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Yokota K, Sakai H, Kawano O, Morishita Y, Masuda M, Hayashi T, Kubota K, Ideta R, Ariji Y, Koga R, Murai S, Ifuku R, Uemura M, Kishimoto J, Watanabe H, Nakashima Y, Maeda T. Changing trends in traumatic spinal cord injury in an aging society: Epidemiology of 1152 cases over 15 years from a single center in Japan. PLoS One 2024; 19:e0298836. [PMID: 38753862 PMCID: PMC11098516 DOI: 10.1371/journal.pone.0298836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 01/30/2024] [Indexed: 05/18/2024] Open
Abstract
Traumatic spinal cord injury (TSCI) causes an insult to the central nervous system, often resulting in devastating temporary or permanent neurological impairment and disability, which places a substantial financial burden on the health-care system. This study aimed to clarify the up-to-date epidemiology and demographics of patients with TSCI treated at the largest SCI center in Japan. Data on all patients admitted to the Spinal Injuries Center with TSCI between May 2005 and December 2021 were prospectively collected using a customized, locally designed SCI database named the Japan Single Center Study for Spinal Cord Injury Database (JSSCI-DB). A total of 1152 patients were identified from the database. The study period was divided into the four- or five-year periods of 2005-2009, 2010-2013, 2014-2017, and 2018-2021 to facilitate the observation of general trends over time. Our results revealed a statistically significant increasing trend in age at injury. Since 2014, the average age of injury has increased to exceed 60 years. The most frequent spinal level affected by the injury was high cervical (C1-C4: 45.8%), followed by low cervical (C5-C8: 26.4%). Incomplete tetraplegia was the most common cause or etiology category of TSCI, accounting for 48.4% of cases. As the number of injuries among the elderly has increased, the injury mechanisms have shifted from high-fall trauma and traffic accidents to falls on level surfaces and downstairs. Incomplete tetraplegia in the elderly due to upper cervical TSCI has also increased over time. The percentage of injured patients with an etiology linked to alcohol use ranged from 13.2% (2005-2008) to 19% (2014-2017). Given that Japan has one of the highest aging populations in the world, epidemiological studies in this country will be very helpful in determining health insurance and medical costs and deciding strategies for the prevention and treatment of TSCI in future aging populations worldwide.
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Affiliation(s)
- Kazuya Yokota
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Higashiku, Fukuoka, Japan
| | - Hiroaki Sakai
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Osamu Kawano
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Yuichiro Morishita
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Muneaki Masuda
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Tetsuo Hayashi
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Kensuke Kubota
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Ryosuke Ideta
- Department of Rehabilitation Medicine, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Yuto Ariji
- Department of Rehabilitation Medicine, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Ryuichiro Koga
- Department of Rehabilitation Medicine, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Satoshi Murai
- Department of Rehabilitation Medicine, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Ryusei Ifuku
- Department of Rehabilitation Medicine, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Masatoshi Uemura
- Department of Rehabilitation Medicine, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Junji Kishimoto
- Center for Clinical and Translational Research, Graduate School of Medical Sciences, Kyushu University, Higashiku, Fukuoka, Japan
| | - Hiroko Watanabe
- Center for Clinical and Translational Research, Graduate School of Medical Sciences, Kyushu University, Higashiku, Fukuoka, Japan
| | - Yasuharu Nakashima
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Higashiku, Fukuoka, Japan
| | - Takeshi Maeda
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
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Ariji Y, Hayashi T, Ideta R, Koga R, Murai S, Naka T, Ifuku R, Towatari F, Sakai H, Kurata H, Maeda T. Identification of a reliable sacral-sparing examination to assess the ASIA impairment scale in patients with traumatic spinal cord injury. J Spinal Cord Med 2024; 47:286-292. [PMID: 35352975 PMCID: PMC10885764 DOI: 10.1080/10790268.2022.2047548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
OBJECTIVES We evaluated the time course of the American Spinal Cord Injury Association (ASIA) impairment scale (AIS) for up to three months in participants within 72 h after traumatic spinal cord injury (TSCI) with complete paralysis. We aimed to determine the most useful sacral-sparing examination (deep anal pressure [DAP], voluntary anal contraction [VAC], S4-5 light touch [LT], or pin prick [PP] sensation) in determining AIS grades. DESIGN Retrospective cohort study. SETTING Spinal Injuries Center, Fukuoka, Japan. PARTICIPANTS Among 668 TSCI participants registered in the Japan Single Center study for Spinal Cord Injury Database (JSSCI-DB) between January 2012 and May 2020, we extracted the data of 80 patients with AIS grade A within 72 h after injury and neurological level of injury (NLI) at T12 or higher. INTERVENTIONS None. OUTCOME MEASURES The sacral-sparing examination at the time of the change to incomplete paralysis was compared to the AIS determination using a standard algorithm and with each assessment including the VAC, DAP, S4-5LT, and S4-5PP examinations at the time of AIS functional change. Agreement among assessments was evaluated using weighted kappa coefficients. The relationship was evaluated using Spearman's rank correlation coefficients. RESULTS Fifteen participants (18.8%) improved to incomplete paralysis (AIS B to D) within three months after injury. The single assessment among the sacral-sparing examinations with the highest agreement and strongest correlation with AIS determination was the S4-5LT examination (k = 0.89, P < 0.01, r = 0.84, P < 0.01). CONCLUSIONS The S4-5LT examination is key in determining complete or incomplete paralysis due to its high discriminatory power.
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Affiliation(s)
- Yuto Ariji
- Department of Rehabilitation Medicine, Japan Organization of Occupational Health and Safety, Spinal Injuries Center, Fukuoka, Japan
| | - Tetsuo Hayashi
- Department of Rehabilitation Medicine, Japan Organization of Occupational Health and Safety, Spinal Injuries Center, Fukuoka, Japan
- Department of Orthopedic Surgery, Japan Organization of Occupational Health and Safety, Spinal Injuries Center, Fukuoka, Japan
| | - Ryosuke Ideta
- Department of Rehabilitation Medicine, Japan Organization of Occupational Health and Safety, Spinal Injuries Center, Fukuoka, Japan
| | - Ryuichiro Koga
- Department of Rehabilitation Medicine, Japan Organization of Occupational Health and Safety, Spinal Injuries Center, Fukuoka, Japan
| | - Satoshi Murai
- Department of Rehabilitation Medicine, Japan Organization of Occupational Health and Safety, Spinal Injuries Center, Fukuoka, Japan
| | - Tomoki Naka
- Department of Rehabilitation Medicine, Japan Organization of Occupational Health and Safety, Spinal Injuries Center, Fukuoka, Japan
| | - Ryusei Ifuku
- Department of Rehabilitation Medicine, Japan Organization of Occupational Health and Safety, Spinal Injuries Center, Fukuoka, Japan
| | - Fumihiro Towatari
- Department of Rehabilitation Medicine, Japan Organization of Occupational Health and Safety, Spinal Injuries Center, Fukuoka, Japan
| | - Hiroaki Sakai
- Department of Orthopedic Surgery, Japan Organization of Occupational Health and Safety, Spinal Injuries Center, Fukuoka, Japan
| | - Hiroyuki Kurata
- Department of Bioscience and Bioinformatics, Kyushu Institute of Technology - Iizuka Campus, Fukuoka, Japan
| | - Takeshi Maeda
- Department of Orthopedic Surgery, Japan Organization of Occupational Health and Safety, Spinal Injuries Center, Fukuoka, Japan
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Kawakami M, Murai S, Kusaka N, Baba F, Inoue Y, Miyake H, Shinji Y, Itami H, Otsuka S, Nishiura T, Ogihara K. Non-aneurysmal subarachnoid hemorrhage in aplastic or twig-like middle cerebral artery: A case report and literature review. J Stroke Cerebrovasc Dis 2024; 33:107582. [PMID: 38237811 DOI: 10.1016/j.jstrokecerebrovasdis.2024.107582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024] Open
Abstract
BACKGROUND Aplastic or twig-like middle cerebral artery (Ap/T-MCA) is a rare vascular anomaly that can cause hemorrhagic and ischemic stroke. Ap/T-MCA can induce aneurysms due to the fragility of the vessel wall, consequently leading to subarachnoid hemorrhage. Herein, we report a case of Ap/T-MCA with subarachnoid hemorrhage without an aneurysm. CASE PRESENTATION A 67-year-old man presented to our hospital with a sudden onset of headache. Computed tomography of the head revealed subarachnoid hemorrhage (SAH) in the left Sylvian fissure; however, no aneurysm was observed on digital subtraction angiography. Following conservative treatment, follow-up imaging showed no aneurysm or no recurrent stroke. CONCLUSION Non-aneurysmal SAH is a possible indication of vessel wall fragility in Ap/T-MCA; however, a standardized treatment strategy for this condition remains to be established.
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Affiliation(s)
- Masato Kawakami
- Department of Neurological Surgery, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences.
| | | | - Noboru Kusaka
- Department of Neurological Surgery, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences
| | - Fukiko Baba
- Department of Neurosurgery, Iwakuni Clinical Center.
| | - Yohei Inoue
- Department of Neurological Surgery, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences
| | - Hayato Miyake
- Department of Neurological Surgery, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences.
| | - Yukei Shinji
- Department of Neurosurgery, Japanese Red Cross Society Himeji Hospital
| | | | - Shinji Otsuka
- Department of Neurosurgery, Iwakuni Clinical Center.
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Takasugi Y, Hishikawa T, Shimizu T, Murai S, Haruma J, Hiramatsu M, Tokunaga K, Takeda Y, Sugiu K, Morimatsu H, Date I. Power suppression in EEG after the onset of SAH is a significant marker of early brain injury in rat models. Sci Rep 2024; 14:2277. [PMID: 38280926 PMCID: PMC10821948 DOI: 10.1038/s41598-024-52527-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 01/19/2024] [Indexed: 01/29/2024] Open
Abstract
We analyzed the correlation between the duration of electroencephalogram (EEG) recovery and histological outcome in rats in the acute stage of subarachnoid hemorrhage (SAH) to find a new predictor of the subsequent outcome. SAH was induced in eight rats by cisternal blood injection, and the duration of cortical depolarization was measured. EEG power spectrums were given by time frequency analysis, and histology was evaluated. The appropriate frequency band and recovery percentage of EEG (defined as EEG recovery time) to predict the neuronal damage were determined from 25 patterns (5 bands × 5 recovery rates) of receiver operating characteristic (ROC) curves. Probit regression curves were depicted to evaluate the relationships between neuronal injury and duration of depolarization and EEG recovery. The optimal values of the EEG band and the EEG recovery time to predict neuronal damage were 10-15 Hz and 40%, respectively (area under the curve [AUC]: 0.97). There was a close relationship between the percentage of damaged neurons and the duration of depolarization or EEG recovery time. These results suggest that EEG recovery time, under the above frequency band and recovery rate, may be a novel marker to predict the outcome after SAH.
