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Kawaguchi K, Kuroda K, Zhao Z, Tani S, Harasawa A, Fukushima Y, Tanaka H, Noguchi R, Iimori T, Yaji K, Fujisawa M, Shin S, Komori F, Kobayashi Y, Kondo T. Time-, spin-, and angle-resolved photoemission spectroscopy with a 1-MHz 10.7-eV pulse laser. Rev Sci Instrum 2023; 94:083902. [PMID: 37540119 DOI: 10.1063/5.0151859] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 07/05/2023] [Indexed: 08/05/2023]
Abstract
We describe a setup of time-, spin-, and angle-resolved photoemission spectroscopy (tr-SARPES) employing a 10.7 eV (λ = 115.6 nm) pulse laser at a 1 MHz repetition rate as a probe photon source. This equipment effectively combines the technologies of a high-power Yb:fiber laser, ultraviolet-driven harmonic generation in Xe gas, and a SARPES apparatus equipped with very-low-energy-electron-diffraction spin detectors. A high repetition rate (1 MHz) of the probe laser allows experiments with the photoemission space-charge effects significantly reduced, despite a high flux of 1013 photons/s on the sample. The relatively high photon energy (10.7 eV) also brings the capability of observing a wide momentum range that covers the entire Brillouin zone of many materials while ensuring high momentum resolution. The experimental setup overcomes the low efficiency of spin-resolved measurements, which gets even more severe for the pump-probed unoccupied states, and affords the opportunity to investigate ultrafast electron and spin dynamics of modern quantum materials with energy and time resolutions of 25 meV and 360 fs, respectively.
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Affiliation(s)
- Kaishu Kawaguchi
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Kenta Kuroda
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan
- International Institute for Sustainability with Knotted Chiral Meta Matter (WPI-SKCM2), Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Z Zhao
- School of Information Science and Engineering, Shandong University, Qingdao 266237, China
| | - S Tani
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - A Harasawa
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Y Fukushima
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - H Tanaka
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - R Noguchi
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - T Iimori
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - K Yaji
- Center for Basic Research on Materials, National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0003, Japan
| | - M Fujisawa
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - S Shin
- Office of University Professor, The University of Tokyo, Chiba 277-8581, Japan
| | - F Komori
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Y Kobayashi
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Takeshi Kondo
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
- Trans-Scale Quantum Science Institute, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
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Doi K, Mizuno J, Ohara Y, Tani S. Comparison of the Degree of Expanded Spinal Canal Area between the Hinge-Side Area and the Open-Side Area in Cervical Open-Door Laminoplasty. Neurol India 2023; 71:689-692. [PMID: 37635499 DOI: 10.4103/0028-3886.383874] [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] [Indexed: 08/29/2023]
Abstract
Background There have been reports on the significant canal cross-sectional area (CSA) expansion difference between pre- and post-operation, but no comparison of CSA expansion between the hinge-side area (Area H) and the open-side area (Area O) has been reported. This study aimed to measure the spinal CSA expansion between Area H and Area O retrospectively after open-door laminoplasty using new titanium spacers and evaluated this common decompression procedure's effectiveness. Materials and Methods This study included 27 patients diagnosed with cervical spondylotic radiculopathy or myelopathy, ossification of the posterior longitudinal ligament, and developmental canal stenosis from February 2021 to October 2022. The CSA difference between pre- and post-cervical laminoplasty (C4-C6 levels) was measured with cervical transverse computed tomography scan images. The CSA difference in Area H and Area O between pre- and post-laminoplasty was similarly calculated. Results The spinal canal areas of each segment after open-door laminoplasty were significantly enlarged (P < 0.05). Area O was also significantly enlarged compared to that of Area H (P < 0.05). Conclusion Area O was more enlarged than Area H, and both sides were statistically enlarged after open-door laminoplasty.
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Affiliation(s)
- Kazuma Doi
- Center for Minimally Invasive Spinal Surgery, Shin Yurigaoka General Hospital, Kawasaki, Kanagawa, Japan
| | - Junichi Mizuno
- Center for Minimally Invasive Spinal Surgery, Shin Yurigaoka General Hospital, Kawasaki, Kanagawa, Japan
| | - Yukoh Ohara
- Center for Minimally Invasive Spinal Surgery, Shin Yurigaoka General Hospital, Kawasaki, Kanagawa; Department of Neurosurgery, Juntendo University School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Satoshi Tani
- Center for Minimally Invasive Spinal Surgery, Shin Yurigaoka General Hospital, Kawasaki, Kanagawa, Japan
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Doi K, Tani S, Okazaki T, Mizuno J. Risk Factors of Subsidence after Anterior Cervical Discectomy and Fusion with Double Cylindrical Cages for Cervical Degenerative Diseases: Minimum Two-year Follow-up Results. Neurol Med Chir (Tokyo) 2023. [PMID: 37019651 DOI: 10.2176/jns-nmc.2022-0325] [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: 04/07/2023] Open
Abstract
Cylindrical cages were known to cause subsidence after anterior cervical discectomy and fusion (ACDF); hence, they were gradually replaced by box-shaped cages. However, this phenomenon has been inconclusive due to limited information and short-term results. Therefore, this study aimed to clarify risk factors for subsidence after ACDF using titanium double cylindrical cages with mid-term follow-up periods. This retrospective study included 49 patients (76 segments) diagnosed with cervical radiculopathy or myelopathy caused by disc herniation, spondylosis, and ossification of the posterior longitudinal ligament. These patients underwent ACDF using these cages from January 2016 to March 2020 in a single institution. Patient demographics and neurological outcomes were also examined. Subsidence was defined as a ≥3-mm segmental disc height decrease at the final follow-up lateral X-ray compared to that on the next day postoperatively. Subsidence occurred in 26 of 76 segments (34.7%) within the follow-up periods of approximately three years. Multivariate analysis using a logistic regression model demonstrated that multilevel surgery was significantly associated with subsidence. The majority of patients achieved good clinical outcomes based on the Odom criteria. This study demonstrated that multilevel surgery was the only risk factor of subsidence post-ACDF with double cylindrical cages. Despite the relatively high subsidence rates, the clinical outcome was almost good at least during the mid-term period.
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Affiliation(s)
- Kazuma Doi
- Center for Minimally Invasive Spinal Surgery, Shin Yurigaoka General Hospital
| | - Satoshi Tani
- Center for Minimally Invasive Spinal Surgery, Shin Yurigaoka General Hospital
| | | | - Junichi Mizuno
- Center for Minimally Invasive Spinal Surgery, Shin Yurigaoka General Hospital
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Ohashi H, Kawamura D, Hatano K, Ohashi S, Tochigi S, Isoshima A, Nagashima H, Otani K, Karagiozov K, Tani S, Murayama Y. Intraoperative Cone-Beam Computed Tomography Assessment of Spinal Pedicle Screws Placement Precision Is in Full Agreement with Postoperative Computed Tomography Assessment. World Neurosurg 2023:S1878-8750(23)00385-6. [PMID: 36966912 DOI: 10.1016/j.wneu.2023.03.062] [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: 10/23/2022] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 04/30/2023]
Abstract
OBJECTIVE To assess agreement between pedicle screw placement evaluated on postoperative computed tomography (CT) and on intraoperative cone-beam CT (CBCT) and compare procedure characteristics when using first-generation and second-generation robotic C-arm systems in the hybrid operating room. METHODS All patients who received pedicle screws for spinal fusion at our institution between June 2009 and September 2019 and underwent intraoperative CBCT and postoperative CT were included. The CBCT and CT images were reviewed by 2 surgeons to assess the screw placement using the Gertzbein-Robbins and the Heary classifications. Intermethod agreement of screw placement classifications as well as interrater agreement were assessed using Brennan-Prediger and Gwet agreement coefficients. Procedure characteristics using first-generation and second-generation generation robotic C-arm systems were compared. RESULTS Fifty-seven patients were treated with 315 pedicle screws at thoracic, lumbar, and sacral levels. No screw had to be repositioned. On CBCT, accurate placement was found for 309 screws (98.1%) using the Gertzbein-Robbins classification and 289 (91.7%) using the Heary classification and on CT, these were 307 (97.4%) and 293 (93.0%), respectively. Intermethod between CBCT and CT and interrater agreements between the 2 raters were almost perfect (>0.90) for all assessment. There were no significant differences in mean radiation dose (P = 0.83) and fluoroscopy time (P = 0.82), but length of surgery using the second-generation system was estimated at 107.7 minutes (95% confidence interval, 31.9-183.5 minutes; P = 0.006) shorter. CONCLUSIONS Intraoperative CBCT provides accurate assessment of pedicle screw placement and enables intraoperative repositioning of misplaced screws.
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Affiliation(s)
- Hiroki Ohashi
- Department of Neurosurgery, Jikei University School of Medicine, Minato-ku, Tokyo, Japan.
| | - Daichi Kawamura
- Department of Neurosurgery, Jikei University School of Medicine Kashiwa Hospital, Kashiwa, Chiba, Japan
| | - Keisuke Hatano
- Department of Neurosurgery, Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - So Ohashi
- Department of Neurosurgery, Jikei University School of Medicine Kashiwa Hospital, Kashiwa, Chiba, Japan
| | - Satoru Tochigi
- Department of Neurosurgery, Jikei University School of Medicine Kashiwa Hospital, Kashiwa, Chiba, Japan
| | - Akira Isoshima
- Department of Neurosurgery, Omori Red Cross Hospital, Ota-ku, Tokyo, Japan
| | - Hiroyasu Nagashima
- Department of Neurosurgery, Jikei University School of Medicine Katsushika Medical Center, Katsushika-ku, Tokyo, Japan
| | - Katharina Otani
- Siemens Healthcare K.K., AT Innovation Department, Gate City Osaki West Tower, Shinagawa-ku, Tokyo, Japan
| | - Kostadin Karagiozov
- Department of Neurosurgery, Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Satoshi Tani
- Department of Neurosurgery, Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Yuichi Murayama
- Department of Neurosurgery, Jikei University School of Medicine, Minato-ku, Tokyo, Japan
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Takami T, Hara T, Hara M, Inui T, Ito K, Koyanagi I, Mizuno J, Mizuno M, Nakase H, Shimokawa N, Sugawara T, Suzuki S, Takahashi T, Takayasu M, Tani S, Hida K, Kim P, Arai H. Safety and Validity of Anterior Cervical Disc Replacement for Single-level Cervical Disc Disease: Initial Two-year Follow-up of the Prospective Observational Post-marketing Surveillance Study for Japanese Patients. Neurol Med Chir (Tokyo) 2022; 62:489-501. [PMID: 36223947 PMCID: PMC9726179 DOI: 10.2176/jns-nmc.2022-0148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 05/02/2022] [Accepted: 07/14/2022] [Indexed: 11/29/2023] Open
Abstract
Anterior cervical disc replacement (ACDR) using cervical artificial disc (CAD) has the advantage of maintaining the range of motion (ROM) at the surgical level, subsequently reducing the postoperative risk of adjacent disc disease. Following the approval for the clinical use in Japan, a post-marketing surveillance (PMS) study was conducted for two different types of CAD, namely, Mobi-C (metal-on-plastic design) and Prestige LP (metal-on-metal design). The objective of this prospective observational multicenter study was to analyze the first 2-year surgical results of the PMS study of 1-level ACDR in Japan. A total of 54 patients were registered (Mobi-C, n = 24, MC group; Prestige LP, n = 30, PLP group). Preoperative neurological assessment revealed radiculopathy in 31 patients (57.4%) and myelopathy in 15 patients (27.8%). Preoperative radiological assessment classified the disease category as disc herniation in 15 patients (27.8%), osteophyte in 6 patients (11.1%), and both in 33 patients (61.1%). The postoperative follow-up rates at 6 weeks, 6 months, 1 year, and 2 years after ACDR were 92.6%, 87.0%, 83.3%, and 79.6%, respectively. In both groups, patients' neurological condition improved significantly after surgery. Radiographic assessment revealed loss of mobility at the surgical level in 9.5% of patients in the MC group and in 9.1% of patients in the PLP group. No secondary surgeries at the initial surgical level and no serious adverse events were observed in either group. The present results suggest that 1-level ACDR is safe, although medium- to long-term follow-up is mandatory to further verify the validity of ACDR for Japanese patients.
