Ultrasound diagnosis types of placenta previa during the late pregnancy and its relationship with the perinatal outcome / 中国医师进修杂志

ABSTRACT

Objective To investigate ultrasound diagnosis different types of placenta previa (PP)during the late pregnancy and its relationship with the perinatal outcome.Methods The clinical data of 170 pregnant women with PP and 170 healthy pregnant women who underwent ultrasound were retrospectively analyzed.PP-related risk factors were analyzed,the perinatal outcome of different types of PP were compared.Results Among PP pregnant women,complete PP was in 82 cases,partial PP was in 36 cases,marginal PP was in 32 cases,low-lying placenta was in 20 cases.The rate of age ＞ 30 years old,parity,gravidity,the number of abortion and the number of cesarean section in PP pregnant women were significantly higher than those in healthy pregnant women [59.4％(101/170) vs.40.0％(68/170),(1.5 ± 0.6) times vs.(1.3 ± 0.4) times,(2.4 ± 0.5) times vs.(1.7 ± 0.1) times,(1.7 ± 0.1) times vs.(1.1 ± 0.3) times,(1.3 ±0.3) times vs.(1.0 ± 0.1) times,P ＜ 0.01].Parity,gravidity,the number of abortion,the number of cesarean section,age,and the incidence rate of cesarean section,postpartum hemorrhage,placental adherence,premature delivery,neonatal weight ＜ 2.5 kg,5 min Apgar score ＜ 7 scores in complete PP pregnant women were significantly higher than those in partial PP,marginal PP and low-lying placenta pregnant women (P＜0.01).Conclusions Ultrasound can dynamically observe the development process of the PP.There is a certain correlation with the severity of risk factors of PP,early intervention can improve the prognosis.