List of COVID-19 Issues
Original Article
Association between the decrease in medical visit frequency and chronic disease worsening in the early stages of COVID-19-A longitudinal study-
Takeshi Takakubo, Yuko Odagiri, Masaki Machida, Tomoko Takamiya, Noritoshi Fukushima, Hiroyuki Kikuchi, Toshio Hayashi, Shiho Amagasa, Shigeru Inoue
DOI: https://doi.org/10.2169/internalmedicine.2697-23
Advance Publication: April 2, 2024
The Epidemiology of Circulating Respiratory Pathogens During the COVID-19 Pandemic
Haruka Imai, Jun Suzuki, Shota Takahashi, Daishi Shimada, Makiko Yoshida, Shiro Endo, Mitsuo Kaku
DOI: https://doi.org/10.2169/internalmedicine.3266-23
Advance Publication: March 18, 2024
A Reduction in the Number of Hospitalized Cases of Acute Meningitis during the COVID-19 Pandemic in Japan
Tetsuya Akaishi, Kunio Tarasawa, Kiyohide Fushimi, Chiharu Ota, Sumireko Sekiguchi, Tetsuji Aoyagi, Nobuo Yaegashi, Masashi Aoki, Kenji Fujimori
DOI: https://doi.org/10.2169/internalmedicine.3022-23
Published: May 15, 2024
Impact of the State of Emergency Declaration for Severe Acute Respiratory Syndrome Coronavirus-2 Pandemic Suppression on Individuals with Type 1 Diabetes Mellitus
Shota Mochizuki, Junnosuke Miura, Satoshi Takagi, Mikako Takita, Hiroko Takaike, Tetsuya Babazono
DOI: https://doi.org/10.2169/internalmedicine.2703-23
Published: May 1, 2024
Disease Flares Following COVID-19 Vaccination in Patients with Inflammatory Bowel Disease
Yuichiro Yoshida, Shin Fujioka, Tomohiko Moriyama, Junji Umeno, Keisuke Kawasaki, Yuta Fuyuno, Yuichi Matsuno, Yutaro Ihara, Takehiro Torisu, Takanari Kitazono
DOI: https://doi.org/10.2169/internalmedicine.2335-23
Published: December 15, 2023
Comparison of the Serial Humoral Immune Response according to the Immunosuppressive Treatment after SARS-CoV-2 mRNA Vaccination
Hiroya Menjo, Midori Hasegawa, Hidetsugu Fujigaki, Takuma Ishihara, Shun Minatoguchi, Shigehisa Koide, Hiroki Hayashi, Midori Saito, Kazuo Takahashi, Hiroyasu Ito, Yukio Yuzawa, Kuniaki Saito, Naotake Tsuboi
DOI: https://doi.org/10.2169/internalmedicine.1949-23
Published: December 1, 2023
Histologic Characteristics and Clinical Courses of Primary Viral Pneumonia Other than COVID-19
Takashi Ishiguro, Riho Toriba, Ryuji Uozumi, Hidehiro Numagami, Yoshihiko Shimizu
DOI: https://doi.org/10.2169/internalmedicine.2433-23
Published: December 15, 2023
Safety and Efficacy of Combination Therapy of Remdesivir, Baricitinib, and High-dose Steroids in Patients Hospitalized with Moderate to Severe COVID-19
Ryo Nagasawa, Takashi Niwa, Eri Hagiwara, Tsuneyuki Oda, Sho Yamada, Ryo Okuda, Tomohisa Baba, Shigeru Komatsu, Takeshi Kaneko, Takashi Ogura
DOI: https://doi.org/10.2169/internalmedicine.0761-22
Published: November 1, 2023
Role of Fibrin Monomer Complex in Coronavirus Disease 2019 for Venous Thromboembolism and the Prognosis
Chiaki Kawame, Hajime Kasai, Shunya Shiohira, Toshihiko Sugiura, Yuki Shiko, Seiichiro Sakao, Takuji Suzuki
DOI: https://doi.org/10.2169/internalmedicine.1322-22
Published: October 15, 2023
D-dimer and Beyond: Harnessing the Potential of New Coagulation Indicators in COVID-19 Management
Eiji Shibahashi, Kentaro Jujo
DOI: https://doi.org/10.2169/internalmedicine.2355-23
Published: October 15, 2023
The Impact of Liver Chemistries on Respiratory Failure among Hemodialysis Patients with COVID-19 during the Omicron Wave
Mayuko Hori, Kaoru Yasuda, Hiroshi Takahashi, Tomonori Aoi, Yoshiko Mori, Makoto Tsujita, Yuichi Shirasawa, Chika Kondo, Takashi Hashimoto, Hiroichi Koyama, Kunio Morozumi, Shoichi Maruyama
DOI: https://doi.org/10.2169/internalmedicine.2115-23
Published: September 15, 2023
Extension of Selection Time for the Emergency Destination of Patients with a Fever Due to the Coronavirus Disease 2019 Pandemic: A Difference-in-differences Analysis
Ryuichi Nakayama, Shuji Uemura, Masayuki Koyama, Masahiro Hara, Naofumi Bunya, Keigo Sawamoto, Hirofumi Ohnishi, Eichi Narimatsu
DOI: https://doi.org/10.2169/internalmedicine.1852-23
Published: September 15, 2023
Risk Factors Related to Severity in COVID-19 Patients: A Real-world Retrospective Cohort Study
Hiromichi Kawaji, Nobuhito Kishimoto, Naoki Muguruma, Hiroyuki Kozai, Noriaki Horiuchi
DOI: https://doi.org/10.2169/internalmedicine.1934-23
Published: September 15, 2023
A Comparison of Clinical Presentations in Coronavirus Disease 2019 Caused by Different Omicron Variants in Japan: A Retrospective Study
Ryutaro Hirama, Kenichiro Takeda, Seiichiro Sakao, Hajime Kasai, Shizu Miyata, Kohei Shikano, Akira Naito, Mitsuhiro Abe, Takeshi Kawasaki, Ayako Shigeta, Taka-aki Nakada, Hidetoshi Igari, Takuji Suzuki
DOI: https://doi.org/10.2169/internalmedicine.1399-22
Published: August 15, 2023
Risk Factors Associated with Mortality among Mechanically Ventilated Patients with Coronavirus Disease 2019 Pneumonia: A Multicenter Cohort Study in Japan (J-RECOVER Study)
Mayu Hikone, Keita Shibahashi, Masahiro Fukuda, Yuichiro Shimoyama, Kazuma Yamakawa, Akira Endo, Mineji Hayakawa, Takayuki Ogura, Atsushi Hirayama, Hideo Yasunaga, Takashi Tagami, J-RECOVER Study Group
DOI: https://doi.org/10.2169/internalmedicine.1740-23
Published: August 1, 2023
The Clinical Utility of Relative Bradycardia for Identifying Cases of Coronavirus Disease 2019 Pneumonia: A Retrospective Pneumonia Cohort Study
Takao Wakabayashi, Hiroyoshi Iwata
DOI: https://doi.org/10.2169/internalmedicine.1469-22
Published: July 1, 2023
COVID-19 Cluster in the Hematology/Respirology Ward of a University Hospital during the Seventh Wave of the SARS-CoV-2 Pandemic in Japan: A Descriptive Study
Fumiya Ogasawara, Shohei Yoshida, Mayuka Yamane, Kazufumi Takamatsu, Yu Arakawa, Yoshie Nishida, Megumi Komatsu, Akihito Yokoyama, Yuka Yamagishi, Kensuke Kojima
DOI: https://doi.org/10.2169/internalmedicine.1252-22
Published: May 1, 2023
Influence of Nutritional Guidance/Consulting on Glycemic Control during the Coronavirus Disease 2019 Pandemic in Patients with Type 2 Diabetes Mellitus
Yuichiro Iwamoto, Shuhei Nakanishi, Hideyuki Iwamoto, Junpei Sanada, Yoshiro Fushimi, Yukino Katakura, Tomohiko Kimura, Fuminori Tatsumi, Masashi Shimoda, Tomoatsu Mune, Kohei Kaku, Hideaki Kaneto
DOI: https://doi.org/10.2169/internalmedicine.1055-22
Published: March 15, 2023
Time Course of Coagulopathy Evaluated with Rotational Thromboelastometry in Patients with Severe Coronavirus Disease 2019
Takeshi Yagi, Motoki Fujita, Kayoko Harada, Masaru Shin, Yusuke Esaki, Ryo Ayata, Yasutaka Koga, Kotaro Kaneda, Ryosuke Tsuruta
DOI: https://doi.org/10.2169/internalmedicine.0993-22
Published: March 1, 2023
Actual Telemedicine Needs of Japanese Patients with Neurological Disorders in the COVID-19 Pandemic
Ryo Sasaki, Taijun Yunoki, Yumiko Nakano, Yusuke Fukui, Mami Takemoto, Ryuta Morihara, Koji Abe, Toru Yamashita
DOI: https://doi.org/10.2169/internalmedicine.9702-22
Published: February 1, 2023
Mortality Prediction of COVID-19 in Hospitalized Patients Using the 2020 Diagnosis Procedure Combination Administrative Database of Japan
Shuko Nojiri, Yoshiki Irie, Rie Kanamori, Toshio Naito, Yuji Nishizaki
DOI: https://doi.org/10.2169/internalmedicine.0086-22
Published: January 15, 2023
Conventional and Kampo Medicine Treatment for Mild-to-moderate COVID-19: A Multicenter, Retrospective, Observational Study by the Integrative Management in Japan for Epidemic Disease (IMJEDI Study-observation)
Shin Takayama, Tetsuhiro Yoshino, Sayaka Koizumi, Yasuhito Irie, Tomoko Suzuki, Susumu Fujii, Rie Katori, Mosaburo Kainuma, Seiichi Kobayashi, Tatsuya Nogami, Kenichi Yokota, Mayuko Yamazaki, Satoko Minakawa, Shigeki Chiba, Norio Suda, Yoshinobu Nakada, Tatsuya Ishige, Hirofumi Maehara, Yutaka Tanaka, Mahiko Nagase, Akihiko Kashio, Kazuhisa Komatsu, Makoto Nojiri, Osamu Shimooki, Kayo Nakamoto, Ryutaro Arita, Rie Ono, Natsumi Saito, Akiko Kikuchi, Minoru Ohsawa, Hajime Nakae, Tadamichi Mitsuma, Masaru Mimura, Tadashi Ishii, Kotaro Nochioka, Shih-Wei Chiu, Takuhiro Yamaguchi, Takao Namiki, Akito Hisanaga, Kazuo Mitani, Takashi Ito
DOI: https://doi.org/10.2169/internalmedicine.0027-22
Published: January 15, 2023
Cases of Rapid Hepatitis B Surface Antigen Reduction after COVID-19 Vaccination
Yosuke Osawa, Takaaki Ohtake, Daisuke Suto, Takayuki Akita, Hidehiko Yamada, Yutaka Kohgo, Kazumoto Murata
DOI: https://doi.org/10.2169/internalmedicine.0842-22
Published: January 1, 2023
SARS-CoV-2 Infection upon Leaving the Tokyo 2020 Olympic and Paralympic Games
Mitsuyoshi Urashima, Hiroyuki Takao, Teppei Sakano, Kohei Takeshita, Masaki Yoshida, Yasushi Nakazawa, Makoto Kawai, Yuichi Murayama
DOI: https://doi.org/10.2169/internalmedicine.0724-22
Published: December 15, 2022
Impact of the COVID-19 Pandemic on the Management and End-of-life Care of Unresectable Pancreatic Cancer
Akiyoshi Kasuga, Masanori Nojima, Takeshi Okamoto, Takahiro Ishitsuka, Manabu Yamada, Hiroki Nakagawa, Shohei Udagawa, Chinatsu Mori, Takafumi Mie, Takaaki Furukawa, Yuto Yamada, Tsuyoshi Takeda, Masato Matsuyama, Takashi Sasaki, Masato Ozaka, Naoki Sasahira