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Affiliation(s)
- Toshihiro Takami
- Department of Neurosurgery, Osaka Medical and Pharmaceutical University
| | | | - Masahito Hara
- Department of Neurosurgery, Aichi Medical University
| | | | - Kiyoshi Ito
- Department of Neurosurgery, Shinshu University School of Medicine
| | - Izumi Koyanagi
- Department of Neurosurgery, Hokkaido Neurosurgical Memorial Hospital
| | - Junichi Mizuno
- Department of Minimally Invasive Spine Surgery Center, Shin-yurigaoka General Hospital
| | | | | | | | - Taku Sugawara
- Department of Spinal Surgery, Akita Cerebrospinal and Cardiovascular Center
| | - Shinsuke Suzuki
- Department of Spinal Surgery, Sendai East Neurosurgical Hospital
| | | | | | - Satoshi Tani
- Department of Minimally Invasive Spine Surgery Center, Shin-yurigaoka General Hospital
| | - Kazutoshi Hida
- Department of Neurosurgery, Sapporo Azabu Neurosurgical Hospital
| | - Phyo Kim
- Neurologic Surgery, Symphony Clinic
| | - Hajime Arai
- Department of Neurosurgery, Juntendo University
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Torkington J, Harries R, O'Connell S, Knight L, Islam S, Bashir N, Watkins A, Fegan G, Cornish J, Rees B, Cole H, Jarvis H, Jones S, Russell I, Bosanquet D, Cleves A, Sewell B, Farr A, Zbrzyzna N, Fiera N, Ellis-Owen R, Hilton Z, Parry C, Bradbury A, Wall P, Hill J, Winter D, Cocks K, Harris D, Hilton J, Vakis S, Hanratty D, Rajagopal R, Akbar F, Ben-Sassi A, Francis N, Jones L, Williamson M, Lindsey I, West R, Smart C, Ziprin P, Agarwal T, Faulkner G, Pinkney T, Vimalachandran D, Lawes D, Faiz O, Nisar P, Smart N, Wilson T, Myers A, Lund J, Smolarek S, Acheson A, Horwood J, Ansell J, Phillips S, Davies M, Davies L, Bird S, Palmer N, Williams M, Galanopoulos G, Rao PD, Jones D, Barnett R, Tate S, Wheat J, Patel N, Rahmani S, Toynton E, Smith L, Reeves N, Kealaher E, Williams G, Sekaran C, Evans M, Beynon J, Egan R, Qasem E, Khot U, Ather S, Mummigati P, Taylor G, Williamson J, Lim J, Powell A, Nageswaran H, Williams A, Padmanabhan J, Phillips K, Ford T, Edwards J, Varney N, Hicks L, Greenway C, Chesters K, Jones H, Blake P, Brown C, Roche L, Jones D, Feeney M, Shah P, Rutter C, McGrath C, Curtis N, Pippard L, Perry J, Allison J, Ockrim J, Dalton R, Allison A, Rendell J, Howard L, Beesley K, Dennison G, Burton J, Bowen G, Duberley S, Richards L, Giles J, Katebe J, Dalton S, Wood J, Courtney E, Hompes R, Poole A, Ward S, Wilkinson L, Hardstaff L, Bogden M, Al-Rashedy M, Fensom C, Lunt N, McCurrie M, Peacock R, Malik K, Burns H, Townley B, Hill P, Sadat M, Khan U, Wignall C, Murati D, Dhanaratne M, Quaid S, Gurram S, Smith D, Harris P, Pollard J, DiBenedetto G, Chadwick J, Hull R, Bach S, Morton D, Hollier K, Hardy V, Ghods M, Tyrrell D, Ashraf S, Glasbey J, Ashraf M, Garner S, Whitehouse A, Yeung D, Mohamed SN, Wilkin R, Suggett N, Lee C, Bagul A, McNeill C, Eardley N, Mahapatra R, Gabriel C, Datt P, Mahmud S, Daniels I, McDermott F, Nodolsk M, Park L, Scott H, Trickett J, Bearn P, Trivedi P, Frost V, Gray C, Croft M, Beral D, Osborne J, Pugh R, Herdman G, George R, Howell AM, Al-Shahaby S, Narendrakumar B, Mohsen Y, Ijaz S, Nasseri M, Herrod P, Brear T, Reilly JJ, Sohal A, Otieno C, Lai W, Coleman M, Platt E, Patrick A, Pitman C, Balasubramanya S, Dickson E, Warman R, Newton C, Tani S, Simpson J, Banerjee A, Siddika A, Campion D, Humes D, Randhawa N, Saunders J, Bharathan B, Hay O. Incisional hernia following colorectal cancer surgery according to suture technique: Hughes Abdominal Repair Randomized Trial (HART). Br J Surg 2022; 109:943-950. [PMID: 35979802 PMCID: PMC10364691 DOI: 10.1093/bjs/znac198] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/09/2022] [Accepted: 05/13/2022] [Indexed: 11/14/2022]
Abstract
BACKGROUND Incisional hernias cause morbidity and may require further surgery. HART (Hughes Abdominal Repair Trial) assessed the effect of an alternative suture method on the incidence of incisional hernia following colorectal cancer surgery. METHODS A pragmatic multicentre single-blind RCT allocated patients undergoing midline incision for colorectal cancer to either Hughes closure (double far-near-near-far sutures of 1 nylon suture at 2-cm intervals along the fascia combined with conventional mass closure) or the surgeon's standard closure. The primary outcome was the incidence of incisional hernia at 1 year assessed by clinical examination. An intention-to-treat analysis was performed. RESULTS Between August 2014 and February 2018, 802 patients were randomized to either Hughes closure (401) or the standard mass closure group (401). At 1 year after surgery, 672 patients (83.7 per cent) were included in the primary outcome analysis; 50 of 339 patients (14.8 per cent) in the Hughes group and 57 of 333 (17.1 per cent) in the standard closure group had incisional hernia (OR 0.84, 95 per cent c.i. 0.55 to 1.27; P = 0.402). At 2 years, 78 patients (28.7 per cent) in the Hughes repair group and 84 (31.8 per cent) in the standard closure group had incisional hernia (OR 0.86, 0.59 to 1.25; P = 0.429). Adverse events were similar in the two groups, apart from the rate of surgical-site infection, which was higher in the Hughes group (13.2 versus 7.7 per cent; OR 1.82, 1.14 to 2.91; P = 0.011). CONCLUSION The incidence of incisional hernia after colorectal cancer surgery is high. There was no statistical difference in incidence between Hughes closure and mass closure at 1 or 2 years. REGISTRATION NUMBER ISRCTN25616490 (http://www.controlled-trials.com).
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Okazaki T, Ohara Y, Matsuoka H, Shimoji K, Kogure K, Kikuchi N, Kimura T, Nakajima S, Tani S, Mizuno J, Arai H, Oishi H. Cervical Extradural Arteriovenous Fistula without Intradural Drainage Successfully Treated with Endovascular Treatment Using Both Transvenous and Transarterial Approach: Case Report and Review of Literatures. NMC Case Rep J 2022; 8:335-342. [PMID: 35079485 PMCID: PMC8769398 DOI: 10.2176/nmccrj.cr.2020-0260] [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] [Received: 07/23/2020] [Accepted: 10/21/2020] [Indexed: 11/20/2022] Open
Abstract
The classification of spinal extradural arteriovenous fistulas (AVFs) was reported based on a case series treated by microsurgery in 2009 and endovascular interventions in 2011. The present report describes a patient with extradural AVFs at the cervical spine manifesting gradual progressive radiculomyelopathy of bilateral upper extremities. Magnetic resonance imaging (MRI) revealed a mass sign from C1 to C4 at the right ventral side and the spinal cord was deviated to the left and indicated as a flow void sign. Diagnostic angiography revealed an extradural AVFs located at the C1-C4 level that was supplied by bilateral radicular artery from the vertebral artery (VA) and right ascending cervical artery (ACA). The shunting points were recognized multiply at C2/3 and C3/4 levels on the right. The transvenous embolization to the enlarged extradural venous plexus around the shunting points via right hypoglossal canal and the transarterial embolization against multi-feeders of the branch of left radicular artery, right ACA achieved complete occlusion of the lesions. His symptom was gradually recovered, and angiography performed 2 weeks after embolization showed no recurrence. When the arteriovenous shunts in the upper cervical spine were high flow shunts, transvenous approach via the hypoglossal canal might be one option for the treatment of spinal extradural AVFs.
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Affiliation(s)
- Toshiyuki Okazaki
- Center for Minimally Invasive Spinal Surgery, Shin-yurigaoka General Hospital, Kawasaki, Kanagawa, Japan
| | - Yukoh Ohara
- Center for Minimally Invasive Spinal Surgery, Shin-yurigaoka General Hospital, Kawasaki, Kanagawa, Japan.,Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Hidenori Matsuoka
- Center for Minimally Invasive Spinal Surgery, Shin-yurigaoka General Hospital, Kawasaki, Kanagawa, Japan
| | - Kazuaki Shimoji
- Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Kazunari Kogure
- Center for Minimally Invasive Spinal Surgery, Shin-yurigaoka General Hospital, Kawasaki, Kanagawa, Japan
| | - Nahoko Kikuchi
- Center for Minimally Invasive Spinal Surgery, Shin-yurigaoka General Hospital, Kawasaki, Kanagawa, Japan
| | - Takaoki Kimura
- Center for Minimally Invasive Spinal Surgery, Shin-yurigaoka General Hospital, Kawasaki, Kanagawa, Japan
| | - Shintaro Nakajima
- Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Satoshi Tani
- Center for Minimally Invasive Spinal Surgery, Shin-yurigaoka General Hospital, Kawasaki, Kanagawa, Japan
| | - Junichi Mizuno
- Center for Minimally Invasive Spinal Surgery, Shin-yurigaoka General Hospital, Kawasaki, Kanagawa, Japan
| | - Hajime Arai
- Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Hidenori Oishi
- Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
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Kato N, Terao T, Ishii T, Saito E, Hirokawa Y, Michishita S, Sasaki Y, Tani S, Murayama Y. Subclavian Artery Flow Dynamics Evaluated by Analytical Intraoperative Indocyanine Green Videoangiography During Surgical Treatment of Thoracic Outlet Syndrome: A Case Series. Oper Neurosurg (Hagerstown) 2022; 22:115-122. [PMID: 34989707 DOI: 10.1227/ons.0000000000000077] [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] [Received: 08/01/2021] [Accepted: 09/29/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Indocyanine green (ICG) videoangiography is rarely used during the surgical treatment of thoracic outlet syndrome (TOS). OBJECTIVE To evaluate subclavian artery (SA) flow dynamics using the analytical ICG videoangiography during TOS surgeries. METHODS We examined patients with neurogenic TOS who received surgical treatment and whose SA blood flow at the interscalene space was evaluated using ICG videoangiography equipped with an analytical function (FLOW800). Anterior scalenectomy with or without middle scalenectomy and first rib resection were conducted for decompression of the brachial plexus. ICG videoangiography was performed before and after decompression of the brachial plexus. After acquisition of grayscale and color-coded maps, a region of interest was placed in the SA to obtain time-intensity diagrams. Maximum intensity (MI), rise time (RT), and blood flow index (BFi) were calculated from the diagram, in arbitrary intensity (AI) units. We compared values before and after decompression. Comparisons of the three parameters before and after decompression were assessed statistically using the paired t-tests and Wilcoxon signed-rank test. RESULTS We evaluated nine procedures in consecutively presenting patients. The observed mean values of MI, RT, and BFi before decompression were 174.1 ± 61.5 AI, 5.2 ± 1.1 s, and 35.2 ± 13.5 AI/s, respectively, and the observed mean values of MI, RT, and BFi after decompression were 299.3 ± 167.4 AI, 6.6 ± 0.8 s, and 44.6 ± 28.3 AI/s, respectively. These parameters showed higher values after decompression than before decompression, and the increase in MI and RT was statistically significant (P < .05). CONCLUSION ICG videoangiography allows semiquantitative evaluation of hemodynamic changes during TOS surgery. A marked decrease in the velocity of SA flow was observed after decompression.
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Affiliation(s)
- Naoki Kato
- Department of Neurosurgery, Atsugi City Hospital, Kanagawa, Japan.,Department of Neurosurgery, The Jikei University School of Medicine Tokyo, Tokyo, Japan
| | - Tohru Terao
- Department of Neurosurgery, Atsugi City Hospital, Kanagawa, Japan
| | - Takuya Ishii
- Department of Neurosurgery, Atsugi City Hospital, Kanagawa, Japan.,Department of Neurosurgery, The Jikei University Daisan Hospital, Tokyo, Japan
| | - Emiko Saito
- Department of Neurosurgery, Atsugi City Hospital, Kanagawa, Japan
| | - Yusuke Hirokawa
- Department of Neurosurgery, Atsugi City Hospital, Kanagawa, Japan
| | | | - Yuichi Sasaki
- Department of Neurosurgery, Atsugi City Hospital, Kanagawa, Japan.,Department of Neurosurgery, The Jikei University School of Medicine Tokyo, Tokyo, Japan
| | - Satoshi Tani
- Department of Neurosurgery, The Jikei University School of Medicine Tokyo, Tokyo, Japan
| | - Yuichi Murayama
- Department of Neurosurgery, The Jikei University School of Medicine Tokyo, Tokyo, Japan
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Morita K, Ohashi H, Kawamura D, Tani S, Karagiozov K, Murayama Y. Cervical lateral mass screw length analysis in men versus women. Clin Anat 2021; 35:454-460. [PMID: 34837269 DOI: 10.1002/ca.23812] [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: 09/24/2021] [Revised: 11/17/2021] [Accepted: 11/22/2021] [Indexed: 11/08/2022]
Abstract
Posterior fixations with lateral mass screws have become popular. The Roy-Camille and the Magerl techniques have been established and screw length was identified as a particularly important element. Sex and ethnicity are significant factors in cervical spine morphology, but few studies have been performed for screw length. We performed measurements using computed tomography (CT) images of adult patients hospitalized for surgery of the cervical spine, with targeted 3D data analysis. The final number of patients was 47 (33 men, 14 women) and 235 vertebrae. With the Roy-Camille technique, the screw length was longest at C3 (men: 13.0 mm ± 1.9 mm, women: 13.0 mm ± 1.9 mm) and smallest at C7 (men: 10.8 mm ± 1.8 mm, women: 9.4 mm ± 1.2 mm). With the Magerl technique, the screw length was smallest at C3 (men: 14.8 mm ± 1.6 mm, women: 14.3 mm ± 1.6 mm) and longest at C7 for men (16.8 mm ± 2.8 mm), and at C6 for women (15.4 mm ± 3.0 mm). To differ from spinal canal or pedicle, cervical lateral mass showed no obvious morphological differences from that of subjects of other ethnicity. The placement of a standard lateral mass screw would not cause complications in Japanese patients, even with the use of devices designed in North America or Europe. However, the anatomical background is essential because it is important to optimize the selection for each patient to avoid complications considering sex and individual differences.
