1.A Case of Thoracic Aortic Aneurysm due to Childhood-Onset Takayasu’s Arteritis
Kumiko SONE ; Masaaki KOIDE ; Yoshifumi KUNII ; Masafumi YASHIMA ; Daisuke TAKAHASHI ; Takuya MAEDA ; Yuchen CAO ; Yuta TSUKADA ; Satoru NISHIYAMA
Japanese Journal of Cardiovascular Surgery 2026;55(1):31-35
The patient is a 15-year-old female who initially presented to our hospital at the age of 6 with complaints of tachycardia. However, no significant abnormalities were identified, and she was subsequently placed under observation. At the age of 7, the patient developed symptoms including headache, chest pain, and absent pulses, accompanied by a pronounced inflammatory response. A thorough diagnostic evaluation was performed, which led to the diagnosis of Takayasu’s arteritis. At that time, computed tomography (CT) imaging revealed a fusiform aortic aneurysm with a maximum short axis diameter of 34 mm, extending from the ascending aorta to the proximal aortic arch. Under vigilant monitoring, by the age of 15, the maximum short diameter had increased to 45 mm, demonstrating progressive enlargement over time. Following a multidisciplinary discussion of treatment options in a heart team conference, it was determined that surgical intervention was warranted. Given that the patient was receiving maintenance therapy for a relapse of arteritis, the dose of prednisolone was reduced to 4 mg prior to performing an ascending partial arch aortic replacement. The postoperative course was uneventful, and the patient was discharged on postoperative day 13. She continues to receive maintenance therapy and undergoes regular CT scans at the outpatient clinic. Childhood-onset Takayasu’s arteritis is exceedingly rare, but with timely surgical intervention and sustained disease management, an improved long-term prognosis can be anticipated.
2.Tracking a patient with no technetium-99m-pyrophosphate myocardial uptake at surgical valve replacement for aortic stenosis.
Koji TAKAHASHI ; Daisuke SASAKI ; Takaaki IWAMURA ; Shuhei YAMAMOTO ; Mitsuharu UEDA ; Nobuhisa YAMAMURA ; Mako YOSHINO ; Daijiro ENOMOTO ; Hiroe MORIOKA ; Shigeki UEMURA ; Takafumi OKURA ; Tomoki SAKAUE ; Katsuji INOUE
Journal of Geriatric Cardiology 2025;22(9):828-833
3.Survey of the Actual Situation of HRQoL among Patients with Chronic Diseases at Community Pharmacies in Japan and Decision Tree Analysis of Patient Attributes Affecting HRQoL
Norimitsu HORII ; Akira YOSHIDA ; Shinji OSHIMA ; Naohito TAKAHASHI ; Junya MIKATA ; Shigeru OHSHIMA ; Daisuke KOBAYASHI
Japanese Journal of Drug Informatics 2025;27(2):48-57
Objective: We investigated the health-related quality of life (HRQoL) of patients with chronic diseases in community pharmacies in Japan and examined its relationship to patient attributes, an area that has not been previously studied.Method: We surveyed 1,500 participants with chronic diseases and 1,500 from the general population without chronic diseases (Free-GP) using the EuroQol (5-dimension, 5-level) questionnaire. Patient attributes included the number of drugs used, duration of medication, number of chronic conditions, perceived disease severity, and perceived treatment importance. Logistic regression analyses assessed how these attributes influenced the likelihood of reporting “full health” (no problems on all HRQoL questions) among patients with chronic disease. An exploratory decision tree analysis was performed to identify patient attributes that might decrease HRQoL.Result: The HRQoL score of patients (0.856) was lower than that of Free-GP (0.942). The HRQoL of patients tended to increase with aging. Among patients, the mean HRQoL score was 0.781 for polypharmacy, which decreased with the addition of disease severity perception (even lower for those in their 20s-40). Even in the absence of polypharmacy, the average HRQoL score decreased when patients were in their 20s with multimorbidity. The HRQoL scores of non-polypharmacy patients in their 30s or older were higher than the mean scores of patients with chronic disease.Conclusion: To provide extensive care for patients with reduced HRQoL in community pharmacies, it is necessary to focus on polypharmacy. Reduced HRQoL should be considered in younger patients with multimorbidity, even in the absence of polypharmacy.
