研究者詳細 - 大塚　勇輝

論文 - 大塚　勇輝

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Detection of Male Hypogonadism in Patients with Post COVID-19 Condition. 国際誌

Yukichika Yamamoto, Yuki Otsuka, Naruhiko Sunada, Kazuki Tokumasu, Yasuhiro Nakano, Hiroyuki Honda, Yasue Sakurada, Hideharu Hagiya, Yoshihisa Hanayama, Fumio Otsuka

Journal of clinical medicine 11 ( 7 ) 2022年3月

記述言語：英語掲載種別：研究論文（学術雑誌）

The pathogenesis and prognosis of post COVID-19 condition have remained unclear. We set up an outpatient clinic specializing in long COVID in February 2021 and we have been investigating post COVID-19 condition. Based on the results of our earlier study showing that "general fatigue" mimicking myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is the most common symptom in long COVID patients, a retrospective analysis was performed for 39 male patients in whom serum free testosterone (FT) levels were measured out of 61 male patients who visited our clinic. We analyzed the medical records of the patients' backgrounds, symptoms and laboratory results. Among the 39 patients, 19 patients (48.7%) met the criteria for late-onset hypogonadism (LOH; FT < 8.5 pg/mL: LOH group) and 14 patients were under 50 years of age. A weak negative correlation was found between age and serum FT level (r = -0.301, p = 0.0624). Symptoms including general fatigue, anxiety, cough and hair loss were more frequent in the LOH group than in the non-LOH group (FT ≥ 8.5 pg/mL). Among various laboratory parameters, blood hemoglobin level was slightly, but significantly, lower in the LOH group. Serum level of FT was positively correlated with the levels of blood hemoglobin and serum total protein and albumin in the total population, whereas these interrelationships were blurred in the LOH group. Collectively, the results indicate that the incidence of LOH is relatively high in male patients, even young male patients, with post COVID-19 and that serum FT measurement is useful for revealing occult LOH status in patients with long COVID.

DOI： 10.3390/jcm11071955

Idiopathic multicentric Castleman disease with positive antiphospholipid antibody: atypical and undiagnosed autoimmune disease?

Yoshito Nishimura, Asami Nishikori, Haruki Sawada, Torrey Czech, Yuki Otsuka, Midori Filiz Nishimura, Hiroki Mizuno, Naoki Sawa, Shuji Momose, Kumiko Ohsawa, Fumio Otsuka, Yasuharu Sato

Journal of clinical and experimental hematopathology : JCEH 2022年3月

記述言語：英語掲載種別：研究論文（学術雑誌）

Idiopathic multicentric Castleman disease (iMCD) is a systemic disorder characterized by systemic inflammation and organ dysfunction associated with an increase in pro-inflammatory cytokines. Some patients with iMCD are positive for autoantibodies, although their significance and relationship with specific associated autoimmune diseases are unclear. This study retrospectively analyzed the clinicopathological features of iMCD patients focusing on autoantibodies. Among 63 iMCD patients in our database, 19 were positive for at least one autoantibody. Among the 19, we identified five with plasma cell type (PC)-iMCD lymph node histopathology and positive anti-phospholipid antibodies. These patients were likely to have thrombocytopenia, anasarca, fever, reticulin fibrosis or renal insufficiency, organomegaly (TAFRO) symptoms, and thrombotic events. The present study suggests that patients with undiagnosed or atypical autoimmune diseases, including anti-phospholipid syndrome (APS), were treated for iMCD. APS may present with thrombocytopenia or even multi-organ failure, which overlap with clinical presentations of iMCD. Due to differences in the treatment regimen and follow-up, recognition of the undiagnosed autoimmune disease process in those suspected of iMCD is essential. Our study highlights the importance of complete exclusion of differential diagnoses in patients with iMCD in their diagnostic workup.