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Affiliation(s)
- Kohei Morita
- The Department of Neurosurgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroki Ohashi
- The Department of Neurosurgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Daichi Kawamura
- The Department of Neurosurgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Satoshi Tani
- The Department of Neurosurgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Kostadin Karagiozov
- The Department of Neurosurgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Yuichi Murayama
- The Department of Neurosurgery, The Jikei University School of Medicine, Tokyo, Japan
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Takao H, Watanabe D, Tani S, Ohashi H, Ishibashi T, Takeshita K, Murakami S, Nishimoto T, Yuge K, Karagiozov K, Abe T, Murayama Y. Use of a Simulation Model to Investigate the Mechanisms of Sports-related Head Injuries. Neurol Med Chir (Tokyo) 2021; 62:13-18. [PMID: 34645717 PMCID: PMC8754681 DOI: 10.2176/nmc.oa.2021-0149] [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: 11/20/2022] Open
Abstract
A simulation model was developed to better understand the mechanisms of brain injuries in sports. A three-dimensional model comprising approximately 1.22 million elements was constructed from cranial computed tomography images of adult male volunteers by the voxel method. To simulate contact sports that permit actions such as tackling, a sinusoidal wave with duration of 10 ms and maximum acceleration of 2000 m/s2 was applied to the lowest point of the model to apply rotational acceleration to the head from different directions. The von Mises stress was then observed at five points in the coronal plane of the brain: cingulate gyrus (CG), corpus callosum (CC), brain stem (BS), lateral temporal lobe (LT), and medial temporal lobe (MT). LS-DYNA universal finite element analysis software with explicit time integration was used for the analysis. Concentrations of stress started to appear in the CC and BS at 10 ms post-impact, after which they also became evident in the CG and MT. The maximum changes in stress at each location occurred 10–15 ms post-impact. The von Mises stress was 9–14 kPa in the CG, 8–24 kPa in the CC, 12–24 kPa in the BS, 7–12 kPa in the LT, and 12–18 kPa in the MT. The highest stress in every part of the brain occurred after lateral impact, followed by oblique impact and sagittal impact. Such simulations may help elucidate the mechanisms of brain injuries in sports and help develop measures to prevent chronic traumatic encephalopathy.
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Affiliation(s)
- Hiroyuki Takao
- Department of Neurosurgery, The Jikei University School of Medicine.,Department of Innovation for Medical Information Technology, The Jikei University School of Medicine
| | - Dai Watanabe
- Department of Systems Engineering and Science, Shibaura Institute of Technology
| | - Satoshi Tani
- Department of Neurosurgery, The Jikei University School of Medicine
| | - Hiroki Ohashi
- Department of Neurosurgery, The Jikei University School of Medicine
| | | | - Kohei Takeshita
- Department of Innovation for Medical Information Technology, The Jikei University School of Medicine
| | | | - Tetsuya Nishimoto
- Biomechanics Research Unit, College of Engineering, Nihon University
| | - Kohei Yuge
- Faculty of Science and Technology, Seikei University
| | | | - Toshiaki Abe
- Department of Neurosurgery, The Jikei University School of Medicine
| | - Yuichi Murayama
- Department of Neurosurgery, The Jikei University School of Medicine
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11
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Hatano K, Ohashi H, Kawamura D, Isoshima A, Nagashima H, Tochigi S, Ohashi S, Takei J, Teshigawara A, Tani S, Murayama Y, Abe T. MRI characteristics of syringomyelia associated with foramen magnum arachnoiditis: differentiation from Chiari malformation. Acta Neurochir (Wien) 2021; 163:1593-1601. [PMID: 33881607 DOI: 10.1007/s00701-021-04845-9] [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: 03/11/2021] [Accepted: 04/08/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND It is important to distinguish foramen magnum arachnoiditis (FMA) from Chiari malformation (CM) before surgery because the operative strategies for these diseases differ. In the current study, we compared pretreatment magnetic resonance imaging (MRI) of FMA with CM and investigated the MRI findings useful to differentiate between these diseases. METHODS We retrospectively reviewed patients with FMA or CM aged ≥ 18 years who underwent surgeries at our institution between 2007 and 2019. The morphologies of the syrinx, neural elements, and posterior cranial fossa were preoperatively evaluated with MRI. We used the receiver operating characteristic (ROC) curve for the fourth ventricle-to-syrinx distance (FVSD). RESULTS Ten patients with FMAs and 179 with CMs were included. FVSD in the FMA group was significantly shorter than that in the CM group (7.5 mm [IQR, 2.8-10 mm] in FMA vs. 29.9 mm [IQR, 16.3-52.9 mm] in CM, p < 0.0001). The other MRI findings that showed the height, size, and length of the syrinx; size of the foramen magnum; degree of cerebellar tonsillar descent; shape of the cerebellar tonsil; and dorsal subarachnoid space at the foramen magnum differed significantly between the two groups. The ROC curve analysis showed that patients whose FVSD was less than 11 mm could be diagnosed with FMA with a specificity of 90% and sensitivity of 96%. CONCLUSIONS A more cranial syrinx development (FVSD < 11 mm) appears to be the characteristic MRI finding in FMA.
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Affiliation(s)
- Keisuke Hatano
- Department of Neurosurgery, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan.
| | - Hiroki Ohashi
- Department of Neurosurgery, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Daichi Kawamura
- Department of Neurosurgery, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Akira Isoshima
- Department of Neurosurgery, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
- Department of Neurosurgery, Omori Red Cross Hospital, 4-30-1 Chuo, Ota-ku, Tokyo, 143-8527, Japan
| | - Hiroyasu Nagashima
- Department of Neurosurgery, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
- Department of Neurosurgery, The Jikei University Katsushika Medical Center, 6-41-2 Aoto, Katsushika-ku, Tokyo, 125-8506, Japan
| | - Satoru Tochigi
- Department of Neurosurgery, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
- Department of Neurosurgery, The Jikei University Kashiwa Hospital, 163-1 Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan
| | - So Ohashi
- Department of Neurosurgery, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
- Department of Neurosurgery, Kawasaki Saiwai Hospital, 31-27 Omiyacho, Kawasaki-shi Saiwai-ku, Kanagawa, 212-0014, Japan
| | - Jun Takei
- Department of Neurosurgery, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Akihiko Teshigawara
- Department of Neurosurgery, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
- Department of Neurosurgery, The Jikei University Kashiwa Hospital, 163-1 Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Satoshi Tani
- Department of Neurosurgery, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Yuichi Murayama
- Department of Neurosurgery, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Toshiaki Abe
- Department of Neurosurgery, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
- Department of Neurosurgery, Mishima Central Hospital, 1-3 Midoricho, Mishima-shi, Shizuoka, 411-0848, Japan
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Morita K, Ohashi H, Kawamura D, Tani S, Karagiozov K, Murayama Y. Thoracic and lumbar spine pedicle morphology in Japanese patients. Surg Radiol Anat 2021; 43:833-842. [PMID: 33591391 DOI: 10.1007/s00276-021-02707-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 11/10/2020] [Accepted: 02/03/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE Pedicle morphology is important for intraoperative surgical anatomy and to define pedicle screw design and parameters. However, differences of pedicle size according to ethnicity and gender are not well studied. The purpose of this study is to investigate morphological characteristics of the pedicle in Japanese patients for determining adequate screw size and optimal surgical planning. METHODS We investigated thoracic and lumbar pedicle morphology in Japanese patients using computed tomography (CT) measurements and analyzed the standard size of pedicles on upper thoracic to lumbar spine CT images in 227 Japanese patients. RESULTS Gender had a larger impact on the shape and size of pedicles than racial differences. In the distribution of pedicle width, we calculated the ratio of values less than 4.5 mm, that in females resulted to be over 30% for the Th3-Th9 segment, and particularly high, above 60% at Th4 and Th5. CONCLUSION Our measurement analysis showed that pedicle morphological parameters in Japanese patients showed tendency to be smaller to those found in other studies, and particularly in female patients, they were statistically significantly smaller. Adequate transpedicular instrumentation for Japanese patients will require smaller size pedicle-related devices that will match our anatomical findings to achieve safe device placement. In addition, serving ethnically non-homogenous patient population can require further to spinal morphometric for precise device selection.
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Affiliation(s)
- Kohei Morita
- Department of Neurosurgery, The Jikei University School of Medicine, Nishi-Shinbashi 3-25-8, Minato-ku, Tokyo, 105-8461, Japan.
| | - Hiroki Ohashi
- Department of Neurosurgery, The Jikei University School of Medicine, Nishi-Shinbashi 3-25-8, Minato-ku, Tokyo, 105-8461, Japan
| | - Daichi Kawamura
- Department of Neurosurgery, The Jikei University School of Medicine, Nishi-Shinbashi 3-25-8, Minato-ku, Tokyo, 105-8461, Japan
| | - Satoshi Tani
- Department of Neurosurgery, The Jikei University School of Medicine, Nishi-Shinbashi 3-25-8, Minato-ku, Tokyo, 105-8461, Japan
| | - Kostadin Karagiozov
- Department of Neurosurgery, The Jikei University School of Medicine, Nishi-Shinbashi 3-25-8, Minato-ku, Tokyo, 105-8461, Japan
| | - Yuichi Murayama
- Department of Neurosurgery, The Jikei University School of Medicine, Nishi-Shinbashi 3-25-8, Minato-ku, Tokyo, 105-8461, Japan
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Sasaki Y, Terao T, Saito E, Ohara K, Michishita S, Kato N, Tani S, Murayama Y. Clinical predictors of surgical outcomes of severe carpal tunnel syndrome patients: utility of palmar stimulation in a nerve conduction study. BMC Musculoskelet Disord 2020; 21:725. [PMID: 33160354 PMCID: PMC7648948 DOI: 10.1186/s12891-020-03750-z] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 10/28/2020] [Indexed: 12/26/2022] Open
Abstract
Background Carpal tunnel syndrome is a common peripheral nerve compression disorder. However, there is no established opinion regarding the predictors of symptom improvement after surgery. This study aimed to identify the predictors of surgical outcomes of severe carpal tunnel syndrome patients. Methods In the patients who underwent a carpal tunnel syndrome surgery, we selected the patients who had a preoperative Bland’s classification of grade 5 or 6, and assessed for the changes in Bland’s classification grade before and after surgery. Those who showed improvement from preoperative grades 5–6 to postoperative grades 1–4 comprised the improvement group. In contrast, those who did not show improvement and had postoperative grades 5 or 6 comprised the non-improvement group. In a nerve conduction study, amplitudes of the compound muscle action potential and sensory nerve action potential of the palms were assessed between the improvement and non-improvement groups. Results Among the 60 hands of 46 patients who had a preoperative Bland’s classification of grade 5 or 6, 49 hands of 37 patients comprised the improvement group, and 11 hands of 9 patients comprised the non-improvement group. The amplitudes of the compound muscle action potential and sensory nerve action potential of the palms before surgery were significantly higher in the improvement group. The degree of improvement in Bland’s classification grade was correlated with the degree of clinical symptom improvement. Conclusions Amplitudes of compound muscle action potential and sensory nerve action potential before surgery induced by palmar stimulation can predict improvements in nerve conduction study scores and clinical findings after surgical treatment.
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Affiliation(s)
- Yuichi Sasaki
- Department of Neurosurgery, Atsugi City Hospital, 1-16-36 Mizuhiki, Atsugi-shi, Kanagawa, 243-8588, Japan.
| | - Tohru Terao
- Department of Neurosurgery, Atsugi City Hospital, 1-16-36 Mizuhiki, Atsugi-shi, Kanagawa, 243-8588, Japan
| | - Emiko Saito
- Department of Neurosurgery, Atsugi City Hospital, 1-16-36 Mizuhiki, Atsugi-shi, Kanagawa, 243-8588, Japan
| | - Keiichiro Ohara
- Department of Neurosurgery, Atsugi City Hospital, 1-16-36 Mizuhiki, Atsugi-shi, Kanagawa, 243-8588, Japan
| | - Shotaro Michishita
- Department of Neurosurgery, Atsugi City Hospital, 1-16-36 Mizuhiki, Atsugi-shi, Kanagawa, 243-8588, Japan
| | - Naoki Kato
- Department of Neurosurgery, The Jikei University Hospital, Tokyo, Japan
| | - Satoshi Tani
- Department of Neurosurgery, The Jikei University Hospital, Tokyo, Japan
| | - Yuichi Murayama
- Department of Neurosurgery, The Jikei University Hospital, Tokyo, Japan
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Arikawa T, Hiraoka T, Morimoto S, Blanchard F, Tani S, Tanaka T, Sakai K, Kitajima H, Sasaki K, Tanaka K. Transfer of orbital angular momentum of light to plasmonic excitations in metamaterials. Sci Adv 2020; 6:eaay1977. [PMID: 32582843 PMCID: PMC7292619 DOI: 10.1126/sciadv.aay1977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 05/01/2020] [Indexed: 06/11/2023]
Abstract
The emergence of the vortex beam with orbital angular momentum (OAM) has provided intriguing possibilities to induce optical transitions beyond the framework of the electric dipole interaction. The uniqueness stems from the OAM transfer from light to material, as demonstrated in electronic transitions in atomic systems. In this study, we report on the OAM transfer to electrons in solid-state systems, which has been elusive to date. Using metamaterials (periodically textured metallic disks), we show that multipolar modes of the surface electromagnetic excitations (so-called spoof localized surface plasmons) are selectively induced by the terahertz vortex beam. Our results reveal selection rules governed by the conservation of the total angular momentum, which is confirmed by numerical simulations. The efficient transfer of light's OAM to elementary excitations in solid-state systems at room temperature opens up new possibilities of OAM manipulation.
