719578/changes-in-intervertebral-disc-properties-after-intradiscal-injection-of-condoliase-for-painful-lumbar-disc-herniation
#4
JOURNAL ARTICLE
Tatsuya Ohtonari, Kyohei Sakai, Yosuke Furukawa, Yasushi Takeda
The detailed changes in disc properties after intradiscal injection of condoliase remain controversial. At 3 and 9 months after administration, radiographic changes in discs were investigated. A total of 41 patients (men, 25; median age, 46 years) who underwent regular follow-up magnetic resonance imaging at 3 and 9 months after administration without additional invasive therapy were retrospectively investigated. The intensity changes of the nucleus pulposus based on the Pfirrmann disc grading system, midsagittal disc height, and maximum protrusion length of herniation were assessed...
May 8, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38719577/immediate-effects-detailed-clinical-outcomes-and-prognostic-factors-of-chemonucleolysis-using-condoliase-for-lumbar-disc-herniation
#5
JOURNAL ARTICLE
Yushi Sakamoto, Seiichiro Naruo, Tomonori Ozaki, Shogo Tahata, Toru Fujimoto, Tatsuya Abe
Chemonucleolysis utilizing condoliase is a minimally invasive treatment for lumbar disc herniation (LDH) aimed at reducing intervertebral disc pressure and enhancing symptoms. In this study, lower limb pain was measured using the numeric rating scale (NRS) the day after treatment and 1 and 3 months after treatment. Prognostic factors were assessed, categorizing participants into an improvement group (I-group) for NRS lower limb pain scores of ≥3.5 and a non-improvement group (N-group) for scores of <3...
May 8, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38569917/three-dimensional-images-fusion-method-useful-for-preoperative-simulation-of-clipping-surgery-for-cerebral-aneurysms
#6
JOURNAL ARTICLE
Ryuta Yasuda, Naoto Kimura, Yoichi Miura, Hisashi Mizutani, Tetsushi Yago, Takahiro Miyazaki, Tomonori Ichikawa, Naoki Toma, Hidenori Suzuki
This study aimed to introduce a three-dimensional (3D) images fusion method for preoperative simulation of aneurysm clipping. Consecutive unruptured aneurysm cases treated with surgical clipping from March 2021 to October 2023 were included. In all cases, preoperative images of plain computed tomography (CT), CT angiography, magnetic resonance imaging (MRI) 3D fluid-attenuated inversion recovery, 3D heavily T2-weighted images, and 3D rotational angiography were acquired and transported into a commercial software (Ziostation2 Plus, Ziosoft, Inc...
April 4, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38569916/postoperative-airway-management-after-anterior-cervical-spine-surgery-retrospective-neurosurgical-multicenter-study
#7
JOURNAL ARTICLE
Yoshiki Fujikawa, Naokado Ikeda, Kosuke Sakai, Naoki Omura, Ryokichi Yagi, Ryo Hiramatsu, Masahiro Kameda, Naosuke Nonoguchi, Motomasa Furuse, Shinji Kawabata, Kunio Yokoyama, Masahiro Kawanishi, Takahiro Fujishiro, Yangtae Park, Hideki Tanabe, Toshihiro Takami, Masahiko Wanibuchi
Airway complications that occur after anterior cervical spine surgery pose a life-threatening risk, which encompasses complications including prolonged intubation, unplanned reintubation, and/or necessity of tracheostomy. The present study aimed to identify the surgical risks associated with postoperative airway complications in neurosurgical training institutes. A retrospective, multicenter, observational review of data from 365 patients, who underwent anterior cervical spine surgery between 2018 and 2022, at three such institutes was carried out...
April 4, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38432945/prevalence-and-severity-of-positional-posterior-plagiocephaly-and-positional-posterior-brachycephaly-in-children-and-adolescents-in-japan
#8
JOURNAL ARTICLE
Nobuyuki Akutsu, Junji Koyama, Atsufumi Kawamura, Takashi Sasayama
This study aimed to assess the prevalence, severity, and natural history of positional posterior plagiocephaly (PPP) and positional posterior brachycephaly in Japan. We conducted a cross-sectional study of pediatric patients, ranging from 0 to 15 years old, evaluated for head trauma with negative computed tomography (CT) findings. The cranial vault asymmetry index (CVAI) was calculated using CT images at the superior orbital rim. Asymmetry according to CVAI values was subcategorized as follows: mild (3.5%-7%), moderate (7%-12%), and severe (>12%)...
March 4, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38432944/differences-between-acute-embolic-and-atherosclerotic-middle-cerebral-artery-occlusion-in-multiphase-arterial-spin-labeling-imaging
#9
JOURNAL ARTICLE
Yasuhiro Ito, Taku Sugiyama, Shunsuke Terasaka, Hitoshi Matsuzawa, Kuniaki Harada, Naoki Nakayama, Masaki Ito, Katsuhiko Maruichi, Miki Fujimura
Arterial spin-labeling magnetic resonance imaging (ASL-MRI) is widely used for evaluating collateral development in patients with acute ischemic stroke (AIS). This study aimed to characterize the findings of multiphase ASL-MRI between embolic and atherosclerotic large vessel occlusion (LVO) to aid in the differential diagnosis. Among 982 patients with AIS, 44 who were diagnosed with acute, symptomatic, and unilateral occlusion of the horizontal segment of the middle cerebral artery (MCA) were selected and categorized into embolic stroke (ES) and atherosclerosis (AT) groups...
