Harden M A, Walters M D, Valente P T
Department of Obstetrics and Gynecology, University of Texas Health Science Center, San Antonio.
Obstet Gynecol. 1990 Mar;75(3 Pt 2):523-6.
Placenta accreta is defined as a condition involving an abnormal adherence of the placenta to the myometrium. It is rare for placenta accreta to present before 20 weeks' gestation; only eight cases have been previously reported. This case report describes a first-trimester placenta accreta which presented during suction curettage for missed abortion. The major risk factors for placenta accreta are related to previous uterine trauma. Considering the rising rate of operative births in the United States, it is possible that the incidence of placenta accreta in early gestation will increase.
胎盘植入被定义为胎盘与子宫肌层异常附着的一种情况。胎盘植入在妊娠20周前出现较为罕见;此前仅有8例报告。本病例报告描述了一例在人工流产吸宫术中发现的孕早期胎盘植入。胎盘植入的主要危险因素与既往子宫创伤有关。鉴于美国手术分娩率不断上升,孕早期胎盘植入的发生率有可能增加。