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Yoshimura S, Kiguchi T, Nishioka N, Ikeda N, Takegawa M, Miyamae N, Sumida Y, Kitamura T, Iwami T. Association of pre-hospital tracheal intubation with outcomes after out-of-hospital cardiac arrest by drowning comparing to supraglottic airway device: A nationwide propensity score-matched cohort study. Resuscitation 2024; 197:110129. [PMID: 38280506 DOI: 10.1016/j.resuscitation.2024.110129] [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: 11/06/2023] [Revised: 01/22/2024] [Accepted: 01/22/2024] [Indexed: 01/29/2024]
Abstract
AIM OF THE STUDY This study aimed to compare the survival outcomes of adult patients with out-of-hospital cardiac arrest (OHCA) by drowning who were treated with either endotracheal intubation (ETI) or a supraglottic airway (SGA) device. METHODS We compared the outcomes of patients with OHCA by drowning according to airway management using a Japanese nationwide population-based registry (All-Japan Utstein Registry). Adult patients with OHCA treated in 2014-2020 with advanced airway management (ETI or SGA) were included. Patients who received ETI during cardiopulmonary resuscitation were matched with those treated with SGA based on propensity scores in a 1:1 ratio with a 0.2 calliper width. The outcome measures were the return of spontaneous circulation (ROSC), survival at one month, and favourable neurological outcomes defined as a Cerebral Performance Category Scale score of 1 or 2. RESULTS Of the 11,703 eligible patients, 4,467 (38.2%) and 7,236 (61.8%) underwent ETI and SGA, respectively. A total of 3,566 patients in each cohort were matched. The ROSC rate was higher in those treated with ETI versus SGA (207/3,566 [5.8%] versus 167/3,566 [4.7%], respectively; adjusted odds ratio, 1.25; 95% confidence interval [CI], 1.02-1.55). There was no intergroup difference in one-month survival or favourable neurological outcome (32/3566 [0.90%] versus 34/3566 [0.95%]; odds ratio, 0.94; 95% CI, 0.58-1.53; and 9/3566 [0.25%] versus 8/3566 [0.22%]; odds ratio, 1.13; 95% CI, 0.43-2.92), respectively. CONCLUSIONS In this propensity score-matched study of adult OHCA by drowning, ETI compared to SGA was associated with ROSC but not associated with survival and favourable neurological outcomes at one month.
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Affiliation(s)
- Satoshi Yoshimura
- Department of Emergency Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan; Department of Preventive Services, Kyoto University School of Public Health, Kyoto, Japan
| | - Takeyuki Kiguchi
- Critical Care and Trauma Center, Osaka General Medical Center, Osaka, Japan
| | - Norihiro Nishioka
- Department of Preventive Services, Kyoto University School of Public Health, Kyoto, Japan
| | - Nobuhiro Ikeda
- Department of Emergency Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan
| | - Masayasu Takegawa
- Department of Emergency Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan
| | - Nobuhiro Miyamae
- Department of Emergency Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan
| | - Yasuyuki Sumida
- Department of Emergency Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan
| | - Tetsuhisa Kitamura
- Division of Environmental Medicine and Population Sciences, Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Taku Iwami
- Department of Preventive Services, Kyoto University School of Public Health, Kyoto, Japan.
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Kani K, Yoshimura S, Ikeda N, Miyamae N, Sumida Y. Awake Fiberoptic Tracheal Intubation in a Patient With Traumatic Retropharyngeal Hematoma. Cureus 2023; 15:e48813. [PMID: 38106694 PMCID: PMC10721434 DOI: 10.7759/cureus.48813] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2023] [Indexed: 12/19/2023] Open
Abstract
Retropharyngeal hematoma is a rare disease triggered by neck trauma and can result in airway obstruction, requiring early recognition and consideration of tracheal intubation. We present a case of a 42-year-old woman brought to the emergency department with dyspnea after a traffic trauma, and a mild stridor was heard on cervical auscultation, indicating airway compromise. Contrast-enhanced computed tomography (CT) scan showed retropharyngeal hematoma. Considering her obesity and short neck, we performed awake fiberoptic intubation successfully without any complications. Awake fiberoptic intubation, directly confirming anatomic abnormalities, may increase the success rate of intubation and prevent complications, especially in patients at high risk for cannot intubate, cannot ventilate (CICV). Cervical auscultation may contribute to early diagnosis and treatment for airway obstruction in patients with cervical trauma. We report a case of awake fiberoptic tracheal intubation for a retropharyngeal hematoma in a patient at high risk for CICV and cervical auscultation in a primary survey.
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Affiliation(s)
- Keigo Kani
- Emergency Medicine, Rakuwakai Otowa Hospital, Kyoto, JPN
| | - Satoshi Yoshimura
- Preventive Services, Kyoto University, Kyoto, JPN
- Emergency Medicine, Rakuwakai Otowa Hospital, Kyoto, JPN
| | - Nobuhiro Ikeda
- Emergency Medicine, Rakuwakai Otowa Hospital, Kyoto, JPN
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Takegawa M, Yoshimura S, Ikeda N, Miyamae N, Sumida Y. Morel-Lavallée Lesion in a Female Breast: A Case Report. Cureus 2023; 15:e42979. [PMID: 37671210 PMCID: PMC10476010 DOI: 10.7759/cureus.42979] [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] [Accepted: 08/04/2023] [Indexed: 09/07/2023] Open
Abstract
Morel-Lavalée lesions (MLLs) are caused by closed degloving injuries that mostly occur in the thigh, flank, and buttocks. We report a rare case of an MLL in the breast that was successfully treated with surgical removal in the acute phase. A 57-year-old woman sustained a breast injury from a seatbelt in a motor vehicle accident. Contrast-enhanced CT was performed, and the patient was diagnosed with an MLL in her breast. Surgical removal was performed after five days, and the patient was discharged six days postoperatively. No recurrence was observed, and the cosmetic results were good at six months postoperatively. Early detection and treatment of MLL in the female breast are critical to avoid recurrence and ensure good cosmetic outcomes.
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Affiliation(s)
| | - Satoshi Yoshimura
- Department of Preventive Services, Kyoto University, Kyoto, JPN
- Department of Emergency Medicine, Rakuwakai Otowa Hospital, Kyoto, JPN
| | - Nobuhiro Ikeda
- Department of Emergency Medicine, Rakuwakai Otowa Hospital, Kyoto, JPN
| | - Nobuhiro Miyamae
- Department of Emergency Medicine, Rakuwakai Otowa Hospital, Kyoto, JPN
| | - Yasuyuki Sumida
- Department of Emergency Medicine, Rakuwakai Otowa Hospital, Kyoto, JPN
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Nishiyama D, Yoshimura S, Shimizuhira C, Ikeda N, Miyamae N, Sumida Y. Elsberg syndrome caused by herpes zoster in the sacral region with preceding urinary retention. Acute Med Surg 2023; 10:e824. [PMID: 36844677 PMCID: PMC9949514 DOI: 10.1002/ams2.824] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 02/06/2023] [Indexed: 02/25/2023] Open
Abstract
Background Elsberg syndrome (ES) is an acute-onset lumbosacral radiculitis with myelitis caused by a herpes virus infection. Case Presentation We present a case of a 77-year-old woman who was admitted with urinary retention prior to genital rash. The patient was diagnosed with ES and treated with intravenous acyclovir 250 mg every 8 h for 1 week. Conclusion Physicians should consider ES in patients with voiding dysfunction, as preceding neurological symptoms may lead to a misdiagnosis. Considering the adverse effects of the antiviral drug, its dosage should be according to the causative virus of the ES as well as the patient's age and medical history.