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Affiliation(s)
- Yuji Takasugi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Neurosurgery, Okayama City Hospital, Okayama, Japan
| | - Tomohito Hishikawa
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Tomohisa Shimizu
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Satoshi Murai
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Jun Haruma
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Masafumi Hiramatsu
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Koji Tokunaga
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Neurosurgery, Okayama City Hospital, Okayama, Japan
| | - Yoshimasa Takeda
- Department of Anesthesiology, Faculty of Medicine, Toho University, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan.
| | - Kenji Sugiu
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hiroshi Morimatsu
- Department of Anesthesiology and Resuscitology, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Isao Date
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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Yokota K, Kawano O, Sakai H, Morishita Y, Masuda M, Hayashi T, Kubota K, Ideta R, Ariji Y, Koga R, Murai S, Ifuku R, Uemura M, Katoh H, Nakashima Y, Maeda T. Predicting the Progression of Spasticity in the Early Phase of Spinal Cord Injury: A Prospective Cohort Study. J Neurotrauma 2023. [PMID: 37772699 DOI: 10.1089/neu.2023.0191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023] Open
Abstract
Spasticity-defined as involuntary movements caused by insult to upper motor neurons after spinal cord injury (SCI)-interferes with patients' activities of daily living. Spasticity is generally identified and managed in the chronic phase of SCI, but few reports have examined the onset of spasticity after injury. The purpose of this study is to elucidate serial changes in spasticity after SCI and clarify the timing of severe spasticity. We prospectively examined individuals with acute traumatic SCI admitted within two weeks after injury. Severity of spasticity was evaluated using the Modified Ashworth Scale (MAS) at 2, 4, 6, and 8 weeks, followed by 3, 4, 5, and 6 months after injury. After completing evaluation of the cohort, the patients were divided into two groups: a spasticity group with MAS scores ≥3 (marked increase in muscle tone through most of the range of motion (ROM)) in at least one joint movement within 6 months of injury and a control group with MAS scores ≤2 in all joint movements throughout the 6 months after injury. Neurological findings such as the American Spinal Injury Association (ASIA) Impairment Scale grades and ASIA motor scores were also assessed at all time points, and the correlations between the onset of spasticity, severity of spasticity, and neurological findings were analyzed. There were 175 patients with traumatic SCI who were assessed consecutively for 6 months after injury. The MAS scores of the group significantly increased over time until 4 months after injury. The spasticity group had significantly higher MAS scores compared with the control group as early as 2 weeks post-injury. We found that the patients with earlier onset of spasticity had higher final MAS scores. No correlation was found between the ASIA Impairment Scale grade and the onset of spasticity. Our results reveal that the development of severe spasticity may be predictable from as early as 2 weeks after SCI, suggesting that early therapeutic intervention to mitigate problematic spasticity may enhance the benefits of post-injury rehabilitation.
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Affiliation(s)
- Kazuya Yokota
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Higashiku, Fukuoka, Japan
| | - Osamu Kawano
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Hiroaki Sakai
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Yuichiro Morishita
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Muneaki Masuda
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Tetsuo Hayashi
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Kensuke Kubota
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Ryosuke Ideta
- Department of Rehabilitation Medicine, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Yuto Ariji
- Department of Rehabilitation Medicine, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Ryuichiro Koga
- Department of Rehabilitation Medicine, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Satoshi Murai
- Department of Rehabilitation Medicine, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Ryusei Ifuku
- Department of Rehabilitation Medicine, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Masatoshi Uemura
- Department of Rehabilitation Medicine, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
| | - Hiroyuki Katoh
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Shimokasuya, Isehara, Kanagawa, Japan
| | - Yasuharu Nakashima
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Higashiku, Fukuoka, Japan
| | - Takeshi Maeda
- Department of Orthopaedic Surgery, Japan Labor Health and Welfare Organization Spinal Injuries Center, Iizuka, Fukuoka, Japan
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Ebisudani Y, Sugiu K, Murai S, Haruma J, Hiramatsu M, Hishikawa T, Date I. Questionnaire Survey of Neurointerventional Simulation Training in the Japanese Society for Neuroendovascular Therapy. J Neuroendovasc Ther 2023; 17:181-187. [PMID: 37731468 PMCID: PMC10508991 DOI: 10.5797/jnet.ra.2022-0062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 06/29/2023] [Indexed: 09/22/2023]
Abstract
Objective Simulation training has focused on education and practical training. However, the adoption rate of neurointerventional simulation training in Japan is unknown. Therefore, we sent a questionnaire survey form to consulting specialists from the Japanese Society for Neuroendovascular Therapy (JSNET) to clarify the actual simulation training situation and compare the differences between university hospitals and general hospitals in Japan. Methods The questionnaire survey was conducted in 243 neurosurgical training facilities that had JSNET consulting specialists between May 31, 2021 and July 31, 2021. The questionnaire survey forms were distributed by Google Forms. Results A total of 162 facilities responded to the survey (response rate: 66.7%; 35.2% from university hospitals and 64.8% from general hospitals). The adoption rate for simulation training was 53.7%, and it was significantly higher in the university hospitals than in the general hospitals (64.9% vs. 47.6%, p = 0.035). On the simulation effectiveness survey, more than 80% of respondents answered that the simulation training was a useful tool for upskill training. The open-ended question on interventional simulation training showed that there are limiting factors such as financial constraints. Additionally, respondents expressed a desire for a standard neurointerventional simulation training and education program. Conclusion The adoption rate for simulation training was 53.7% in the training facilities of JSNET, and it was higher in the university hospitals than in the general hospitals. Most of the respondents answered that simulation training is an effective tool to improve neurointerventional skills. They also requested the establishment of simulation training programs and simulation tools.
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Affiliation(s)
- Yuki Ebisudani
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Kenji Sugiu
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Satoshi Murai
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Jun Haruma
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Masafumi Hiramatsu
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Tomohito Hishikawa
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Isao Date
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
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Fushimi M, Takeda Y, Mizoue R, Sato S, Kawase H, Takasugi Y, Murai S, Morimatsu H. Cardiopulmonary Resuscitation May Not Stop Glutamate Release in the Cerebral Cortex. J Neurosurg Anesthesiol 2023; 35:341-346. [PMID: 35275099 DOI: 10.1097/ana.0000000000000838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 01/28/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Cardiopulmonary resuscitation (CPR) may not be sufficient to halt the progression of brain damage. Using extracellular glutamate concentration as a marker for neuronal damage, we quantitatively evaluated the degree of brain damage during resuscitation without return of spontaneous circulation. MATERIALS AND METHODS Extracellular cerebral glutamate concentration was measured with a microdialysis probe every 2 minutes for 40 minutes after electrical stimulation-induced cardiac arrest without return of spontaneous circulation in Sprague-Dawley rats. The rats were divided into 3 groups (7 per group) according to the treatment received during the 40 minutes observation period: mechanical ventilation without chest compression (group V); mechanical ventilation and chest compression (group VC) and; ventilation, chest compression and brain hypothermia (group VCH). Chest compression (20 min) and hypothermia (40 min) were initiated 6 minutes after the onset of cardiac arrest. RESULTS Glutamate concentration increased in all groups after cardiac arrest. Although after the onset of chest compression, glutamate concentration showed a significant difference at 2 min and reached the maximum at 6 min (VC group; 284±48 μmol/L vs. V group 398±126 μmol/L, P =0.003), there was no difference toward the end of chest compression (513±61 μmol/L vs. 588±103 μmol/L, P =0.051). In the VCH group, the initial increase in glutamate concentration was suddenly suppressed 2 minutes after the onset of brain hypothermia. CONCLUSIONS CPR alone reduced the progression of brain damage for a limited period but CPR in combination with brain cooling strongly suppressed increases in glutamate levels.
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Affiliation(s)
| | - Yoshimasa Takeda
- Department of Anesthesiology, Faculty of Medicine, Toho University, Tokyo, Japan
| | | | | | | | - Yuji Takasugi
- Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama
| | - Satoshi Murai
- Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama
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Kakimoto T, Murai S, Kusaka N, Baba F, Inoue Y, Miyake H, Kawakami M, Shinji Y, Itami H, Otsuka S, Nishiura T, Kawamoto K, Yamamoto T, Kimura N, Ogihara K. A Case of Tracheo-innominate Artery Fistula after Tracheostomy Successfully Treated with a Covered Stent. NMC Case Rep J 2023; 10:21-25. [PMID: 36937500 PMCID: PMC10017121 DOI: 10.2176/jns-nmc.2022-0250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 12/06/2022] [Indexed: 02/24/2023] Open
Abstract
A 78-year-old man underwent a tracheostomy after embolization for a dural arteriovenous fistula. Seventy days after tracheostomy, arterial bleeding appeared through the tracheal stoma. The bleeding stopped spontaneously. However, two days later, arterial bleeding reappeared, and he was diagnosed with a tracheo-innominate artery fistula (TIF). He then underwent urgent endovascular covered stent placement. After the procedure, there was no bleeding. TIF can be a fatal complication after tracheostomy and it is generally treated with open chest surgery. However, a successful endovascular treatment for TIF has recently been reported and may yield better results.
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Affiliation(s)
- Takayuki Kakimoto
- Department of Neurosurgery, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
| | - Satoshi Murai
- Department of Neurosurgery, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
| | - Noboru Kusaka
- Department of Neurosurgery, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
| | - Fukiko Baba
- Department of Neurosurgery, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
| | - Yohei Inoue
- Department of Neurosurgery, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
| | - Hayato Miyake
- Department of Neurosurgery, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
| | - Masato Kawakami
- Department of Neurosurgery, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
| | - Yukei Shinji
- Department of Neurosurgery, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
| | - Hisakazu Itami
- Department of Neurosurgery, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
| | - Shinji Otsuka
- Department of Neurosurgery, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
| | - Tsukasa Nishiura
- Department of Neurosurgery, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
| | - Kenji Kawamoto
- Department of Cardiology, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
| | - Tsuyoshi Yamamoto
- Department of Cardiovascular Surgery, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
| | - Nobuhiko Kimura
- Department of Otolaryngology, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
| | - Kotaro Ogihara
- Department of Neurosurgery, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Yamaguchi, Japan
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Kuo MYJ, Murai S, Kawahara R, Nobuhara S, Nishino K. Surface Normals and Shape From Water. IEEE Trans Pattern Anal Mach Intell 2022; 44:9150-9162. [PMID: 34673484 DOI: 10.1109/tpami.2021.3121963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this paper, we introduce a novel method for reconstructing surface normals and depth of dynamic objects in water. Past shape recovery methods have leveraged various visual cues for estimating shape (e.g., depth) or surface normals. Methods that estimate both compute one from the other. We show that these two geometric surface properties can be simultaneously recovered for each pixel when the object is observed underwater. Our key idea is to leverage multi-wavelength near-infrared light absorption along different underwater light paths in conjunction with surface shading. Our method can handle both Lambertian and non-Lambertian surfaces. We derive a principled theory for this surface normals and shape from water method and a practical calibration method for determining its imaging parameters values. By construction, the method can be implemented as a one-shot imaging system. We prototype both an off-line and a video-rate imaging system and demonstrate the effectiveness of the method on a number of real-world static and dynamic objects. The results show that the method can recover intricate surface features that are otherwise inaccessible.