DOI： 10.3960/jslrt.21038

Serial Changes of Long COVID Symptoms and Clinical Utility of Serum Antibody Titers for Evaluation of Long COVID. 国際誌

Yasue Sakurada, Naruhiko Sunada, Hiroyuki Honda, Kazuki Tokumasu, Yuki Otsuka, Yasuhiro Nakano, Yoshihisa Hanayama, Masanori Furukawa, Hideharu Hagiya, Fumio Otsuka

Journal of clinical medicine 11 ( 5 ) 2022年2月

記述言語：英語掲載種別：研究論文（学術雑誌）

BACKGROUND: Various symptoms persist even after the acute symptoms in about one third of patients with COVID-19. In February 2021, we established an outpatient clinic in a university hospital for patients with long COVID and started medical treatment for sequelae that persisted one month or more after infection. METHODS: To determine the key factors that affect the onset and clinical course of sequelae, a retrospective analysis was performed at Okayama University Hospital (Japan) between February and July 2021. We focused on changes in the numbers of symptoms and the background of the patients during a three-month period from the first outpatient visit. We also examined the relationship with SARS-CoV-2 antibody titers. RESULTS: Information was obtained from medical records for 65 patients. The symptoms of sequelae were diverse, with more than 20 types. The most frequent symptoms were general malaise, dysosmia, dysgeusia, sleeplessness, and headache. These symptoms improved in about 60% of the patients after 3 months. Patients who required hospitalization and had a poor condition in the acute phase and patients who received oxygen/dexamethasone therapy had higher antibody titers at the time of consultation. Patients with antibody titers ≥200 U/mL showed significantly fewer improvements in long COVID symptoms in 1 month, but they showed improvements at 3 months after the first visit. CONCLUSION: Long COVID symptoms were improved at 3 months after the initial visit in more than half of the patients. Serum antibody titers were higher in patients who experienced a severe acute phase, but the serum antibody titers did not seem to be directly related to the long-term persistence of long COVID symptoms.

DOI： 10.3390/jcm11051309

Recovery From Alopecia After COVID-19. 国際誌

Yuki Otsuka, Yasuhiro Nakano, Hideharu Hagiya, Kazuki Tokumasu, Fumio Otsuka

Cureus 14 ( 1 ) e21160 2022年1月

記述言語：英語

Herein, we report a remarkable case of post-coronavirus disease 2019 (COVID-19) diffuse alopecia that gradually improved and recovered, and the hair volume returned approximately to the pre-infection level, seven months after the patient's first diagnosis of COVID-19. Approximately 20% of patients with COVID-19 develop alopecia a few months after the acute infection phase. Telogen effluvium is the major type of COVID-19 sequela secondary to physical or psychological distress. It is reversible and is expected to improve without any treatment, and it can be addressed by explaining to the patients their conditions, sharing medical information, and eliminating psychophysical stress by managing systemic complications.

DOI： 10.7759/cureus.21160

Interest in Infectious Diseases specialty among Japanese medical students amidst the COVID-19 pandemic: A web-based, cross-sectional study. 国際誌

Hideharu Hagiya, Yuki Otsuka, Kazuki Tokumasu, Hiroyuki Honda, Yoshito Nishimura, Mikako Obika, Fumio Otsuka

PloS one 17 ( 4 ) e0267587 2022年

記述言語：英語掲載種別：研究論文（学術雑誌）

INTRODUCTION: The emergence of the novel coronavirus disease of 2019 (COVID-19) has led to huge disruptions in the medical field and society. The significance of training and education for experts has been increasingly acknowledged in Japan, where the number of infectious disease (ID) specialists is reportedly insufficient. In this paper, we report the results of a web-based survey that was conducted to reveal the ways in which the COVID-19 pandemic has influenced medical students' awareness of ID specialists and future career choices. METHOD: This cross-sectional descriptive study was conducted in March 2021 and targeted 717 medical students belonging to Medical School of Okayama University, Japan. The questionnaire consisted of four questions meant to assess students' knowledge and future intentions of becoming ID specialists. RESULTS: We obtained 328 eligible questionnaires (response rate: 45.7%). Of 227 (69.2%) students who were aware of ID specialists, 99 (43.6%) answered that they came to know about them only after the pandemic, 12 (3.7%) answered that their interest in being an ID specialist arose during the pandemic, while 36 (11.0%) responded that they would rather not become ID specialists. At the time of the survey, 5 students (1.5%) were aiming to become ID specialists. CONCLUSION: We observed a very low rate of interest to be an ID specialist among medical students. The experience of the pandemic does not seem to have influenced Japanese medical students to choose ID as a specialty for their careers. Continuous efforts to increase the number of ID specialists are necessary in Japan as a countermeasure against the coming pandemic.

