1
|
Ishihara H, Watanabe T, Kumei S, Kume K, Yoshikawa I, Harada M. A case of refractory immune checkpoint inhibitor-induced colitis improved by the treatment with vedolizumab and granulocyte-monocyte apheresis combination therapy. Clin J Gastroenterol 2024; 17:46-51. [PMID: 38041760 DOI: 10.1007/s12328-023-01887-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 10/23/2023] [Indexed: 12/03/2023]
Abstract
A 68-year-old man developed immune-related adverse event (irAE) colitis after the initiation of nivolumab and ipilimumab combination therapy for malignant melanoma. We diagnosed the patient with grade 3 irAE colitis and started prednisolone (1 mg/kg/day). Although the symptom improved once, it worsened along with the tapering of prednisolone. Therefore, we started infliximab (IFX). However, symptoms did not improve after two doses of IFX. We discontinued IFX and initiated vedolizumab (VED). Because VED alone did not improve the symptom, we started granulocyte-monocyte apheresis (GMA). Twelve weeks after the onset, the colitis was in remission. Therefore, in addition to vedolizumab, GMA may be considered in cases refractory to treatment.
Collapse
Affiliation(s)
- Hikaru Ishihara
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.
| | - Tatsuyuki Watanabe
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Shinsuke Kumei
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Keiichiro Kume
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Ichiro Yoshikawa
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Masaru Harada
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| |
Collapse
|
2
|
Jones GH, Snodgrass C, Tubiana C, Küppers M, Kawakita H, Lara LM, Agarwal J, André N, Attree N, Auster U, Bagnulo S, Bannister M, Beth A, Bowles N, Coates A, Colangeli L, Corral van Damme C, Da Deppo V, De Keyser J, Della Corte V, Edberg N, El-Maarry MR, Faggi S, Fulle M, Funase R, Galand M, Goetz C, Groussin O, Guilbert-Lepoutre A, Henri P, Kasahara S, Kereszturi A, Kidger M, Knight M, Kokotanekova R, Kolmasova I, Kossacki K, Kührt E, Kwon Y, La Forgia F, Levasseur-Regourd AC, Lippi M, Longobardo A, Marschall R, Morawski M, Muñoz O, Näsilä A, Nilsson H, Opitom C, Pajusalu M, Pommerol A, Prech L, Rando N, Ratti F, Rothkaehl H, Rotundi A, Rubin M, Sakatani N, Sánchez JP, Simon Wedlund C, Stankov A, Thomas N, Toth I, Villanueva G, Vincent JB, Volwerk M, Wurz P, Wielders A, Yoshioka K, Aleksiejuk K, Alvarez F, Amoros C, Aslam S, Atamaniuk B, Baran J, Barciński T, Beck T, Behnke T, Berglund M, Bertini I, Bieda M, Binczyk P, Busch MD, Cacovean A, Capria MT, Carr C, Castro Marín JM, Ceriotti M, Chioetto P, Chuchra-Konrad A, Cocola L, Colin F, Crews C, Cripps V, Cupido E, Dassatti A, Davidsson BJR, De Roche T, Deca J, Del Togno S, Dhooghe F, Donaldson Hanna K, Eriksson A, Fedorov A, Fernández-Valenzuela E, Ferretti S, Floriot J, Frassetto F, Fredriksson J, Garnier P, Gaweł D, Génot V, Gerber T, Glassmeier KH, Granvik M, Grison B, Gunell H, Hachemi T, Hagen C, Hajra R, Harada Y, Hasiba J, Haslebacher N, Herranz De La Revilla ML, Hestroffer D, Hewagama T, Holt C, Hviid S, Iakubivskyi I, Inno L, Irwin P, Ivanovski S, Jansky J, Jernej I, Jeszenszky H, Jimenéz J, Jorda L, Kama M, Kameda S, Kelley MSP, Klepacki K, Kohout T, Kojima H, Kowalski T, Kuwabara M, Ladno M, Laky G, Lammer H, Lan R, Lavraud B, Lazzarin M, Le Duff O, Lee QM, Lesniak C, Lewis Z, Lin ZY, Lister T, Lowry S, Magnes W, Markkanen J, Martinez Navajas I, Martins Z, Matsuoka A, Matyjasiak B, Mazelle C, Mazzotta Epifani E, Meier M, Michaelis H, Micheli M, Migliorini A, Millet AL, Moreno F, Mottola S, Moutounaick B, Muinonen K, Müller DR, Murakami G, Murata N, Myszka K, Nakajima S, Nemeth Z, Nikolajev A, Nordera S, Ohlsson D, Olesk A, Ottacher H, Ozaki N, Oziol C, Patel M, Savio Paul A, Penttilä A, Pernechele C, Peterson J, Petraglio E, Piccirillo AM, Plaschke F, Polak S, Postberg F, Proosa H, Protopapa S, Puccio W, Ranvier S, Raymond S, Richter I, Rieder M, Rigamonti R, Ruiz Rodriguez I, Santolik O, Sasaki T, Schrödter R, Shirley K, Slavinskis A, Sodor B, Soucek J, Stephenson P, Stöckli L, Szewczyk P, Troznai G, Uhlir L, Usami N, Valavanoglou A, Vaverka J, Wang W, Wang XD, Wattieaux G, Wieser M, Wolf S, Yano H, Yoshikawa I, Zakharov V, Zawistowski T, Zuppella P, Rinaldi G, Ji H. The Comet Interceptor Mission. Space Sci Rev 2024; 220:9. [PMID: 38282745 PMCID: PMC10808369 DOI: 10.1007/s11214-023-01035-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 11/29/2023] [Indexed: 01/30/2024]
Abstract
Here we describe the novel, multi-point Comet Interceptor mission. It is dedicated to the exploration of a little-processed long-period comet, possibly entering the inner Solar System for the first time, or to encounter an interstellar object originating at another star. The objectives of the mission are to address the following questions: What are the surface composition, shape, morphology, and structure of the target object? What is the composition of the gas and dust in the coma, its connection to the nucleus, and the nature of its interaction with the solar wind? The mission was proposed to the European Space Agency in 2018, and formally adopted by the agency in June 2022, for launch in 2029 together with the Ariel mission. Comet Interceptor will take advantage of the opportunity presented by ESA's F-Class call for fast, flexible, low-cost missions to which it was proposed. The call required a launch to a halo orbit around the Sun-Earth L2 point. The mission can take advantage of this placement to wait for the discovery of a suitable comet reachable with its minimum Δ V capability of 600 ms - 1 . Comet Interceptor will be unique in encountering and studying, at a nominal closest approach distance of 1000 km, a comet that represents a near-pristine sample of material from the formation of the Solar System. It will also add a capability that no previous cometary mission has had, which is to deploy two sub-probes - B1, provided by the Japanese space agency, JAXA, and B2 - that will follow different trajectories through the coma. While the main probe passes at a nominal 1000 km distance, probes B1 and B2 will follow different chords through the coma at distances of 850 km and 400 km, respectively. The result will be unique, simultaneous, spatially resolved information of the 3-dimensional properties of the target comet and its interaction with the space environment. We present the mission's science background leading to these objectives, as well as an overview of the scientific instruments, mission design, and schedule.
Collapse
Affiliation(s)
- Geraint H. Jones
- Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, UK
- The Centre for Planetary Sciences at UCL/Birkbeck, London, UK
| | | | | | - Michael Küppers
- European Space Agency (ESA), European Space Astronomy Centre (ESAC), Madrid, Spain
| | - Hideyo Kawakita
- Koyama Astronomical Observatory, Kyoto Sangyo University, Kyoto, Japan
| | - Luisa M. Lara
- Instituto de Astrofisica de Andalucía – CSIC, Granada, Spain
| | - Jessica Agarwal
- Institut für Geophysik und extraterrestrische Physik, Technische Universität Braunschweig, Braunschweig, Germany
| | - Nicolas André
- IRAP, CNRS, University Toulouse 3, CNES, Toulouse, France
| | - Nicholas Attree
- Instituto de Astrofisica de Andalucía – CSIC, Granada, Spain
| | - Uli Auster
- Institut für Geophysik und extraterrestrische Physik, Technische Universität Braunschweig, Braunschweig, Germany
| | | | | | - Arnaud Beth
- Department of Physics, Imperial College London, London, UK
| | - Neil Bowles
- Department of Physics, University of Oxford, Oxford, UK
| | - Andrew Coates
- Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, UK
- The Centre for Planetary Sciences at UCL/Birkbeck, London, UK
| | | | | | - Vania Da Deppo
- CNR-Institute for Photonics and Nanotechnologies, Padova, Italy
| | - Johan De Keyser
- Royal Belgian Institute of Space Aeronomy, Brussels, Belgium
| | | | - Niklas Edberg
- Swedish Institute of Space Physics, Uppsala/Kiruna, Sweden
| | - Mohamed Ramy El-Maarry
- Space and Planetary Science Center and Department of Earth Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Sara Faggi
- NASA Goddard Space Flight Center, Greenbelt, USA
| | - Marco Fulle
- INAF – Osservatorio Astronomico di Trieste, Trieste, Italy
| | - Ryu Funase
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa, Japan
| | - Marina Galand
- Department of Physics, Imperial College London, London, UK
| | | | - Olivier Groussin
- Laboratoire d’Astrophysique de Marseille, Aix-Marseille Université, CNRS, Marseille, France
| | | | - Pierre Henri
- Laboratoire Lagrange, CNRS, OCA, Université Côte d’Azur, and LPC2E, CNRS, Université d’Orléans, CNES, Orléans, France
| | | | - Akos Kereszturi
- Konkoly Astronomical Institute, Research Centre for Astronomy and Earth Sciences, HUN-REN, Budapest, Hungary
| | - Mark Kidger
- European Space Agency (ESA), European Space Astronomy Centre (ESAC), Madrid, Spain
| | | | - Rosita Kokotanekova
- Institute of Astronomy and National Astronomical Observatory, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Ivana Kolmasova
- Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | | | - Ekkehard Kührt
- DLR, Institute of Optical Sensor Systems, Berlin, Germany
| | - Yuna Kwon
- Caltech/IPAC, 1200 E California Blvd, MC 100-22 Pasadena, CA 91125, USA
| | | | | | - Manuela Lippi
- Institut für Geophysik und extraterrestrische Physik, Technische Universität Braunschweig, Braunschweig, Germany
| | | | - Raphael Marschall
- CNRS, Laboratoire J.-L. Lagrange, Observatoire de la Côte d’Azur, Nice, France
| | - Marek Morawski
- Space Research Centre of the Polish Academy of Sciences, Warsaw, Poland
| | - Olga Muñoz
- Instituto de Astrofisica de Andalucía – CSIC, Granada, Spain
| | - Antti Näsilä
- VTT Technical Research Centre of Finland Ltd, Espoo, Finland
| | - Hans Nilsson
- Swedish Institute of Space Physics, Uppsala/Kiruna, Sweden
| | | | | | - Antoine Pommerol
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | | | - Nicola Rando
- European Space Agency, ESTEC, Noordwijk, The Netherlands
| | | | - Hanna Rothkaehl
- Space Research Centre of the Polish Academy of Sciences, Warsaw, Poland
| | - Alessandra Rotundi
- Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope”, Napoli, Italy
| | - Martin Rubin
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Naoya Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa, Japan
| | - Joan Pau Sánchez
- Institut Supérieur de l’Aéronautique et de l’Espace, Toulouse, France
| | | | | | - Nicolas Thomas
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Imre Toth
- Konkoly Astronomical Institute, Research Centre for Astronomy and Earth Sciences, HUN-REN, Budapest, Hungary
| | | | | | - Martin Volwerk
- Austrian Academy of Sciences, Space Research Institute, Graz, Austria
| | - Peter Wurz
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Arno Wielders