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Yabuno S, Yasuhara T, Murai S, Yumoto T, Naito H, Nakao A, Date I. Predictive Factors of Return Home and Return to Work for Intensive Care Unit Survivors after Traumatic Brain Injury with a Follow-up Period of 2 Years. Neurol Med Chir (Tokyo) 2022; 62:465-474. [PMID: 36130904 PMCID: PMC9637400 DOI: 10.2176/jns-nmc.2022-0149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Intensive care unit (ICU) survivors after traumatic brain injury (TBI) frequently have serious disabilities with subsequent difficulty in reintegration into society. We aimed to investigate outcomes for ICU survivors after moderate to severe TBI (msTBI) and to identify predictive factors of return home (RH) and return to work (RTW). This single-center retrospective cohort study was conducted on all trauma patients admitted to the emergency ICU of our hospital between 2013 and 2017. Of these patients, adult (age ≥ 18 years) msTBI patients with head Abbreviated Injury Scale ≥ 3 were extracted. We performed univariate/multivariate logistic regression analyses to explore the predictive factors of RH and RTW. Among a total of 146 ICU survivors after msTBI, 107 were included (median follow-up period: 26 months). The RH and RTW rates were 78% and 35%, respectively. Multivariate analyses revealed that the predictive factors of RH were age < 65 years (P < 0.001), HR < 76 bpm (P = 0.015), platelet count ≥ 19 × 104/μL (P = 0.0037), D-dimer < 26 μg/mL (P = 0.034), and Glasgow Coma Scale (GCS) score > 8 (P = 0.0015). Similarly, the predictive factors of RTW were age < 65 years (P < 0.001) and GCS score > 8 (P = 0.0039). This study revealed that “age” and “GCS score on admission” affected RH and RTW for ICU survivors after msTBI.
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Affiliation(s)
- Satoru Yabuno
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences
| | - Takao Yasuhara
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences
| | - Satoshi Murai
- Department of Neurosurgery, National Hospital Organization Iwakuni Clinical Center
| | - Tetsuya Yumoto
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences
| | - Hiromichi Naito
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences
| | - Atsunori Nakao
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences
| | - Isao Date
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences
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Hiramatsu M, Ishibashi R, Suzuki E, Miyazaki Y, Murai S, Takai H, Takasugi Y, Yamaoka Y, Nishi K, Takahashi Y, Haruma J, Hishikawa T, Yasuhara T, Chin M, Matsubara S, Uno M, Tokunaga K, Sugiu K, Date I. Incidence and clinical characteristics of spinal arteriovenous shunts: hospital-based surveillance in Okayama, Japan. J Neurosurg Spine 2021; 36:670-677. [PMID: 34715647 DOI: 10.3171/2021.7.spine21233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 07/01/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE There have been no accurate surveillance data regarding the incidence rate of spinal arteriovenous shunts (SAVSs). Here, the authors investigate the epidemiology and clinical characteristics of SAVSs. METHODS The authors conducted multicenter hospital-based surveillance as an inventory survey at 8 core hospitals in Okayama Prefecture between April 1, 2009, and March 31, 2019. Consecutive patients who lived in Okayama and were diagnosed with SAVSs on angiographic studies were enrolled. The clinical characteristics and the incidence rates of each form of SAVS and the differences between SAVSs at different spinal levels were analyzed. RESULTS The authors identified a total of 45 patients with SAVSs, including 2 cases of spinal arteriovenous malformation, 5 cases of perimedullary arteriovenous fistula (AVF), 31 cases of spinal dural AVF (SDAVF), and 7 cases of spinal epidural AVF (SEAVF). The crude incidence rate was 0.234 per 100,000 person-years for all SAVSs including those at the craniocervical junction (CCJ) level. The incidence rate of SDAVF and SEAVF combined increased with advancing age in men only. In a comparative analysis between upper and lower spinal SDAVF/SEAVF, hemorrhage occurred in 7/14 cases (50%) at the CCJ/cervical level and in 0/24 cases (0%) at the thoracolumbar level (p = 0.0003). Venous congestion appeared in 1/14 cases (7%) at the CCJ/cervical level and in 23/24 cases (96%) at the thoracolumbar level (p < 0.0001). CONCLUSIONS The authors reported detailed incidence rates of SAVSs in Japan. There were some differences in clinical characteristics of SAVSs in the upper spinal levels and those in the lower spinal levels.
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Affiliation(s)
- Masafumi Hiramatsu
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama
| | - Ryota Ishibashi
- 2Department of Neurosurgery, Kurashiki Central Hospital, Kurashiki
| | - Etsuji Suzuki
- 3Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama
| | - Yuko Miyazaki
- 4Department of Neurosurgery, Kawasaki Medical School, Kurashiki; and
| | - Satoshi Murai
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama
| | - Hiroki Takai
- 4Department of Neurosurgery, Kawasaki Medical School, Kurashiki; and
| | - Yuji Takasugi
- 5Department of Neurosurgery, Okayama City Hospital, Okayama City General Medical Center, Okayama, Japan
| | - Yoko Yamaoka
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama
| | - Kazuhiko Nishi
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama
| | - Yu Takahashi
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama
| | - Jun Haruma
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama
| | - Tomohito Hishikawa
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama
| | - Takao Yasuhara
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama
| | - Masaki Chin
- 2Department of Neurosurgery, Kurashiki Central Hospital, Kurashiki
| | - Shunji Matsubara
- 4Department of Neurosurgery, Kawasaki Medical School, Kurashiki; and
| | - Masaaki Uno
- 4Department of Neurosurgery, Kawasaki Medical School, Kurashiki; and
| | - Koji Tokunaga
- 5Department of Neurosurgery, Okayama City Hospital, Okayama City General Medical Center, Okayama, Japan
| | - Kenji Sugiu
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama
| | - Isao Date
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama
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Umakoshi M, Yasuhara T, Morimoto J, Murai S, Sasaki T, Kameda M, Kin K, Miyoshi Y, Date I. Spinal Surgery after Bilateral Subthalamic Stimulation for Patients with Parkinson's Disease: A Retrospective Outcome Analysis of Pain and Functional Control. Neurol Med Chir (Tokyo) 2021; 61:607-618. [PMID: 34408107 PMCID: PMC8531877 DOI: 10.2176/nmc.oa.2021-0094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Parkinson’s disease (PD) patients often suffer from spinal diseases requiring surgeries, although the risk of complications is high. There are few reports on outcomes after spinal surgery for PD patients with deep brain stimulation (DBS). The objective of this study was to explore the data on spinal surgery for PD patients with precedent DBS. We evaluated 24 consecutive PD patients with 28 spinal surgeries from 2007 to 2017 who received at least a 2-year follow-up. The characteristics and outcomes of PD patients after spinal surgery were compared to those of 156 non-PD patients with degenerative spinal diseases treated in 2013–2017. Then, the characteristics, outcomes, and spinal alignment of PD patients receiving DBS were analyzed in degenerative spinal/lumbar diseases. The mean age at the time of spinal surgery was 68 years. The Hoehn and Yahr score regarding PD was stage 1 for 8 patients, stage 2 for 2 patients, stage 3 for 8 patients, stage 4 for 10 patients, and stage 5 for 0 patient. The median preoperative L-DOPA equivalent daily dose was 410 mg. Thirteen patients (46%) received precedent subthalamic nucleus (STN) DBS. Lumbar lesions with pain were common, and operation and anesthesia times were long in PD patients. Pain and functional improvement of PD patients persisted for 2 years after surgery with a higher complication rate than for non-PD patients. PD patients with STN DBS maintained better lumbar lordosis for 2 years after spinal surgery. STN DBS significantly maintained spinal alignment with subsequent pain and functional amelioration 2 years after surgery. The outcomes of spinal surgery for PD patients might be favorably affected by thorough treatment for PD including DBS.
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Affiliation(s)
- Michiari Umakoshi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
| | - Takao Yasuhara
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
| | - Jun Morimoto
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
| | - Satoshi Murai
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
| | - Tatsuya Sasaki
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
| | - Masahiro Kameda
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
| | - Kyohei Kin
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
| | - Yasuyuki Miyoshi
- Department of Neurosurgery, Kawasaki Medical School General Medical Center
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
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Hishikawa T, Murai S, Hiramatsu M, Haruma J, Nishi K, Ebisudani Y, Sato Y, Yasuhara T, Sugiu K, Shimizu K, Kobayashi M, Nakagawa K, Kimura-Ono A, Hotta K, Morimatsu H, Date I. An Evaluation of the Safety and Feasibility of Adenosine-assisted Clipping Surgery for Unruptured Cerebral Aneurysms: Study Protocol. Neurol Med Chir (Tokyo) 2021; 61:393-396. [PMID: 34024879 PMCID: PMC8280325 DOI: 10.2176/nmc.st.2021-0018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
The effectiveness of adenosine-induced flow arrest in surgical clipping for the cerebral aneurysms with difficulties in temporary clip placement to the proximal main trunk has been reported. This is the first clinical trial to evaluate the safety and feasibility of adenosine-assisted clipping surgery for unruptured cerebral aneurysms (UCAs) in Japan. The inclusion criteria are as follows: patients over 20 years old, patients who agree to be enrolled in this study after providing informed consent, patients who undergo clipping surgery for UCA in our institute, and patients in whom the surgeons (T.H. or I.D.) judge that decompression of the aneurysm is effective. The primary endpoint is a modified Rankin Scale (mRS) score 30 days after surgery. We plan to enroll 10 patients in this study. The original protocol of adenosine administration was established in this trial. Herein, we present the study protocol.
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Affiliation(s)
- Tomohito Hishikawa
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Satoshi Murai
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Masafumi Hiramatsu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Jun Haruma
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Kazuhiko Nishi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Yuki Ebisudani
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Yu Sato
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Takao Yasuhara
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Kenji Sugiu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Kazuyoshi Shimizu
- Department of Anesthesiology and Resuscitology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Motomu Kobayashi
- Department of Anesthesiology and Resuscitology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Koji Nakagawa
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Aya Kimura-Ono
- Center for Innovative Clinical Medicine, Okayama University Hospital
| | - Katsuyuki Hotta
- Center for Innovative Clinical Medicine, Okayama University Hospital
| | - Hiroshi Morimatsu
- Department of Anesthesiology and Resuscitology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
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Murai S, Hiramatsu M, Suzuki E, Ishibashi R, Takai H, Miyazaki Y, Takasugi Y, Yamaoka Y, Nishi K, Takahashi Y, Haruma J, Hishikawa T, Yasuhara T, Chin M, Matsubara S, Uno M, Tokunaga K, Sugiu K, Date I. Trends in Incidence of Intracranial and Spinal Arteriovenous Shunts: Hospital-Based Surveillance in Okayama, Japan. Stroke 2021; 52:1455-1459. [PMID: 33596673 DOI: 10.1161/strokeaha.120.032052] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE To date, the incidence of intracranial and spinal arteriovenous shunts has not been thoroughly investigated. We aimed to clarify recent trends in the rates of intracranial and spinal arteriovenous shunts in Japan. METHODS We conducted multicenter hospital-based surveillance at 8 core hospitals in Okayama Prefecture between April 1, 2009 and March 31, 2019. Patients who lived in Okayama and were diagnosed with cerebral arteriovenous malformations, dural arteriovenous fistulas (DAVFs), or spinal arteriovenous shunts (SAVSs) were enrolled. The incidence and temporal trends of each disease were calculated. RESULTS Among a total of 393 cranial and spinal arteriovenous shunts, 201 (51.1%) cases of DAVF, 155 (39.4%) cases of cerebral arteriovenous malformation, and 34 (8.7%) cases of SAVS were identified. The crude incidence rates between 2009 and 2019 were 2.040 per 100 000 person-years for all arteriovenous shunts, 0.805 for cerebral arteriovenous malformation, 1.044 for DAVF, and 0.177 for SAVS. The incidence of all types tended to increase over the decade, with a notable increase in incidence starting in 2012. Even after adjusting for population aging, the incidence of nonaggressive DAVF increased 6.0-fold while that of SAVS increased 4.4-fold from 2010 to 2018. CONCLUSIONS In contrast to previous studies, we found that the incidence of DAVF is higher than that of cerebral arteriovenous malformation. Even after adjusting for population aging, all of the disease types tended to increase in incidence over the last decade, with an especially prominent increase in SAVSs and nonaggressive DAVFs. Various factors including population aging may affect an increase in DAVF and SAVS.
