{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T21:59:44Z","timestamp":1790891984560,"version":"4.1.0"},"reference-count":19,"publisher":"Federa\u00e7\u00e3o das Associa\u00e7\u00f5es de Ginecologia e Obstetr\u00edcia","issue":"04","license":[{"start":{"date-parts":[[2017,4,3]],"date-time":"2017-04-03T00:00:00Z","timestamp":1491177600000},"content-version":"vor","delay-in-days":2,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev Bras Ginecol Obstet"],"published-print":{"date-parts":[[2017,4]]},"abstract":"<jats:p>\n            Purpose\u2003Our aim was to describe the changes observed by ultrasonography in uterine dimensions during the early puerperium among women who experienced an uncomplicated puerperium. Additionally, the influence of parity, mode of delivery, breastfeeding and birth weight on uterine involution was evaluated.<\/jats:p><jats:p>\n            Methods\u2003Ninety-one patients underwent an ultrasound examination on days 1 (D1), 2 (D2) and 7 (D7) of the postpartum period. The longitudinal, anteroposterior and transverse uterine diameters were measured, and the uterine volume was calculated by the formula: longitudinal diameter (LD) X anteroposterior diameter (APD) X transverse diameter (TD) X 0.45. The thickness and length of the uterine cavity were also measured.<\/jats:p><jats:p>\n            Results\u2003The uterine volume and the LD, APD and TD decreased by 44.8%, 20.9%, 11.8% and 20.0% respectively. The uterine cavity thickness was reduced by 23%, and the length of the cavity was reduced by 27.2% on D7. Uterine involution was correlated inversely with parity when the day of the postpartum period was not taken into account (p\u2009=\u20090.01). However, when the uterine involution was correlated to parity separately, with D1, D2 or D3, no correlations were found. A significant difference occurred at D2, when it was found that the uterus had a smaller volume following cesarean section compared with vaginal delivery (p\u2009=\u20090.04). The high birth weight and breastfeeding were significantly related to uterine involution (p\u2009\u2264\u20090.01 and p\u2009=\u20090.04).<\/jats:p><jats:p>\n            Conclusion\u2003The sonographic evaluation of the uterus in the early puerperium should consider birth weight, breastfeeding and parity, as well as the delivery route on D2, to identify abnormalities related to uterine involution.<\/jats:p>","DOI":"10.1055\/s-0037-1601418","type":"journal-article","created":{"date-parts":[[2017,4,3]],"date-time":"2017-04-03T22:50:42Z","timestamp":1491259842000},"page":"149-154","source":"Crossref","is-referenced-by-count":14,"title":["Ultrasonographic Evaluation of Uterine Involution in the Early Puerperium"],"prefix":"10.61622","volume":"39","author":[{"given":"Juliana Hocevar","family":"Kristoschek","sequence":"first","affiliation":[{"name":"Medical Sciences Post Graduation, Universidade Federal Fluminense, Niter\u00f3i, RJ, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fernanda Campos da","family":"Silva","sequence":"first","affiliation":[{"name":"Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rio de Janeiro, RJ, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guillermo Coca","family":"Vellarde","sequence":"first","affiliation":[{"name":"Medical Sciences Post Graduation, Universidade Federal Fluminense, Niter\u00f3i, RJ, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Renato Augusto","family":"Moreira de S\u00e1","sequence":"additional","affiliation":[{"name":"Medical Sciences Post Graduation, Universidade Federal Fluminense, Niter\u00f3i, RJ, Brazil"},{"name":"Clinical Research Unit, Instituto Fernandes Figueira, Fiocruz, Rio de Janeiro, RJ, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"47794","published-online":{"date-parts":[[2017,4,3]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"404","DOI":"10.1136\/bmj.4.5732.404","article-title":"Fallacy of the fundal height","volume":"4","author":"J M Beazley","year":"1970","journal-title":"BMJ"},{"key":"ref2","doi-asserted-by":"crossref","first-page":"1188","DOI":"10.1016\/S0140-6736(58)91905-6","article-title":"Investigation of abdominal masses by pulsed ultrasound","volume":"1","author":"I Donald","year":"1958","journal-title":"Lancet"},{"key":"ref3","volume-title":"Curva da involu\u00e7\u00e3o uterina no puerp\u00e9rio normal por ultrassonografia [disserta\u00e7\u00e3o]","author":"C M Almeida","year":"2002"},{"issue":"03","key":"ref4","first-page":"175","article-title":"[Ultrasonographic evaluation of uterine volume variations]","volume":"23","author":"F Mauad Filho","year":"2001","journal-title":"Rev Bras Ginecol 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Gynecol"},{"issue":"06","key":"ref18","doi-asserted-by":"crossref","first-page":"727","DOI":"10.1002\/uog.11069","article-title":"Postpartum uterine involution: sonographic changes in the endometrium between 2 and 6 weeks postpartum related to delivery mode and gestational age at delivery","volume":"39","author":"H S Bae","year":"2012","journal-title":"Ultrasound Obstet Gynecol"},{"issue":"01","key":"ref19","first-page":"12","article-title":"Clinical and ultrasonographic study of uterine involution in postpartum physiology","volume":"88","author":"P Buisson","year":"1993","journal-title":"Rev Fr Gynecol Obstet"}],"container-title":["Revista Brasileira de Ginecologia e Obstetr\u00edcia \/ RBGO Gynecology and 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