Yonago Acta Medica
Online ISSN : 1346-8049
ISSN-L : 0513-5710
Current issue
Displaying 1-11 of 11 articles from this issue
Review Article
  • Chika Tanimura, Keiko Oba, Yoshimi Noguchi, Tomoyuki Itamochi
    Article type: Review Article: Special Contribution
    2024 Volume 67 Issue 2 Pages 80-92
    Published: 2024
    Released on J-STAGE: May 28, 2024
    Advance online publication: May 11, 2024
    JOURNAL FREE ACCESS

    This review aimed to clarify the concept of self-management in the context of physical frailty and to provide insights that support the development of interventions to prevent physical frailty. A concept analysis using thirty-three studies was performed, six attributes of the concept “self-management of physical frailty” were identified: {Cooperating with healthcare professionals or familiar persons}, {Investing and managing in resources}, {Acquisition and maintenance of individualized self-management strategies}, {Self-directed process}, {Goal setting and personalized action planning} and {Living with one’s own health condition with a positive attitude}. Self-management of physical frailty can be defined as a process in which an individual independently sets goals and action plans, engages in strategies such as exercise and nutritional management, and lives with one’s own health condition with a positive attitude by collaborating with healthcare professionals and others, in addition to utilizing resources. To support the process in which an individual independently sets goals and action plans, engages in strategies, self-management support based on learning theories that lead to cognitive, emotional, and behavioral changes is necessary.

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  • Keiichi Hanaki, Tomoe Kinoshita, Masanobu Fujimoto, Yuki Sonoyama-kawa ...
    Article type: Review Article: Special Contribution
    2024 Volume 67 Issue 2 Pages 93-99
    Published: 2024
    Released on J-STAGE: May 28, 2024
    Advance online publication: May 21, 2024
    JOURNAL FREE ACCESS

    Alström syndrome is a form of inherited obesity caused by a single gene abnormality and is inherited as an autosomal recessive trait. It is characterised by a variety of clinical manifestations, including progressive visual and hearing impairment, type 2 diabetes mellitus, dilated cardiomyopathy, and hepatic and renal dysfunction, in addition to obesity. Recent insights underline the pivotal involvement of the disease-associated gene (ALMS1) in cilia formation and function, leading to the classification of its clinical manifestations as a ciliopathy. This review delineates the diverse clinical indicators defining the syndrome and elucidates its pathological underpinnings.

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Original Article
  • Hiroto Yunaga, Hidenao Miyoshi, Ryoya Ochiai, Takuro Gonda, Toshio Sak ...
    Article type: Original Article
    2024 Volume 67 Issue 2 Pages 100-107
    Published: 2024
    Released on J-STAGE: May 28, 2024
    Advance online publication: April 22, 2024
    JOURNAL FREE ACCESS

    Background We assessed and compared the image quality of normal and pathologic structures as well as the image noise in chest computed tomography images using “adaptive statistical iterative reconstruction-V” (ASiR-V) or deep learning reconstruction “TrueFidelity”.

    Methods Forty consecutive patients with suspected lung disease were evaluated. The 1.25-mm axial images and 2.0-mm coronal multiplanar images were reconstructed under the following three conditions: (i) ASiR-V, lung kernel with 60% of ASiR-V; (ii) TF-M, standard kernel, image filter (Lung) with TrueFidelity at medium strength; and (iii) TF-H, standard kernel, image filter (Lung) with TrueFidelity at high strength. Two radiologists (readers) independently evaluated the image quality of anatomic structures using a scale ranging from 1 (best) to 5 (worst). In addition, readers ranked their image preference. Objective image noise was measured using a circular region of interest in the lung parenchyma. Subjective image quality scores, total scores for normal and abnormal structures, and lesion detection were compared using Wilcoxon’s signed-rank test. Objective image quality was compared using Student’s paired t-test and Wilcoxon’s signed-rank test. The Bonferroni correction was applied to the P value, and significance was assumed only for values of P < 0.016.

    Results Both readers rated TF-M and TF-H images significantly better than ASiR-V images in terms of visualization of the centrilobular region in axial images. The preference score of TF-M and TF-H images for reader 1 were better than that of ASiR-V images, and the preference score of TF-H images for reader 2 were significantly better than that of ASiR-V and TF-M images. TF-M images showed significantly lower objective image noise than ASiR-V or TF-H images.

    Conclusion TrueFidelity showed better image quality, especially in the centrilobular region, than ASiR-V in subjective and objective evaluations. In addition, the image texture preference for TrueFidelity was better than that for ASiR-V.

