{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,25]],"date-time":"2026-07-25T04:08:16Z","timestamp":1784952496038,"version":"3.55.0"},"reference-count":18,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2023,3,7]],"date-time":"2023-03-07T00:00:00Z","timestamp":1678147200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Ultrasound Medicine"],"published-print":{"date-parts":[[2023,8]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To assess the diameter change of hygroscopic rod dilation during 12\u00a0hours of cervical ripening.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This was an observational, prospective study of term women undergoing labor induction with a bishop score\u2009\u2264 6. Women were allocated into two groups (soaked gauze or no gauze) stratified by parity. Using transvaginal ultrasound, maximal rod diameters were obtained in a longitudinal plane. Measurements were taken at four pre\u2010specified time points (3, 6, 8, and 12\u00a0hours). All rods were removed at 12\u00a0hours from insertion. Patient satisfaction scores between the groups were assessed. To evaluate if measures were significantly different among the four time points, a generalized linear model was used. Independent <jats:italic>t<\/jats:italic>\u2010tests were used to compare mean rod diameter values and pain measures between the two groups. Fisher Exact tests were used to evaluate categorical satisfaction measures.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Forty\u2010four women were recruited with a total of 178 hygroscopic rods placed. Mean rod diameters (mm) were significantly different among the four time periods (3\u2009hour: 7.9\u2009mm [SD 0.9]; 6\u2009hour: 9.4\u2009mm [SD 0.9]; 8\u2009hour: 10.0\u2009mm [SD 0.9]; 12\u00a0hour: 10.9\u2009mm [SD 0.8]; <jats:italic>P<\/jats:italic>\u2010value &lt;.001). After stratifying by the use of gauze, there was no difference in rod diameters at 3, 6, 8, and 12\u00a0hours respectively. There was no difference in patient satisfaction scores between the two groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The majority of hygroscopic rod dilation occurs within the first 8\u2009hours of cervical ripening. Placement of saturated gauze does not accelerate rod dilation.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jum.16207","type":"journal-article","created":{"date-parts":[[2023,3,7]],"date-time":"2023-03-07T12:59:40Z","timestamp":1678193980000},"page":"1851-1858","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Longitudinal Ultrasound Evaluation of <scp>Dilapan\u2010S<\/scp> During Cervical Ripening"],"prefix":"10.1002","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3022-7789","authenticated-orcid":false,"given":"Elizabeth","family":"Seagraves","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology Beaumont Health  Royal Oak Michigan USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tetsuya","family":"Kawakita","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Eastern Virginia Medical School  Norfolk Virginia USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marilyn","family":"Bartholmae","sequence":"additional","affiliation":[{"name":"Healthcare Analytics and Delivery Science Institute Eastern Virginia Medical School  Norfolk Virginia USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tracey","family":"DeYoung","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Eastern Virginia Medical School  Norfolk Virginia USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jerri","family":"Waller","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Eastern Virginia Medical School  Norfolk Virginia USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carole","family":"Barake","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology University of Texas Medical Branch  Galveston Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alfred","family":"Abuhamad","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Eastern Virginia Medical School  Norfolk Virginia USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,3,7]]},"reference":[{"key":"e_1_2_7_2_1","volume-title":"National Vital Statistics Reports","author":"Center for Disease Control and Prevention","year":"2018"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0b013e3181b48ef5"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ogc.2017.08.011"},{"key":"e_1_2_7_5_1","first-page":"1","article-title":"A randomized controlled trial of Dilapan\u2010S vs Foley balloon for preinduction cervical ripening (DILAFOL trial)","volume":"220","author":"Saad AF","year":"2019","journal-title":"Am J Obstet Gynecol"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0b013e31827e5dca"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0000000000002403"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0000000000001778"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.2147\/IJWH.S25551"},{"key":"e_1_2_7_10_1","unstructured":"Dilapan\u2010S Product Guide.https:\/\/www.dilapans.com\/pdf\/Dilapan-S%20Product%20Guide.pdf. 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