- European Space Agency, ESTEC, Noordwijk, The Netherlands
| | | | - Konrad Aleksiejuk
- Space Research Centre of the Polish Academy of Sciences, Warsaw, Poland
| | | | - Carine Amoros
- IRAP, CNRS, University Toulouse 3, CNES, Toulouse, France
| | - Shahid Aslam
- NASA Goddard Space Flight Center, Greenbelt, USA
| | - Barbara Atamaniuk
- Space Research Centre of the Polish Academy of Sciences, Warsaw, Poland
| | - Jędrzej Baran
- Space Research Centre of the Polish Academy of Sciences, Warsaw, Poland
| | - Tomasz Barciński
- Space Research Centre of the Polish Academy of Sciences, Warsaw, Poland
| | - Thomas Beck
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Thomas Behnke
- DLR Institute of Planetary Research, Berlin, Germany
| | | | - Ivano Bertini
- Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope”, Napoli, Italy
| | | | | | - Martin-Diego Busch
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | | | | | - Chris Carr
- Department of Physics, Imperial College London, London, UK
| | | | | | - Paolo Chioetto
- CNR-Institute for Photonics and Nanotechnologies, Padova, Italy
| | | | - Lorenzo Cocola
- CNR-Institute for Photonics and Nanotechnologies, Padova, Italy
| | - Fabrice Colin
- LPC2E, CNRS, Université d’Orléans, CNES, Orléans, France
| | | | | | | | - Alberto Dassatti
- REDS, School of Management and Engineering Vaud, HES-SO University of Applied Sciences and Arts Western Switzerland, Delémont, Switzerland
| | | | - Thierry De Roche
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Jan Deca
- Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, USA
| | | | | | | | | | - Andrey Fedorov
- IRAP, CNRS, University Toulouse 3, CNES, Toulouse, France
| | | | - Stefano Ferretti
- Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope”, Napoli, Italy
| | - Johan Floriot
- Laboratoire d’Astrophysique de Marseille, Aix-Marseille Université, CNRS, Marseille, France
| | - Fabio Frassetto
- CNR-Institute for Photonics and Nanotechnologies, Padova, Italy
| | | | | | | | - Vincent Génot
- IRAP, CNRS, University Toulouse 3, CNES, Toulouse, France
| | - Thomas Gerber
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Karl-Heinz Glassmeier
- Institut für Geophysik und extraterrestrische Physik, Technische Universität Braunschweig, Braunschweig, Germany
| | - Mikael Granvik
- Department of Physics, University of Helsinki, Helsinki, Finland
- Asteroid Engineering Lab, Luleå University of Technology, Kiruna, Sweden
| | - Benjamin Grison
- Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | | | | | - Christian Hagen
- Austrian Academy of Sciences, Space Research Institute, Graz, Austria
| | | | | | - Johann Hasiba
- Austrian Academy of Sciences, Space Research Institute, Graz, Austria
| | - Nico Haslebacher
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | | | - Daniel Hestroffer
- IMCCE, Paris Observatory, Université PSL, CNRS, Sorbonne Université, Univ. Lille, Paris, France
| | | | | | - Stubbe Hviid
- DLR Institute of Planetary Research, Berlin, Germany
| | | | - Laura Inno
- Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope”, Napoli, Italy
| | - Patrick Irwin
- Department of Physics, University of Oxford, Oxford, UK
| | | | - Jiri Jansky
- Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Irmgard Jernej
- Austrian Academy of Sciences, Space Research Institute, Graz, Austria
| | - Harald Jeszenszky
- Austrian Academy of Sciences, Space Research Institute, Graz, Austria
| | - Jaime Jimenéz
- Instituto de Astrofisica de Andalucía – CSIC, Granada, Spain
| | - Laurent Jorda
- Laboratoire d’Astrophysique de Marseille, Aix-Marseille Université, CNRS, Marseille, France
| | - Mihkel Kama
- Tartu Observatory, University of Tartu, Tartu, Estonia
- University College London, London, UK
| | | | | | | | - Tomáš Kohout
- Department of Geosciences and Geography, University of Helsinki, Helsinki, Finland
- Institute of Geology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Hirotsugu Kojima
- Research Institute for Sustainable Humanosphere, Kyoto University, Kyoto, Japan
| | - Tomasz Kowalski
- Space Research Centre of the Polish Academy of Sciences, Warsaw, Poland
| | | | | | - Gunter Laky
- Austrian Academy of Sciences, Space Research Institute, Graz, Austria
| | - Helmut Lammer
- Austrian Academy of Sciences, Space Research Institute, Graz, Austria
| | - Radek Lan
- Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Benoit Lavraud
- Laboratoire d’astrophysique de Bordeaux, Univ. Bordeaux, CNRS, Nouvelle-Aquitaine, France
| | - Monica Lazzarin
- Department of Physics and Astronomy, University of Padova, Padova, Italy
| | | | - Qiu-Mei Lee
- IRAP, CNRS, University Toulouse 3, CNES, Toulouse, France
| | | | - Zoe Lewis
- Department of Physics, Imperial College London, London, UK
| | - Zhong-Yi Lin
- Institute of Astronomy, National Central University, Taoyuan, Taiwan
| | | | | | - Werner Magnes
- Austrian Academy of Sciences, Space Research Institute, Graz, Austria
| | - Johannes Markkanen
- Institut für Geophysik und extraterrestrische Physik, Technische Universität Braunschweig, Braunschweig, Germany
| | | | - Zita Martins
- Centro de Química Estrutural, Institute of Molecular Sciences and Department of Chemical Engineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | | | | | | | | | - Mirko Meier
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | | | | | | | | | - Fernando Moreno
- Instituto de Astrofisica de Andalucía – CSIC, Granada, Spain
| | | | | | - Karri Muinonen
- Department of Physics, University of Helsinki, Helsinki, Finland
| | - Daniel R. Müller
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Go Murakami
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa, Japan
| | - Naofumi Murata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa, Japan
| | | | - Shintaro Nakajima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa, Japan
| | - Zoltan Nemeth
- Wigner Research Centre for Physics, Budapest, Hungary
| | | | - Simone Nordera
- CNR-Institute for Photonics and Nanotechnologies, Padova, Italy
| | - Dan Ohlsson
- Swedish Institute of Space Physics, Uppsala/Kiruna, Sweden
| | - Aire Olesk
- Tartu Observatory, University of Tartu, Tartu, Estonia
| | - Harald Ottacher
- Austrian Academy of Sciences, Space Research Institute, Graz, Austria
| | - Naoya Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa, Japan
| | | | | | | | - Antti Penttilä
- Department of Physics, University of Helsinki, Helsinki, Finland
| | | | | | - Enrico Petraglio
- REDS, School of Management and Engineering Vaud, HES-SO University of Applied Sciences and Arts Western Switzerland, Delémont, Switzerland
| | - Alice Maria Piccirillo
- Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope”, Napoli, Italy
| | - Ferdinand Plaschke
- Institut für Geophysik und extraterrestrische Physik, Technische Universität Braunschweig, Braunschweig, Germany
| | - Szymon Polak
- Space Research Centre of the Polish Academy of Sciences, Warsaw, Poland
| | | | - Herman Proosa
- Tartu Observatory, University of Tartu, Tartu, Estonia
| | | | - Walter Puccio
- Swedish Institute of Space Physics, Uppsala/Kiruna, Sweden
| | - Sylvain Ranvier
- Royal Belgian Institute of Space Aeronomy, Brussels, Belgium
| | - Sean Raymond
- Laboratoire d’astrophysique de Bordeaux, Univ. Bordeaux, CNRS, Nouvelle-Aquitaine, France
| | - Ingo Richter
- Institut für Geophysik und extraterrestrische Physik, Technische Universität Braunschweig, Braunschweig, Germany
| | - Martin Rieder
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Roberto Rigamonti
- REDS, School of Management and Engineering Vaud, HES-SO University of Applied Sciences and Arts Western Switzerland, Delémont, Switzerland
| | | | - Ondrej Santolik
- Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Takahiro Sasaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa, Japan
| | | | | | | | | | - Jan Soucek
- Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | | | - Linus Stöckli
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Paweł Szewczyk
- Space Research Centre of the Polish Academy of Sciences, Warsaw, Poland
| | | | - Ludek Uhlir
- Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Naoto Usami
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa, Japan
| | - Aris Valavanoglou
- Austrian Academy of Sciences, Space Research Institute, Graz, Austria
| | | | - Wei Wang
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Xiao-Dong Wang
- Swedish Institute of Space Physics, Uppsala/Kiruna, Sweden
| | - Gaëtan Wattieaux
- Laboratoire Plasma et Conversion d’Energie (LAPLACE), CNRS, Université de Toulouse 3, Toulouse, France
| | - Martin Wieser
- Swedish Institute of Space Physics, Uppsala/Kiruna, Sweden
| | - Sebastian Wolf
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Hajime Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa, Japan
| | | | - Vladimir Zakharov
- LESIA, Observatoire de Paris, Université PSL, Sorbonne Université, Université Paris Cité, CNRS, Paris, France
| | | | - Paola Zuppella
- CNR-Institute for Photonics and Nanotechnologies, Padova, Italy
| | | | - Hantao Ji
- Department of Astrophysical Sciences, Princeton University, Princeton, USA
| |
Collapse
|
3
|
Masunaga K, Terada N, Yoshida N, Nakamura Y, Kuroda T, Yoshioka K, Suzuki Y, Nakagawa H, Kimura T, Tsuchiya F, Murakami G, Yamazaki A, Usui T, Yoshikawa I. Alternate oscillations of Martian hydrogen and oxygen upper atmospheres during a major dust storm. Nat Commun 2022; 13:6609. [PMID: 36329013 PMCID: PMC9633821 DOI: 10.1038/s41467-022-34224-6] [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: 01/30/2022] [Accepted: 10/14/2022] [Indexed: 11/06/2022] Open
Abstract
Dust storms on Mars play a role in transporting water from its lower to upper atmosphere, seasonally enhancing hydrogen escape. However, it remains unclear how water is diurnally transported during a dust storm and how its elements, hydrogen and oxygen, are subsequently influenced in the upper atmosphere. Here, we use multi-spacecraft and space telescope observations obtained during a major dust storm in Mars Year 33 to show that hydrogen abundance in the upper atmosphere gradually increases because of water supply above an altitude of 60 km, while oxygen abundance temporarily decreases via water ice absorption, catalytic loss, or downward transportation. Additionally, atmospheric waves modulate dust and water transportations, causing alternate oscillations of hydrogen and oxygen abundances in the upper atmosphere. If dust- and wave-driven couplings of the Martian lower and upper atmospheres are common in dust storms, with increasing escape of hydrogen, oxygen will less efficiently escape from the upper atmosphere, leading to a more oxidized atmosphere. These findings provide insights regarding Mars' water loss history and its redox state, which are crucial for understanding the Martian habitable environment.
