Objective To study the transfer of ropivacaine across the single cotyledon of the term human placenta and the effects of maternal hypoproteinemia and fetal acidemia on the transfer.

• 目的 研究罗哌卡因经离体人胎盘单绒毛叶的转运及母体低蛋白血症和胎儿酸血症对转运的影响。