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Affiliation(s)
- Daiki Nishiyama
- Department of Emergency MedicineRakuwakai Otowa HospitalKyotoJapan
| | | | | | - Nobuhiro Ikeda
- Department of Emergency MedicineRakuwakai Otowa HospitalKyotoJapan
| | - Nobuhiro Miyamae
- Department of Emergency MedicineRakuwakai Otowa HospitalKyotoJapan
| | - Yasuyuki Sumida
- Department of Emergency MedicineRakuwakai Otowa HospitalKyotoJapan
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5
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Hagihara M, Hayashi H, Nakajima S, Imai Y, Nakano H, Uchida T, Inoue M, Miyawaki M, Ikeda N, Konuma R, Atsuta Y, Tanaka M, Imamura A. [Outcomes of COVID-19 due to omicron variant infection complicated with hematological disorders]. Rinsho Ketsueki 2023; 64:3-8. [PMID: 36775303 DOI: 10.11406/rinketsu.64.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
When the omicron variant became the most dominant severe acute respiratory syndrome coronavirus 2 (SARS-Cov-2) variant causing coronavirus disease 2019 (COVID-19) in Japan, 11 patients with hematological diseases infected with this new variant were treated at our institution. Among them, four of the five patients who had been treated with chemotherapy progressed to moderate-II COVID-19, and two of them died. In contrast, five of the six patients who did not receive the treatment remained at mild to moderate-I stage of COVID-19, except for a single case progressing to moderate-II COVID-19. While all four patients infused with anti-coronavirus monoclonal antibodies within 8 days after the onset survived, the other two patients, being withheld from treatment or treated later, died. In these two cases, anti-SARS-Cov-2 immunoglobulin G antibodies remained at low titers. Although the omicron variant is considered a less harmful SARS-Cov-2 variant, patients with hematological disorders, particularly those who are immunosuppressed caused by chemotherapy, should be continuously cared for as they remain at a higher risk of severe COVID-19 due to insufficient or delayed anti-viral humoral immunity development. Thus, the rapid introduction of antiviral monoclonal antibodies together with anti-viral reagents may rescue these patients.
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Affiliation(s)
| | | | | | - Yui Imai
- Department of Hematology, Eiju General Hospital
| | | | | | | | | | | | - Ryosuke Konuma
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yuya Atsuta
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Masaru Tanaka
- Division of Infectious Disease, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Akifumi Imamura
- Division of Infectious Disease, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
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6
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Wakayama Y, Yoshimura S, Hanabusa K, Ikeda N, Miyamae N, Sumida Y. Torsades de pointes due to oral sitafloxacin. Acute Med Surg 2023; 10:e910. [PMID: 38130355 PMCID: PMC10733777 DOI: 10.1002/ams2.910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/17/2023] [Accepted: 11/27/2023] [Indexed: 12/23/2023] Open
Affiliation(s)
- Yugo Wakayama
- Department of Emergency MedicineRakuwakai Otowa HospitalKyotoJapan
| | | | | | - Nobuhiro Ikeda
- Department of Emergency MedicineRakuwakai Otowa HospitalKyotoJapan
| | - Nobuhiro Miyamae
- Department of Emergency MedicineRakuwakai Otowa HospitalKyotoJapan
| | - Yasuyuki Sumida
- Department of Emergency MedicineRakuwakai Otowa HospitalKyotoJapan
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Watanabe T, Watanabe Y, Ikeda N, Aihara M, Yamaguchi Y. 107 Serum levels of C-C motif chemokine ligand 2 and interleukin-8 as possible biomarkers in patients with toxic epidermal necrolysis accompanied by acute respiratory distress syndrome. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.117] [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: 11/19/2022]
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Takada I, Miyazaki T, Kanzawa H, Shigefuku S, Namikawa-Kanai H, Matsubara T, Ono S, Nakajima E, Morishita Y, Honda A, Furukawa K, Ikeda N. EP16.04-009 The Proliferative Effect of 27-Hydroxycholesterol as a Selective Estrogen Receptor Modulator on Pathology of NSCLC. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.1117] [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: 11/26/2022]
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9
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Nakajima E, Sugita M, Morishita Y, Miyazaki T, Kanzawa H, Kawaguchi Y, Ono S, Hirsch F, Ikeda N, Furukawa K. EP16.03-029 SLIT2 Expression in NSCLC With Long-Term Response to Pemetrexed. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.1090] [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: 10/14/2022]
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Doi T, Patel M, Falchook G, Koyama T, Friedman C, Piha-Paul S, Gutierrez M, Abdul-Karim R, Awad M, Adkins D, Takahashi S, Kadowaki S, Cheng B, Ikeda N, Laadem A, Yoshizuka N, Qian M, Dosunmu O, Arkenau HT, Johnson M. 453O DS-7300 (B7-H3 DXd antibody-drug conjugate [ADC]) shows durable antitumor activity in advanced solid tumors: Extended follow-up of a phase I/II study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.582] [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: 11/01/2022] Open
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Ohno Y, Aoyagi K, Arakita K, Doi Y, Kondo M, Banno S, Kasahara K, Ogawa T, Kato H, Hase R, Kashizaki F, Nishi K, Kamio T, Mitamura K, Ikeda N, Nakagawa A, Fujisawa Y, Taniguchi A, Ikeda H, Hattori H, Murayama K, Toyama H. Response to RMED-D-22-00,258.R1. Jpn J Radiol 2022; 40:860-861. [PMID: 35751793 PMCID: PMC9243983 DOI: 10.1007/s11604-022-01308-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 06/11/2022] [Indexed: 11/02/2022]
Affiliation(s)
- Yoshiharu Ohno
- Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan. .,Joint Research Laboratory of Advanced Medical Imaging, Fujita Health University School of Medicine, Toyoake, Japan.