Collapse
Affiliation(s)
- Kei Masunaga
- grid.450279.d0000 0000 9989 8906Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Japan
| | - Naoki Terada
- grid.69566.3a0000 0001 2248 6943Department of Geophysics, Graduate School of Science, Tohoku University, Sendai, Japan
| | - Nao Yoshida
- grid.69566.3a0000 0001 2248 6943Department of Geophysics, Graduate School of Science, Tohoku University, Sendai, Japan
| | - Yuki Nakamura
- grid.69566.3a0000 0001 2248 6943Department of Geophysics, Graduate School of Science, Tohoku University, Sendai, Japan ,grid.462844.80000 0001 2308 1657LATMOS, Sorbonne Université, Paris, France
| | - Takeshi Kuroda
- grid.69566.3a0000 0001 2248 6943Department of Geophysics, Graduate School of Science, Tohoku University, Sendai, Japan ,grid.69566.3a0000 0001 2248 6943Division for the Establishment of Frontier Sciences of Organization for Advanced Studies, Tohoku University, Sendai, Japan
| | - Kazuo Yoshioka
- grid.26999.3d0000 0001 2151 536XGraduate School of Frontier Sciences, University of Tokyo, Kashiwa, Japan ,grid.26999.3d0000 0001 2151 536XDepartment of Earth and Planetary Science, Graduate School of Science, University of Tokyo, Tokyo, Japan
| | - Yudai Suzuki
- grid.26999.3d0000 0001 2151 536XDepartment of Earth and Planetary Science, Graduate School of Science, University of Tokyo, Tokyo, Japan
| | - Hiromu Nakagawa
- grid.69566.3a0000 0001 2248 6943Department of Geophysics, Graduate School of Science, Tohoku University, Sendai, Japan
| | - Tomoki Kimura
- grid.143643.70000 0001 0660 6861Faculty of Science, Tokyo University of Science, Tokyo, Japan
| | - Fuminori Tsuchiya
- grid.69566.3a0000 0001 2248 6943Planetary Plasma and Atmospheric Research Center, Graduate School of Science, Tohoku University, Sendai, Japan
| | - Go Murakami
- grid.450279.d0000 0000 9989 8906Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Japan
| | - Atsushi Yamazaki
- grid.450279.d0000 0000 9989 8906Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Japan
| | - Tomohiro Usui
- grid.450279.d0000 0000 9989 8906Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Japan
| | - Ichiro Yoshikawa
- grid.26999.3d0000 0001 2151 536XGraduate School of Frontier Sciences, University of Tokyo, Kashiwa, Japan ,grid.26999.3d0000 0001 2151 536XDepartment of Earth and Planetary Science, Graduate School of Science, University of Tokyo, Tokyo, Japan
| |
Collapse
|
4
|
Miyagawa K, Kumamoto K, Shinohara N, Watanabe T, Kumei S, Yoneda A, Nebuya S, Koya Y, Oe S, Kume K, Yoshikawa I, Harada M. Autoimmune Pancreatitis with Gastric Cancer: Some IgG4-related Diseases May Be Paraneoplastic Syndrome. Intern Med 2022; 61:2155-2160. [PMID: 35850987 PMCID: PMC9381340 DOI: 10.2169/internalmedicine.8590-21] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
A 70-year-old man was referred to our department for the treatment of early gastric cancer. Contrast-enhanced computed tomography (CT) incidentally showed diffuse enlargement of the pancreas with a capsule-like rim, and blood tests showed elevated serum IgG4 levels, leading to a diagnosis of autoimmune pancreatitis (AIP). Endoscopic treatment for gastric cancer was performed, and pathological findings showed adenocarcinoma with abundant IgG4-positive plasma cell infiltration. Thereafter, the serum IgG4 levels normalized, and the findings of AIP disappeared on CT without steroid treatment. These findings suggest that the gastric cancer activated an IgG4-related immune response, resulting in the development of AIP.
Collapse
Affiliation(s)
- Koichiro Miyagawa
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Keiichiro Kumamoto
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Nobuhiko Shinohara
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Tatsuyuki Watanabe
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Shinsuke Kumei
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Akitoshi Yoneda
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Satoru Nebuya
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Yudai Koya
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Shinji Oe
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Keiichiro Kume
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Ichiro Yoshikawa
- Department of Endoscopy, University Hospital of Occupational and Environmental Health, Japan
| | - Masaru Harada
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| |
Collapse
|
5
|
Kumei S, Sakurai T, So S, Itaba S, Akiho H, Nakamura S, Kim H, Yamasaki M, Takatsu N, Maekawa R, Sakemi R, Watanabe T, Shibata M, Kume K, Yoshikawa I, Takaki Y, Harada M. Impact of the Concomitant Use of Immunomodulator and a Lower Week 8 Partial Mayo Score on the Persistence of Adalimumab in Refractory Ulcerative Colitis. Intern Med 2021; 60:3849-3856. [PMID: 34121007 PMCID: PMC8758447 DOI: 10.2169/internalmedicine.7279-21] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objective Real-world data of adalimumab (ADA) in the treatment of ulcerative colitis (UC) are scarce. We aimed to study the ADA response rates and predictors of response in UC treatment. Methods This observational, prospective and multi-center study assessed the clinical outcome of refractory UC patients treated with ADA who previously had an inadequate response to either conventional therapies or other anti-TNF antibodies or tacrolimus. The primary endpoint was the proportion of UC patients achieving a clinical response and remission at 8 and 52 weeks. We also evaluated the parameters which were associated with a clinical response at 8 and 52 weeks. Results A total of 35 patients were enrolled from 11 centers. The clinical responses at 8 and 52 weeks were 60.0% and 51.4%, respectively. The clinical remission rates at 8 and 52 weeks were 45.7% and 48.6%, respectively. Positive predictors for week 52 response were combination of ADA with immunomodulator (IM) (OR: 27.229; 95% CI; 1.897-390.76; p=0.015) and a week 8 lower partial Mayo score (OR: 0.406; 95% CI; 0.204-0.809; p=0.010). A receiver operation characteristic curve analysis revealed the optimal week 8 partial Mayo score to be 2.5, therefore a partial Mayo score of ≤2 was a positive predictor for the continuation of ADA. No malignancy or death occurred during this study. Conclusion ADA was effective for inducing and maintaining both a clinical response and remission in patients with refractory UC. It remains possible that the concomitant use of IM and a week 8 partial Mayo score of ≤2 may predict the long-term response of ADA.
Collapse
Affiliation(s)
- Shinsuke Kumei
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | | | - Suketo So
- Department of Gastroenterology, Tobata Kyoritsu Hospital, Japan
| | - Soichi Itaba
- Department of Gastroenterology, Kyushu Rosai Hospital, Japan
| | - Hirotada Akiho
- Department of Gastroenterology, Kitakyushu Municipal Medical Center, Japan
| | - Shigeo Nakamura
- Department of Gastroenterology, Steel Memorial Yawata Hospital, Japan
| | - Hyonji Kim
- Department of Gastroenterology, JCHO Fukuoka Yutaka Central Hospital, Japan
| | | | - Noritaka Takatsu
- Department of Gastroenterology, Tagawa Municipal Hospital, Japan
- Department of Gastroenterology, Fukuoka University Chikushi Hospital, Japan
| | - Ryuichiro Maekawa
- Department of Gastroenterology, Tagawa Social Insurance Hospital, Japan
| | - Ryosuke Sakemi
- Department of Gastroenterology, Tobata Kyoritsu Hospital, Japan
| | - Tatsuyuki Watanabe
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Michihiko Shibata
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Keiichiro Kume
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Ichiro Yoshikawa
- Department of Endoscopy, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Yasuhiro Takaki
- Department of Gastroenterology, Ashiya Central Hospital, Japan
| | - Masaru Harada
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| |
Collapse
|
6
|
Koya Y, Shibata M, Oe S, Honma Y, Nebuya S, Miyagawa K, Yoshikawa I, Harada M. Impact of sarcopenia on recurrent biliary obstruction after insertion of self-expandable metallic stent in patients with malignant biliary obstruction. J Hepatobiliary Pancreat Sci 2021; 28:572-580. [PMID: 33905608 DOI: 10.1002/jhbp.970] [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] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/23/2021] [Accepted: 04/12/2021] [Indexed: 11/09/2022]
Abstract
BACKGROUND/PURPOSE Recurrent biliary obstruction (RBO) after self-expandable metallic stent (SEMS) insertion is a big problem in patients with unresectable malignant biliary obstruction (MBO). Sarcopenia is associated with poor prognosis in patients with malignancies. The purpose of this study is to clarify the relationship between RBO and sarcopenia. METHODS Forty-six patients with normal psoas muscle mass index (PMI) and 55 with low PMI were enrolled, based on PMI cut-off values. We analyzed the cumulative incidences and predictors of RBO, considering death without RBO to be a competing risk. RESULTS In the Kaplan-Meier analysis, the 60-, 180-, and 360-day cumulative incidence rates of RBO were 0.0%, 12.2%, and 22.0% in the normal PMI group, as compared to 4.0%, 31.1%, and 55.0% in the low PMI group, respectively (log-rank P = .003). In competing risk analysis, the incidences were 2.9%, 2.9%, and 7.1% in the normal PMI group, as compared to 13.7%, 34.8%, and 51.7% in the low PMI group, respectively (P < .001). In multivariate Cox regression and Fine-Gray's analyses, hazard ratios of low PMI for RBO were 4.593 (95% confidence interval 1.673-12.61, P = .003) and 4.980 (2.045-12.13, P < .001), respectively. CONCLUSIONS Sarcopenia in MBO was an independent risk factor for RBO.
