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There was a progressive drop in the incidence of low lying placentae through pregancy until at term, in this study, there was no placenta previa. It is considered that a repeat scan is necessary to exclude placenta previa, but not until 34 weeks gestation. Amongst the patients with early low lying placentae the incidence of antepartum haemorrhage of indeterminate type was significantly high (P&lt;0.001). A careful surveillance of these patients is therefore required. Dynamic placental migration may be the cause of this bleeding. Further study is necessary to determine the effect of early placental position on subsequent fetal development.<\/jats:p>","DOI":"10.1177\/003693308703200109","type":"journal-article","created":{"date-parts":[[2017,1,11]],"date-time":"2017-01-11T01:12:58Z","timestamp":1484097178000},"page":"19-21","source":"Crossref","is-referenced-by-count":7,"title":["Ultrasound Placental Localisation in Early Pregnancy"],"prefix":"10.1177","volume":"32","author":[{"given":"A. T.","family":"Khan","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynaecology Stirling Royal Infirmary, Stirling."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K.S.","family":"Stewart","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology Stirling Royal Infirmary, Stirling."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1987,2,1]]},"reference":[{"key":"bibr1-003693308703200109","doi-asserted-by":"crossref","unstructured":"William T. H., Mitchell R. C., Letchworth A. T. and Noble A. D. Early Ultrasound Examination In Antenatal Care. Lancet, 1977 1169\u20131171.","DOI":"10.1016\/S0140-6736(77)91553-7"},{"key":"bibr2-003693308703200109","first-page":"541","volume":"8","author":"Campbell S.","year":"1977","journal-title":"Brit. J. Hosp. 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