| | - Kota Aoyagi
- Canon Medical Systems Corporation, Otawara, Japan
| | | | - Yohei Doi
- Departments of Microbiology and Infectious Diseases, Fujita Health University School of Medicine, Toyoake, Japan.,Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Masashi Kondo
- Department of Respiratory Medicine, Fujita Health University School of Medicine, Toyoake, Japan.,Center for Clinical Trial and Research Support, Fujita Health University School of Medicine, Toyoake, Japan
| | - Sumi Banno
- Center for Clinical Trial and Research Support, Fujita Health University School of Medicine, Toyoake, Japan
| | - Kei Kasahara
- Center for Infectious Diseases, Nara Medical University, Kashihara, Japan
| | - Taku Ogawa
- Center for Infectious Diseases, Nara Medical University, Kashihara, Japan
| | - Hideaki Kato
- Infection Prevention and Control Department, Yokohama City University Hospital, Yokohama, Japan
| | - Ryota Hase
- Department of Infectious Diseases, Japanese Red Cross Narita Hospital, Narita, Japan
| | - Fumihiro Kashizaki
- Department of Respiratory Medicine, Isehara Kyodo Hospital, Isehara, Japan
| | - Koichi Nishi
- Department of Respiratory Medicine, Ishikawa Prefectural Central Hospital, Kanazawa, Japan
| | - Tadashi Kamio
- Department of Intensive Care, Shonan Kamakura General Hospital, Kamakura, Japan
| | - Keiko Mitamura
- Division of Infection Control, Eiju General Hospital, Tokyo, Japan
| | - Nobuhiro Ikeda
- Department of General Internal Medicine, Eiju General Hospital, Tokyo, Japan
| | - Atsushi Nakagawa
- Department of Respiratory Medicine, Kobe City Medical Center General Hospital, Kobe, Japan
| | | | | | - Hidetake Ikeda
- Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Hidekazu Hattori
- Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Kazuhiro Murayama
- Joint Research Laboratory of Advanced Medical Imaging, Fujita Health University School of Medicine, Toyoake, Japan
| | - Hiroshi Toyama
- Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan
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12
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Ohno Y, Aoyagi K, Arakita K, Doi Y, Kondo M, Banno S, Kasahara K, Ogawa T, Kato H, Hase R, Kashizaki F, Nishi K, Kamio T, Mitamura K, Ikeda N, Nakagawa A, Fujisawa Y, Taniguchi A, Ikeda H, Hattori H, Murayama K, Toyama H. Newly developed artificial intelligence algorithm for COVID-19 pneumonia: utility of quantitative CT texture analysis for prediction of favipiravir treatment effect. Jpn J Radiol 2022; 40:800-813. [PMID: 35396667 PMCID: PMC8993669 DOI: 10.1007/s11604-022-01270-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 12/14/2021] [Accepted: 03/12/2022] [Indexed: 01/08/2023]
Abstract
Purpose Using CT findings from a prospective, randomized, open-label multicenter trial of favipiravir treatment of COVID-19 patients, the purpose of this study was to compare the utility of machine learning (ML)-based algorithm with that of CT-determined disease severity score and time from disease onset to CT (i.e., time until CT) in this setting. Materials and methods From March to May 2020, 32 COVID-19 patients underwent initial chest CT before enrollment were evaluated in this study. Eighteen patients were randomized to start favipiravir on day 1 (early treatment group), and 14 patients on day 6 of study participation (late treatment group). In this study, percentages of ground-glass opacity (GGO), reticulation, consolidation, emphysema, honeycomb, and nodular lesion volumes were calculated as quantitative indexes by means of the software, while CT-determined disease severity was also visually scored. Next, univariate and stepwise regression analyses were performed to determine relationships between quantitative indexes and time until CT. Moreover, patient outcomes determined as viral clearance in the first 6 days and duration of fever were compared for those who started therapy within 4, 5, or 6 days as time until CT and those who started later by means of the Kaplan–Meier method followed by Wilcoxon’s signed-rank test. Results % GGO and % consolidation showed significant correlations with time until CT (p < 0.05), and stepwise regression analyses identified both indexes as significant descriptors for time until CT (p < 0.05). When divided all patients between time until CT of 4 days and that of more than 4 days, accuracy of the combined quantitative method (87.5%) was significantly higher than that of the CT disease severity score (62.5%, p = 0.008). Conclusion ML-based CT texture analysis is equally or more useful for predicting time until CT for favipiravir treatment on COVID-19 patients than CT disease severity score.
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Affiliation(s)
- Yoshiharu Ohno
- Department of Radiology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan. .,Joint Research Laboratory of Advanced Medical Imaging, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan.
| | - Kota Aoyagi
- Canon Medical Systems Corporation, Otawara, Japan
| | | | - Yohei Doi
- Departments of Microbiology and Infectious Diseases, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan.,Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Masashi Kondo
- Department of Respiratory Medicine, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan.,Center for Clinical Trial and Research Support, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Sumi Banno
- Center for Clinical Trial and Research Support, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Kei Kasahara
- Center for Infectious Diseases, Nara Medical University, Kashihara, Japan
| | - Taku Ogawa
- Center for Infectious Diseases, Nara Medical University, Kashihara, Japan
| | - Hideaki Kato
- Infection Prevention and Control Department, Yokohama City University Hospital, Yokohama, Japan
| | - Ryota Hase
- Department of Infectious Diseases, Japanese Red Cross Narita Hospital, Narita, Japan
| | - Fumihiro Kashizaki
- Department of Respiratory Medicine, Isehara Kyodo Hospital, Isehara, Japan
| | - Koichi Nishi
- Department of Respiratory Medicine, Ishikawa Prefectural Central Hospital, Kanazawa, Japan
| | - Tadashi Kamio
- Department of Intensive Care, Shonan Kamakura General Hospital, Kamakura, Japan
| | - Keiko Mitamura
- Division of Infection Control, Eiju General Hospital, Tokyo, Japan
| | - Nobuhiro Ikeda
- Department of General Internal Medicine, Eiju General Hospital, Tokyo, Japan
| | - Atsushi Nakagawa
- Department of Respiratory Medicine, Kobe City Medical Center General Hospital, Kobe, Japan
| | | | | | - Hirotaka Ikeda
- Department of Radiology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Hidekazu Hattori
- Department of Radiology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Kazuhiro Murayama
- Joint Research Laboratory of Advanced Medical Imaging, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Hiroshi Toyama
- Department of Radiology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
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13
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Pattinson D, Jester P, Guan L, Yamayoshi S, Chiba S, Presler R, Rao H, Iwatsuki-Horimoto K, Ikeda N, Hagihara M, Uchida T, Mitamura K, Halfmann P, Neumann G, Kawaoka Y. A Novel Method to Reduce ELISA Serial Dilution Assay Workload Applied to SARS-CoV-2 and Seasonal HCoVs. Viruses 2022; 14:v14030562. [PMID: 35336970 PMCID: PMC8955134 DOI: 10.3390/v14030562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/16/2022] [Accepted: 03/03/2022] [Indexed: 02/04/2023] Open
Abstract
Assays using ELISA measurements on serially diluted serum samples have been heavily used to measure serum reactivity to SARS-CoV-2 antigens and are widely used in virology and elsewhere in biology. We test a method using Bayesian hierarchical modelling to reduce the workload of these assays and measure reactivity of SARS-CoV-2 and HCoV antigens to human serum samples collected before and during the COVID-19 pandemic. Inflection titers for SARS-CoV-2 full-length spike protein (S1S2), spike protein receptor-binding domain (RBD), and nucleoprotein (N) inferred from 3 spread-out dilutions correlated with those inferred from 8 consecutive dilutions with an R2 value of 0.97 or higher. We confirm existing findings showing a small proportion of pre-pandemic human serum samples contain cross-reactive antibodies to SARS-CoV-2 S1S2 and N, and that SARS-CoV-2 infection increases serum reactivity to the beta-HCoVs OC43 and HKU1 S1S2. In serial dilution assays, large savings in resources and/or increases in throughput can be achieved by reducing the number of dilutions measured and using Bayesian hierarchical modelling to infer inflection or endpoint titers. We have released software for conducting these types of analysis.