DOI: https://doi.org/10.2169/internalmedicine.0492-22
Published: December 15, 2022
Timeline of Oxygen Demand in Patients with COVID-19 Pneumonia
Tsuneyuki Oda, Eri Hagiwara, Takafumi Yamaya, Takashi Ogura
DOI: https://doi.org/10.2169/internalmedicine.0190-22
Published: December 15, 2022
The Clinical Significance of Otolaryngology Manifestations in COVID-19 Pneumonia: A Single-center Retrospective Cohort Study
Hiroyoshi Iwata, Takao Wakabayashi, Natsuko Inazawa
DOI: https://doi.org/10.2169/internalmedicine.0282-22
Published: December 1, 2022
Association of Systemic Adverse Reactions and Serum SARS-CoV-2 Spike Protein Antibody Levels after Administration of BNT162b2 mRNA COVID-19 Vaccine
Wataru Takahashi, Toshiko Mizuno, Kaori Hara, Yoshiaki Ara, Rikiya Hurutani, Toshihiko Agatsuma, Minoru Fujimori
DOI: https://doi.org/10.2169/internalmedicine.9699-22
Published: November 1, 2022
The Assessment of the Efficacy and Safety of Favipiravir for Patients with SARS-CoV-2 Infection: A Multicenter Non-randomized, Uncontrolled Single-arm Prospective Study
Kunio Yanagisawa, Katsuhiko Takara, Hiroyuki Suga, Akio Saito, Toshimasa Hayashi, Tsuneo Igarashi, Sachi Tomizawa, Etsuko Saito, Hisako Sumiyoshi, Yoshiaki Ohyama, Yutaka Tokue, Tetsuya Nakamura
DOI: https://doi.org/10.2169/internalmedicine.9691-22
Published: November 1, 2022
The Proportion of Long-term Response to Anti-N IgG Antibody after 12 Months for COVID-19 Subclinical Infections and a Longitudinal Survey for COVID-19 Subclinical Infections in 2021
Ikuro Matsuba, Tetsuo Takuma, Nobuo Hatori, Masahiko Takai, Yoshiyuki Watanabe, Nobukazu Takada, Satoru Kishi, Yoko Matsuzawa, Tetsuo Nishikawa, Tomoyuki Kunishima, Hisakazu Degawa, Masanori Nishikawa, Yoshiaki Ono, Masaaki Miyakawa, Yutaka Hatori, Akira Kanamori
DOI: https://doi.org/10.2169/internalmedicine.9628-22
Published: October 15, 2022
Outcomes of Interferon-free Treatment of Hepatitis C Virus Infection Seven Years after Approval and Problems with Drop out during and after Treatment: A Retrospective, Single-center Study
Masaaki Watanabe, Hiroaki Yokomori, Gen Kitahara, Kazuho Uehara, Shiori Koyama, Tsutomu Minamino, Toshikazu Otsuka, Toru Kaneko, Kumiko Tahara, Mitsuhiro Kida
DOI: https://doi.org/10.2169/internalmedicine.0036-22
Published: October 15, 2022
Educational Approaches That Enhance Online Clinical Clerkship during the COVID-19 Pandemic
Naoto Kuroda, Anna Suzuki, Kai Ozawa, Nobuhiro Nagai, Yurika Okuyama, Kana Koshiishi, Masafumi Yamada, Yoshihiko Raita, Yosuke Kakisaka, Nobukazu Nakasato, Makoto Kikukawa
DOI: https://doi.org/10.2169/internalmedicine.9291-21
Published: August 15, 2022
Addition of Baricitinib to COVID-19 Treatment Does Not Increase Bacterial Infection Compared to Standard Therapy: A Single-center Retrospective Study
Hiroshi Kobe, Akihiro Ito, Yosuke Nakanishi, Akira Kuriyama, Hiromasa Tachibana, Tadashi Ishida
DOI: https://doi.org/10.2169/internalmedicine.9534-22
Published: August 1, 2022
Related Article / Letter
Duration of Intensive Respiratory Support and Risk of Long-term Respiratory Failure in Patients with COVID-19
Hiroaki Ogata, Yujiro Jingushi, Katsuyuki Katahira, Akiko Ishimatsu, Yasuaki Kotetsu, Kachi Sha, Aimi Enokizu-Ogawa, Kazuhito Taguchi, Atsushi Moriwaki, Makoto Yoshida
DOI: https://doi.org/10.2169/internalmedicine.0660-22
Published: November 15, 2022
Seizure Control in Patients with Epilepsy during the COVID-19 Pandemic: A Systematic Review and Meta-analysis
Naoto Kuroda, Prasannakumar Kanubhai Gajera, Hongxuyang Yu, Takafumi Kubota
DOI: https://doi.org/10.2169/internalmedicine.9321-22
Published: August 1, 2022
Development and Validation of a Performance Assessment Checklist Scale for Vaccine Administration
Hirohisa Fujikawa, Toshichika Mitsuyama, Daisuke Son, Masashi Izumiya, Masato Eto
DOI: https://doi.org/10.2169/internalmedicine.9268-21
Published: August 1, 2022
A Convenient Risk Prediction Score for COVID-19 for Determining Whether or Not Hospitalization Is Recommended: Kanagawa Admission Priority Assessment Score
Nobumasa Tamura, Shota Uchiyama, Saiko Nishioka, Kentaro Tamura, Masahiro Yoshida, Zenya Saito, Kazuyoshi Kuwano
DOI: https://doi.org/10.2169/internalmedicine.9262-21
Published: July 15, 2022
Multiple Types of Taste Disorders among Patients with COVID-19
Yuta Nanjo, Tomoko Okuma, Yumi Kuroda, Eri Hayakawa, Kohei Shibayama, Takashi Akimoto, Ryoko Murashima, Koichiro Kanamori, Takeo Tsutsumi, Yohei Suzuki, Yukiko Namba, Fumihiko Makino, Osamu Nagashima, Shinichi Sasaki, Kazuhisa Takahashi
DOI: https://doi.org/10.2169/internalmedicine.9065-21
Published: July 15, 2022
Immunogenicity against the BNT162b2 mRNA COVID-19 Vaccine in Rheumatic Disease Patients Receiving Immunosuppressive Therapy
Koichi Sugihara, Risa Wakiya, Hiromi Shimada, Tomohiro Kameda, Shusaku Nakashima, Mikiya Kato, Taichi Miyagi, Mao Mizusaki, Rina Mino, Yumi Nomura, Masayuki Inoo, Norimitsu Kadowaki, Hiroaki Dobashi
DOI: https://doi.org/10.2169/internalmedicine.9223-21
Published: July 1, 2022
Anti-SARS CoV-2 IgG in COVID-19 Patients with Hematological Diseases: A Single-center, Retrospective Study in Japan
Takayuki Fujii, Masao Hagihara, Keiko Mitamura, Shiori Nakashima, Shin Ohara, Tomoyuki Uchida, Morihiro Inoue, Moe Okuda, Atsuhiro Yasuhara, Jurika Murakami, Calvin Duong, Kiyoko Iwatsuki-Horimoto, Seiya Yamayoshi, Yoshihiro Kawaoka
DOI: https://doi.org/10.2169/internalmedicine.9209-21
Published: June 1, 2022
Effect of the Coronavirus Disease 2019 Lockdown on Lifestyle Factors in Japanese Patients with Inflammatory Bowel Disease
Yu Nishida, Shuhei Hosomi, Koji Fujimoto, Rieko Nakata, Shigehiro Itani, Masaki Ohminami, Yuji Nadatani, Shusei Fukunaga, Koji Otani, Fumio Tanaka, Yasuaki Nagami, Koichi Taira, Noriko Kamata, Satoko Ohfuji, Yasuhiro Fujiwara
DOI: https://doi.org/10.2169/internalmedicine.8825-21
Published: May 1, 2022
Factors Associated with Change in SARS-CoV-2 Antibody Titers from Three to Six Months after the Administration of the BNT162b2 mRNA COVID-19 Vaccine among Healthcare Workers in Japan: A Prospective Study
Takeshi Mochizuki, Takaki Hori, Koichiro Yano, Katsunori Ikari, Ken Okazaki
DOI: https://doi.org/10.2169/internalmedicine.8902-21
Published: April 15, 2022
Related Article / Letter
Changes in SARS-CoV-2 Antibody Titers from Three to Nine Months after Administration of the BNT162b2 mRNA Vaccine among Healthcare Workers in Japan: A Prospective Study
Takeshi Mochizuki, Takaki Hori, Koichiro Yano, Katsunori Ikari, Ken Okazaki
DOI: https://doi.org/10.2169/internalmedicine.9695-22
Published: July 1, 2022
Antibody Responses to the BNT162b2 mRNA Vaccine in Healthcare Workers in a General Hospital in Japan: A Comparison of Two Assays for Anti-spike Protein Immunoglobulin G
Makoto Hibino, Shigehiro Watanabe, Riko Kamada, Shunichi Tobe, Kazunari Maeda, Shigeto Horiuchi, Tetsuri Kondo
DOI: https://doi.org/10.2169/internalmedicine.8704-21
Published: March 15, 2022
Prevalence of Burnout among Internal Medicine and Primary Care Physicians before and during the COVID-19 Pandemic in Japan
Saori Nonaka, Tetsuya Makiishi, Yoshito Nishimura, Kazuya Nagasaki, Kiyoshi Shikino, Masashi Izumiya, Mitsuru Moriya, Michito Sadohara, Yoichi Ohtake, Akira Kuriyama
DOI: https://doi.org/10.2169/internalmedicine.8118-21
Published: March 1, 2022
Medium-term Influence of the Coronavirus Disease 2019 Pandemic on Patients with Diabetes: A Single-center Cross-sectional Study
Yumiko Maruo, Yoko Irie, Yoshinari Obata, Kana Takayama, Hiroki Yamaguchi, Motohiro Kosugi, Yoji Hazama, Tetsuyuki Yasuda
DOI: https://doi.org/10.2169/internalmedicine.8010-21
Published: February 1, 2022
Study on Continuation of Antibody Prevalence Six Months after Detection of Subclinical Severe Acute Respiratory Syndrome Coronavirus 2 Infections
Ikuro Matsuba, Tetsuo Takuma, Nobuo Hatori, Masahiko Takai, Yoshiyuki Watanabe, Nobukazu Takada, Satoru Kishi, Yoko Matsuzawa, Tetsuo Nishikawa, Tomoyuki Kunishima, Hisakazu Degawa, Masanori Nishikawa, Yoshiaki Ono, Akira Kanamori
DOI: https://doi.org/10.2169/internalmedicine.8019-21
Published: January 15, 2022
Impact of the COVID-19 Pandemic on Glycemic Control and Blood Pressure Control in Patients with Diabetes in Japan
Keisuke Endo, Takayuki Miki, Takahito Itoh, Hirofumi Kubo, Ryosuke Ito, Kouhei Ohno, Hiroyuki Hotta, Nobuo Kato, Tomoaki Matsumoto, Aya Kitamura, Mai Tamayama, Takako Wataya, Ayaka Yamaya, Rei Ishikawa, Hitoshi Ooiwa
DOI: https://doi.org/10.2169/internalmedicine.8041-21
Published: January 1, 2022
The Effects of Stress on Glycemic Control Brought on by Changes in Social Conditions Due to COVID-19
Mio Masuda, Osamu Tomonaga
DOI: https://doi.org/10.2169/internalmedicine.8134-21
Published: December 15, 2021
Impact of the COVID-19 Pandemic on ST-elevation Myocardial Infarction from a Single-center Experience in Tokyo
Yukihiro Watanabe, Hideki Miyachi, Kosuke Mozawa, Kenta Yamada, Eiichiro Oka, Reiko Shiomura, Yoichiro Sugizaki, Junya Matsuda, Jun Nakata, Shuhei Tara, Yukichi Tokita, Yu-ki Iwasaki, Takeshi Yamamoto, Hitoshi Takano, Wataru Shimizu