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  • Yuto Arai, Kento Ohta, Go Yoshino, Tohru Okanishi, Yoshihiro Maegaki
    Article type: Original Article
    2024 Volume 67 Issue 2 Pages 108-113
    Published: 2024
    Released on J-STAGE: May 28, 2024
    Advance online publication: April 17, 2024
    JOURNAL FREE ACCESS

    Background In Japan, approximately 35% of facilities experience sedation-related complications for pediatric magnetic resonance imaging (MRI), including severe complications such as respiratory and cardiac arrests. In the medical education field, simulation improves not only the quality of real emergency response but also health care workers’ self-efficacy. Individuals with high self-efficacy are better prepared at handling diverse conditions. However, there is no research examining the impact of sedation simulation for pediatric MRI on the self-efficacy of health care workers. This study aimed to retrospectively investigate the impact of sedation simulation for pediatric MRI on the self-efficacy of health care workers in sedation.

    Methods The study was conducted on August 18, 2023, and enrolled pediatricians, nurses, and radiological technologists. The impact of sedation simulation for pediatric MRI on the participants was analyzed using confidence scale scores and part of the Pediatric Resuscitation and Escalation of Care Self-Efficacy Scale (PRSES), before and after sedation simulation for pediatric MRI.

    Results Eighteen participants (six pediatricians, six nurses, and six radiological technologists) were included in this study. Regarding confidence scale scores, a significant improvement was observed in the overall group (P = 0.002) and among the nurses (P = 0.0036). Regarding the item ‘When confronted with a clinically deteriorating child, I know how to ask for assistance’ of PRSES, a significant improvement was observed in the overall group (P = 0.0035) and among the radiological technologists (P = 0.048).

    Conclusion There’s a potential for sedation simulation for pediatric MRI to increase the self-efficacy of health care workers in MRI sedation. Our findings suggest that this training has a valuable role in preparing health care workers to practice sedation for pediatric MRI.

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  • Ryota Okazaki, Tomoya Harada, Yoshihiro Funaki, Masato Morita, Miki Ta ...
    Article type: Original Article
    2024 Volume 67 Issue 2 Pages 114-123
    Published: 2024
    Released on J-STAGE: May 28, 2024
    Advance online publication: April 22, 2024
    JOURNAL FREE ACCESS
    Supplementary material

    Background Major randomized clinical trials have shown that biological therapy can reduce the exacerbation rate and oral corticosteroid (OCS) dosage in patients with severe eosinophilic asthma. However, data on the continuation, efficacy, and safety of biological therapy in older patients with asthma are limited. Therefore, the aim of this study was to evaluate the differences in the continuation rate, efficacy, and safety of biological therapy between older (≥ 65 years) and younger (< 65 years) patients with asthma.

    Methods In this single-center retrospective observational study, we collected clinical data of patients with asthma who were administered biological drugs such as omalizumab, mepolizumab, benralizumab, and dupilumab between April 2009 and August 2022. We comparatively analyzed the continuation, efficacy, and safety of biological therapy between older (age ≥ 65 years) and younger patient (age < 65 years) groups. The reasons for discontinuation or switching of biological drugs were also evaluated.

    Results Sixty-two (31 older and 31 younger) patients were treated with 91 biologics during the observational period. The mean age of older patients was 74.3 ± 5.1 years and that of younger patients was 48.0 ± 14.0 years. The continuation rate of biological therapy was not significantly different between the groups. Social background was the most common reason for discontinuation of biological therapy in both groups, and insufficient effect was the most common reason for switching to biological drugs. Asthma exacerbations decreased in both groups within the first 12 months of biologic therapy. The dosage of OCS tended to decrease in the older group and significantly decrease in the younger group.

    Conclusion Biologic therapy for older patients with asthma can be continued, with efficacy and safety similar to those in younger patients with asthma.

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  • Makiko Adachi, Takeshi Kumagai, Keiko Hosho, Kiyoshi Nagata, Masachika ...
    Article type: Original Article
    2024 Volume 67 Issue 2 Pages 124-134
    Published: 2024
    Released on J-STAGE: May 28, 2024
    Advance online publication: May 24, 2024
    JOURNAL FREE ACCESS

    Background Patients taking multiple drugs and various health foods often develop acute hepatitis. We hypothesized that the interaction between health foods and drug metabolism was the cause of severe liver injury in these patients. Therefore, we studied changes in the activity of the drug-metabolizing enzyme, cytochrome P450 (CYP), using slimming health food extracts and elucidated the molecular mechanism of liver injury onset through hepatotoxicity evaluation.

    Methods For cytotoxicity testing, health food extract samples were added to HepG2 cells derived from hepatic parenchymal cells and culture medium, and cell viability was calculated 48 h after culture. To evaluate CYP3A4 induction, 3-1-10 cells constructed with a reporter linked to CYP3A4 gene were used, and reporter activity was measured 48 h after culture.