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Affiliation(s)
- David Pattinson
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA; (D.P.); (P.J.); (L.G.); (S.C.); (R.P.); (H.R.); (P.H.); (G.N.)
| | - Peter Jester
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA; (D.P.); (P.J.); (L.G.); (S.C.); (R.P.); (H.R.); (P.H.); (G.N.)
| | - Lizheng Guan
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA; (D.P.); (P.J.); (L.G.); (S.C.); (R.P.); (H.R.); (P.H.); (G.N.)
| | - Seiya Yamayoshi
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo 108-0071, Japan; (S.Y.); (K.I.-H.)
- The Research Center for Global Viral Diseases, Research Institute, National Center for Global Health and Medicine, Tokyo 162-8665, Japan
| | - Shiho Chiba
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA; (D.P.); (P.J.); (L.G.); (S.C.); (R.P.); (H.R.); (P.H.); (G.N.)
| | - Robert Presler
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA; (D.P.); (P.J.); (L.G.); (S.C.); (R.P.); (H.R.); (P.H.); (G.N.)
| | - Hongyu Rao
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA; (D.P.); (P.J.); (L.G.); (S.C.); (R.P.); (H.R.); (P.H.); (G.N.)
| | - Kiyoko Iwatsuki-Horimoto
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo 108-0071, Japan; (S.Y.); (K.I.-H.)
| | - Nobuhiro Ikeda
- Department of General Internal Medicine, Eiju General Hospital, Tokyo 104-0045, Japan;
| | - Masao Hagihara
- Department of Hematology, Eiju General Hospital, Tokyo 104-0045, Japan; (M.H.); (T.U.)
| | - Tomoyuki Uchida
- Department of Hematology, Eiju General Hospital, Tokyo 104-0045, Japan; (M.H.); (T.U.)
| | - Keiko Mitamura
- Division of Infection Control, Eiju General Hospital, Tokyo 104-0045, Japan;
| | - Peter Halfmann
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA; (D.P.); (P.J.); (L.G.); (S.C.); (R.P.); (H.R.); (P.H.); (G.N.)
| | - Gabriele Neumann
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA; (D.P.); (P.J.); (L.G.); (S.C.); (R.P.); (H.R.); (P.H.); (G.N.)
| | - Yoshihiro Kawaoka
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA; (D.P.); (P.J.); (L.G.); (S.C.); (R.P.); (H.R.); (P.H.); (G.N.)
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo 108-0071, Japan; (S.Y.); (K.I.-H.)
- Department of Special Pathogens, International Research Center for Infectious Diseases, Institute of Medical Science, University of Tokyo, Tokyo 108-0071, Japan
- Correspondence: ; Tel.: +1-608-265-4925
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14
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Fujii Y, Ikeda N, Onoe Y, Kanai Y, Hayakawa T, Awaji D, Kodama J, Fukuda D, Alam AKMB, Dassanayake ABN. A case study on severe damage at a tunnel in serpentinite rock mass. SN Appl Sci 2022. [DOI: 10.1007/s42452-021-04924-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Abstract
Face squeezing, floor heave, and buckling of invert were found after a 10-day holiday in 2014 around the serpentinite face of a tunnel in Hokkaido, Japan. The damage continued for over 2 months, extending 400 m toward the entrance causing a massive roof fall. The tunnel was excavated again with a circular section and extra-thick shotcrete, and the face had crossed the damaged part 6 years after the damage occurred. Uniaxial and triaxial compression tests were carried out to obtain the mechanical properties of the serpentinite to clarify the severe damage mechanism at the tunnel. The main experimental findings are as follows. The uniaxial compressive strength of the serpentinite samples was very low, and the ratio of the strength to the estimated overburden pressure was extremely low. The parameter n indicated that the time-dependent deformation of the serpentinite was not large but the same as ordinary rocks. All specimens showed strain-hardening in the triaxial compression test, and the friction angle was very low by the brucite content. Only primary creep was observed in the multistage triaxial creep test. The pressure on the shotcrete from rock mass for the damaged tunnel was enough to cause creep deformation and failure of shotcrete. From the above findings, designing the concrete lining that can support the earth and water pressure is recommended for tunnel excavation in such a weak serpentinite rock mass, particularly with a very low friction angle by brucite.
Highlights
Face squeezing, floor heave, and buckling of invert were found after a 10-day holiday around the serpentinite face in Hokkaido, Japan.
The time-dependent deformation of the serpentinite was not large but the same as ordinary rocks.
All specimens showed strain-hardening in the triaxial compression test, and the friction angle was very low by the brucite content.
Only primary creep was observed in the multistage triaxial creep test.
The severe damage to the tunnel was not a brittle creep failure of the serpentinite rock mass itself but the shotcrete lining.
