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Faculty of Medicine College Hospital Mother and child health center of integrated perinatal period |
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Assistant Professor |
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Related SDGs |
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TAKAHASHI Masako
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Papers 【 display / non-display 】
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T1 mapping on cardiac magnetic resonance of myocardial calcification after septic shock Reviewed
Takahashi M., Kodama Y., Takamura K., Enzaki M., Nagasawa S., Yamada A., Moritake H.
Pediatrics International 68 ( 1 ) 2026.1
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：Pediatrics International
DOI： 10.1111/ped.70337
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Nagata H., Kitadai Y., Hara T., Shinya M., Sugitani Y., Takahashi M., Doi K., Okada S., Shimabukuro A., Doi H., Kozuma Y., Hamada T., Kawamura J., Nishihara T., Teramachi Y., Kan N., Maeno Y., Nishibatake M.
Pediatrics International 68 ( 1 ) 2026.1
Language：English Publishing type：Research paper (scientific journal) Publisher：Pediatrics International
Background: The prenatal detection rate (PDR) of congenital heart disease (CHD) has been scarcely reported in Japan. This study aimed to investigate PDR of critical CHD in a region of Japan and to evaluate the impact of prenatal diagnosis on postnatal mortality and severe morbidity. Materials and Methods: We included patients diagnosed with CHD either prenatally and postnatally between January 1st 2018 and December 31st 2020, based on the institutional database. The Kyu-Yama region comprises the seven prefectures of Kyushu island, Yamaguchi prefecture, and Okinawa prefecture. Clinical outcome was compared with prenatal versus postnatal diagnosis. Results: The overall PDR of critical CHD in the region was 64% (400 of 626 cases). Fifty-four (14%) fetuses were diagnosed within 22 weeks of gestational age. Among these cases, termination of pregnancy was selected in 5 (1%) cases. In subgroup analyses by CHD type, heterotaxy had the highest detection rate (91%), followed by hypoplastic left heart syndrome (86%). In contrast, lower detection rates were observed in transposition of the great arteries (43%) and total anomalous pulmonary venous connection (15%). Detection rates varied by prefectures, ranging from 41% to 75%. Among actively managed cases, overall, there was a significant difference in mortality and severe morbidity between prenatal and postnatal groups [66 (18%) vs. 20 (9%), p = 0.0031]. Conclusion: The overall PDR in this regional cohort was favorable; however, substantial differences remained across prefectures and CHD types. Reducing these disparities may require guideline-based education. Further research is warranted to clarify the prognostic impact of prenatal diagnosis.
DOI： 10.1111/ped.70467
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Yokoyama R., Kodama Y., Takamura K., Takahashi M., Tanaka M., Watanabe N., Moritake H.
Journal of Cardiology Cases 31 ( 6 ) 155 - 157 2025.6
Language：English Publishing type：Research paper (scientific journal) Publisher：Journal of Cardiology Cases
Exercise stress echocardiography (ESE) is a feasible and valuable tool for evaluating subclinical pulmonary hypertension (PH). However, its utility in patients with unilateral pulmonary branch stenosis remains unclear. We present a case involving a 17-year-old patient with left pulmonary branch stenosis who exhibited exercise-induced PH in the contralateral pulmonary artery as detected by ESE. Standard echocardiography was unable to visualize the left pulmonary artery clearly; therefore, computed tomography was performed, revealing a left pulmonary branch stenosis with a minimum diameter of 4.2 mm. Resting echocardiography showed a pressure gradient of 17 mmHg, calculated using the tricuspid regurgitant velocity. During ESE with a prone ergometer, the slope of the mean pulmonary arterial pressure to systemic cardiac output was 3.1 mmHg/L/min, meeting the diagnostic criteria for exercise-induced PH. The patient underwent stent implantation to treat the left pulmonary branch stenosis. Follow-up ESE demonstrated improvement, with the slope of the mean pulmonary arterial pressure to systemic cardiac output decreasing to 1.5 mmHg/L/min. These findings underscore that ESE is both feasible and effective for assessing subclinical unilateral pulmonary branch stenosis. Learning objective: Patients with congenital unilateral peripheral branch pulmonary artery stenosis usually do not have pulmonary hypertension at rest, and identifying patients who require treatment is challenging. Exercise stress echocardiography can detect latent pulmonary hypertension of the contralateral pulmonary artery in some patients, providing valuable insights for determining treatment indications and evaluating the efficacy of catheter interventions for the stenotic lesion.