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Affiliation(s)
- Satoshi Murai
- Department of Neurological Surgery (S.M., M.H., Y.Y., K.N., Y. Takahashi, J.H., T.H., T.Y., K.S., I.D.), Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Masafumi Hiramatsu
- Department of Neurological Surgery (S.M., M.H., Y.Y., K.N., Y. Takahashi, J.H., T.H., T.Y., K.S., I.D.), Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Etsuji Suzuki
- Department of Epidemiology (E.S.), Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Ryota Ishibashi
- Department of Neurosurgery, Kurashiki Central Hospital, Japan (R.I., M.C.)
| | - Hiroki Takai
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki, Japan (H.T., Y.M., S.M., M.U.)
| | - Yuko Miyazaki
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki, Japan (H.T., Y.M., S.M., M.U.)
| | - Yuji Takasugi
- Department of Neurological Surgery (S.M., M.H., Y.Y., K.N., Y. Takahashi, J.H., T.H., T.Y., K.S., I.D.), Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan.,Department of Neurosurgery, Okayama City Hospital Okayama City General Medical Center, Japan (Y. Takasugi, K.T.)
| | | | - Kazuhiko Nishi
- Department of Neurological Surgery (S.M., M.H., Y.Y., K.N., Y. Takahashi, J.H., T.H., T.Y., K.S., I.D.), Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Yu Takahashi
- Department of Neurological Surgery (S.M., M.H., Y.Y., K.N., Y. Takahashi, J.H., T.H., T.Y., K.S., I.D.), Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Jun Haruma
- Department of Neurological Surgery (S.M., M.H., Y.Y., K.N., Y. Takahashi, J.H., T.H., T.Y., K.S., I.D.), Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Tomohito Hishikawa
- Department of Neurological Surgery (S.M., M.H., Y.Y., K.N., Y. Takahashi, J.H., T.H., T.Y., K.S., I.D.), Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Takao Yasuhara
- Department of Neurological Surgery (S.M., M.H., Y.Y., K.N., Y. Takahashi, J.H., T.H., T.Y., K.S., I.D.), Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Masaki Chin
- Department of Neurosurgery, Kurashiki Central Hospital, Japan (R.I., M.C.)
| | - Shunji Matsubara
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki, Japan (H.T., Y.M., S.M., M.U.)
| | - Masaaki Uno
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki, Japan (H.T., Y.M., S.M., M.U.)
| | - Koji Tokunaga
- Department of Neurosurgery, Okayama City Hospital Okayama City General Medical Center, Japan (Y. Takasugi, K.T.)
| | - Kenji Sugiu
- Department of Neurological Surgery (S.M., M.H., Y.Y., K.N., Y. Takahashi, J.H., T.H., T.Y., K.S., I.D.), Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Isao Date
- Department of Neurological Surgery (S.M., M.H., Y.Y., K.N., Y. Takahashi, J.H., T.H., T.Y., K.S., I.D.), Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
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Murai S, Hishikawa T, Hiramatsu M, Haruma J, Takahashi Y, Sugiu K, Takeda Y, Date I. Impact of Spreading Depolarization and Extracellular Glutamate Levels on Early Brain Injury after Subarachnoid Hemorrhage in Rats. Neurosurgery 2020. [DOI: 10.1093/neuros/nyaa447_220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Hiramatsu M, Sugiu K, Hishikawa T, Haruma J, Takahashi Y, Murai S, Nishi K, Yamaoka Y, Shimazu Y, Fujii K, Kameda M, Kurozumi K, Date I. Detailed Arterial Anatomy and Its Anastomoses of the Sphenoid Ridge and Olfactory Groove Meningiomas with Special Reference to the Recurrent Branches from the Ophthalmic Artery. AJNR Am J Neuroradiol 2020; 41:2082-2087. [PMID: 33004344 DOI: 10.3174/ajnr.a6790] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 07/15/2020] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Detailed arterial anatomy of the sphenoid ridge and olfactory groove meningiomas is complicated due to the fine angioarchitecture and anastomoses between each feeder. Herein, we present details of the arterial anatomy and the relationships of feeders in these lesions. MATERIALS AND METHODS This study included 20 patients admitted to our department between April 2015 and March 2020. Conditions of subjects consisted of 16 sphenoid ridge meningiomas and 4 olfactory groove meningiomas. We mainly analyzed arterial anatomy using 3D rotational angiography and slab MIP images of these lesions. We also analyzed the anastomoses of each feeder. RESULTS We found that 19 (95%), 15 (75%), and 15 (75%) lesions had feeders from the ophthalmic, internal carotid, and external carotid arteries, respectively. As feeders from the ophthalmic artery, recurrent meningeal arteries were involved in 18 lesions (90%). Fifteen lesions (75%) had anastomoses between each feeder. CONCLUSIONS Most of the meningiomas in the sphenoid ridge and olfactory groove had feeders from the ophthalmic and internal carotid arteries. There were various anastomoses between each feeder. This is the first report to demonstrate the detailed arterial anatomy and frequency of recurrent branches from the ophthalmic artery and their anastomoses using detailed imaging techniques.
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Affiliation(s)
- M Hiramatsu
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - K Sugiu
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - T Hishikawa
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - J Haruma
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Y Takahashi
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - S Murai
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - K Nishi
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Y Yamaoka
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Y Shimazu
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - K Fujii
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - M Kameda
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - K Kurozumi
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Neurosurgery (K.K.), Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - I Date
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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Murai S, Sugiura T, Dohi Y, Takase H, Mizoguchi T, Yamashita S, Seo Y, Fujii S, Ohte N. Arterial stiffness could reflect increased cardiac load and reduced pulmonary function in the general population. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Pulmonary function is known to decrease with age and reduced pulmonary function has been reported to be associated with all-cause mortality and cardiovascular death. The association between pulmonary impairment and atherosclerosis was reported previously but has not been investigated sufficiently in the general population.
Purpose
We hypothesized that arterial stiffness could reflect increase of cardiac load and reduced pulmonary function. The present study aimed to investigate whether increased cardiac load and reduced pulmonary function could affect arterial stiffness in the general population.
Methods
Subjects undergoing their health check-up were enrolled. Plasma B-type natriuretic peptide (BNP) levels and serum high-sensitivity cardiac troponin I (hs-cTnI) levels were measured to evaluate cardiac load and myocardial damage. Radial augmentation index (rAI) was measured to investigate arterial stiffness using HEM-9000AI device. Subjects with an ST-T segment abnormality on the electrocardiogram, renal insufficiency, cancer, active inflammatory disease, or a history of cardiovascular events and pulmonary disease were excluded. Pulmonary function was assessed using spirometry by calculating forced vital capacity (FVC) as a percentage of predicted value (FVC%-predicted), forced expiratory volume in 1 second (FEV1) as a percentage of predicted value (FEV1%-predicted), and the ratio of FEV1 to FVC (FEV1/FVC).
Results
A total of 1100 subjects aged 57 years were enrolled and their median values of BNP and hs-cTnI were 15.5 and 2.3 pg/ml. The levels of rAI were significantly associated with the levels of BNP after adjustment for possible confounders in multivariate regression analysis, but were not with the levels of hs-TnI. While the parameters of pulmonary function were inversely associated with the levels of rAI and hs-cTnI after adjustment for possible confounders in the multivariate regression analysis, but not with the levels of BNP. The other multivariate regression analyses where BNP, hs-cTnI, parameters of pulmonary function, and the other possible factors were simultaneously included as independent variables revealed that the BNP levels and the FVC%-predicted or FEV1%-predicted, besides age, gender, smoking status, body mass index, blood pressure, heart rate, creatinine, fasting plasma glucose, and triglyceride, were significantly associated with the levels of rAI.
Conclusions
The significant associations of rAI with BNP and pulmonary function were revealed in the general population. These findings support that arterial stiffness could reflect increased cardiac load and reduced pulmonary function, in apparently healthy individuals.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Murai
- Nagoya City University Graduate School of Medical Scinece, Nagoya, Japan
| | - T Sugiura
- Nagoya City University Graduate School of Medical Scinece, Nagoya, Japan
| | - Y Dohi
- Nagoya Gakuin University, Department of Internal Medicine, Faculty of Rehabilitation, Seto, Japan
| | - H Takase
- Enshu Hospital, Department of Internal Medicine, Hamamatsu, Japan
| | - T Mizoguchi
- Nagoya City University Graduate School of Medical Scinece, Nagoya, Japan
| | - S Yamashita
- Nagoya City University Graduate School of Medical Scinece, Nagoya, Japan
| | - Y Seo
- Nagoya City University Graduate School of Medical Scinece, Nagoya, Japan
| | - S Fujii
- Asahikawa Medical University, Department of Laboratory Medicine, Asahikawa, Japan
| | - N Ohte
- Nagoya City University Graduate School of Medical Scinece, Nagoya, Japan
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Hiramatsu M, Sugiu K, Haruma J, Hishikawa T, Takahashi Y, Murai S, Nishi K, Yamaoka Y, Date I. Osseous arteriovenous fistulas in the dorsum sellae, clivus, and condyle. Neuroradiology 2020; 63:133-140. [PMID: 32761279 DOI: 10.1007/s00234-020-02506-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/28/2020] [Indexed: 11/27/2022]
Abstract
PURPOSE Arteriovenous fistulas (AVFs) located in the cavernous sinus (CS), clivus, and condyle can be osseous shunts in nature. Here, we reviewed the angioarchitecture, clinical characteristics, and treatment results of AVFs in these lesions. METHODS Twenty-five patients with 27 lesions who underwent rotational angiography in our department between May 2013 and December 2019 were reviewed. We examined 20 CS AVFs, 2 clival AVFs, and 5 condylar AVFs. We divided the anatomical shunted pouches into five locations: the dorsum sellae (posteromedial of the CS), posterolateral wall of the CS, lateral wall of the CS, clivus, and condyle. We divided the AVFs into three categories: intraosseous, transitional, and nonosseous shunts. We analyzed the characteristics and treatment results. RESULTS A total of 33 shunted pouches or points were identified in 27 lesions. The dorsum sellae (n = 16) was the most frequent location. Fourteen AVFs (88%) in the dorsum sellae were osseous (intraosseous or transitional) shunts. All AVFs in the clivus or condyle were also osseous shunts. Eleven lesions (92%) of intraosseous and all lesions of transitional shunts exhibited bilateral external carotid artery involvement as feeders. Ten lesions (83%) of intraosseous shunts were treated with selective transvenous embolization of the shunted pouch with or without additional partial embolization of the sinus. Eleven (92%) intraosseous shunts were completely occluded, and symptom resolution was achieved in all intraosseous shunts. CONCLUSION Most of the CS AVFs with shunted pouches in the dorsum sellae and all of the AVFs in the clivus and condyle share similar characteristics.