Collapse
Affiliation(s)
- Yudai Koya
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Michihiko Shibata
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Shinji Oe
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yuichi Honma
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Satoru Nebuya
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Koichiro Miyagawa
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Ichiro Yoshikawa
- Department of Endoscopy, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Masaru Harada
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| |
Collapse
|
7
|
Hideshima K, Watanabe T, Miyashima Y, Kumei S, Kume K, Yoshikawa I, Harada M. Meckel's Diverticulum Bleeding Missed by the First but Detected by the Second Capsule Endoscopy. J UOEH 2021; 43:75-80. [PMID: 33678788 DOI: 10.7888/juoeh.43.75] [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: 06/12/2023]
Abstract
A 13-year-old boy was admitted to our hospital because of bloody stools. Although a Meckel's diverticulum (MD) was suspected, capsule endoscopy (CE) revealed no remarkable findings. Seven months later, he was admitted again because of rebleeding. CE was performed again and revealed an elevated lesion and fresh blood in the ileum. A single balloon endoscopic examination revealed a diverticulum with an elevated lesion in it. Histologic findings showed ectopic gastric mucosa, thus we diagnosed this patient as having MD. Although CE is useful for the examination of obscure gastrointestinal bleeding, a single CE is not enough to diagnose MD bleeding. The timing in performing CE and the evaluation of other modalities would be valuable for patients suspected of having MD.
Collapse
Affiliation(s)
- Kousuke Hideshima
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Tatsuyuki Watanabe
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Yuichi Miyashima
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Shinsuke Kumei
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Keiichiro Kume
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Ichiro Yoshikawa
- Department of Endoscopy, University Hospital of Occupational and Environmental Health, Japan
| | - Masaru Harada
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| |
Collapse
|
8
|
Koya Y, Shibata M, Watanabe T, Kumei S, Miyagawa K, Oe S, Honma Y, Kume K, Yoshikawa I, Harada M. Influence of gastroesophageal flap valve on esophageal variceal bleeding in patients with liver cirrhosis. Dig Endosc 2021; 33:100-109. [PMID: 32274835 DOI: 10.1111/den.13685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 04/01/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Esophageal variceal bleeding can be fatal in patients with liver cirrhosis. The aim of this study was to investigate the relationship between gastroesophageal flap valve (GEFV) and esophageal variceal bleeding. METHODS Subjects were cirrhotic patients with endoscopically diagnosed esophageal varices treated at our hospital between 2005 and 2019, excluding those with F3 form and red color (RC) signs at first endoscopy. Sixty-five patients with normal GEFV (Hill grade I or II) and 42 with abnormal GEFV (Hill grade III or IV) were enrolled. Propensity score matching eliminated the baseline differences, resulting in a sample size of 30 patients per cohort. The primary endpoint was esophageal variceal bleeding, and the secondary endpoint was variceal bleeding or appearance of RC sign. We analyzed the cumulative incidences and predictors of each endpoint. RESULTS The 3-, 5-, and 10-year cumulative incidences of the primary endpoints were all 3.4% in the normal GEFV group, and 19.0%, 24.6% and 34.0% in the abnormal GEFV group, respectively (log-rank P = 0.011). Cumulative incidence of the secondary endpoint was 13.8%, 33.1% and 39.2% in the normal GEFV group, and 42.2%, 54.6% and 84.9% in the abnormal GEFV group, respectively (log-rank P = 0.001). In multivariate Cox regression analyses, hazard ratios of abnormal GEFV of the primary and secondary endpoints were 12.79 (95% confidence interval 1.331-122.8) and 3.600 (1.653-7.840), respectively. CONCLUSIONS Abnormal GEFV was an independent risk factor for esophageal variceal bleeding and appearance of RC sign.
Collapse
Affiliation(s)
- Yudai Koya
- Departments of, Department of, Third Department of Internal Medicine, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Michihiko Shibata
- Departments of, Department of, Third Department of Internal Medicine, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Tatsuyuki Watanabe
- Departments of, Department of, Third Department of Internal Medicine, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Shinsuke Kumei
- Departments of, Department of, Third Department of Internal Medicine, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Koichiro Miyagawa
- Departments of, Department of, Third Department of Internal Medicine, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Shinji Oe
- Departments of, Department of, Third Department of Internal Medicine, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Yuichi Honma
- Departments of, Department of, Third Department of Internal Medicine, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Keiichiro Kume
- Departments of, Department of, Third Department of Internal Medicine, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Ichiro Yoshikawa
- Department of, Endoscopy, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Masaru Harada
- Departments of, Department of, Third Department of Internal Medicine, University of Occupational and Environmental Health, Fukuoka, Japan
| |
Collapse
|
9
|
Takeda T, So S, Sakurai T, Nakamura S, Yoshikawa I, Yada S, Itaba S, Yamagata H, Akiho H, Takatsu N, Wada Y, Ohtsu K, Nagahama T, Yao K. Learning Effect of Diagnosing Depth of Invasion Using Non-Extension Sign in Early Gastric Cancer. Digestion 2020; 101:191-197. [PMID: 30889600 DOI: 10.1159/000498845] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 02/11/2019] [Indexed: 02/04/2023]
Abstract
BACKGROUND Determining the depth of invasion is important when considering therapeutic strategies for early gastric cancer (EGC). We determined the effects of learning the non-extension sign, that is, an index of T1b2 in EGC, on identifying its depth of invasion. METHODS Endoscopic images of 40 EGC cases (20 showing positive non-extension sign on endoscopy as T1b2 and 20 showing negative non-extension sign on endoscopy as T1a-T1b1) were randomly displayed on PowerPoint. Participants read endoscopy findings (pretest) and attended a 60-min lecture on how to read the non-extension sign. Then, they read the same images using the non-extension sign as the marker (posttest). The primary endpoint was a change in accuracy rate for determining the depth of invasion before and after attending the lecture, for nonexperts (< 80%). RESULTS Among 35 endoscopists, 12 were nonexperts; their test results were used for analyses. Accuracy rates for pretest and posttest among nonexperts were 75.2 and 82.5%, respectively, showing a significant increase in the accuracy rate after learning to read the non-extension sign (p = 0.003). CONCLUSION Nonexperts' diagnostic ability to determine the depth of invasion of EGC improved by learning to read the non-extension sign. Thus, the non-extension sign is considered a simple and useful diagnostic marker.
Collapse
Affiliation(s)
- Teruyuki Takeda
- Department of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan, .,Department of Gastroenterology, Tobata Kyoritsu Hospital, Fukuoka, Japan,
| | - Suketo So
- Department of Gastroenterology, Tobata Kyoritsu Hospital, Fukuoka, Japan
| | - Toshihiro Sakurai
- Department of Gastroenterology, Ashiya Central Hospital, Fukuoka, Japan
| | - Shigeo Nakamura
- Department of Gastroenterology, Steel Memorial Yawata Hospital, Fukuoka, Japan
| | - Ichiro Yoshikawa
- Department of Endoscopy, Hospital of the University of Occupational and Environmental Health, Fukuoka, Japan
| | - Shinichiro Yada
- Department of Gastroenterology, Onga Hospital, Fukuoka, Japan
| | - Soichi Itaba
- Department of Gastroenterology, Kyushu Rosai Hospital, Fukuoka, Japan
| | - Hajime Yamagata
- Department of Gastroenterology, Kokura Medical Center, Fukuoka, Japan
| | - Hirotada Akiho
- Department of Gastroenterology, Kitakyushu Municipal Medical Center, Fukuoka, Japan
| | - Noritaka Takatsu
- Department of Gastroenterology, Tagawa Municipal Hospital, Fukuoka, Japan
| | - Yoko Wada
- Department of Gastroenterology, Wada Hospital, Oita, Japan
| | - Kensei Ohtsu
- Department of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan.,Department of Gastroenterology, Tobata Kyoritsu Hospital, Fukuoka, Japan
| | - Takashi Nagahama
- Department of Endoscopy, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Kenshi Yao
- Department of Endoscopy, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| |
Collapse
|
10
|
Koya Y, Watanabe T, Kume K, Kumei S, Yoshikawa I, Tasaki T, Harada M. Usefulness of magnifying endoscopy and endoscopic ultrasonography for the gastric involvement of follicular lymphoma. Clin J Gastroenterol 2019; 13:55-59. [PMID: 31280472 DOI: 10.1007/s12328-019-01015-4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 06/28/2019] [Indexed: 11/24/2022]
Abstract
A 61-year-old man received an esophagogastroduodenoscopy for further investigation of mesenteric lymphadenopathy. Esophagogastroduodenoscopy revealed swollen gastric folds and cobble stone mucosa in the gastric body. Magnifying endoscopy with narrow-band imaging showed branched abnormal vessels and the absence or destruction of gastric pits. Endoscopic ultrasonography (EUS) depicted homogeneously hypoechoic thickening of the submucosal layer where the mucosal changes were observed. The patient was diagnosed with follicular lymphoma by biopsy of these lesions. We should recognize that these endoscopic features are consistent with follicular lymphoma involving the stomach and that concurrent EUS is useful for diagnosis and identification of adequate biopsy sites.
Collapse
Affiliation(s)
- Yudai Koya
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.
| | - Tatsuyuki Watanabe
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Keiichiro Kume
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Shinsuke Kumei
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Ichiro Yoshikawa
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Takashi Tasaki
- Department of Pathology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Masaru Harada
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| |
Collapse
|
11
|
Kumei S, Nakayama T, Watanabe T, Kumamoto K, Noguchi H, Shibata M, Kume K, Yoshikawa I, Harada M. Impact of examining additional deeper sections on the pathological diagnosis of endoscopically resected early gastric cancer. Dig Endosc 2019; 31:405-412. [PMID: 30681202 DOI: 10.1111/den.13355] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 01/21/2019] [Indexed: 02/08/2023]
Abstract
OBJECTIVES The pathological diagnosis of endoscopically resected early gastric cancer (EGC) is performed by evaluating a few representative sections from the specimen. We aimed to determine whether evaluating twice as many sections as usual by essentially cutting the original sections in half could improve the pathological diagnosis of EGC. METHODS We retrospectively investigated 85 EGC in 82 patients who had undergone endoscopic resection at our hospital from August 2008 to October 2012. EGC without indications of curative resection were excluded. We re-examined the original paraffin blocks after shaving away approximately half their original thickness, and evaluated whether the pathological diagnoses were affected. This technique essentially doubled the number of sections examined. RESULTS Ten pathological diagnoses of 68 EGC (14.7%) were changed from curative resection to non-curative resection when we evaluated twice as many sections as in the standard method. The median tumor size was 25 mm in the changed diagnosis group versus 14.5 mm in the no change group (P = 0.03). The univariate analysis also showed that tumor size was a significant predictor of changed diagnosis (P = 0.015). Both the changed diagnosis group and no change group had no recurrence during follow up. CONCLUSIONS Histological evaluation of twice as many sections as usual changed the initial pathological diagnosis of EGC, although the clinical implication of an additional deeper section was controversial because there was no recurrence. Our analysis also emphasized the importance of detailed histological evaluation to confirm a radical cure in endoscopic resection, especially in the case of larger EGC.
