{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,20]],"date-time":"2026-03-20T20:39:59Z","timestamp":1774039199625,"version":"3.50.1"},"reference-count":15,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2021,11,14]],"date-time":"2021-11-14T00:00:00Z","timestamp":1636848000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Intl J Gynecology &amp; Obste"],"published-print":{"date-parts":[[2022,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To validate the use of placenta accreta risk\u2014antepartum (PAR\u2010A) score as a predictive tool of clinical outcomes of placenta accreta spectrum (PAS).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This is a prospective study, conducted in six PAS specialized centers in six different countries. The study was conducted between October 1, 2020 and March 31, 2021. Women who were provisionally diagnosed with PAS during pregnancy were considered eligible. A machine\u2010learning\u2010based PAR\u2010A score was calculated. Diagnostic performance of the PAR\u2010A score was evaluated using a receiver operating characteristic curve, for perioperative massive blood loss and admission to intensive care unit (ClinicalTrials.gov identifier NCT04525001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of 97 eligible women, 86 were included. PAS\u2010associated massive blood loss occurred in 10 patients (11.63%). Median PAR\u2010A scores of massive blood loss in the current cohort were 8.9 (interquartile range 6.9\u201314.1). In predicting massive blood loss, the area under the curve of PAR\u2010A scores was 0.85 (95% confidence interval [CI] 0.74\u20130.95), which was not significantly different from the original cohort (<jats:italic>P<\/jats:italic>\u00a0=\u00a00.2). PAR\u2010A score prediction of intensive care unit admission was slightly higher compared with the original cohort (0.88, 95% CI 0.81\u20130.95; <jats:italic>P<\/jats:italic>\u00a0=\u00a00.06).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>PAR\u2010A score is a novel scoring system of PAS outcomes, which showed external validity based on current data.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ijgo.13993","type":"journal-article","created":{"date-parts":[[2021,10,21]],"date-time":"2021-10-21T18:51:40Z","timestamp":1634842300000},"page":"424-431","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Placenta accreta risk\u2014antepartum score in predicting clinical outcomes of placenta accreta spectrum: A multicenter validation study"],"prefix":"10.1002","volume":"158","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1062-9227","authenticated-orcid":false,"given":"Sherif A.","family":"Shazly","sequence":"first","affiliation":[{"name":"Women\u2019s services Leeds Teaching Hospitals NHS Trust  Leeds UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohamed A.","family":"Anan","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Aswan University  Aswan Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tatiana B.","family":"Makukhina","sequence":"additional","affiliation":[{"name":"Obstetrics, Gynecology, and Perinatology Department of the Faculty of Postgraduate Education Kuban State Medical University  Krasnodar Russia"},{"name":"State Budgetary Healthcare Institution \u201cRegional Clinical Hospital No. 2\u201d of the Ministry of Health of the Krasnodar Territory, Perinatal Center  Krasnodar Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rauf","family":"Melekoglu","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology School of Medicine Inonu University  Malatya Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Farhat ul A.","family":"Ahmed","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Fatima Memorial Hospital  Lahore Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pedro V.","family":"Pinto","sequence":"additional","affiliation":[{"name":"Servi\u00e7o de Ginecologia e Obstetr\u00edcia Centro Hospitalar S\u00e3o Jo\u00e3o  Porto Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hironori","family":"Takahashi","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Jichi Medical University  Tochigi Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nermeen B.","family":"Ahmed","sequence":"additional","affiliation":[{"name":"Faculty of Medicine Assiut University  Assiut Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Esraa G.","family":"Sayed","sequence":"additional","affiliation":[{"name":"Faculty of Medicine Assiut University  Assiut Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gena M.","family":"Elassall","sequence":"additional","affiliation":[{"name":"Faculty of Medicine Assiut University  Assiut Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aliaa E.","family":"Said","sequence":"additional","affiliation":[{"name":"Faculty of Medicine Assiut University  Assiut Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohamed S.","family":"Fahmy","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Aswan University  Aswan Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Diaa\u00a0M.","family":"Dawyee","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Aswan University  Aswan Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gregory A.","family":"Penzhoyan","sequence":"additional","affiliation":[{"name":"Obstetrics, Gynecology, and Perinatology Department of the Faculty of Postgraduate Education Kuban State Medical University  Krasnodar Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arpine M.","family":"Amirkhanyan","sequence":"additional","affiliation":[{"name":"Obstetrics, Gynecology, and Perinatology Department of the Faculty of Postgraduate Education Kuban State Medical University  Krasnodar Russia"},{"name":"State Budgetary Healthcare Institution \u201cRegional Clinical Hospital No. 2\u201d of the Ministry of Health of the Krasnodar Territory, Perinatal Center  Krasnodar Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ercan","family":"Y\u0131lmaz","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology School of Medicine Inonu University  Malatya 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