DOI: https://doi.org/10.2169/internalmedicine.8220-21
Published: December 1, 2021
Frequency and Significance of Coinfection in Patients with COVID-19 at Hospital Admission
Takashi Ishiguro, Yasuhito Kobayashi, Yosuke Shimizu, Yukari Uemura, Taisuke Isono, Kenji Takano, Takashi Nishida, Yoichi Kobayashi, Chiaki Hosoda, Yotaro Takaku, Yoshihiko Shimizu, Noboru Takayanagi
DOI: https://doi.org/10.2169/internalmedicine.8021-21
Published: December 1, 2021
Neurological Manifestations and Long-term Sequelae in Hospitalized Patients with COVID-19
Hiroyuki Ishiyama, Junko Ishii, Hajime Yoshimura, Marie Tsunogae, Satoru Fujiwara, Satomi Hiya, Ryoma Inui, Yuma Shiomi, Shinsaku Nakazawa, Masamune Kimura, Takehito Kuroda, Yasutaka Murakami, Kota Maekawa, Nobuyuki Ohara, Nobuo Kohara, Michi Kawamoto
DOI: https://doi.org/10.2169/internalmedicine.7802-21
Published: November 15, 2021
Prevalence of COVID-19 Mimics in the Emergency Department
Satoshi Kurihara, Mikio Nakajima, Richard H. Kaszynski, Yasuhiro Yamamoto, Koichiro Santo, Ryo Takane, Hayato Tokuno, Ayaka Ishihata, Hitoshi Ando, Maki Miwa, Shoichiro Hamada, Tomotsugu Nakano, Masamitsu Shirokawa, Hideaki Goto, Yoshihiro Yamaguchi
DOI: https://doi.org/10.2169/internalmedicine.6434-20
Published: October 1, 2021
Efficacy of Chest Radiography as a Primary Care Triage Tool in Severe Coronavirus Disease
Hisashi Sasaki, Shuichi Kawano, Shinichiro Ota, Hiroaki Taniguchi, Tatsuya Kodama, Hirofumi Obinata, Kaku Tamura, Toshimitsu Ito, Yasuhide Uwabe
DOI: https://doi.org/10.2169/internalmedicine.5205-20
Published: September 15, 2021
Discriminatory Value of Self-reported Olfactory Dysfunction in the Prediction of Coronavirus Disease 2019
Tetsuya Akaishi, Shigeki Kushimoto, Yukio Katori, Shigeo Kure, Kaoru Igarashi, Motoo Fujita, Shin Takayama, Michiaki Abe, Akiko Kikuchi, Junichi Tanaka, Yoshiko Abe, Hiroyuki Imai, Yohei Inaba, Yoko Iwamatsu-Kobayashi, Takashi Nishioka, Ko Onodera, Tadashi Ishii
DOI: https://doi.org/10.2169/internalmedicine.7238-21
Published: September 15, 2021
Psychological Effects on Healthcare Workers During the COVID-19 Outbreak: A Single-center Study at a Tertiary Hospital in Tokyo, Japan
Motonao Ishikawa, Tomoko Ogasawara, Kenichiro Takahashi, Takuya Ono, Kazuhiro Matsui, Shoko Marshall, Ayana Sakurai, Yoshikazu Aoka, Tempei Otsubo, Yasuto Sato, Hiroshi Sakura, Yasuko Uchigata
DOI: https://doi.org/10.2169/internalmedicine.7207-21
Published: September 1, 2021
Related Article / Editorial
Great Psychological Distress Induced by COVID-19 on Healthcare Workers in Japan
Renpei Sengoku
DOI: https://doi.org/10.2169/internalmedicine.8014-21
Published: September 1, 2021
SARS-CoV-2 Infection among Medical Institution Faculty and Healthcare Workers in Tokyo, Japan
Tomoyasu Nishimura, Yoshifumi Uwamino, Shunsuke Uno, Shoko Kashimura, Toshikimi Shiraki, Toshinobu Kurafuji, Maasa Morita, Masayo Noguchi, Tatsuhiko Azegami, Nobuko Yamada-Goto, Ayano Murai-Takeda, Hirokazu Yokoyama, Kazuyo Kuwabara, Suzuka Kato, Minako Matsumoto, Aya Hirata, Miho Iida, Sei Harada, Tamami Ishizaka, Kana Misawa, Mitsuru Murata, Hideyuki Saya, Masayuki Amagai, Yuko Kitagawa, Tsutomu Takeuchi, Masaaki Mori, Toru Takebayashi, Naoki Hasegawa,the Keio Donner Project Team
DOI: https://doi.org/10.2169/internalmedicine.7033-21
Published: August 15, 2021
Contradictory Responses to the COVID-19 Pandemic in Amyotrophic Lateral Sclerosis Patients and Their Families and Caregivers in Japan
Masaru Yanagihashi, Tatsuki Sugisawa, Masaaki Fuchimoto, Yuuichi Saotome, Keiko Onozawa, Yukinori Matsumoto, Kota Bokuda, Junya Ebina, Mari Shibukawa, Takehisa Hirayama, Yoshitaka Murakami, Naohiro Washizawa, Satoru Ebihara, Osamu Kano
DOI: https://doi.org/10.2169/internalmedicine.6810-20
Published: May 15, 2021
Clinical Features of 154 COVID-19 Patients and the Parameters for the Effective Detection of Pneumonia at the Time of the Initial Diagnosis in Japan
Miwa Morikawa, Masahiro Shinoda, Shinichiro Ota, Yuto Yoshida, Takatomo Hirouchi, Kanako Shinada, Osamu Sasaki, Takashi Sato, Kenichi Kamachi, Masaharu Shinkai
DOI: https://doi.org/10.2169/internalmedicine.5528-20
Published: January 1, 2021
Clinical and Microbiological Features of Asymptomatic SARS-CoV-2 Infection and Mild COVID-19 in Seven Crewmembers of a Cruise Ship
Takayuki Hoshiyama, Tatsuhiko Wada, Shin Nihonyanagi, Ryo Kameda, Minako Yamaoka-Tojo, Michinari Fukuda, Jyunya Ako, Kunihiro Yamaoka, Yoko Takayama
DOI: https://doi.org/10.2169/internalmedicine.5601-20
Published: December 15, 2020
Non-COVID-19 Patients with Life-threatening Diseases Who Visited a Fever Clinic: A Single-Center, Observational Study in Tokyo, Japan
Yutaro Akiyama, Shinichiro Morioka, Yuji Wakimoto, Akira Kawashima, Kohei Kanda, Ayako Okuhama, Tetsuya Suzuki, Yusuke Miyazato, Hidetoshi Nomoto, Satoshi Ide, Takato Nakamoto, Keiji Nakamura, Masayuki Ota, Yuki Moriyama, Saho Takaya, Kota Yamada, Maho Taguchi, Erika Sugito, Shinji Izuka, Kenji Ishiguro, Toshiaki Kobayashi, Wataru Miyake, Shuji Kubota, Masahiro Ishikane, Noriko Kinoshita, Kei Yamamoto, Mugen Ujiie, Satoshi Kutsuna, Kayoko Hayakawa, Sho Saito, Norio Ohmagari
DOI: https://doi.org/10.2169/internalmedicine.5614-20
Published: December 15, 2020
Anxiety, Depression, and Resilience of Healthcare Workers in Japan During the Coronavirus Disease 2019 Outbreak
Nobuyasu Awano, Nene Oyama, Keiko Akiyama, Minoru Inomata, Naoyuki Kuse, Mari Tone, Kohei Takada, Yutaka Muto, Kazushi Fujimoto, Yu Akagi, Momoko Mawatari, Akihiro Ueda, Junko Kawakami, Junko Komatsu, Takehiro Izumo
DOI: https://doi.org/10.2169/internalmedicine.5694-20
Published: November 1, 2020
Clinical Features and Liver Injury in Patients with COVID-19 in the Japanese Population
Koichiro Abe, Takatsugu Yamamoto, Kotaro Matsumoto, Kentaro Kikuchi, Ryo Miura, Naoko Tachizawa, Yoshinari Asaoka, Tomoko Takezawa, Naohisa Matsunaga, Shuntaro Obi, Atsushi Tanaka
DOI: https://doi.org/10.2169/internalmedicine.5777-20
Published: October 1, 2020
Case Report
Fatal systemic capillary leak syndrome in a patient with a COVID-19 infection
Hiroaki Kawano, Masataka Umeda, Tomohiro Honda, Ryosuke Iwasaki, Shinji Okano, Ryohei Akashi, Tomohiro Koga, Koichi Izumikawa, Atsushi Kawakami, Koji Maemura
DOI: https://doi.org/10.2169/internalmedicine.3637-24
Advance Publication: April 23, 2024
Repeated Syncope Following COVID-19 Infection
Yoh Arita, Kota Takaki, Yuto Suetani, Kana Shichijo, Nobuyuki Ogasawara
DOI: https://doi.org/10.2169/internalmedicine.3324-23
Published: May 15, 2024
An Autopsy Case of COVID-19 with New Diffuse Pulmonary Ossification
Taisuke Nakagawa, Yasuaki Kotetsu, Katsumi Takizawa, Michihiro Yoshimi, Isamu Okamoto, Shohei Takata
DOI: https://doi.org/10.2169/internalmedicine.3096-23
Published: May 15, 2024
New-onset Systemic Lupus Erythematosus Manifestation Following COVID-19: A Case Report and Literature Review
Yuya Sumichika, Jumpei Temmoku, Kenji Saito, Shuhei Yoshida, Haruki Matsumoto, Guy Watanabe, Akihito Utsumi, Yuya Fujita, Naoki Matsuoka, Tomoyuki Asano, Shuzo Sato, Kiyoshi Migita
DOI: https://doi.org/10.2169/internalmedicine.3211-23
Published: May 15, 2024
Significance of Persistent Systemic Support in the Clinical Course of Delayed Post-hypoxic Leukoencephalopathy Following Severe Coronavirus Disease 2019
Juri Kawasaki, Naoko Mato, Hiroyuki Fujii, Kumiko Miura, Takafumi Mashiko, Shinshu Katayama, Yoshitaka Yamanouchi, Miki Sato, Toshikazu Takasaki, Ayako Takigami, Shu Hisata, Shin Nunomiya, Koichi Hagiwara, Makoto Maemondo
DOI: https://doi.org/10.2169/internalmedicine.1412-22
Published: April 15, 2024
Anaphylaxis and Severe Disseminated Intravascular Coagulation Due to Remdesivir
Noriyasu Fukushima, Kazuharu Kamachi, Tomonori Sato, Keitaro Ishii, Rika Tomimasu, Masaharu Miyahara
DOI: https://doi.org/10.2169/internalmedicine.2994-23
Published: March 15, 2024
An Elderly Patient Developed Ulcerative Colitis after SARS-CoV-2 mRNA Vaccination: A Case Report and Review of the Literature
Takahito Shimada, Jun Takada, Atsushi Baba, Masahide Iwashita, Takao Hayashi, Teruo Maeda, Masahito Shimizu
DOI: https://doi.org/10.2169/internalmedicine.2891-23
Published: March 15, 2024
Relapse of Ulcerative Colitis with Immune Thrombocytopenia and Pyoderma Gangrenosum Subsequent to Receiving COVID-19 Vaccination
Kohei Suzuki, Masato Aizawa, Kana Tamazawa, Kenta Ueda, Jun Wada, Yuki Nakajima, Goro Shibukawa, Shohei Ikeda, Saburo Tsunoda, Kazutomo Togashi
DOI: https://doi.org/10.2169/internalmedicine.2969-23
Published: March 1, 2024
Autoimmune Glial Fibrillary Acidic Protein Astrocytopathy Following SARS-CoV-2 Infection
Masateru Tajiri, Ken Takasone, Minori Kodaira, Akio Kimura, Takayoshi Shimohata, Yoshiki Sekijima
DOI: https://doi.org/10.2169/internalmedicine.2751-23
Published: January 15, 2024
Before SARS-CoV-2-related Encephalitis Can Be Attributed to Anti-GFAP Antibodies, Alternative Etiologies Must Be Ruled out