DOI： 10.1371/journal.pone.0267587

【医学・医療者教育学を学ぶ我が国のプログラム】Residents-as-Teachersについて

橋本忠幸, 西城卓也, 小杉俊介, 金澤剛志, 長谷川雄一, 木戸敏喜, 大塚勇輝, 菊川誠

医学教育 52 ( 6 ) 525 - 531 2021年12月

記述言語：日本語出版者・発行元：(一社)日本医学教育学会

研修医や専攻医は臨床現場において、実は指導医的な役割が多く、その重要性を指摘されている。その背景として、Near-Peerとして学習者との近接しており、その近接性には2つの側面がある。わからないことを共有できる「認知的近接性」と、長い間時間と空間を共有できる「空間的近接性」である。研修医や専攻医のための指導スキル向上を目的としたプログラム、Residents-as-Teachersプログラムは世界中で展開されているが、日本ではまだ少ない。我々は研修医や専攻医にとって必要な指導スキルが何かを研究で明らかにし、その結果を元に1年間のフェローシップを運営している。規模は徐々に拡大し、2020年にCOVID-19の影響でオンライン化したが、課題量・参加意欲・技術的課題の観点からフェローシップを再構成し、オンラインでの実施においても高い満足度を得た。(著者抄録)

【COVID-19-その診断と治療】倦怠感

大塚勇輝, 徳増一樹, 本多寛之, 萩谷英大, 大塚文男

カレントテラピー 39 ( 11 ) 1034 - 1039 2021年11月

記述言語：日本語出版者・発行元：(株)ライフメディコム

新型コロナウイルス感染症(COVID-19)が最初に報告されてからおよそ1年半が経過したが、いまだ収束の兆しの見えない世界的流行のなかで「Long-COVID」ないし「post-acute sequelae of COVID-19(PASC)」と定義され、一般には「コロナ後遺症」として知られる、急性期以降に残存する症状に悩まされる患者が多く存在している。そのなかでも「倦怠感」は、最も多い症状として報告され、COVID-19罹患後に4割程度の患者が自覚すると言われている。倦怠感は視認できず検査での客観的評価も難しい症状である一方で、さまざまな要因が複雑に絡みあって生じており病態メカニズムも未解明なところが多く、診療に難渋する。われわれは2021年2月にLong-COVID/PASCを専門的に診療する「コロナ・アフターケア(COVID-19 aftercare:CAC)外来」を大学病院内にいち早く設立し、倦怠感などの症状に悩む患者の診療と研究・教育に取り組んできた。本稿ではそうしたわれわれの診療経験も踏まえ、診断や治療を行ううえでの対面診療の必要性や総合診療的アプローチの重要性についても触れながら、Long-COVID/PASCにおける倦怠感について概説する。(著者抄録)

Subcutaneous edema as rare complication of abdominal paracentesis. 国際誌

Yuki Otsuka, Hirokazu Nagaoka, Yasuhiro Nakano, Hiroyuki Sakae, Kou Hasegawa, Fumio Otsuka

Clinical case reports 9 ( 11 ) e05116 2021年11月

記述言語：英語掲載種別：研究論文（学術雑誌）

Although ascites leakage to the skin is the most frequent complication after abdominal paracentesis, leakage to the subcutaneous space has not been reported. Here, we report a subcutaneous effusion after paracentesis suggesting ascites leakage. We should be aware of this rare complication due to the potential risk of dissemination.

DOI： 10.1002/ccr3.5116

Clinical Characteristics of Japanese Patients Who Visited a COVID-19 Aftercare Clinic for Post-Acute Sequelae of COVID-19/Long COVID 国際誌

Yuki Otsuka, Kazuki Tokumasu, Yasuhiro Nakano, Hiroyuki Honda, Yasue Sakurada, Naruhiko Sunada, Daisuke Omura, Kou Hasegawa, Hideharu Hagiya, Mikako Obika, Keigo Ueda, Hitomi Kataoka, Fumio Otsuka

Cureus 13 ( 10 ) e18568 2021年10月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Cureus, Inc.

