Clinical Analysis On 22 Cases Of Embryo Reduction In Multifetal Pregnancy By Three Methods Respectively During The First-trimester

ctobjective:To investigate the appreciate opportunity, security and clinical outcome of the three early multifetal reduction methods under the guidance of transvaginal ultrasonographymethods:8 cases by embryo aspiration at 6 to 7 weeks of gestation,8 cases by mechanical destroyings of embryos at 8 to 9 weeks of gestation,6 cases by drug injection directly to the fetus'heart at 9 to 11 weeks of gestation.observe the bellyache,vaginal hemorrhage infection rate and preterm labor rate, Pregnancy Outcome。Outcome:all cases were succeed in one time,after operation,no infected,6 cases of drug injection directly to the fetus'heart 1 case preterm abortion,3 cases term delivery,2 cases premature delivery;8 cases of mechanical destroyings of embryos 1 case late abortion,4 cases term delivery,3 cases premature delivery;8 cases of embryo aspiration 1 case late abortion,5 cases term delivery,2 cases premature delivery.7cases of premature delivery all delivered at>35 weeks of gestationconclude:three methods operated in different timing in the first-trimester are relatively effect,safe and convenient,can acquire satisfactory pregnancy outcome.