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Affiliation(s)
- T. Arikawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T. Hiraoka
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - S. Morimoto
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - F. Blanchard
- Department of Electrical Engineering, École de technologie supérieure (ÉTS), Montréal, Québec H3C 1K3, Canada
| | - S. Tani
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Kyoto 606-8501, Japan
| | - T. Tanaka
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Kyoto 606-8501, Japan
| | - K. Sakai
- Research Institute for Electronic Science, Hokkaido University, Hokkaido 001-0020, Japan
| | - H. Kitajima
- Research Institute for Electronic Science, Hokkaido University, Hokkaido 001-0020, Japan
| | - K. Sasaki
- Research Institute for Electronic Science, Hokkaido University, Hokkaido 001-0020, Japan
| | - K. Tanaka
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Kyoto 606-8501, Japan
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Funakoshi Y, Imamura H, Tani S, Adachi H, Fukumitsu R, Sunohara T, Omura Y, Matsui Y, Sasaki N, Fukuda T, Akiyama R, Horiuchi K, Kajiura S, Shigeyasu M, Iihara K, Sakai N. Predictors of Cerebral Aneurysm Rupture after Coil Embolization: Single-Center Experience with Recanalized Aneurysms. AJNR Am J Neuroradiol 2020; 41:828-835. [PMID: 32381548 PMCID: PMC7228172 DOI: 10.3174/ajnr.a6558] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 02/22/2020] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Recanalization after coil embolization is widely studied. However, there are limited data on how recanalized aneurysms rupture. Herein, we describe our experience with the rupture of recanalized aneurysms and discuss the type of recanalized aneurysms at greatest rupture risk. MATERIALS AND METHODS A total of 426 unruptured aneurysms and 169 ruptured aneurysms underwent coil embolization in our institution between January 2009 and December 2017. Recanalization occurred in 38 (8.9%) of 426 unruptured aneurysms (unruptured group) and 37 (21.9%) of 169 ruptured aneurysms (ruptured group). The Modified Raymond-Roy classification on DSA was used to categorize the recanalization type. Follow-up DSA was scheduled until 6 months after treatment, and follow-up MRA was scheduled yearly. If recanalization was suspected on MRA, DSA was performed. RESULTS In the unruptured group, the median follow-up term was 74.0 months. Retreatment for recanalization was performed in 18 aneurysms. Four of 20 untreated recanalized aneurysms (0.94% of total coiled aneurysms) ruptured. In untreated recanalized aneurysms, class IIIb aneurysms ruptured significantly more frequently than class II and IIIa (P = .025). In the ruptured group, the median follow-up term was 28.0 months. Retreatment for recanalization was performed in 16 aneurysms. Four of 21 untreated recanalized aneurysms (2.37% of total coiled aneurysms) ruptured. Class IIIb aneurysms ruptured significantly more frequently than class II and IIIa (P = .02). CONCLUSIONS The types of recanalization after coil embolization may be predictors of rupture. Coiled aneurysms with class IIIb recanalization should undergo early retreatment because of an increased rupture risk.
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Affiliation(s)
- Y Funakoshi
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
| | - H Imamura
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
| | - S Tani
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
| | - H Adachi
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
| | - R Fukumitsu
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
| | - T Sunohara
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
| | - Y Omura
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
| | - Y Matsui
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
| | - N Sasaki
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
| | - T Fukuda
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
| | - R Akiyama
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
| | - K Horiuchi
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
| | - S Kajiura
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
| | - M Shigeyasu
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
| | - K Iihara
- Department of Neurosurgery (K.I.), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - N Sakai
- From the Department of Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan
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Sunakawa Y, Ichikawa W, Hagiwara K, Tsuda M, Takagane A, Yasui H, Satake H, Denda T, Segawa Y, Tanioka H, Kotaka M, Kochi M, Watanabe T, Nakamura M, Tsuji A, Tani S, Negoro Y, Tobimatsu K, Takeuchi M, Fujii M. Update on phase II trial of cetuximab plus S-1/oxaliplatin (SOX) for metastatic colorectal cancer (mCRC): JACCRO CC-06. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz338.029] [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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Matsuo R, Tani S, Atsumi W, Matsumoto N. P4412Association of sleep duration with cardio-metabolic risk leading to development of atherosclerotic cardiovascular disease. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0816] [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: 11/15/2022] Open
Abstract
Abstract
Background
Sleep duration, mostly of short duration, has emerged as a potential factor in adverse cardio-metabolic risk. We investigated the relationship between sleep duration and cardio-metabolic risk leading to atherosclerotic cardiovascular disease (ASCVD).
Purpose
We examined the association between sleep duration and cardio-metabolic risk in Japanese men.
Methods
This cross-sectional study was conducted using a sample of 6,907 apparent healthy men who had undergone medical examinations at the Health Planning Center of Nihon University Hospital between April, 2015 and May, 2016. The relationship between waist circumference, homeostasis model assessment of insulin resistance (HOMA-IR), HbA1c, non-high-density lipoprotein cholesterol (non-HDL-C) level, and sleep duration was evaluated.
Results
Both unusually short and long sleep durations were associated with waist circumference, impaired glucose tolerance and high non-HDL-C level (Figure). Compared with men sleeping 7 to 8 hours, the relative risk of abdominal obesity (defined according to the Japanese criteria for metabolic syndrome as a waist circumference of 85cm≥) among men sleeping ≥8 h was 1.27 (95% Confidence interval (CI), 1.05–1.55, p<0.01); the relative risk of a high HOMA-IR (2.0≥) level among men sleeping <5 h was 1.43 (95% CI, 1.00–2.05, p<0.05); among men sleeping ≥8 h the relative risk was 1.38 (95% CI, 1.08–1.77, p=0.01); the relative risk of a HbA1c level of ≥5.6% (defined as “high” by a specialized life style checkup program for the detection of symptoms of metabolic syndrome in Japan) among men sleeping <5 h was 1.39 (95% CI, 1.01–1.65, p<0.05); the relative risk of a non-HDL-C level of ≥170 mg/dL (defined as “high” by the Japanese Arteriosclerosis Society based on a lipid control target value for the primary prevention of ASCVD) among men sleeping ≥8 was 1.40 (95% CI, 1.13–1.76, p<0.01). These analyses were adjusted for age, psychological stress, and the use of cholesterol-lowering, blood-pressure lowering, and anti-diabetic medications.
Conclusion
The results suggest that unusually short and long sleep durations may increase cardio-metabolic risk. To further reduce the risk of ASCVD, it may be of particular importance to emphasize adequate sleep duration.
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Affiliation(s)
- R Matsuo
- Nihon University Hospital, Tokyo, Japan
| | - S Tani
- Nihon University Hospital, Tokyo, Japan
| | - W Atsumi
- Nihon University Hospital, Tokyo, Japan
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Zoungrana J, Kyelem CG, Sondo KA, Naibi KA, Hema A, Kabore NF, Poda A, Bado A, Yaméogo I, Séré H, Ouedraogo AS, Tani S, Tarnagda Z. [Characteristics of Low-Level Persistent viraemias in HIV-1 Patients Treated with Second-Line ARVs at the Sourô Sanou Teaching Hospital of Bobo-Dioulasso (Burkina Faso)]. ACTA ACUST UNITED AC 2019; 111:161-166. [PMID: 30793572 DOI: 10.3166/bspe-2018-0039] [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: 12/05/2017] [Accepted: 08/29/2018] [Indexed: 11/20/2022]
Abstract
We describe the characteristics of patients infected with HIV-1 as second-line antiretroviral therapy, with persisting low-level viremia. This was a descriptive retrospective study, conducted from January 1, 2010 to December 31, 2016, from the Cohort of the Infectious Diseases Department of Bobo-Dioulasso University Hospital. Patients infected with HIV-1, a second line of stable ARV treatment, with ≥95% compliance for at least 12 months, asymptomatic with CVp between 50 and 1000 copies/ml in two consecutive samplings at least 3 months apart. Out of 244 patients in second-line therapy, 79 met our inclusion criteria. The mean age of the patients was 42±10.2 years. Women (35.8 years) were younger than men (43.8 years) (p=0.001). Most were married (48.1%), 23.5% of whom were polygamous. The majority of patients (38/79) in the study had a CD4 count of <200 cells/ mm3. The median duration of ARV therapy since the beginning of the therapeutic history has been 4.8 (2.5-11 years). CVp greater than 10,000 copies/ml at the start of second-line therapy (p=0.003) and TDF+FTC + DRV + RTV combination (p=0.001) were associated with persistent low viremia. A genotypic resistance test is needed for these patients in order to better adapt the ARV treatment.
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Affiliation(s)
- J Zoungrana
- Service des maladies infectieuses du CHU Sanou Sourô Bobo-Dioulasso, Burkina Faso
| | - C G Kyelem
- Service de médecine interne du CHU Sanou Sourô Bobo-Dioulasso, Burkina Faso
| | - K A Sondo
- Service des maladies infectieuses du CHU Yalgado Ouedraogo de Ouagadougou, Burkina Faso
| | - K A Naibi
- Service des maladies infectieuses du CHU Sanou Sourô Bobo-Dioulasso, Burkina Faso
| | - A Hema
- Service des maladies infectieuses du CHU Sanou Sourô Bobo-Dioulasso, Burkina Faso
| | - N F Kabore
- Service des maladies infectieuses du CHU Sanou Sourô Bobo-Dioulasso, Burkina Faso
| | - A Poda
- Service des maladies infectieuses du CHU Sanou Sourô Bobo-Dioulasso, Burkina Faso
| | - A Bado
- Service de bactériologie virologie du CHU Sanou Sourô Bobo-Dioulasso, Burkina Faso
| | - I Yaméogo
- Service des maladies infectieuses du CHU Sanou Sourô Bobo-Dioulasso, Burkina Faso
| | - H Séré
- Service des maladies infectieuses du CHU Sanou Sourô Bobo-Dioulasso, Burkina Faso
| | - A S Ouedraogo
- Service de bactériologie virologie du CHU Sanou Sourô Bobo-Dioulasso, Burkina Faso
| | - S Tani
- Institut de recherche des sciences de la santé de Bobo-Dioulasso, Burkina Faso
| | - Z Tarnagda
- Institut de recherche des sciences de la santé de Bobo-Dioulasso, Burkina Faso
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Sunakawa Y, Fang X, Kotaka M, Tanioka H, Takagane A, Tani S, Yamaguchi T, Watanabe T, Masuishi T, Tsuda M, Okuno T, Tamura T, Furushima K, Kuramochi H, Koike J, Yonemura Y, Yasui H, Takeuchi M, Fujii M, Ichikawa W. CEA response at four weeks as an early predictor for outcomes in patients (pts) with metastatic colorectal cancer (mCRC) treated with first-line cetuximab-based chemotherapy: A STEP-analysis in the JACCRO CC-05/06 trials. J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.4_suppl.543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
543 Background: We have reported that carcinoembryonic antigen (CEA) response correlated with clinical outcomes of 1st-line cet-based therapy (Target Oncol 2017). Early tumor shrinkage (ETS) is considered to be an on-treatment biomarker for outcomes of chemotherapy; however, clinical biomarkers to predict outcomes earlier are warranted. Methods: This study included 69 pts who were assessable for CEA at baseline and 4 wks, and with observed survival time from 2 phase II trials of 1st-line therapy for KRAS exon2 wild-type mCRC; JACCRO CC-05 of cet plus FOLFOX (UMIN000004197) and CC-06 of cet plus SOX (UMIN000007022). We investigated the influence of baseline age, gender, PS, primary tumor sidedness (PTS), number of tumor sites, as well as the CEA decrease at 4 wks to the patient’s OS and PFS. Results: PTS and the CEA decrease at 4 wks were found to be important predictors to OS and PFS. Baseline CEA and CEA decrease at 4 wks were median of 31.0 (range, 1.0-20920.0) and median of 35% (range, -259%-97%), respectively. The STEP-analysis indicated that CEA response was most significantly associated with OS when a cut-off value of 50% for CEA-responder (HR 0.49, log-rank test p = 0.03). Median OS in responders (n = 25) and non-responders (n = 44) were 36.2 m and 21.5 m, respectively. When the same cut-off value was used, median PFS in responders and non-responders were 11.6 m and 6.5 m, respectively (HR 0.64, log-rank test p = 0.08). In addition, a multivariate Cox Proportional-Hazards Model with both PTS and CEA response as risk factors showed that PTS correlated with both OS and PFS. In pts with left-sided tumors, non-responders (n = 33) had shorter OS and PFS compared to responders (n = 23). In the above 2-covariate Cox proportional hazard model, adjusted HR for CEA 50% decrease is 0.55, p = 0.1; adjusted HR for PTS is 2.66, p = 0.008. Conclusions: Our analysis suggests 50% CEA decrease at 4 wks as an early on-treatment biomarker for 1st-line cet-based therapy in mCRC. It may potentially predict outcomes earlier compared to ETS. Also, CEA response at 4 wks may differentiate pts who receive more benefit from cet treatment in left-sided tumors. Clinical trial information: UMIN000004197 and UMIN000007022.