    Results In the chronological order of the slimming health food intake history of the patient, niacinamide and Gymnema sylvestre extracts strongly inhibited HepG2 cell viability. In contrast, dietary supplements A and Coleus forskohlii extract strongly induced CYP3A4 reporter activity.

    To confirm CYP3A4 induction in humans, humanized CYP3A/pregnane X receptor (PXR) mice were treated with forskolin. CYP3A4 mRNA expression levels were elevated 3.9 times compared to that of the control group (P < 0.05).

    Conclusion Coleus forskohlii extract showed the strongest transcriptional activation of CYP3A4 gene. In a mouse model of human-type drug metabolism, forskolin induced CYP3A4 transcription. Thus, we concluded that CYP3A4 induction by Coleus forskohlii is one of the causes of crucial hepatocellular injury, which is a type of liver injury caused by the active metabolite of acetaminophen produced by CYP3A4.

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  • Yukiko Fujihara, Mika Fukada, Hiromi Sakuda, Kazuaki Tanabe, Tsuyoshi ...
    Article type: Original Article
    2024 Volume 67 Issue 2 Pages 135-149
    Published: 2024
    Released on J-STAGE: May 28, 2024
    Advance online publication: May 21, 2024
    JOURNAL FREE ACCESS

    Background Improving breast cancer screening rates is crucial for early detection. However, factors hindering regular screening among working women remain unclear. This study aimed to clarify screening behavior among working women in Japan and associated discouraging factors.

    Methods Surveys were conducted from April to May 2019 among women aged 40–60 at public offices and companies in Tottori Prefecture. We used two surveys: the “Basic Attributes Questionnaire” and the “Structural Questionnaire on Rejecting Screening.” Data analysis involved chi-squared tests, logistic regression analysis, factor analysis, and nonparametric tests.

    Results Completed questionnaires analyzed were 668 out of 825 collected (response rate: 81.0%). Most participants were part-time employees with an average age of 51 years. Over 60% reported undergoing regular screening. Logistic regression analysis identified part-time employment, lack of children, a discouraging workplace atmosphere, and absence of personal connections to breast cancer patients as factors associated with avoiding breast cancer screening. Factor analysis identified five factors and 16 items as reasons for not undergoing regular screening. Women who had no spouse, no children or felt that their workplace was not encouraging breast screening felt difficulty in scheduling screening most strongly.

    Conclusion Individuals who had part-time employment and had no children, did not know a breast cancer patient, or considered that their workplace environment was not supportive were more likely to avoid undergoing regular breast cancer screening. Also, women who did not undergo regular screening experienced difficulty in scheduling. In the future, the challenge lies in disseminating accurate knowledge about breast cancer to foster awareness without excessive anxiety.

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  • Yoichi Mino, Fumiko Miyahara, Mazumi Miura, Aya Imamoto, Hiromi Fujii, ...
    Article type: Original Article
    2024 Volume 67 Issue 2 Pages 150-156
    Published: 2024
    Released on J-STAGE: May 28, 2024
    Advance online publication: May 11, 2024
    JOURNAL FREE ACCESS

    Background Elective cesarean sections (ECSs) for early-term pregnancies at 37 weeks of gestational age (GA) aim to reduce the risk of emergency cesarean sections due to the onset of labor or rupture of membranes. However, resultant increases in neonatal respiratory disorders, including transient tachypnea of the newborn (TTN) have been observed. However, few studies have elucidated the associated risk factors. Consequently, we aimed to determine whether differences existed in the clinical outcomes between neonates delivered via ECS at 37 weeks and those delivered at ≥ 38 weeks of GA.

    Methods A retrospective analysis was conducted on 259 neonates born via ECS at Tottori University Hospital, between January 2013 and December 2019, with birthweights ≥ 2500 g and GAs > 37 weeks. The neonates were categorized into two cohorts: births at 37 and at ≥ 38 weeks of GA (37-week and 38-week cohorts). The principal clinical outcomes included the appearance, pulse, grimace, activity, and respiration (Apgar) scores, need for positive-pressure ventilation, incidence of TTN, and length of hospital stay.

    Results No statistically significant differences were observed in the indications for ECS, sex, or birthweight between the two cohorts. The 37-week cohort exhibited a lower 1-min Apgar score than did the 38-week cohort, with no statistically significant differences between the two cohorts, at 5 min. Statistically significant differences were not observed in the need for positive-pressure ventilation during initial resuscitation or length of hospital stay for patients with TTN between the two cohorts. Notably, the 37-week cohort exhibited a significantly higher incidence of TTN than did the 38-week cohort.