Josef Finsterer
DOI: https://doi.org/10.2169/internalmedicine.3237-23
Published: April 1, 2024
Response to: Before SARS-CoV-2-related Encephalitis Can Be Attributed to Anti-GFAP Antibodies, Alternative Etiologies Must Be Ruled out
Masateru Tajiri, Ken Takasone, Minori Kodaira, Akio Kimura, Takayoshi Shimohata, Yoshiki Sekijima
DOI: https://doi.org/10.2169/internalmedicine.3323-23
Published: April 1, 2024
New-onset Immune-mediated Necrotizing Myopathy and Trigeminal Neuropathy after SARS-CoV-2 mRNA Vaccination in a Patient with Rheumatoid Arthritis and Sjögren's Syndrome
Takuma Tsuzuki Wada, Kazuhiro Yokota, Fumito Inayoshi, Sakon Sakai, Nobuhito Okumura, Mayumi Matsuda, Iichiro Osawa, Yasuto Araki, Yu Funakubo Asanuma, Yuji Akiyama, Toshihide Mimura
DOI: https://doi.org/10.2169/internalmedicine.2551-23
Published: December 15, 2023
SARS-CoV-2 Vaccination- or Infection-related Trigeminal Neuralgia/Radiculitis
Josef Finsterer
DOI: https://doi.org/10.2169/internalmedicine.3152-23
Published: March 1, 2024
An Autopsy Case of Post-COVID-19 Interstitial Lung Disease with Acute Exacerbation
Akifumi Tsuzuku, Fumihiro Asano, Masaki Katayama, Kosuke Mori, Yui Sasaki, Yutaro Kuzunishi, Mayuka Taguchi, Yuya Muto, Yasutomo Baba, Akimasa Tsuchida, Tomoya Kato, Anri Murakami, Atsunori Masuda, Takashi Yoshizane, Jun Suzuki
DOI: https://doi.org/10.2169/internalmedicine.2006-23
Published: December 1, 2023
Association of Myelin Oligodendrocyte Glycoprotein Antibody-associated Disease with Coronavirus Disease 2019 Vaccination and Infection: A Case Report of Cortical Encephalitis and Transverse Myelitis Relapse
Yohei Himeno, Takahisa Tateishi, Ken-Ichi Irie, Shuntaro Ueno, Makoto Morimitsu, Shino Mizoguchi, Tamon Koga, Takayuki Taniwaki
DOI: https://doi.org/10.2169/internalmedicine.2471-23
Published: December 1, 2023
Herpes Simplex Virus Encephalitis after Recovery from Coronavirus Disease 2019: A Rare Case Report
Mari Maezawa, Junichi Ochi, Natsushi Kubota, Tatsuhiko Kamoshida, Mayumi Fuji, Yoshikazu Tsukada
DOI: https://doi.org/10.2169/internalmedicine.1790-23
Published: December 1, 2023
Resolution of Eosinophilic Pneumonia after Coronavirus Disease 2019 without Systemic Corticosteroids
Yumiko Misaki, Yusuke Hayashi, Masahiro Shirata, Kazuhiro Terada, Akihiko Yoshizawa, Ryo Sakamoto, Kohei Ikezoe, Kiminobu Tanizawa, Tomohiro Handa, Toyohiro Hirai
DOI: https://doi.org/10.2169/internalmedicine.1648-23
Published: November 1, 2023
Successful Management of Critical Acute Respiratory Distress Syndrome following COVID-19 through Extracorporeal Membrane Oxygenation in a Patient with Concurrent Nephrotic Syndrome Relapse
Masahiro Muto, Yu Sasaki, Toshiki Kano, Yusuke Fukao, Reina Hosoya, Tomohisa Nomura, Manabu Sugita, Hiroaki Io, Yusuke Suzuki
DOI: https://doi.org/10.2169/internalmedicine.2293-23
Published: November 1, 2023
Early-onset Cervical Myelitis after COVID-19 Vaccination
Ryuichiro Hayashi, Shigeki Yamaguchi
DOI: https://doi.org/10.2169/internalmedicine.2339-23
Published: October 15, 2023
Nonepisodic Angioedema with Eosinophilia Following Receipt of the BNT162b2 mRNA COVID-19 Vaccine
Tamaki Koda, Bunki Natsumoto, Hirofumi Shoda, Keishi Fujio
DOI: https://doi.org/10.2169/internalmedicine.1788-23
Published: October 15, 2023
Multisystem Inflammatory Syndrome in an Adult on Hemodialysis with Markedly Elevated Procalcitonin and Ferritin Levels
Shuichi Asano, Tomofumi Shibata, Yohei Tsunoda, Azusa Ishii, Takafumi Kayukawa, Masahiro Kobayashi, Masami Orinaka, Shoko Miyamatsu, Yoshio Ryuge, Kimihiro Kato
DOI: https://doi.org/10.2169/internalmedicine.1832-23
Published: September 1, 2023
Successful Use of Granulocyte and Monocyte Adsorptive Apheresis in a Patient with Post-COVID-19 Multisystem Inflammatory Syndrome in Adults
Shuzo Kaneko, Tsuyoshi Zen, Susumu Banjoya, Toshiaki Nuki, Ainori Hoshimoto, Makiko Harano, Sou Hagiwara, Eri Imai, Yusuke Tsukamoto
DOI: https://doi.org/10.2169/internalmedicine.1728-23
Published: September 1, 2023
Distal Chronic Inflammatory Demyelinating Polyneuropathy Following COVID-19 Vaccination in a Patient with Solitary Plasmacytoma: A Case Report and Literature Review
Takafumi Kubota, Tomomi Shijo, Kensho Ikeda, Yoshihiko Mitobe, Shu Umezawa, Tatsuro Misu, Takafumi Hasegawa, Masashi Aoki
DOI: https://doi.org/10.2169/internalmedicine.1365-22
Published: August 15, 2023
Acute Interstitial Nephritis with Glomerular Capillary IgA Deposition Following SARS-CoV-2 mRNA Vaccination
Erika Hishida, Yuko Ono, Kazuho Oe, Toshimi Imai, Hiromichi Yoshizawa, Takeo Nakaya, Hirotoshi Kawata, Tetsu Akimoto, Osamu Saito, Daisuke Nagata
DOI: https://doi.org/10.2169/internalmedicine.1631-23
Published: August 15, 2023
Magnetic Resonance Imaging-negative Acute Inflammatory Myelopathy following Severe Acute Respiratory Syndrome Coronavirus 2 Infection
Kaori Nagao, Masato Kadoya, Yukie Shimizu, Nami Murahara, Hiroko Fujii, Chizuko Takechi, Shigeaki Aono
DOI: https://doi.org/10.2169/internalmedicine.1344-22
Published: August 1, 2023
Autoimmune Pulmonary Alveolar Proteinosis That Improved after a COVID-19 Episode
Atsushi Yanagisawa, Takayuki Takimoto, Ryota Shintani, Takehiko Kobayashi, Masaki Hirose, Toru Arai, Yoshikazu Inoue
DOI: https://doi.org/10.2169/internalmedicine.1592-23
Published: August 1, 2023
Exacerbations of Idiopathic Systemic Capillary Leak Syndrome following BNT162b2 mRNA COVID-19 Vaccine (Pfizer-BioNTech)
Yutaro Akiyama, Takeshi Inagaki, Shinichiro Morioka, Eiji Kusano, Norio Ohmagari
DOI: https://doi.org/10.2169/internalmedicine.1682-23
Published: July 1, 2023
Adult-onset Leigh Syndrome with a m.9176T>C Mutation Manifested As Reversible Cerebral Vasoconstriction Syndrome
Ayane Ohyama-Tamagake, Kimihiko Kaneko, Ryo Itami, Masatsugu Nakano, Yasuhiro Namioka, Rumiko Izumi, Haruka Sato, Hideaki Suzuki, Atsuhito Takeda, Yasushi Okazaki, Yukiko Yatsuka, Takaaki Abe, Kei Murayama, Naoto Sugeno, Tatsuro Misu, Masashi Aoki
DOI: https://doi.org/10.2169/internalmedicine.0773-22
Published: July 1, 2023
Related Article / Letter
Reversible Vasoconstriction Syndrome Is a Complication of SARS-CoV-2 Infection/Vaccination Rather than That of Leigh Syndrome
Josef Finsterer, Fulvio A Scorza
DOI: https://doi.org/10.2169/internalmedicine.1559-23
Published: July 15, 2023
Related Article / Letter
Reply to the Letter "Reversible Vasoconstriction Syndrome Is a Complication of SARS-CoV-2 Infection/Vaccination Rather than That of Leigh Syndrome"
Ayane Ohyama-Tamagake, Kimihiko Kaneko, Ryo Itami, Masatsugu Nakano, Yasuhiro Namioka, Rumiko Izumi, Haruka Sato, Hideaki Suzuki, Atsuhito Takeda, Yukiko Yatsuka, Yasushi Okazaki, Takaaki Abe, Kei Murayama, Naoto Sugeno, Tatsuro Misu, Masashi Aoki
DOI: https://doi.org/10.2169/internalmedicine.1962-23
Published: July 15, 2023
Immunoglobulin G4-related Hepatopathy after COVID-19 Vaccination
Masahiro Kuno, Naoki Sawa, Hiroki Mizuno, Yuki Oba, Daisuke Ikuma, Akinari Sekine, Masayuki Yamanouchi, Eiko Hasegawa, Tatsuya Suwabe, Satoshi Saito, Kei Kono, Keiichi Kinowaki, Kenji Notohara, Yoshifumi Ubara
DOI: https://doi.org/10.2169/internalmedicine.1634-23
Published: July 15, 2023
Combined REGN-COV2 Antibody Therapy Immediately Prevented a Patient with Refractory Type 1 Autoimmune Pancreatitis from Contracting SARS-CoV-2 during the Sixth Wave in Japan
Chihiro Katsuso, Kensuke Kubota, Katsushi Tanaka, Yusuke kurita, Atsushi Nakajima
DOI: https://doi.org/10.2169/internalmedicine.1421-22
Published: June 15, 2023
Severe Hepatitis-associated Aplastic Anemia Following COVID-19 mRNA Vaccination
Michio Yamamoto, Dai Keino, Shinichiro Sumii, Tomoko Yokosuka, Hiroaki Goto, Ayano Inui, Tsuyoshi Sogo, Makio Kawakami, Mio Tanaka, Masakatsu Yanagimachi
DOI: https://doi.org/10.2169/internalmedicine.1308-22
Published: June 15, 2023
Anti-myelin Oligodendrocyte Glycoprotein Antibody-positive Myelitis after Coronavirus Disease 2019
Kenji Uchino, Kaima Soga, Kensuke Shinohara, Takeshi Imai, Iori Motohashi, Hirohisa Okuma, Yoshihisa Yamano
DOI: https://doi.org/10.2169/internalmedicine.0394-22
Published: May 15, 2023
IgG4-related Disease Emerging after COVID-19 mRNA Vaccination
Satsuki Aochi, Masaaki Uehara, Motohisa Yamamoto
DOI: https://doi.org/10.2169/internalmedicine.1125-22
Published: May 15, 2023
Related Article / Editorial
COVID-19 Vaccination and the Development of Autoimmune Diseases
Ryusuke Yoshimi, Hideaki Nakajima
DOI: https://doi.org/10.2169/internalmedicine.1490-22
Published: May 15, 2023
COVID-19 Pneumonia Followed by Anti-signal Recognition Particle Antibody-positive Fibrosing Interstitial Lung Disease
Tomoya Tateishi, Sho Shimada, Takashi Yamana, Yuki Iijima, Rie Sakakibara, Takahiro Mitsumura, Sho Shibata, Takayuki Honda, Tsuyoshi Shirai, Tsukasa Okamoto, Meiyo Tamaoka, Tsuneo Sasai, Yasunari Miyazaki
DOI: https://doi.org/10.2169/internalmedicine.8877-21
Published: May 1, 2023
Syncope after COVID-19 Vaccination in a Young Man with Unmasking Brugada Syndrome