Introduction The long-term clinical course, prognosis, and optimal management of symptoms and conditions after the acute phase of coronavirus disease 2019 (COVID-19) remain to be elucidated. The purpose of this study was to clarify the characteristics of patients referred to a COVID-19 aftercare (CAC) clinic established at a tertiary academic hospital in Japan. Methods This study was a descriptive case series study. All patients who visited the CAC clinic between February 15 and September 17 in 2021 were included. Patients' background, chief complaints, and clinical courses after the onset of COVID-19 were described. Results A total of 87 Japanese patients (median age, 40.0 years; interquartile range [IQR], 26.5-53.0 years; 52.9% women) were referred to the CAC clinic. The median interval between the onset of COVID-19 and the visit to the clinic was 79.0 (IQR, 52.5-112.0) days. Referral sources were hospitals (36 patients), clinics (47 patients), a local healthcare center (3 patients), and other (1 patient). The most common chief complaint was general fatigue (50.4%) followed by dysosmia (28.7%), dysgeusia (26.4%), hair loss (18.4%), headache (17.2%), dyspnea (16.1%), and dyssomnia (13.1%). Respiratory symptoms were common in the early stages of the disease but were less common as the chief complaints when visiting the clinic. On the other hand, neurological, psychiatric, and extremity symptoms were predominant one month after the onset of COVID-19. Conclusions Regardless of the severity in the acute phase, patients visiting our CAC clinic suffered from a variety of symptoms. General physicians skilled in using a comprehensive approach would be optimal to see patients with such complex symptoms.

DOI： 10.7759/cureus.18568

COVID-19外国人入院診療の実際

大塚勇輝, 萩谷英大, 中野靖浩, 大村大輔, 長谷川功, 大塚文男

日本医師会雑誌 150 ( 7 ) 1237 - 1241 2021年10月

記述言語：日本語出版者・発行元：(公社)日本医師会

国際化を背景に、在日外国人も新型コロナウイルス感染症(COVID-19)に罹患しているが、本邦でその診療上の課題に関する文献はない。2020年2月からの1年間に岡山大学病院総合内科・総合診療科に入院した、外国人COVID-19患者全5人を対象として、患者背景や言語状況、入院中のトラブルや解決策について診療録から抽出した。全員が日本語の書字・読字が全く不能であり、うち1人は日常会話も困難で電話医療通訳サービスを要したが、担当医や看護師に加えて、国際診療支援センターや臨床栄養部、精神科などと連携することで隔離解除まで入院継続が可能であった。COVID-19では本人の希望に沿わない入院や予定外入院のため、通常の外国人診療に比して負担・課題が大きい。特に言語面での制約は、隔離管理下での意思疎通や同意書の取得などの面で障壁となることが明らかとなった。院内組織の連携と、病院を超えた情報共有による病軟な対応が重要である。(著者抄録)

COVID-19外国人入院診療の実際

大塚勇輝, 萩谷英大, 中野靖浩, 大村大輔, 長谷川功, 大塚文男

日本医師会雑誌 150 ( 7 ) 1237 - 1241 2021年10月

記述言語：日本語出版者・発行元：(公社)日本医師会

国際化を背景に、在日外国人も新型コロナウイルス感染症(COVID-19)に罹患しているが、本邦でその診療上の課題に関する文献はない。2020年2月からの1年間に岡山大学病院総合内科・総合診療科に入院した、外国人COVID-19患者全5人を対象として、患者背景や言語状況、入院中のトラブルや解決策について診療録から抽出した。全員が日本語の書字・読字が全く不能であり、うち1人は日常会話も困難で電話医療通訳サービスを要したが、担当医や看護師に加えて、国際診療支援センターや臨床栄養部、精神科などと連携することで隔離解除まで入院継続が可能であった。COVID-19では本人の希望に沿わない入院や予定外入院のため、通常の外国人診療に比して負担・課題が大きい。特に言語面での制約は、隔離管理下での意思疎通や同意書の取得などの面で障壁となることが明らかとなった。院内組織の連携と、病院を超えた情報共有による病軟な対応が重要である。(著者抄録)

Intravascular lymphoma presenting as spinal cord infarction. 国際誌

Yukichika Yamamoto, Yoshito Nishimura, Misa Okumura, Yuki Otsuka, Kosuke Oka, Kazuhiro Ikeuchi, Hisakazu Nishimori, Kohei Taniguchi, Fumio Otsuka

Postgraduate medical journal 97 ( 1152 ) 672 - 673 2021年10月

An Elderly Male with Primary Sjögren's Syndrome Presenting Pleuritis as the Initial Manifestation.

