Systematic review of accuracy of ultrasound in the diagnosis of vasa previa

Abstract

ABSTRACT

Prenatal diagnosis and management of vasa previa in twin pregnancies: a case series and systematic review

“…6 A recent systematic review of ultrasound in the diagnosis of VP including two prospective and six retrospective cohort studies out of which six had a poor methodology found prenatal detection rates ranging between 53% (10/19) to 100% for a total of 442,633 women, including 138 cases of VP. 36 Four out of the eight studies used TVS for primary assessment, while the remaining four studies used transabdominal ultrasound and only used TVS when a VP was suspected on the transabdominal scan. The gestational age at the time of diagnosis was reported in five studies and ranged from 18+0 to 26+6 weeks.…”

“…37 However, the definitive placenta is only fully formed by 10-11 weeks of gestation 1 making it difficult in many cases to predict the final position of the umbilical cord and to identify placental morphologic anomalies in particular in twins. The performance of ultrasound in screening for and diagnosing VP considered more efficient at around mid -1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 12 12 gestation [3][4][5]36 and the mean gestational age at diagnosis in twins, in our series and in the literature, was 26+5 and 23+6 weeks, respectively.…”

Benckiser Haemorrhage Reverouble Delivery Complication

“…Later it was shown that this method is not reproducible because of the difficulties of visualizing small diameter vessels buried in the bottom of the pelvis. This examination should therefore be coupled to the vaginal color doppler to improve the visualization of vascular flow (Baulies et al, 2007;Cipriano et al, 2010;Hasegawa et al, 2011;Nishtar and Wood, 2012;Ruiter et al, 2015).…”

Clinical value of color doppler ultrasound in prenatal diagnosis of umbilical cord entry abnormity

“…Therefore, if umbilical cord has abnormity, it can threaten the life of mother and child. Abnormal umbilical cord insertion, including MUCEA and VUCEA, is clinically commonly seen 12,13…”