No abstract

Virtual poster abstracts confirmed at 37 weeks surgically and histologically. Thus, prognostic value for diagnosis of low implantation of gestation sac by early US in women with Caesarean scar for prognosis of PAS was: Se = 83,3% %, Sp = 99,8%%, positive PV = 83,3%, negative PV = 99,8%. The limitations of our study were: inability to confirm the placenta accreta diagnosis histologically, if pregnancy was terminated in 1st trimester, inability to revise US images from electronic database, as only descriptions of findings were available. Many patients were excluded from our study because US protocols did not state the GSP. Conclusions: Early US examination aids in determining pregnancies with high risk for PAS in women with Caesarean scar. At the same time, absence of standard US protocol limits possibilities for prognosis accuracy evaluation in prospective studies.

79 pregnant women were diagnosed at the 2nd or 3rd trimester with placenta previa and followed at this hospital till birth. 59% were multiparous, and 51% of these had at least one prior Caesarean section. 15 pregnancies resulted from IVF treatment. There were 3 dichorionic/diamniotic twin pregnancies, with placenta previa in one of the fetuses. There were 5 cases of placenta previa with placenta accreta spectrum, one diagnosed intrapartum. The mean age of the women was 35, and the mean gestational age at birth was 36,43 weeks. The outcome was good for most women, with a mean of 3,6 days hospitalised after birth. 32% had post-partum anemia, 41% of which needed blood transfusion. Hysterectomy was performed in 4 of the women with placenta accreta spectrum, and one woman with isolated placenta previa needed a Bakri balloon after the Caesarean section due to uterine atony. Conclusions: Advanced maternal age, multiparity, previous Caesarean section and IVF treatments were associated risk factors, with the majority of women being multiparous. The outcome for most women was good, and the most common consequence was postpartum anemia. VP44.19Placenta accreta spectrum intraoperative finding: always evaluate if possibleto defer surgery and if ''tele-help'' is available