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15
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Tsutani Y, Ito M, Mimae T, Miyata Y, Shimada Y, Ito H, Ikeda N, Nakayama H, Okada M. MA08.03 Adjuvant Chemotherapy for Patients with High-Risk Stage I Lung Adenocarcinoma Stratified by Epidermal Growth Factor Receptor Mutation Status. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.148] [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: 10/20/2022]
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16
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Takei H, Kunitoh H, Wakabayashi M, Kataoka T, Mizutani T, Tsuboi M, Ikeda N, Asamura H, Okada M, Takahama M, Ohde Y, Okami J, Shiono S, Aokage K, Watanabe S. FP01.04 Prospective Observational Study of Activities of Daily Livings in Elderly Patients After Lung Cancer Surgery (JCOG1710A). J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.207] [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: 10/20/2022]
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17
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Matsubara H, Kimura T, Miyao R, Shin Y, Ikeda N. Relation between ionic surfactant concentration and thickness of foam film stabilized by ionic – nonionic surfactant mixed adsorbed films. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126915] [Citation(s) in RCA: 2] [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: 11/30/2022]
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18
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Ito M, Miyata Y, Tsutani Y, Ito H, Nakayama H, Imai K, Ikeda N, Okada M. MA09.09 EGFR Mutation Status Is a Risk of Recurrence in pN0–1 Lung Adenocarcinoma When Considering pStage and Histological Subtype. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.237] [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: 11/26/2022]
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19
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Shinada M, Saeki K, Yoshitake R, Eto S, Tsuboi M, Chambers JK, Uchida K, Kato D, Yoshimoto S, Kamoto S, Ikeda N, Kinoshita R, Fujita N, Nishimura R, Nakagawa T. Evaluation of epithelial and mesenchymal cell markers in canine urinary bladder transitional cell carcinoma. Vet J 2020; 266:105571. [PMID: 33323173 DOI: 10.1016/j.tvjl.2020.105571] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 10/21/2020] [Accepted: 11/03/2020] [Indexed: 02/07/2023]
Abstract
Canine transitional cell carcinoma (cTCC) is the most common malignant tumour in the urinary bladder: it is highly invasive and exhibits metastatic characteristics. Inflammation is also strongly related to cTCC. Epithelial tumours often exhibit a mesenchymal cell phenotype during tumour invasion and metastasis owing to epithelial-mesenchymal transition (EMT), which is often induced in chronic inflammation. The aim of this retrospective study was to investigate the expression of epithelial and mesenchymal cell markers in tumour cells and to evaluate its relationship with prognosis of cTCC. In this study, 29 dogs with cTCC who underwent surgical treatment were enrolled. Clinical parameters were reviewed using medical records. Tissue expression of epithelial and mesenchymal markers was evaluated by immunohistochemical analysis. The association between the expression of mesenchymal cell markers and clinical parameters, including prognosis, was statistically examined. In five normal bladder tissues used as controls, no expression of mesenchymal markers was observed, except for one tissue that expressed fibronectin. Conversely, epithelial tumour cells expressed vimentin and fibronectin in 23/29 and 19/28 cTCC tissues, respectively. Regarding clinical parameters, vimentin score in Miniature Dachshunds was significantly higher than those in other dog breeds (P < 0.001). Multivariate survival analyses revealed that age>12 years was related to shorter progression-free survival (P = 0.02). Higher vimentin score, lower fibronectin score, and advanced clinical T stage were significantly correlated with shorter median survival time (P < 0.05). The results of this study indicate that vimentin expression was associated with cTCC progression. Further studies are needed to examine the incidence and relevance of EMT in cTCC.
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Affiliation(s)
- M Shinada
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - K Saeki
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
| | - R Yoshitake
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - S Eto
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - M Tsuboi
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-Ku, Tokyo 113-8657, Japan
| | - J K Chambers
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-Ku, Tokyo 113-8657, Japan
| | - K Uchida
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-Ku, Tokyo 113-8657, Japan
| | - D Kato
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - S Yoshimoto
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - S Kamoto
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - N Ikeda
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - R Kinoshita
- Veterinary Medical Center, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-Ku, Tokyo 113-8657, Japan
| | - N Fujita
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - R Nishimura
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - T Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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20
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Nishikura T, Wakabayashi K, Aizawa N, Suzuki T, Shibata K, Furuya T, Kosaki R, Fukuoka H, Ikeda N, Kikuchi M, Miyoshi F, Tanno K. Safety and efficacy of a hyperaemic agent, intracoronary nicorandil 4mg, for invasive physiological assessments during fractional flow reserve measurement. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Fractional flow reserve (FFR) is one of most reliable index for the determining the functional severity coronary artery stenosis. Adenosine is the most commonly used agent for maximal hyperaemia. However, adenosine can cause chest discomfort, bronchial hyper-reactivity, and atrioventricular block. The aim of this study is to evaluate the safety and efficacy of intracoronary nicorandil as an alternative hyperaemic agent for FFR.
Methods and results
We enrolled consecutive 82 patients (87 lesions) who underwent FFR measurement in our center from Nov. 2018. We compared three groups; intravenous infusion of adenosine (150 μg/kg/min); and adenosine added intracoronary nicorandil 2mg; and intracoronary nicorandil 4mg. Mean FFR value was 0.83±0.09, 0.82±0.09, 0.82±0.08, There was a strong correlation among three groups (R2>0.9). Mean cyclic change in FFR was 0.026±0.023, 0.019±0.010, 0.016±0.014, respectively, cyclic change was smallest in intracoronary nicorandil 4mg group (vs ATP; p<0.001, vs ATP + nicorandil 2mg; p<0.001). By Wilcoxon test, mean FFR value of nicorandil 4mg was significant lower than ATP (p=0.0021), and equal to ATP + nicorandil 2mg (p=0.98).
Conclusions
Intracoronary nicorandil 4mg is a simple, safe, and effective way to induce steady-state hyperaemia for FFR.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Nishikura
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | - N Aizawa
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - T Suzuki
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - K Shibata
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - T Furuya
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - R Kosaki
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - H Fukuoka
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - N Ikeda
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - M Kikuchi
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - F Miyoshi
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - K Tanno
- Showa University Koto Toyosu Hospital, Tokyo, Japan
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21
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Takekuma Y, Ikeda N, Kawakami K, Kamiya N, Nango M, Nagata M. Photocurrent generation by a photosystem I-NiO photocathode for a p-type biophotovoltaic tandem cell. RSC Adv 2020; 10:15734-15739. [PMID: 35493643 PMCID: PMC9052782 DOI: 10.1039/d0ra01793k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 04/15/2020] [Indexed: 11/21/2022] Open
Abstract
Photosynthesis is a process used by algae and plants to convert light energy into chemical energy. Due to their uniquely natural and environmentally friendly nature, photosynthetic proteins have attracted attention for use in a variety of artificial applications. Among the various types, biophotovoltaics based on dye-sensitized solar cells have been demonstrated in many studies. Although most related works have used n-type semiconductors, a p-type semiconductor is also a significant potential component for tandem cells. In this work, we used mesoporous NiO as a p-type semiconductor substrate for Photosystem I (PSI) and demonstrated a p-type PSI-biophotovoltaic and tandem cell based on dye-sensitized solar cells. Under visible light illumination, the PSI-adsorbed NiO electrode generated a cathodic photocurrent. The p-type biophotovoltaic cell using the PSI-adsorbed NiO electrode generated electricity, and the IPCE spectrum was consistent with the absorption spectrum of PSI. These results indicate that the PSI-adsorbed NiO electrode acts as a photocathode. Moreover, a tandem cell consisting of the PSI-NiO photocathode and a PSI-TiO2 photoanode showed a high open-circuit voltage of over 0.7 V under illumination to the TiO2 side. Thus, the tandem strategy can be utilized for biophotovoltaics, and the use of other biomaterials that match the solar spectrum will lead to further progress in photovoltaic performance.