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Affiliation(s)
- Yu Sunakawa
- Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Xuemin Fang
- Department of Clinical Medicine (Biostatistics), School of Pharmacy, Kitasato University, Tokyo, Japan
| | | | - Hiroaki Tanioka
- Department of Clinical Oncology, Kawasaki Medical School Hospital, Kurashiki, Japan
| | - Akinori Takagane
- Department of Surgery, Hakodate Goryoukaku Hospital, Hakodate, Japan
| | - Satoshi Tani
- Department of Medical Oncology, Kohnan Hospital, Kobe, Japan
| | - Tatsuro Yamaguchi
- Department of Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | | | - Toshiki Masuishi
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Masahiro Tsuda
- Department of Gastroenterology, Hyogo Cancer Center, Akashi, Japan
| | - Tatsuya Okuno
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Takao Tamura
- Department of Medical Oncology, Kindai University Nara Hospital, Ikoma, Japan
| | | | - Hidekazu Kuramochi
- Department of Chemotherapy, Tokyo Woman's Medical University, Yachiyo Medical Center, Yachiyo, Japan
| | - Junichi Koike
- Gastroenterological Surgery, Omori Medical Center, Toho University School of Medicine, Tokyo, Japan
| | - Yutaka Yonemura
- Department of Surgery, Kishiwada Tokushukai Hospital, Kishiwada, Japan
| | - Hisateru Yasui
- Department of Medical Oncology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Masahiro Takeuchi
- Department of Clinical Medicine (Biostatistics), School of Pharmacy, Kitasato University, Tokyo, Japan
| | - Masashi Fujii
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Wataru Ichikawa
- Division of Medical Oncology, Showa University Fujigaoka Hospital, Yokohama, Japan
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Takei J, Tochigi S, Arai M, Tanaka T, Kajiwara I, Hatano K, Ichinose D, Sakamoto H, Hasegawa Y, Ishibashi T, Tani S, Murayama Y. Spinal Extradural Arteriovenous Fistula with Cowden Syndrome: A Case Report and Literature Review Regarding Pathogenesis and Therapeutic Strategy. NMC Case Rep J 2018; 5:83-85. [PMID: 30327747 PMCID: PMC6187262 DOI: 10.2176/nmccrj.cr.2018-0018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 01/20/2018] [Accepted: 05/02/2018] [Indexed: 11/22/2022] Open
Abstract
We report the case of a patient with a spinal extradural arteriovenous fistula (AVF) associated with Cowden syndrome (CS) that was successfully treated by endovascular surgery. CS is an autosomal dominant disorder associated with diverse symptoms caused by a deleterious mutation in the phosphatase and tensin homolog (PTEN) gene. A 67-year-old woman was diagnosed with CS based on her medical history of multiple cancers for which she underwent abdominal surgery, macrocephaly, Lhermitte-Duclos disease, and facial papules. Her genetic testing demonstrated a PTEN mutation. She presented with progressive paraparesis and her MRI of the thoracolumbar spine showed the spinal cord edema along with flow voids. A spinal angiogram demonstrated a spinal extradural AVF with the perimedullary drainage. The AVF was successfully treated by endovascular surgery. The PTEN mutation can accelerate angiogenesis; thus, vascular anomalies are one of the diagnostic criteria of CS. However, only two cases of vascular anomalies involving the spinal cord in patients with CS have been reported previously. As the present case, both cases had a history of abdominal or retroperitoneal cancer. The PTEN mutation accompanied with abdominal surgery might have caused this vascular anomaly as the consequences of venous congestion around the thoracolumbar spine. A spinal extradural AVF should be considered in patients with CS who present with myelopathy, especially when the patient has a history of abdominal or retroperitoneal surgery. Regarding the treatment strategy, endovascular surgery should be considered because surgical insult could prompt secondary vascular anomalies resulting from neovascularization due to the PTEN mutation.
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Affiliation(s)
- Jun Takei
- Department of Neurosurgery, Jikei University Kashiwa Hospital, Kashiwa, Chiba, Japan
| | - Satoru Tochigi
- Department of Neurosurgery, Jikei University Kashiwa Hospital, Kashiwa, Chiba, Japan
| | - Masami Arai
- Department of Clinical Genetic Oncology, the Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Toshihide Tanaka
- Department of Neurosurgery, Jikei University Kashiwa Hospital, Kashiwa, Chiba, Japan
| | - Ikki Kajiwara
- Department of Neurosurgery, Jikei University Kashiwa Hospital, Kashiwa, Chiba, Japan
| | - Keisuke Hatano
- Department of Neurosurgery, Jikei University Kashiwa Hospital, Kashiwa, Chiba, Japan
| | - Daisuke Ichinose
- Department of Neurosurgery, Jikei University Kashiwa Hospital, Kashiwa, Chiba, Japan
| | - Hiroki Sakamoto
- Department of Neurosurgery, Jikei University Kashiwa Hospital, Kashiwa, Chiba, Japan
| | - Yuzuru Hasegawa
- Department of Neurosurgery, Jikei University Kashiwa Hospital, Kashiwa, Chiba, Japan
| | - Toshihiro Ishibashi
- Department of Neurosurgery, Jikei University School of Medicine, Tokyo, Japan
| | - Satoshi Tani
- Department of Neurosurgery, Jikei University School of Medicine, Tokyo, Japan
| | - Yuichi Murayama
- Department of Neurosurgery, Jikei University School of Medicine, Tokyo, Japan
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21
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Furuta T, Baba S, Yamade M, Uotani T, Kagami T, Suzuki T, Tani S, Hamaya Y, Iwaizumi M, Osawa S, Sugimoto K. High incidence of autoimmune gastritis in patients misdiagnosed with two or more failures of H. pylori eradication. Aliment Pharmacol Ther 2018; 48:370-377. [PMID: 29920721 DOI: 10.1111/apt.14849] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [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] [Received: 01/23/2018] [Revised: 02/12/2018] [Accepted: 05/23/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Although autoimmune gastritis (AIG) is generally considered relatively rare, we frequently encounter AIG among patients at to our hospital who have experienced at least two episodes of Helicobacter pylori eradication failure. AIMS We investigated the incidence of AIG in consecutive patients who consulted our department for H. pylori eradication with reference to eradication history. METHODS A total of 404 consecutive patients who visited the H. pylori-specific out-patient unit of our hospital from June 2015 to June 2017 were enrolled. Of these, 137 were treatment-naive, 47 had failed treatment once (single failure), and 220 had failed treatment twice or more (multiple failures) by 13 C-UBT. Gastroscopy was performed in all patients. Culture tests of gastric mucosal samples were performed for H. pylori and other bacteria positive for urease activity. Anti-parietal cell antibody (APCA) was measured. Patients with severe atrophy in the gastric corpus and positivity for APCA were diagnosed as having AIG. RESULTS A total of 43 patients were diagnosed as having AIG, of whom two were treatment-naive (1.5%, 2/137), 1 failed eradication once (2.1% 1/47), and 40 failed treatment at least twice (18.2%, 40/220). The incidence of AIG was significantly higher in the multiple failure group than in the single failure or treatment-naive groups. Urease-positive bacteria, such as Klebsiella pneumoniae and alpha-streptococcus, were identified in 33 of the 35 AIG patients who underwent culture testing. CONCLUSION AIG patients were often misdiagnosed as refractory to eradication therapy, probably because achlorhydria in AIG might allow urease-positive bacteria other than H. pylori to colonise the stomach, causing positive 13 C-UBT results.
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Affiliation(s)
- T Furuta
- Center for Clinical Research, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - S Baba
- Department of Diagnostic Pathology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - M Yamade
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - T Uotani
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - T Kagami
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - T Suzuki
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - S Tani
- Department of Endoscopic and Photodynamic Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Y Hamaya
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - M Iwaizumi
- Department of Laboratory Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - S Osawa
- Department of Endoscopic and Photodynamic Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - K Sugimoto
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
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22
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Watanabe Y, Takahashi H, Furuya S, Tani S, Washio T, Kawauchi K, Kobori M, Matsuzaki M, Yuzawa Y, Ashida T, Matsuo R, Yagyu S, Matsumoto N. P1550Gender difference in cholesterol levels associated with coronary microvascular dysfunction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1550] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Y Watanabe
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - H Takahashi
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - S Furuya
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - S Tani
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - T Washio
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - K Kawauchi
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - M Kobori
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - M Matsuzaki
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - Y Yuzawa
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - T Ashida
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - R Matsuo
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - S Yagyu
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - N Matsumoto
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
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23
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Ikram S, Tani S, Kaur G, Hemadri M. Adult jejunal intussusception : A rare case of intestinal obstruction in adults. Int J Surg 2018. [DOI: 10.1016/j.ijsu.2018.05.130] [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: 10/28/2022]
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24
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Affiliation(s)
- S Tani
- Meiji University, Kawasaki, Japan
| | - C Piñeiro
- PigCHAMP Pro Europa S.L., Segovia, Spain
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25
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Tani S, Yatabe Y, Piñeiro C, Koketsu Y. 78 Lameness Culling Risks and Relative Risk Ratios for Gilts and Sows on Commercial Farms. J Anim Sci 2018. [DOI: 10.1093/jas/sky073.076] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- S Tani
- Meiji University, Kawasaki, Japan
| | - Y Yatabe
- Meiji University, Kawasaki, Japan
| | - C Piñeiro
- PigCHAMP Pro Europa S.L., Segovia, Spain
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26
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Affiliation(s)
- S Tani
- Meiji University, Kawasaki, Japan
| | - C Piñeiro
- PigCHAMP Pro Europa S.L., Segovia, Spain
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27
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Ichinose D, Tochigi S, Tanaka T, Suzuki T, Takei J, Hatano K, Kajiwara I, Maruyama F, Sakamoto H, Hasegawa Y, Tani S, Murayama Y. Concomitant Intracranial and Lumbar Chronic Subdural Hematoma Treated by Fluoroscopic Guided Lumbar Puncture: A Case Report and Literature Review. Neurol Med Chir (Tokyo) 2018; 58:178-184. [PMID: 29479039 PMCID: PMC5929916 DOI: 10.2176/nmc.cr.2017-0177] [Citation(s) in RCA: 6] [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] [Indexed: 12/02/2022] Open
Abstract
A 40-year-old man presented with a severe headache, lower back pain, and lower abdominal pain 1 month after a head injury caused by falling. Computed tomography (CT) of the head demonstrated bilateral chronic subdural hematoma (CSDH) with a significant amount in the left frontoparietal region. At the same time, magnetic resonance imaging (MRI) of the lumbar spine also revealed CSDH from L2 to S1 level. A simple drainage for the intracranial CSDH on the left side was performed. Postoperatively, the headache was improved; however, the lower back and abdominal pain persisted. Aspiration of the liquefied spinal subdural hematoma was performed by a lumbar puncture under fluoroscopic guidance. The clinical symptoms were dramatically improved postoperatively. Concomitant intracranial and spinal CSDH is considerably rare so only 23 cases including the present case have been reported in the literature so far. The etiology and therapeutic strategy were discussed with a review of the literature. Therapeutic strategy is not established for these two concomitant lesions. Conservative follow-up was chosen for 14 cases, resulting in a favorable clinical outcome. Although surgical evacuation of lumbosacral CSDH was performed in seven cases, an alteration of cerebrospinal fluid (CSF) pressure following spinal surgery should be reminded because of the intracranial lesion. Since CSDH is well liquefied in both intracranial and spinal lesion, a less invasive approach is recommended not only for an intracranial lesion but also for spinal lesion. Fluoroscopic-guided lumbar puncture for lumbosacral CSDH following burr hole surgery for intracranial CSDH could be a recommended strategy.
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Affiliation(s)
| | - Satoru Tochigi
- Department of Neurosurgery, Jikei University Kashiwa Hospital
| | | | - Tomoya Suzuki
- Department of Neurosurgery, Jikei University Kashiwa Hospital
| | - Jun Takei
- Department of Neurosurgery, Jikei University Kashiwa Hospital
| | - Keisuke Hatano
- Department of Neurosurgery, Jikei University Kashiwa Hospital
| | - Ikki Kajiwara
- Department of Neurosurgery, Jikei University Kashiwa Hospital
| | | | - Hiroki Sakamoto
- Department of Neurosurgery, Jikei University Kashiwa Hospital
| | - Yuzuru Hasegawa
- Department of Neurosurgery, Jikei University Kashiwa Hospital
| | - Satoshi Tani
- Department of Neurosurgery, Jikei University School of Medicine
| | - Yuichi Murayama
- Department of Neurosurgery, Jikei University School of Medicine
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28
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Tani S, Watanabe H, Naito Y, Sakusabe T, Watanabe H, Nakaya J, Sasaki F, Numano T, Furuta T, Furuta T, Kimura M. High Speed Clinical Data Retrieval System with Event Time Sequence Feature. Methods Inf Med 2018; 47:560-8. [DOI: 10.3414/me9125] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Summary
Objectives:
This paper illustrates a high speed clinical data retrieving system, from 10 years of data of operating hospital information system for the purposes of research, evidence creation, patient safety, etc., even incorporating time sequence of causal relations.
Methods:
Total of 73,709,298 records of 10 years at Hamamatsu University Hospital (as of June 2008) are sent from HIS to retrieval system in HL7 v2.5 format. Hierarchical variable length database is used to install them.
Results:
A search for “listing patients who were prescribed Pravastatin (Mevalotin and generic drugs, any titer)” took 1.92 seconds. “Pravastatin (any) prescribed and recorded AST >150 within two weeks” took 112.22 seconds. Searching conditions can be set to be more complex, connected by Boolean operator and/or. This system called D*D is in operation at Hamamatsu University Hospital since August 2002. It is used for 48,518 times (monthly average of 703 searches). Neither searching, nor background export of data from HIS caused delay of routine operating CPOE.
Conclusions:
Search database outside of routine operating CPOE, with daily export of order data in HL7 v2.5 format, is proved to provide excellent search environment without causing trouble. Hierarchical representation gives high-speed search response, especially with time sequence of events.
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Kimura M, Nakayasu K, Ohshima Y, Fujita N, Nakashima N, Jozaki H, Numano T, Shimizu T, Shimomura M, Sasaki F, Fujiki T, Nakashima T, Toyoda K, Hoshi H, Sakusabe T, Naito Y, Kawaguchi K, Watanabe H, Tani S. SS-MIX: A Ministry Project to Promote Standardized Healthcare Information Exchange. Methods Inf Med 2018; 50:131-9. [PMID: 21206962 DOI: 10.3414/me10-01-0015] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [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: 02/17/2010] [Accepted: 08/29/2010] [Indexed: 11/09/2022]
Abstract
Summary
Objectives: To promote healthcare information exchange between providers and to allow hospital information systems (HIS) export information in standardized format (HL7 and DICOM) in an environment of widespread legacy systems, which only can export data in proprietary format.