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Affiliation(s)
- Masafumi Hiramatsu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
| | - Kenji Sugiu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Jun Haruma
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Tomohito Hishikawa
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Yu Takahashi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Satoshi Murai
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Kazuhiko Nishi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Yoko Yamaoka
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
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Moriya K, Nishimura Y, Nakamura M, Kon M, Kitta T, Araki A, Miyashita C, Ito S, Cho K, Mitsui T, Murai S, Nonomura K, Kishi R, Shinohara N. Establishment of nocturnal bladder control and behavioral sexual dimorphism in children. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33228-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Yasuhara T, Murai S, Mikuni N, Miyamoto S, Date I. Japanese National Questionnaire Survey in 2018 on Complications Related to Cranial Implants in Neurosurgery. Neurol Med Chir (Tokyo) 2020; 60:337-350. [PMID: 32536658 PMCID: PMC7358783 DOI: 10.2176/nmc.oa.2020-0051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Cranial implants are commonly used throughout the world, yet the data on
complications remain partly clarified. The aim of this study was to gather real
data in 2018 on complications related to cranial implants in neurosurgery. The
survey population consisted of 1103 institutes supplying neurosurgical
treatment. The survey consisted of two-stage questionnaire. First the incidence
of complications was investigated, then the secondary questionnaire was e-mailed
to the respondents about the detailed of the complications. As the result, the
annual incidence of complications related to cranial implants was 0.558% in
Japan. Titanium plate and mesh were used predominantly in craniotomy and
cranioplasty, respectively. The second survey collected data on 449 cases with
complications (infection: 63%, implant exposure: 46%, multiple answer).
Postoperative infection was associated with male sex, brain tumor, short
interval between surgery and complication, usage of ceramics, hydroxyapatite,
resin, and artificial dura, hyponutrition, multiple surgeries, dirty wound, and
sinusitis as patient factors, and CSF leakage, ruptured sutures, and sinus
maltreatment as surgery factors. Meanwhile, long hospital stay was associated
with age, male sex, mRS 3–5 before complication, short interval between
initial surgery and complication, large craniotomy, long operative time, usage
of ceramics and artificial dura, multiple surgeries and dirty wound as patient
factors, ruptured suture as a surgical factor, and bacterial infection,
especially MRSA infection, as the complication and treatment consisting of
removal as complication factors. In conclusion, this is the first Japanese
national survey on complications related to cranial implants in neurosurgery. It
is important to recall that complications may arise years after surgery and to
be aware of the risk factors associated with complications.
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Affiliation(s)
- Takao Yasuhara
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Satoshi Murai
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | | | | | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
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Abe T, Minami K, Harabayashi T, Sazawa A, Chiba H, Kikuchi H, Miyata H, Matsumoto R, Osawa T, Maruyama S, IshizakiIshizaki J, Mochizuki T, Chiba S, Akino T, Murakumo M, Miyajima N, Tsuchiya K, Murai S, Shinohara N. Erratum to: Outcome of maintenance systemic chemotherapy with drug-free interval for metastatic urothelial carcinoma. Jpn J Clin Oncol 2020; 50:726. [PMID: 32382760 PMCID: PMC7284546 DOI: 10.1093/jjco/hyz196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/15/2019] [Accepted: 05/21/2019] [Indexed: 11/21/2022] Open
Affiliation(s)
- T Abe
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - K Minami
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Harabayashi
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - A Sazawa
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Kikuchi
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - H Miyata
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - R Matsumoto
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - T Osawa
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - S Maruyama
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | | | - T Mochizuki
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Akino
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - M Murakumo
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - N Miyajima
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - K Tsuchiya
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Murai
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - N Shinohara
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
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Hiramatsu M, Sugiu K, Yasuhara T, Hishikawa T, Haruma J, Takahashi Y, Murai S, Nishi K, Yamaoka Y, Date I. Detection of the common origin of the radiculomedullary artery with the feeder of spinal dural arteriovenous fistula using slab maximum intensity projection image. Neuroradiology 2020; 62:1285-1292. [PMID: 32488306 DOI: 10.1007/s00234-020-02466-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 05/22/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE Endovascular therapy to the spinal dural arteriovenous fistula (SDAVF) with a common origin of the radiculomedullary artery and the feeder of the shunt has the risk of spinal cord infarction. This study aimed to retrospectively assess the detection rate of normal spinal arteries from the feeder of SDAVF. METHODS We retrospectively collected the angiographic and clinical data of SDAVFs. This study included 19 patients with 20 SDAVF lesions admitted to our department between January 2007 and December 2018. We assessed the detection rate of normal radiculomedullary artery branched from the feeder of SDAVF between the period using the image intensifier (II) and flat panel detector (FPD) and evaluated the treatment results. RESULTS The detection rates of the radiculomedullary artery branched from the feeder of SDAVF were 10% (1/10 lesions) during the II period and 30% (3/10 lesions) during the FPD period. During the FPD period, all normal radiculomedullary arteries branched from the feeder were only detected on slab maximum intensity projection (MIP) images of rotational angiography, and we could not detect them in 2D or 3D digital subtraction angiography. All lesions that had a common origin of a normal radiculomedullary artery and the feeder were completely obliterated without complications. There was no recurrence during the follow-up period. CONCLUSIONS The flat panel detector and slab MIP images seem to show the common origin of the normal radiculomedullary arteries from the feeder more accurately. With detailed analyses, SDAVF can be safety treated.
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Affiliation(s)
- Masafumi Hiramatsu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
| | - Kenji Sugiu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Takao Yasuhara
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Tomohito Hishikawa
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Jun Haruma
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Yu Takahashi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Satoshi Murai
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Kazuhiko Nishi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Yoko Yamaoka
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
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Ariji Y, Hayashi T, Ideta R, Koga R, Murai S, Towatari F, Terashi Y, Sakai H, Kurata H, Maeda T. A prediction model of functional outcome at 6 months using clinical findings of a person with traumatic spinal cord injury at 1 month after injury. Spinal Cord 2020; 58:1158-1165. [DOI: 10.1038/s41393-020-0488-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 05/10/2020] [Accepted: 05/11/2020] [Indexed: 11/09/2022]
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Hiramatsu M, Sugiu K, Haruma J, Hishikawa T, Takahashi Y, Murai S, Nishi K, Yamaoka Y, Date I. Dural Arteriovenous Fistulas in the Parasellar Region Other Than the Cavernous Sinus. J Neuroendovasc Ther 2020; 14:593-604. [PMID: 37502140 PMCID: PMC10370661 DOI: 10.5797/jnet.ra.2020-0042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 04/08/2020] [Indexed: 07/29/2023]
Abstract
Besides cavernous sinus (CS) dural arteriovenous fistulas (AVFs), AVF may develop around the parasellar region. They can cause various symptoms, and some of them may show similar symptoms to those of CS dural AVF. Therefore, these AVFs may be misdiagnosed as CS dural AVFs. In this review, we divided parasellar AVFs into four groups based on their locations related to the CS: anterior group (orbit), anterolateral group (sphenoid wing), posteroinferior group (inferior petrosal sinus and clivus), and posterior group (superior petrosal sinus and petrosal vein). Although parasellar AVFs share common points, there are many differences between the four groups. We herein discuss commonalities and differences in parasellar AVFs based on a review of the literature and our experience.
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Affiliation(s)
- Masafumi Hiramatsu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Kenji Sugiu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Jun Haruma
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Tomohito Hishikawa
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Yu Takahashi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Satoshi Murai
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Kazuhiko Nishi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Yoko Yamaoka
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
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Nishihiro S, Hishikawa T, Hiramatsu M, Kidani N, Takahashi Y, Murai S, Sugiu K, Higaki Y, Yasuhara T, Borlongan CV, Date I. Correction to: High‑Mobility Group Box‑1‑Induced Angiogenesis After Indirect Bypass Surgery in a Chronic Cerebral Hypoperfusion Model. Neuromolecular Med 2020; 22:332-333. [PMID: 32103453 DOI: 10.1007/s12017-020-08594-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The original version of this article unfortunately contained a mistake. Figure 5a, b were incorrect. The correct figures are given below.
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Affiliation(s)
- Shingo Nishihiro
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2‑5‑1, Shikata‑cho, kita‑ku, Okayama, 700‑8558, Japan.
| | - Tomohito Hishikawa
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2‑5‑1, Shikata‑cho, kita‑ku, Okayama, 700‑8558, Japan
| | - Masafumi Hiramatsu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2‑5‑1, Shikata‑cho, kita‑ku, Okayama, 700‑8558, Japan
| | - Naoya Kidani
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2‑5‑1, Shikata‑cho, kita‑ku, Okayama, 700‑8558, Japan
| | - Yu Takahashi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2‑5‑1, Shikata‑cho, kita‑ku, Okayama, 700‑8558, Japan
| | - Satoshi Murai
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2‑5‑1, Shikata‑cho, kita‑ku, Okayama, 700‑8558, Japan
| | - Kenji Sugiu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2‑5‑1, Shikata‑cho, kita‑ku, Okayama, 700‑8558, Japan
| | - Yusuke Higaki
- Department of Pharmaceutical Analytical Chemistry, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, 1‑1‑1, Tsushima naka, kita‑ku, Okayama, 700‑8530, Japan
| | - Takao Yasuhara
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2‑5‑1, Shikata‑cho, kita‑ku, Okayama, 700‑8558, Japan
| | - Cesario V Borlongan
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL, 33612, USA.