Takafumi Okuyama, Tomoyuki Kabutoya, Yuki Gonda, Kana Kubota Kashihara, Yasushi Imai, Yuji Morisawa, Kazuomi Kario
DOI: https://doi.org/10.2169/internalmedicine.1250-22
Published: April 15, 2023
Allergy to Omalizumab: Lessons from a Reaction to the Coronavirus 2019 Vaccine
Takeshi Matsumoto, Yumiko Sakurai, Takahiro Fujiki, Yusuke Kusakabe, Emi Nakayama, Ayaka Tanaka, Naoki Yamamoto, Kensaku Aihara, Shinpachi Yamaoka, Michiaki Mishima
DOI: https://doi.org/10.2169/internalmedicine.1169-22
Published: April 15, 2023
Anti-glomerular Basement Membrane Disease Concomitant with MPO-ANCA Positivity Concurrent with High Serum Levels of Interleukin-26 Following Coronavirus Disease 2019 Vaccination
Seiji Kobayashi, Kazunori Fugo, Ryo Hatano, Kazuto Yamazaki, Chikao Morimoto, Hiroyuki Terawaki
DOI: https://doi.org/10.2169/internalmedicine.1027-22
Published: April 1, 2023
Colitis with Hypereosinophilia following the Second Dose of the BNT162b2 mRNA COVID-19 Vaccine: A Case Report with a Literature Review
Tsuyoshi Doman, Hiroaki Saito, Yukari Tanaka, Dai Hirasawa, Mareyuki Endo, Daichi Togo, Tomoki Matsuda
DOI: https://doi.org/10.2169/internalmedicine.0518-22
Published: March 15, 2023
Relapsing Anti-MOG Antibody-associated Disease following COVID-19 Vaccination: A Rare Case Report and Review of the Literature
Hiroto Nakano, Kazuyoshi Yamaguchi, Naoyuki Hama, Yasuko Matsumoto, Moeko Shinohara, Hisashi Ide
DOI: https://doi.org/10.2169/internalmedicine.0504-22
Published: March 15, 2023
The Effect of Acotiamide on Nausea as a Symptom of Chronic Nausea and Vomiting Syndrome after Coronavirus Disease 2019
Toshihiko Kakiuchi, Masato Yoshiura
DOI: https://doi.org/10.2169/internalmedicine.1085-22
Published: March 1, 2023
Granulomatosis with Polyangiitis following COVID-19 in an Adolescent
Yume Nakamura, Fumihiko Okumura, Mayumi Nihei, Kei Chubachi, Hiroaki Sakamoto, Yoshiko Ishioka, Tomonori Makiguchi, Hisashi Tanaka, Kageaki Taima, Nobuhisa Yajima, Akira Kurose, Sadatomo Tasaka
DOI: https://doi.org/10.2169/internalmedicine.1109-22
Published: February 15, 2023
Two Cases of Familial Mediterranean Fever Involving MEFV Variants: The Importance of Differentiating the Diagnosis from COVID-19
Tomohiro Nakayama, Yutaka Kozu
DOI: https://doi.org/10.2169/internalmedicine.0414-22
Published: February 15, 2023
Fulminant Myocarditis and Acute Appendicitis after COVID-19 Vaccination
Hiroaki Kawano, Nobu Yamamoto, Hirokazu Kurohama, Shinji Okano, Masaya Kurobe, Tomohiro Honda, Ryohei Akashi, Tsuyoshi Yonekura, Satoshi Ikeda, Koichi Izumikawa, Koji Maemura
DOI: https://doi.org/10.2169/internalmedicine.0680-22
Published: February 1, 2023
New-onset Adult-onset Still's Disease Following COVID-19 Vaccination: Three Case Reports and a Literature Review
Mayumi Matsuda, Yu Funakubo Asanuma, Kazuhiro Yokota, Sakon Sakai, Hiroaki Yazawa, Takashi Maruyama, Takuma Tsuzuki Wada, Yasuto Araki, Toshihide Mimura
DOI: https://doi.org/10.2169/internalmedicine.0590-22
Published: January 15, 2023
Possible Autoimmune Encephalitis Associated with the Severe Acute Respiratory Syndrome Coronavirus 2 Omicron Variant Successfully Treated with Steroids
Shinei Kato, Nobuaki Yoshikura, Akio Kimura, Takayoshi Shimohata
DOI: https://doi.org/10.2169/internalmedicine.0371-22
Published: December 15, 2022
Persistent SARS-CoV-2 Infection in a Patient with Nephrotic Syndrome under Rituximab Therapy: Successful Treatment with a Combination of Remdesivir and Monoclonal Antibodies
kihiro Shimizu, Izumi Shirai, Kyohei Ogawa, Akane Miura, Kotaro Haruhara, Kentaro Oshiro, Akihiko Hamaguchi, Shinya Yokote, Masahiro Okabe, Hiroyuki Ueda, Nobuo Tsuboi, Masato Ikeda, Takashi Yokoo
DOI: https://doi.org/10.2169/internalmedicine.0241-22
Published: December 15, 2022
Infective Endocarditis Revealed after Resolution of COVID-19 Infection
Tomohisa Sakata, Kenji Harada, Yutaka Aoyama, Shunsuke Saito, Keisuke Narita, Kazuomi Kario
DOI: https://doi.org/10.2169/internalmedicine.0307-22
Published: December 1, 2022
Anti-signal Recognition Particle Antibody-positive Immune-mediated Myopathy after mRNA-1273 SARS-CoV-2 Vaccination
Masanobu Tanemoto, Ryosuke Oda, Yuichiro Toyama, Hirohiko Shizukawa, Kazuki Yokokawa, Taro Saito, Syuuichirou Suzuki, Akihiro Matsumura, Shin Hisahara
DOI: https://doi.org/10.2169/internalmedicine.0404-22
Published: December 1, 2022
Medium-vessel Vasculitis Presenting with Myalgia Following COVID-19 Moderna Vaccination
Shin-ichiro Ohmura, Yusuke Ohkubo, Ryuhei Ishihara, Yoshiro Otsuki, Toshiaki Miyamoto
DOI: https://doi.org/10.2169/internalmedicine.0293-22
Published: November 15, 2022
Favorable Outcome Following Sotrovimab Monoclonal Antibody in a Patient with Prolonged SARS-CoV-2 Omicron Infection with HIV/AIDS
Eisuke Adachi, Makoto Saito, Michiko Koga, Takeya Tsutsumi, Hiroshi Yotsuyanagi
DOI: https://doi.org/10.2169/internalmedicine.0485-22
Published: November 15, 2022
New-onset Seropositive Rheumatoid Arthritis Following COVID-19 Vaccination in a Patient with Seronegative Status
Haruka Yonezawa, Shin-ichiro Ohmura, Yusuke Ohkubo, Toshiaki Miyamoto
DOI: https://doi.org/10.2169/internalmedicine.0257-22
Published: November 15, 2022
An Autopsy Report of a Case with Cerebral Infarction Complicated by Coronavirus Disease 2019 Infection
Ryoji Goto, Haruka Kawakami, Yurino Horiuchi, Ayaka Chikada, Tsutomu Yasuda, Tetsuya Suzuki, Yusuke Miyazato, Masahiro Ishikane, Yuya Kishino, Hideki Miyazaki, Toru Igari, Harutaka Katano, Tadaki Suzuki, Shigeo Murayama, Noritoshi Arai
DOI: https://doi.org/10.2169/internalmedicine.9726-22
Published: November 15, 2022
A Novel Development of Sarcoidosis Following COVID-19 Vaccination and a Literature Review
Tadahisa Numakura, Koji Murakami, Tsutomu Tamada, Chiaki Yamaguchi, Chihiro Inoue, Shinya Ohkouchi, Naoki Tode, Hirohito Sano, Hiroyuki Aizawa, Kei Sato, Ayumi Mitsune, Hajime Kurosawa, Toru Nakazawa, Hisatoshi Sugiura
DOI: https://doi.org/10.2169/internalmedicine.0104-22
Published: October 15, 2022
Loss of Taste as an Initial Symptom of a "Facial Diplegia and Paresthesia" Variant of Guillain-Barré Syndrome
Akiyuki Hiraga, Mayumi Muto, Satoshi Kuwabara
DOI: https://doi.org/10.2169/internalmedicine.9781-22
Published: October 1, 2022
Antineutrophil Cytoplasmic Antibody-associated Vasculitis after COVID-19 Vaccination with Pfizer-BioNTech
Minami Suzuki, Yuta Sekiguchi, Masato Sasaki, Shunsuke Inaba, Sakino Oyama, Yuichi Inoue, Masahiro Warabi, Kenichi Ohashi, Seiji Inoshita
DOI: https://doi.org/10.2169/internalmedicine.9807-22
Published: October 1, 2022
Ischemic Stroke Due to Heparin-induced Thrombocytopenia during Severe COVID-19 Infection
Yasutaka Murakami, Shuhei Okazaki, Makoto Yamamoto, Rei Sakurai, Jyunki Jinno, Tatsuhiko Ozono, Kensuke Ikenaka, Yasufumi Gon, Kenichi Todo, Tsutomu Sasaki, Haruhiko Hirata, Akinori Uchiyama, Hideki Mochizuki
DOI: https://doi.org/10.2169/internalmedicine.9531-22
Published: September 15, 2022
Course of Cardiac Magnetic Resonance Imaging Findings in Acute Myocarditis after COVID-19 mRNA Vaccination
Hirotaka Kawauchi, Yuya Mitsuhashi, Shin Nakamura, Risa Ogawa, Tomonori Miyabe, Ken Kato, Hiroyuki Tanaka
DOI: https://doi.org/10.2169/internalmedicine.9797-22
Published: September 1, 2022
Multisystem Inflammatory Syndrome in Adults Accompanied with Kikuchi-Fujimoto Disease
Eriko Kashihara, Kosuke Doi, Kohei Fujita
DOI: https://doi.org/10.2169/internalmedicine.9384-22
Published: August 15, 2022
Prolonged COVID-19 in an Immunocompromised Patient Treated with Obinutuzumab and Bendamustine for Follicular Lymphoma
Yayoi Ueda, Shoji Asakura, Sae Wada, Takashi Saito, Tomofumi Yano
DOI: https://doi.org/10.2169/internalmedicine.9136-21
Published: August 15, 2022
Delayed Acute Perimyocarditis and Bilateral Facial Nerve Palsy in a Patient with COVID-19
Kazuki Matsumura, Hiroaki Kawano, Masaya Kurobe, Ryohei Akashi, Tsuyoshi Yoshimuta, Satoshi Ikeda, Nozomi Ueki, Masahiro Nakashima, Koji Maemura
DOI: https://doi.org/10.2169/internalmedicine.9752-22
Published: August 1, 2022
Fulminant Myocarditis 24 Days after Coronavirus Disease Messenger Ribonucleic Acid Vaccination
Hiroaki Kawano, Tetsufumi Motokawa, Hirokazu Kurohama, Shinji Okano, Ryohei Akashi, Tsuyoshi Yonekura, Satoshi Ikeda, Koichi Izumikawa, Koji Maemura
DOI: https://doi.org/10.2169/internalmedicine.9800-22
Published: August 1, 2022
Metformin-associated Lactic Acidosis with Hypoglycemia during the COVID-19 Pandemic
Kana Takayama, Yoshinari Obata, Yumiko Maruo, Hiroki Yamaguchi, Motohiro Kosugi, Yoko Irie, Yoji Hazama, Tetsuyuki Yasuda
DOI: https://doi.org/10.2169/internalmedicine.9179-21
Published: August 1, 2022
Successful Elimination of SARS-CoV-2 Following Vaccination with BNT162b2 after Prolonged Viral Infection in an Immunocompromised Lymphoma Patient
Masao Hagihara, Yui Imai, Tomoyuki Uchida, Shin Ohara, Morihiro Inoue, Tomiyuki Sugi, Keiko Mitamura
DOI: https://doi.org/10.2169/internalmedicine.9513-22
Published: July 15, 2022
Delayed Vasovagal Reaction with Reflex Syncope Following COVID-19 Vaccination