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Affiliation(s)
- Yuya Takekuma
- Department of Industrial Chemistry, Graduate School of Engineering, Tokyo University of Science 12-1 Ichigaya-funagawara, Shinjuku-ku Tokyo 162-0826 Japan
| | - Nobuhiro Ikeda
- Department of Industrial Chemistry, Graduate School of Engineering, Tokyo University of Science 12-1 Ichigaya-funagawara, Shinjuku-ku Tokyo 162-0826 Japan
| | - Keisuke Kawakami
- Research Center for Artificial Photosynthesis (ReCAP), Osaka City University 3-3-138 Sugimoto, Sumiyoshi-ku Osaka 558-8585 Japan
| | - Nobuo Kamiya
- The OCU Advanced Research Institute for Natural Science & Technology (OCARINA), Osaka City University 3-3-138 Sugimoto, Sumiyoshi-ku Osaka 558-8585 Japan
| | - Mamoru Nango
- The OCU Advanced Research Institute for Natural Science & Technology (OCARINA), Osaka City University 3-3-138 Sugimoto, Sumiyoshi-ku Osaka 558-8585 Japan
| | - Morio Nagata
- Department of Industrial Chemistry, Graduate School of Engineering, Tokyo University of Science 12-1 Ichigaya-funagawara, Shinjuku-ku Tokyo 162-0826 Japan
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22
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Naito T, Tanei M, Ikeda N, Ishii T, Suzuki T, Morita H, Yamasaki S, Tamura J, Akazawa K, Yamamoto K, Otani H, Suzuki S, Kikuchi M, Ono S, Kobayashi H, Akita H, Tazuma S, Hayashi J. Key diagnostic characteristics of fever of unknown origin in Japanese patients: a prospective multicentre study. BMJ Open 2019; 9:e032059. [PMID: 31748308 PMCID: PMC6886908 DOI: 10.1136/bmjopen-2019-032059] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE To identify the key diagnostic features and causes of fever of unknown origin (FUO) in Japanese patients. DESIGN Multicentre prospective study. SETTING Sixteen hospitals affiliated with the Japanese Society of Hospital General Medicine, covering the East and West regions of Japan. PARTICIPANTS Patient aged ≥20 years diagnosed with classic FUO (axillary temperature≥38.0°C at least twice within a 3-week period, cause unknown after three outpatient visits or 3 days of hospitalisation). A total of 141 cases met the criteria and were recruited from January 2016 to December 2017. INTERVENTION Japanese standard diagnostic examinations. OUTCOME MEASURES Data collected include usual biochemical blood tests, inflammatory markers (erythrocyte sedimentation rate (ESR), C reactive (CRP) protein level, procalcitonin level), imaging results, autopsy findings (if performed) and final diagnosis. RESULTS The most frequent age group was 65-79 years old (mean: 58.6±9.1 years). The most frequent cause of FUO was non-infectious inflammatory disease. After a 6-month follow-up period, 21.3% of cases remained undiagnosed. The types of diseases causing FUO were significantly correlated with age and prognosis. Between patients with and without a final diagnosis, there was no difference in CRP level between patients with and without a final diagnosis (p=0.121). A significant difference in diagnosis of a causative disease was found between patients who did or did not receive an ESR test (p=0.041). Of the 35 patients with an abnormal ESR value, 28 (80%) had causative disease identified. CONCLUSIONS Age may be a key factor in the differential diagnosis of FUO; the ESR test may be of value in the FUO evaluation process. These results may provide clinicians with insight into the management of FUO to allow adequate treatment according to the cause of the disease.
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Affiliation(s)
- Toshio Naito
- Department of General Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Mika Tanei
- Department of General Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Nobuhiro Ikeda
- Department of General Medicine, Eiju General Hospital, Tokyo, Japan
| | - Toshihiro Ishii
- Department of General Medicine, Oita University Faculty of Medicine, Oita, Japan
| | - Tomio Suzuki
- Department of General Medicine, Osaka Medical College Hospital, Osaka, Japan
| | - Hiroyuki Morita
- General Internal Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Sho Yamasaki
- General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Jun'ichi Tamura
- General Medicine, Gunma University Graduate School of Medicine School of Medicine, Maebashi, Japan
| | - Kenichiro Akazawa
- Internal Medicine, Shonan Fujisawa Tokushukai Hospital, Fujisawa, Japan
| | | | - Hiroshi Otani
- General Medicine, Tachikawa Sogo Hospital, Tachikawa, Tokyo, Japan
| | - Satoshi Suzuki
- Division of General Medicine, Tone Chuo Hospital, Gunma, Japan
| | - Motoo Kikuchi
- Department of General Medicine, Nagoya City West Medical Center, Nagoya, Japan
| | - Shiro Ono
- General Medicine, Nara Medical University, Nara, Japan
| | | | - Hozuka Akita
- Department of Internal Medicine, Hyogo Prefectural Tamba Medical Center, Tamba, Japan
| | - Susumu Tazuma
- Department of General Internal Medicine, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - Jun Hayashi
- Kyushu General Internal Medicine Center, Haradoi Hospital, Fukuoka, Japan
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23
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Ikeda N. MS16.05 Optimal Treatment Selection for Screen-Detected Lung Cancers. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.375] [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: 12/01/2022]
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24
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Kudo Y, Haymaker C, Zhang J, Reuben A, Duose D, Fujimoto J, Roy-Chowdhuri S, Solis L, Dejima H, Cuentas EP, Mino B, Ikeda N, Luthra R, Gibbons D, Zhang J, Lang F, Lee J, Huse J, Kadara H, Wistuba I. P1.04-07 Immune Suppressive Microenvironment and Highly Clonal Concordance of TCR Repertoire in Brain Metastases from Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.910] [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: 11/29/2022]
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25
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Tanaka Y, Okano T, Kudo Y, Takeuchi S, Makino Y, Shimada Y, Maehara S, Hagiwara M, Kakihana M, Kajiwara N, Ohira T, Ikeda N. EP1.04-26 Efficacy and Safety of Anti-PD-1 Inhibitors in Elderly Patients with Advanced Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Mimae T, Miyata Y, Tsutani Y, Imai K, Ito H, Nakayama H, Ikeda N, Okada M. Wedge resection with omission of lymph node dissection as an optional treatment strategy in octogenarians or older with early stage non-small cell lung cancers. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz258.003] [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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28
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Tsuboi M, Kenmotsu H, Yamanaka T, Yoshiya K, Takahashi T, Ueno T, Goto K, Daga H, Ikeda N, Sugio K, Seto T, Toyooka S, Date H, Mitsudomi T, Okamoto I, Yokoi K, Saka H, Okamoto H, Takiguchi Y, Yamamoto N. JIPANG study: Randomized phase III study of pemetrexed/cisplatin (PEM/Cis) versus vinorelbine /cisplatin (VNR/Cis) for completely resected p-stage II-IIIA non-squamous non-small cell lung cancer (Ns-NSCLC): Outcomes based on EGFR mutation status. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz258.001] [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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29