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2‑5‑1, Shikata‑cho, kita‑ku, Okayama, 700‑8558, Japan
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Abe T, Minami K, Harabayashi T, Sazawa A, Chiba H, Kikuchi H, Miyata H, Matsumoto R, Osawa T, Maruyama S, Ishizaki J, Mochizuki T, Chiba S, Akino T, Murakumo M, Miyajima N, Tsuchiya K, Murai S, Shinohara N. Outcome of maintenance systemic chemotherapy with drug-free interval for metastatic urothelial carcinoma. Jpn J Clin Oncol 2020; 49:965-971. [PMID: 31187865 PMCID: PMC6886465 DOI: 10.1093/jjco/hyz084] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/15/2019] [Accepted: 05/21/2019] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE Aiming to achieve long-term disease control, maintenance systemic chemotherapy (MSC) with a 1-3-month drug-free interval is continued in selected patients. We report our experience of MSC for metastatic urothelial carcinoma (UC). METHODS Of 228 metastatic UC patients treated with systemic chemotherapy, 40 (17.5%, 40/228) had continuously undergone MSC. Data on the regimen, cycle number, and reason for the discontinuation of MSC were also collected. We analyzed OS from the initiation of MSC until death or the last follow-up, using the log-rank test to assess the significance of differences. RESULTS The median number of cycles of chemotherapy was 6, and the responses were CR in 6, PR in 20, SD in 13, and PD in 1 before MSC. Gemcitabine plus CDDP or carboplatin was mainly performed as MSC (70%, 28/40). MSC was repeated quarterly in 30 (75%, 30/40), every two months in 8 (20%, 8/40), and with other intervals in 2 (5%, 2/40). Overall, a median of 3.5 cycles (range: 1-29) of MSC was performed. The reason for the discontinuation of MSC was PD in 24 (60%, 24/40), favorable disease control in 9 (22.5%, 9/40), and myelosuppression in 3 (7.5%, 3/40), and for other reasons in 2 (5%, 2/40). MSC was ongoing in 2 (5%, 2/40). The median OS was 27 months from the initiation of MSC. PS0 (P = 0.0169), the absence of lung metastasis (P = 0.0387), and resection of the primary site (P = 0.0495) were associated with long-term survival after MSC. CONCLUSIONS In selected patients, long-term systemic chemotherapy could be performed with a drug-free interval. Our maintenance strategy with cytotoxic drugs may become one of the treatment options for long-term disease control.
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Affiliation(s)
- T Abe
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - K Minami
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Harabayashi
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - A Sazawa
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Kikuchi
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - H Miyata
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - R Matsumoto
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - T Osawa
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - S Maruyama
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - J Ishizaki
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Mochizuki
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Akino
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - M Murakumo
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - N Miyajima
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - K Tsuchiya
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Murai
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - N Shinohara
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
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Murai S, Sugiu K, Hishikawa T, Hiramatsu M, Nishihiro S, Kidani N, Takahashi Y, Date I. [A Case of Ruptured Arteriovenous Malformation Successfully Treated with Target Embolization for Pseudoaneurysm Detected Using Chronological Three-dimensional Digital Subtraction Angiography Fusion Images]. No Shinkei Geka 2020; 48:39-45. [PMID: 31983687 DOI: 10.11477/mf.1436204131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We herein report a case of ruptured arterio-venous malformation(AVM)detected using three-dimensional digital subtraction angiography(3DDSA)fusion images and successfully treated with target embolization for pseudoaneurysm. A 50-year-old man with a history of AVM was admitted to our department for the treatment of ruptured high-grade AVM in the right parietal lobe. Although a bleeding point was not evident on DSA, the patient had re-rupture in the right ventricle, one month after admission. Chronological 3DDSA fusion images generated from 3DDSA images taken on admission and after re-rupture revealed a newly visualized intranidal pseudoaneurysm near a hematoma. Contrast-enhanced magnetic resonance imaging showed vessel wall enhancement along the posterior horn of the right ventricle;this enhancement corresponded to the location of the pseudoaneurysm. We planned target embolization for the intranidal pseudoaneurysm to prevent re-bleeding. The origin of the feeder was so steep that a microcatheter could not be advanced deeply, and embolization with 20% n-butyl-2-cyanoacrylate resulted in proximal occlusion. Follow-up angiography 1 week after embolization showed complete disappearance of the pseudoaneurysm, and the patient had no recurrence of aneurysm until one year.
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Affiliation(s)
- Satoshi Murai
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
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Murai S, Sugiu K, Hishikawa T, Hiramatsu M, Nishihiro S, Kidani N, Takahashi Y, Nishi K, Yamaoka Y, Date I. Safety and efficacy of staged angioplasty for patients at risk of hyperperfusion syndrome: a single-center retrospective study. Neuroradiology 2020; 62:503-510. [DOI: 10.1007/s00234-019-02343-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 12/05/2019] [Indexed: 10/25/2022]
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Hiramatsu M, Sugiu K, Hishikawa T, Nishihiro S, Kidani N, Takahashi Y, Murai S, Date I, Kuwayama N, Satow T, Iihara K, Sakai N. Results of 1940 embolizations for dural arteriovenous fistulas: Japanese Registry of Neuroendovascular Therapy (JR-NET3). J Neurosurg 2019; 133:166-173. [PMID: 31252394 DOI: 10.3171/2019.4.jns183458] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 04/08/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Embolization is the most common treatment for dural arteriovenous fistulas (dAVFs). A retrospective, multicenter observational study was conducted in Japan to clarify the nature, frequency, and risk factors for complications of dAVF embolization. METHODS Patient data were derived from the Japanese Registry of Neuroendovascular Therapy 3 (JR-NET3). A total of 40,169 procedures were registered in JR-NET3, including 2121 procedures (5.28%) in which dAVFs were treated with embolization. After data extraction, the authors analyzed complication details and risk factors in 1940 procedures performed in 1458 patients with cranial dAVFs treated with successful or attempted embolization. RESULTS Transarterial embolization (TAE) alone was performed in 858 cases (44%), and transvenous embolization (TVE) alone was performed in 910 cases (47%). Both TAE and TVE were performed in one session in 172 cases (9%). Complications occurred in 149 cases (7.7%). Thirty-day morbidity and mortality occurred in 55 cases (2.8%) and 16 cases (0.8%), respectively. Non-sinus-type locations, radical embolization as the strategy, procedure done at a hospital that performed dAVF embolization in fewer than 10 cases during the study period, and emergency procedures were independent risk factors for overall complications. CONCLUSIONS Complication rates of dAVF embolization in Japan were acceptable. For better results, the risk factors identified in this study should be considered in treatment decisions.
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Affiliation(s)
- Masafumi Hiramatsu
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama
| | - Kenji Sugiu
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama
| | - Tomohito Hishikawa
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama
| | - Shingo Nishihiro
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama
| | - Naoya Kidani
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama
| | - Yu Takahashi
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama
| | - Satoshi Murai
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama
| | - Isao Date
- 1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama
| | - Naoya Kuwayama
- 2Division of Neuroendovascular Therapy, Department of Neurosurgery, University of Toyama, Toyama
| | - Tetsu Satow
- 3Department of Neurosurgery, National Cerebral and Cardiovascular Center, Suita, Osaka
| | - Koji Iihara
- 4Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka; and
| | - Nobuyuki Sakai
- 5Department of Neurological Surgery, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan
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Nishihiro S, Hishikawa T, Hiramatsu M, Kidani N, Takahashi Y, Murai S, Sugiu K, Higaki Y, Yasuhara T, Borlongan CV, Date I. High-Mobility Group Box-1-Induced Angiogenesis After Indirect Bypass Surgery in a Chronic Cerebral Hypoperfusion Model. Neuromolecular Med 2019; 21:391-400. [PMID: 31123914 PMCID: PMC6882763 DOI: 10.1007/s12017-019-08541-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 05/04/2019] [Indexed: 11/24/2022]
Abstract
High-mobility group box-1 (HMGB1) is a nuclear protein that promotes inflammation during the acute phase post-stroke, and enhances angiogenesis during the delayed phase. Here, we evaluated whether indirect revascularization surgery with HMGB1 accelerates brain angiogenesis in a chronic cerebral hypoperfusion model. Seven days after hypoperfusion induction, encephalo-myo-synangiosis (EMS) was performed with or without HMGB1 treatment into the temporal muscle. We detected significant increments in cortical vasculature (p < 0.01), vascular endothelial growth factor (VEGF) expression in the temporal muscle (p < 0.05), and ratio of radiation intensity on the operated side compared with the non-operated side after EMS in the HMGB1-treated group than in the control group (p < 0.01). Altogether, HMGB1 with EMS in a chronic hypoperfusion model promoted brain angiogenesis in a VEGF-dependent manner, resulting in cerebral blood flow improvement. This treatment may be an effective therapy for patients with moyamoya disease.
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Affiliation(s)
- Shingo Nishihiro
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, kita-ku, Okayama, 700-8558, Japan.
| | - Tomohito Hishikawa
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, kita-ku, Okayama, 700-8558, Japan
| | - Masafumi Hiramatsu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, kita-ku, Okayama, 700-8558, Japan
| | - Naoya Kidani
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, kita-ku, Okayama, 700-8558, Japan
| | - Yu Takahashi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, kita-ku, Okayama, 700-8558, Japan
| | - Satoshi Murai
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, kita-ku, Okayama, 700-8558, Japan
| | - Kenji Sugiu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, kita-ku, Okayama, 700-8558, Japan
| | - Yusuke Higaki
- Department of Pharmaceutical Analytical Chemistry, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, 1-1-1, Tsushima naka, kita-ku, Okayama, 700-8530, Japan
| | - Takao Yasuhara
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, kita-ku, Okayama, 700-8558, Japan
| | - Cesario V Borlongan
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL, 33612, USA.
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, kita-ku, Okayama, 700-8558, Japan
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Murai S, Sugiu K, Hishikawa T, Hiramatsu M, Nishihiro S, Kidani N, Takahashi Y, Date I. Endovascular treatment for unruptured aneurysm associated with persistent primitive trigeminal artery: a case report and literature review. Acta Neurochir (Wien) 2019; 161:407-411. [PMID: 30569223 DOI: 10.1007/s00701-018-3767-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 12/11/2018] [Indexed: 11/26/2022]
Abstract
The persistent primitive trigeminal artery (PPTA) is the most common carotid-basilar anastomosis, and the incidence of cerebral aneurysms associated with the PPTA is approximately 4%. Since PPTA aneurysms often have a wide neck and other vascular anomalies, endovascular treatment using an adjunctive technique is the current first-line therapy. Here, we report a case of PPTA aneurysm treated by coil embolization with a stent-assisted technique. A detailed evaluation of the size and course of all vessels and collateral flow, including the Allcock test and balloon test occlusion, is necessary when deciding on the treatment strategy.