March 4, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38403719/differences-in-the-demographics-and-clinical-characteristics-between-the-ossification-of-the-posterior-longitudinal-ligament-and-ossification-of-the-ligamentum-flavum-in-patients-who-underwent-thoracic-spinal-surgery-for-compressive-myelopathy
#10
JOURNAL ARTICLE
Shinsuke Yoshida, Sho Nakamura, Kazuo Saita, Soichi Oya, Satoshi Ogihara
Ossification of the posterior longitudinal ligament (OPLL) and ossification of the ligamentum flavum (OLF) are related diseases associated with the ossification of spinal ligaments that can occasionally lead to thoracic myelopathy. We retrospectively analyzed the clinical data of 34 consecutive patients who underwent thoracic spinal surgeries for OPLL and/or OLF at our hospital between July 2010 and June 2022, and statistically compared data between patients with thoracic OPLL (TOPLL; n = 12) and those with thoracic OLF (TOLF; n = 22)...
February 26, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38403718/clinical-significance-of-carotid-endarterectomy-and-carotid-artery-stenting-in-older-patients-over-80
#11
JOURNAL ARTICLE
Daina Kashiwazaki, Emiko Hori, Naoki Akioka, Kunitaka Maruyama, Shusuke Yamamoto, Naoya Kuwayama, Kyo Noguchi, Satoshi Kuroda
As the average life expectancy increases, neurosurgeons are likely to encounter patients aged 80 years and above with carotid stenosis; however, whether old age affects clinical post-treatment outcomes of carotid endarterectomy (CEA) or carotid artery stenting (CAS) remains inconclusive. Thus, this study aimed to evaluate the outcomes following CEA or CAS in patients aged 80 years and above. This study included older over 80 years (n = 34) and younger patients (<80 years; n = 222) who underwent CEA or CAS between 2012 and 2022...
February 26, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38355130/statistical-analysis-of-the-factors-that-affect-postoperative-length-of-hospital-stay-after-unruptured-intracranial-aneurysm-treatment-in-japan-a-20-year-nationwide-multicenter-study
#12
JOURNAL ARTICLE
Yuhei Hoshikuma, Takeshi Shimizu, Shingo Toyota, Tomoaki Murakami, Takamune Achiha, Motohide Takahara, Kazuhiro Touhara, Tatsuya Hagioka, Maki Kobayashi, Haruhiko Kishima
Treatment strategies for unruptured intracranial aneurysms (UIAs) should be carefully considered with reference to rupture and complication rates. It is also important to minimize the length of hospital stay (LOS) and to ensure a high quality of medical care. In this study, we aim to clarify the factors that affect the LOS of patients treated for UIAs using the Inpatient Clinico-Occupational Database of the Rosai Hospital Group (ICOD-R). This was a nationwide-multicenter study based on ICOD-R data from 2000 to 2019...
February 15, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38355129/reconsideration-of-surgical-indication-for-prolactin-producing-pituitary-tumor-focusing-on-visual-impairment
#13
JOURNAL ARTICLE
Kosaku Amano, Yuichi Oda, Yasufumi Seki, Kaoru Yamashita, Kanako Bokuda, Atsuhiro Ichihara, Takakazu Kawamata
Prolactin-producing pituitary tumor (PRLoma) is the most prevalent functional pituitary tumor. If the tumor becomes large, vision can be impaired. In contrast to other pituitary tumors, cabergoline (CAB) is extremely effective for PRLoma and has become the first-line treatment. In this study, we examined our experience with the pharmacological and surgical management of PRLomas with visual impairment (VI) to determine whether VI could be a surgical indication. Further, we discussed the function of surgery in situations where the gold standard of PRLoma treatment was CAB administration...
February 15, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38355128/outcomes-and-prognostic-factors-of-magnetic-resonance-guided-focused-ultrasound-thalamotomy-for-essential-tremor-at-2-year-follow-up
#14
JOURNAL ARTICLE
Miki Hashida, Satoshi Maesawa, Sachiko Kato, Daisuke Nakatsubo, Takahiko Tsugawa, Jun Torii, Takafumi Tanei, Tomotaka Ishizaki, Manabu Mutoh, Yoshiki Ito, Takashi Tsuboi, Satomi Mizuno, Masashi Suzuki, Toshihiko Wakabayashi, Masahisa Katsuno, Ryuta Saito
Magnetic resonance-guided focused ultrasound (MRgFUS) thalamotomy is an effective treatment for essential tremor (ET). However, its long-term outcomes and prognostic factors remain unclear. This study aimed to retrospectively investigate 38 patients with ET who underwent MRgFUS thalamotomy and were followed up for >2 years. The improvement in tremor was evaluated using the Clinical Rating Scale for Tremor (CRST). Adverse events were documented, and correlations with factors, such as skull density ratio (SDR), maximum mean temperature (T-max), and lesion size, were examined...
