title: Placenta praevia: significance in the second trimester.
abstract: A prospective study was performed on 98 patients to determine the risk of a second trimester placenta praevia remaining until term. The presence and degree of anterior or posterior praevia were scored for each patient. Follow-up data were obtained at delivery on 58 patients. A greater fraction (63.8%) of second trimester praevia was implanted posteriorly. The overall incidence of a second trimester praevia persisting until term was 8.8%.
mesh_terms: D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D010923:Placenta Previa / Q000175:diagnosis*; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011446:Prospective Studies; D014463:Ultrasonography