4.Perceptions of Pharmacy Pharmacists’ Roles in Community: A Pre- and During-COVID-19 Comparison Between Patients and Pharmacists
Naohito TAKAHASHI ; Akira YOSHIDA ; Norimitsu HORII ; Shigeru OHSHIMA ; Junya MIKATA ; Shinji OSHIMA ; Daisuke KOBAYASHI
Japanese Journal of Social Pharmacy 2025;44(2):60-69
The COVID-19 pandemic has substantially transformed the healthcare sector. While telemedicine has rapidly advanced, the essential roles of medical professionals, such as doctors and nurses, have been reaffirmed. Even prior to the pandemic, we had been evaluating pharmacists’ interpersonal roles from both patient and pharmacist perspectives using role theory. Accordingly, we investigated whether perceptions of pharmacists’ roles changed among patients and pharmacists through comparable surveys conducted before and during the pandemic. A nationwide online survey was conducted twice (April 30-May 7, 2021, and April 22-25, 2022), targeting 1,000 patients who used community pharmacies and 600-800 pharmacists employed at those pharmacies across Japan. The questionnaire comprised 12 items: 11 concerning pharmacists’ interpersonal roles, including communication, comprehending medication effects, and serving as a family pharmacist or drug expert, and one additional item addressing expectations during the pandemic. A five-point Likert scale was used. Compared with pre-pandemic results, patient evaluations revealed no statistically significant changes in either 2021 or 2022. However, pharmacists’ self-evaluations declined in response to the question, “Are pharmacists more expert in medicine than doctors?” The newly introduced question regarding pharmacists’ contributions to the community received higher ratings from patients than from pharmacists, indicating considerable patient expectations. Overall, only pharmacists’ perceptions changed, demonstrating decreased confidence and self-evaluation. Conversely, patient perceptions remained stable, suggesting that pharmacists are more sensitive to social changes than patients themselves.
5.Clinical meaning of sarcopenia in patients undergoing endoscopic treatment
Hiroyuki HISADA ; Yosuke TSUJI ; Hikaru KURIBARA ; Ryohei MIYATA ; Kaori OSHIO ; Satoru MIZUTANI ; Hideki NAKAGAWA ; Rina CHO ; Nobuyuki SAKUMA ; Yuko MIURA ; Hiroya MIZUTANI ; Daisuke OHKI ; Seiichi YAKABI ; Yu TAKAHASHI ; Yoshiki SAKAGUCHI ; Naomi KAKUSHIMA ; Nobutake YAMAMICHI ; Mitsuhiro FUJISHIRO
Clinical Endoscopy 2024;57(4):446-453
With increasing global life expectancy, the significance of geriatric assessment parameters has increased. Sarcopenia is a crucial assessment parameter and is defined as the age-related loss of muscle mass and strength. Sarcopenia is widely acknowledged as a risk factor for postoperative complications in diverse advanced malignancies and has a detrimental effect on the long-term prognosis. While most studies have primarily concentrated on the correlation between sarcopenia and advanced cancer, more recent investigations have focused on the relationship between sarcopenia and early-stage cancer. Endoscopic submucosal dissection (ESD), which is less invasive than surgical intervention, is extensively employed in the management of early-stage cancer, although it is associated with complications such as bleeding and perforation. In recent years, several reports have revealed the adverse consequences of sarcopenia in patients with early-stage cancer undergoing ESD. This literature review briefly summarizes the recent studies on the association between sarcopenia and ESD.
