{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T23:42:01Z","timestamp":1790811721422,"version":"4.1.0"},"reference-count":23,"publisher":"Oxford University Press (OUP)","issue":"1102","license":[{"start":{"date-parts":[[2019,7,23]],"date-time":"2019-07-23T00:00:00Z","timestamp":1563840000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2019,10,1]]},"abstract":"<jats:sec>\n                  <jats:title>Objective:<\/jats:title>\n                  <jats:p>We evaluated the risk factors for massive bleeding based on angiographic findings in patients with placenta previa and accreta who underwent balloon occlusion of the internal iliac artery (BOIA) during cesarean section.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods:<\/jats:title>\n                  <jats:p>We performed a retrospective analysis using the clinical records of 42 patients with placenta previa and accreta who underwent BOIA during cesarean section between 2006 and 2017 in Gunma university hospital. We reviewed incidence of collateral arteries to the uterus on the initial aortography. We evaluated the visualization of the ovarian artery arising directly from the abdominal aorta, round ligament artery arising from the external iliac artery\/inferior epigastric artery, and the iliolumbar artery. In addition, the clinical characteristics were reviewed. Patients with an estimated blood loss during delivery of &amp;gt;2500\u2009ml, &amp;gt;4 packed red blood cell transfusions, uterine artery embolization after delivery, or hysterectomy were defined as the massive bleeding group. We compared between the massive and non-massive bleeding groups.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results:<\/jats:title>\n                  <jats:p>20 patients (48%) had a massive bleeding. No procedure-related severe complications were observed. The massive and non-massive bleeding groups differed in terms of operation time (p &amp;lt; 0.001), hysterectomy (p &amp;lt; 0.001), post-operative hospital stay (p &amp;lt; 0.05), and visualization of round ligament arteries to the uterus [15\/20 (75%) patients, p &amp;lt; 0.01].<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion:<\/jats:title>\n                  <jats:p>The incidence of collateral blood supply from a round ligament artery to the uterus may be a risk factor for massive bleeding in patients with placenta previa and accreta who have undergone BOIA during cesarean section.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Advances in knowledge:<\/jats:title>\n                  <jats:p>Angiographic visualization of collateral circulation from the round ligament artery to the uterus may be a risk factor for massive bleeding in patients with placenta previa and accreta who have undergone BOIA during cesarean section.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1259\/bjr.20190127","type":"journal-article","created":{"date-parts":[[2019,7,18]],"date-time":"2019-07-18T10:37:22Z","timestamp":1563446242000},"source":"Crossref","is-referenced-by-count":16,"title":["Risk factors for massive bleeding based on angiographic findings in patients with placenta previa and accreta who underwent balloon occlusion of the internal iliac artery during cesarean section"],"prefix":"10.1093","volume":"92","author":[{"given":"Hiroyuki","family":"Tokue","sequence":"first","affiliation":[{"name":"Department of Diagnostic and Interventional Radiology, Gunma University Hospital , Gunma, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Azusa","family":"Tokue","sequence":"additional","affiliation":[{"name":"Department of Diagnostic and Interventional Radiology, Gunma University Hospital , Gunma, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshito","family":"Tsushima","sequence":"additional","affiliation":[{"name":"Department of Diagnostic and Interventional Radiology, Gunma University Hospital , Gunma, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takeshi","family":"Kameda","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Gunma University Hospital , Gunma, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2019,7,23]]},"reference":[{"key":"2024050214525810400_b1","first-page":"799","article-title":"Risk factors for placenta accreta: a large prospective cohort","volume":"31","author":"Bowman","year":"2014","journal-title":"Am J Perinatol"},{"key":"2024050214525810400_b2","doi-asserted-by":"crossref","first-page":"219","DOI":"10.1016\/j.jvir.2017.08.015","article-title":"Prophylactic internal iliac artery occlusion balloon placement to reduce operative blood loss in patients with invasive placenta","volume":"29","author":"Picel","year":"2018","journal-title":"Journal of Vascular and Interventional Radiology"},{"key":"2024050214525810400_b3","doi-asserted-by":"crossref","DOI":"10.1097\/MD.0000000000008276","article-title":"A prospective observational study evaluating the efficacy of prophylactic internal iliac artery balloon catheterization in the management of placenta previa\u2013accreta","volume":"96","author":"Fan","year":"2017","journal-title":"Medicine"},{"key":"2024050214525810400_b4","doi-asserted-by":"crossref","first-page":"456","DOI":"10.1111\/jog.13550","article-title":"Study of the utility and problems of common iliac artery balloon occlusion for placenta previa with accreta","volume":"44","author":"Ono","year":"2018","journal-title":"J. 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