Collapse
Affiliation(s)
- Shinsuke Kumei
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan
| | - Toshiyuki Nakayama
- Department of Pathology, University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan
| | - Tatsuyuki Watanabe
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan
| | - Keiichiro Kumamoto
- Department of Pathology, University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan
| | - Hirotsugu Noguchi
- Department of Pathology, University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan
| | - Michihiko Shibata
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan
| | - Keiichiro Kume
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan
| | - Ichiro Yoshikawa
- Department of Endoscopy, University of Occupational and Environmental Health, School of Medicine, Fukuoka, Japan
| | - Masaru Harada
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan
| |
Collapse
|
12
|
Hirai F, Ishida T, Takeshima F, Yamamoto S, Yoshikawa I, Ashizuka S, Inatsu H, Mitsuyama K, Sou S, Iwakiri R, Nozaki R, Ohi H, Esaki M, Iida M, Matsui T. Effect of a concomitant elemental diet with maintenance anti-tumor necrosis factor-α antibody therapy in patients with Crohn's disease: A multicenter, prospective cohort study. J Gastroenterol Hepatol 2019; 34:132-139. [PMID: 29935082 PMCID: PMC7379489 DOI: 10.1111/jgh.14361] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 05/30/2018] [Accepted: 06/14/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND AIM The aim of this study was to clarify the additional effect of a concomitant elemental diet (ED) for patients with Crohn's disease on maintenance anti-tumor necrosis factor-α antibody (anti-TNF). METHODS Crohn's disease patients who received anti-TNF induction therapy were enrolled. Patients who achieved clinical response (defined as delta Crohn's disease activity index [CDAI] > 70 and CDAI < 200) at 10-14 weeks after the start of infliximab or adalimumab were included. Eligible patients took a tolerability test of ED (900 kcal/day) for 3 days. Then, patients who preferred concomitant ED and whose ED tolerance was confirmed were allocated to the ED group and given Elental 900 kcal/day or more. Other patients were allocated to the non-ED group. The primary endpoint was the cumulative remission rate at 2 years after baseline. Clinical relapse was defined as CDAI > 200 and/or need for additional treatment. Adherence to the ED was confirmed at each visit. RESULTS Seventy-two patients were included. Thirty-seven were allocated to the ED group, and 35 were allocated to the non-ED group. The cumulative remission rate at 2 years was not significantly different between the two groups (60.9% vs 56.7%, P = 0.98). Adherence to the ED in the ED group was relatively low, and only 11 patients were maintained on an ED of 900 kcal/day. CONCLUSIONS The addition of ED for Crohn's disease patients who responded to initial anti-TNF induction therapy was not found to improve outcomes. The efficacy of concomitant ED in other clinical settings, such as loss of response, needs to be clarified in the future (UMIN000009789).
Collapse
Affiliation(s)
- Fumihito Hirai
- Department of GastroenterologyFukuoka University Chikushi HospitalFukuokaJapan
| | - Tetsuya Ishida
- Department of GastroenterologyOita Red Cross HospitalOitaJapan
| | - Fuminao Takeshima
- Department of Gastroenterology and HepatologyNagasaki University Graduate School of Biomedical SciencesNagasakiJapan
| | - Shojiro Yamamoto
- Department of Gastroenterology and Hematology, Faculty of MedicineUniversity of MiyazakiMiyazakiJapan
| | - Ichiro Yoshikawa
- The Third Department of Internal Medicine, School of MedicineUniversity of Occupational and Environmental HealthFukuokaJapan
| | - Shinya Ashizuka
- Department of Internal Medicine, Circulatory and Body Fluid Regulation, Faculty of MedicineUniversity of MiyazakiMiyazakiJapan
| | - Haruhiko Inatsu
- Department of Internal Medicine, Circulatory and Body Fluid Regulation, Faculty of MedicineUniversity of MiyazakiMiyazakiJapan
| | - Keiichi Mitsuyama
- Division of Gastroenterology, Department of MedicineKurume University School of MedicineFukuokaJapan
| | - Suketo Sou
- Department of EndoscopyTobata Kyoritsu HospitalFukuokaJapan
| | - Ryuichi Iwakiri
- Department of Internal Medicine and Gastrointestinal EndoscopySaga University School of MedicineSagaJapan
| | | | - Hidehisa Ohi
- Department of GastroenterologyIzuro Imamura hospitalKagoshimaJapan
| | - Motohiro Esaki
- Department of Medicine and Clinical Science, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Mitsuo Iida
- Kyushu Central Hospital of the Mutual Aid Association of Public School TeachersFukuokaJapan
| | - Toshiyuki Matsui
- Department of GastroenterologyFukuoka University Chikushi HospitalFukuokaJapan
| | | |
Collapse
|
13
|
Morino K, Honma Y, Kumei S, Watanabe T, Kume K, Yoshikawa I, Harada M. Recombinant Thrombomodulin Used to Successfully Treat Cronkhite-Canada Syndrome with Disseminated Intravascular Coagulation due to Sepsis in a Compromised Patient. Intern Med 2018; 57:3079-3085. [PMID: 29877275 PMCID: PMC6262703 DOI: 10.2169/internalmedicine.0633-17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Cronkhite-Canada syndrome (CCS) is a rare non-inherited disease characterized by gastrointestinal polyposis, chronic diarrhea, ectodermal dysplasia, skin hyperpigmentation, hair loss and nail atrophy. Although the efficacy of corticosteroid and immunomodulatory agents has been demonstrated, no standard therapy regimen has been established, and the prognosis of CCS is still poor due to various complications. We here in report a CCS patient complicated with severe sepsis and disseminated intravascular coagulation who was successfully treated by combined modality therapies, including recombinant human soluble thrombomodulin.
Collapse
Affiliation(s)
- Kahori Morino
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Yuichi Honma
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Shinsuke Kumei
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Tatsuyuki Watanabe
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Keiichiro Kume
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Ichiro Yoshikawa
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Masaru Harada
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| |
Collapse
|
14
|
Kuwabara M, Taguchi M, Yoshioka K, Ishida T, de Oliveira N, Ito K, Kameda S, Suzuki F, Yoshikawa I. Evaluation of hydrogen absorption cells for observations of the planetary coronas. Rev Sci Instrum 2018; 89:023111. [PMID: 29495866 DOI: 10.1063/1.5007812] [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] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/30/2018] [Indexed: 06/08/2023]
Abstract
Newly designed Lyman-alpha absorption cells for imaging hydrogen planetary corona were characterized using an ultra high resolution Fourier transform spectrometer installed on the DESIRS (Dichroïsme Et Spectroscopie par Interaction avec le Rayonnement Synchrotron) beamline of Synchrotron SOLEIL in France. The early absorption cell installed in the Japanese Mars orbiter NOZOMI launched in 1998 had not been sufficiently optimized due to its short development time. The new absorption cells are equipped with the ability to change various parameters, such as filament shape, applied power, H2 gas pressure, and geometrical configuration. We found that the optical thickness of the new absorption cell was ∼4 times higher than the earlier one at the center wavelength of Lyman-alpha absorption, by optimizing the condition to promote thermal dissociation of H2 molecules into two H atoms on a hot tungsten filament. The Doppler temperature of planetary coronas could be determined with an accuracy better than 100 K with the performance of the newly developed absorption cell.
Collapse
Affiliation(s)
- M Kuwabara
- Department of Complexity Science and Engineering, University of Tokyo, Chiba, Japan
| | - M Taguchi
- Department of Physics, College of Science, Rikkyo University, Tokyo, Japan
| | - K Yoshioka
- Department of Complexity Science and Engineering, University of Tokyo, Chiba, Japan
| | - T Ishida
- Department of Physics, College of Science, Rikkyo University, Tokyo, Japan
| | - N de Oliveira
- Ligne DESIRS, Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - K Ito
- Ligne DESIRS, Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - S Kameda
- Department of Physics, College of Science, Rikkyo University, Tokyo, Japan
| | - F Suzuki
- Department of Complexity Science and Engineering, University of Tokyo, Chiba, Japan
| | - I Yoshikawa
- Department of Complexity Science and Engineering, University of Tokyo, Chiba, Japan
| |
Collapse
|
15
|
Ogino N, Aridome G, Oshima J, Shibata M, Watanabe T, Kume K, Yoshikawa I, Harada M. Serum Albumin Concentrations Predict hypovolaemia Caused by Polyethylene Glycol Plus Ascorbic Acid Prior to Colonoscopy in Elderly Patients. Drugs Aging 2016; 33:355-63. [PMID: 26895453 DOI: 10.1007/s40266-016-0355-4] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Previous studies have confirmed the safety of polyethylene glycol plus ascorbic acid for healthy middle-aged adults but not for the elderly. The osmotic pressure of polyethylene glycol plus ascorbic acid is approximately twice that of plasma osmolality and may cause dehydration. OBJECTIVE In this study, we determined whether dehydration was induced in elderly patients by polyethylene glycol plus ascorbic acid, and we analysed the data obtained in order to identify predictors of dehydration. METHODS This was a prospective, uncontrolled, before-and-after intervention study. All patients older than 65 years who underwent colonoscopies at the Moji Medical Center were administered polyethylene glycol plus ascorbic acid prior to colonoscopy. Clinical variables before and after bowel preparation were measured and analysed statistically. A multiple linear regression analysis was performed to identify predictors of dehydration due to this procedure. RESULTS Eighty-three patients were assessed for eligibility, and 74 clinical variables were ultimately analysed. A significant increase in the red blood cell count (4.10 versus 4.25 × 10(6)/mm(3)), haemoglobin level (12.4 versus 13.0 g/dL) and haematocrit (38.1% versus 39.4%) suggested the presence of hypovolaemia after the procedure (P < 0.001). The serum concentration of albumin before bowel preparation was identified as the only significant predictor of hypovolaemia (β = 0.47, P = 0.0001, adjusted R (2) = 0.22). CONCLUSION The serum concentration of albumin before bowel preparation predicted hypovolaemia caused by polyethylene glycol plus ascorbic acid in elderly patients. Therefore, care is needed in order to prevent hypovolaemia, especially in elderly patients with hypoalbuminaemia. TRIAL REGISTRATION No. 000015724 (University Hospital Medical Information Network Center).
Collapse
Affiliation(s)
- Noriyoshi Ogino
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Iseigaoka 1-1, Yahatanishi-ku, Kitakyushu, 807-8555, Japan. .,Department of Internal Medicine, Moji Medical Center, Kitakyushu, Japan.
| | - Gentaro Aridome
- Department of Internal Medicine, Moji Medical Center, Kitakyushu, Japan.,Department of Gastroenterology, Wakamatsu Hospital of University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Junji Oshima
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Iseigaoka 1-1, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.,Department of Internal Medicine, Moji Medical Center, Kitakyushu, Japan
| | - Michihiko Shibata
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Iseigaoka 1-1, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Tatsuyuki Watanabe
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Iseigaoka 1-1, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Keiichiro Kume
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Iseigaoka 1-1, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Ichiro Yoshikawa
- Department of Endoscopy, Hospital of the University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Masaru Harada
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Iseigaoka 1-1, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| |
Collapse
|
16
|
Inamasu Y, Asaumi H, Watanabe T, Kume K, Yoshikawa I, Harada M. [A Case of Acute Superior Mesenteric Artery Occlusion Rescued by Thrombus Aspiration without Bowel Resection]. J UOEH 2016; 38:53-59. [PMID: 26972945 DOI: 10.7888/juoeh.38.53] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Acute superior mesenteric artery (SMA) occlusion is rare and associated with high morbidity and mortality.One of the reasons is the difficulty to diagnose the disease soon after the abdominal pain initially occurs. A 79-year-old woman with atrial fibrillation was admitted because of progressive left abdominal pain and nausea. Two hours after the onset, computed tomography revealed an occlusion of the SMA. No signs of intestinal infarction were present. Abdominal angiography revealed complete obstruction from the distal portion of the SMA to the ileocolic artery, so we could have a diagnosis of SMA occlusion early. Continuous per-catheteric thrombus aspiration for the occlusion successfully removed the thrombus and led to complete revascularization laparotomy. We encountered a case of acute mesenteric ischemia due to SMA occlusion with atrial fibrillation. Early diagnosis is necessary to survive without bowel resection.