7.Perceptions of older adults and generativity among older citizens in Japan: a descriptive cross-sectional study
Yuho SHIMIZU ; Tomoya TAKAHASHI ; Kenichiro SATO ; Susumu OGAWA ; Daisuke CHO ; Yoshifumi TAKAHASHI ; Daichi YAMASHIRO ; Yan LI ; Keigo HINAKURA ; Ai IIZUKA ; Tomoki FURUYA ; Hiroyuki SUZUKI
Osong Public Health and Research Perspectives 2023;14(5):427-432
Objectives:
As the population ages worldwide, including in Japan, there is a growing expectation for older adults to remain active participants in society. The act of sharing one’s experiences and knowledge with younger generations through social engagement not onlyenriches the lives of older individuals, but also holds significant value for our society. In thisstudy, we examined both positive and negative perceptions of older adults and investigated the correlation between these perceptions and generativity among older citizens. Additionally, we evaluated the impact of life satisfaction on these factors.
Methods:
We conducted a survey of 100 older adults in Japan (mean age, 71.68 years) and utilized multiple regression analyses, using positive and negative perceptions of older adults, life satisfaction, and demographic factors as independent variables. The sub-categories of generativity—namely, generative action, concern, and accomplishment—were used as dependent variables.
Results:
Participants who held a more positive perception of older adults demonstrated a higher level of generative actions and concerns. Additionally, participants who reported higher levels of life satisfaction also exhibited more generative actions, concerns, and accomplishments. Conversely, those who held a more negative perception of older adults were found to have higher levels of generative actions.
Conclusion
Enhancing positive perceptions of older adults among them can boost the subcategories of generativity. This study, which was conducted from an exploratory perspective, has several limitations, including a potential sampling bias. A more comprehensive examination of the relationship between perceptions of older adults and generativity is anticipated in future research.
8.The influence of information sources on intention changes to receive COVID-19 vaccination: A prospective cohort study in Japan.
Daisuke HORI ; Tsukasa TAKAHASHI ; Yudai KANEDA ; Akihiko OZAKI ; Takahiro TABUCHI
Environmental Health and Preventive Medicine 2023;28():10-10
BACKGROUND:
Before the COVID-19 vaccine became available, many Japanese people were undecided about whether or not to receive them. Their decisions were keys to achieving herd immunity. The impact of the type of information source on the COVID-19 vaccine uptake decision-making process remains unclear. We aimed to investigate the association between information source usage on COVID-19 and subsequent vaccine uptake status among those who have yet to decide whether to receive vaccines from non-prioritized people for vaccination.
METHODS:
Prospective cohort online self-administered surveys were conducted in February 2021 (T1), before the start of the mass vaccination program, and September-October 2021 (T2), when the vaccines were available to all citizens. The survey's target population was registered monitors of an Internet research company. Participants who answered "I want to get vaccinated after waiting to see how it goes." at T1 were eligible for analysis. The outcome variable was the COVID-19 vaccine uptake status in T2, and the predictors were 20 types of information sources, categorized based on people (family members, etc.), institutions (governments, etc.), or media (TV news, etc.). Adjusted odds ratio and 95% confidence intervals were estimated using logistic regression adjusted for possible confounders.
RESULTS:
The 5,139 respondents, mean age and standard deviation was 42.8 ± 12.5, 55.7% female, were eligible for analysis. 85.7% completed vaccination (including reserved/intended people) in T2. In the multivariate logistic analysis, odds ratios (95% confidence interval) for vaccine uptake were 1.49 (1.18-1.89) for workplaces/schools, 1.81 (1.33-2.47) for LINE, 0.69 (0.55-0.86) for Internet news and 0.62 (0.48-0.82) for video sharing sites.
CONCLUSIONS
The type of information source usage played an important role in the decision to vaccinate against COVID-19. Although caution is needed in interpreting the results, obtaining information from workplaces/schools and LINE was influential in promoting immunization.
Humans
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Female
;
Male
;
Information Sources
;
COVID-19 Vaccines
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Prospective Studies
;
Intention
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Japan
;
COVID-19/prevention & control*
;
Vaccination
9.Ibaraki's Amabie-chan usage and its association with infection prevention behavior and fear of COVID-19: a cross-sectional preliminary survey of the Tsukuba Salutogenic Occupational Cohort Study.
