{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,25]],"date-time":"2026-04-25T10:38:48Z","timestamp":1777113528407,"version":"3.51.4"},"reference-count":17,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T00:00:00Z","timestamp":1745366400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T00:00:00Z","timestamp":1745366400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100003478","name":"Ministry of Health, Labour and Welfare","doi-asserted-by":"publisher","award":["23AA2003"],"award-info":[{"award-number":["23AA2003"]}],"id":[{"id":"10.13039\/501100003478","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003478","name":"Ministry of Health, Labour and Welfare","doi-asserted-by":"publisher","award":["22AA2003"],"award-info":[{"award-number":["22AA2003"]}],"id":[{"id":"10.13039\/501100003478","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Intl J Gynecology &amp;amp; Obste"],"published-print":{"date-parts":[[2025,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>This study was performed to evaluate the association between hospital surgical volume and in\u2010hospital outcomes among patients undergoing peripartum hysterectomy in Japan.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A retrospective cohort study was conducted using data from the Diagnostic Procedure Combination database from July 2010 to March 2022. Patients who underwent peripartum hysterectomy were identified, and hospitals were categorized into low\u2010, medium\u2010, and high\u2010volume groups based on annual surgical volume. Multivariable analyses, adjusted for patient\u2010 and hospital\u2010level variables, were performed to assess associations between surgical volume and in\u2010hospital outcomes, including maternal death, reoperation, surgical complications, transfusion volumes, operative time, and length of postoperative stay. A subgroup analysis was conducted focusing on patients with placenta accreta spectrum.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>In total, 2819 patients were included in the final cohort. The high\u2010volume group had a higher prevalence of placenta previa and placenta accreta spectrum, while the low\u2010volume group had more cases of uterine rupture. After multivariable adjustment, no significant differences were found in all in\u2010hospital outcomes. In the subgroup analysis, longer operative times were observed in the high\u2010volume group for patients with placenta accreta spectrum than in the low\u2010volume group, but no other significant differences in outcomes were detected.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Hospital surgical volume was not found to be significantly associated with in\u2010hospital outcomes for peripartum hysterectomy. This result indicates that the perinatal healthcare system in Japan may contribute to maintaining consistent care quality across various institutions.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/ijgo.70169","type":"journal-article","created":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T04:48:09Z","timestamp":1745383689000},"page":"217-223","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Impact of hospital surgical volume on in\u2010hospital outcomes of peripartum hysterectomy: A nationwide retrospective cohort study"],"prefix":"10.1002","volume":"171","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5245-2311","authenticated-orcid":false,"given":"Shunya","family":"Sugai","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology Niigata University Medical and Dental Hospital  Niigata Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yusuke","family":"Sasabuchi","sequence":"additional","affiliation":[{"name":"Department of Real\u2010World Evidence Graduate School of Medicine, The University of Tokyo  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hideo","family":"Yasunaga","sequence":"additional","affiliation":[{"name":"Department of Clinical Epidemiology and Health Economics School of Public Health, The University of Tokyo  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuya","family":"Kimura","sequence":"additional","affiliation":[{"name":"Department of Health Services Research Graduate School of Medicine, The University of Tokyo  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroki","family":"Matsui","sequence":"additional","affiliation":[{"name":"Department of Clinical Epidemiology and Health Economics School of Public Health, The University of Tokyo  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kiyohide","family":"Fushimi","sequence":"additional","affiliation":[{"name":"Department of Health Policy and Informatics Institute of Science, Tokyo Graduate School of Medical and Dental Sciences  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kosuke","family":"Yoshihara","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Niigata University Medical and Dental Hospital  Niigata Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2050-5543","authenticated-orcid":false,"given":"Koji","family":"Nishijima","sequence":"additional","affiliation":[{"name":"General Center for Perinatal, Maternal and Neonatal Medicine Niigata University Medical and Dental Hospital  Niigata Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,4,23]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0000000000005022"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2016.06.032"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2014.08.019"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0b013e3181df94e8"},{"key":"e_1_2_11_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/1471-0528.16993"},{"key":"e_1_2_11_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(16)31470-2"},{"key":"e_1_2_11_8_1","first-page":"1","article-title":"Maternal mortality in the United States: changes in coding, publication, and data release, 2018","volume":"69","author":"Hoyert DL","year":"2020","journal-title":"Natl Vital Stat Rep"},{"key":"e_1_2_11_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.healthpol.2024.105154"},{"key":"e_1_2_11_10_1","doi-asserted-by":"publisher","DOI":"10.37737\/ace.1.3_76"},{"key":"e_1_2_11_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/ijgo.15605"},{"key":"e_1_2_11_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.je.2016.09.009"},{"key":"e_1_2_11_13_1","doi-asserted-by":"publisher","DOI":"10.1080\/14767058.2019.1684471"},{"key":"e_1_2_11_14_1","doi-asserted-by":"publisher","DOI":"10.1111\/jog.15438"},{"key":"e_1_2_11_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajogmf.2023.101120"},{"key":"e_1_2_11_16_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0000000000005662"},{"key":"e_1_2_11_17_1","doi-asserted-by":"publisher","DOI":"10.1111\/jog.15230"},{"key":"e_1_2_11_18_1","first-page":"234","article-title":"The perinatal care system in Japan","volume":"54","author":"Unno N","year":"2011","journal-title":"Jpn Med Assoc J"}],"container-title":["International Journal of Gynecology &amp; 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