Bonpei Takase, Katsumi Hayashi, Satoko Takei, Tetsuya Hisada, Nobuyuki Masaki, Masayoshi Nagata
DOI: https://doi.org/10.2169/internalmedicine.9318-21
Published: July 15, 2022
Successful Treatment of SARS-CoV-2 Vaccination-related Activation of Rheumatoid Arthritis with Positive Findings for Epstein-Barr Virus
Hideki Nakamura, Yosuke Nagasawa, Hitomi Kobayashi, Masako Tsukamoto, Tadateru Takayama, Noboru Kitamura
DOI: https://doi.org/10.2169/internalmedicine.9433-22
Published: July 1, 2022
Successful Treatment of Immune Thrombocytopenic Purpura with Intracranial Hemorrhaging and Duodenal Bleeding Following SARS-CoV-2 Vaccination
Yuta Baba, Hirotaka Sakai, Nobuyuki Kabasawa, Hiroshi Harada
DOI: https://doi.org/10.2169/internalmedicine.9199-21
Published: June 15, 2022
Retroperitoneal Hemorrhage in Patients with COVID-19 Undergoing Hemodialysis: Three Case Reports
Hideaki Oka, Yoshito Homma, Yuki Nishino, Koichiro Suemori, Norio Sato, Yuko Sakurai, Mizuki Sekimoto, Shota Ando, Saki Iwamoto, Takaki Iwamoto, Mika Kondo, Taro Kamimura, Toshiaki Nakano, Takanari Kitazono
DOI: https://doi.org/10.2169/internalmedicine.8976-21
Published: June 15, 2022
Severe Anemia Due to Cold Agglutinin Syndrome in a COVID-19 Patient with IgM Monoclonal Gammopathy of Undetermined Significance Successfully Treated with Corticosteroids
Yutaka Tsukamoto, Masataka Umeda, Yuko Muto, Takashi Sugimoto, Momoko Yamauchi, Koji Ando, Koya Ariyoshi
DOI: https://doi.org/10.2169/internalmedicine.8647-21
Published: June 1, 2022
The Immediate Onset of Isolated and Unilateral Abducens Nerve Palsy Associated with COVID-19 Infection: A Case Report and Literature Review
Takafumi Kubota, Naoto Sugeno, Hirohito Sano, Koji Murakami, Kensuke Ikeda, Tatsuro Misu, Masashi Aoki
DOI: https://doi.org/10.2169/internalmedicine.9308-22
Published: June 1, 2022
Polymyalgia Rheumatica Following COVID-19 Vaccination
Akira Yokote, Shinsuke Fujioka, Nobutaka Takahashi, Takayasu Mishima, Yoshio Tsuboi
DOI: https://doi.org/10.2169/internalmedicine.8934-21
Published: June 1, 2022
Sensory Ataxic Guillain-Barré Syndrome with Dysgeusia after mRNA COVID-19 Vaccination
Shunsuke Ogata, Yoshito Ishii, Keiichiro Asano, Erena Kobayashi, Shun Kubota, Keita Takahashi, Yosuke Miyaji, Yuichi Higashiyama, Hideto Joki, Hiroshi Doi, Michiaki Koga, Hideyuki Takeuchi, Fumiaki Tanaka
DOI: https://doi.org/10.2169/internalmedicine.8967-21
Published: June 1, 2022
Severe Immune Thrombocytopenia after COVID-19 Vaccination: Two Case Reports and a Literature Review
Takuto Shonai, Fumihiko Kimura, Junichi Watanabe
DOI: https://doi.org/10.2169/internalmedicine.9177-21
Published: May 15, 2022
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Immune Thrombocytopenia Following COVID-19 Vaccination
Sangeetha Isaac, Mohammed Afraz Pasha, Udit Yadav
DOI: https://doi.org/10.2169/internalmedicine.0372-22
Published: September 15, 2022
Acute Meningoencephalitis after COVID-19 Vaccination in an Adult Patient with Rheumatoid Vasculitis
Joe Senda, Ryosei Ashida, Kyoko Sugawara, Katsuhiro Kawaguchi
DOI: https://doi.org/10.2169/internalmedicine.8815-21
Published: May 15, 2022
Graves' Disease after Administration of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Vaccine in a Type 1 Diabetes Patient
Mayu Sakai, Ken Takao, Takehiro Kato, Kodai Ito, Sodai Kubota, Tokuyuki Hirose, Yanyan Liu, Masami Mizuno, Takuo Hirota, Tetsuya Suwa, Yukio Horikawa, Daisuke Yabe
DOI: https://doi.org/10.2169/internalmedicine.9231-21
Published: May 15, 2022
Delayed-onset Organizing Pneumonia Emerging after Recovery from Coronavirus Disease 2019: A Report of Three Cases Diagnosed Using Transbronchial Cryobiopsy and a Review of the Literature
Sho Nakakubo, Keisuke Kamada, Yu Yamashita, Junichi Nakamura, Munehiro Matsumoto, Hiroshi Horii, Kazuki Sato, Daisuke Morinaga, Masaru Suzuki, Nanase Okazaki, Emi Takakuwa, Yoshihiro Matsuno, Satoshi Konno
DOI: https://doi.org/10.2169/internalmedicine.9016-21
Published: May 1, 2022
Acute Myocarditis in a Patient Following mRNA-1273 SARS-CoV-2 Vaccination
Toshinaru Kawakami, Kazuyuki Yahagi, Masahiro Sekiguchi, Taiki Ishizawa, Hideaki Nonaka, Naoto Setoguchi, Yusuke Watanabe, Masaaki Nakase, Yu Horiuchi, Masahiko Asami, Hitomi Yuzawa, Kota Komiyama, Jun Tanaka, Jiro Aoki, Kengo Tanabe
DOI: https://doi.org/10.2169/internalmedicine.9000-21
Published: May 1, 2022
New-onset Type 1 Diabetes after COVID-19 mRNA Vaccination
Masahiro Yano, Tomoaki Morioka, Yuka Natsuki, Keyaki Sasaki, Yoshinori Kakutani, Akinobu Ochi, Yuko Yamazaki, Tetsuo Shoji, Masanori Emoto
DOI: https://doi.org/10.2169/internalmedicine.9004-21
Published: April 15, 2022
Severe Post-COVID-19 Organizing Pneumonia during Cancer Immunochemotherapy
Asako Kitahara, Akinori Ebihara, Shohei Obayashi, Yukihiro Horio, Yoshitaka Ono, Tomohiro Yoshikawa, Naoki Okada, Jun Tanaka, Hiroto Takiguchi, Naoki Hayama, Yoko Ito, Tsuyoshi Oguma, Ichiro Kuwahira, Koichiro Asano
DOI: https://doi.org/10.2169/internalmedicine.8928-21
Published: April 15, 2022
SARS-CoV-2-related Myelin Oligodendrocyte Glycoprotein Antibody-associated Disease: A Case Report and Literature Review
Toshihiro Ide, Takeru Kawanami, Makoto Eriguchi, Hideo Hara
DOI: https://doi.org/10.2169/internalmedicine.8709-21
Published: April 15, 2022
Temporal Changes in Brain Perfusion in a Patient with Myoclonus and Ataxia Syndrome Associated with COVID-19
Kenta Osawa, Atsuhiko Sugiyama, Akiyuki Uzawa, Shigeki Hirano, Tatsuya Yamamoto, Masahiko Nezu, Nobuyuki Araki, Hiroki Kano, Satoshi Kuwabara
DOI: https://doi.org/10.2169/internalmedicine.9171-21
Published: April 1, 2022
Miller Fisher Syndrome Following Vaccination against SARS-CoV-2
Makoto Yamakawa, Keiichi Nakahara, Toshihito Nakanishi, Toshiya Nomura, Mitsuharu Ueda
DOI: https://doi.org/10.2169/internalmedicine.8851-21
Published: April 1, 2022
IgA Nephropathy with Gross Hematuria Following COVID-19 mRNA Vaccination
Yoshihito Nihei, Monami Kishi, Hitoshi Suzuki, Ayako Koizumi, Maiko Yoshida, Sho Hamaguchi, Masako Iwasaki, Hiromitsu Fukuda, Hisatsugu Takahara, Masao Kihara, Shigeki Tomita, Yusuke Suzuki
DOI: https://doi.org/10.2169/internalmedicine.8787-21
Published: April 1, 2022
Self-limited Polymyalgia Rheumatica-like Syndrome Following mRNA-1273 SARS-CoV-2 Vaccination
Shinji Izuka, Toshihiko Komai, Bunki Natsumoto, Hirofumi Shoda, Keishi Fujio
DOI: https://doi.org/10.2169/internalmedicine.8829-21
Published: March 15, 2022
Suspected Tuberculous Pleurisy and Coronavirus Disease 2019 Comorbidity
Yoh Yamaguchi, Masao Hashimoto, Susumu Saito, Tie Morita, Akinari Tsukada, Yusaku Kusaba, Takashi Katsuno, Manabu Suzuki, Jin Takasaki, Shinyu Izumi, Akihiro Matsunaga, Yukihito Ishizaka, Masayuki Hojo, Haruhito Sugiyama
DOI: https://doi.org/10.2169/internalmedicine.6920-21
Published: March 15, 2022
New-onset Polymyalgia Rheumatica Following the Administration of the Pfizer-BioNTech COVID-19 Vaccine
Atsumu Osada, Chinatsu Sakuragi, Chisashi Toya, Akiko Mitsuo
DOI: https://doi.org/10.2169/internalmedicine.8651-21
Published: March 1, 2022
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A Case of Sequential Development of Polymyalgia Rheumatica and Guillain-Barré Syndrome Following Administration of the Pfizer-BioNTech COVID-19 Vaccine
Shunsuke Yamada, Kanako Yamada, Hiroshi Nishida
DOI: https://doi.org/10.2169/internalmedicine.0319-22
Published: October 1, 2022
Refractory Longitudinally Extensive Transverse Myelitis after Severe Acute Respiratory Syndrome Coronavirus 2 Vaccination in a Japanese Man
Noriyuki Miyaue, Akira Yoshida, Yuki Yamanishi, Satoshi Tada, Rina Ando, Yuko Hosokawa, Hayato Yabe, Masahiro Nagai
DOI: https://doi.org/10.2169/internalmedicine.8747-21
Published: March 1, 2022
Tacrolimus Treatment for Post-COVID-19 Interstitial Lung Disease
Migiwa Ohgushi, Naruhiko Ogo, Toyoshi Yanagihara, Yukiko Harada, Kosuke Sumida, Ayaka Egashira, Tatsuma Asoh, Takashige Maeyama, Seiji Yoshizawa
DOI: https://doi.org/10.2169/internalmedicine.7971-21
Published: February 15, 2022
MPO-ANCA-positive Microscopic Polyangiitis Following COVID-19 Infection
Soko Kawashima, Mitsumasa Kishimoto, Tomoya Hibino, Hearyoung Lee, Yuriko Sato, Yoshinori Komagata, Shinya Kaname
DOI: https://doi.org/10.2169/internalmedicine.8615-21
Published: February 15, 2022
Myocarditis Following a COVID-19 Messenger RNA Vaccination: A Japanese Case Series
Yoshiki Murakami, Masaya Shinohara, Yosuke Oka, Ryo Wada, Ryota Noike, Hiroshi Ohara, Tadashi Fujino, Takanori Ikeda
DOI: https://doi.org/10.2169/internalmedicine.8731-21
Published: February 15, 2022
Acquired Thrombotic Thrombocytopenic Purpura Following BNT162b2 mRNA Coronavirus Disease Vaccination in a Japanese Patient
Kikuaki Yoshida, Ayaka Sakaki, Yoriko Matsuyama, Toshiki Mushino, Masanori Matsumoto, Takashi Sonoki, Shinobu Tamura
DOI: https://doi.org/10.2169/internalmedicine.8568-21
Published: February 1, 2022
Successful Use of Certolizumab Pegol for Refractory Psoriatic Arthritis Triggered by COVID-19 Infection