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Osawa J, Shimada Y, Maehara S, Masaru H, Kakihana M, Kajiwara N, Ohira T, Ikeda N. P2.17-39 Relationship Between EGFR Mutation and Pathological Differentiation in Patients with Clinical Stage IA Lung Adenocarcinoma. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1950] [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: 10/25/2022]
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30
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Tachibana T, Omori T, Uchida O, Takahashi H, Ikeda N. EP1.09-16 A Case of Pulmonary Primary Enteric Adenocarcinoma Diagnosed Preoperatively. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2212] [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: 11/25/2022]
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31
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Kunitoh H, Sakurai H, Tsuboi M, Wakabayashi M, Okada M, Suzuki K, Ikeda N, Takahama M, Takenoyama M, Ohde Y, Yoshiya K, Matsumoto I, Yamashita M, Marutsuka T, Date H, Hasumi T, Yamashita Y, Okumura N, Watanabe S, Asamura H. MA06.06 A Phase III Study of Adjuvant Chemotherapy in Patients with Completely Resected, Node-Negative Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.542] [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: 11/30/2022]
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32
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Makino Y, Shimada Y, Maehara S, Masaru H, Kakihana M, Kajiwara N, Ohira T, Ikeda N. MA06.05 Predictive Performance of Quantitative Metabolic Metrics of FDG-PET/CT on Survival and the Effect of Adjuvant Chemotherapy in Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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Horiuchi K, Asakura T, Ikeda N. Rhabdomyolysis diagnosed in an older woman with dementia on examination after a wandering episode. Geriatr Gerontol Int 2019; 19:956-957. [DOI: 10.1111/ggi.13670] [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] [Revised: 03/14/2019] [Accepted: 03/25/2019] [Indexed: 11/30/2022]
Affiliation(s)
- Kohei Horiuchi
- Department of Internal MedicineEiju General Hospital Tokyo Japan
| | - Takanori Asakura
- Division of Pulmonary Medicine, Department of MedicineKeio University School of Medicine Tokyo Japan
- Department of Pulmonary MedicineEiju General Hospital Tokyo Japan
| | - Nobuhiro Ikeda
- Department of Internal MedicineEiju General Hospital Tokyo Japan
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Kudo Y, Haymaker C, Zhang J, Reuben A, Duose DY, Fujimoto J, Roy-Chowdhuri S, Solis Soto LM, Dejima H, Parra ER, Mino B, Abraham R, Ikeda N, Vaporcyan A, Gibbons D, Zhang J, Lang FF, Luthra R, Lee JJ, Moran C, Huse JT, Kadara H, Wistuba II. Suppressed immune microenvironment and repertoire in brain metastases from patients with resected non-small-cell lung cancer. Ann Oncol 2019; 30:1521-1530. [PMID: 31282941 PMCID: PMC6771224 DOI: 10.1093/annonc/mdz207] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The tumor immune microenvironment (TIME) of lung cancer brain metastasis is largely unexplored. We carried out immune profiling and sequencing analysis of paired resected primary tumors and brain metastases of non-small-cell lung carcinoma (NSCLC). PATIENTS AND METHODS TIME profiling of archival formalin-fixed and paraffin-embedded specimens of paired primary tumors and brain metastases from 39 patients with surgically resected NSCLCs was carried out using a 770 immune gene expression panel and by T-cell receptor beta repertoire (TCRβ) sequencing. Immunohistochemistry was carried out for validation. Targeted sequencing was carried out to catalog hot spot mutations in cancer genes. RESULTS Somatic hot spot mutations were mostly shared between both tumor sites (28/39 patients; 71%). We identified 161 differentially expressed genes, indicating inhibition of dendritic cell maturation, Th1, and leukocyte extravasation signaling pathways, in brain metastases compared with primary tumors (P < 0.01). The proinflammatory cell adhesion molecule vascular cell adhesion protein 1 was significantly suppressed in brain metastases compared with primary tumors. Brain metastases exhibited lower T cell and elevated macrophage infiltration compared with primary tumors (P < 0.001). T-cell clones were expanded in 64% of brain metastases compared with their corresponding primary tumors. Furthermore, while TCR repertoires were largely shared between paired brain metastases and primary tumors, T-cell densities were sparse in the metastases. CONCLUSION We present findings that suggest that the TIME in brain metastases from NSCLC is immunosuppressed and comprises immune phenotypes (e.g. immunosuppressive tumor-associated macrophages) that may help guide immunotherapeutic strategies for NSCLC brain metastases.
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MESH Headings
- Adult
- Aged
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/immunology
- Brain Neoplasms/immunology
- Brain Neoplasms/pathology
- Brain Neoplasms/secondary
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/immunology
- Carcinoma, Non-Small-Cell Lung/pathology
- Carcinoma, Non-Small-Cell Lung/surgery
- Dendritic Cells/immunology
- Female
- Gene Expression Regulation, Neoplastic/immunology
- Humans
- Immunohistochemistry
- Male
- Middle Aged
- Mutation/genetics
- Neoplasm Proteins/genetics
- Neoplasm Proteins/immunology
- Receptors, Antigen, T-Cell, alpha-beta/genetics
- Receptors, Antigen, T-Cell, alpha-beta/immunology
- Tumor Microenvironment/genetics
- Tumor Microenvironment/immunology
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Affiliation(s)
- Y Kudo
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Surgery, Tokyo Medical University, Tokyo, Japan
| | - C Haymaker
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - J Zhang
- Departments of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - A Reuben
- Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - D Y Duose
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - J Fujimoto
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - S Roy-Chowdhuri
- Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - L M Solis Soto
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - H Dejima
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - E R Parra
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - B Mino
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - R Abraham
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - N Ikeda
- Department of Surgery, Tokyo Medical University, Tokyo, Japan
| | - A Vaporcyan
- Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - D Gibbons
- Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - J Zhang
- Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - F F Lang
- Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - R Luthra
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA; Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - J J Lee
- Departments of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - C Moran
- Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - J T Huse
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA; Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - H Kadara
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - I I Wistuba
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA; Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA.