Collapse
Affiliation(s)
- Yoshinori Inamasu
- The Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | | | | | | | | | | |
Collapse
|
17
|
Kume K, Takahashi S, Kumamoto K, Watanabe T, Yoshikawa I, Harada M. Endoscopic resection of a giant pedunculated polyp using scissor-type forceps. Endoscopy 2015; 46 Suppl 1 UCTN:E290-1. [PMID: 25058816 DOI: 10.1055/s-0034-1365381] [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: 12/10/2022]
Affiliation(s)
- Keiichiro Kume
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Japan, School of Medicine, Kitakyusyu, Japan
| | - Shintaro Takahashi
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Japan, School of Medicine, Kitakyusyu, Japan
| | - Keiichiro Kumamoto
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Japan, School of Medicine, Kitakyusyu, Japan
| | - Tatsuyuki Watanabe
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Japan, School of Medicine, Kitakyusyu, Japan
| | - Ichiro Yoshikawa
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Japan, School of Medicine, Kitakyusyu, Japan
| | - Masaru Harada
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Japan, School of Medicine, Kitakyusyu, Japan
| |
Collapse
|
18
|
Affiliation(s)
- Keiichiro Kume
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyusyu, Japan
| | - Tatsuyuki Watanabe
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyusyu, Japan
| | - Jyunnzi Oshima
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyusyu, Japan
| | - Ichiro Yoshikawa
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyusyu, Japan
| | - Masaru Harada
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyusyu, Japan
| |
Collapse
|
19
|
Kanazawa A, Kamezaki F, Kido T, Yamasaki S, Someya K, Takama T, Otsubo H, Yoshikawa I, Kamochi M, Mayumi T. Press-through package mis-swallowing: Usefulness of computed tomography. Acute Med Surg 2014; 2:195-198. [PMID: 29123720 DOI: 10.1002/ams2.90] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 06/23/2014] [Revised: 08/08/2014] [Indexed: 11/05/2022] Open
Abstract
Case An 88-year-old female with Alzheimer's-type dementia who mis-swallowed a press-through package visited our emergency department. Outcome Plain radiography detected no foreign bodies, whereas plain computed tomography showed an elliptical body with a high density in the lower esophagus. The press-through package containing a tablet in the esophagogastric junction was successfully removed without severe complications using the endoscopic protector hood. In cases of press-through package mis-swallowing, it is important for emergency physicians to make an early and correct diagnosis of the location of the package, which shows high radiolucency. Based on the results of this case, we hypothesize that carrying out early computed tomography examinations is useful for identifying swallowed press-through packages. Our retrospective investigation showed that computed tomography has a sensitivity of 100% for detecting press-through packages. Conclusion We experienced a case of press-through package mis-swallowing diagnosed on computed tomography. We recommend performing computed tomography examinations, especially in patients with an uncertain history and unclear symptoms.
Collapse
Affiliation(s)
- Ayako Kanazawa
- Department of Emergency Medicine University of Occupational and Environmental Health Kitakyushu Japan.,Intensive Care Unit University of Occupational and Environmental Health Hospital Kitakyushu Japan
| | - Fumihiko Kamezaki
- Department of Emergency Medicine University of Occupational and Environmental Health Kitakyushu Japan
| | - Takashi Kido
- Department of Emergency Medicine University of Occupational and Environmental Health Kitakyushu Japan
| | - Seigen Yamasaki
- Department of Emergency Medicine University of Occupational and Environmental Health Kitakyushu Japan
| | - Kazuki Someya
- Department of Emergency Medicine University of Occupational and Environmental Health Kitakyushu Japan
| | - Tatsuo Takama
- Department of Emergency Medicine University of Occupational and Environmental Health Kitakyushu Japan
| | - Hiroki Otsubo
- Department of Emergency Medicine University of Occupational and Environmental Health Kitakyushu Japan
| | - Ichiro Yoshikawa
- Endoscopy Unit University of Occupational and Environmental Health Hospital Kitakyushu Japan
| | - Masayuki Kamochi
- Intensive Care Unit University of Occupational and Environmental Health Hospital Kitakyushu Japan
| | - Toshihiko Mayumi
- Department of Emergency Medicine University of Occupational and Environmental Health Kitakyushu Japan
| |
Collapse
|
20
|
Yoshioka K, Murakami G, Yamazaki A, Tsuchiya F, Kimura T, Kagitani M, Sakanoi T, Uemizu K, Kasaba Y, Yoshikawa I, Fujimoto M. Evidence for global electron transportation into the jovian inner magnetosphere. Science 2014; 345:1581-4. [PMID: 25258073 DOI: 10.1126/science.1256259] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Jupiter's magnetosphere is a strong particle accelerator that contains ultrarelativistic electrons in its inner part. They are thought to be accelerated by whistler-mode waves excited by anisotropic hot electrons (>10 kiloelectron volts) injected from the outer magnetosphere. However, electron transportation in the inner magnetosphere is not well understood. By analyzing the extreme ultraviolet line emission from the inner magnetosphere, we show evidence for global inward transport of flux tubes containing hot plasma. High-spectral-resolution scanning observations of the Io plasma torus in the inner magnetosphere enable us to generate radial profiles of the hot electron fraction. It gradually decreases with decreasing radial distance, despite the short collisional time scale that should thermalize them rapidly. This indicates a fast and continuous resupply of hot electrons responsible for exciting the whistler-mode waves.
Collapse
Affiliation(s)
- K Yoshioka
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan.
| | - G Murakami
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan
| | - A Yamazaki
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan
| | - F Tsuchiya
- Planetary Plasma and Atmospheric Research Center, Tohoku University, Sendai, Japan
| | - T Kimura
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan
| | - M Kagitani
- Planetary Plasma and Atmospheric Research Center, Tohoku University, Sendai, Japan
| | - T Sakanoi
- Planetary Plasma and Atmospheric Research Center, Tohoku University, Sendai, Japan
| | - K Uemizu
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan. National Astronomical Observatory of Japan, Mitaka, Japan
| | - Y Kasaba
- Department of Geophysics, Tohoku University, Sendai, Japan
| | - I Yoshikawa
- Department of Earth and Planetary Science, University of Tokyo, Tokyo, Japan
| | - M Fujimoto
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan. Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo, Japan
| |
Collapse
|
21
|
Oe S, Watanabe T, Kume K, Shibata M, Hiura M, Yoshikawa I, Harada M. A case of idiopathic gastroesophageal submucosal hematoma and its disappearance observed by endoscopy. J UOEH 2014; 36:123-128. [PMID: 24930876 DOI: 10.7888/juoeh.36.123] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A 74-year-old man was hospitalized due to hematemesis. Upper gastrointestinal endoscopy revealed a very large and dark red mass in the cardiac region of the stomach that extended from the upper esophagus. A biopsy specimen showed hemorrhagic tissue and no malignant cells. The tumor-like region ulcerated at 5 days after the administration of intravenous lansoprazole at a dose of 30 mg twice a day and resolved with scar formation at 2 months after a change to oral rabeprazole at a dose of 10 mg/day.We diagnosed the patient with gastroesophageal submucosal hematoma. Gastroesophageal submucosal hematoma is a rare complication. In this case, we could follow the process of its disappearance by endoscopy.
Collapse
Affiliation(s)
- Shinji Oe
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | | | | | | | | | | | | |
Collapse
|
22
|
Abstract
The higher-order structures of the zinc chlorophyll coordination polymers were controlled by the regiochemistry of the coordination sites.
Collapse
Affiliation(s)
- Y. Shinozaki
- College of Science and Technology
- Nihon University
- Chiyoda-ku, Japan
| | - I. Yoshikawa
- Institute of Industrial Science
- University of Tokyo
- Meguro-ku, Japan
| | - K. Araki
- Institute of Industrial Science
- University of Tokyo
- Meguro-ku, Japan
| | - K. Sugawa
- College of Science and Technology
- Nihon University
- Chiyoda-ku, Japan
| | - J. Otsuki
- College of Science and Technology
- Nihon University
- Chiyoda-ku, Japan
| |
Collapse
|
23
|
Yoshioka K, Homma T, Murakami G, Yoshikawa I. High sensitivity microchannel plate detectors for space extreme ultraviolet missions. Rev Sci Instrum 2012; 83:083117. [PMID: 22938284 DOI: 10.1063/1.4746989] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Microchannel plate (MCP) detectors have been widely used as two-dimensional photon counting devices on numerous space EUV (extreme ultraviolet) missions. Although there are other choices for EUV photon detectors, the characteristic features of MCP detectors such as their light weight, low dark current, and high spatial resolution make them more desirable for space applications than any other detector. In addition, it is known that the photocathode can be tailored to increase the quantum detection efficiency (QDE) especially for longer UV wavelengths (100-150 nm). There are many types of photocathode materials available, typically alkali halides. In this study, we report on the EUV (50-150 nm) QDE evaluations for MCPs that were coated with Au, MgF(2), CsI, and KBr. We confirmed that CsI and KBr show 2-100 times higher QDEs than the bare photocathode MCPs, while Au and MgF(2) show reduced QDEs. In addition, the optimal geometrical parameters for the CsI deposition were also studied experimentally. The best CsI thickness was found to be 150 nm, and it should be deposited on the inner wall of the channels only where the EUV photons initially impinge. We will also discuss the techniques and procedures for reducing the degradation of the photocathode while it is being prepared on the ground before being deployed in space, as adopted by JAXA's EXCEED mission which will be launched in 2013.