Shin-ichiro Ohmura, Yoichiro Homma, Shiho Hanai, Toshiaki Miyamoto
DOI: https://doi.org/10.2169/internalmedicine.8643-21
Published: February 1, 2022
Post COVID-19 Bilateral Facial Nerve Palsy
Ryoma Inui, Satoru Fujiwara, Nobuo Kohara, Michi Kawamoto
DOI: https://doi.org/10.2169/internalmedicine.8448-21
Published: January 15, 2022
Successful Treatment with High-dose Steroids for Acute Exacerbation of Idiopathic Pulmonary Fibrosis Triggered by COVID-19
Norihito Omote, Yoshihiro Kanemitsu, Takahiro Inoue, Toshiyuki Yonezawa, Takuji Ichihashi, Yuichiro Shindo, Koji Sakamoto, Akira Ando, Atsushi Suzuki, Akio Niimi, Satoru Ito, Kazuyoshi Imaizumi, Naozumi Hashimoto
DOI: https://doi.org/10.2169/internalmedicine.8163-21
Published: January 15, 2022
Community-acquired Respiratory Virus Cases Mimic COVID-19 on Lung Computed Tomography
Daijiro Nabeya, Takeshi Kinjo, Akiko Maeda, Hiroaki Nagano, Shuhei Yokoyama, Shunichi Takakura, Soichi Shiiki, Jiro Fujita, Tomoo Kishaba
DOI: https://doi.org/10.2169/internalmedicine.7687-21
Published: January 1, 2022
COVID-19 mRNA Vaccine-induced Pneumonitis
Shinichi Matsuzaki, Hiroyuki Kamiya, Ichiro Inoshima, Yasutaka Hirasawa, Osamu Tago, Masashi Arai
DOI: https://doi.org/10.2169/internalmedicine.8310-21
Published: January 1, 2022
Discrepant Antigen-specific Antibody Responses Causing SARS-CoV-2 Persistence in a Patient Receiving B-cell-targeted Therapy with Rituximab
Teruhito Takakuwa, Yu Nakagama, Mayo Yasugi, Toshiki Maeda, Kenji Matsuo, Ayako Kiritoshi, Ryo Deguchi, Naohiro Hagawa, Wataru Shibata, Kazuhiro Oshima, Katsumi Yamamoto, Kenichiro Uchida, Tomohiro Noda, Koichi Yamada, Tetsuro Nishimura, Hiromasa Yamamoto, Yasutoshi Kido, Masayuki Hino, Hiroshi Kakeya, Yasumitsu Mizobata
DOI: https://doi.org/10.2169/internalmedicine.7884-21
Published: December 1, 2021
Successful Management of Subacute Thyroiditis Following SARS-CoV-2 Infection
Daisuke Sato, Sho Nishiguchi, Eri Tanaka
DOI: https://doi.org/10.2169/internalmedicine.7913-21
Published: November 15, 2021
A Rare Case of COVID-19 Pneumonia Concomitant with Bleeding from Acute Gastric Mucosal Lesions
Hideaki Kawabata, Katsutoshi Yamaguchi, Yuki Ueda, Ryo Shinomiya, Yuji Okazaki, Tetsuya Yamamoto, Kojiro Nakase, Masatoshi Miyata, Shigehiro Motoi, Yasuyuki Enoki, Tetsuhiro Minamikawa
DOI: https://doi.org/10.2169/internalmedicine.7803-21
Published: November 1, 2021
Spontaneous Muscle Hematoma in Japanese Patients with Severe COVID-19 Treated with Unfractionated Heparin: Two Case Reports
Yu Ito, Nobuyasu Awano, Fumiya Uchiyama, Minoru Inomata, Naoyuki Kuse, Mari Tone, Kohei Takada, Kazushi Fujimoto, Yutaka Muto, Shogo Sagisaka, Kenro Maki, Ryuta Yamashita, Akinori Harada, Jun-ichi Nishimura, Munehiro Hayashi, Takehiro Izumo
DOI: https://doi.org/10.2169/internalmedicine.7422-21
Published: November 1, 2021
Cranial Nerve Involvement and Dysautonomia in Post-COVID-19 Guillain-Barré Syndrome
Toshiyuki Kakumoto, Satoshi Kobayashi, Hayato Yuuki, Mitsuhiro Kainaga, Yuichiro Shirota, Masashi Hamada, Meiko Hashimoto Maeda, Akatsuki Kubota, Mizuho Kawai, Masaaki Saito, Hiroyuki Ishiura, Tatsushi Toda
DOI: https://doi.org/10.2169/internalmedicine.7355-21
Published: November 1, 2021
Pneumonia Due to Human Coronavirus OC43 in an Immunocompetent Adult Detected by Multiplex Polymerase Chain Reaction
Masanori Kawataki, Akihiro Ito, Tadashi Ishida
DOI: https://doi.org/10.2169/internalmedicine.7450-21
Published: November 1, 2021
SARS-CoV-2-related Progressive Brain White Matter Lesion Associated with an Increased Cerebrospinal Fluid Level of IL-6
Yuwa Oka, Akihiro Ueda, Tomokazu Nakagawa, Yujiro Kikuchi, Daiki Inoue, Satoshi Marumo, Sadayuki Matsumoto
DOI: https://doi.org/10.2169/internalmedicine.8123-21
Published: October 1, 2021
Paroxysmal Atrioventricular Block in a Relatively Young Patient with COVID-19
Masami Abe, Suguru Chiba, Sayuri Kataoka, Yoshikatsu Gima, Chikashi Nago, Sho Hatano, Toshiya Chinen, Kentaro Nakamura, Naoto Miyagi, Masakazu Nakae, Akiko Matsuzaki, Hiroki Uehara
DOI: https://doi.org/10.2169/internalmedicine.6237-20
Published: August 15, 2021
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COVID-19 and AV block: An Unusual Manifestation
Takashi Noda, Hiroshi Tada
DOI: https://doi.org/10.2169/internalmedicine.7083-21
Published: August 15, 2021
Diagnosis of Suspected Small Bowel Bleeding by Capsule Endoscopy in Patients with COVID-19
Lan Li, Liping Yang, Jun Li, Zhe Shen, Bingling Zhang
DOI: https://doi.org/10.2169/internalmedicine.7235-21
Published: August 1, 2021
A Kidney Transplant Patient Who Died of COVID-19-associated Severe Acute Respiratory Distress Syndrome
Akinari Tsukada, Manabu Suzuki, Yuya Kishino, Kento Misumi, Toru Igari, Noriko Nakajima, Yuko Sato, Tadaki Suzuki, Takashi Katsuno, Yusaku Kusaba, Yoshie Tsujimoto, Keita Sakamoto, Masao Hashimoto, Junko Terada, Jin Takasaki, Shinyu Izumi, Masayuki Hojo, Haruhito Sugiyama
DOI: https://doi.org/10.2169/internalmedicine.7089-21
Published: July 15, 2021
Radiologically Undetectable Latent Pulmonary Lymphocyte Infiltration Suggesting the Need for Early Glucocorticoid Therapy: An Autopsy Case of Rapidly Progressive COVID-19 Pneumonia with Lymphopenia
Naoki Tanomogi, Toshinori Otani, Junko Araki, Ayumi Sugitani, Shingo Itagaki, Takahiro Kiriu, Kota Shimada
DOI: https://doi.org/10.2169/internalmedicine.7234-21
Published: July 1, 2021
Drug Fever Due to Favipiravir Administration for the Treatment of a COVID-19 Patient
Junsuke Tawara, Takanori Uehara, Seiichiro Sakao, Hidetoshi Igari, Toshibumi Taniguchi, Hajime Kasai, Shin Takayanagi, Misuzu Yahaba, Ryo Shimada, Masatomi Ikusaka
DOI: https://doi.org/10.2169/internalmedicine.5813-20
Published: April 1, 2021
Hemoptysis and a Newly Formed Lung Bulla in a Case of Convalescent COVID-19 Pneumonia
Lubna Sato, Noriko Kinoshita, Takato Nakamoto, Norio Ohmagari
DOI: https://doi.org/10.2169/internalmedicine.5684-20
Published: March 1, 2021
Immediate Amelioration of Severe Respiratory Distress in Sjögren’s Syndrome with COVID-19 Treated with a Single Dose of Off-label Tocilizumab
Hiroshi Kataoka, Fumihiro Kodama, Tomoko Tomita, Makoto Kondo, Atsushi Nagasaka, Shuji Nishikawa, Masaya Mukai
DOI: https://doi.org/10.2169/internalmedicine.6010-20
Published: February 15, 2021
Four Cases of Coronavirus Disease 2019 Transferred from a Cruise Ship
Masahiro Sano, Haruka Nishioka, Jun Yamazaki, Ippei Miyamoto, Takuya Adachi
DOI: https://doi.org/10.2169/internalmedicine.4939-20
Published: February 1, 2021
Severe Coronavirus Disease 2019 that Recovered from Respiratory Failure by Treatment that Included High-dose Intravenous Immunoglobulin
Yasuhito Suzuki, Yoshinori Tanino, Takefumi Nikaido, Hiroyuki Minemura, Takashi Umeda, Mami Rikimaru, Takumi Onuma, Shotaro Naito, Yoshinori Takiguchi, Hikaru Tomita, Takaya Kawamata, Ryuichi Togawa, Yuki Sato, Manabu Uematsu, Julia Morimoto, Kadzuhiro Kitakawa, Yasuhiko Tsukada, Kiwamu Nakamura, Keiji Kanemitsu, Ken Iseki, Yoko Shibata
DOI: https://doi.org/10.2169/internalmedicine.6326-20
Published: February 1, 2021
Two Cases of Post-intubation Laryngotracheal Stenosis Occurring after Severe COVID-19
Maki Miwa, Mikio Nakajima, Richard H. Kaszynski, Syoichiro Hamada, Tomotsugu Nakano, Masamitsu Shirokawa, Hideaki Goto, Yoshihiro Yamaguchi
DOI: https://doi.org/10.2169/internalmedicine.6105-20
Published: February 1, 2021
Successful and Safe Reinstitution of Chemotherapy for Pancreatic Cancer after COVID-19
Kazumasa Nagai, Katsuya Kitamura, Yuji Hirai, Daisuke Nutahara, Hironori Nakamura, Junichi Taira, Yubu Matsue, Masakazu Abe, Miho Kikuchi, Takao Itoi
DOI: https://doi.org/10.2169/internalmedicine.6294-20
Published: January 15, 2021
Two Cases of Severe COVID-19 Pneumonia Effectively Treated with Extracorporeal Membrane Oxygenation in Addition to Favipiravir and Corticosteroid
Masahiro Shinoda, Kenichi Kamachi, Shinichiro Ota, Lynn Yoshimatsu, Ryuichi Boku, Yuto Yoshida, Takatomo Hirouchi, Kanako Shinada, Takashi Sato, Miwa Morikawa, Koki Iwata, Takashi Matsumoto, Masaharu Shinkai
DOI: https://doi.org/10.2169/internalmedicine.5475-20
Published: January 1, 2021
Evidence of the Sequential Changes of Lung Sounds in COVID-19 Pneumonia Using a Novel Wireless Stethoscope with the Telemedicine System
Akinari Noda, Takeshi Saraya, Kikuko Morita, Masaoki Saito, Teppei Shimasaki, Daisuke Kurai, Keitaro Nakamoto, Haruyuki Ishii
DOI: https://doi.org/10.2169/internalmedicine.5565-20
Published: December 15, 2020
COVID-19 Pneumonia Resembling an Acute Exacerbation of Interstitial Pneumonia
Takaaki Kitayama, Hideya Kitamura, Eri Hagiwara, Katsuyuki Higa, Hiroko Okabayashi, Tsuneyuki Oda, Tomohisa Baba, Shigeru Komatsu, Tae Iwasawa, Takashi Ogura
DOI: https://doi.org/10.2169/internalmedicine.5630-20
Published: December 15, 2020
Pneumothorax in a COVID-19 Pneumonia Patient Without Underlying Risk Factors
Takafumi Yamaya, Tomohisa Baba, Eri Hagiwara, Satoshi Ikeda, Takashi Niwa, Takaaki Kitayama, Kota Murohashi, Katsuyuki Higa, Yozo Sato, Takashi Ogura