Yukichika Yamamoto, Yuki Otsuka, Takayuki Katsuyama, Yoshito Nishimura, Kosuke Oka, Kou Hasegawa, Hideharu Hagiya, Fumio Otsuka

Acta medica Okayama 75 ( 4 ) 539 - 542 2021年8月

記述言語：英語掲載種別：研究論文（学術雑誌）

Primary Sjögren's syndrome (SS) is an autoimmune disease that usually affects the exocrine glands in mid-dle-aged women. Fifteen percent of SS patients experience severe systemic extraglandular complications, and pleuritis is one of the rare complications of SS. We report the case of an elderly Japanese man who initially pre-sented with a prolonged fever and chest pain and was finally diagnosed with primary SS-associated pleuritis. Of the nine reported cases of primary SS that initially presented with pleuritis, up to six cases were elderly males. This case highlights the complication of pleuritis among elderly males with primary SS.

DOI： 10.18926/AMO/62409

A patient with human coronavirus NL63 falsely diagnosed with COVID-19; Lesson learned for the importance of definitive diagnosis. 国際誌

Yuki Otsuka, Hideharu Hagiya, Yasuhiro Nakano, Daisuke Omura, Kou Hasegawa, Haruto Yamada, Koji Iio, Tomoyuki Honda, Fumio Otsuka

Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy 27 ( 7 ) 1126 - 1128 2021年7月

記述言語：英語掲載種別：研究論文（学術雑誌）

The gold standard for the diagnosis of coronavirus disease 2019 (COVID-19) is a nucleic acid detection test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which may occasionally reveal false-positive or false-negative results. Herein, we describe a case of a patient infected with human coronavirus NL63 (HCoV-NL63) who was falsely diagnosed with COVID-19 using the Ampdirect™ 2019-nCoV detection kit (Shimadzu Corporation, Japan) and SARS-CoV-2 Detection Kit (TOYOBO co., ltd.), and was admitted to a COVID-19 hospital ward. We suspected a cross-reaction between HCoV-NL63 and SARS-CoV-2; however, the reported genome sequences of HCoV-NL63 and N1/N2 primers for SARS-CoV-2 do not correspond. Thus, the PCR result was supposed to be a false positive possibly due to contamination or human error. Although the issue of a false-negative result has been the focus of much attention to prevent the spread of the disease, a false positive is fraught with problems as well. Physicians should recognize that unnecessary isolation violates human rights and a careful diagnosis is indispensable when the results of laboratory testing for COVID-19 are unclear. Generally, in cases such as a duplicate PCR test was partially positive, either N1 or N2 alone was positive, PCR testing for two or more target regions resulted in a positive only for single region, a high cycle threshold >35 was obtained, a false positive should be suspected. Especially, when these conditions coincide, we should recognize the high likelihood of a false positive.

DOI： 10.1016/j.jiac.2021.05.001

Barium appendicitis. 国際誌

Daisuke Omura, Naoko Yunoki, Yuki Otsuka, Yasuhiro Nakano, Hideharu Hagiya, Fumio Otsuka

Clinical case reports 9 ( 7 ) e04583 2021年7月

記述言語：英語掲載種別：研究論文（学術雑誌）

We have presented a case of barium appendicitis, which is a rare complication of barium enema studies. Barium sulfate is used widely for gastrointestinal radiographic studies and is associated with few complications. Clinicians need to be fully aware of this complication.

DOI： 10.1002/ccr3.4583

HIV-associated cerebral lymphoma in an elderly patient.

Yuki Otsuka, Hideharu Hagiya, Yasuhiro Nakano, Ryu Kimura, Kentaro Fujii, Fumio Otsuka

Geriatrics & gerontology international 21 ( 5 ) 435 - 436 2021年5月

Clinical Utility of the Ratio of Urinary Free Cortisol to Aldosterone as an Index for Inflammatory and Metabolic Dysregulation. 国際誌

Yuki Otsuka, Yasuhiro Nakano, Kazuki Tokumasu, Hiroyuki Honda, Mikako Obika, Kou Hasegawa, Yoshihisa Hanayama, Koichi Itoshima, Fumio Otsuka