Collapse
Affiliation(s)
- K Yoshioka
- ISAS∕JAXA, 3-3-1 Yoshionodai, Sagamihara, Kanagawa 252-5210, Japan
| | | | | | | |
Collapse
|
24
|
Yamaguchi S, Ohguri T, Imada H, Yahara K, Moon SD, Higure A, Yamaguchi K, Yoshikawa I, Harada M, Korogi Y. Multimodal approaches including three-dimensional conformal re-irradiation for recurrent or persistent esophageal cancer: preliminary results. J Radiat Res 2011; 52:812-820. [PMID: 22020080 DOI: 10.1269/jrr.11066] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The purpose of this study was to assess the toxicity and efficacy of multimodal approaches, including three-dimensional conformal re-irradiation, for patients with recurrent or persistent esophageal cancer after radiotherapy. Thirty-one patients with esophageal cancer treated with three-dimensional conformal re-irradiation were retrospectively analyzed. Of the 31 patients, 27 patients received concurrent chemotherapy, and 14 patients underwent regional hyperthermia during the re-irradiation. We divided the patients into two groups on the basis of their clinical condition: the curative group (n = 11) or the palliative group (n = 20). Severe toxicities were detected in one patient with Grade 3 esophageal perforation in the curative group, and 5 patients had a Grade 3 or higher toxicity of the esophagus in the palliative group. Advanced T stage at the time of re-irradiation was found to be significantly correlated with Grade 3 or higher toxicity in the esophagus. For the curative group, 10 (91%) of 11 patients had an objective response. For the palliative group, symptom relief was recognized in 8 (57%) of 14 patients with obvious swallowing difficulty. In conclusion, in the curative group with early-stage recurrent or persistent esophageal cancer, the multimodal approaches, including three-dimensional conformal re-irradiation, may be feasible, showing acceptable toxicity and a potential value of promising results, although further evaluations especially for the toxicities of the organs at risk are required. In the palliative group, the benefit of our therapy may be restrictive because severe esophageal toxicities were not uncommon in the patients with advanced T stage at the time of re-irradiation.
Collapse
Affiliation(s)
- Shinsaku Yamaguchi
- Department of Radiology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Kume K, Yamasaki M, Watanabe T, Yoshikawa I, Otsuki M, Harada M. Mild collateral varices and a fundic plexus without perforating veins on EUS predict endoscopic non-recurrence of esophageal varices after EVL. Hepatogastroenterology 2011; 58:798-801. [PMID: 21830393] [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] [Indexed: 05/31/2023]
Abstract
BACKGROUND/AIMS This study assessed the risk of recurrence of esophageal varices by evaluating the severity of esophageal collateral and cardiac vascular structures in patients with portal hypertension on EUS before endoscopic variceal ligation (EVL). METHODOLOGY Twenty-three consecutive patients with esophageal varices at high risk for bleeding were studied. Simultaneous conventional endoscopy and EUS were performed before endoscopic variceal ligation. Based on EUS findings, vascular structures in the esophageal wall and gastric cardia were classified into two grades, mild and severe, and the relationship between the EUS findings and the esophageal varices recurrence rate was analyzed. RESULTS Recurrence of esophageal varices was detected endoscopically in 16 (69.6%) of the 23 patients within 2 years after EVL. Patients with non-recurrent esophageal varices after EVL were more likely to have mild-grade collateral veins, perforating veins, and a fundic plexus before treatment than those with recurrence. CONCLUSIONS Mild collateral varices and a fundic plexus without perforating veins on EUS before EVL predict long-term endoscopic non-recurrence of esophageal varices after EVL.
Collapse
Affiliation(s)
- Keiichiro Kume
- The Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan.
| | | | | | | | | | | |
Collapse
|
26
|
Affiliation(s)
- K Kume
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Japan, School of Medicine, Kitakyusyu, Japan.
| | | | | | | |
Collapse
|
27
|
Murakami G, Sakai K, Homma T, Yoshioka K, Yoshikawa I, Ichimaru S, Takenaka H. Performance of Y2O3∕Al multilayer coatings for the He-II radiation at 30.4 nm. Rev Sci Instrum 2011; 82:033106. [PMID: 21456717 DOI: 10.1063/1.3560136] [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] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We briefly report on the performance and stability of periodic multilayer mirrors containing Y(2)O(3) and Al layers designed for normal incidence reflection at the He-II emission line (30.4 nm). We found that Y(2)O(3)∕Al multilayer coatings had higher reflectivity (24.9%) at 30.4 nm and significantly lower reflectivity (1.3%) at 58.4 nm than the conventional coatings such as Mo∕Si. Furthermore, we investigated the temporal stability of the Y(2)O(3)∕Al multilayer coatings. Our sample was kept under vacuum, dry N(2) purge, and normal atmosphere for over three months, and there were no measurable changes in the reflectivity. These results suggest that we can use Y(2)O(3)∕Al multilayer coatings as standard mirrors for the He-II radiation.
Collapse
Affiliation(s)
- Go Murakami
- Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan.
| | | | | | | | | | | | | |
Collapse
|
28
|
Murakami G, Yoshioka K, Yoshikawa I. High-resolution imaging detector using five microchannel plates and a resistive anode encoder. Appl Opt 2010; 49:2985-2993. [PMID: 20517366 DOI: 10.1364/ao.49.002985] [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] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We have developed a high-resolution imaging detector with five microchannel plates (MCPs) in a set of V and Z stacks and a resistive anode encoder (RAE) for future space applications. In a position-sensitive system with a RAE, the spatial resolution depends on the signal-to-noise ratios at the anode terminals. Therefore, a high and stable electron gain of MCPs allows the position determination of each photoelectron event with a high spatial resolution. We investigated the effect of the potentials applied to the detector on the pulse height distribution (PHD) and the spatial resolution by means of calculations and experiments. The calculations showed that the negative interstack potential reduced the size of the electron cloud at the Z-stack input by approximately 80%. The result suggests that, under such a condition, the Z-stack MCP is operated in the completely saturated mode and exhibits a narrow PHD. On the other hand, in the measurements, applying the negative interstack potential reduced the width of the PHD by approximately 60%. As a result, the spatial resolution of 45 microm, corresponding to 480x480 pixels, was achieved. The results enable us to optimize and apply the technique to future missions.
Collapse
Affiliation(s)
- Go Murakami
- Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan.
| | | | | |
Collapse
|
29
|
Affiliation(s)
- Yuki Obana
- School of Mathematical and Physical Sciences; University of Newcastle; Newcastle, New South Wales Australia
- Department of Earth and Planetary Science; University of Tokyo; Tokyo Japan
| | - Frederick W. Menk
- School of Mathematical and Physical Sciences; University of Newcastle; Newcastle, New South Wales Australia
| | - Ichiro Yoshikawa
- Department of Earth and Planetary Science; University of Tokyo; Tokyo Japan
| |
Collapse
|
30
|
Affiliation(s)
- K Kume
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyusyu, Japan.
| | | | | | | | | |
Collapse
|
31
|
|
32
|
Affiliation(s)
- K Kume
- Third Department of Internal Medicine, University of Occupational and Environmental Health Japan, School of Medicine, Kitakyusyu, Japan.
| | | | | |
Collapse
|
33
|
Affiliation(s)
- K Kume
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyusyu, Japan.
| | | |
Collapse
|
34
|
|
35
|
Yoshikawa I, Nagato M, Yamasaki M, Kume K, Otsuki M. Long-term treatment with proton pump inhibitor is associated with undesired weight gain. World J Gastroenterol 2009; 15:4794-8. [PMID: 19824113 PMCID: PMC2761557 DOI: 10.3748/wjg.15.4794] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To examine the effects of long-term proton pump inhibitor (PPI) therapy on body weight (BW) and body mass index (BMI) in patients with gastroesophageal reflux disease (GERD).
METHODS: The subjects were 52 patients with GERD and 58 sex- and age-matched healthy controls. GERD patients were treated with PPI for a mean of 2.2 years (range, 0.8-5.7 years), and also advised on lifestyle modifications (e.g. selective diet, weight management). BW, BMI and other parameters were measured at baseline and end of study.
RESULTS: Twenty-four GERD patients were treated daily with 10 mg omeprazole, 12 with 20 mg omeprazole, 8 with 10 mg rabeprazole, 5 with 15 mg lansoprazole, and 3 patients with 30 mg lansoprazole. At baseline, there were no differences in BW and BMI between reflux patients and controls. Patients with GERD showed increases in BW (baseline: 56.4 ± 10.4 kg, end: 58.6 ± 10.8 kg, mean ± SD, P < 0.0001) and BMI (baseline: 23.1 ± 3.1 kg/m2, end: 24.0 ± 3.1 kg/m2, P < 0.001), but no such changes were noted in the control group. Mean BW increased by 3.5 kg (6.2% of baseline) in 37 (71%) reflux patients but decreased in only 6 (12%) patients during treatment.
CONCLUSION: Long-term PPI treatment was associated with BW gain in patients with GERD. Reflux patients receiving PPI should be encouraged to manage BW through lifestyle modifications.
Collapse
|
36
|
Abstract
We herein report the rare complication of sepsis caused by endoscopic clipping for colonic diverticular bleeding. A 78-year-old man with a 12-h history of near syncope and painless hematochezia was admitted to our hospital. Following the transfusion of 4 U of blood and continued hematochezia, a colonoscopy was performed. Active bleeding was seen as continuous arterial spurting from a single diverticulum located in the middle ascending colon. This diverticulum was seamed by four endoclips. The next day, the patient became febrile with a temperature of 39.2°C. Laboratory data included a white blood cell count of 18 100/mm3 and a C-reactive protein level of 3.4 mg/dL. He was diagnosed with sepsis since Escherichia coli was detected in the blood culture. Antibiotics were started. Four days later his fever had improved and laboratory data improved 9 d later.
Collapse
|
37
|
Yoshikawa I. Ein Fall von Idiotie mit Erweichungsherd in den Zentral-Ganglien des Gehirns. Eur Neurol 2009. [DOI: 10.1159/000213470] [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]
|
38
|
Kawano N, Tashiro M, Taguchi M, Kihara Y, Yoshikawa I, Syukuwa K, Yamasaki M, Kume K, Otsuki M. [Combined treatment with dacarbazine, nimustine, cisplatin, and tamoxifen plus interferon-beta in a patient with advanced anorectal malignant melanoma]. Nihon Shokakibyo Gakkai Zasshi 2008; 105:1627-1633. [PMID: 18987448] [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] [Indexed: 05/27/2023]
Abstract
A 73-year-old man, who was diagnosed as having advanced anorectal malignant melanoma (Stage IV), was treated with combination chemotherapy using dacarbazine, nimustine, cisplatin, and tamoxifen plus interferon-beta. After the first course of chemotherapy, rectal tumor was decreased in size with less anal pain and liver tumor was disappeared. Twenty-four months after the first treatment, the patient is survived. DAC-Tam IFN-beta therapy may improve the management of patients who have advanced MM of the anorectum.
Collapse
Affiliation(s)
- Noriko Kawano
- Third Department of Internal Medicine (Gastroenterology and Metabolism), University of Occupational and Environmental Health, Japan, School of Medicine
| | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Maekawa S, Yoshikawa I, Yamasaki M, Kume K, Kanda K, Kihara Y, Tashiro M, Otsuki M. [Episcleritis and erythema nodosum in a patient with ulcerative colitis]. Nihon Shokakibyo Gakkai Zasshi 2008; 105:686-691. [PMID: 18460857] [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] [Indexed: 05/26/2023]
Abstract
A 62-year-old Japanese woman with ulcerative colitis (UC) had episcleritis and erythema nodosum. Oral administration of corticosteroid with granulocytapheresis improved all these diseases. Extraintestinal manifestations such as ocular and skin complications are infrequent, especially in Japan, in patients with UC. Although concurrent onset of episcleritis and erythema nodosum associated with UC is also extremely rare, clinical course in this case suggests a possible association among ulcerative colitis, episcleritis and erythema nodosum.