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Hirono K, Hata Y, Ichimata S, Nishida N, Imamura T, Asano Y, Kuramoto Y, Tsuboi K, Takarada S, Okabe M, Nakaoka H, Ibuki K, Ozawa S, Muneuchi J, Yasuda K, Urayama K, Oka H, Miyamoto T, Baba K, Kato A, Saiki H, Kuwabara N, Harada M, Baba S, Morikawa M, Iwasaki H, Hirata Y, Ito Y, Sakaguchi H, Urata S, Toda K, Kittaka E, Okada S, Hasebe Y, Hoshino S, Fujii T, Mitsushita N, Nii M, Ogino K, Fujino M, Yoshida Y, Fukuda Y, Iwashima S, Takigiku K, Sakata Y, Inuzuka R, Maeda J, Hayabuchi Y, Fujioka T, Namiki H, Fujita S, Nishida K, Kuraoka A, Kan N, Kido S, Watanabe K, Ichida F
Scientific reports 14 ( 1 ) 30469 2024.12
Language：English Publishing type：Research paper (scientific journal) Publisher：Scientific Reports
Dilated cardiomyopathy (DCM) is a progressive myocardial disorder characterized by impaired cardiac contraction and ventricular dilation. However, some patients with DCM improve when experiencing left ventricular reverse remodeling (LVRR). Currently, the detailed association between genotypes and clinical outcomes, including LVRR, particularly among children, remains uncertain. Pediatric patients with DCM from multiple Japanese institutions recorded between 2014 and 2023 were enrolled. We identified their DCM-related genes and explored the association between gene variants and clinical outcomes, including LVRR. We included 123 pediatric patients (62 males; median age: 8 [1–51] months) and found 50 pathogenic variants in 45 (35.0%) of them. The most identified gene was MYH7 (14.0%), followed by RYR2 (12.0%) and TPM1 (8.0%). LVRR was achieved in 47.5% of these patients. The left ventricular ejection fraction remained unchanged (31.4% to 39.8%, P = 0.1913) in patients with sarcomere gene variants and in those with non-sarcomere gene variants (33.4% to 47.8%, P = 0.0522) but significantly increased in those without gene variants (33.6% to 54.1%, P < 0.0001). LVRR was not uniform across functional gene groups. Hence, an individualized gene-guided prediction approach may be adopted for children with DCM.
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Isolated Blind-Ended Major Aortic Pulmonary Collateral Artery With an Aneurysm in an Infant With Trisomy 21. Reviewed
Yonaga R, Kodama Y, Takamura K, Harada M, Moritake H
Cureus 16 ( 10 ) e72078 2024.10
Language：English Publishing type：Research paper (scientific journal)
DOI： 10.7759/cureus.72078
MISC 【 display / non-display 】
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Chida-Nagai A., Masaki N., Maeda K., Sasaki K., Sato H., Muneuchi J., Ochiai Y., Murayama H., Tahara M., Shiono A., Shinozuka A., Kono F., Machida D., Toyooka S., Sugimoto S., Nakamura K., Akagi S., Kondo M., Kasahara S., Kotani Y., Koizumi J., Oda K., Harada M., Nakajima D., Murata A., Nagata H., Yatsunami K., Kobayashi T., Matsunaga Y., Inoue T., Yamagishi H., Nakagawa N., Ohtani K., Yamamoto M., Ito Y., Hokosaki T., Kuwahara Y., Masutani S., Nomura K., Wada T., Sawada H., Abiko M., Takahashi T., Ishikawa Y., Okada S., Naitoh A., Toda T., Ando T., Masuzawa A., Hoshino S., Kawada M., Nomura Y., Ueno K., Ohashi N., Tachibana T., Cao Y., Ueda H., Yanagi S., Koide M., Mitsushita N., Higashi K., Minosaki Y., Hayashi T., Okamoto T., Kuraishi K., Ehara E., Ishida H., Horigome H., Murakami T., Takei K., Ishii T., Harada G., Hirata Y., Maeda J., Tatebe S., Ota C., Hayabuchi Y., Sakazaki H., Sasaki T., Hirono K., Suzuki S., Yasuda M., Takeda A., Sawada M., Miyaji K., Kitagawa A., Nakai Y., Kakimoto N., Agematsu K., Manabe A., Saiki Y.
Frontiers in Cardiovascular Medicine 11 1369831 2024
Language：English Publishing type：Rapid communication, short report, research note, etc. (scientific journal) Publisher：Frontiers in Cardiovascular Medicine
In the published article, an author name was incorrectly written as Madoka Sawai. The correct spelling is Madoka Sawada. The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.