From low-lying implantation to placenta praevia: a longitudinal ultrasonic assessment

Journal of Obstetrics and Gynaecology : the Journal of the Institute of Obstetrics and Gynaecology
C M ChamaJ D Usman

Abstract

A study of 895 consecutive pregnant women studied by transabdominal ultrasound scan showed an incidence of 14.6% of low-lying placenta at 12-14 weeks' gestation. Longitudinal follow-up of those with low-lying placenta showed that 85% of them had normally situated placenta at term. However, for those with partial or total placenta praevia at 30 weeks' gestation, 60% and 75%, respectively, persisted as major placenta praevia at term. A total of 45% of those with low-lying placenta at recruitment had threatened abortion while 15.7% had antepartum haemorrhage. The caesarean section rate was as high as 26% among the study population compared with 8.4% among the general population (P < 0.005). It is recommended that all antenatal women should have at least one ultrasound scan in the second or third trimester for placental localisation. Those found to have major placenta praevia in the third trimester should be closely followed-up.

References

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Citations

May 20, 2008·Maternal and Child Health Journal·Nedra S WhiteheadLetitia Williams
Nov 24, 2006·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·E C OliveC S Algert
Mar 25, 2014·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Howard T HellerCarol B Benson
Feb 7, 2014·Obstetrics and Gynecology·Hayley S QuantNadav Schwartz
Jan 29, 2019·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Souhail AlouiniAntoine Valéry

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