Collapse
Affiliation(s)
- Satoshi Maekawa
- Third Department of Internal Medicine, Gastroenterology and Metabolism, University of Occupational and Environmental Health, Japan, School of Medicine
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Kume K, Yamasaki M, Tashiro M, Santo N, Syukuwa K, Maekawa S, Aritome G, Matsuoka H, Murase T, Yoshikawa I, Otsuki M. Endoscopic mucosal resection for early gastric cancer: comparison of two modifications of the cap method. Endoscopy 2008; 40:280-3. [PMID: 18389445 DOI: 10.1055/s-2007-995646] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [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: 01/08/2023]
Abstract
BACKGROUND AND STUDY AIM Endoscopic mucosal resection using a cap (EMR-C) is an established method for curative resection of early neoplastic lesions; prelooping of the snare may however be difficult and lead to imprecise resection. We therefore compared two modifications of the conventional technique using outer snare placement with an accessory channel in a prospective, nonrandomized study. PATIENTS AND METHODS Between October 2004 and March 2007, 54 patients (men 37, women 17; mean age 71 years) underwent EMR. One method involved an internally retained snare (IRS) cap, with a fixed prelooped snare inside the cap; the other method used an externally guided snare (EGS) cap with the snare guided over an oblique cap. The main outcome parameters were specimen size, en bloc resection, and complications. RESULTS There was no difference between use of the IRS and EGS cap methods in relation to specimen size (27.6 vs. 27.1 mm), or rates of en bloc resection (88.9 % vs. 83.3 %); only one perforation occurred, and this was in the EGS group. CONCLUSION Both techniques appeared to provide similar efficacy, the inner rim of the IRS cap stabilizes aspiration of the lesion compared with the EGS cap that does not have it.
Collapse
Affiliation(s)
- K Kume
- Department of Gastroenterology and Metabolism, University of Occupational and Environmental Health, School of Medicine, Kitakyusyu, Japan.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Affiliation(s)
- Kayo Honda
- The Third Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu
| | | | | | | | | |
Collapse
|
42
|
Nagata K, Kihara Y, Eguchi R, Nakamura H, Yoshikawa I, Otsuki M. [A case of octreotide acetate-induced acute pancreatitis]. Nihon Shokakibyo Gakkai Zasshi 2007; 104:1652-1657. [PMID: 17984615] [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] [Indexed: 05/25/2023]
Abstract
A 56-year-old man was admitted to our hospital in July 2000 because of epigastralgia and back pain with past history of repeated upper abdominal pain due to acute pancreatitis since 1995. Abdominal computed tomography on admission showed a swelling in the pancreas head and several large pancreatic pseudocysts. He was diagnosed as acute pancreatitis based on abdominal pain, elevated pancreatic enzymes and computed tomography finding, and given 50 microg octreotide subcutaneously for the treatment of pancreatic pseudocysts. Within 3 hours after octreotide injection, he complained of upper abdominal pain and had an elevated serum amylase level. Abdominal pain disappeared after cessation of octreotide injection and the patient was discharged free from abdominal pain. Octreotide might cause acute pancreatitis by inducing spasm of the sphincter of Oddi. Careful check-up of the patients might be needed during treatment with octreotide.
Collapse
Affiliation(s)
- Kaori Nagata
- Department of Gastroenterology and Metabolism, University of Occupational and Environmental Health, Japan, School of Medicine
| | | | | | | | | | | |
Collapse
|
43
|
Tabaru A, Matsuoka H, Maekawa S, Shimada M, Narita R, Abe S, Yamasaki M, Tashiro M, Taguchi M, Yamamoto M, Kihara Y, Kume K, Yoshikawa I, Nakamura H, Otsuki M. [Influence of job-related factors on the clinical course of chronic hepatitis]. Nihon Shokakibyo Gakkai Zasshi 2007; 104:1192-203. [PMID: 17675821] [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] [Indexed: 05/16/2023]
Abstract
Although many workers suffer from chronic hepatitis, the influence of labor on its clinical course is not clear. We prospectively followed 89 workers with chronic hepatitis for 3 years, and examined the relationship between job-related factors, such as job class, job type, working hours and work effort, and the liver function test. There were no job-related factors that had any influence on the activity of hepatitis. Moreover, no significant relationship was found between job-related factors, including tiredness, and the acute exacerbation of hepatitis. No significant changes of aminotransferase levels and of platelet counts divided by each job-related factor were found during the observation period, but the platelet counts decreased in workers with acute exacerbation, but without clinical significance. These results suggest that job-related factors have little influence on the clinical course of chronic hepatitis during a relatively short observation period.
Collapse
Affiliation(s)
- Akinari Tabaru
- Department of Gastroenterology and Metabolism, University of Occupational and Environmental Health, Japan, School of Medicine
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Kume K, Yamasaki M, Yoshikawa I, Otsuki M. Grasping-forceps-assisted endoscopic submucosal dissection using a novel irrigation cap-knife for large superficial early gastric cancer. Endoscopy 2007; 39:566-9. [PMID: 17554656 DOI: 10.1055/s-2007-966394] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
The technique of endoscopic submucosal dissection (ESD) needs special skills and involves a long procedure. We therefore developed a new type of dissection knife, the irrigation cap-knife (the Kume cap-knife attachment, which uses a fixed snare), that facilitates ESD by just sliding over the muscle layer with a coagulating current. The ESD procedure using the irrigation cap-knife was performed in seven patients with intramucosal gastric cancer. The tumor was separated from the surrounding normal mucosa using the insulated-tip knife. Submucosal dissection was then performed by pushing our device along the muscle layer while applying a coagulating current, at the same time as a grasping forceps, deployed through the accessory channel, was used to push the lesion away from the muscle layer. The rate of en bloc resection was 100% (7/7). The irrigating cap-knife was extremely useful for ESD of large intramucosal cancers in the stomach.
Collapse
Affiliation(s)
- K Kume
- Department of Gastroenterology and Metabolism, University of Occupational and Environmental Health, Japan, School of Medicine, Kitakyushu, Japan.
| | | | | | | |
Collapse
|
45
|
Tanaka YT, Yoshikawa I, Yoshioka K, Terasawa T, Saito Y, Mukai T. Gamma-ray detection efficiency of the microchannel plate installed as an ion detector in the low energy particle instrument onboard the GEOTAIL satellite. Rev Sci Instrum 2007; 78:034501. [PMID: 17411203 DOI: 10.1063/1.2713440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
A microchannel plate (MCP) assembly has been used as an ion detector in the low energy particle (LEP) instrument onboard the magnetospheric satellite GEOTAIL. Recently the MCP assembly has detected gamma rays emitted from an astronomical object and has been shown to provide unique information of gamma rays if they are intense enough. However, the detection efficiency for gamma rays was not measured before launch, and therefore we could not analyze the LEP data quantitatively. In this article, we report the gamma-ray detection efficiency of the MCP assembly. The measured efficiencies are 1.29%+/-0.71% and 0.21%+/-0.14% for normal incidence 60 and 662 keV gamma rays, respectively. The incident angle dependence is also presented. Our calibration is crucial to study high energy astrophysical phenomena by using the LEP.
Collapse
Affiliation(s)
- Y T Tanaka
- Department of Earth and Planetary Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | | | | | | | | | | |
Collapse
|
46
|
Kume K, Yamasaki M, Yoshikawa I, Otsuki M. Multi-camera system of the endoscopy: endoscopic mucosal resection for large gastric lesion using a novel 1-channel camera-hood. Endoscopy 2007; 39 Suppl 1:E186-7. [PMID: 17614068 DOI: 10.1055/s-2006-945170] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- K Kume
- The Department of Gastroenterology and Metabolism, University of Occupational and Environmental Health, Japan, School of Medicine, Kitakyushu, Japan
| | | | | | | |
Collapse
|
47
|
Affiliation(s)
- K Kume
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyusyu, Japan
| | | | | | | | | |
Collapse
|
48
|
Affiliation(s)
- K Kume
- The Department of Gastroenterology and Metabolism, University of Occupational and Environmental Health, Japan, School of Medicine, Kitakyushu, Japan.
| | | | | | | |
Collapse
|
49
|
Abstract
Radiation-induced gastritis is a serious complication of radiation therapy for pancreatic cancer which is difficult to manage. A 79-year-old man had been diagnosed as having inoperable pancreatic cancer (stage IVa). We encountered this patient with hemorrhagic gastritis induced by external radiotherapy for pancreatic cancer that was well-treated using argon plasma coagulation (APC). After endoscopic treatment using APC, anemia associated with hemorrhagic radiation gastritis improved and required no further blood transfusion.
Collapse
Affiliation(s)
- Kazutaka Shukuwa
- Department of Gastroenterology and Metabolism, University of Occupational and Environmental Health, Japan, Shool of Medicine, Kitakyushu
| | | | | | | | | |
Collapse
|
50
|
Abstract
BACKGROUND Recent investigations suggest that activation of coagulation and fibrinolysis occurs in patients with ulcerative colitis (UC). However, the role of the hypercoagulable state in UC has not been determined. On the other hand, there are no reports dealing with coagulation in ischemic colitis (IC), in which acute bowel inflammation and reversible vascular occlusion affect the colon. Thus, our aim was to evaluate the hyper states of coagulation and fibrinolysis in UC by comparing activations of coagulation and fibrinolysis in patients with active UC and in those with IC. METHODS Twenty-four patients with active UC and 12 patients with IC were studied, with 18 patients with inactive UC serving as controls. We investigated the activation of the coagulation system, including platelet counts, activated partial thromboplastin time (APTT), thrombin time (TT), prothrombin time (PT), serum concentrations of von Willebrand factor (vWF), activated factors XII, XI, X, IX, VIII, VII, V, II, fibrinogen, prothrombin fragments 1+2 (F1+2), thrombin-antithrombin complexes (TAT), protein S, protein C, plasminogen, alpha-2 plasminogen inhibitor (alpha-2PI) and D-dimer (D-D). RESULTS Median serum vWF concentrations, F1+2, TAT, fibrinogen, activated factor XI, IX, VIII and V were significantly elevated in patients with active UC and IC compared to those in patients with inactive UC. There was no significant difference between active UC and IC patients in the mean values of any of the factors that were measured. CONCLUSION The results of the present study indicate that the coagulation-fibrinolysis system is activated in patients with active bowel inflammation such as active UC and IC, and that the hyper states of coagulation and fibrinolysis in patients with active UC are secondary to bowel inflammation.
Collapse
Affiliation(s)
- Keiichiro Kume
- Department of Gastroenterology and Metabolism, University of Occupational and Environmental Health, Japan, School of Medicine, Kitakyusyu.
| | | | | | | | | |
Collapse
|