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Affiliation(s)
- Satoshi Murai
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama, 700-8558, Japan
| | - Kenji Sugiu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama, 700-8558, Japan.
| | - Tomohito Hishikawa
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama, 700-8558, Japan
| | - Masafumi Hiramatsu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama, 700-8558, Japan
| | - Shingo Nishihiro
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama, 700-8558, Japan
| | - Naoya Kidani
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama, 700-8558, Japan
| | - Yu Takahashi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama, 700-8558, Japan
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama, 700-8558, Japan
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Sugiu K, Hishikawa T, Murai S, Takahashi Y, Kidani N, Nishihiro S, Hiramatsu M, Date I, Satow T, Iihara K, Sakai N. Treatment Outcome of Intracranial Tumor Embolization in Japan: Japanese Registry of NeuroEndovascular Therapy 3 (JR-NET3). Neurol Med Chir (Tokyo) 2019; 59:41-47. [PMID: 30686813 PMCID: PMC6375818 DOI: 10.2176/nmc.st.2018-0220] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Embolization for intracranial tumor is performed as a standard endovascular treatment. A retrospective, multicenter, observational study was conducted to clarify the nature, frequency, and risk factors of complications in intracranial tumor embolization. Patients were derived from the Japanese Registry of NeuroEndovascular Therapy (JR-NET3) using data taken from January 2010 through December 2014 in Japan. A total of 40,169 patients were enrolled in JR-NET3, of which, 1,545 patients (3.85%) with intracranial tumors underwent embolization. The primary end point was the proportion of patients with a modified Rankin scale (mRS) score of 0–2 (independency) at 30 days after embolization. The secondary end point was the occurrence of complications related to the procedures. The risk factors of the development of complications were analyzed. The proportion of patients with mRS scores ≤2 at 30 days after procedure was 89.5%. Complications occurred in 57 of the 1544 patients (3.7%). Multivariate analysis showed that target vessels other than external carotid artery (ECA) (OR, 3.56; 95% CI, 2.03–6.25; P <0.001) and use of liquid material (OR, 2.65; 95% CI, 1.50–4.68; P <0.001) were significantly associated with the development of complications. In JR-NET3, the primary end point was 89.5%, and the procedure-related complication rate was 3.7%. Embolization from other than ECA was significant risk factor of the complications. In addition, increasing usage of liquid embolic material worsened the risk of complications.
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Affiliation(s)
- Kenji Sugiu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Tomohito Hishikawa
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Satoshi Murai
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Yu Takahashi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Naoya Kidani
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Shingo Nishihiro
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Masafumi Hiramatsu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Tetsu Satow
- Department of Neurosurgery, National Cerebral and Cardiovascular Center
| | - Koji Iihara
- Department of Neurosurgery, Kyushu University
| | - Nobuyuki Sakai
- Department of Neurosurgery, Kobe City Medical Center General Hospital
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Murai S, Sugiu K, Hishikawa T, Hiramatsu M, Nishihiro S, Kidani N, Takahashi Y, Date I. Coil Embolization through Collateral Pathway for Ruptured Vertebral Artery Dissecting Aneurysm with Bilateral Vertebral Artery Occlusion. J Stroke Cerebrovasc Dis 2018; 27:e215-e218. [DOI: 10.1016/j.jstrokecerebrovasdis.2018.04.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 04/26/2018] [Indexed: 12/01/2022] Open
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Murai S, Takase H, Sugiura T, Ohte N, Dohi Y. P4552Recent changes of blood pressure levels, the prevalence and treatment rate of hypertension, and the accomplishment rate of the target blood pressure in the elderly person. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Murai S, Ando A, Ebara S, Hirayama M, Satomi Y, Hara T. Inhibition of malic enzyme 1 disrupts cellular metabolism and leads to vulnerability in cancer cells in glucose-restricted conditions. Oncogenesis 2017; 6:e329. [PMID: 28481367 PMCID: PMC5523067 DOI: 10.1038/oncsis.2017.34] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 02/17/2017] [Accepted: 03/27/2017] [Indexed: 12/24/2022] Open
Abstract
Malic enzyme 1 (ME1) regulates one of the main pathways that provide nicotinamide adenine dinucleotide phosphate (NADPH), which is essential for cancer cell growth through maintenance of redox balance and biosynthesis processes in the cytoplasm. In this study, we found that ME1 inhibition disrupted metabolism in cancer cells and inhibited cancer cell growth by inducing senescence or apoptosis. In glucose-restricted culture conditions, cancer cells increased ME1 expression, and tracer experiments with labelled glutamine revealed that the flux of ME1-derived pyruvate to citrate was enhanced. In addition, cancer cells showed higher sensitivity to ME1 depletion in glucose-restricted conditions compared to normal culture conditions. These results suggest that in a low-glucose environment, where glycolysis and the pentose phosphate pathway (PPP) is attenuated, cancer cells become dependent on ME1 for the supply of NADPH and pyruvate. Our data demonstrate that ME1 is a promising target for cancer treatment, and a strategy using ME1 inhibitors combined with inhibition of glycolysis, PPP or redox balance regulators may provide an effective therapeutic option.
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Affiliation(s)
- S Murai
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company, Kanagawa, Japan
| | - A Ando
- Integrated Technology Research Laboratories, Pharmaceutical Research Division, Takeda Pharmaceutical Company, Kanagawa, Japan
| | - S Ebara
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company, Kanagawa, Japan
| | - M Hirayama
- Integrated Technology Research Laboratories, Pharmaceutical Research Division, Takeda Pharmaceutical Company, Kanagawa, Japan
| | - Y Satomi
- Integrated Technology Research Laboratories, Pharmaceutical Research Division, Takeda Pharmaceutical Company, Kanagawa, Japan
| | - T Hara
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company, Kanagawa, Japan
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Nishi K, Murai S, Itami H, Otsuka S, Kusaka N, Nishiura T, Kimura N, Ogihara K. [A Case of Arteriovenous Malformation of the Parotid Gland Associated with Cowden Disease]. No Shinkei Geka 2017; 45:333-338. [PMID: 28415058 DOI: 10.11477/mf.1436203505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We report a rare case of arteriovenous malformation(AVM)of the parotid gland associated with Cowden disease successfully treated with preoperative embolization followed by surgical removal. A 39-year-old man with a history of Cowden disease presented with a pulsating and growing mass on his left lower jaw. Contrast-enhanced computed tomography(CT)and angiography revealed a high-flow AVM in the deep lobe of the left parotid gland. After intravascular embolization of the feeding arteries, surgery was performed using the NIM-response<sup>®</sup>3.0, facial nerve monitoring system. The AVM was almost completely removed and the facial nerves were morphologically preserved. Interestingly, the intraoperative findings revealed that the enlarged vasa nervorum of the facial nerve also fed the AVM. Although left facial nerve palsy appeared after the surgery, the nerve function gradually improved over one year. No recurrence of the AVM has been observed for one year.
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Affiliation(s)
- Kazuhiko Nishi
- Department of Neurosurgery, National Hospital Organization Iwakuni Clinical Center
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Murai S, Itami H, Nishi K, Otsuka S, Kusaka N, Nishiura T, Ogihara K. Coronary Subclavian Steal Syndrome Successfully Treated with Subclavian Artery Stenting: A Report of 2 Cases. J Stroke Cerebrovasc Dis 2017; 26:e64-e68. [DOI: 10.1016/j.jstrokecerebrovasdis.2017.01.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 12/07/2016] [Accepted: 01/08/2017] [Indexed: 11/16/2022] Open
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Murai S, Ichikawa T, Kurozumi K, Shimazu Y, Oka T, Otani Y, Shimizu T, Date I. Quantitative analysis of brain edema in patients with malignant glioma treated with BCNU wafers. J Clin Neurosci 2016; 33:148-153. [PMID: 27452129 DOI: 10.1016/j.jocn.2016.03.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 03/09/2016] [Accepted: 03/11/2016] [Indexed: 12/31/2022]
Abstract
BCNU wafers are a form of interstitial chemotherapy that is expected to improve the survival of patients with malignant glioma. However, their adverse events, especially brain edema, sometimes cause significant clinical symptoms. In this study, we performed a volumetric analysis of brain edema after the implantation of BCNU wafers and reported on the clinical course, and exacerbation factors of brain edema. Twelve patients who underwent surgical resection of supratentorial malignant glioma and BCNU wafer implantation, were enrolled. Radiographic quantitative analysis was conducted and compared with a historical control. The volume change in brain edema was divided into three groups and correlation with clinical symptoms was then evaluated. Compared with the control group, the brain edema in the BCNU wafer implantation group was significantly prolonged after surgery. Radiographic volumetric analysis revealed an increase of more than 25% at any time after surgery in four patients (33%) and a reduction of less than 25%, 1month after surgery in three patients (25%). Grade 3 clinical deterioration related to brain edema occurred in two patients and Grade 2 in one patient. Univariate analysis revealed that the radiographic deterioration of brain edema had no correlation with age, sex, diagnosis, tumor grade, preoperative volume of brain edema and tumor, residual tumor volume, or number of BCNU wafers. Radiographic quantitative analysis of brain edema indicated that BCNU wafer implantation may induce the prolongation and enlargement of brain edema with or without neurological deterioration. Brain edema may be controlled by intensive perioperative treatment with diuretics and corticosteroids.
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Affiliation(s)
- Satoshi Murai
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Tomotsugu Ichikawa
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
| | - Kazuhiko Kurozumi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Yosuke Shimazu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Tetsuo Oka
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Yoshihiro Otani
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Toshihiko Shimizu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
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Murai S, Kusaka N, Umakoshi M, Itami H, Otsuka S, Nishiura T, Ogihara K. Stenting for Internal Carotid Artery Stenosis Associated with Persistent Primitive Hypoglossal Artery Using Proximal Flow Blockade and Distal Protection System: A Technical Case Report and Literature Review. J Stroke Cerebrovasc Dis 2016; 25:e98-e102. [DOI: 10.1016/j.jstrokecerebrovasdis.2016.03.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 03/15/2016] [Indexed: 10/21/2022] Open
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Murakami Y, Suzuki T, Nii Y, Murai S, Arima T, Kainuma R, Shindo D. Application of strain to orbital-spin-coupled system MnV2O4 at cryogenic temperatures within a transmission electron microscope. Microscopy (Oxf) 2016; 65:223-32. [PMID: 26754562 DOI: 10.1093/jmicro/dfv377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Accepted: 11/30/2015] [Indexed: 11/14/2022] Open
Abstract
The impact of mechanical stress on the morphology of crystallographic and magnetic domains in shape-controlled specimens of an orbital-spin-coupled system, MnV2O4, was examined by cryogenic Lorentz microscopy. Because of the difference in thermal expansion coefficients of MnV2O4 and the supporting Mo mesh, compression on the order of 0.01% was applied to the thin-foil specimens near the structural/magnetic phase transformation temperatures. The extent of compression was comparable to the lattice striction associated with the cubic-to-tetragonal phase transformation in MnV2O4 The applied strain thus clearly influenced the morphology of crystallographic domains (i.e. twinning configuration in the tetragonal phase) produced during cooling. The magnetic domain structure was entirely dependent on the configuration of twinning in the tetragonal phase. The observations in this study provided useful information for understanding the relationship between the crystallographic domains and the magnetic domains in MnV2O4.