DOI: https://doi.org/10.2169/internalmedicine.5731-20
Published: November 15, 2020
Tocilizumab-induced Leukoencephalopathy with a Reversible Clinical Course
Ryo Sasaki, Nozomi Hishikawa, Emi Nomura, Yoshio Omote, Mami Takemoto, Toru Yamashita, Noriko Hatanaka, Yasuto Higashi, Koji Abe
DOI: https://doi.org/10.2169/internalmedicine.5288-20
Published: November 15, 2020
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Implications for White Matter Vulnerability to Anti-interleukin-6 Receptor Antibody Treatment
Daisuke Kato
DOI: https://doi.org/10.2169/internalmedicine.5765-20
Published: November 15, 2020
A Favipiravir-induced Fever in a Patient with COVID-19
Takashi Kurita, Keiko Ishida, Emiri Muranaka, Hiroki Sasazawa, Haruki Mito, Yudai Yano, Ryota Hase
DOI: https://doi.org/10.2169/internalmedicine.5394-20
Published: November 15, 2020
Acute Hypertriglyceridaemia Caused by Tocilizumab in a Patient with Severe COVID-19
Hideta Nakamura, Kazuya Miyagi, Mariko Otsuki, Yuri Higure, Naoya Nishiyama, Takeshi Kinjo, Masashi Nakamatsu, Shusaku Haranaga, Masao Tateyama, Jiro Fujita
DOI: https://doi.org/10.2169/internalmedicine.5244-20
Published: November 15, 2020
Pancreatitis in a Patient with Severe Coronavirus Disease Pneumonia treated with Veno-venous Extracorporeal Membrane Oxygenation
Yutaro Kurihara, Takaaki Maruhashi, Tatsuhiko Wada, Mayuko Osada, Marina Oi, Kunihiro Yamaoka, Yasushi Asari
DOI: https://doi.org/10.2169/internalmedicine.5912-20
Published: November 15, 2020
Coronavirus Disease 2019 Complicated by Multiple Simultaneous Intracerebral Hemorrhages
Ryota Motoie, Masaya Akai, Takahiro Kitahara, Hisaji Imamura, Takeshi Tanabe, Katsuhiko Sarazawa, Seiichiro Takano, Hiroki Toda, Kazuto Komatsu
DOI: https://doi.org/10.2169/internalmedicine.5697-20
Published: October 15, 2020
Successful Recovery from COVID-19-associated Acute Respiratory Failure with Polymyxin B-immobilized Fiber Column-direct
Yusaku Kusaba, Shinyu Izumi, Jin Takasaki, Manabu Suzuki, Daisuke Katagiri, Takashi Katsuno, Shuichiro Matsumoto, Keita Sakamoto, Masao Hashimoto, Norio Ohmagari, Harutaka Katano, Tadaki Suzuki, Masayuki Hojo, Haruhito Sugiyama
DOI: https://doi.org/10.2169/internalmedicine.5413-20
Published: October 1, 2020
Acute Gouty Arthritis During Favipiravir Treatment for Coronavirus Disease 2019: A Case Report
Ryota Hase, Rika Kurata, Keiko Ishida, Takashi Kurita, Emiri Muranaka, Haruki Mito
DOI: https://doi.org/10.2169/internalmedicine.5377-20
Published: September 15, 2020
Neurological Disorders Identified during Treatment of a SARS-CoV-2 Infection
Shinichi Wada, Yoji Nagasaki, Yoko Arimizu, Masatoshi Shimo, Yuta Matsukuma, Masaki Okamoto, Shinichiro Yoshida, Ikkei Ohashi, Go Hashimoto, Takahiro Kuwashiro, Masahiro Yasaka, Yasushi Okada
DOI: https://doi.org/10.2169/internalmedicine.5447-20
Published: September 1, 2020
Coronavirus Disease-19 Pneumonia with Facial Nerve Palsy and Olfactory Disturbance
Yoshito Homma, Masashi Watanabe, Koji Inoue, Tomonori Moritaka
DOI: https://doi.org/10.2169/internalmedicine.5014-20
Published: July 15, 2020
Review Article
Pictures in Clinical Medicine
Status epilepticus with unilateral brain edema in COVID-19
Yasuhiro Aso, Teruaki Masuda, Noriyuki Kimura, Etsuro Matsubara
DOI: https://doi.org/10.2169/internalmedicine.3080-23
Advance Publication: May 2, 2024
Detection of Schizophyllum commune in SARS-CoV-2 Pneumonia
Mariko Tanabe, Yusuke Koba, Takashi Yaguchi, Mitsumasa Watanabe
DOI: https://doi.org/10.2169/internalmedicine.3018-23
Published: April 1, 2024
Honeycomb Formation as a Sequela of COVID-19 Infection
Akimasa Sekine, Tatsuya Muraoka, Yoko Onodera, Takashi Ogura
DOI: https://doi.org/10.2169/internalmedicine.1899-23
Published: August 15, 2023
COVID-19-associated Aspergillus Tracheobronchitis
Takashi Inada, Jun Kataoka
DOI: https://doi.org/10.2169/internalmedicine.1988-23
Published: August 15, 2023
Rectus Sheath Hematoma Attributable to Coronavirus Disease 2019
Kiyoshi Takemoto, Kazuaki Atagi
DOI: https://doi.org/10.2169/internalmedicine.1816-23
Published: August 1, 2023
Tracheitis Associated with COVID-19
Hiroshi Ohnishi, Yu Arakawa, Kazuki Anabuki, Akihito Yokoyama
DOI: https://doi.org/10.2169/internalmedicine.1350-22
Published: June 1, 2023
COVID-19 Vaccination-associated Thoracic Outlet Syndrome
Taku Suzuki, Ryogo Furuhata, Takuji Iwamoto
DOI: https://doi.org/10.2169/internalmedicine.0604-22
Published: January 1, 2023
Vasospastic Angina: A Cause of Post-acute COVID-19 Syndrome
Tadao Aikawa, Jiro Ogino, Noriko Oyama-Manabe, Naohiro Funayama
DOI: https://doi.org/10.2169/internalmedicine.0137-22
Published: September 1, 2022
A Case of COVID-19 Presenting with Acute Epiglottitis
Aki Yamada, Kai Yamazaki, Toshiro Sugimoto
DOI: https://doi.org/10.2169/internalmedicine.0163-22
Published: September 1, 2022
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Acute Bacterial Epiglottitis and COVID-induced Angioedema of the Larynx Are Possible Differential Diagnoses
Yuh Baba, Keiso Takahashi, Yasumasa Kato
DOI: https://doi.org/10.2169/internalmedicine.0809-22
Published: December 15, 2022
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Response to Letter to the Editor: "Acute Bacterial Epiglottitis and COVID-induced Angioedema of the Larynx Are Possible Differential Diagnoses"
Aki Yamada, Kai Yamazaki, Toshiro Sugimoto
DOI: https://doi.org/10.2169/internalmedicine.0863-22
Published: December 15, 2022
Schnitzler Syndrome after COVID-19 Vaccination
Mizuki Asako, Hitomi Matsunaga, Kazumasa Oka, Shuji Ueda
DOI: https://doi.org/10.2169/internalmedicine.9598-22
Published: August 1, 2022
Transient Large-vessel Vasculitis after COVID-19 mRNA Vaccination
Kazuaki Aoki, Shungo Yamamoto, Kentaro Tochitani
DOI: https://doi.org/10.2169/internalmedicine.9469-22
Published: July 1, 2022
Erythema Multiforme after BNT162b2 Vaccination
Sho Katayama, Mitsuhito Ota
DOI: https://doi.org/10.2169/internalmedicine.9544-22
Published: June 15, 2022
Pericarditis with Increased Vascular Permeability after COVID-19 Vaccination
Tadao Aikawa, Jiro Ogino, Nozomi Aikawa, Noriko Oyama-Manabe
DOI: https://doi.org/10.2169/internalmedicine.9407-22
Published: May 15, 2022
A Case of Suspected COVID-19 Vaccine-related Thrombophlebitis
Daisuke Ikechi, Hideki Hashimoto, Hidehiko Nakano, Kensuke Nakamura
DOI: https://doi.org/10.2169/internalmedicine.8767-21Published: May 15, 2022
Maculopapular Rash in Japanese Patients with COVID-19
Issei Seike, Hajime Kanamori, Kengo Oshima, Tetsuji Aoyagi
DOI: https://doi.org/10.2169/internalmedicine.8491-21
Published: April 1, 2022
Extensive Coronary Thrombosis in a COVID-19 Patient
Madoka Sano, Kitae Kim, Yutaka Furukawa
DOI: https://doi.org/10.2169/internalmedicine.8826-21
Published: March 15, 2022
Livedo Reticularis Associated with COVID-19
Toshinori Sahara, Kazuhisa Yokota
DOI: https://doi.org/10.2169/internalmedicine.8033-21
Published: February 1, 2022
Immune Thrombocytopenia and Cerebral Hemorrhaging Associated with COVID-19
Koken Hayashi, Hideo Wada, Katsuya Shiraki, Katsutoshi Makino
DOI: https://doi.org/10.2169/internalmedicine.7541-21
Published: November 1, 2021
Late-onset COVID-19-induced Hemophagocytic Syndrome
Eisuke Kanematsu, Takahiro Nunokawa, Naofumi Chinen, Akio Komatsu
DOI: https://doi.org/10.2169/internalmedicine.7482-21
Published: November 1, 2021
Posterior Reversible Encephalopathy Syndrome Associated with COVID-19 in a Japanese Patient
Hiroaki Yaguchi, Yasunori Mito, Fumihiro Kodama, Yasutaka Tajima
DOI: https://doi.org/10.2169/internalmedicine.7384-21
Published: September 15, 2021
Subpleural Curvilinear Shadows Associated with COVID-19
Jiro Fujita, Hideta Nakamura, Kazuya Miyagi, Masao Tateyama
DOI: https://doi.org/10.2169/internalmedicine.7183-21
Published: August 1, 2021
Post-COVID-19 Postural Orthostatic Tachycardia Syndrome
Yuki Ishibashi, Kihei Yoneyama, Tomoya Tsuchida, Yoshihiro J. Akashi
DOI: https://doi.org/10.2169/internalmedicine.7626-21
Published: July 15, 2021
Acute Pancreatitis Related to COVID-19 Infection
Koichiro Yamamoto, Kosuke Oka, Hiroyuki Sakae, Fumio Otsuka
DOI: https://doi.org/10.2169/internalmedicine.7400-21
Published: July 1, 2021
Wandering Pneumonia Mimicked by COVID-19
Yuki Yoshida, Takeshi Saraya, Masachika Fujiwara, Haruyuki Ishii
DOI: https://doi.org/10.2169/internalmedicine.6476-20
Published: February 1, 2021
Beau’s Lines and Leukonychia in a COVID-19 Patient
Satoshi Ide, Shinichiro Morioka, Makoto Inada, Norio Ohmagari
DOI: https://doi.org/10.2169/internalmedicine.6112-20
Published: December 15, 2020
Infiltrative Shadows in COVID-19: Pneumonia or Pulmonary Embolism?
Hiroyuki Nagai, Shinya Yamamoto, Makoto Saito and Eisuke Adachi
DOI: https://doi.org/10.2169/internalmedicine.5380-20
Published: October 1, 2020
Pneumonia without Respiratory Symptoms
Kazuhiro Ishikawa, Yuki Uehara, Takahiro Matsuo, Nobuyoshi Mori
DOI: https://doi.org/10.2169/internalmedicine.4639-20
Published: June 1, 2020
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