Methods: Through the Shizuoka prefecture EMR project in 2004–2005, followed by the ministry’s SS-MIX project, many software products have been provided, which consist of 1) a standardized storage to receive HL7 v2.5 mes sages of patient demographics, prescription orders, laboratory results, and diagnostic disease in ICD-10, 2) a referral letter creation system, 3) a formatted document creation system, 4) a progress note/nursing record system, and 5) an archive/viewer to incorporate incoming healthcare data CD and allow users to view on HIS terminal. Meanwhile, other useful applications have been produced, such as adverse event reporting and clinical information retrieval. To achieve the above-mentioned objectives, these software products were created and propagated, because users can use these software products, provided that their HIS can export the above information to the standardized storage in HL7 v2.5 format.
Results: In 20 hospitals of Japan, the standardized storage has been installed and some applications have been used. As major HIS vendors are shipping HIS with HL7 export function since 2007, HIS of 594 hospitals in Japan became capable of exporting data in HL7 v2.5 format (as of March 2010).
Conclusions: In high CPOE installation rate (85% in 400+ bed hospitals), though most of them only capable of exporting data in proprietary format, prefecture and ministry projects were effective to promote healthcare information exchange between providers. The standardized storage became an infrastructure for many useful applications, and many hospitals started using them. Ministry designation of proposed healthcare standards was effective so as to allow vendors to conform their products, and users to install them.
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Affiliation(s)
- M Kimura
- Hamamatsu University, Hamamatsu, Japan
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Tsuji A, Sunakawa Y, Ichikawa W, Nakamura M, Kochi M, Denda T, Yamaguchi T, Shimada K, Takagane A, Tani S, Kotaka M, Kuramochi H, Furushima K, Koike J, Yonemura Y, Takeuchi M, Fujii M, Nakajima T. Early Tumor Shrinkage and Depth of Response as Predictors of Favorable Treatment Outcomes in Patients with Metastatic Colorectal Cancer Treated with FOLFOX Plus Cetuximab (JACCRO CC-05). Target Oncol 2017; 11:799-806. [PMID: 27306648 DOI: 10.1007/s11523-016-0445-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Retrospective studies have found that early tumor shrinkage (ETS) and depth of response (DpR) are associated with favorable outcomes in patients with metastatic colorectal cancer (mCRC); however, few prospective studies have evaluated ETS and DpR. PATIENTS AND METHODS We performed a phase II study of FOLFOX plus cetuximab as first-line treatment in Japanese patients with KRAS wild-type mCRC. The primary endpoint was response rate (RR), and secondary endpoints included progression-free survival (PFS), overall survival (OS), chronological tumor shrinkage (evaluated every 8 weeks), and safety. The association of ETS and DpR with survival time was analyzed using Spearman's rank correlation coefficient. RESULTS In 54 participants, the RR, median PFS, and OS were 66.7 % (95 % CI, 53.4-77.8 %), 11.1 months, and 33.9 months, respectively. There was no unexpected toxicity. Forty (80 %) of 50 assessable patients had ETS, which was associated with prolonged PFS and OS (11.3 vs. 3.7 months, HR 0.26, p = 0.0003; 42.8 vs. 9.0 months, HR 0.40, p = 0.0279, respectively). Median DpR was 56.3 %. The DpR correlated with OS (r s = 0.314, p = 0.027) as well as post-progression survival (PPS) (r s = 0.366, p = 0.017). Interestingly, DpR was moderately associated with OS and PPS (r s = 0.587, r s = 0.570, respectively) in patients harboring tumors with larger target lesions, but was not associated with OS or PPS in patients with smaller target lesions. FOLFOX plus cetuximab was active as a first-line treatment for Japanese mCRC patients, with no unexpected toxicities. CONCLUSIONS Our prospective evaluation of chronological tumor shrinkage showed that ETS and DpR correlate with outcomes in patients with KRAS wild-type mCRC who receive cetuximab-based chemotherapy (UMIN000004197).
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Affiliation(s)
- Akihito Tsuji
- Department of Clinical Oncology, Kagawa University Faculty of Medicine Cancer Center, Kagawa University Hospital, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Yu Sunakawa
- Division of Medical Oncology, Department of Internal Medicine, Showa University Northern Yokohama Hospital, 35-1, Chigasaki-chuo, Tsuzuki-ku, Yokohama, Kanagawa, 224-8503, Japan
| | - Wataru Ichikawa
- Division of Medical Oncology, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama, Kanagawa, 227-8501, Japan.
| | - Masato Nakamura
- Aizawa Comprehensive Cancer Center, Aizawa Hospital, 2-5-1, Honjyo, Matsumoto, Nagano, 390-8510, Japan
| | - Mitsugu Kochi
- Department of Digestive Surgery, Nihon University School of Medicine, 30-1, Oyaguchikami-machi, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Tadamichi Denda
- Division of Gastroenterology, Chiba Cancer Center, 666-2, Nitona-cho, Chuo-ku, Chiba, 260-8717, Japan
| | - Tatsuro Yamaguchi
- Department of Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, 3-18-22, Honkomagome, Bunkyo-ku, Tokyo, 113-8677, Japan
| | - Ken Shimada
- Division of Medical Oncology, Department of Internal Medicine, Showa University Koto Toyosu Hospital, 5-1-38 Toyosu, Koto-ku, Tokyo, 135-8577, Japan
| | - Akinori Takagane
- Department of Surgery, Hakodate Goryoukaku Hospital, 38-3, Goryokaku-machi, Hakodate, Hokkaido, 040-8611, Japan
| | - Satoshi Tani
- Department of Internal Medicine, Konan Hospital, 1-5-16, Kamokogahara, Higashinada-ku, Kobe, Hyogo, 658-0064, Japan
| | - Masahito Kotaka
- Gastrointestinal Cancer Center, Sano Hospital, 2-5-1, Shimizugaoka, Tarumi-ku, Kobe, Hyogo, 655-0031, Japan
| | - Hidekazu Kuramochi
- Department of gastroenterological Surgery, Tokyo Women's Medical University Yachiyo Medical Center, 477-96, Owadashinden, Yachiyo, Chiba, 276-8524, Japan
| | - Kaoru Furushima
- Department of Surgery, NTT Medical Center, 5-9-22, Higashi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan
| | - Junichi Koike
- Department of Digestive Surgery, Toho University School of Medicine, 6-11-1, Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - Yutaka Yonemura
- Department of Surgery, Kishiwada Tokushukai Hospital, 4-27-1, Kamoricho, Kishiwada, Osaka, 596-0042, Japan
| | - Masahiro Takeuchi
- Department of Clinical Medicine (Biostatistics), Kitasato University School of Pharmacy, 5-9-1, Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Masashi Fujii
- Department of Digestive Surgery, Nihon University School of Medicine, 30-1, Oyaguchikami-machi, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Toshifusa Nakajima
- Japan Clinical Cancer Research Organization, 7F Ginza Wing Bldg. 1-14-5, Ginza, Chuo-ku, Tokyo, 104-0061, Japan
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Kawauchi K, Furuya S, Kikushima K, Tani S, Takahashi H, Iida K, Washio T, Niizuma S, Kobori M, Ashida T, Yagyu S, Matsumoto N, Hirayama A. P1564Do endothelial-dependent and -independent coronary microvascular dysfunction coexist in women with chest pain and unobstructed coronary arteries? Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1564] [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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Niizuma S, Furuya S, Kikushima K, Tani S, Takahashi H, Iida K, Washio T, Kawauchi K, Kobori M, Ashida T, Yagyu S, Matsumoto N, Hirayama A. P1579Does remote ischaemic preconditioning improve coronary blood flow? Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1579] [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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Takahashi H, Furuya S, Kikushima K, Tani S, Iida K, Washio T, Niizuma S, Kawauchi K, Kobori M, Ashida T, Yagyu S, Matsumoto N, Hirayama A. P1757High prevalence of coronary microvascular spasm in women as assessed using a Doppler guide-wire. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1757] [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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Tani S, Atsumi A, Matsuo R, Ashida T, Hirayama A. P5310Association of n-3 polyunsaturated fatty acids with high-density lipoprotein particle size: a pilot cross-sectional study. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5310] [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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Yagyu S, Furuya S, Kikushima K, Tani S, Takahashi H, Iida K, Washio T, Niizuma S, Kawauchi K, Kobori M, Ashida T, Matsumoto N, Hirayama A. P1758High levels of LDL-C, apoB, and non-HDL-C associated with coronary microvascular dysfunction. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1758] [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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Furuya S, Takahashi H, Kikushima K, Tani S, Iida K, Washio T, Niizuma S, Kawauchi K, Kobori M, Ashida T, Yagyu S, Matsumoto N, Hirayama A. P5863Diagnostic accuracy of hyperemic instantaneous wave-free ratio for obstructive coronary artery disease based on lesion location. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5863] [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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Washio T, Furuya S, Kikushima K, Tani S, Takahashi H, Iida K, Niizuma S, Kawauchi K, Kobori M, Ashida T, Yagyu S, Matsumoto N, Hirayama A. P2387Instantaneous wave-free ratio can accurately predict the severity of coronary artery stenosis in patients under hemodialysis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2387] [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: 11/12/2022] Open
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Sunakawa Y, Yang D, LaFleur B, Luecke J, Thompson D, Moran M, Astrow SH, Hsiang J, Zhang W, Tsuji A, Takahashi T, Tanioka H, Negoro Y, Takagane A, Tani S, Yamaguchi T, Eto T, Fujii M, Ichikawa W, Lenz HJ. Association of immune-related genes to neutrophil-lymphocyte ratio (NLR) with survival of cetuximab treatment for metastatic colorectal cancer (mCRC): JACCRO CC-05/06AR. J Clin Oncol 2017. [DOI: 10.1200/jco.2017.35.15_suppl.11613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
11613 Background: The antitumor activity of cetuximab (cet) may be affected by extracellular immune mechanisms. We have reported that immune-related genes are associated with survival in mCRC patients (pts) treated with cet (ASCO 2016 abstract#11591). NLR reflects cancer-related inflammation and is a validated prognostic maker in many types of cancers; however, it is not currently used for treatment decision-making. The association between NLR and clinical outcome of cet treatment for mCRC is unknown, and which genes are affecting the NLR remain to be identified. Methods: We enrolled 77 pts (57% males and 15% right-colon cancer) with KRAS exon 2 wild-type from 2 phase II trials (JACCRO CC-05 or CC-06) of 1st-line therapy with FOLFOX or SOX plus cet. All patients’ tissues were measured for expression levels of 354 immune-related genes by HTG EdgeSeq Oncology Biomarker Panel using next generation sequencing for quantitative analysis of targeted RNAs. The association between the NLR and clinical outcome was evaluated using Spearman’s rank correlation coefficient. In addition, the two-sample t-test was performed to investigate which genes had significantly different expression level between NLR-low and high groups in top 100 genes associated with survival among all measured genes. Results: Seventy-one of 77 pts were available for NLR data. The NLR was associated with progression-free survival (PFS) and overall survival (OS) (r = 0.24; p= 0.04, r = 0.29; p= 0.01, respectively). When stratified by median value of NLR, the Kaplan-Meier curve of NLR-low (n = 36) vs. high (n = 35) had a significant difference in both PFS (median 11.8 vs. 9.1 m, p= 0.036) and OS (median 42.8 vs. 26.7 m, p= 0.029). The two-sample t-test revealed that LYZ, TYMP, and CD68 genes expressed significantly differently between NLR-low and high groups (t-test p-value < 0.005, FDR p-value < 0.150). Conclusions: NLR is significantly associated with survival of 1st-line cet treatment for mCRC. Genes encoding for activities on tissue macrophages and endothelial cells may affect the level of NLR associated with outcome of cet combination chemotherapy. Clinical trial information: UMIN000010635.
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Affiliation(s)
- Yu Sunakawa
- Division of Medical Oncology, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Dongyun Yang
- Department of Preventive Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA
| | | | | | | | | | | | | | - Wu Zhang
- Division of Medical Oncology, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA
| | - Akihito Tsuji
- Department of Clinical Oncology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Takehiro Takahashi
- Division of Medical Oncology, Showa University School of Medicine, Tokyo, Japan
| | - Hiroaki Tanioka
- Department of Medical Oncology, Japan Labour Health and Welfare Organization Okayama Rosai Hospital, Okayama, Japan
| | | | - Akinori Takagane
- Department of Surgery, Hakodate Goryoukaku Hospital, Hakodate, Japan
| | - Satoshi Tani
- Department of Medical Oncology, Kohnan Hospital, Kobe, Japan
| | - Tatsuro Yamaguchi
- Department of Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Tetsuya Eto
- Department of Gastroenterology, Tsuchiura Kyodo General Hospital, Tsuchiura, Japan
| | | | - Wataru Ichikawa
- Division of Medical Oncology, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Heinz-Josef Lenz
- Division of Medical Oncology, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA
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Tani S, Pineiro C, Koketsu Y. 108 Mortality and survival probability of breeding-female pigs in southern European commercial herds. J Anim Sci 2017. [DOI: 10.2527/asasmw.2017.108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tani S, Ishii N, Hashimoto T, Tsujioka K. Bullous pemphigoid arising in a patient with acquired perforating dermatosis. Clin Exp Dermatol 2017; 42:406-409. [PMID: 28218466 DOI: 10.1111/ced.13080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2016] [Indexed: 01/06/2023]
Abstract
A middle-aged Japanese man who had been on haemodialysis treatment for diabetic nephropathy developed multiple itchy papules and nodules, which were histopathologically diagnosed as acquired perforating dermatosis. Two years later he developed oral lesions and subsequently numerous erosive plaques with necrotic crusts on the trunk and extremities. Histopathology of a papule showed a parakeratotic plug intermingled with basophilic, necrotic debris and collagen bundles, along with penetration of collagen bundles across the epidermis and subepidermal blister. Immunoblotting studies revealed IgG autoantibodies in the patient's serum, which reacted with the C-terminal and the NC16a domains of bullous pemphigoid (BP)180, indicating presence of BP. We searched the literature and found no other cases of an autoimmune blistering disease occurring in association with a perforating disorder. Possible injury to the basement membrane zone induced during the process of transepidermal elimination might be involved in the pathogenesis of the pemphigoid disease.
