{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,2]],"date-time":"2026-11-02T21:09:54Z","timestamp":1793653794826,"version":"4.5.1"},"reference-count":18,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2018,4,25]],"date-time":"2018-04-25T00:00:00Z","timestamp":1524614400000},"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":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[2018,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Induction of labor is a common intervention. The objective was to investigate whether larger Foley catheter volumes for labor induction decrease the total time from induction to delivery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and methods<\/jats:title>\n                    <jats:p>\n                      Randomized controlled trials comparing larger single\u2010balloon volumes (60\u201380\n                      <jats:styled-content style=\"fixed-case\">mL<\/jats:styled-content>\n                      ) during Foley catheter cervical ripening with usual volume (30\n                      <jats:styled-content style=\"fixed-case\">mL<\/jats:styled-content>\n                      ) in women undergoing labor induction were identified by searching electronic databases (\n                      <jats:styled-content style=\"fixed-case\">MEDLINE<\/jats:styled-content>\n                      , Scopus, ClinicalTrials.gov,\n                      <jats:styled-content style=\"fixed-case\">PROSPERO<\/jats:styled-content>\n                      ,\n                      <jats:styled-content style=\"fixed-case\">EMBASE<\/jats:styled-content>\n                      , Scielo and the Cochrane Central Register of Controlled Trials) from inception through 2017. The primary outcome was mean time from induction to delivery in hours. Secondary outcomes included time from induction to vaginal delivery, delivery within 24 h, time to Foley expulsion, cesarean section, chorioamnionitis, epidural use, hemorrhage, meconium staining, and neonatal intensive care unit admission. Meta\u2010analysis was performed using the random effects model of DerSimonian and Laird (\n                      <jats:styled-content style=\"fixed-case\">PROSPERO CRD<\/jats:styled-content>\n                      42017058885).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Seven randomized controlled trials including 1432 singleton gestations were included in the systematic review. Women randomized to larger volumes of balloon had a significantly shorter time from induction to delivery (mean difference 1.97 h, 95%\n                      <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>\n                      \u22123.88 to \u22120.06). There was no difference in cesarean section between groups (16 vs. 18%, relative risk 0.84, 95%\n                      <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>\n                      0.6\u20131.17). A larger balloon volume was associated with a nonsignificant decrease in time from induction to delivery in multiparous (mean difference 2.67 h, 95%\n                      <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>\n                      \u22126.1 to 0.76) and nulliparous women (mean difference 1.82 h, 95%\n                      <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>\n                      \u22124.16 to 0.53).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>\n                      Balloon volumes larger than 30\n                      <jats:styled-content style=\"fixed-case\">mL<\/jats:styled-content>\n                      during Foley catheter induction reduce total time to delivery by approximately 2 h.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/aogs.13353","type":"journal-article","created":{"date-parts":[[2018,4,2]],"date-time":"2018-04-02T02:37:07Z","timestamp":1522636627000},"page":"1051-1060","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":63,"title":["Increased single\u2010balloon Foley catheter volume for induction of labor and time to delivery: a systematic review and meta\u2010analysis"],"prefix":"10.1111","volume":"97","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2692-6085","authenticated-orcid":false,"given":"Corina N.","family":"Schoen","sequence":"first","affiliation":[{"name":"Division of Maternal\u2010Fetal Medicine Department of Obstetrics and Gynecology University of Massachusetts\u2010Baystate Springfield MA 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