{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T09:12:15Z","timestamp":1790845935196,"version":"4.1.0"},"reference-count":7,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2014,4,21]],"date-time":"2014-04-21T00:00:00Z","timestamp":1398038400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Obstet and Gynaecol"],"published-print":{"date-parts":[[2014,5]]},"abstract":"Abstract<\/jats:title>\n \n Aim<\/jats:title>\n \n In placenta previa (\n PP<\/jats:styled-content>\n ), anterior placentation, compared with posterior placentation, is reported to more frequently cause massive hemorrhage during cesarean section (\n CS<\/jats:styled-content>\n ). Whether this is due to the high incidence of placenta accreta, previous\n CS<\/jats:styled-content>\n , or a transplacental approach in anterior placenta is unclear. We attempted to clarify this issue.\n <\/jats:p>\n <\/jats:sec>\n \n Material and Methods<\/jats:title>\n \n We retrospectively analyzed the relation between the bleeding amount during\n CS<\/jats:styled-content>\n for\n PP<\/jats:styled-content>\n and various factors that may cause massive hemorrhage (>2400\u2009m\n L<\/jats:styled-content>\n ) (\n n<\/jats:italic>\n \u2009=\u2009205) in a tertiary center. If the preoperatively ultrasound\u2010measured distance from the internal cervical ostium to the placental edge was longer in the uterine anterior wall than in the posterior wall, we defined it as anterior previa, and vice versa.\n <\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n Patients with accreta, previous\n CS<\/jats:styled-content>\n , total previa, and anterior placentation bled significantly more than their counterparts. Multivariate logistic regression analysis showed that accreta (odds ratio [\n OR<\/jats:styled-content>\n ] 12.6), previous\n CS<\/jats:styled-content>\n (\n OR<\/jats:styled-content>\n 4.7), total previa (\n OR<\/jats:styled-content>\n 4.1), and anterior placentation (\n OR<\/jats:styled-content>\n 3.5) were independent risk factors of massive hemorrhage.\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions<\/jats:title>\n \n Anterior placentation, namely, the placenta with a longer os\u2010placental edge distance in the anterior wall than in the posterior wall, was a risk of massive hemorrhage during\n CS<\/jats:styled-content>\n for\n PP<\/jats:styled-content>\n .\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1111\/jog.12340","type":"journal-article","created":{"date-parts":[[2014,4,21]],"date-time":"2014-04-21T03:39:52Z","timestamp":1398051592000},"page":"1243-1248","source":"Crossref","is-referenced-by-count":56,"title":["Anterior placentation as a risk factor for massive hemorrhage during cesarean section in patients with placenta previa"],"prefix":"10.1111","volume":"40","author":[{"given":"Yosuke","family":"Baba","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology Jichi Medical University Tochigi Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shigeki","family":"Matsubara","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Jichi Medical University Tochigi Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akihide","family":"Ohkuchi","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Jichi Medical University Tochigi Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rie","family":"Usui","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Jichi Medical University Tochigi Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomoyuki","family":"Kuwata","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Jichi Medical University Tochigi Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hirotada","family":"Suzuki","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Jichi Medical University Tochigi Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hironori","family":"Takahashi","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Jichi Medical University Tochigi Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mitsuaki","family":"Suzuki","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Jichi Medical University Tochigi Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2014,4,21]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1447-0756.2011.01669.x"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.6426"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.7150\/ijms.8.439"},{"key":"e_1_2_6_5_1","first-page":"226","volume-title":"Glossary of Obstetrics and Gynecology","author":"Japan Society of Obstetrics and Gynecology","year":"2008"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1447-0756.2010.01446.x"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/aogs.12074"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1159\/000064695"}],"container-title":["Journal of Obstetrics and Gynaecology Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fjog.12340","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fjog.12340","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jog.12340","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,2]],"date-time":"2023-10-02T17:32:03Z","timestamp":1696267923000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1111\/jog.12340"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,4,21]]},"references-count":7,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2014,5]]}},"alternative-id":["10.1111\/jog.12340"],"URL":"https:\/\/doi.org\/10.1111\/jog.12340","archive":["Portico"],"relation":{},"ISSN":["1341-8076","1447-0756"],"issn-type":[{"value":"1341-8076","type":"print"},{"value":"1447-0756","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,4,21]]}}}