February 15, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38355127/temporal-muscle-swelling-after-clipping-surgery-with-frontotemporal-craniotomy-is-associated-with-immediate-postcraniotomy-headache
#15
JOURNAL ARTICLE
Yoshiro Ito, Hisayuki Hosoo, Aiki Marushima, Yuji Matsumaru, Eiichi Ishikawa
Immediate postcraniotomy headache frequently occurs within the first 48 h after surgery. The mechanisms underlying immediate postcraniotomy headache are not yet fully understood, and effective treatments are not yet established. This study aimed to identify the factors associated with immediate postcraniotomy headache in patients who underwent clipping surgery with frontotemporal craniotomy and to examine the effects of these factors on postcraniotomy headache. A total of 51 patients were included in this study...
February 15, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38220166/usefulness-of-robotic-stereotactic-assistance-rosa-%C3%A2-device-for-stereoelectroencephalography-electrode-implantation-a-systematic-review-and-meta-analysis
#16
JOURNAL ARTICLE
Anukoon Kaewborisutsakul, Mikhail Chernov, Suguru Yokosako, Yuichi Kubota
The aim of this study was to systematically review and meta-analyze the efficiency and safety of using the Robotic Stereotactic Assistance (ROSA® ) device (Zimmer Biomet; Warsaw, IN, USA) for stereoelectroencephalography (SEEG) electrode implantation in patients with drug-resistant epilepsy. Based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, a literature search was carried out. Overall, 855 nonduplicate relevant articles were determined, and 15 of them were selected for analysis...
February 15, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38296551/the-usefulness-of-surgical-titanium-microclips-for-mucosal-repair-in-the-frontal-sinus-using-orbeye-a-technical-note
#17
JOURNAL ARTICLE
Motohide Takahara, Tomoaki Murakami, Shingo Toyota, Shuki Okuhara, Kazuhiro Touhara, Yuhei Hoshikuma, Shuhei Yamada, Takamune Achiha, Maki Kobayashi, Haruhiko Kishima
Bifrontal craniotomy frequently involves opening the frontal sinus and mucosal injury. We report a new technique for mucosal repair in the frontal sinus using surgical titanium microclips. Six consecutive patients who underwent bifrontal craniotomy with frontal sinus exposure and mucosal injury underwent mucosal repair using surgical titanium microclips between April 2019 and August 2022. In all cases, the frontal sinus mucosa was peeled from the inner walls of the frontal sinus to ensure sufficient mucosal margin for clipping using ORBEYE...
January 31, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38296550/factors-associated-with-early-and-late-seizure-related-to-aneurysmal-subarachnoid-hemorrhage
#18
JOURNAL ARTICLE
Shota Nakashima, Hiroki Nishibayashi, Rie Yako, Masamichi Ishii, Naotsugu Toki, Masaki Tomobuchi, Toshihito Nakai, Hiromi Yamoto, Yoko Nakanishi, Naoyuki Nakao
Post-stroke epilepsy may occur after aneurysmal subarachnoid hemorrhage (aSAH). Both early and late seizures could cause severe neurocognitive deficits if administration of appropriate antiseizure medication is delayed. Therefore, it is important to elucidate the risk factors for early and late seizures, which could be shared with medical teams to promptly manage seizures. There are aspects of both hemorrhage and ischemia in aSAH, and thus, numerous risk factors are considered for early and late seizures. We examined factors associated with aSAH-related early and late seizures...
January 31, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38267057/characteristics-of-microrna-expression-depending-on-the-presence-or-absence-of-meningioma-in-patients-with-neurofibromatosis-type-2-a-secondary-analysis
#19
JOURNAL ARTICLE
Takeshi Imura, Takafumi Mitsuhara, Nobutaka Horie
Meningioma is the second most frequent tumor in patients with neurofibromatosis type 2 (NF2). The presence of meningioma is believed to be a negative prognostic marker in these patients. However, the molecular mechanisms involved in the tumorigenesis of NF2-associated meningioma are not well characterized. Epigenetic regulation, including microRNAs (miRNAs), may be involved in the development of different tumor types in patients with NF2. The objective of this study is to explore the different characteristics of serum miRNA expression depending on the presence or absence of meningioma in patients with NF2...
January 24, 2024: Neurologia Medico-chirurgica
https://read.qxmd.com/read/38267056/is-phantom-limb-awareness-necessary-for-the-treatment-of-phantom-limb-pain
#20
JOURNAL ARTICLE
Huixiang Yang, Takufumi Yanagisawa
Phantom limb pain is attributed to abnormal sensorimotor cortical representations. Various feedback treatments have been applied to induce the reorganization of the sensorimotor cortical representations to reduce pain. We developed a training protocol using a brain-computer interface (BCI) to induce plastic changes in the sensorimotor cortical representation of phantom hand movements and demonstrated that BCI training effectively reduces phantom limb pain. By comparing the induced cortical representation and pain, the mechanisms worsening the pain have been attributed to the residual phantom hand representation...
January 24, 2024: Neurologia Medico-chirurgica
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