{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,17]],"date-time":"2026-10-17T15:33:15Z","timestamp":1792251195530,"version":"4.4.0"},"reference-count":11,"publisher":"BMJ","issue":"3","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Open"],"accepted":{"date-parts":[[2016,3,2]]},"published-print":{"date-parts":[[2016,3]]},"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To clarify the problems related to maternal deaths in Japan, including the diseases themselves, causes, treatments and the hospital or regional systems.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>Descriptive study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Setting<\/jats:title>\n                    <jats:p>Maternal death registration system established by the Japan Association of Obstetricians and Gynecologists (JAOG).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Participants<\/jats:title>\n                    <jats:p>Women who died during pregnancy or within a year after delivery, from 2010 to 2014, throughout Japan (N=213).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Main outcome measures<\/jats:title>\n                    <jats:p>The preventability and problems in each maternal death.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Maternal deaths were frequently caused by obstetric haemorrhage (23%), brain disease (16%), amniotic fluid embolism (12%), cardiovascular disease (8%) and pulmonary disease (8%). The Committee considered that it was impossible to prevent death in 51% of the cases, whereas they considered prevention in 26%, 15% and 7% of the cases to be slightly, moderately and highly possible, respectively. It was difficult to prevent maternal deaths due to amniotic fluid embolism and brain disease. In contrast, half of the deaths due to obstetric haemorrhage were considered preventable, because the peak duration between the initial symptoms and initial cardiopulmonary arrest was 1\u20133\u2005h.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>A range of measures, including individual education and the construction of good relationships among regional hospitals, should be established in the near future, to improve primary care for patients with maternal haemorrhage and to save the lives of mothers in Japan.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjopen-2015-010304","type":"journal-article","created":{"date-parts":[[2016,3,21]],"date-time":"2016-03-21T23:37:00Z","timestamp":1458603420000},"page":"e010304","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":119,"title":["Current status of pregnancy-related maternal mortality in Japan: a report from the Maternal Death Exploratory Committee in Japan"],"prefix":"10.1136","volume":"6","author":[{"given":"Junichi","family":"Hasegawa","sequence":"first","affiliation":[{"name":"St. Marianna University School of Medicine, Kanagawa, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akihiko","family":"Sekizawa","sequence":"additional","affiliation":[{"name":"Showa University School of Medicine, Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroaki","family":"Tanaka","sequence":"additional","affiliation":[{"name":"Mie University School of Medicine, Mie, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shinji","family":"Katsuragi","sequence":"additional","affiliation":[{"name":"Sakakibara Heart Institute, Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kazuhiro","family":"Osato","sequence":"additional","affiliation":[{"name":"Mie University School of Medicine, Mie, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takeshi","family":"Murakoshi","sequence":"additional","affiliation":[{"name":"Seirei Hamamatsu General Hospital, Shizuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masahiko","family":"Nakata","sequence":"additional","affiliation":[{"name":"Toho University, Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masamitsu","family":"Nakamura","sequence":"additional","affiliation":[{"name":"Showa University School of Medicine, Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun","family":"Yoshimatsu","sequence":"additional","affiliation":[{"name":"National Cerebral and Cardiovascular Center, Osaka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomohito","family":"Sadahiro","sequence":"additional","affiliation":[{"name":"Tokyo Women's Medical University Yachiyo Medical Center, Chiba, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Naohiro","family":"Kanayama","sequence":"additional","affiliation":[{"name":"Hamamatsu University School of Medicine, Shizuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Isamu","family":"Ishiwata","sequence":"additional","affiliation":[{"name":"Ishiwata Obstetrics and Gynecology Hospital, Ibaraki, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katsuyuki","family":"Kinoshita","sequence":"additional","affiliation":[{"name":"Seijyo Kinoshita Hospital, Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomoaki","family":"Ikeda","sequence":"additional","affiliation":[{"name":"Mie University School of Medicine, Mie, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2016,3,21]]},"reference":[{"key":"2025121508262589000_6.3.e010304.1","unstructured":"Kamiya K , ed. 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