Download het volledig rapport (302 p.) - KCE

KCE reports vol. 6A Prenatale zorg 195
1. d. Screening for placenta praevia
What is the sensitivity and specificity of a transvaginal/ transabdominal ultrasound scan and does transvaginal ultrasound cause vaginal
bleeding?
Study Ref Population Intervention Outcomes Results Comments Study type EL
Leerentveld et 4 [549] 100 women with In group with Sensitivity and Sensitivity: 87.5%,
CS 3
al., 1990
second or third suspected specificity of 95% CI 61.7 to
trimester placenta praevia transvaginal 98.4
haemorrhage, (n=15)
placental
suspected transvaginal scan localisation Specificity: 98.8%,
placenta praevia, performed at 31
95%CI 93.4 to
fetal
weeks (median). Cases of vaginal 100
malpresentation In the rest of the bleeding
or nonengaged women (n=85)
No cases of
presenting part transvaginal
vaginal bleeding
from 1988 to ultrasound
and no woman
1990
performed at 29
who presented
weeks (median)
with vaginal
haemorrhage
Findings at
(n=76) displayed
delivery used as
aggravated
gold standard
bleeding after
sonography
Oppenheimer et 4 [550] 36 pregnant Eligible women Cases of vaginal No case of
CS 3
al., 2001
women with a identified by bleeding from vaginal bleeding
placenta lying transvaginal transvaginal
within 30mm of ultrasound and ultrasound Procedure also
the internal repeated every 4
reported to be
cervical os or weeks until
well tolerated by
overlapping it at leading edge
all women
or after 26 migrated beyond
weeks
30 mm or
delivery
Sherman et al., 4 [551] 38 women with Group 1 (n = Diagnosis of Group 1, on Method of RCT 1b
1991
suspected 20): abdominal placenta praevia initial
randomisation