Daisuke HORI ; Yuichi OI ; Shotaro DOKI ; Tsukasa TAKAHASHI ; Tomohiko IKEDA ; Yu IKEDA ; Yo ARAI ; Kei MUROI ; Hiroaki SASAKI ; Mami ISHITSUKA ; Asako MATSUURA ; Wyi GO ; Ichiyo MATSUZAKI ; Shinichiro SASAHARA
Environmental Health and Preventive Medicine 2022;27(0):17-17
BACKGROUND:
Ibaraki's Amabie-chan is a COVID-19 infection control system unique to Ibaraki prefecture, Japan. It requires residents to register each time they visit events, commercial facilities, and restaurants. The number of registrations has been limited, and its function alerting about people positive for COVID-19 infection seems not to be working. Nevertheless, registration with the system might have some impact on the user's behavior. In the current preliminary survey, the possible impact of Ibaraki's Amabie-chan on infection prevention behavior and fear of COVID-19 was investigated.
METHODS:
A cross-sectional, web-based, anonymous, and self-administered survey was conducted at two workplaces in Tsukuba Science City, Ibaraki, Japan. The first survey was conducted at one of the workplaces in November 2020, and the second survey, at the other workplace in February 2021. Variables of interest were sex, age group, marital status, employment status, Ibaraki's Amabie-chan use, COVID-19 Contact-Confirming Application use, ten items of infection prevention behaviors, and fear of COVID-19. Hierarchical linear regression analysis was performed.
RESULTS:
In both surveys, use of Ibaraki's Amabie-chan was significantly associated with COCOA use and with "physical condition management such as body temperature measurement." No association was found with other infection prevention behaviors or with fear of COVID-19.
CONCLUSIONS
Our findings did not provide sufficient evidence for the effectiveness of Ibaraki's Amabie-chan in regard to users' infection control behavior. Further detailed study is needed to investigate the effectiveness in terms of infection prevention and the cost-effectiveness of Ibaraki's Amabie-chan.
COVID-19/prevention & control*
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Cohort Studies
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Cross-Sectional Studies
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Fear
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Humans
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SARS-CoV-2
10.Development of a prognostic prediction support system for cervical intraepithelial neoplasia using artificial intelligence-based diagnosis
Takayuki TAKAHASHI ; Hikaru MATSUOKA ; Rieko SAKURAI ; Jun AKATSUKA ; Yusuke KOBAYASHI ; Masaru NAKAMURA ; Takashi IWATA ; Kouji BANNO ; Motomichi MATSUZAKI ; Jun TAKAYAMA ; Daisuke AOKI ; Yoichiro YAMAMOTO ; Gen TAMIYA
Journal of Gynecologic Oncology 2022;33(5):e57-
Objective:
Human papillomavirus subtypes are predictive indicators of cervical intraepithelial neoplasia (CIN) progression. While colposcopy is also an essential part of cervical cancer prevention, its accuracy and reproducibility are limited because of subjective evaluation. This study aimed to develop an artificial intelligence (AI) algorithm that can accurately detect the optimal lesion associated with prognosis using colposcopic images of CIN2 patients by utilizing objective AI diagnosis.
Methods:
We identified colposcopic findings associated with the prognosis of patients with CIN2. We developed a convolutional neural network that can automatically detect the rate of high-grade lesions in the uterovaginal area in 12 segments. We finally evaluated the detection accuracy of our AI algorithm compared with the scores by multiple gynecologic oncologists.
Results:
High-grade lesion occupancy in the uterovaginal area detected by senior colposcopists was significantly correlated with the prognosis of patients with CIN2. The detection rate for high-grade lesions in 12 segments of the uterovaginal area by the AI system was 62.1% for recall, and the overall correct response rate was 89.7%. Moreover, the percentage of high-grade lesions detected by the AI system was significantly correlated with the rate detected by multiple gynecologic senior oncologists (r=0.61).
Conclusion
Our novel AI algorithm can accurately determine high-grade lesions associated with prognosis on colposcopic images, and these results provide an insight into the additional utility of colposcopy for the management of patients with CIN2.


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