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Affiliation(s)
- S Tani
- Department of Dermatology, Japanese Red Cross Wakayama Medical Center, Wakayama, Japan
| | - N Ishii
- Department of Dermatology, Kurume University School of Medicine, Fukuoka, Japan
| | - T Hashimoto
- Kurume University Institute of Cutaneous Cell Biology, Fukuoka, Japan
| | - K Tsujioka
- Department of Dermatology, Japanese Red Cross Wakayama Medical Center, Wakayama, Japan
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Sunakawa Y, Ichikawa W, Tsuji A, Denda T, Segawa Y, Negoro Y, Shimada K, Kochi M, Nakamura M, Kotaka M, Tanioka H, Takagane A, Tani S, Yamaguchi T, Takeuchi M, Fujii M, Nakajima T. CEA response and depth of response (DpR) to predict clinical outcomes in patients (pts) with metastatic colorectal cancer (mCRC) treated with first-line cetuximab plus oxaliplatin-based chemotherapy: A sub-analysis of the JACCRO CC-05/06 trials. J Clin Oncol 2017. [DOI: 10.1200/jco.2017.35.4_suppl.648] [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: 11/20/2022] Open
Abstract
648 Background: Carcinoembryonic antigen (CEA) decrease was faster and greater in cetuximab (cet) treatment than bevacizumab treatment and correlated with prolonged survival in mCRC pts receiving FOLFIRI plus cet (Michl M, et al. Ann Oncol 2016). We investigated if the CEA decrease is a surrogate for DpR reported to be associated with clinical outcomes. Methods: This study evaluated the association between the percentage of CEA decrease or DpR and clinical outcomes in pts with KRAS exon 2 wild-type from 2 phase II trials of 1st-line therapy; JACCRO CC-05 of cet plus FOLFOX ( n= 57, UMIN000004197) and CC-06 of cet plus SOX ( n= 61, UMIN000007022). The association was analyzed using Spearman’s rank correlation coefficient. The cut-off value of 75% CEA decrease was used for CEA response to discriminate CEA responders according to the previous report. The DpR was defined as the percentage of tumor shrinkage at the nadir as compared with the baseline values. Results: In total of 113 pts of the 2 trials in the full analysis set, 92 were eligible for analyses of both CEA and DpR. In the population consists of 92 evaluable pts, median progression-free survival (PFS) was 9.1 months, and median overall survival (OS) was 36.2 months. Median CEA decrease was 67.4% and median time to CEA nadir was 2.8 months similar to median time to DpR of 3.0 months. The DpR was associated with PFS and OS (rs= 0.56; P< 0.0001, rs= 0.39; P= 0.0090, respectively); moreover, CEA decrease correlated with PFS (rs= 0.56, P< 0.0001) as well as OS (rs= 0.35, P= 0.019). CEA responders showed significantly longer PFS [11.8 vs. 5.5 months; hazard ratio (HR) 0.46; 95% Cl, 0.28–0.73; P= 0.0009] and numerically longer OS (36.2 vs. 23.5 months; HR 0.57; 95% CI, 0.30-1.05; P= 0.072) than CEA non-responders. The CEA decrease was statistically significantly associated with DpR (rs= 0.44, P< 0.0001). Conclusions: Our study demonstrates that DpR and CEA response both correlated with clinical outcomes of 1st-line treatment with cet plus oxaliplatin-based chemotherapy. The CEA decrease may serve as a surrogate for DpR in 1st-line cet treatment.
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Affiliation(s)
- Yu Sunakawa
- Division of Medical Oncology, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Wataru Ichikawa
- Division of Medical Oncology, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Akihito Tsuji
- Department of Clinical Oncology, Kagawa University Faculty of Medicine, Kagawa, Japan
| | | | - Yoshihiko Segawa
- Department of Medical Oncology, Saitama Medical University International Medical Center, Hidaka, Japan
| | | | - Ken Shimada
- Division of Medical Oncology, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | | | | | - Hiroaki Tanioka
- Department of Medical Oncology, Japan Labour Health and Welfare Organization Okayama Rosai Hospital, Okayama, Japan
| | - Akinori Takagane
- Department of Surgery, Hakodate Goryoukaku Hospital, Hakodate, Japan
| | - Satoshi Tani
- Department of Medical Oncology, Kohnan Hospital, Kobe, Japan
| | - Tatsuro Yamaguchi
- Tokyo Metropolitan Cancer and Infectious diseases Center Komagome Hospital, Tokyo, Japan
| | - Masahiro Takeuchi
- Department of Clinical Medicine, Kitasato University School of Pharmacy, Tokyo, Japan
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Ishida Y, Otsu T, Ozawa A, Yaji K, Tani S, Shin S, Kobayashi Y. High repetition pump-and-probe photoemission spectroscopy based on a compact fiber laser system. Rev Sci Instrum 2016; 87:123902. [PMID: 28040935 DOI: 10.1063/1.4969053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The paper describes a time-resolved photoemission (TRPES) apparatus equipped with a Yb-doped fiber laser system delivering 1.2-eV pump and 5.9-eV probe pulses at the repetition rate of 95 MHz. Time and energy resolutions are 11.3 meV and ∼310 fs, respectively, the latter is estimated by performing TRPES on a highly oriented pyrolytic graphite (HOPG). The high repetition rate is suited for achieving high signal-to-noise ratio in TRPES spectra, thereby facilitating investigations of ultrafast electronic dynamics in the low pump fluence (p) region. TRPES of polycrystalline bismuth (Bi) at p as low as 30 nJ/mm2 is demonstrated. The laser source is compact and is docked to an existing TRPES apparatus based on a 250-kHz Ti:sapphire laser system. The 95-MHz system is less prone to space-charge broadening effects compared to the 250-kHz system, which we explicitly show in a systematic probe-power dependency of the Fermi cutoff of polycrystalline gold. We also describe that the TRPES response of an oriented Bi(111)/HOPG sample is useful for fine-tuning the spatial overlap of the pump and probe beams even when p is as low as 30 nJ/mm2.
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Affiliation(s)
- Y Ishida
- ISSP, University of Tokyo, Kashiwa-no-ha, Kashiwa, Chiba 277-8581, Japan
| | - T Otsu
- ISSP, University of Tokyo, Kashiwa-no-ha, Kashiwa, Chiba 277-8581, Japan
| | - A Ozawa
- ISSP, University of Tokyo, Kashiwa-no-ha, Kashiwa, Chiba 277-8581, Japan
| | - K Yaji
- ISSP, University of Tokyo, Kashiwa-no-ha, Kashiwa, Chiba 277-8581, Japan
| | - S Tani
- ISSP, University of Tokyo, Kashiwa-no-ha, Kashiwa, Chiba 277-8581, Japan
| | - S Shin
- ISSP, University of Tokyo, Kashiwa-no-ha, Kashiwa, Chiba 277-8581, Japan
| | - Y Kobayashi
- ISSP, University of Tokyo, Kashiwa-no-ha, Kashiwa, Chiba 277-8581, Japan
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Sunakawa Y, Ichikawa W, Tsuji A, Denda T, Segawa Y, Negoro Y, Shimada K, Kochi M, Nakamura M, Kotaka M, Tanioka H, Takagane A, Tani S, Yamaguchi T, Watanabe T, Takeuchi M, Fujii M, Nakajima T. Prognostic Impact of Primary Tumor Location on Clinical Outcomes of Metastatic Colorectal Cancer Treated With Cetuximab Plus Oxaliplatin-Based Chemotherapy: A Subgroup Analysis of the JACCRO CC-05/06 Trials. Clin Colorectal Cancer 2016; 16:e171-e180. [PMID: 27856123 DOI: 10.1016/j.clcc.2016.09.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [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: 07/13/2016] [Revised: 09/12/2016] [Accepted: 09/22/2016] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Primary tumor location is a critical prognostic factor in metastatic colorectal cancer (mCRC); however, it remains unclear whether tumor location is a predictor of the response to cetuximab treatment. It is also uncertain if BRAF mutation contributes to the impact of tumor location on survival. We assessed the prognostic impact of tumor location on clinical outcomes in mCRC patients treated with first-line cetuximab chemotherapy. PATIENTS AND METHODS The associations of tumor location with overall survival and progression-free survival were evaluated in mCRC patients with KRAS exon 2 wild-type tumors who were enrolled onto 2 clinical trials: JACCRO CC-05 of cetuximab plus FOLFOX (n = 57, UMIN000004197) and CC-06 of cetuximab plus SOX (n = 61, UMIN000007022). Tumors proximal or from splenic flexure to rectum were defined as right-sided or left-sided, respectively. In addition, exploratory RAS and BRAF mutation analyses were performed. RESULTS A total of 110 patients were assessable for tumor location; 90 had left-sided tumors. Left-sided tumors were significantly associated with longer overall survival (36.2 vs. 12.6 months, hazard ratio = 0.28, P < .0001) and progression-free survival (11.1 vs. 5.6 months, hazard ratio = 0.47, P = .0041) than right-sided tumors; similar results were obtained in multivariate analysis. A subanalysis showed that the association was evident in the FOLFOX group and that tumor location was an independent prognostic factor irrespective of BRAF status in RAS wild-type patients. CONCLUSION Primary tumor location might be a predictor of survival independent of BRAF status in mCRC patients who receive first-line cetuximab combined with oxaliplatin-based chemotherapy.
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Affiliation(s)
- Yu Sunakawa
- Division of Medical Oncology, Department of Internal Medicine, Showa University Northern Yokohama Hospital, Kanagawa, Japan.
| | - Wataru Ichikawa
- Division of Medical Oncology, Showa University Fujigaoka Hospital, Kanagawa, Japan
| | - Akihito Tsuji
- Department of Clinical Oncology, Kagawa University Faculty of Medicine Cancer Center, Kagawa University Hospital, Kagawa, Japan
| | - Tadamichi Denda
- Division of Gastroenterology, Chiba Cancer Center, Chiba, Japan
| | - Yoshihiko Segawa
- Department of Medical Oncology, International Medical Center, Saitama Medical University, Saitama, Japan
| | - Yuji Negoro
- Department of Gastroenterology, Kochi Health Sciences Center, Kochi, Japan
| | - Ken Shimada
- Division of Medical Oncology, Department of Internal Medicine, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mitsugu Kochi
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Masato Nakamura
- Aizawa Comprehensive Cancer Center, Aizawa Hospital, Nagano, Japan
| | | | - Hiroaki Tanioka
- Department of Medical Oncology, Japan Labour Health and Welfare Organization Okayama Rosai Hospital, Okayama, Japan
| | - Akinori Takagane
- Department of Surgery, Hakodate Goryoukaku Hospital, Hokkaido, Japan
| | - Satoshi Tani
- Department of Internal Medicine, Konan Hospital, Hyogo, Japan
| | - Tatsuro Yamaguchi
- Department of Surgery, Tokyo Metropolitan Cancer and Infections Diseases Center Komagome Hospital, Tokyo, Japan
| | | | - Masahiro Takeuchi
- Department of Clinical Medicine (Biostatistics), Kitasato University School of Pharmacy, Tokyo, Japan
| | - Masashi Fujii
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
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Ballesteros Cánovas JA, Stoffel M, Corona C, Schraml K, Gobiet A, Tani S, Sinabell F, Fuchs S, Kaitna R. Debris-flow risk analysis in a managed torrent based on a stochastic life-cycle performance. Sci Total Environ 2016; 557-558:142-153. [PMID: 26994802 DOI: 10.1016/j.scitotenv.2016.03.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 03/07/2016] [Accepted: 03/07/2016] [Indexed: 06/05/2023]
Abstract
Two key factors can affect the functional ability of protection structures in mountains torrents, namely (i) infrastructure maintenance of existing infrastructures (as a majority of existing works is in the second half of their life cycle), and (ii) changes in debris-flow activity as a result of ongoing and expected future climatic changes. Here, we explore the applicability of a stochastic life-cycle performance to assess debris-flow risk in the heavily managed Wartschenbach torrent (Lienz region, Austria) and to quantify associated, expected economic losses. We do so by considering maintenance costs to restore infrastructure in the aftermath of debris-flow events as well as by assessing the probability of check dam failure (e.g., as a result of overload). Our analysis comprises two different management strategies as well as three scenarios defining future changes in debris-flow activity resulting from climatic changes. At the study site, an average debris-flow frequency of 21 events per decade was observed for the period 1950-2000; activity at the site is projected to change by +38% to -33%, according to the climate scenario used. Comparison of the different management alternatives suggests that the current mitigation strategy will allow to reduce expected damage to infrastructure and population almost fully (89%). However, to guarantee a comparable level of safety, maintenance costs is expected to increase by 57-63%, with an increase of maintenance costs by ca. 50% for each intervention. Our analysis therefore also highlights the importance of taking maintenance costs into account for risk assessments realized in managed torrent systems, as they result both from progressive and event-related deteriorations. We conclude that the stochastic life-cycle performance adopted in this study represents indeed an integrated approach to assess the long-term effects and costs of prevention structures in managed torrents.