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Affiliation(s)
- Y Murakami
- The Ultramicroscopy Research Center, Kyushu University, Fukuoka 819-0395, Japan Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Fukuoka 819-0395, Japan RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - T Suzuki
- JEOL Ltd., Akishima 196-8558, Japan
| | - Y Nii
- Department of Basic Science, The University of Tokyo, Tokyo 153-8902, Japan
| | - S Murai
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - T Arima
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan Department of Advanced Materials Science, The University of Tokyo, Kashiwa 277-8561, Japan
| | - R Kainuma
- Department of Materials Science, Tohoku University, Sendai 980-8579, Japan
| | - D Shindo
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
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Murai S, Matsuda K, Ikebe K, Enoki K, Hatta K, Fujiwara K, Maeda Y. A field survey of the partially edentate elderly: Investigation of factors related to the usage rate of removable partial dentures. J Oral Rehabil 2015; 42:828-32. [PMID: 26059645 DOI: 10.1111/joor.12318] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2015] [Indexed: 11/30/2022]
Abstract
Although the shortened dental arch (SDA) concept has been known to all over the world, acceptance of the SDA concept as an oral health standard can be questionable from the patients' point of view, even if it is biologically reasonable. Furthermore, because the health insurance system covers removable partial dentures (RPDs) for all citizens in Japan, SDA patients seem to prefer to receive prosthetic treatment to replace the missing teeth. However, there were few field surveys to investigate the usage rate of RPDs in Japan. The purpose of this study was to determine the usage rate of RPDs in older Japanese subjects and to investigate the factors related to the usage of RPDs. Partially edentate participants (n = 390) were included in this study. Oral examinations were conducted to record several indices. The Cochran-Armitage trend test was used to evaluate the relationship between the number of missing teeth and the usage rate of RPDs. Chi-squared tests and logistic regression analysis were conducted to evaluate the factors related to the usage rate of RPDs. Usage of RPDs had a significantly positive association with the number of missing distal extension teeth and bilaterally missing teeth. The usage rate of RPDs increased as the number of missing distal extension teeth increased (P for trend < 0·001). The conclusion of this study was that participants with missing distal extension teeth had higher usage rates of RPDs than other participants, and the usage rate increased as the number of missing distal extension teeth increased.
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Affiliation(s)
- S Murai
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Japan
| | - K Matsuda
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Japan
| | - K Ikebe
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Japan
| | - K Enoki
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Japan
| | - K Hatta
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Japan
| | - K Fujiwara
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Y Maeda
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Japan
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Murai S, Verschuuren MA, Lozano G, Pirruccio G, Rodriguez SRK, Rivas JG. Hybrid plasmonic-photonic modes in diffractive arrays of nanoparticles coupled to light-emitting optical waveguides. Opt Express 2013; 21:4250-4262. [PMID: 23481959 DOI: 10.1364/oe.21.004250] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We study the hybridized plasmonic-photonic modes supported by two-dimensional arrays of metallic nanoparticles coupled to light-emitting optical waveguides. Localized surface plasmon polaritons in the metallic nanoparticles can couple to guided modes in the underlying waveguide, forming quasi-guided hybrid modes, or to diffracted orders in the plane of the array, forming surface lattice resonances. We consider three kinds of samples: one sustains quasi-guided modes only, another sustains surface lattice resonances only, and a third sample sustains both modes. This third sample constitutes the first demonstration of simultaneous coupling of localized surface plasmons to guided modes and diffracted orders. The dispersive properties of the modes in the samples are investigated through light extinction and emission spectroscopy. We elucidate the conditions that lead to the coexistence of surface lattice resonances and quasi-guided hybrid modes, and assess their potential for enhancing the luminescence of emitters embedded in the coupled waveguide. We find the largest increase in emission intensity for the surface lattice resonances, reaching up to a factor of 20.
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Affiliation(s)
- S Murai
- FOM Institute for Atomic and Molecular Physics AMOLF, c/o Philips Research Laboratories, High Tech Campus 4, 5656 AE, Eindhoven, The Netherlands.
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Kagawa R, Ikebe K, Enoki K, Murai S, Okada T, Matsuda K, Maeda Y. Influence of hypertension on pH of saliva in older adults. Oral Dis 2012; 19:525-9. [DOI: 10.1111/odi.12043] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 07/13/2012] [Accepted: 07/17/2012] [Indexed: 11/27/2022]
Affiliation(s)
- R Kagawa
- Department of Removable Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Osaka Japan
| | - K Ikebe
- Department of Removable Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Osaka Japan
| | - K Enoki
- Department of Removable Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Osaka Japan
| | - S Murai
- Department of Removable Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Osaka Japan
| | - T Okada
- Department of Removable Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Osaka Japan
| | - K Matsuda
- Department of Removable Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Osaka Japan
| | - Y Maeda
- Department of Removable Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Osaka Japan
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Abstract
We demonstrate the generation of light in an optical waveguide strongly coupled to a periodic array of metallic nanoantennas. This coupling gives rise to hybrid waveguide-plasmon polaritons (WPPs), which undergo a transmutation from plasmon to waveguide mode and vice versa as the eigenfrequency detuning of the bare states transits through zero. Near zero detuning, the structure is nearly transparent in the far-field but sustains strong local field enhancements inside the waveguide. Consequently, light-emitting WPPs are strongly enhanced at energies and in-plane momenta for which WPPs minimize light extinction. We elucidate the unusual properties of these polaritons through a classical model of coupled harmonic oscillators.
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Affiliation(s)
- S R K Rodriguez
- Center for Nanophotonics, FOM Institute AMOLF, c/o Philips Research Laboratories, High Tech Campus 4, 5656 AE Eindhoven, The Netherlands.
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Kubota Y, Maruyama K, Sato S, Ishikawa Y, Shimamoto T, Inagawa M, Ohshima M, Murai S, Iso H. Reproducibility of 24-hour dietary recall for vitamin intakes by middle-aged Japanese men and women. J Nutr Health Aging 2010; 14:196-200. [PMID: 20191252 DOI: 10.1007/s12603-010-0048-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To examine the reproducibility of 24-hour dietary recall for estimating dietary vitamin intakes by middle-aged Japanese men and women. METHODS AND RESULTS The subjects were 132 men and 130 women aged 40-69 years, selected from participants in cardiovascular risk surveys conducted in 4 communities. The reproducibility of the 24-hour dietary recall was tested by comparing nutrient and food intake for two recalls conducted on the same season 1 year apart, designated as recalls 1 and 2. Differences in mean values between two recalls were tested using analysis of variance, and Spearman rank correlation coefficients for the two recalls were calculated for nutrient and food intakes. Mean values of energy and vitamins for both sexes were generally similar for the two recalls. The reproducibility of recall by men was high for vitamin B2, folate, pantothenic acid, and vitamin C and by women for vitamin B2, moderate by men for vitamins A, E, K, B1, B6 and niacin, and by women for vitamins A, E, K, B1, B6 and niacin, folate, pantothenic acid and vitamin C, and low by both men and women for vitamins D and B12. The reproducibility during 1985-1999 was generally lower than that of 1973-1984, but that for folate, pantothenic acid and vitamin C remained to be moderate in 1984-1999. CONCLUSIONS Although the reproducibility of 24-hour dietary recall varies among vitamins, moderate and sustained reproducibility was observed for folate, vitamin C and pantothenic acid.
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Affiliation(s)
- Y Kubota
- Public Health, Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
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Yoshida T, Hibino T, Kako N, Murai S, Oguri M, Kato K, Yajima K, Ohte N, Yokoi K, Kimura G. Pathophysiology of 'Tako-Tsubo' cardiomyopathy: collecting pieces of a puzzle: reply. Eur Heart J 2008. [DOI: 10.1093/eurheartj/ehn065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Yoshida T, Hibino T, Kako N, Murai S, Oguri M, Kato K, Yajima K, Ohte N, Yokoi K, Kimura G. A pathophysiological study of tako-tsubo cardiomyopathy with F-18 fluorodeoxyglucose positron emission tomography: reply. Eur Heart J 2008. [DOI: 10.1093/eurheartj/ehn001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sumikawa H, Johkoh T, Tomiyama N, Hamada S, Koyama M, Tsubamoto M, Murai S, Inoue A, Nakamura H, Tachibana T, Müller NL. Pulmonary alveolar microlithiasis: CT and pathologic findings in 10 patients. Monaldi Arch Chest Dis 2005; 63:59-64. [PMID: 16035566 DOI: 10.4081/monaldi.2005.659] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND AND AIM To evaluate CT findings of pulmonary alveolar microlithiasis and correlate the CT with the pathologic findings. METHODS The study included 10 patients with pathologically proven microlithiasis. Two independent observers evaluated the presence, extent and distribution of the CT findings. CT findings were compared with those at autopsy in two patients and with transbronchial biopsy in eight patients. RESULTS All patients had a myriad of calcified nodules measuring approximately 1 mm in diameter. Close apposition of the nodules resulted in areas of ground-glass attenuation and consolidation, which were the predominant abnormality on CT in all 10 patients, involving 41% +/- 16.3 (mean +/- SD) and 30% +/- 4.8 of the lung parenchyma, respectively. Calcifications were also seen along interlobular septa, bronchovascular bundles and pleura. Other findings included interlobular septal thickening, thickening of bronchovascular bundles, nodules, and subpleural cysts. There was a solid agreement between the observers for the presence (kappa value; 0.77) and extent (Spearman rank correlation; r = 0.81 to 1.0 p < 0.01) of abnormalities. Autopsy specimens demonstrated microliths in alveolar airspaces and along interlobular septa, bronchovascular bundles and pleura. Subpleural small cysts were shown to represent dilated alveolar ducts. CONCLUSION Pulmonary microlithiasis is characterised by the presence of numerous small, calcified nodules, calcifications along interlobular septa, bronchovascular bundles and pleura, ground-glass opacities, consolidation, and subpleural cysts. The cysts represent dilated alveolar ducts.
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Affiliation(s)
- H Sumikawa
- Department of Radiology, Osaka University Graduate School of Medical, 2-2 Yamadaoka, Suita, Osaka, 565-0825, Japan.
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Shibuya K, Tanaka J, Kuboyama N, Murai S, Ogaki T. Cerebral cortex activity during supramaximal exhaustive exercise. J Sports Med Phys Fitness 2004; 44:215-9. [PMID: 15470321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
AIM The purpose of this study was to examine the effect of fatigue resulting from supramaximal dynamic exercise on cerebral cortex activity. METHODS Five healthy male subjects (age 24.6+/-0.4 years, body weight 62.9+/-1.1 kg, height 175.3+/-1.2 cm, and maximal O2 uptake per body mass 48.4+/-1.3 ml/kg/min) participated in this study. All subjects performed at 120% of maximal oxygen uptake (VO2peak) on a cycle ergometer until reaching a state of volitional fatigue. Cerebral oxygenation was measured by near-infrared spectroscopy (NIRS) throughout the supramaximal constant exhaustive exercise. RESULTS The mean exercise duration of the subjects was 147.2+/-3.4 s. The peak value of blood lactate concentration within 3-10 min after the exercise test was 14.4+/-0.1 mmol/l. Cerebral oxygenation (8.8+/-1.8 micromol/l) was increased significantly during the first minutes of exercise compared with the pre-exercise value (p<0.05) and cerebral oxygenation decreased with the passage of time during exercise. Cerebral oxygenation at the end of exercise decreased significantly compared with the resting value (-29.9+/-3.4 micromol/l, p<0.05). CONCLUSION These findings suggest that the exhaustive exercise induces the decrease of cerebral function and that the fatigue resulting from dynamic exercise decreases the cerebral cortex activity.
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Affiliation(s)
- K Shibuya
- Graduate School of Human-Environment Studies, Kyushu University, Fukuoka, Japan.
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Murai S, Aya T, Sonoda N. Synthesis via silyl alkenyl ethers. IV. Synthesis of 1-hydroxybicyclo[n.1.0]alkanes from silyl alkenyl ethers. Novel class of cyclopropanols. J Org Chem 2002. [DOI: 10.1021/jo00964a037] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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