    Conclusion ECSs at 37 weeks of GA exhibited an increased risk of TTN than ECSs at ≥ 38 weeks of GA. Strategic neonatal care and adequate preparation can mitigate this risk without affecting the length of hospital stay.

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Paient Report
  • Yosuke Nakamura, Naoki Kikumoto, Hiromi Takeuchi, Toru Kimura, Motoki ...
    Article type: Patient Report
    2024 Volume 67 Issue 2 Pages 157-162
    Published: 2024
    Released on J-STAGE: May 28, 2024
    Advance online publication: April 17, 2024
    JOURNAL FREE ACCESS

    We report the case of a 55-year-old female with eosinophilic granulomatosis with polyangiitis and chronic rhinosinusitis with nasal polyp. Rhinosinusitis recurred 6 months after full-house endoscopic sinus surgery. Although conventional treatment with azathioprine and mepolizumab with steroids was given, it was difficult to simultaneously control both rhinosinusitis and eosinophilic granulomatosis with polyangiitis. Clinical examinations showed polyps in the olfactory cleft, and the patient’s anosmia gradually became persistent. Even after administering mepolizumab for a certain period of time, symptoms did not improve, but when the biologic agent was switched to dupilumab, an improvement in recalcitrant chronic rhinosinusitis with nasal polyp was observed. While dupilumab was administered intermittently for refractory chronic rhinosinusitis with nasal polyp, the rhinosinusitis improved and symptoms such as worsening of eosinophilic granulomatosis with polyangiitis paresthesia were observed. Both symptoms gradually subsided 19 months after starting intermittent administration, leading to the discontinuation of dupilumab administration. Rhinosinusitis in the setting of eosinophilic granulomatosis with polyangiitis may be refractory in some cases, and this case provides findings demonstrating the strong effect of dupilumab on eosinophilic inflammation.

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  • Masahiko Inoue
    Article type: Patient Report
    2024 Volume 67 Issue 2 Pages 163-168
    Published: 2024
    Released on J-STAGE: May 28, 2024
    Advance online publication: April 17, 2024
    JOURNAL FREE ACCESS

    Self-injurious, stereotyped, and aggressive/destructive behaviors exhibited by individuals with intellectual disabilities and autism spectrum disorders are called challenging behaviors (CBs). Severe CBs often require long-term treatment involving psychosocial approaches based on behavioral interventions and/or medication. A boy with severe CB enrolled in a special needs school, with diagnoses of autism and intellectual disability, was the client of the study. This case report describes the long-term outcomes of eight years of continuous school consultation. The student’s severe CB improved with environmental adjustments in the classroom, unified teacher involvement, instruction of leisure and communication skills, and medication. Long-term research on changes in CBs through school consultation is limited, and this case report provides important insights into the development of effective educational programs and curricula for severe CBs in school-aged children.

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  • Takehisa Fujiwaki, Chihiro Matama, Hironori Kobayashi, Hitoshi Sejima
    Article type: Patient Report
    2024 Volume 67 Issue 2 Pages 169-175
    Published: 2024
    Released on J-STAGE: May 28, 2024
    Advance online publication: May 22, 2024
    JOURNAL FREE ACCESS

    We report a 1-year-7-month-old boy with West syndrome who had associated secondary adrenal insufficiency as a side effect of synthetic ACTH therapy. Serial investigation using corticotropin-releasing hormone (CRH) stimulation tests revealed the time course of his hypothalamic-pituitary-adrenal (HPA) axis recovery after the secondary adrenal insufficiency. Three days after completion of the ACTH therapy, the basal cortisol, peak cortisol, and peak ACTH levels were all low. One month after ACTH therapy, the basal cortisol level exceeded the cutoff level for intact adrenocortical function, and the peak ACTH level had improved. Five months after ACTH therapy, the peak cortisol level exceeded the cutoff level for intact adrenocortical function. The secondary adrenal insufficiency after ACTH therapy and the four months’ time lag between the recovery timing of the basal and peak cortisol levels on CRH stimulation tests were notable findings. This follow-up data is valuable information for understanding the timeline for the process of recovery of the HPA axis from secondary adrenal insufficiency, that should lead to appropriate protocols for adrenal testing and adrenocorticosteroid replacement for patients who have undergone ACTH therapy. We also reviewed previous studies on secondary adrenal insufficiency after ACTH therapy in terms of incidence rate, onset risk factors, and recovery from it. Based on our own experience and previous reports, we suggest secondary adrenal insufficiency after ACTH therapy as follows: regarding the total synthetic ACTH dose administered, approximately 0.2 mg/kg of ACTH could cause secondary adrenal insufficiency. As for the required period for convalescence from secondary adrenal insufficiency, it would take from two to five months.

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