Annals of clinical and laboratory science 51 ( 3 ) 352 - 358 2021年5月

記述言語：英語掲載種別：研究論文（学術雑誌）

OBJECTIVE: Urinary free cortisol (UFC) is a reliable marker to avoid cortisol fluctuation and the effects of binding proteins. However, UFC levels are affected by fluid intake and urine volume, and the normal levels range widely. METHODS: To discover the utility of the ratio of urinary cortisol to aldosterone excretions, 246 patients in whom daily excretions of UFC and aldosterone (UAC) were measured were retrospectively analyzed. RESULTS: The UFC/UAC ratio showed significant positive and negative correlations with the levels of serum cortisol (R=0.287) and aldosterone (R=-0.762), respectively. The UFC/UAC ratio increased with aging in female patients, while it was not altered by the level of BMI in either gender. Markers for metabolic and inflammatory status, including hemoglobin A1c (R=0.327), albumin (R=-0.331), C-reactive protein (R=0.317), ferritin (R=0.473), and D-dimer (R=0.569), showed correlations with the ratio of UFC/UAC that were more significant than the correlations with the serum level of cortisol or UFC alone. Of note, the UFC/UAC ratio was shown to be an indicator for the risk of diabetes (AUC: 0.765), hypoalbuminemia (0.839), hyper-CRPemia (0.748), and thrombophilia (0.824), in which the cut-off levels of the UFC/UAC ratio were around 12. CONCLUSION: The UFC/UAC ratio is a variable for detecting metabolic and inflammatory complications related to adrenocortical dysfunction.

Trends in the incidence and mortality of legionellosis in Japan: a nationwide observational study, 1999-2017. 国際誌

Shinnosuke Fukushima, Hideharu Hagiya, Yuki Otsuka, Toshihiro Koyama, Fumio Otsuka

Scientific reports 11 ( 1 ) 7246 - 7246 2021年3月

記述言語：英語掲載種別：研究論文（学術雑誌）

This study examined temporal trend, seasonality, and geographical variations of legionellosis incidence and mortality in Japan. This nationwide observational study used the Japanese Vital Statistics and Infectious Diseases Weekly Report (1999-2017) data to calculate legionellosis crude and age-adjusted incidence and mortality rates per 100,000 population by age and sex. Incidence was compared among the 4 seasons and regional incidence among 47 prefectures. Of 13,613 (11,194 men) people with legionellosis in Japan, 725 (569 men) were fatal. Increasing incidence trend occurred from 0.0004 (1999) to 1.37 (2017) per 100,000 population. People aged ≥ 70 years accounted for 43.1% overall; men's age-adjusted incidence rate was consistently approximately five times higher than for women. Significantly higher incidence occurred in summer than in winter (p = 0.013). Geographically, highest incidence (≥ 2.0 per 100,000 population) occurred in Hokuriku District, with increasing trends in Hokkaido and middle-part of Japan. Estimated fatality rates decreased consistently at 5.9% (95% confidence interval: - 8.1, - 3.5) annually, from 1999 to 2017, with no trend change point. Increasing legionellosis incidence occurred in Japan during 1999-2017, with declining estimated fatality rates. In this aging society and warming world, disease clinical burden may further deteriorate in future due to increasing incidence trends.

DOI： 10.1038/s41598-021-86431-8

Angina Simultaneously Diagnosed with the Recurrence of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome. 国際誌

Koki Li, Yuki Otsuka, Yasuhiro Nakano, Daisuke Omura, Kou Hasegawa, Mikako Obika, Keigo Ueda, Hitomi Kataoka, Fumio Otsuka

Diagnostics (Basel, Switzerland) 11 ( 3 ) 2021年3月

記述言語：英語

Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) mainly affects young adults and can have a potential impact on social functioning. As this syndrome is associated with endothelial dysfunction, the heart can be damaged via ischemia due to endothelial damage. This might potentially lead to heart failure, which accounts for approximately 20% of deaths among patients with ME/CFS. While cardiac ischemia is thought be a pathophysiologically important manifestation of this syndrome, this is not yet reported. Herein, we present a case of a young female with newly diagnosed vasospastic or microvascular angina and concurrent exacerbation of ME/CFS severity. Her anginal symptoms, including exertional chest pain and transient chest discomfort, mimicked those of ME/CFS but were relieved after the administration of a calcium channel blocker. We emphasize the possibility of concurrent angina and exacerbation of ME/CFS and the importance of detecting cardiac ischemia to avoid unfavorable outcomes.

DOI： 10.3390/diagnostics11030460

Ulcer-like Projection Accompanied by Giant Cell Arteritis.

Yuki Otsuka, Kosuke Oka, Yoshihisa Hanayama, Fumio Otsuka

Internal medicine (Tokyo, Japan) 60 ( 5 ) 819 - 820 2021年3月

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