{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T16:41:22Z","timestamp":1785775282298,"version":"3.56.0"},"reference-count":26,"publisher":"Georg Thieme Verlag KG","issue":"S 01","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Perinatol"],"published-print":{"date-parts":[[2021,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>\n          Objective\u2003This study was aimed to describe continuous labor curves, including second stage, based on fetal head station.<\/jats:p><jats:p>\n          Study Design\u2003We performed a prospective multicenter cohort study. The inclusion criteria were women with singleton uncomplicated cephalic term pregnancies in labor, who delivered vaginally. We used a device that combines ultrasound imaging with position-tracking technology to monitor the head station noninvasively throughout labor. We collected data on demographics, labor parameters, and delivery and neonatal outcomes.<\/jats:p><jats:p>\n          Results\u2003A total of 613 women delivered vaginally, 327 (53.3%) were nulliparous, while 286 (46.7%) were multiparous. Time to delivery (TTD) diminished progressively with descent of the fetal head. When the head is engaged, the labor curve of multiparous women demonstrated a more prominent downward shift in curve as compared with nulliparous women. When comparing multipara and nullipara at engagement level, the median TTD was 1 and 1.62\u2009hours, respectively. In 95% of women with unengaged head during the second stage, TTD of nulliparous and multiparous women were less than 3.8 and 3\u2009hours, respectively.<\/jats:p><jats:p>\n          Conclusion\u2003While current labor curves end at full dilatation, the described curves were developed throughout stages 1 and 2 of labor. The TTD, according to the station curves, shows an acceleration of labor, once passed the engagement level, especially in multiparous women.<\/jats:p>","DOI":"10.1055\/s-0040-1702989","type":"journal-article","created":{"date-parts":[[2020,3,3]],"date-time":"2020-03-03T00:01:20Z","timestamp":1583193680000},"page":"e14-e20","source":"Crossref","is-referenced-by-count":10,"special_numbering":"S","title":["A Novel Partogram for Stages 1 and 2 of Labor Based on Fetal Head Station Measured by Ultrasound: A Prospective Multicenter Cohort Study"],"prefix":"10.1055","volume":"38","author":[{"given":"Shoshana","family":"Haberman","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Maimonides Medical Center, Brooklyn, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fouad","family":"Atallah","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Maimonides Medical Center, Brooklyn, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacky","family":"Nizard","sequence":"additional","affiliation":[{"name":"Service de gyn\u00e9cologie obst\u00e9trique, Groupe hospitalier Piti\u00e9-Salp\u00eatri\u00e8re, Assistance Publique-H\u00f4pitaux de Paris, Sorbonne Universit\u00e9s, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olive","family":"Buhule","sequence":"additional","affiliation":[{"name":"National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul","family":"Albert","sequence":"additional","affiliation":[{"name":"National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ron","family":"Gonen","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Bnai Zion Medical Center, Technion, Israel Institute of Technology, Israel"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yves","family":"Ville","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Fetal Medicine, H\u00f4pital Necker-Enfants-Malade, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoav","family":"Paltieli","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Bnai Zion Medical Center, Technion, Israel Institute of Technology, 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