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Placenta Praevia (Clinical features (lie and presentation may be abnormal,…
Placenta Praevia
Clinical features
lie and presentation may be abnormal
fetal heart normal
uterus not tender
coagulation problems rare
no pain
small bleeds before large
shock in proportion to visible loss
Classic grading
II. reaches os doesn't cover it
III. covers of before dilation only
I. placenta reaches lower segment but not internal os
Associated factors
multiple pregnancies
LSCS
multiparity
placenta lies partly or whollly in rh lower uterine segment
5% at 16-20W
incidence 0.5% as most move away