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Affiliation(s)
- J A Ballesteros Cánovas
- Dendrolab.ch. Institute for Geological Sciences, University of Bern, Baltzerstrasse 1+3, CH-3012 Bern, Switzerland; Climate Change an Climate Impacts (C3i) Institute for Environmental Sciences, University of Geneva, 66 Boulevard Carl-Vogt, CH-1205 Geneva, Switzerland.
| | - M Stoffel
- Dendrolab.ch. Institute for Geological Sciences, University of Bern, Baltzerstrasse 1+3, CH-3012 Bern, Switzerland; Climate Change an Climate Impacts (C3i) Institute for Environmental Sciences, University of Geneva, 66 Boulevard Carl-Vogt, CH-1205 Geneva, Switzerland; Department of Earth Sciences, University of Geneva, 13 rue des Maraîchers, CH-1205 Geneva, Switzerland
| | - C Corona
- Centre National de la Recherche Scientifique (CNRS) UMR6042 Geolab, 4 rue Ledru, F-63057 Clermont-Ferrand Cedex, France
| | - K Schraml
- Institute for Alpine Hazards, University of Natural Resources and Life Sciences, Vienna (BOKU), A-1190 Vienna, Austria
| | - A Gobiet
- University of Graz, Wegener Center for Climate and Global Change (WegCenter), A-8010 Graz, Austria; Central Office for Meteorology and Geodynamics (ZAMG), A-1190 Vienna, Austria
| | - S Tani
- University of Graz, Wegener Center for Climate and Global Change (WegCenter), A-8010 Graz, Austria
| | - F Sinabell
- Austrian Institute of Economic Research, A-1030 Vienna, Austria
| | - S Fuchs
- Institute for Alpine Hazards, University of Natural Resources and Life Sciences, Vienna (BOKU), A-1190 Vienna, Austria
| | - R Kaitna
- Institute for Alpine Hazards, University of Natural Resources and Life Sciences, Vienna (BOKU), A-1190 Vienna, Austria
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Tani S. [Sports-Related Head Injuries]. No Shinkei Geka 2016; 44:537-543. [PMID: 27384113 DOI: 10.11477/mf.1436203328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- Satoshi Tani
- Department of Neurosurgery, Jikei University School of Medicine
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Tani S, Piñeiro C, Koketsu Y. Recurrence patterns and factors associated with regular, irregular, and late return to service of female pigs and their lifetime performance on southern European farms. J Anim Sci 2016; 94:1924-32. [PMID: 27285690 DOI: 10.2527/jas.2016-0302] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A return-to-service occurrence increases nonproductive days of female pigs and decreases herd productivity. The objectives of the present study were 1) to characterize 3 return types based on reservice intervals in female pigs on southern European farms, 2) to determine return risks and recurrence patterns for these types of returns, and 3) to assess lifetime performance of females with the 3 types of returns. We analyzed 653,528 service records and lifetime records of 114,906 females on 125 farms between 2008 and 2013. Reservice intervals were categorized into 3 groups: regular returns (RR: 18 to 24 d), irregular returns (IR: 25 to 38 d), and late returns (LR: 39 d or later). Multilevel generalized linear models were applied to the data. There were 64,385 reservice records (9.9%), with mean risks of RR, IR, and LR per service (±SEM) of 3.6% ± 0.06%, 2.5% ± 0.05%, and 3.0% ± 0.06%, respectively. Of the 43,931 first-returned females, 32.7% had a second return in the same or later parity. Also, 18.8%, 10.2%, and 11.6% of females that had RR, IR, and LR first returns, respectively, had a second return of the same return type. Summer servicing was associated with greater RR, IR, and LR risks in gilts. Also, increased gilt age at first mating was associated with RR ( = 0.03) and LR risk ( < 0.01) but not with IR risk ( = 0.53). For sows, factors associated with greater RR, IR, or LR risks were summer servicing, lower parity, farrowing more stillborn piglets, and having a weaning-to-first-mating interval of 7 d or more ( < 0.01). In lifetime, 33.5% of serviced females had 1 or more returns. These returned females had 41.5 more lifetime nonproductive days than nonreturn females but also 1.9 more lifetime pigs born alive ( < 0.01). We recommend that producers closely monitor females in high-risk groups to reduce their return-to-service intervals.
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Terao T, Kato N, Ishii T, Hatano K, Takeishi H, Kakizaki S, Tani S, Murayama Y. Spontaneous Hemorrhage of a Spinal Ependymoma in the Filum Terminale Presenting with Acute Cauda Equina Syndrome: Case Report. NMC Case Rep J 2016; 3:91-95. [PMID: 28664006 PMCID: PMC5386174 DOI: 10.2176/nmccrj.cr.2015-0295] [Citation(s) in RCA: 8] [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: 12/08/2015] [Accepted: 02/29/2016] [Indexed: 11/20/2022] Open
Abstract
We present a rare case of spontaneous hemorrhage of a spinal ependymoma in the filum terminale presenting with acute cauda equina syndrome. A 16-year-old male presented with a sudden onset of severe back pain that began 10 days before hospitalization. This symptom progressed, followed by development of decreased sensation in the lower extremities, bladder dysfunction, and motor weakness that advanced to an inability to walk. Spinal magnetic resonance imaging revealed a hemorrhagic mass from Th12 to L2 and L4 to L5, and clinical signs indicated acute cauda equina compression. One day after admission to the hospital, emergency surgery was performed. A spinal tumor in the conus portion with a spinal subarachnoid hemorrhage was seen. Gross total excision of the massive hematoma mixed with the underlying tumor was performed. Pathological findings of the excised tumor demonstrated a WHO Grade II cellular ependymoma of the non-myxopapillary type. The patient made a significant recovery. The ability to walk was restored, and impaired bladder function improved at follow-up. Early diagnosis and suitable treatment are associated with a more favorable outcome.
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Affiliation(s)
- Tohru Terao
- Department of Neurosurgery, Atsugi City Hospital, Atsugi, Japan
| | - Naoki Kato
- Department of Neurosurgery, Atsugi City Hospital, Atsugi, Japan
| | - Takuya Ishii
- Department of Neurosurgery, Atsugi City Hospital, Atsugi, Japan
| | - Keisuke Hatano
- Department of Neurosurgery, Atsugi City Hospital, Atsugi, Japan
| | | | - Shota Kakizaki
- Department of Neurosurgery, Atsugi City Hospital, Atsugi, Japan
| | - Satoshi Tani
- Department of Neurosurgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Yuichi Murayama
- Department of Neurosurgery, The Jikei University School of Medicine, Tokyo, Japan
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Bakaeva ZV, Sangadzhieva AD, Tani S, Myasoedov NF, Andreeva LA, Torshin VI, Wallace JL, Tanaka T. Glyprolines exert protective and repair-promoting effects in the rat stomach: potential role of the cytokine GRO/CINC-1. J Physiol Pharmacol 2016; 67:253-260. [PMID: 27226185] [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] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Accepted: 02/01/2016] [Indexed: 06/05/2023]
Abstract
Glyprolines have been reported to exert protective effects in the stomach. In this study, we examined the potential effects of intranasal administration of Pro-Gly-Pro (PGP) and N-acetyl-Pro-Gly-Pro (AcPGP) on experimental gastric ulcer formation and healing. We also studied gastric release of the cytokine GRO/CINC-1, and its potential role in ulcer development and healing. Gastric ulcers were induced in rats by applying acetic acid to the serosa of the stomach. PGP and AcPGP were then administered at a dose of 3.7 μmol/kg once daily on either days 1 - 3 (ulcer formation) or days 4 - 6 (ulcer healing). Measurement of ulcer area and histological examination of gastric tissue were carried out on days 4 and 7 after application of acetic acid. In vitro studies involved addition of the glyprolines to cultured rat gastric epithelial cells with or without lipopolysaccharide. Reverse transcription PCR, real-time PCR and ELISA were used for cytokine analysis. PGP and AcPGP significantly reduced ulcer areas on the 4(th) day and accelerated the healing on the 7(th) day compared with the control. After acetic acid-induced ulceration, the expression of GRO/CINC-1 mRNA in gastric tissue was increased 9-fold versus the sham-operated group. Treatment with PGP or AcPGP both significantly suppressed the expression of GRO/CINC-1 mRNA in gastric tissue. However, the glyprolines did not alter LPS-induced mRNA expression or release of GRO/CINC-1 from cultured rat gastric epithelial cells, even though those cells were harvested from rats subjected to the ulcer-induction procedure. The results of this study show that intranasal administration of PGP and AcPGP significantly increased resistance against acetic acid-induced ulceration and accelerated healing in the rats. These effects may be due, at least in part, to their ability to reduce the acetic acid-induced GRO/CINC-1 expression and production in gastric tissue.
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Affiliation(s)
- Z V Bakaeva
- Scientific Research Institute of Pediatrics, Scientific Center of Children's Health of the Ministry of Health of the Russian Federation, Moscow, Russia.
- Department of Physiology Medical Institute, People's Friendship University of Russia, Moscow, Russia
| | - A D Sangadzhieva
- Department of Human and Animal Physiology, Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
| | - S Tani
- Department of Pharmaceutical and Health Sciences, Faculty of Pharmaceutical Sciences, Josai University, Sakado, Saitama, Japan
| | - N F Myasoedov
- Department of Chemistry of Physiologically Active Compounds, Institute of Molecular Genetics, Russian Academy of Sciences, Moscow, Russia
| | - L A Andreeva
- Department of Chemistry of Physiologically Active Compounds, Institute of Molecular Genetics, Russian Academy of Sciences, Moscow, Russia
| | - V I Torshin
- Department of Physiology Medical Institute, People's Friendship University of Russia, Moscow, Russia
| | - J L Wallace
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
| | - T Tanaka
- Department of Pharmaceutical and Health Sciences, Faculty of Pharmaceutical Sciences, Josai University, Sakado, Saitama, Japan
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Sunakawa Y, Ichikawa W, Tsuji A, Denda T, Segawa Y, Negoro Y, Shimada K, Kochi M, Nakamura M, Kotaka M, Tanioka H, Takagane A, Tani S, Yamaguchi T, Takeuchi M, Fujii M, Nakajima T. Prognostic impact of primary tumor location on survival time in patients (pts) with metastatic colorectal cancer (mCRC) treated with cetuximab plus oxaliplatin-based chemotherapy: A subgroup analysis of the JACCRO CC-05/06. J Clin Oncol 2016. [DOI: 10.1200/jco.2016.34.4_suppl.613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
613 Background: Sub-analyses of US and European randomized trials have demonstrated that primary tumor location is a critical prognostic factor in mCRC treated with 1st-line chemotherapy; moreover, left-sided tumor location may be a predictor of cetuximab efficacy in KRAS exon 2 wild-type tumors (Loupakis F, et al. J Natl Cancer Inst 2015; von Einem JC, et al. J Cancer Res Clin Oncol 2014). We therefore investigated the prognostic impact of primary tumor location on outcomes of Japanese pts enrolled in JACCRO CC-05 or CC-06 trial, which evaluated efficacy of cetuximab in combination with FOLFOX or SOX, respectively, for mCRC with KRAS exon 2 wild-type tumors. Methods: This study evaluated the association of tumor location with overall survival (OS) and progression-free survival (PFS) in mCRC pts from 2 phase II trials of 1st-line therapy; JACCRO CC-05 of cetuximab plus FOLFOX (n= 57, UMIN000004197) and CC-06 of cetuximab plus SOX (n= 67, UMIN000007022). Tumors proximal or from left flexure to rectum were defined as right-sided or left-sided, respectively. Results: In total of 124 pts of the 2 trials, 110 pts were assessable for the primary tumor location: 90 pts with left-sided tumors and 20 pts with right-sided tumors. In the population consists of 110 evaluable pts, median PFS was 9.4 months, and median OS was 33.9 months. Left-sided tumors were significantly associated with longer OS (36.2 months vs. 12.6 months, HR 0.28, 95%CI 0.15-0.53, p< 0.0001) and PFS (11.1 months vs. 5.6 months, HR 0.47, 95%CI 0.29-0.82, p= 0.0041) compared to right-sided tumors. The association was evident in the group of FOLFOX (p< 0.0001 for OS and p= 0.0002 for PFS), while there was a trend in OS of the group of SOX (p= 0.079). In the FOLFOX-group, median OS and PFS were 5.7 and 3.0 months, respectively, for right-sided tumors (n= 9) and 42.8 and 11.3 months, respectively, for left-sided tumors (n= 43). Conclusions: Our study demonstrates that primary tumor location may serve as a predictor of prognosis of mCRC pts treated with cetuximab plus oxaliplatin-based therapy, potentially confirming the prognostic impact of tumor location.
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Affiliation(s)
- Yu Sunakawa
- Division of Medical Oncology, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Wataru Ichikawa
- Division of Medical Oncology, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Akihito Tsuji
- Department of Clinical Oncology, Kagawa University Faculty of Medicine, Kagawa, Japan
| | | | - Yoshihiko Segawa
- Department of Medical Oncology, Saitama Medical University International Medical Center, Hidaka, Japan
| | | | - Ken Shimada
- Division of Medical Oncology, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | | | | | - Hiroaki Tanioka
- Department of Medical Oncology, Okayama Rosai Hospital, Okayama, Japan
| | | | - Satoshi Tani
- Department of Medical Oncology, Kohnan Hospital, Kobe, Japan
| | - Tatsuro Yamaguchi
- Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - Masahiro Takeuchi
- Department of Clinical Medicine, Kitasato University School of Pharmacy, Tokyo, Japan
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Iwase S, Tani S, Saeki Y, Tuda M, Haran J, Skuhrovec J, Takagi M. Dynamics of infection with Wolbachia in Hypera postica (Coleoptera: Curculionidae) during invasion and establishment. Biol Invasions 2015. [DOI: 10.1007/s10530-015-0985-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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