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WAKABAYASHI K, Yamamoto S, Ikeda N, Kusunoki Y, Takeji M. MON-013 A CASE OF MEMBRANOUS NEPHROPATHY THAT DEVELOPPED AFTER USE OF NIVOLUMAB. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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36
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Ikeda N, Tsukada N. SINGLE, MIDDLE-AGED UNEMPLOYED SONS LIVING WITH THEIR PARENTS. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1535] [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: 11/13/2022] Open
Affiliation(s)
- N Ikeda
- Osaka Advocacy Office, Osaka, Osaka, Japan
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Ohira T, Hamanaka W, Shimada Y, Maehara S, Maeda J, Hagiwara M, Kakihana M, Okano T, Kajiwara N, Ikeda N. P3.01-78 The Cytology Samples and Plasma Specimens were Feasible for the EGFR Molecular Testing. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1638] [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: 11/16/2022]
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38
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Kato Y, Furukawa K, Amemiya R, Furumoto H, Shigefuku S, Ikeda N. P3.16-27 Clinical Outcome of Preoperative Intervention Bronchoscopy Followed by Surgery. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1934] [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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39
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Shimada Y, Okano T, Ohira T, Ikeda N. UCHL1 has prognostic relevance and is a therapeutic target in high-grade neuroendocrine lung cancers. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy298.013] [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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40
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Kakihana M, Hagiwara M, Maeda J, Shimada Y, Maehara S, Kajiwara N, Ohira T, Ikeda N. P3.09-23 Accuracy and Reproducibility of Touch Imprint Cytology in Resected Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Tanaka T, Shimada Y, Makino Y, Maeda J, Hagiwara M, Okano T, Kakihana M, Kajiwara N, Ohira T, Matsubayashi J, Ikeda N. P1.16-17 The Role of Quantitative Metabolic Metrics on FDG-PET/CT in Predicting Pathological Invasive Factors in cN0 Lung Adenocarcinoma. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.986] [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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42
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Endoh M, Shiono S, Matsutani N, Okumura S, Ikeda N, Yoshino I, Nakajima J, Kawamura M. P3.08-08 Outcomes of Pulmonary Metastasectomy in Breast Cancer: Prognosis Based on the Metastatic Lung Tumor Study Group of Japan. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1758] [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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43
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Sato C, Wakabayashi K, Honda Y, Shibata K, Furuya T, Nishikura T, Ikeda N, Kikuchi M, Miyoshi F, Toshida T, Tanno K. P241Low exercise tolerance predicts critical myocardial ischemia in asymptomatic patients with diabetic mellitus. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p241] [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)
- C Sato
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - K Wakabayashi
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - Y Honda
- Fuji hospital, Division of Cardiology, Shizuoka, Japan
| | - K Shibata
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - T Furuya
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - T Nishikura
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - N Ikeda
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - M Kikuchi
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - F Miyoshi
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - T Toshida
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - K Tanno
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
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Ikeda N, Kubota S, Toi S, Okazaki T, Iijima R, Hara H, Hiroi Y, Nakamura M. P3562The relationship between pulmonary artery pressures and bleeding volume in balloon pulmonary angioplasty for chronic thromboembolic pulmonary hypertension. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3562] [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: 11/13/2022] Open
Affiliation(s)
- N Ikeda
- Toho University, Ohashi Medical Center, Department of Cardiovascular Medicine, Tokyo, Japan
| | - S Kubota
- National Center for Global Health and Medicine, Cardiology Division, Tokyo, Japan
| | - S Toi
- Toho University, Ohashi Medical Center, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Okazaki
- National Center for Global Health and Medicine, Cardiology Division, Tokyo, Japan
| | - R Iijima
- Toho University, Ohashi Medical Center, Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Hara
- Toho University, Ohashi Medical Center, Department of Cardiovascular Medicine, Tokyo, Japan
| | - Y Hiroi
- National Center for Global Health and Medicine, Cardiology Division, Tokyo, Japan
| | - M Nakamura
- Toho University, Ohashi Medical Center, Department of Cardiovascular Medicine, Tokyo, Japan
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45
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Kobe, Ikeda N, Kagechika K, Maeno T. The effect of nurses’ training on sensitivity of fall risk prediction (Kyt: Kiken Yochi training). Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.1233] [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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46
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Nichols K, Trevino E, Ikeda N, Philo D, Garcia A, Bowman D. Interdependency amongst earthquake magnitudes in Southern California. J Appl Stat 2018. [DOI: 10.1080/02664763.2017.1313965] [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: 10/19/2022]
Affiliation(s)
- K. Nichols
- Department of Mathematics, California State University, Fullerton, CA, USA
| | - E. Trevino
- Department of Mathematics, California State University, Fullerton, CA, USA
| | - N. Ikeda
- Division of Mathematics and Computer Science, Fullerton College, CA, USA
| | - D. Philo
- Department of Geology, California State University, Fullerton, CA, USA
| | - A. Garcia
- Department of Physics, California State University, Fullerton, CA, USA
| | - D. Bowman
- Department of Geology, California State University, Fullerton, CA, USA
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47
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Takayanagi K, Takeuchi A, Nara Y, Miyahara H, Ikeda N. Arrhythmia Curve Interpretation Using a Dynamic System Model of the Myocardial Pacemaker. Methods Inf Med 2018. [DOI: 10.1055/s-0038-1636850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Abstract:A problem of identifying the phase response curve of the myocardial pacemaker was investigated using a simple dynamic system model of cardiac arrhythmia. A hybrid optimization method of a genetic algorithm and a local optimization technique was employed to obtain a solution of the model fitting. The method was applied to two categories of arrhythmias, ventricular parasystole and high-degree AV block. The present study offered a new insight into the mechanism of cardiac arrhythmias.
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48
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Iizuka T, Takeuchi A, Shirataka M, Ikeda N, Mamorita N. Development of a System for Measurement and Analysis of Tremor Using a Three-axis Accelerometer. Methods Inf Med 2018; 48:589-94. [DOI: 10.3414/me9243] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [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: The aim of the study was to develop a low-cost and compact system for analysis of tremor using a three-axis accelerometer (the Wii Remote (Nintendo)). To analyze tremor, we hypothesized that the influence of gravitational acceleration should be separated from that of movement. This hypothesis was tested experimentally and we also attempted to record and analyze tremor using our system in a clinical ward.
Methods: A system for tremor measurement and analysis was developed using the three-axis accelerometer built into the Wii Remote. The frequency and amplitude of mechanical oscillation were calculated using methods for frequency analysis of the axis of largest variance and an estimation of tremor amplitude.
Results: The system consists of a program for measurement and analysis of Wii Remote acceleration (Tremor Analyzer), a Wii Remote, a Bluetooth USB adapter and a Web camera. The Tremor Analyzer has a GUI (graphical user interface) that is divided into five segments. The sampling period of the analyzer is 30 msec. To confirm the hypothesis, mechanical oscillations were fed to the Wii Remote. The peak frequency of the power spectrum and the frequency of the oscillation generator were in good agreement, except at 1 Hz (0.01 G) and 2 Hz (0.02 G). With a change in the sum of squares of the three axes from 1.0 to 1.8 (G), the estimated and generated amplitude (0.3 cm) were in close agreement.
Conclusions: This system using a Wii Remote is capable of analyzing frequency and estimated amplitude of tremor between 3 Hz and 15 Hz.
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Takanashi M, Makino Y, Ohira T, Ikeda N, Kuroda M. P3.07-003 Analysis of Dendritic Cell Derived Exosomes That Suppressed Tumor Growth. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1694] [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: 10/18/2022]
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50
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Ohtani K, Maehara S, Imai K, Furumoto H, Hagiwara M, Okano T, Kakihana M, Kajiwara N, Ohira T, Ikeda N. P1.16-010 Development of a Novel Surgical Marking Method Using Low Power Laser Light. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1064] [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: 10/18/2022]
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